/* ===== 全局重置与变量 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1a1a2e;
    --secondary: #16213e;
    --accent: #f0c040;
    --accent2: #e94560;
    --text: #e0e0e0;
    --text-dark: #1a1a2e;
    --bg: #0f0f23;
    --card: #1e1e3a;
    --glass: rgba(255,255,255,0.05);
    --shadow: 0 8px 32px rgba(0,0,0,0.3);
    --radius: 16px;
    --transition: 0.3s ease;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    transition: background var(--transition), color var(--transition);
}

body.light {
    --primary: #ffffff;
    --secondary: #f5f5f5;
    --accent: #d4a017;
    --accent2: #c0392b;
    --text: #1a1a2e;
    --text-dark: #ffffff;
    --bg: #f0f2f5;
    --card: #ffffff;
    --glass: rgba(0,0,0,0.03);
    --shadow: 0 8px 32px rgba(0,0,0,0.1);
}

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

a:hover {
    color: var(--accent2);
}

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

/* ===== 工具类 ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #aaa;
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #d4a017);
    color: var(--text-dark);
    box-shadow: 0 4px 20px rgba(240,192,64,0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(240,192,64,0.5);
}

.btn-secondary {
    background: var(--glass);
    color: var(--text);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
}

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

.card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255,255,255,0.05);
    transition: all var(--transition);
    backdrop-filter: blur(10px);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    border-color: var(--accent);
}

.glass {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
}

.grid {
    display: grid;
    gap: 30px;
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

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

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

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

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

.hidden {
    display: none;
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== 响应式布局 ===== */
@media (max-width: 992px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    .section {
        padding: 50px 0;
    }
    .section-title {
        font-size: 1.8rem;
    }
}

/* ===== 头部导航 ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15,15,35,0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transition: background var(--transition);
}

body.light header {
    background: rgba(255,255,255,0.9);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 5px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition);
}

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

.nav-links a.active {
    color: var(--accent);
}

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

.nav-toggle span {
    width: 28px;
    height: 3px;
    background: var(--text);
    border-radius: 3px;
    transition: all var(--transition);
}

.dark-toggle {
    background: none;
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--text);
    padding: 8px 16px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all var(--transition);
}

.dark-toggle:hover {
    background: var(--glass);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(15,15,35,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 30px;
        gap: 20px;
        transform: translateY(-120%);
        transition: transform 0.4s ease;
        border-bottom: 1px solid rgba(255,255,255,0.05);
        z-index: 999;
    }
    .nav-links.open {
        transform: translateY(0);
    }
    body.light .nav-links {
        background: rgba(255,255,255,0.98);
    }
}

/* ===== Hero 区域 ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(240,192,64,0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 50%, rgba(233,69,96,0.06) 0%, transparent 60%);
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 60px 0;
}

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: #aaa;
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-image svg {
    width: 100%;
    height: auto;
    max-width: 500px;
    margin: 0 auto;
    display: block;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--glass);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    margin-bottom: 20px;
    border: 1px solid rgba(240,192,64,0.2);
}

.hero-badge svg {
    width: 16px;
    height: 16px;
    fill: var(--accent);
}

/* ===== 轮播 ===== */
.carousel {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    margin-top: 30px;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}

.carousel-slide {
    min-width: 100%;
    padding: 40px;
    background: var(--card);
    border-radius: var(--radius);
    text-align: center;
}

.carousel-slide h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--accent);
}

.carousel-slide p {
    color: #aaa;
    max-width: 600px;
    margin: 0 auto;
}

.carousel-nav {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    cursor: pointer;
    transition: all var(--transition);
    border: none;
}

.carousel-dot.active {
    background: var(--accent);
    transform: scale(1.2);
}

/* ===== 统计数字 ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: var(--glass);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.05);
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: #aaa;
    margin-top: 8px;
    font-size: 0.95rem;
}

/* ===== 关于 ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
    }
}

.about-text h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.about-text p {
    color: #aaa;
    margin-bottom: 15px;
}

.values {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}

@media (max-width: 768px) {
    .values {
        grid-template-columns: repeat(2, 1fr);
    }
}

.value-item {
    text-align: center;
    padding: 25px;
    background: var(--glass);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    transition: all var(--transition);
}

.value-item:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
}

.value-item svg {
    width: 40px;
    height: 40px;
    fill: var(--accent);
    margin-bottom: 15px;
}

.value-item h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.value-item p {
    color: #aaa;
    font-size: 0.9rem;
}

/* ===== 团队 ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

@media (max-width: 992px) {
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .team-grid {
        grid-template-columns: 1fr;
    }
}

.team-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--card);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    transition: all var(--transition);
}

.team-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.team-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 15px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-dark);
}

