/* 下载页面样式 - 集成到主应用 */

#download-page {
    overflow-y: auto;
}

#theme-toggle-download.theme-toggle-btn {
    position: fixed !important;
    top: 16px !important;
    right: 16px !important;
    width: 28px;
    height: 28px;
    padding: 0;
    border: none;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    color: var(--theme-toggle-color, var(--text-primary, #111827));
    z-index: 10001;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

#theme-toggle-download.theme-toggle-btn:hover {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
    color: var(--theme-toggle-color-hover, var(--binance-yellow, #F0B90B));
    transform: scale(1.08);
}

#lang-toggle-download.lang-toggle-btn {
    position: fixed !important;
    top: 16px !important;
    right: 60px !important;
    height: 28px;
    min-width: 28px;
    padding: 0 6px;
    border: none;
    background: transparent;
    box-shadow: none;
    color: var(--theme-toggle-color, var(--text-primary, #111827));
    z-index: 10001;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
}

#lang-toggle-download.lang-toggle-btn:hover {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
    color: var(--theme-toggle-color-hover, var(--binance-yellow, #F0B90B));
    transform: scale(1.08);
}

#theme-toggle-download.theme-toggle-btn .theme-icon-sun-download {
    display: none;
}

[data-theme="dark"] #theme-toggle-download.theme-toggle-btn .theme-icon-moon-download {
    display: none;
}

[data-theme="dark"] #theme-toggle-download.theme-toggle-btn .theme-icon-sun-download {
    display: block;
}

/* 背景效果 */
.download-bg-effects {
    position: fixed;
    inset: 0;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.download-glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.download-glow-orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(240, 185, 11, 0.4) 0%, transparent 70%);
    top: -150px;
    left: -100px;
    animation: downloadFloat 8s ease-in-out infinite;
}

.download-glow-orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.3) 0%, transparent 70%);
    bottom: -100px;
    right: -50px;
    animation: downloadFloat 10s ease-in-out infinite 2s;
}

.download-grid-bg {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(240, 185, 11, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(240, 185, 11, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
}

@keyframes downloadFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* 主内容容器 */
.download-main {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    padding: 40px 20px 60px;
    max-width: 1400px;
    margin: 0 auto;
}

/* 顶部导航 */
.download-top-bar {
    max-width: 1200px;
    margin: 0 auto 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card, #fff);
    padding: 16px 24px;
    border-radius: 16px;
    border: 1px solid var(--border-color, #E5E7EB);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.download-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary, #111827);
    font-size: 18px;
    font-weight: 700;
}

.download-back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    text-decoration: none;
    font-size: 13px;
    padding: 10px 18px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--color-primary, #F0B90B), var(--color-primary-hover, #FCD535));
    font-weight: 600;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

.download-back-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(240, 185, 11, 0.4);
}

@media (prefers-reduced-motion: reduce) {
    #theme-toggle-download.theme-toggle-btn:hover,
    #lang-toggle-download.lang-toggle-btn:hover {
        transform: none;
    }
}

/* 英雄区域 */
.download-hero-section {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
    animation: downloadFadeInUp 0.8s ease-out;
}

.download-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(240, 185, 11, 0.15), rgba(240, 185, 11, 0.05));
    border: 1px solid rgba(240, 185, 11, 0.3);
    border-radius: 100px;
    font-size: 13px;
    color: #B8860B;
    font-weight: 600;
    margin-bottom: 24px;
}

.download-hero-section h1 {
    font-size: 48px;
    font-weight: 800;
    color: var(--text-primary, #111827);
    margin-bottom: 16px;
    line-height: 1.2;
}

.download-hero-section h1 span {
    background: linear-gradient(135deg, var(--color-primary, #F0B90B), #D4A00A);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.download-hero-section p {
    font-size: 18px;
    color: var(--text-secondary, #4B5563);
    line-height: 1.6;
}

