/* ====== 基础变量与重置 ====== */
:root {
    /* 主色调 - 科技感深色系 (保持不变) */
    --color-bg-dark: #0a0e17;
    --color-bg-card: #121828;
    --color-bg-card-light: #1a1f35;
    --color-border: #2a3452;
    
    /* ############### 【顶层权威】品牌主色调 - 深空科技蓝 ############### */
    --color-brand-deep: #0F1B3D;        /* 深空蓝 - 权威基石 */
    --color-brand-light: #00E5FF;       /* 亮青蓝 - 科技高光 */
    
    /* ############### 【中层核心】四功能色 - 强化信号感 ############### */
    --color-card-red: #FF4757;          /* 红色 - 免费领取大流量卡 (热销/紧急) */
    --color-card-yellow: #FFA502;       /* 黄色 - 优选商城 (价值/财富) */
    --color-card-blue: #007AFF;         /* 蓝色 - 自营通道 (专业工具/提纯为鲜亮科技蓝) */
    --color-card-green: #07C160;        /* 绿色 - 微信客服 (沟通/信任) */
    
    /* 文字颜色 (保持不变) */
    --color-text-primary: #f0f4ff;
    --color-text-secondary: #a0a8c9;
    --color-text-muted: #6b7292;
    
    /* 设计变量 (保持不变) */
    --radius-card: 12px;
    --radius-small: 6px;
    --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.2);
    --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    background-color: var(--color-bg-dark);
    color: var(--color-text-primary);
    overflow-x: hidden;
}

/* ====== 【底层动态】背景纹理 (微调以呼应新品牌色) ====== */
.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(15, 27, 61, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 229, 255, 0.05) 0%, transparent 50%);
}

/* ====== 主容器 (保持不变) ====== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 16px;
    position: relative;
    z-index: 1;
}

/* ====== 【顶层权威】品牌区域 - 深空科技蓝渐变 ====== */
.brand-section {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

.brand-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.brand-icon {
    width: 56px;
    height: 56px;
    /* 深空蓝到亮青蓝的科技渐变 */
    background: linear-gradient(135deg, var(--color-brand-deep), var(--color-brand-light));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: white;
    /* 微光阴影 */
    box-shadow: 0 8px 25px rgba(0, 229, 255, 0.25), 
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.brand-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 8px;
    /* 使用品牌渐变 */
    background: linear-gradient(90deg, var(--color-text-primary) 20%, var(--color-brand-light) 80%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.5px;
}

.brand-subtitle {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-weight: 400;
}

/* ====== 欢迎使用区域 (保持不变) ====== */
.welcome-section {
    background-color: var(--color-bg-card);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    margin-bottom: 30px;
    overflow: hidden;
}

.welcome-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--color-border);
    background-color: rgba(10, 14, 23, 0.5);
}

.welcome-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.welcome-title::before {
    content: '👋';
    font-size: 1.2rem;
}

.welcome-content {
    padding: 24px;
}

.welcome-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.welcome-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    border-radius: var(--radius-small);
    /* 使用品牌深色作为欢迎区底色 */
    background-color: rgba(15, 27, 61, 0.08);
    border: 1px solid rgba(15, 27, 61, 0.15);
}

.welcome-item-single {
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 24px;
}

.welcome-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    /* 使用品牌色渐变 */
    background: linear-gradient(135deg, var(--color-brand-deep), rgba(0, 229, 255, 0.7));
    color: white;
}

.welcome-item-single .welcome-icon {
    margin-bottom: 16px;
}

.welcome-text {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.welcome-lines {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
}

.welcome-line {
    width: 100%;
    text-align: center;
}

.welcome-message {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-primary);
    text-align: center;
    width: 100%;
}

/* ====== 【中层过渡】每日一语区域 - 针对性设计 ====== */
.quote-section {
    background-color: var(--color-bg-card);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    margin-bottom: 30px;
    overflow: hidden;
}

.quote-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--color-border);
    background-color: rgba(10, 14, 23, 0.5);
}

.quote-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.quote-title::before {
    content: '💭';
    font-size: 1.2rem;
}

.quote-content {
    padding: 24px;
}

.quote-box {
    padding: 24px;
    background-color: rgba(15, 27, 61, 0.1); /* 深空蓝底色 */
    border-radius: var(--radius-small);
    border: 1px solid rgba(0, 229, 255, 0.2); /* 亮青蓝边框 */
    position: relative;
    overflow: hidden;
}