.team-card h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.team-card p {
    color: #aaa;
    font-size: 0.85rem;
}

.tagline {
    font-size: 1rem;
    color: #888;
    margin-top: 5px;
}

/* ===== 产品 ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

@media (max-width: 992px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
}

.product-card {
    padding: 30px;
    background: var(--card);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    transition: all var(--transition);
    text-align: center;
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.product-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: var(--glass);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-icon svg {
    width: 30px;
    height: 30px;
    fill: var(--accent);
}

.product-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.product-card p {
    color: #aaa;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.product-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    background: rgba(240,192,64,0.15);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
}

/* ===== 优势 ===== */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

@media (max-width: 992px) {
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .advantage-grid {
        grid-template-columns: 1fr;
    }
}

.advantage-card {
    padding: 30px;
    background: var(--glass);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    text-align: center;
    transition: all var(--transition);
}

.advantage-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
}

.advantage-card svg {
    width: 36px;
    height: 36px;
    fill: var(--accent);
    margin-bottom: 15px;
}

.advantage-card h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.advantage-card p {
    color: #aaa;
    font-size: 0.9rem;
}

/* ===== 服务 ===== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

@media (max-width: 992px) {
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .service-grid {
        grid-template-columns: 1fr;
    }
}

.service-card {
    padding: 30px;
    background: var(--card);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    transition: all var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--accent);
}

.service-card p {
    color: #aaa;
    font-size: 0.9rem;
}

/* ===== 解决方案 ===== */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

@media (max-width: 768px) {
    .solution-grid {
        grid-template-columns: 1fr;
    }
}

.solution-card {
    padding: 30px;
    background: var(--glass);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    transition: all var(--transition);
}

.solution-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
}

.solution-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.solution-card p {
    color: #aaa;
    font-size: 0.9rem;
}

/* ===== 行业 ===== */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

@media (max-width: 992px) {
    .industry-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .industry-grid {
        grid-template-columns: 1fr;
    }
}

.industry-card {
    padding: 25px;
    background: var(--glass);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    text-align: center;
    transition: all var(--transition);
}

.industry-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
}

.industry-card svg {
    width: 36px;
    height: 36px;
    fill: var(--accent);
    margin-bottom: 12px;
}

.industry-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.industry-card p {
    color: #aaa;
    font-size: 0.9rem;
}

/* ===== 案例 ===== */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

@media (max-width: 992px) {
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .case-grid {
        grid-template-columns: 1fr;
    }
}

.case-card {
    padding: 25px;
    background: var(--card);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    transition: all var(--transition);
}

.case-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.case-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.case-card p {
    color: #aaa;
    font-size: 0.9rem;
}

.case-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 15px;
    background: rgba(240,192,64,0.15);
    color: var(--accent);
    font-size: 0.8rem;
    margin-bottom: 10px;
}

/* ===== 合作伙伴 ===== */
.partner-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    align-items: center;
}

@media (max-width: 768px) {
    .partner-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--glass);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    height: 80px;
    transition: all var(--transition);
}

.partner-item:hover {
    border-color: var(--accent);
    transform: scale(1.05);
}

.partner-item svg {
    width: 80px;
    height: 30px;
    fill: #888;
    opacity: 0.6;
}

/* ===== 评价 ===== */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

@media (max-width: 768px) {
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
}

.testimonial-card {
    padding: 30px;
    background: var(--card);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    font-size: 4rem;
    color: var(--accent);
    opacity: 0.2;
    position: absolute;
    top: 10px;
    left: 20px;
    font-family: Georgia, serif;
}

.testimonial-card p {
    color: #ccc;
    font-style: italic;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--text-dark);
}

.testimonial-name {
    font-weight: 600;
}

.testimonial-role {
    color: #aaa;
    font-size: 0.85rem;
}

/* ===== 新闻 ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

@media (max-width: 992px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
}

.news-card {
    padding: 25px;
    background: var(--card);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    transition: all var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.news-date {
    font-size: 0.85rem;
    color: #888;
    margin-bottom: 8px;
}

.news-card h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.news-card p {
    color: #aaa;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.news-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 15px;
    background: rgba(240,192,64,0.15);
    color: var(--accent);
    font-size: 0.8rem;
}

/* ===== FAQ ===== */
.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    gap: 15px;
}

.faq-item {
    background: var(--card);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
    overflow: hidden;
    transition: all var(--transition);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.05rem;
    background: none;
    border: none;
    color: var(--text);
    width: 100%;
    text-align: left;
    transition: background var(--transition);
}

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

.faq-question svg {
    width: 20px;
    height: 20px;
    fill: var(--accent);
    transition: transform var(--transition);
    flex-shrink: 0;
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 25px 20px;
    color: #aaa;
    font-size: 0.95rem;
    display: none;
}

