/**
 * 两山·茶管家 PC端公共样式
 * 茶叶认购项目 - PC网站通用样式表
 */

/* ==================== 全局重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 品牌主色 - 茶绿色系 */
    --primary-color: #2E7D32;
    --primary-light: #388E3C;
    --primary-dark: #1B5E20;
    --primary-gradient: linear-gradient(135deg, #2E7D32 0%, #388E3C 100%);
    
    /* 辅助色 */
    --secondary-color: #4CAF50;
    --accent-color: #8BC34A;
    --warning-color: #FF9800;
    --danger-color: #F44336;
    --success-color: #4CAF50;
    --info-color: #2196F3;
    
    /* 中性色 */
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-disabled: #BDBDBD;
    --border-color: #E0E0E0;
    --divider-color: #EEEEEE;
    --background-gray: #FAFAFA;
    --background-light: #F5F5F5;
    
    /* 背景渐变 */
    --bg-gradient-light: linear-gradient(135deg, #f0f8f0 0%, #e8f5e8 100%);
    --bg-gradient-white: linear-gradient(to bottom, #ffffff 0%, #f8fdf8 100%);
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-xl: 0 12px 32px rgba(0,0,0,0.15);
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* 间距 */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* 字体大小 */
    --font-xs: 12px;
    --font-sm: 14px;
    --font-md: 16px;
    --font-lg: 18px;
    --font-xl: 20px;
    --font-2xl: 24px;
    --font-3xl: 32px;
    --font-4xl: 40px;
    
    /* 过渡动画 */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;

    /* 高级渐变 */
    --gradient-tea-subtle: linear-gradient(135deg, rgba(46,125,50,0.05) 0%, rgba(56,142,60,0.08) 100%);
    --gradient-tea-vibrant: linear-gradient(135deg, #2E7D32 0%, #43A047 50%, #66BB6A 100%);
    --gradient-tea-shine: linear-gradient(45deg, #2E7D32 0%, #81C784 50%, #2E7D32 100%);
    --gradient-radial-tea: radial-gradient(circle at center, #388E3C 0%, #2E7D32 100%);
    --gradient-mesh-tea:
        radial-gradient(at 40% 20%, rgba(46,125,50,0.15) 0px, transparent 50%),
        radial-gradient(at 80% 0%, rgba(56,142,60,0.1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(67,160,71,0.12) 0px, transparent 50%);

    /* 高级阴影 */
    --shadow-colored-sm: 0 2px 8px rgba(46,125,50,0.12);
    --shadow-colored-md: 0 4px 16px rgba(46,125,50,0.15);
    --shadow-colored-lg: 0 8px 32px rgba(46,125,50,0.2);
    --shadow-colored-xl: 0 16px 48px rgba(46,125,50,0.25);
    --shadow-inner: inset 0 2px 8px rgba(0,0,0,0.08);
    --shadow-glow: 0 0 20px rgba(46,125,50,0.3), 0 0 40px rgba(46,125,50,0.15);

    /* 动画曲线 */
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-elastic: cubic-bezier(0.68, -0.6, 0.32, 1.6);

    /* 字重扩展 */
    --font-weight-thin: 100;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-black: 900;

    /* 层级 z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ==================== 基础样式 ==================== */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
                 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-gradient-light);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ==================== 公共容器 ==================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-lg);
}

.container-narrow {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ==================== 顶部导航栏 ==================== */
.pc-header {
    background: var(--primary-gradient);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-base);
}

.pc-header.scrolled {
    box-shadow: var(--shadow-lg);
}

.header-top {
    background: rgba(0,0,0,0.1);
    padding: var(--spacing-xs) 0;
    font-size: var(--font-sm);
    color: rgba(255,255,255,0.9);
}

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

.header-links a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    margin-left: var(--spacing-md);
    transition: color var(--transition-fast);
}

.header-links a:hover {
    color: white;
}

.header-main {
    padding: var(--spacing-md) 0;
}

.header-main .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: white;
    text-decoration: none;
    min-width: 280px;
}

.logo img {
    height: 107px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.logo-title {
    font-size: var(--font-2xl);
    font-weight: 700;
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 24px;
    font-weight: 700;
    opacity: 1;
    line-height: 1.3;
}

