/* 深色主题 - 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #15151f;
    --bg-card-hover: #1c1c28;
    --accent-primary: #8b5cf6;
    --accent-secondary: #6366f1;
    --accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #6366f1 50%, #3b82f6 100%);
    --accent-glow: rgba(139, 92, 246, 0.4);
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(139, 92, 246, 0.5);
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --hot: #f43f5e;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 顶部公告条 */
.announcement-bar {
    background: var(--accent-gradient);
    padding: 12px 0;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
}

.announcement-bar.hidden {
    height: 0;
    padding: 0;
    opacity: 0;
}

.announcement-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(0); }
    100% { transform: translateX(50%); }
}

.announcement-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
    animation: pulse 2s infinite;
    flex-shrink: 0;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.announcement-slider {
    flex: 1;
    overflow: hidden;
}

.announcement-track {
    position: relative;
}

.announcement-item {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
    animation: fadeIn 0.5s;
}

.announcement-item.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.announcement-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    backdrop-filter: blur(10px);
    flex-shrink: 0;
}

.announcement-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.announcement-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
    flex-shrink: 0;
}

.announcement-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 导航栏 */
.header {
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 40px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--accent-gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.2s;
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.1);
}

.nav-badge {
    background: var(--hot);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    animation: badge-pulse 2s infinite;
}

@keyframes badge-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px 16px;
    width: 320px;
    transition: all 0.2s;
    position: relative;
}

.search-box:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.search-icon {
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    margin-right: 10px;
    flex-shrink: 0;
}

.search-box input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    font-size: 14px;
    color: var(--text-primary);
}

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

.search-kbd {
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 6px;
    font-family: inherit;
    cursor: pointer;
    flex-shrink: 0;
}

.submit-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-gradient);
    color: white;
    padding: 10px 20px;
    border-radius: 10px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s;
    flex-shrink: 0;
}

.submit-btn svg {
    width: 16px;
    height: 16px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* 搜索下拉 */
.search-dropdown {
    position: fixed;
    top: 70px;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
    z-index: 200;
    display: none;
    box-shadow: var(--shadow-lg);
}

.search-dropdown.show {
    display: block;
    animation: slideDown 0.2s;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.dropdown-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.clear-history {
    background: none;
    border: none;
    color: var(--accent-primary);
    cursor: pointer;
    font-size: 12px;
}

.history-list {
    margin-bottom: 16px;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.history-item:hover {
    background: var(--bg-tertiary);
}

.history-item svg {
    width: 14px;
    height: 14px;
    color: var(--text-muted);
}

.hot-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.hot-tag {
    background: var(--bg-tertiary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.hot-tag:hover {
    background: var(--accent-primary);
    color: white;
}

/* Hero区域 */
.hero {
    position: relative;
    padding: 80px 0 100px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.hero-glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(139, 92, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 92, 246, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, black 70%, transparent 100%);
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    color: var(--accent-primary);
    margin-bottom: 24px;
}

.badge-icon {
    font-size: 16px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight-number {
    position: relative;
    color: var(--accent-primary);
}

.highlight-number::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 8px;
    background: var(--accent-gradient);
    opacity: 0.3;
    border-radius: 4px;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-desc strong {
    color: var(--text-primary);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 50px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--accent-gradient);
    color: white;
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-secondary svg {
    width: 18px;
    height: 18px;
}

.btn-secondary:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-suffix {
    font-size: 24px;
    color: var(--accent-primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    background: var(--border-color);
}

/* 热门工具快速入口 */
.hero-tools {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 60px;
    flex-wrap: wrap;
}

.quick-tool {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: transform 0.2s;
}

.quick-tool:hover {
    transform: translateY(-5px);
}

.quick-tool-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: var(--shadow-md);
}

.quick-tool span {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 分类区域 */
.categories {
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.categories-header {
    text-align: center;
    margin-bottom: 30px;
}

.categories-header h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

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

.category-tabs {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.category-tab {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
}

.category-tab:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.category-tab.active {
    background: var(--accent-gradient);
    border-color: transparent;
    color: white;
    box-shadow: var(--shadow-glow);
}