/* 左上角微光装饰 */
.quote-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle at top left, 
            rgba(0, 229, 255, 0.2) 0%, 
            transparent 70%);
    z-index: 1;
}

#hitokoto {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    font-style: italic;
    position: relative;
    z-index: 2;
}

.quote-author {
    text-align: right;
    color: var(--color-brand-light); /* 使用品牌亮色 */
    font-size: 0.85rem;
    font-weight: 500;
    position: relative;
    z-index: 2;
}

/* ====== 【中层核心】核心功能区域 - 应用优化后的四原色 ====== */
.functions-section {
    background-color: var(--color-bg-card);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    margin-bottom: 30px;
    overflow: hidden;
}

.functions-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--color-border);
    background-color: rgba(10, 14, 23, 0.5);
}

.functions-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.functions-title::before {
    content: '🚀';
    font-size: 1.2rem;
}

.functions-content {
    padding: 24px;
}

.functions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.function-card {
    display: block;
    height: 70px;
    border-radius: var(--radius-small);
    border: 1px solid var(--color-border);
    text-decoration: none;
    transition: var(--transition);
    background-color: var(--color-bg-card);
    position: relative;
    overflow: hidden;
    padding: 0;
}

.function-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    transition: var(--transition);
}

.function-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    background-color: var(--color-bg-card-light);
}

.function-card:hover::before {
    width: 6px;
}

/* 1. 免费领取大流量卡 - 红色 (保持不变) */
.card-phone {
    border-color: rgba(255, 71, 87, 0.3);
    background-color: rgba(255, 71, 87, 0.05);
}
.card-phone::before {
    background: var(--color-card-red);
}
.card-phone .function-icon {
    background: linear-gradient(135deg, var(--color-card-red), rgba(255, 71, 87, 0.8));
}

/* 2. 优选商城 - 黄色 (保持不变) */
.card-shop {
    border-color: rgba(255, 165, 2, 0.3);
    background-color: rgba(255, 165, 2, 0.05);
}
.card-shop::before {
    background: var(--color-card-yellow);
}
.card-shop .function-icon {
    background: linear-gradient(135deg, var(--color-card-yellow), rgba(255, 165, 2, 0.8));
}

/* 3. 自营通道 - 蓝色 (优化为鲜亮科技蓝) */
.card-recharge {
    border-color: rgba(0, 122, 255, 0.3);
    background-color: rgba(0, 122, 255, 0.05);
}
.card-recharge::before {
    background: var(--color-card-blue); /* #007AFF */
}
.card-recharge .function-icon {
    background: linear-gradient(135deg, var(--color-card-blue), rgba(0, 122, 255, 0.8));
}

/* 4. 微信客服 - 绿色 (保持不变) */
.wechat-card {
    cursor: pointer;
    border-color: rgba(7, 193, 96, 0.3);
    background-color: rgba(7, 193, 96, 0.05);
}
.wechat-card:hover {
    border-color: var(--color-card-green);
    background-color: rgba(7, 193, 96, 0.1);
}
.wechat-card::before {
    background: var(--color-card-green);
}
.wechat-card .function-icon {
    background: linear-gradient(135deg, var(--color-card-green), rgba(7, 193, 96, 0.8));
}

.function-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: white;
    z-index: 2;
}

.function-name {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    text-align: center;
    box-sizing: border-box;
    padding: 0 60px 0 60px;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.card-phone .function-name {
    letter-spacing: 0.04em;
}
.card-shop .function-name,
.card-recharge .function-name {
    letter-spacing: 0.10em;
}
.wechat-card .function-name {
    letter-spacing: 0.08em;
}

/* ====== 【底层动态】运行时间区域 - 炫彩效果保持不变 ====== */
.runtime-section {
    margin-bottom: 40px;
}

.runtime-display {
    padding: 24px;
    background-color: var(--color-bg-card);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.runtime-display::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        #ff0000, #ff9900, #ffff00, #00ff00, 
        #00ffff, #0000ff, #9900ff, #ff0000);
    background-size: 200% 100%;
    animation: rainbow-slide 4s linear infinite;
}

@keyframes rainbow-slide {
    0% { background-position: 0% 0%; }
    100% { background-position: 200% 0%; }
}

.runtime-label {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    font-weight: 500;
}

.runtime-numbers {
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 1.8rem;
    font-weight: 800;
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 4px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.runtime-digit {
    background: linear-gradient(90deg, 
        #ff0000, #ff9900, #ffff00, #00ff00, 
        #00ffff, #0000ff, #9900ff, #ff0000);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    background-size: 200% 100%;
    animation: rainbow-shift 4s linear infinite;
}