.logo i {
    font-size: 32px;
}

.logo:hover {
    opacity: 0.9;
}

/* 搜索框 */
.header-search {
    flex: 1;
    max-width: 600px;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: white;
    border-radius: var(--radius-full);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.search-input-wrapper input {
    flex: 1;
    border: none;
    padding: 12px var(--spacing-lg);
    font-size: var(--font-md);
    outline: none;
}

.search-input-wrapper button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px var(--spacing-xl);
    cursor: pointer;
    transition: background var(--transition-fast);
    font-size: var(--font-md);
}

.search-input-wrapper button:hover {
    background: var(--primary-dark);
}

/* 用户操作区 */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    min-width: 200px;
    justify-content: flex-end;
}

.header-action-btn {
    position: relative;
    color: white;
    background: transparent;
    border: none;
    padding: var(--spacing-sm);
    cursor: pointer;
    font-size: var(--font-lg);
    transition: transform var(--transition-fast);
}

.header-action-btn:hover {
    transform: scale(1.1);
}

.header-action-btn .badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--danger-color);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: var(--radius-full);
    min-width: 18px;
    text-align: center;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: background var(--transition-fast);
}

.user-info:hover {
    background: rgba(255,255,255,0.1);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid white;
    object-fit: cover;
}

/* 主导航菜单 */
.main-nav {
    background: rgba(255,255,255,0.95);
    border-top: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.nav-menu {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xs);
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-primary);
    text-decoration: none;
    font-size: var(--font-md);
    font-weight: 500;
    transition: all var(--transition-fast);
    border-radius: var(--radius-md);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background: rgba(46,125,50,0.05);
}

.nav-menu a i {
    font-size: var(--font-lg);
}

/* 下拉菜单 */
.nav-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: white;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    border-radius: 12px;
    padding: 6px;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transition: all .3s cubic-bezier(.4,0,.2,1);
    z-index: 1000;
}

.nav-dropdown::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 24px;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid white;
}

.has-dropdown:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    top: 100%;
}

.nav-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    color: #333;
    text-decoration: none;
    border-radius: 7px;
    transition: all 0.2s ease;
    font-size: 13.5px;
}

.nav-dropdown a i {
    width: 18px;
    color: #2E7D32;
    font-size: 13.5px;
}

.nav-dropdown a:hover {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    color: #1B5E20;
    transform: translateX(4px);
}

/* ==================== 页面内容区 ==================== */
.page-content {
    min-height: calc(100vh - 400px);
    padding: var(--spacing-2xl) 0;
}

/* 面包屑导航 */
.breadcrumb {
    background: white;
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-xl);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    list-style: none;
    font-size: var(--font-sm);
    color: var(--text-secondary);
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.breadcrumb-list a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.breadcrumb-list li:not(:last-child)::after {
    content: '/';
    color: var(--text-disabled);
}

/* ==================== 卡片组件 ==================== */
.card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--divider-color);
    font-weight: 600;
    font-size: var(--font-lg);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--divider-color);
    background: var(--background-gray);
}

/* ==================== 按钮组件 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 12px var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--primary-color);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

.btn-outline:hover:not(:disabled) {
    background: rgba(46,125,50,0.05);
    border-color: var(--primary-color);
}

.btn-lg {
    padding: 16px var(--spacing-2xl);
    font-size: var(--font-lg);
}

.btn-sm {
    padding: 8px var(--spacing-md);
    font-size: var(--font-sm);
}

/* ==================== 表单组件 ==================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 12px var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(46,125,50,0.1);
}

.form-control::placeholder {
    color: var(--text-disabled);
}

/* ==================== 页脚 ==================== */
.pc-footer {
    background: linear-gradient(135deg, #1B5E20 0%, #2E7D32 100%);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-section h3 {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-lg);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    color: rgba(255,255,255,0.7);
    font-size: var(--font-sm);
}

/* ==================== 工具类 ==================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

/* ==================== 响应式设计 ==================== */
@media (max-width: 1200px) {
    .container { max-width: 1000px; }
    .header-main .container { gap: var(--spacing-lg); }
}

@media (max-width: 992px) {
    .container { max-width: 800px; }
    .nav-menu { flex-wrap: wrap; }
    .header-search { max-width: 400px; }
}

@media (max-width: 768px) {
    .container { max-width: 100%; }
    .header-main .container { flex-direction: column; }
    .header-search { max-width: 100%; width: 100%; }
    .nav-menu { display: none; }
    .footer-main { grid-template-columns: 1fr; }
}