/* ==================== 全局重置与变量 ==================== */
:root {
    --primary: #4F46E5;
    --primary-light: #818CF8;
    --primary-dark: #3730A3;
    --primary-bg: #EEF2FF;
    --secondary: #0EA5E9;
    --secondary-bg: #E0F2FE;
    --accent: #F59E0B;
    --accent-bg: #FEF3C7;
    --success: #10B981;
    --success-bg: #D1FAE5;
    --danger: #EF4444;
    --danger-bg: #FEE2E2;
    --purple: #8B5CF6;
    --purple-bg: #EDE9FE;
    --pink: #EC4899;
    --pink-bg: #FCE7F3;
    --teal: #14B8A6;
    --teal-bg: #CCFBF1;

    --bg-page: #F1F5F9;
    --bg-card: #FFFFFF;
    --bg-hover: #F8FAFC;
    --bg-input: #F8FAFC;

    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-tertiary: #94A3B8;
    --text-inverse: #FFFFFF;

    --border: #E2E8F0;
    --border-light: #F1F5F9;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);

    --radius-sm: 6px;
    --radius: 10px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
    --topbar-height: 64px;

    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg-page);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
    overflow: hidden;
    height: 100vh;
}

#app {
    display: flex;
    height: 100vh;
}

/* ==================== 侧边栏 ==================== */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #1E293B 0%, #0F172A 100%);
    display: flex;
    flex-direction: column;
    transition: width var(--transition);
    flex-shrink: 0;
    z-index: 100;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar-header {
    padding: 20px 18px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    white-space: nowrap;
}

.logo-title {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
}

.logo-subtitle {
    font-size: 11px;
    color: rgba(255,255,255,0.5);
    white-space: nowrap;
}

.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-label,
.sidebar.collapsed .nav-badge,
.sidebar.collapsed .user-info {
    display: none;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 10px;
    overflow-y: auto;
}

.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}
.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.15);
    border-radius: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: var(--radius);
    color: rgba(255,255,255,0.65);
    cursor: pointer;
    transition: all var(--transition);
    margin-bottom: 4px;
    position: relative;
    text-decoration: none;
    font-size: 14px;
}

.nav-item:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
}

.nav-item.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

.nav-icon {
    font-size: 18px;
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}

.nav-label {
    flex: 1;
    white-space: nowrap;
}

.nav-badge {
    background: rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.7);
    font-size: 11px;
    padding: 2px 7px;
    border-radius: 10px;
    font-weight: 600;
}

.nav-item.active .nav-badge {
    background: rgba(255,255,255,0.25);
    color: #fff;
}

.nav-divider {
    height: 1px;
    background: rgba(255,255,255,0.08);
    margin: 12px 14px;
}

.sidebar-footer {
    padding: 14px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.user-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background var(--transition);
}

.user-card:hover {
    background: rgba(255,255,255,0.08);
}

.user-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light), var(--purple));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}

.user-info {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.user-name {
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

.user-role {
    color: rgba(255,255,255,0.5);
    font-size: 11px;
    white-space: nowrap;
}

/* ==================== 主内容区 ==================== */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

/* 顶部栏 */
.top-bar {
    height: var(--topbar-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    flex-shrink: 0;
    z-index: 50;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.menu-toggle {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.menu-toggle:hover {
    background: var(--bg-hover);
}

.top-bar-left h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-box {
    position: relative;
    width: 260px;
}

.search-box input {
    width: 100%;
    padding: 8px 36px 8px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 13px;
    background: var(--bg-input);
    transition: all var(--transition);
    outline: none;
}

.search-box input:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px var(--primary-bg);
    background: #fff;
}

.search-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    cursor: pointer;
}

.icon-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-input);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

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

/* 模块容器 */
.module-container {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.module-container::-webkit-scrollbar {
    width: 6px;
}
.module-container::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

/* ==================== 通用组件 ==================== */
.section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-title::before {
    content: '';
    width: 4px;
    height: 18px;
    background: var(--primary);
    border-radius: 2px;
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: box-shadow var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-body {
    padding: 20px;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    font-family: inherit;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(79,70,229,0.3);
}

.btn-secondary {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border);
}
.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--primary-light);
}

.btn-success {
    background: var(--success);
    color: #fff;
}
.btn-success:hover {
    background: #059669;
    box-shadow: 0 4px 12px rgba(16,185,129,0.3);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover {
    background: #DC2626;
}

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

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 15px;
}

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

/* 表单 */
.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-label .required {
    color: var(--danger);
    margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    background: var(--bg-input);
    transition: all var(--transition);
    outline: none;
    font-family: inherit;
    color: var(--text-primary);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px var(--primary-bg);
    background: #fff;
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

