/**
 * 用户端基础样式
 * 重置样式 + 布局 + 头部 + 底部
 */

/* ====== 重置样式 ====== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    font-family: 'TTTGB', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: var(--font-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    position: relative;
}

/* ====== 动态背景 ====== */
.dynamic-bg {
    position: fixed;
    top: -50%;
    left: 0;
    width: 100%;
    height: 200%;
    z-index: 0;
    pointer-events: none;
    background: 
        radial-gradient(ellipse 100% 40% at 50% 20%, rgba(255, 77, 106, 0.35), transparent 60%),
        radial-gradient(ellipse 80% 30% at 50% 50%, rgba(37, 244, 238, 0.25), transparent 60%),
        radial-gradient(ellipse 90% 35% at 50% 80%, rgba(255, 77, 106, 0.2), transparent 60%);
    animation: dynamicBgMove 8s ease-in-out infinite alternate;
}

@keyframes dynamicBgMove {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(15%);
    }
}

/* 首页隐藏通用动态背景（使用轮播图提取的颜色） */
body.page-index .dynamic-bg {
    display: none;
}

/* 浅色主题动态背景 - 柔和的粉蓝渐变 */
[data-theme="light"] .dynamic-bg {
    background: 
        radial-gradient(ellipse 100% 50% at 30% 10%, rgba(255, 182, 193, 0.4), transparent 50%),
        radial-gradient(ellipse 80% 40% at 70% 30%, rgba(173, 216, 250, 0.35), transparent 50%),
        radial-gradient(ellipse 90% 45% at 50% 80%, rgba(255, 218, 233, 0.3), transparent 50%);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-color);
}

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

ul, ol {
    list-style: none;
}

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: none;
    background: none;
}

/* ====== 滚动条美化 ====== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-input);
}
::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ====== 容器 ====== */
.container {
    width: 70%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ====== 头部导航 ====== */
.header {
    position: relative;
    width: 100%;
    height: var(--header-height);
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
}

.header-inner {
    position: relative;
    max-width: var(--container-width);
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
}

.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo img {
    height: 32px;
    width: auto;
}

.logo span {
    font-size: var(--font-lg);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--font-sm);
    transition: all var(--transition-fast);
}

.nav-item:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.nav-item.active {
    color: var(--primary-color);
    background: rgba(254, 44, 85, 0.1);
}

/* 头部搜索框 */
.header-search {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    max-width: calc(100% - 600px);
    min-width: 200px;
    z-index: 1;
}

@media (max-width: 1200px) {
    .header-search {
        max-width: calc(100% - 500px);
    }
}

@media (max-width: 1000px) {
    .header-search {
        max-width: calc(100% - 400px);
        width: 300px;
    }
}

@media (max-width: 900px) {
    .header-search {
        position: static;
        transform: none;
        width: 100%;
        max-width: 280px;
        margin: 0 var(--spacing-md);
    }
    
    .header-inner {
        gap: var(--spacing-sm);
    }
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.search-input {
    width: 100%;
    height: 38px;
    padding: 0 45px 0 var(--spacing-md);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: var(--font-sm);
    transition: all var(--transition-fast);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(254, 44, 85, 0.1);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-btn {
    position: absolute;
    right: 4px;
    width: 32px;
    height: 32px;
    background: var(--primary-color);
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-btn:hover {
    background: var(--primary-hover);
}

/* 搜索建议下拉 */
.search-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: var(--spacing-xs);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 300px;
    overflow-y: auto;
    display: none;
    z-index: 1001;
}

.search-suggestions.show {
    display: block;
}

.suggestion-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.suggestion-item:hover {
    background: var(--bg-card-hover);
}

.suggestion-item img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.suggestion-item .info {
    flex: 1;
}

.suggestion-item .name {
    font-size: var(--font-sm);
    color: var(--text-primary);
}

.suggestion-item .name em {
    color: var(--primary-color);
    font-style: normal;
}

.suggestion-item .price {
    font-size: var(--font-sm);
    color: var(--primary-color);
    font-weight: 600;
}

