/* 亚博体育 - 完整样式表 */
/* 基础重置与变量 */
:root {
    --primary: #1a1a2e;
    --secondary: #16213e;
    --accent: #f5c518;
    --accent-hover: #e0b414;
    --text: #e0e0e0;
    --text-light: #a0a0b0;
    --bg: #0f0f23;
    --bg-card: rgba(255, 255, 255, 0.05);
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.12);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --radius: 16px;
    --radius-sm: 8px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
    --header-height: 70px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* 渐变背景动画 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 20% 50%, rgba(245, 197, 24, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 20%, rgba(26, 26, 46, 0.8) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(22, 33, 62, 0.6) 0%, transparent 50%);
    z-index: -2;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(245, 197, 24, 0.03) 0%, transparent 30%, transparent 70%, rgba(245, 197, 24, 0.03) 100%);
    z-index: -1;
    pointer-events: none;
}

/* 容器 */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* 标题通用样式 */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

h2 {
    font-size: 2.4rem;
    text-align: center;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--accent) 0%, #ffd700 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 48px;
    line-height: 1.7;
}

section {
    padding: 100px 0;
    position: relative;
}

/* 按钮 */
.btn-primary {
    display: inline-block;
    padding: 14px 36px;
    background: linear-gradient(135deg, var(--accent) 0%, #e6b800 100%);
    color: var(--primary);
    font-weight: 700;
    font-size: 1rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(245, 197, 24, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(245, 197, 24, 0.4);
}

/* 毛玻璃卡片通用 */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

/* ===== 头部导航 ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 15, 35, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition);
}

header.scrolled {
    background: rgba(15, 15, 35, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo svg {
    width: 120px;
    height: 40px;
    color: var(--text);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
    margin: 0 24px;
}

.nav-links li a {
    color: var(--text-light);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links li a:hover,
.nav-links li a.active {
    color: var(--accent);
    background: rgba(245, 197, 24, 0.08);
}

.nav-links li a.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

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

.nav-actions button {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-actions button:hover {
    color: var(--accent);
    background: rgba(245, 197, 24, 0.1);
}

.menu-toggle {
    display: none;
}

/* ===== Banner 轮播 ===== */
.hero-banner {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 0;
    margin-top: 0;
}

.banner-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.slide.active {
    opacity: 1;
}

.slide:nth-child(1) {
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.9) 0%, rgba(22, 33, 62, 0.7) 100%),
                radial-gradient(circle at 30% 40%, rgba(245, 197, 24, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(255, 215, 0, 0.1) 0%, transparent 50%);
}

.slide:nth-child(2) {
    background: linear-gradient(135deg, rgba(22, 33, 62, 0.9) 0%, rgba(26, 26, 46, 0.7) 100%),
                radial-gradient(circle at 60% 30%, rgba(245, 197, 24, 0.12) 0%, transparent 50%),
                radial-gradient(circle at 20% 70%, rgba(255, 215, 0, 0.08) 0%, transparent 50%);
}

.slide:nth-child(3) {
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.85) 0%, rgba(22, 33, 62, 0.8) 100%),
                radial-gradient(circle at 40% 50%, rgba(245, 197, 24, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 215, 0, 0.12) 0%, transparent 50%);
}

.slide-content {
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
    z-index: 1;
}

.slide-content h1,
.slide-content h2 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    -webkit-text-fill-color: initial;
    background: none;
    color: #fff;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.slide-content h2 {
    font-size: 3rem;
}

.slide-content p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
    line-height: 1.7;
}

.banner-nav {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 2;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.dot.active {
    background: var(--accent);
    border-color: rgba(245, 197, 24, 0.4);
    transform: scale(1.2);
}

.banner-prev,
.banner-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 2;
}

.banner-prev { left: 24px; }
.banner-next { right: 24px; }

.banner-prev:hover,
.banner-next:hover {
    background: rgba(245, 197, 24, 0.2);
    border-color: var(--accent);
}

/* ===== About ===== */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.about-card {
    padding: 32px;
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-4px);
    border-color: rgba(245, 197, 24, 0.3);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.about-card h3 {
    color: var(--accent);
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.about-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== Products ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.product-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.product-card:hover {
    border-color: rgba(245, 197, 24, 0.2);
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(245, 197, 24, 0.05);
}

.product-icon {
    margin-bottom: 20px;
    color: var(--accent);
}

.product-icon svg {
    width: 64px;
    height: 64px;
}

.product-card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: #fff;
}

.product-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== Advantages ===== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.advantage-item {
    text-align: center;
    padding: 24px;
    transition: var(--transition);
}

.advantage-item svg {
    color: var(--accent);
    margin-bottom: 16px;
}

.advantage-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #fff;
}

.advantage-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== Services ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.service-card {
    padding: 32px;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: rgba(245, 197, 24, 0.3);
}

