/* 全局样式 */
:root {
    --primary-color: #2c7be5;
    --secondary-color: #6c757d;
    --success-color: #00b894;
    --info-color: #0984e3;
    --warning-color: #fdcb6e;
    --danger-color: #e74c3c;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --body-bg: #f9fbfd;
    --body-color: #495057;
    --heading-color: #212529;
    --border-color: #e9ecef;
}

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

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--body-color);
    background-color: var(--body-bg);
    line-height: 1.6;
}

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

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

a:hover {
    color: #1a56a7;
}

ul {
    list-style: none;
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

/* 统计样式 */
.stats-container {
    background: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin: 20px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.stat-card {
    background: var(--light-color);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card h4 {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 10px;
    font-weight: 500;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 0;
}

.download-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.download-table th,
.download-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.download-table th {
    background: var(--primary-color);
    color: white;
    font-weight: 500;
}

.download-table tr:hover {
    background: var(--light-color);
}

.download-table tr:last-child td {
    border-bottom: none;
}

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

.btn-primary:hover {
    background-color: #1a56a7;
    color: white;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #545b62;
    color: white;
}

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.25rem;
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
}

.section-title:after {
    content: "";
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
}

/* 头部导航 */
header {
    background-color: white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo h1 {
    font-size: 1.75rem;
    margin-bottom: 0;
    color: var(--primary-color);
}

.logo p {
    font-size: 0.875rem;
    color: var(--secondary-color);
}

nav ul {
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: var(--dark-color);
    font-weight: 500;
    padding: 5px 0;
    position: relative;
}

nav a:hover, nav a.active {
    color: var(--primary-color);
}

nav a.active:after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

/* 英雄区域 */
.hero {
    padding: 80px 0;
    background-color: white;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 40px;
}

.hero-content {
    flex: 1;
}

.hero-content h2 {
    font-size: 2.75rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: var(--secondary-color);
}

.cta-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 功能亮点 */
.features-highlight {
    padding: 80px 0;
    background-color: var(--light-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.feature-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-icon i {
    font-size: 1.75rem;
    color: white;
}

.feature-card h3 {
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--secondary-color);
}

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

.link-arrow {
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.link-arrow i {
    transition: transform 0.3s;
}

.link-arrow:hover i {
    transform: translateX(5px);
}

/* 用户评价 */
.testimonials {
    padding: 80px 0;
}

.testimonial-slider {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    padding-bottom: 20px;
}

.testimonial {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    min-width: 350px;
    flex: 1;
}

.testimonial-content {
    margin-bottom: 20px;
}

.testimonial-content p {
    font-style: italic;
    color: var(--dark-color);
}

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

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-author h4 {
    margin-bottom: 0;
}

.testimonial-author p {
    font-size: 0.875rem;
    color: var(--secondary-color);
}

/* 下载区域 */
.download-cta {
    padding: 80px 0;
    background-color: var(--primary-color);
    color: white;
    text-align: center;
}

.download-content h2 {
    color: white;
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

.download-content p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.download-cta .btn-primary {
    background-color: white;
    color: var(--primary-color);
    font-size: 1.125rem;
}

.download-cta .btn-primary:hover {
    background-color: rgba(255, 255, 255, 0.9);
}

/* 页脚 */
footer {
    padding: 60px 0 20px;
    background-color: var(--dark-color);
    color: rgba(255, 255, 255, 0.8);
}

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

footer h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.25rem;
}

.footer-about p {
    line-height: 1.8;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

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

.social-links {
    margin-top: 20px;
    display: flex;
    gap: 15px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: background-color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* 使用视频页 */
.video-section { padding: 60px 0 80px; }
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.video-card {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
    padding: 16px;
    transition: transform .2s ease, box-shadow .2s ease;
}
.video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 32px rgba(0,0,0,0.08);
}
.video-thumb { position: relative; border-radius: 8px; overflow: hidden; }
.video-thumb img { width: 100%; height: 160px; object-fit: cover; display: block; }
.play-overlay {
    position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(180deg, rgba(0,0,0,.0), rgba(0,0,0,.35)); color: #fff; font-size: 28px;
}
.video-card h3 { margin: 12px 0 6px; font-size: 1.1rem; color: var(--heading-color); }
.video-card p { color: var(--secondary-color); margin-bottom: 12px; }

/* ---------- 首页三大特点（视觉优化） ---------- */
.features-highlight {
    background: linear-gradient(180deg, #f6f9ff 0%, #ffffff 100%);
}

.features-highlight .container {
    max-width: 1280px;
    padding-left: 24px;
    padding-right: 24px;
}

.features-highlight .features-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 0;
}