.suggestion-empty {
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .header {
        position: relative;
        height: auto;
        padding: 0 0 var(--spacing-xs) 0;
        margin-bottom: -52px;
        border-bottom: none;
        background: var(--bg-card);
    }
    .header-inner {
        flex-wrap: wrap;
        align-items: center;
        min-height: var(--header-height);
        padding: 0 var(--spacing-md);
    }
    .header-search {
        position: relative !important;
        left: auto !important;
        right: auto !important;
        top: auto !important;
        transform: none !important;
        width: 100% !important;
        max-width: 100% !important;
        min-width: auto !important;
        flex-basis: 100%;
        order: 10;
        padding: var(--spacing-sm) 0;
        background: transparent;
        z-index: 98;
        margin: 0 !important;
        box-sizing: border-box;
    }
    /* 非首页和服务页隐藏搜索框，恢复header布局 */
    body:not(.page-index):not(.page-service) .header-search {
        display: none !important;
    }
    body:not(.page-index):not(.page-service) .header {
        margin-bottom: 0;
        padding-bottom: 0;
    }
    body:not(.page-index):not(.page-service) .main-content {
        padding-top: 0;
    }
    .search-wrapper {
        background: var(--bg-input);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-full);
    }
    .main-content {
        padding-top: 52px;
    }
    .container {
        padding: 0 var(--spacing-md);
        box-sizing: border-box;
        overflow-x: hidden;
    }
    .logo {
        display: flex;
        align-items: center;
        height: 100%;
    }
    .mobile-theme-toggle, .menu-toggle {
        display: flex !important;
        align-items: center;
        justify-content: center;
    }
    .search-wrapper {
        width: 100%;
    }
    .search-input {
        width: 100%;
    }
}

/* 子导航栏 - 跟随页面滚动 */
.sub-nav {
    position: relative;
    width: 100%;
    z-index: 99;
    padding: var(--spacing-md) 0;
    margin: var(--spacing-sm) 0;
}

.sub-nav-inner {
    width: 70%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(to bottom, rgba(var(--bg-card-rgb), 0.5) 0%, var(--bg-card) 70%);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    box-sizing: border-box;
}

.sub-nav-item {
    position: relative;
    padding: var(--spacing-sm) 0;
    font-size: var(--font-base);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.sub-nav-item:hover {
    color: var(--text-primary);
}

.sub-nav-item.active {
    color: var(--text-secondary);
}

.sub-nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

@media (max-width: 1024px) {
    .sub-nav {
        display: none;
    }
}

.header-right-wrap {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.user-trigger:hover {
    opacity: 0.8;
}

.user-trigger span {
    font-size: 14px;
    color: var(--text-primary);
}

.user-trigger i {
    font-size: 12px;
    color: var(--text-muted);
    transition: transform 0.3s ease;
}

.user-dropdown.active .user-trigger i {
    transform: rotate(180deg);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    font-size: var(--font-xl);
    color: var(--text-primary);
    cursor: pointer;
}

/* 移动端主题切换按钮 */
.mobile-theme-toggle {
    display: none;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-primary);
    cursor: pointer;
    border-radius: 50%;
    background: var(--bg-input);
    margin-left: auto;
    margin-right: 12px;
}
.mobile-theme-toggle .icon-sun { display: block; color: #FAAD14; }
.mobile-theme-toggle .icon-moon { display: none; color: #1890FF; }
[data-theme="dark"] .mobile-theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .mobile-theme-toggle .icon-moon { display: block; }

/* ====== 主内容区 ====== */
.main-content {
    position: relative;
    z-index: 10;
    min-height: calc(100vh - var(--header-height));
    padding-bottom: var(--tab-bar-height);
}

/* ====== 底部 ====== */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0;
    display: none; /* 移动端隐藏 */
}

.footer-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: var(--font-sm);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.copyright {
    color: var(--text-muted);
    font-size: var(--font-xs);
}

/* ====== 移动端底部Tab栏 ====== */
.tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--tab-bar-height);
    background: var(--bg-header);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: 1000;
}

.tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: var(--font-xs);
    transition: color var(--transition-fast);
}

.tab-item i {
    font-size: var(--font-xl);
}

.tab-item.active {
    color: var(--primary-color);
}

.tab-item:hover {
    color: var(--primary-color);
}

/* ====== 响应式 ====== */
@media (min-width: 769px) {
    .tab-bar {
        display: none;
    }
    .footer {
        display: block;
    }
    .main-content {
        padding-bottom: 0;
    }
}

@media (max-width: 768px) {
    .nav-menu,
    .header-right {
        display: none;
    }
    .menu-toggle,
    .mobile-theme-toggle {
        display: flex;
    }
    .container {
        width: 100%;
        padding: 0 var(--spacing-md);
    }
    .footer {
        display: none;
    }
}

/* 平板适配 */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        width: 96%;
    }
}