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

:root {
    --primary-color: #1a73e8;
    --primary-dark: #1557b0;
    --secondary-color: #ff6b35;
    --accent-color: #00d4aa;
    --bg-dark: #0a0e1a;
    --bg-card: #ffffff;
    --bg-light: #f5f7fa;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a68;
    --text-muted: #8a8aa0;
    --border-color: #e8eaf0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.15);
    --gradient-primary: linear-gradient(135deg, #1a73e8 0%, #00d4aa 100%);
    --gradient-dark: linear-gradient(135deg, #0a0e1a 0%, #1a1a2e 100%);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    line-height: 1.7;
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 动画定义 ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(26, 115, 232, 0.4);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 15px rgba(26, 115, 232, 0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s ease-out forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s ease-out forwards;
}

/* ===== 导航栏 ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 1.1rem;
}

.nav-menu {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-menu a {
    padding: 10px 18px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    position: relative;
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background: rgba(26, 115, 232, 0.08);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 24px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-download {
    padding: 10px 24px;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 115, 232, 0.4);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero 区域 ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--gradient-dark);
    overflow: hidden;
    padding-top: 72px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(26, 115, 232, 0.25) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0, 212, 170, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(255, 107, 53, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-particles span {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float linear infinite;
}

.hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    color: #fff;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 50%, #c4f1e8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.btn-primary {
    padding: 16px 36px;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 8px 24px rgba(26, 115, 232, 0.4);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(26, 115, 232, 0.5);
}

.btn-secondary {
    padding: 16px 36px;
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.hero-stat-item {
    display: flex;
    flex-direction: column;
}

.hero-stat-item .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
}

.hero-stat-item .stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 4px;
}

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

.hero-phone {
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #1a1a2e, #16213e);
    border-radius: 40px;
    padding: 16px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.hero-phone::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 6px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 3px;
    z-index: 2;
}

.hero-phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #0f0f23 0%, #1a1a2e 100%);
    border-radius: 28px;
    overflow: hidden;
    padding: 40px 16px 20px;
}

.phone-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.phone-logo {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
}

.phone-balance {
    text-align: center;
    margin-bottom: 24px;
}

.phone-balance .label {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

.phone-balance .amount {
    font-size: 1.75rem;
    font-weight: 700;
    color: #fff;
    margin-top: 4px;
}

.phone-balance .change {
    font-size: 0.75rem;
    color: var(--accent-color);
    margin-top: 4px;
}

.phone-chart {
    height: 120px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
}

.phone-chart svg {
    width: 100%;
    height: 100%;
}

.phone-menu {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.phone-menu-item {
    text-align: center;
}

.phone-menu-icon {
    width: 40px;
    height: 40px;
    background: rgba(26, 115, 232, 0.2);
    border-radius: 10px;
    margin: 0 auto 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.phone-menu-label {
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.6);
}

.phone-list {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 12px;
}

.phone-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.phone-list-item:last-child {
    border-bottom: none;
}

.phone-list-name {
    font-size: 0.75rem;
    color: #fff;
}

.phone-list-price {
    font-size: 0.75rem;
    color: var(--accent-color);
}

.phone-list-change {
    font-size: 0.65rem;
    color: var(--accent-color);
}

/* ===== 通用 Section 样式 ===== */
.section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(26, 115, 232, 0.08);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 特性区域 ===== */
.features {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}

.feature-card {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 36px 28px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(26, 115, 232, 0.15);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.1), rgba(0, 212, 170, 0.1));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== 服务介绍 ===== */
.services {
    background: #fff;
}

.services-wrap {
    display: grid;
    gap: 80px;
}

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

.service-item.reverse {
    direction: rtl;
}

.service-item.reverse > * {
    direction: ltr;
}

.service-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.3;
}

.service-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.service-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.service-list li::before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: var(--accent-color);
    color: #fff;
    border-radius: 50%;
    font-size: 0.7rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

.service-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 4/3;
}

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

.service-image:hover img {
    transform: scale(1.05);
}

/* ===== 详细内容区 ===== */
.details {
    background: var(--bg-light);
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.detail-card {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 40px;
    box-shadow: var(--shadow-sm);
}

.detail-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.detail-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.detail-card p:last-child {
    margin-bottom: 0;
}

/* ===== 数据统计 ===== */
.stats {
    background: var(--gradient-dark);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(26, 115, 232, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    position: relative;
    z-index: 2;
}

.stat-item {
    text-align: center;
    color: #fff;
}

.stat-number {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-item p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 8px;
}

/* ===== 常见问题 FAQ ===== */
.faq {
    background: #fff;
}

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

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.active {
    border-color: var(--primary-color);
    box-shadow: 0 4px 20px rgba(26, 115, 232, 0.12);
}

.faq-question {
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-primary);
    background: #fff;
    transition: var(--transition);
    border: none;
    width: 100%;
    text-align: left;
    font-size: 1rem;
    font-family: inherit;
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-toggle {
    width: 28px;
    height: 28px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
    margin-left: 16px;
}

.faq-item.active .faq-toggle {
    background: var(--primary-color);
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 24px 20px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== CTA 区域 ===== */
.cta {
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(26, 115, 232, 0.3) 0%, transparent 70%);
    pointer-events: none;
}

.cta-wrap {
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta h2 {
    font-size: clamp(1.75rem, 4vw, 3rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.3;
}

.cta p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 36px;
}

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

/* ===== 页脚 ===== */
.footer {
    background: #0a0e1a;
    padding: 72px 0 32px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    margin-bottom: 20px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.5);
}

