/* ============================================================================= */
/* 前端主样式表 (style.css) */
/* 职责: 存放所有主题共用的通用样式和布局 */
/* ============================================================================= */

/* --- 本地字体 --- */

@font-face {
    font-family: "阿里妈妈东方大楷 Regular";
    src: url("../fonts/alimama/AlimamaDongFangDaKai-Regular.woff2") format("woff2"),
         url("../fonts/alimama/AlimamaDongFangDaKai-Regular.woff") format("woff"),
         url("../fonts/alimama/AlimamaDongFangDaKai-Regular.ttf") format("truetype");
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* --- CSS变量与全局设置 (默认主题) --- */
:root {
    /* 背景色 */
    --bg-color: #f8f9fa;
    --card-bg: rgba(255, 255, 255, 0.5);
    --border-color: rgba(255, 255, 255, 0.2);
    
    /* 文本色 */
    --text-color: #212529;
    
    /* 主色/渐变 */
    --primary-color: #007bff;
    --primary-gradient: linear-gradient(45deg, #ffd700, #ffb700);

    /* 点缀色 */
    --accent-color: #777;
    
    /* 通用 */
    --border-radius: 16px;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --font-main: "阿里妈妈东方大楷 Regular", 'Noto Sans SC', sans-serif;
}
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    line-height: 1.6;
    background-image: url("../img/bg-shape.svg"), linear-gradient(120deg, #fdfbfb 0%, #ebedee 100%);
    background-repeat: no-repeat;
    background-position: bottom;
    background-attachment: fixed;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* --- 站点头部 --- */
.site-header {
    margin-bottom: 3rem;
    position: relative;
    overflow: hidden;
    padding-top: 1rem;
    border-radius: var(--border-radius);
}

.header-main-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 1.5rem;
}

.title-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.site-title-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.site-title-container h1 {
    font-size: 2.5rem;
    margin: 0;
    white-space: nowrap;
    color: var(--text-color);
    text-shadow: 0 2px 6px var(--shadow-color);
}

.title-deco-icon {
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
}

/* --- 时钟卡片 --- */
.clock-card {
    width: 200px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px 0 var(--shadow-color);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 1rem;
    position: relative;
    overflow: hidden;
}

.clock-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 var(--shadow-color), 0 0 15px var(--primary-gradient);
}

.clock-city-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 4rem;
    font-weight: 700;
    color: rgba(13, 126, 201, 0.442);
    z-index: 1;
    pointer-events: none;
    white-space: nowrap;
}

.clock-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.clock-time {
    font-size: 2rem;
    font-weight: 500;
    color: var(--text-color);
    line-height: 1.2;
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.clock-ampm {
    font-size: 1rem;
    font-weight: 300;
    color: var(--accent-color);
}

.clock-date {
    font-size: 0.8rem;
    color: var(--accent-color);
}

/* --- 副标题与控件 --- */
.subtitle-controls-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-top: 1rem;
}

.subtitle-controls-wrapper p {
    font-size: 1.1rem;
    color: var(--accent-color);
    margin: 0;
    white-space: nowrap;
}

.layout-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.layout-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.4rem;
    cursor: pointer;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.layout-btn:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
}

.layout-btn.active {
    background-color: var(--text-color);
    color: #fff;
    border-color: var(--text-color);
}

.layout-btn svg {
    width: 20px;
    height: 20px;
}

/* --- 分类导航 --- */
.category-nav-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 3rem 0 2rem 0;
}

.category-nav {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 1rem;
    -ms-overflow-style: none;
    scrollbar-width: none;
    gap: 0.5rem;
    flex-grow: 1;
}

.category-nav::-webkit-scrollbar {
    display: none;
}

.category-btn {
    flex-shrink: 0;
    padding: 0.6rem 1.5rem;
    border: none;
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: 50px;
    font-size: 1rem;
    font-family: var(--font-main);
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    color: var(--text-color);
}

.category-btn .icon {
    margin-right: 0.5rem;
}

.category-btn:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.category-btn.active {
    background: var(--primary-gradient);
    color: var(--bg-color);
    font-weight: 500;
    box-shadow: 0 4px 15px var(--shadow-color);
}

/* --- 滚动按钮样式 --- */
.nav-scroll-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 1.2rem;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s, opacity 0.3s;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0.6;
}

.nav-scroll-btn:hover {
    background-color: var(--primary-color);
    color: var(--bg-color);
    opacity: 1;
}

.nav-scroll-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* --- 卡片网格与列表布局 --- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.5rem;
    transition: grid-template-columns 0.4s ease;
}

.card-grid.layout-list {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

/* --- 卡片设计 --- */
.card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px 0 var(--shadow-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.layout-grid .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 var(--shadow-color), 0 0 15px var(--primary-gradient);
}

.layout-grid .card-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 40px;
}

.card-icon img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 500;
    margin: 0;
    min-height: 2.6em;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
    color: var(--text-color);
}

.card-description {
    display: none;
}

.card-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.card-link {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.6rem 1.2rem;
    background: var(--primary-gradient);
    color: var(--bg-color);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 500;
    transition: transform 0.3s ease;
    line-height: 1;
    flex-grow: 1;
}

.layout-grid .card:hover .card-link {
    transform: scale(1.05);
}

.layout-list .card {
    display: flex;
    align-items: center;
    padding: 1rem;
}

.layout-list .card-content {
    flex-grow: 1;
    display: flex;
    align-items: center;
    text-align: left;
}

.layout-list .card-icon {
    margin: 0 1rem 0 0;
    flex-shrink: 0;
}

.layout-list .card-title {
    margin: 0;
    flex-grow: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-height: initial;
    justify-content: flex-start;
}

.layout-list .card-actions {
    margin-top: 0;
    margin-left: auto;
    flex-shrink: 0;
}

.layout-list .card-link {
    flex-grow: 0;
}

/* --- 卡片图标备用样式 --- */
.card-icon-fallback {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 500;
    color: #fff;
    margin: 0 auto;
    text-transform: uppercase;
}

.layout-list .card-icon-fallback {
    margin: 0 1rem 0 0;
}

.fallback-color-1 { background-color: #1abc9c; }
.fallback-color-2 { background-color: #3498db; }
.fallback-color-3 { background-color: #9b59b6; }
.fallback-color-4 { background-color: #e74c3c; }
.fallback-color-5 { background-color: #f1c40f; }

/* --- 卡片描述悬浮提示框样式 --- */
.card-tooltip {
    position: fixed;
    background-color: rgba(0, 0, 0, 0.8);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    max-width: 300px;
    z-index: 9999;
    pointer-events: none;
    opacity: 0;
    transform: translateY(0);
    transition: opacity 0.2s ease, transform 0.2s ease;
    white-space: pre-wrap;
}

.card-tooltip.show {
    opacity: 1;
    transform: translateY(-2px);
}

/* --- 特效画布样式 --- */
#special-effects-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* --- 待办功能按钮 --- */
.todo-toggle-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    font-size: 1.2rem;
    opacity: 0.5;
    transition: opacity 0.2s, color 0.2s;
}

.todo-toggle-btn:hover {
    opacity: 1;
}

.todo-toggle-btn.active {
    opacity: 1;
    color: var(--primary-color);
}