@keyframes rainbow-shift {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.runtime-unit {
    color: var(--color-text-primary);
    font-size: 1.4rem;
    font-weight: 600;
    margin-left: 2px;
}

/* ====== 底部区域 (保持不变) ====== */
.footer {
    padding: 30px 0;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

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

.support-text {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.support-link {
    color: var(--color-brand-light); /* 使用品牌亮色作为链接色 */
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.support-link:hover {
    color: var(--color-text-primary);
}

.copyright {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-align: center;
    line-height: 1.5;
}

/* ====== 提示消息 (保持不变) ====== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 14px 20px;
    background-color: rgba(18, 24, 40, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-small);
    border: 1px solid rgba(0, 122, 255, 0.3); /* 使用新蓝色 */
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    color: var(--color-text-primary);
    font-weight: 500;
    transform: translateX(100%);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    max-width: 300px;
    word-break: break-word;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.success {
    border-color: rgba(7, 193, 96, 0.4);
    background-color: rgba(18, 30, 24, 0.95);
}

.toast.error {
    border-color: rgba(255, 71, 87, 0.4);
    background-color: rgba(40, 18, 24, 0.95);
}

.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(0, 122, 255, 0.1); /* 使用新蓝色 */
    border-radius: 50%;
    border-top-color: var(--color-card-blue); /* 使用新蓝色 */
    animation: spin 1s ease-in-out infinite;
    vertical-align: middle;
    margin-right: 8px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ====== 响应式设计 (保持不变) ====== */
@media (max-width: 1024px) {
    .container {
        padding: 16px 12px;
    }
    .brand-title {
        font-size: 1.8rem;
    }
    .functions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .runtime-numbers {
        font-size: 1.5rem;
    }
    .function-icon {
        left: 16px;
        width: 32px;
        height: 32px;
        font-size: 16px;
    }
    .function-name {
        padding: 0 50px 0 50px;
        font-size: 1rem;
    }
    .card-phone .function-name {
        letter-spacing: 0.03em;
    }
    .card-shop .function-name,
    .card-recharge .function-name {
        letter-spacing: 0.08em;
    }
    .wechat-card .function-name {
        letter-spacing: 0.06em;
    }
}

@media (max-width: 768px) {
    .brand-section {
        margin-bottom: 24px;
        padding: 16px 0;
    }
    .brand-title {
        font-size: 1.6rem;
    }
    .brand-icon {
        width: 48px;
        height: 48px;
        font-size: 22px;
    }
    .welcome-header,
    .quote-header,
    .functions-header {
        padding: 16px 20px;
    }
    .welcome-content,
    .quote-content,
    .functions-content {
        padding: 20px;
    }
    .welcome-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .welcome-item {
        padding: 14px;
    }
    .functions-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .function-card {
        height: 64px;
    }
    .function-icon {
        left: 16px;
        width: 30px;
        height: 30px;
        font-size: 15px;
    }
    .function-name {
        padding: 0 46px 0 46px;
        font-size: 1rem;
    }
    .card-phone .function-name {
        letter-spacing: 0.02em;
    }
    .card-shop .function-name,
    .card-recharge .function-name {
        letter-spacing: 0.06em;
    }
    .wechat-card .function-name {
        letter-spacing: 0.04em;
    }
    .runtime-display {
        padding: 20px 16px;
    }
    .runtime-numbers {
        font-size: 1.3rem;
    }
    .runtime-unit {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .brand-title {
        font-size: 1.4rem;
    }
    .brand-subtitle {
        font-size: 0.9rem;
    }
    .welcome-title,
    .quote-title,
    .functions-title {
        font-size: 1.1rem;
    }
    .function-card {
        height: 60px;
    }
    .function-icon {
        left: 14px;
        width: 28px;
        height: 28px;
        font-size: 14px;
    }
    .function-name {
        padding: 0 42px 0 42px;
        font-size: 0.95rem;
    }
    .card-phone .function-name {
        letter-spacing: 0.01em;
    }
    .card-shop .function-name,
    .card-recharge .function-name {
        letter-spacing: 0.04em;
    }
    .wechat-card .function-name {
        letter-spacing: 0.03em;
    }
    .runtime-display {
        padding: 16px;
    }
    .runtime-numbers {
        font-size: 1.1rem;
    }
    .runtime-unit {
        font-size: 1rem;
    }
}