.footer h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
}

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

.footer ul li a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    transition: var(--transition);
}

.footer ul li a:hover {
    color: var(--accent-color);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-contact li span {
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copyright {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
}

.footer-links a:hover {
    color: rgba(255, 255, 255, 0.7);
}

/* ===== 子页面通用样式 ===== */
.page-header {
    padding: 140px 0 80px;
    background: var(--gradient-dark);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(26, 115, 232, 0.25) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 30%, rgba(0, 212, 170, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

.page-header h1 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

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

.breadcrumb .separator {
    color: rgba(255, 255, 255, 0.3);
}

.breadcrumb .current {
    color: rgba(255, 255, 255, 0.8);
}

/* ===== 产品中心页 ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.product-card {
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(26, 115, 232, 0.2);
}

.product-image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

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

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-info {
    padding: 28px;
}

.product-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(26, 115, 232, 0.08);
    color: var(--primary-color);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: 12px;
}

.product-info h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.product-info p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.product-features span {
    padding: 4px 12px;
    background: var(--bg-light);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ===== 新闻列表页 ===== */
.news-list-wrap {
    display: grid;
    gap: 32px;
}

.news-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 28px;
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(26, 115, 232, 0.2);
}

.news-image {
    overflow: hidden;
}

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

.news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-content {
    padding: 28px 28px 28px 0;
}

.news-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.news-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.news-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
    transition: var(--transition);
}

.news-card:hover h3 {
    color: var(--primary-color);
}

.news-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
}

.read-more:hover {
    gap: 10px;
}

/* 侧边栏 */
.news-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
}

.sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-widget {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.sidebar-widget h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--bg-light);
}

.sidebar-list li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-list li:last-child {
    border-bottom: none;
}

.sidebar-list a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
    display: block;
    line-height: 1.5;
}

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

.sidebar-list .date {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-cloud a {
    padding: 6px 14px;
    background: var(--bg-light);
    color: var(--text-secondary);
    border-radius: 50px;
    font-size: 0.8rem;
    transition: var(--transition);
}

.tag-cloud a:hover {
    background: var(--primary-color);
    color: #fff;
}

/* ===== 新闻详情页 ===== */
.article-wrap {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
}

.article-main {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 48px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.article-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.article-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.4;
}

.article-meta {
    display: flex;
    gap: 20px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-body {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text-primary);
}

.article-body p {
    margin-bottom: 24px;
}

.article-body h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 40px 0 16px;
}

.article-body h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 32px 0 12px;
}

.article-body ul, .article-body ol {
    margin: 0 0 24px 20px;
}

.article-body li {
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.article-image {
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: 24px 0;
}

.article-image img {
    width: 100%;
    height: auto;
}

.article-image figcaption {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 12px 0 0;
}

.article-footer {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.article-tags a {
    padding: 6px 14px;
    background: var(--bg-light);
    color: var(--text-secondary);
    border-radius: 50px;
    font-size: 0.8rem;
}

.article-tags a:hover {
    background: var(--primary-color);
    color: #fff;
}

/* ===== 关于我们页 ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 4/5;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-text h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.3;
}

.about-text p {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 18px;
    font-size: 1.02rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.value-card {
    text-align: center;
    padding: 40px 28px;
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.value-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto 20px;
    color: #fff;
}

.value-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.value-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 28px;
}

.team-card {
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.team-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.team-photo {
    aspect-ratio: 1;
    overflow: hidden;
}

.team-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-info {
    padding: 20px;
    text-align: center;
}

.team-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.team-info .role {
    font-size: 0.85rem;
    color: var(--primary-color);
}

/* ===== 联系我们页 ===== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-card {
    display: flex;
    gap: 20px;
    padding: 32px;
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(26, 115, 232, 0.2);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.1), rgba(0, 212, 170, 0.1));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.contact-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.contact-form-wrap {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.contact-form-wrap h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}

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

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-light);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    background: #fff;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

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

/* ===== 分页 ===== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.pagination a {
    padding: 10px 16px;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.pagination a:hover,
.pagination a.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* ===== 返回顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(26, 115, 232, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-phone {
        width: 240px;
        height: 480px;
    }
    
    .hero-actions, .hero-stats {
        justify-content: center;
    }
    
    .service-item, .about-content, .contact-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .service-item.reverse {
        direction: ltr;
    }
    
    .news-layout, .article-wrap {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    
    .news-card {
        grid-template-columns: 1fr;
    }
    
    .news-image {
        aspect-ratio: 16/9;
    }
    
    .news-content {
        padding: 24px;
    }
    
    .details-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu, .header-actions {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu.open {
        display: flex;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: #fff;
        padding: 20px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    }
    
    .section {
        padding: 60px 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .sidebar {
        grid-template-columns: 1fr;
    }
    
    .article-main, .contact-form-wrap {
        padding: 28px;
    }
    
    .page-header {
        padding: 120px 0 60px;
    }
    
    .hero {
        min-height: auto;
        padding: 100px 0 60px;
    }
    
    .hero-phone {
        width: 200px;
        height: 400px;
    }
    
    .hero-stat-item .stat-value {
        font-size: 1.5rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    .cta-buttons, .hero-actions {
        width: 100%;
    }
    
    .btn-primary, .btn-secondary {
        flex: 1;
        justify-content: center;
    }
    
    .service-content h3, .about-text h2 {
        font-size: 1.5rem;
    }
}