/* 标签 */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.tag-primary { background: var(--primary-bg); color: var(--primary-dark); }
.tag-secondary { background: var(--secondary-bg); color: #0369A1; }
.tag-success { background: var(--success-bg); color: #047857; }
.tag-accent { background: var(--accent-bg); color: #B45309; }
.tag-purple { background: var(--purple-bg); color: #6D28D9; }
.tag-pink { background: var(--pink-bg); color: #BE185D; }
.tag-teal { background: var(--teal-bg); color: #0F766E; }

/* 网格 */
.grid {
    display: grid;
    gap: 16px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ==================== 首页 ==================== */
.welcome-banner {
    background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #9333EA 100%);
    border-radius: var(--radius-xl);
    padding: 36px;
    color: #fff;
    position: relative;
    overflow: hidden;
    margin-bottom: 24px;
}

.welcome-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.welcome-banner::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: 30%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.welcome-content {
    position: relative;
    z-index: 1;
}

.welcome-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.welcome-desc {
    font-size: 14px;
    opacity: 0.85;
    margin-bottom: 20px;
    max-width: 500px;
}

.welcome-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.welcome-actions .btn {
    backdrop-filter: blur(10px);
}

.welcome-actions .btn-primary {
    background: rgba(255,255,255,0.95);
    color: var(--primary-dark);
}

.welcome-actions .btn-secondary {
    background: rgba(255,255,255,0.15);
    color: #fff;
    border-color: rgba(255,255,255,0.3);
}

/* 统计卡片 */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 20px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    cursor: pointer;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 12px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.stat-trend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    margin-top: 8px;
    font-weight: 600;
}

.stat-trend.up { color: var(--success); }
.stat-trend.down { color: var(--danger); }

/* 功能入口卡片 */
.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--card-accent, var(--primary));
}

.feature-icon-large {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 16px;
    background: var(--card-bg, var(--primary-bg));
}

.feature-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.feature-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
}

.feature-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.feature-arrow {
    position: absolute;
    bottom: 20px;
    right: 20px;
    font-size: 20px;
    color: var(--text-tertiary);
    transition: all var(--transition);
}

.feature-card:hover .feature-arrow {
    color: var(--primary);
    transform: translateX(4px);
}

/* ==================== 说课稿模块 ==================== */
.module-header {
    margin-bottom: 24px;
}

.module-header h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.module-header p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 类型选择卡片 */
.type-selector {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.type-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
}

.type-card:hover {
    border-color: var(--primary-light);
    background: var(--primary-bg);
}

.type-card.selected {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 4px rgba(79,70,229,0.1);
}

.type-card.selected::after {
    content: '✓';
    position: absolute;
    top: 12px;
    right: 12px;
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
}

.type-card-icon {
    font-size: 32px;
    margin-bottom: 10px;
}

.type-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.type-card-desc {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 模式选择 */
.mode-selector {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.mode-card {
    flex: 1;
    min-width: 200px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}

.mode-card:hover {
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.mode-card.selected {
    border-color: var(--primary);
    background: var(--primary-bg);
}

.mode-card-icon {
    font-size: 28px;
    margin-bottom: 8px;
}

.mode-card-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.mode-card-desc {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 步骤条 */
.step-bar {
    display: flex;
    align-items: center;
    margin-bottom: 28px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 16px 24px;
    box-shadow: var(--shadow-sm);
}

.step-item {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    background: var(--bg-input);
    color: var(--text-tertiary);
    transition: all var(--transition);
    flex-shrink: 0;
}

.step-item.active .step-num {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 0 0 4px var(--primary-bg);
}

.step-item.completed .step-num {
    background: var(--success);
    color: #fff;
}

.step-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-tertiary);
    white-space: nowrap;
}

.step-item.active .step-label {
    color: var(--text-primary);
}

.step-item.completed .step-label {
    color: var(--text-primary);
}

.step-connector {
    flex: 0.5;
    height: 2px;
    background: var(--border);
    margin: 0 8px;
}

.step-connector.completed {
    background: var(--success);
}

/* 输入面板 */
.input-panel {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}

/* 亮点提炼 */
.highlight-box {
    background: linear-gradient(135deg, var(--accent-bg) 0%, #FFF7ED 100%);
    border: 1px solid #FDE68A;
    border-radius: var(--radius-md);
    padding: 16px;
    margin-top: 16px;
}

.highlight-box-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 700;
    color: #92400E;
    margin-bottom: 10px;
}

.highlight-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.highlight-list li {
    font-size: 13px;
    color: #78350F;
    padding-left: 20px;
    position: relative;
}

.highlight-list li::before {
    content: '★';
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* 生成结果 */
.result-panel {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-input);
}

.result-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.result-actions {
    display: flex;
    gap: 8px;
}

.result-body {
    padding: 24px;
    max-height: 600px;
    overflow-y: auto;
    line-height: 1.8;
    font-size: 14px;
}