.features-highlight .feature-card {
    text-align: left;
    padding: 36px 28px;
    border-radius: 12px;
    border: 1px solid #eef2f7;
    box-shadow: 0 10px 30px rgba(44, 123, 229, 0.08);
    min-height: 220px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.features-highlight .feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 36px rgba(44, 123, 229, 0.12);
}

.features-highlight .feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary-color), #4a9af0);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 0 18px 0;
}

.features-highlight .feature-icon i {
    color: #fff;
    font-size: 1.6rem;
}

.features-highlight .feature-card h3 {
    font-size: 1.25rem;
    margin: 0; /* use row-gap instead of margin-bottom to keep spacing consistent */
    align-self: start;
    grid-column: 2 / 3;
    grid-row: 1;
}

.features-highlight .feature-card p {
    color: var(--dark-color);
    margin: 0;
    align-self: start;
    grid-column: 2 / 3;
    grid-row: 2; /* force paragraph to second row so first lines align across cards */
}

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

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

/* 轻量装饰：渐变线、柔和光斑、图标微动与标题下划线 */
.features-highlight .feature-card {
    position: relative;
    overflow: hidden;
}

.features-highlight .feature-card::before {
    content: "";
    position: absolute;
    right: -40px;
    top: -40px;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle at center, rgba(44, 123, 229, 0.18), rgba(44, 123, 229, 0) 60%);
    pointer-events: none;
}

.features-highlight .feature-card::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, rgba(44, 123, 229, 0.4), rgba(74, 154, 240, 0.2));
}

.features-highlight .feature-icon {
    box-shadow: 0 8px 18px rgba(44, 123, 229, 0.25), inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.features-highlight .feature-card:hover .feature-icon {
    transform: translateY(-2px);
}

.features-highlight .feature-card h3::after {
    content: "";
    display: block;
    width: 36px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), rgba(74, 154, 240, 0.6));
    border-radius: 2px;
    margin-top: 8px;
    opacity: 0.7;
}

@media (max-width: 768px) {
    .features-highlight .feature-card::before {
        width: 120px;
        height: 120px;
        right: -30px;
        top: -30px;
    }
    .features-highlight .feature-card::after {
        height: 2px;
    }
}

/* 让三大特点卡片更饱满：图标在左，文字在右 */
.features-highlight .feature-card {
    display: grid;
    grid-template-columns: 96px 1fr;
    grid-template-rows: 28px auto; /* fixed heading row to align paragraph start */
    column-gap: 18px;
    row-gap: 10px;
    align-items: start; /* top-align heading+paragraph to keep three cards consistent */
}

.features-highlight .feature-icon {
    margin: 0;
    grid-column: 1 / 2;
    grid-row: 1 / span 2;
    align-self: center;
}

.features-highlight .feature-card h3,
.features-highlight .feature-card p {
    grid-column: 2 / 3;
}

@media (max-width: 768px) {
    .features-highlight .feature-card {
        grid-template-columns: 72px 1fr;
    }
    .features-highlight .feature-icon {
        width: 64px;
        height: 64px;
        border-radius: 14px;
    }
}

/* 角标与右下装饰线条（三大特点卡片） */
.features-highlight .feature-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 10px;
    font-size: 12px;
    line-height: 1;
    color: #fff;
    border-radius: 999px;
    letter-spacing: 0.5px;
    box-shadow: 0 6px 14px rgba(0,0,0,0.08);
}

.features-highlight .badge-pro { background: linear-gradient(135deg, #ff8a00, #ffb14a); }
.features-highlight .badge-auto { background: linear-gradient(135deg, #2c7be5, #4a9af0); }
.features-highlight .badge-flex { background: linear-gradient(135deg, #00b894, #34d399); }

.features-highlight .card-lines {
    position: absolute;
    right: -28px;
    bottom: -14px;
    width: 200px;
    height: 90px;
    background: repeating-linear-gradient(135deg, rgba(44,123,229,0.12) 0 8px, rgba(44,123,229,0.04) 8px 16px);
    border-radius: 12px;
    transform: rotate(8deg);
    pointer-events: none;
}

@media (max-width: 768px) {
    .features-highlight .card-lines {
        width: 140px;
        height: 70px;
        right: -20px;
        bottom: -10px;
    }
}

/* 首页：轮播、图文特性、浮动按钮、售后服务 */
.carousel {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
    margin-bottom: 40px;
}

.carousel-inner {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.carousel-item.active {
    opacity: 1;
}

.carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
    z-index: 10;
}

.carousel-control {
    background-color: rgba(0, 0, 0, 0.3);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.3s;
}

.carousel-control:hover {
    background-color: rgba(0, 0, 0, 0.6);
}

.feature-section {
    padding: 80px 0;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 60px;
}

