/* 引入优质 Google 字体 */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700&display=swap');

/* 容器基础样式 */
.dcn-container {
    max-width: 550px;
    margin: 40px auto;
    padding: 35px 30px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04), 
                0 1px 8px rgba(0, 0, 0, 0.02);
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    transition: all 0.3s ease;
}

/* 适配深色主题的容器 */
@media (prefers-color-scheme: dark) {
    .dcn-container {
        background: rgba(30, 30, 34, 0.9);
        border: 1px solid rgba(255, 255, 255, 0.08);
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    }
}

/* 日期选择器样式 */
.dcn-date-picker {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
}

.dcn-date-picker label {
    font-size: 15px;
    font-weight: 600;
    color: #64748b;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

@media (prefers-color-scheme: dark) {
    .dcn-date-picker label {
        color: #94a3b8;
    }
}

.dcn-date-picker input[type="date"] {
    width: 100%;
    max-width: 280px;
    padding: 12px 20px;
    border: 1.5px solid #e2e8f0;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 500;
    color: #1e293b;
    background-color: #f8fafc;
    outline: none;
    text-align: center;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

@media (prefers-color-scheme: dark) {
    .dcn-date-picker input[type="date"] {
        border-color: #334155;
        color: #f1f5f9;
        background-color: #0f172a;
        box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
    }
}

.dcn-date-picker input[type="date"]:focus {
    border-color: #4f46e5;
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15), 
                inset 0 2px 4px rgba(0, 0, 0, 0.01);
}

@media (prefers-color-scheme: dark) {
    .dcn-date-picker input[type="date"]:focus {
        border-color: #6366f1;
        background-color: #1e293b;
        box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
    }
}

/* 列表容器 */
.dcn-topics-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* 按钮通用样式 */
.dcn-topic-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    color: #475569;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    text-align: left;
    text-decoration: none !important;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.01);
}

@media (prefers-color-scheme: dark) {
    .dcn-topic-btn {
        background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
        color: #cbd5e1;
        border-color: #334155;
    }
}

.dcn-topic-btn::after {
    content: "→";
    font-size: 18px;
    color: #94a3b8;
    transition: transform 0.3s ease, color 0.3s ease;
}

/* 单分类专属大按钮高亮 */
.dcn-single-btn {
    background: linear-gradient(135deg, #4f46e5 0%, #3730a3 100%);
    color: #ffffff !important;
    border: none;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
    justify-content: center;
    gap: 10px;
}

.dcn-single-btn::after {
    content: "✨";
    font-size: 16px;
    color: inherit;
    order: -1; /* 将星号置于文字前方 */
    transition: transform 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    .dcn-single-btn {
        background: linear-gradient(135deg, #6366f1 0%, #4338ca 100%);
        box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
    }
}

/* 悬停与激活交互特效 */
.dcn-topic-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
    border-color: #cbd5e1;
}

@media (prefers-color-scheme: dark) {
    .dcn-topic-btn:hover {
        border-color: #475569;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    }
}

.dcn-topic-btn:hover::after {
    transform: translateX(4px);
    color: #475569;
}

@media (prefers-color-scheme: dark) {
    .dcn-topic-btn:hover::after {
        color: #f1f5f9;
    }
}

/* 单按钮悬停高亮 */
.dcn-single-btn:hover {
    background: linear-gradient(135deg, #4338ca 0%, #312e81 100%);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.45);
    transform: translateY(-2px);
}

@media (prefers-color-scheme: dark) {
    .dcn-single-btn:hover {
        background: linear-gradient(135deg, #4f46e5 0%, #3730a3 100%);
        box-shadow: 0 8px 30px rgba(99, 102, 241, 0.55);
    }
}

.dcn-single-btn:hover::after {
    transform: scale(1.2) rotate(10deg);
}

/* 点击加载反馈态 */
.dcn-topic-btn.dcn-clicked {
    opacity: 0.6;
    transform: scale(0.98);
    pointer-events: none;
}