/**
 * 渠道人联盟 - 基础样式
 * 中国红主题 + 响应式设计
 */

/* ===== CSS变量 ===== */
:root {
    --primary-color: #C8102E;
    --secondary-color: #E60012;
    --dark-red: #A00D25;
    --light-red: #FFE5E9;
    --accent-color: #FFD700;
    --text-dark: #333333;
    --text-gray: #666666;
    --text-light: #999999;
    --bg-white: #FFFFFF;
    --bg-gray: #F5F5F5;
    --border-color: #E0E0E0;
    --success-color: #52C41A;
    --warning-color: #FAAD14;
    --error-color: #F5222D;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(200, 16, 46, 0.2);
    --radius: 4px;
    --container-width: 1200px;
    --header-height: 70px;
}

/* ===== 基础重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 14px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-white);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s;
}

a:hover {
    color: var(--dark-red);
}

ul, ol {
    list-style: none;
}

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

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

input, textarea, select {
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: var(--radius);
    transition: all 0.3s;
}

input:focus, textarea:focus, select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(200, 16, 46, 0.1);
}

button {
    cursor: pointer;
    border: none;
    border-radius: var(--radius);
    transition: all 0.3s;
}

/* ===== 通用类 ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.clearfix::after {
    content: '';
    display: table;
    clear: both;
}

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-primary { color: var(--primary-color) !important; }
.text-gray { color: var(--text-gray) !important; }
.text-light { color: var(--text-light) !important; }

.bg-primary { background-color: var(--primary-color) !important; color: white; }
.bg-gray { background-color: var(--bg-gray) !important; }

.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mt-40 { margin-top: 40px; }
.mt-60 { margin-top: 60px; }

.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }
.mb-40 { margin-bottom: 40px; }

.p-20 { padding: 20px; }
.p-30 { padding: 30px; }
.p-40 { padding: 40px; }

/* ===== 按钮 ===== */
.btn {
    display: inline-block;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    border-radius: var(--radius);
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--dark-red);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-large {
    padding: 14px 36px;
    font-size: 16px;
}

.btn-small {
    padding: 6px 16px;
    font-size: 12px;
}

.btn-block {
    display: block;
    width: 100%;
}

/* ===== 卡片 ===== */
.card {
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all 0.3s;
}

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

.card-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-gray);
}

/* ===== 表单 ===== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 14px;
    transition: all 0.3s;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.1);
}

.form-control-lg {
    padding: 14px 18px;
    font-size: 16px;
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* ===== 分页 ===== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin: 30px 0;
}

.pagination a,
.pagination span {
    display: inline-block;
    min-width: 40px;
    height: 40px;
    line-height: 38px;
    padding: 0 12px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 14px;
}

.pagination a {
    color: var(--primary-color);
    transition: all 0.3s;
}

.pagination a:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination span.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* ===== 徽章 ===== */
.badge {
    display: inline-block;
    padding: 4px 8px;
    font-size: 12px;
    border-radius: 2px;
    color: white;
}

.badge-primary { background-color: var(--primary-color); }
.badge-success { background-color: var(--success-color); }
.badge-warning { background-color: var(--warning-color); }
.badge-error { background-color: var(--error-color); }
.badge-gray { background-color: var(--text-gray); }

/* ===== 提示框 ===== */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    border-left: 4px solid;
}

.alert-success {
    background-color: #f6ffed;
    border-color: var(--success-color);
    color: #52c41a;
}

.alert-warning {
    background-color: #fffbe6;
    border-color: var(--warning-color);
    color: #faad14;
}

.alert-error {
    background-color: #fff1f0;
    border-color: var(--error-color);
    color: #f5222d;
}

/* ===== 模态框 ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: white;
    border-radius: var(--radius);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: auto;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    text-align: right;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    :root {
        --container-width: 100%;
        --header-height: 60px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .btn-large {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .card-body {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
    
    .btn-large {
        padding: 10px 20px;
    }
}