/* 下载卡片网格 */
.download-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
    padding: 40px 20px 20px;
}

.download-card {
    background: var(--bg-card, #fff);
    border: 1px solid var(--border-color, #E5E7EB);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: visible;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.download-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary, #F0B90B);
    border-top: 3px solid var(--color-primary, #F0B90B);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.12), 0 0 50px rgba(240, 185, 11, 0.15);
}

.download-card:nth-child(1) { animation: downloadFadeInUp 0.8s ease-out 0.1s both; }
.download-card:nth-child(2) { animation: downloadFadeInUp 0.8s ease-out 0.2s both; }
.download-card:nth-child(3) { animation: downloadFadeInUp 0.8s ease-out 0.3s both; }
.download-card:nth-child(4) { animation: downloadFadeInUp 0.8s ease-out 0.4s both; }

/* Logo骑在卡片左上角 */
.download-card-logo {
    position: absolute;
    left: 0px;
    top: -35px;
    width: 80px;
    height: 80px;
    z-index: 10;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.15));
}

.download-card-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.download-card:hover .download-card-logo {
    transform: scale(1.1);
    filter: drop-shadow(0 8px 20px rgba(0,0,0,0.2));
}

.download-card-header {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 24px;
}

.download-card-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary, #111827);
}

.download-card-subtitle {
    font-size: 14px;
    color: var(--text-tertiary, #9CA3AF);
}

.download-card-version {
    display: inline-block;
    padding: 4px 10px;
    background: var(--bg-tertiary, #F9FAFB);
    border: 1px solid var(--border-color, #E5E7EB);
    border-radius: 6px;
    font-size: 12px;
    color: var(--text-secondary, #4B5563);
    margin-top: 8px;
}

.download-card-desc {
    color: var(--text-secondary, #4B5563);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 24px;
}

.download-feature-list {
    list-style: none;
    margin-bottom: 28px;
    padding: 0;
}

.download-feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-size: 14px;
    color: var(--text-secondary, #4B5563);
    border-bottom: 1px solid var(--border-color, #E5E7EB);
}

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

.download-check {
    width: 20px;
    height: 20px;
    background: rgba(240, 185, 11, 0.6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
}

.download-btn-primary {
    background: transparent;
    color: var(--color-primary, #F0B90B);
    border: 2px dashed var(--color-primary, #F0B90B);
    position: relative;
    overflow: hidden;
}

.download-btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary, #F0B90B), var(--color-primary-hover, #FCD535));
    opacity: 0;
    transition: all 0.3s;
}

.download-btn-primary span {
    position: relative;
    z-index: 1;
    transition: color 0.3s;
}

.download-btn-primary:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 30px rgba(240, 185, 11, 0.5);
    border-style: solid;
    color: var(--text-primary, #111827);
}

.download-btn-primary:hover::before {
    opacity: 1;
}

.download-btn-secondary {
    background: transparent;
    color: var(--color-primary, #F0B90B);
    border: 2px dashed var(--color-primary, #F0B90B);
    position: relative;
    overflow: hidden;
}

.download-btn-secondary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary, #F0B90B), var(--color-primary-hover, #FCD535));
    opacity: 0;
    transition: all 0.3s;
}

.download-btn-secondary span {
    position: relative;
    z-index: 1;
    transition: color 0.3s;
}

.download-btn-secondary:hover {
    border-style: solid;
    color: var(--text-primary, #111827);
}

.download-btn-secondary:hover::before {
    opacity: 1;
}

.download-btn-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-tertiary, #9CA3AF);
}

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

/* 响应式 */
@media (max-width: 768px) {
    .download-hero-section h1 {
        font-size: 32px;
    }
    .download-hero-section p {
        font-size: 15px;
    }
    .download-cards-grid {
        grid-template-columns: 1fr;
    }
    .download-top-bar {
        flex-direction: column;
        gap: 16px;
        padding: 16px;
    }
}