.result-body h1 {
    font-size: 22px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.result-body h2 {
    font-size: 17px;
    font-weight: 700;
    margin: 20px 0 10px;
    padding-left: 12px;
    border-left: 4px solid var(--primary);
    color: var(--text-primary);
}

.result-body h3 {
    font-size: 15px;
    font-weight: 600;
    margin: 14px 0 8px;
    color: var(--text-primary);
}

.result-body p {
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.result-body ul, .result-body ol {
    margin: 8px 0 12px 20px;
}

.result-body li {
    margin-bottom: 4px;
    color: var(--text-secondary);
}

.result-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
}

.result-body th, .result-body td {
    border: 1px solid var(--border);
    padding: 8px 12px;
    text-align: left;
    font-size: 13px;
}

.result-body th {
    background: var(--primary-bg);
    font-weight: 600;
    color: var(--primary-dark);
}

/* ==================== 竞赛助手 ==================== */
.competition-tabs {
    display: flex;
    gap: 4px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 6px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.competition-tab {
    flex: 1;
    padding: 12px 20px;
    text-align: center;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all var(--transition);
    border: none;
    background: none;
    font-family: inherit;
}

.competition-tab:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.competition-tab.active {
    background: var(--primary);
    color: #fff;
    box-shadow: var(--shadow-md);
}

.competition-tab-icon {
    margin-right: 6px;
}

/* 创新点卡片 */
.innovation-card {
    background: linear-gradient(135deg, var(--purple-bg) 0%, #F5F3FF 100%);
    border: 1px solid #DDD6FE;
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 12px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.innovation-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--purple);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

.innovation-content h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.innovation-content p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==================== 世赛模块 ==================== */
.worldskills-hero {
    background: linear-gradient(135deg, #0EA5E9 0%, #06B6D4 50%, #14B8A6 100%);
    border-radius: var(--radius-xl);
    padding: 32px;
    color: #fff;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.worldskills-hero::before {
    content: '🌍';
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 100px;
    opacity: 0.15;
}

.worldskills-hero h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.worldskills-hero p {
    font-size: 14px;
    opacity: 0.9;
    max-width: 600px;
}

/* 一键生成面板 */
.generate-panel {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}

.output-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 2px solid var(--border);
    margin-bottom: 20px;
}

.output-tab {
    padding: 10px 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition);
    border: none;
    background: none;
    font-family: inherit;
}

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

.output-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* 思维导图 */
.mindmap-container {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 30px;
    min-height: 500px;
    overflow-x: auto;
}

.mindmap-svg {
    display: block;
    margin: 0 auto;
}

/* ==================== 模板库 ==================== */
.template-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.template-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    cursor: pointer;
}

.template-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.template-preview {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    position: relative;
}

.template-body {
    padding: 16px;
}

.template-name {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
}

.template-info {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.template-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-tertiary);
}

/* ==================== 生成记录 ==================== */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.history-item {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 16px;
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all var(--transition);
    cursor: pointer;
}

.history-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.history-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.history-content {
    flex: 1;
    min-width: 0;
}

.history-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-meta {
    font-size: 12px;
    color: var(--text-tertiary);
}

.history-actions {
    display: flex;
    gap: 6px;
}

/* ==================== Toast 通知 ==================== */
.toast-container {
    position: fixed;
    top: 80px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 300px;
    animation: slideIn 0.3s ease;
    border-left: 4px solid var(--primary);
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--accent); }

.toast-icon {
    font-size: 20px;
}

.toast-message {
    font-size: 14px;
    color: var(--text-primary);
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* ==================== 模态框 ==================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 9000;
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal-overlay.show {
    display: flex;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 720px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    animation: modalIn 0.25s ease;
}

@keyframes modalIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: 17px;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: var(--text-tertiary);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

/* ==================== 加载动画 ==================== */
.loading-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px;
    gap: 16px;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 600;
}

.loading-subtext {
    font-size: 13px;
    color: var(--text-tertiary);
}

/* ==================== 进度条 ==================== */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
    margin: 12px 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--purple));
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

/* ==================== 空状态 ==================== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-tertiary);
}

.empty-state-icon {
    font-size: 56px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-text {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}

.empty-state-desc {
    font-size: 13px;
}

/* ==================== 响应式 ==================== */
@media (max-width: 1200px) {
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .template-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sidebar { width: var(--sidebar-collapsed); }
    .sidebar .logo-text, .sidebar .nav-label, .sidebar .nav-badge, .sidebar .user-info { display: none; }
    .stat-grid { grid-template-columns: 1fr; }
    .type-selector, .template-grid { grid-template-columns: 1fr; }
    .form-row, .form-row-3 { grid-template-columns: 1fr; }
    .search-box { width: 160px; }
}

/* 通用工具类 */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.flex-wrap { flex-wrap: wrap; }
.align-center { align-items: center; }
.w-full { width: 100%; }
.hidden { display: none !important; }