.feature-item:nth-child(even) {
    flex-direction: row-reverse;
}

.feature-image { flex: 1; }

.feature-image img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.feature-content { flex: 1; padding: 0 40px; }

.feature-content h3 {
    font-size: 1.75rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.feature-content p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.floating-download {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.floating-hotline,
.floating-download-btn {
    background-color: var(--primary-color);
    color: white;
    border-radius: 8px;
    padding: 15px 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    width: 160px;
}

.floating-hotline { margin-bottom: 10px; }

.floating-hotline:hover,
.floating-download-btn:hover {
    background-color: #1a56a7;
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.floating-hotline i,
.floating-download-btn i {
    font-size: 24px;
    margin-bottom: 8px;
    display: block;
}

.floating-hotline span { display: block; color: white; font-size: 13px; margin-bottom: 3px; }
.floating-hotline strong { color: white; font-size: 15px; font-weight: 600; }
.floating-download-btn span { display: block; font-weight: 500; font-size: 16px; }

.service-section {
    padding: 80px 0;
    background-color: var(--light-color);
}

.service-container {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 50px;
}

.service-item {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    flex: 1;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.service-item:hover { transform: translateY(-10px); }

.service-icon {
    width: 80px;
    height: 80px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.service-icon i { font-size: 2rem; color: white; }

.service-item h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.service-item p { color: var(--secondary-color); line-height: 1.8; }

/* 版本选择 */
.version-section {
    padding: 80px 0;
    background-color: #fff;
}

.version-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.version-card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.version-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.version-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.version-card h3 {
    font-size: 1.5rem;
    margin: 20px 20px 8px;
}

.version-desc {
    color: var(--secondary-color);
    margin: 0 20px 10px;
}

.version-features {
    list-style: none;
    padding: 0 20px 10px;
}

.version-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--dark-color);
    padding: 6px 0;
}

.version-features i {
    color: var(--success-color);
}

.version-actions {
    display: flex;
    gap: 12px;
    padding: 0 20px 20px;
}

.version-actions .btn { flex: 1; }

@media (max-width: 576px) {
    .version-image img { height: 160px; }
}

/* 版本图片画廊 */
.version-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 0 20px 20px;
}

.version-gallery img {
    width: 100%;
    height: 90px;
    object-fit: cover;
    border-radius: 6px;
}

@media (max-width: 768px) {
    .version-gallery { grid-template-columns: repeat(3, 1fr); }
    .version-gallery img { height: 70px; }
}

/* 放大展示（顺序排列） */
.version-gallery-large {
    grid-template-columns: 1fr;
}

.version-gallery-large img {
    height: 320px;
}

@media (max-width: 992px) {
    .version-gallery-large img { height: 260px; }
}

@media (max-width: 576px) {
    .version-gallery-large img { height: 200px; }
}

/* 简介三条（分点展示） */
.version-brief {
    margin: 10px 20px 15px;
    color: var(--secondary-color);
}

.version-brief li {
    margin: 6px 0;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.version-brief li i {
    color: var(--success-color);
    margin-top: 4px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content, .hero-image {
        width: 100%;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .feature-item {
        flex-direction: column !important;
    }
    
    .feature-content {
        padding: 20px 0;
    }
    
    .service-container {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .logo {
        text-align: center;
    }
    
    nav ul {
        justify-content: center;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .feature-card {
        padding: 20px;
    }
    
    .floating-download {
        display: none;
    }
    
    .carousel {
        height: 300px;
    }
    
    .testimonial {
        min-width: 100%;
    }
}

@media (max-width: 576px) {
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero {
        padding: 40px 0;
    }
    
    .features-highlight, .testimonials, .download-cta, .service-section, .feature-section {
        padding: 50px 0;
    }
    
    .testimonial {
        min-width: 100%;
    }
    
    .feature-item {
        margin-bottom: 40px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.75rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    /* 移动端下载统计显示 */
    .download-stats {
        margin: 15px 0;
        padding: 15px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 8px;
        text-align: center;
    }
    
    .download-stats h4 {
        color: white;
        margin-bottom: 10px;
        font-size: 1rem;
    }
    
    .download-stats p {
        color: rgba(255, 255, 255, 0.9);
        font-size: 0.9rem;
        margin: 5px 0;
    }
    
    /* 移动端表格优化 */
    .download-table {
        font-size: 0.8rem;
    }
    
    .download-table th,
    .download-table td {
        padding: 8px 4px;
    }
    
    /* 移动端通知样式 */
    .mobile-notification {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        background: var(--primary-color);
        color: white;
        padding: 15px;
        text-align: center;
        z-index: 10000;
        animation: slideDown 0.3s ease-out;
    }
    
    @keyframes slideDown {
        from {
            transform: translateY(-100%);
        }
        to {
            transform: translateY(0);
        }
    }
}