.service-card h3 {
    color: var(--accent);
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== Solutions ===== */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.solution-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.solution-card:hover {
    border-color: rgba(245, 197, 24, 0.2);
    transform: translateY(-4px);
}

.solution-card h3 {
    color: var(--accent);
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.solution-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== Scenarios ===== */
.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.scenario-item {
    text-align: center;
    padding: 24px;
    transition: var(--transition);
}

.scenario-item svg {
    color: var(--accent);
    margin-bottom: 16px;
}

.scenario-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #fff;
}

.scenario-item p {
    color: var(--text-light);
}

/* ===== Data Showcase ===== */
.data-showcase {
    background: linear-gradient(135deg, rgba(245, 197, 24, 0.05) 0%, transparent 50%, rgba(245, 197, 24, 0.05) 100%);
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    text-align: center;
}

.data-item {
    padding: 24px;
}

.data-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    display: inline;
}

.data-unit {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent);
    margin-left: 4px;
}

.data-item p {
    color: var(--text-light);
    margin-top: 8px;
    font-size: 1.1rem;
}

/* ===== Cases ===== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.case-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.case-card:hover {
    border-color: rgba(245, 197, 24, 0.2);
    transform: translateY(-4px);
}

.case-card h3 {
    color: var(--accent);
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.case-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== Clients ===== */
.clients-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 32px;
}

.client-item {
    padding: 16px 24px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    border: 1px solid transparent;
}

.client-item:hover {
    border-color: rgba(245, 197, 24, 0.2);
    transform: scale(1.05);
}

.client-item svg {
    color: var(--text-light);
    opacity: 0.6;
}

/* ===== Testimonials ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.testimonial-card {
    padding: 32px;
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-4px);
}

.testimonial-card p {
    font-style: italic;
    color: var(--text);
    margin-bottom: 16px;
    line-height: 1.7;
}

.testimonial-card cite {
    color: var(--accent);
    font-style: normal;
    font-weight: 500;
}

/* ===== News ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.news-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.news-card:hover {
    border-color: rgba(245, 197, 24, 0.2);
    transform: translateY(-4px);
}

.news-card h3 {
    font-size: 1.15rem;
    color: #fff;
    margin-bottom: 8px;
}

.news-card time {
    display: block;
    color: var(--accent);
    font-size: 0.85rem;
    margin-bottom: 12px;
    opacity: 0.7;
}

.news-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== Articles ===== */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.article-item {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.article-item:hover {
    border-color: rgba(245, 197, 24, 0.2);
    transform: translateY(-4px);
}

.article-item h3 {
    font-size: 1.15rem;
    color: #fff;
    margin-bottom: 12px;
}

.article-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 12px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid transparent;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: rgba(245, 197, 24, 0.15);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--accent);
}

.faq-question svg {
    flex-shrink: 0;
    transition: var(--transition);
}

.faq-question[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== HowTo ===== */
.howto-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.step {
    text-align: center;
    padding: 28px 20px;
    background: var(--bg-card);
    border-radius: var(--radius);
    transition: var(--transition);
    border: 1px solid transparent;
}

.step:hover {
    border-color: rgba(245, 197, 24, 0.2);
    transform: translateY(-4px);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent) 0%, #e6b800 100%);
    color: var(--primary);
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.step h3 {
    font-size: 1.15rem;
    color: #fff;
    margin-bottom: 8px;
}

.step p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info p {
    margin-bottom: 12px;
    color: var(--text-light);
    line-height: 1.7;
}

.contact-info strong {
    color: var(--accent);
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(245, 197, 24, 0.1);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-light);
}

.contact-form button {
    align-self: flex-start;
}

/* ===== Team ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 32px;
    text-align: center;
}

.team-member {
    padding: 28px 20px;
    background: var(--bg-card);
    border-radius: var(--radius);
    transition: var(--transition);
    border: 1px solid transparent;
}

.team-member:hover {
    border-color: rgba(245, 197, 24, 0.2);
    transform: translateY(-4px);
}

.team-member svg {
    color: var(--accent);
    margin-bottom: 16px;
    opacity: 0.8;
}

.team-member h3 {
    font-size: 1.15rem;
    color: #fff;
    margin-bottom: 4px;
}

.team-member p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ===== Brand History ===== */
.timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), transparent);
}

.timeline-item {
    position: relative;
    padding: 24px 40px;
    margin-bottom: 32px;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid transparent;
    transition: var(--transition);
}

.timeline-item:hover {
    border-color: rgba(245, 197, 24, 0.2);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 32px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 16px rgba(245, 197, 24, 0.4);
}

.timeline-item:nth-child(odd) {
    margin-right: 50%;
    text-align: right;
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    text-align: left;
}

.timeline-item h3 {
    color: var(--accent);
    font-size: 1.3rem;
    margin-bottom: 6px;
}

.timeline-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== Sitemap ===== */
.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
}

.sitemap-grid h3 {
    color: var(--accent);
    font-size: 1.1rem;
    margin-bottom: 16px;
}

