/* 配色变量定义 - 核心配色体系 */
:root {
    --warm-white: #f9f7f2; /* 暖白/米白 - 背景主色 */
    --fog-green: #8a9a95; /* 低饱和灰绿/雾绿 - 辅助主色 */
    --fog-green-deep: #6c7c78; /* 雾绿加深 - 文字/图标背景 */
    --amber: #e2b066; /* 温和琥珀色 - 强调色 */
    --amber-hover: #f0c078; /* 琥珀色hover */
    --warm-gray-orange: #d4a068; /* 暖灰橙 - 辅助强调 */
    --text-main: #555555; /* 主文字色 */
    --text-secondary: #777777; /* 次要文字色 */
    --shadow-light: 0 2px 8px rgba(0,0,0,0.03); /* 轻阴影 */
    --shadow-normal: 0 2px 5px rgba(0,0,0,0.08); /* 常规阴影 */
}


/* 全局重置与基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

body {
    font-size: 14px;
    color: var(--text-main);
    background-color: var(--warm-white); /* 暖白背景 */
    line-height: 1.5;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* 容器样式 */
.container {
    width: 100%;
    padding: 0 15px;
    margin: 0 auto;
}

/* 顶部导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 50px;
    background-color: var(--warm-white); /* 暖白导航背景 */
    color: var(--fog-green-deep); /* 雾绿文字 */
    z-index: 999;
    box-shadow: var(--shadow-normal);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 18px;
    font-weight: bold;
    color: var(--fog-green-deep);
    text-decoration: none;
}

.logo-img {
    width: 32px;
    height: 32px;
    margin-right: 8px;
    display: block;
}

.logo-text {
    display: block;
    white-space: nowrap;
}

/* 菜单按钮样式 */
.menu-btn {
    width: 30px;
    height: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    cursor: pointer;
    z-index: 1001;
}

.menu-btn span {
    width: 25px;
    height: 2px;
    background-color: var(--fog-green); /* 雾绿菜单线条 */
    transition: all 0.3s ease;
}

/* 菜单按钮点击后的动画 */
.menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* 侧边菜单样式 */
.side-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--warm-white);
    box-shadow: -2px 0 10px rgba(0,0,0,0.1);
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    padding-top: 60px;
    overflow-y: auto;
}

.side-menu.show {
    transform: translateX(0);
}

/* 菜单遮罩层 */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.3);
    z-index: 999;
    display: none;
}

.menu-overlay.show {
    display: block;
}

/* 主菜单样式 */
.main-menu {
    padding: 0 15px;
}

.main-menu > li {
    border-bottom: 1px solid #eee;
}

/* 我的账户菜单特殊样式 */
.main-menu > li.user-item {
    border-bottom: 2px solid #eee;
    padding-bottom: 5px;
}

.main-menu > li > a {
    display: flex;
    align-items: center;
    padding: 15px 0;
    font-size: 16px;
    color: var(--fog-green-deep);
    font-weight: 500;
    justify-content: space-between;
}



/* 登录按钮特殊样式 */
.login-btn {
    color: var(--fog-green-deep) !important;
}

/* 占位符箭头样式 - 不可见但保持布局一致 */
.menu-arrow-placeholder {
    width: 20px; /* 与实际箭头宽度一致 */
    opacity: 0;
}

/* 菜单图标容器 */
.menu-icon {
    width: 20px;
    height: 20px;
    margin-right: 10px;
    flex-shrink: 0;
}

/* 下拉箭头 */
.menu-arrow {
    width: 12px;
    height: 12px;
    border: solid var(--fog-green);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    transition: transform 0.3s ease;
}

.menu-arrow.active {
    transform: rotate(-135deg);
}

/* 子菜单样式 */
.sub-menu {
    padding-left: 30px;
    display: none;
}

.sub-menu.show {
    display: block;
}

.sub-menu li {
    padding: 10px 0;
}

.sub-menu li a {
    color: var(--text-secondary);
    font-size: 14px;
    transition: color 0.2s;
}

.sub-menu li a:hover {
    color: var(--amber);
}

/* 轮播图样式 */
.carousel {
    padding: 0;
    background-color: var(--warm-white);
    margin-top: 50px;
}

.carousel-container {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    border-radius: 0;
    overflow: hidden;
    box-shadow: var(--shadow-normal);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}

.carousel-slide {
    min-width: 100%;
    position: relative;
    display: none;
}

.carousel-slide.active {
    display: block;
}

.carousel-slide img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

.carousel-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: white;
    padding: 30px;
    text-align: center;
}

.carousel-content h1 {
    font-size: 24px;
    margin-bottom: 10px;
    font-weight: bold;
    line-height: 1.3;
}

.carousel-content h3 {
    font-size: 18px;
    margin-bottom: 8px;
    font-weight: bold;
}

.carousel-content p {
    font-size: 15px;
    margin: 0 0 15px 0;
    opacity: 0.95;
}

.carousel-content .btn {
    display: inline-block;
    padding: 10px 25px;
    background-color: var(--amber);
    color: var(--warm-white);
    border-radius: 25px;
    font-weight: bold;
    font-size: 14px;
    text-decoration: none;
    transition: background-color 0.3s;
}

.carousel-content .btn:hover {
    background-color: var(--amber-hover);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.8);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    color: var(--fog-green-deep);
    transition: all 0.3s;
    z-index: 10;
}

.carousel-btn:hover {
    background: rgba(255,255,255,1);
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn-prev {
    left: 15px;
}

.carousel-btn-next {
    right: 15px;
}

.carousel-indicators {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.indicator.active {
    background: var(--amber);
}




/* 通知公告样式 */
.announcement {
    padding: 30px 0;
    background-color: white;
}

.announcement-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.announcement-header h2 {
    font-size: 20px;
    color: var(--fog-green-deep);
    margin: 0;
    font-weight: bold;
}

.announcement-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.announcement-item {
    display: flex;
    align-items: flex-start;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.announcement-date {
    margin-right: 15px;
    min-width: 80px;
    text-align: center;
    font-size: 13px;
    color: var(--text-main);
    white-space: nowrap;
}

.announcement-content {
    flex: 1;
}

.announcement-content h4 {
    margin: 0 0 5px 0;
    font-size: 14px;
    font-weight: normal;
}

.announcement-content h4 a {
    color: var(--text-main);
    text-decoration: none;
}

.announcement-content p {
    margin: 0;
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}