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

/* ===== 联系我们 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.contact-info {
    padding: 30px;
    background: var(--glass);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
}

.contact-info h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
    color: #ccc;
}

.contact-item svg {
    width: 20px;
    height: 20px;
    fill: var(--accent);
    flex-shrink: 0;
}

.contact-form {
    display: grid;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    background: var(--glass);
    color: var(--text);
    font-size: 1rem;
    transition: border var(--transition);
    outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--accent);
}

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

.contact-form button {
    justify-self: start;
}

.map-placeholder {
    height: 250px;
    background: var(--glass);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,0.05);
    margin-top: 20px;
    color: #888;
}

/* ===== EEAT ===== */
.eeat-section {
    background: var(--glass);
    border-radius: var(--radius);
    padding: 30px;
    margin-top: 40px;
    border: 1px solid rgba(255,255,255,0.05);
}

.eeat-section h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--accent);
}

.eeat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .eeat-grid {
        grid-template-columns: 1fr;
    }
}

.eeat-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.eeat-item svg {
    width: 24px;
    height: 24px;
    fill: var(--accent);
    flex-shrink: 0;
    margin-top: 4px;
}

.eeat-item p {
    color: #aaa;
    font-size: 0.9rem;
}

.eeat-item strong {
    color: var(--text);
}

/* ===== 文章 ===== */
.article-content {
    max-width: 800px;
    margin: 0 auto;
    color: #ccc;
    font-size: 1rem;
    line-height: 1.8;
}

.article-content h2 {
    font-size: 1.8rem;
    margin: 30px 0 15px;
    color: var(--text);
}

.article-content h3 {
    font-size: 1.3rem;
    margin: 25px 0 10px;
    color: var(--accent);
}

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

.article-content ul {
    margin: 15px 0;
    padding-left: 20px;
}

.article-content li {
    margin-bottom: 8px;
}

/* ===== HowTo ===== */
.howto-steps {
    max-width: 700px;
    margin: 0 auto;
    display: grid;
    gap: 20px;
}

.howto-step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 20px;
    background: var(--glass);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.05);
}

.howto-step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    color: var(--text-dark);
    flex-shrink: 0;
    font-size: 1.1rem;
}

.howto-step-content h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.howto-step-content p {
    color: #aaa;
    font-size: 0.9rem;
}

/* ===== 网站地图 ===== */
.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

@media (max-width: 992px) {
    .sitemap-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .sitemap-grid {
        grid-template-columns: 1fr;
    }
}

.sitemap-group h4 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--accent);
}

.sitemap-group ul {
    list-style: none;
}

.sitemap-group li {
    margin-bottom: 6px;
}

.sitemap-group a {
    color: #aaa;
    font-size: 0.9rem;
}

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

/* ===== 面包屑 ===== */
.breadcrumb {
    display: flex;
    gap: 8px;
    list-style: none;
    padding: 10px 0;
    font-size: 0.9rem;
    color: #888;
    flex-wrap: wrap;
}

.breadcrumb li + li::before {
    content: '/';
    margin-right: 8px;
    color: #555;
}

.breadcrumb a {
    color: #888;
}

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

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

/* ===== 搜索模态 ===== */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

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

.search-box {
    width: 90%;
    max-width: 600px;
    background: var(--card);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.search-box input {
    width: 100%;
    padding: 15px 20px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    background: var(--glass);
    color: var(--text);
    font-size: 1.1rem;
    outline: none;
    transition: border var(--transition);
}

.search-box input:focus {
    border-color: var(--accent);
}

.search-results {
    margin-top: 20px;
    max-height: 300px;
    overflow-y: auto;
}

.search-result-item {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    color: #ccc;
    cursor: pointer;
}

.search-result-item:hover {
    color: var(--accent);
}

.search-close {
    position: absolute;
    top: 20px;
    right: 30px;
    background: none;
    border: none;
    color: var(--text);
    font-size: 2rem;
    cursor: pointer;
}

/* ===== 页脚 ===== */
.footer {
    background: var(--primary);
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-brand h3 {
    font-size: 1.8rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
}

.footer-brand p {
    color: #aaa;
    font-size: 0.9rem;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--accent);
}

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

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: #aaa;
    font-size: 0.9rem;
    transition: color var(--transition);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.05);
    font-size: 0.85rem;
    color: #888;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-bottom-links a {
    color: #888;
    font-size: 0.85rem;
}

.footer-bottom-links a:hover {
    color: var(--accent);
}

/* ===== 返回顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: var(--text-dark);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(240,192,64,0.3);
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(240,192,64,0.5);
}

/* ===== 滚动动画 ===== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}