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

.sitemap-grid ul li {
    margin-bottom: 8px;
}

.sitemap-grid ul li a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

.sitemap-grid ul li a:hover {
    color: var(--accent);
}

/* ===== Links ===== */
.links-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.links-grid a {
    padding: 10px 24px;
    background: var(--bg-card);
    border-radius: 50px;
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid transparent;
    font-size: 0.95rem;
}

.links-grid a:hover {
    border-color: rgba(245, 197, 24, 0.2);
    color: var(--accent);
}

/* ===== Privacy / Disclaimer / Security / Commitment ===== */
.privacy p,
.disclaimer p,
.security p,
.commitment p {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    color: var(--text-light);
    line-height: 1.7;
    font-size: 1.05rem;
}

/* ===== Footer ===== */
footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand svg {
    color: var(--text);
    margin-bottom: 12px;
}

.footer-brand p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--accent);
    font-size: 1.1rem;
    margin-bottom: 16px;
}

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

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

.footer-links ul li a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-contact p {
    color: var(--text-light);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.footer-bottom {
    text-align: center;
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent);
    border: none;
    color: var(--primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(245, 197, 24, 0.3);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 30px rgba(245, 197, 24, 0.4);
}

/* ===== Search Modal ===== */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.search-modal.active {
    opacity: 1;
    visibility: visible;
}

.search-modal-content {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 90%;
    max-width: 600px;
}

.search-modal-content input {
    flex: 1;
    padding: 18px 24px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 1.2rem;
    outline: none;
    transition: var(--transition);
}

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

.search-modal-content input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.search-close {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 12px;
    transition: var(--transition);
}

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

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

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

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .nav-links {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        width: 100%;
        flex-direction: column;
        background: rgba(15, 15, 35, 0.98);
        backdrop-filter: blur(20px);
        padding: 16px 24px;
        gap: 4px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        margin-left: 0;
        margin-right: 0;
        text-align: left;
    }

    .timeline::before {
        left: 24px;
    }

    .timeline-item::before {
        left: 24px;
    }
}

@media (max-width: 768px) {
    h2 {
        font-size: 1.8rem;
    }

    section {
        padding: 60px 0;
    }

    .slide-content h1,
    .slide-content h2 {
        font-size: 2.2rem;
    }

    .slide-content h2 {
        font-size: 2rem;
    }

    .slide-content p {
        font-size: 1rem;
    }

    .banner-prev,
    .banner-next {
        width: 40px;
        height: 40px;
    }

    .banner-prev { left: 12px; }
    .banner-next { right: 12px; }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .data-number {
        font-size: 2.2rem;
    }

    .about-grid,
    .products-grid,
    .services-grid,
    .solutions-grid,
    .cases-grid,
    .news-grid,
    .articles-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid,
    .scenarios-grid,
    .howto-steps {
        grid-template-columns: 1fr 1fr;
    }

    .team-grid {
        grid-template-columns: 1fr 1fr;
    }

    .sitemap-grid {
        grid-template-columns: 1fr 1fr;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    h2 {
        font-size: 1.5rem;
    }

    .section-desc {
        font-size: 0.95rem;
        margin-bottom: 32px;
    }

    .slide-content h1,
    .slide-content h2 {
        font-size: 1.8rem;
    }

    .advantages-grid,
    .scenarios-grid,
    .howto-steps {
        grid-template-columns: 1fr;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }

    .sitemap-grid {
        grid-template-columns: 1fr;
    }

    .data-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ===== 暗色模式增强 ===== */
@media (prefers-color-scheme: light) {
    :root {
        --primary: #1a1a2e;
        --secondary: #16213e;
        --accent: #f5c518;
        --accent-hover: #e0b414;
        --text: #e0e0e0;
        --text-light: #a0a0b0;
        --bg: #0f0f23;
        --bg-card: rgba(255, 255, 255, 0.05);
        --glass-bg: rgba(255, 255, 255, 0.08);
        --glass-border: rgba(255, 255, 255, 0.12);
    }
}

/* ===== 自定义滚动条 ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: rgba(245, 197, 24, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(245, 197, 24, 0.5);
}

/* ===== 选中文本 ===== */
::selection {
    background: rgba(245, 197, 24, 0.3);
    color: #fff;
}

/* ===== 图片与SVG响应式 ===== */
img,
svg {
    max-width: 100%;
    height: auto;
}

/* ===== 表单元素统一 ===== */
button,
input,
textarea {
    font-family: inherit;
}

/* ===== 焦点样式 ===== */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ===== 打印样式 ===== */
@media print {
    header,
    .back-to-top,
    .search-modal,
    .banner-prev,
    .banner-next,
    .banner-nav {
        display: none !important;
    }

    body {
        background: #fff;
        color: #000;
    }

    section {
        padding: 40px 0;
        page-break-inside: avoid;
    }
}