.tab-icon {
    font-size: 18px;
}

.tab-text {
    font-size: 14px;
    font-weight: 500;
}

.tab-count {
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

.category-tab.active .tab-count {
    background: rgba(255, 255, 255, 0.2);
}

/* 主内容区 */
.main-content {
    padding: 50px 0;
}

.content-layout {
    display: grid;
    grid-template-columns: 280px 1fr 280px;
    gap: 30px;
}

/* 侧边栏 */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
}

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

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.view-all {
    font-size: 13px;
    color: var(--accent-primary);
    text-decoration: none;
}

.view-all:hover {
    text-decoration: underline;
}

/* 热门榜单 */
.hot-items {
    padding: 8px;
}

.hot-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 10px;
    text-decoration: none;
    transition: background 0.2s;
    cursor: pointer;
}

.hot-item:hover {
    background: var(--bg-tertiary);
}

.hot-rank {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-muted);
    flex-shrink: 0;
}

.hot-rank.rank-1 {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: white;
}

.hot-rank.rank-2 {
    background: linear-gradient(135deg, #94a3b8, #64748b);
    color: white;
}

.hot-rank.rank-3 {
    background: linear-gradient(135deg, #f97316, #ea580c);
    color: white;
}

.hot-info {
    flex: 1;
    min-width: 0;
}

.hot-name {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.hot-visits {
    font-size: 12px;
    color: var(--text-muted);
}

.hot-trend {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 6px;
    flex-shrink: 0;
}

.hot-trend.up {
    color: var(--success);
    background: rgba(34, 197, 94, 0.1);
}

.hot-trend.new {
    color: var(--hot);
    background: rgba(244, 63, 94, 0.1);
}

/* 广告卡片 */
.ad-card {
    position: relative;
}

.ad-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--warning);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    text-transform: uppercase;
}

.ad-content {
    padding: 24px;
    text-align: center;
}

.ad-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.ad-content h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.ad-content p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.ad-price {
    margin-bottom: 16px;
}

.price-original {
    font-size: 14px;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-right: 8px;
}

.price-current {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-primary);
}

.ad-btn {
    display: block;
    background: var(--accent-gradient);
    color: white;
    padding: 12px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
    text-align: center;
}

.ad-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.ad-card.highlight {
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), transparent);
}

/* 快速入口 */
.quick-links {
    padding: 20px;
}

.quick-links h3 {
    font-size: 16px;
    margin-bottom: 16px;
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.quick-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 12px;
    background: var(--bg-tertiary);
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.2s;
}

.quick-link:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.quick-link span:first-child {
    font-size: 20px;
}

.quick-link span:last-child {
    font-size: 12px;
    color: var(--text-secondary);
}

/* CTA卡片 */
.cta-card {
    padding: 24px;
    text-align: center;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(59, 130, 246, 0.1));
    border-color: rgba(139, 92, 246, 0.3);
}

.cta-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.cta-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.cta-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.cta-btn {
    display: block;
    background: var(--accent-gradient);
    color: white;
    padding: 14px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 20px;
    transition: all 0.2s;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.cta-users {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.user-avatars {
    display: flex;
}

.user-avatars img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--bg-card);
    margin-left: -8px;
    background: var(--bg-tertiary);
}

.user-avatars img:first-child {
    margin-left: 0;
}

.cta-users span {
    font-size: 12px;
    color: var(--text-muted);
}

/* 社区卡片 */
.community-card {
    padding: 20px;
}

.community-card h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.community-card > p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.community-stats {
    display: flex;
    gap: 24px;
    margin-bottom: 16px;
}

.community-stat {
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-primary);
}

.stat-text {
    font-size: 12px;
    color: var(--text-muted);
}

.community-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
}

.community-btn svg {
    width: 18px;
    height: 18px;
}

.community-btn:hover {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.1);
}

/* 工具区域 */
.tools-section {
    min-width: 0;
}

.tools-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.tools-count {
    font-size: 14px;
    color: var(--text-secondary);
}

.tools-count span {
    font-weight: 600;
    color: var(--text-primary);
}

.tools-sort {
    display: flex;
    gap: 8px;
}

.sort-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.sort-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.sort-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

/* 工具网格 */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

/* 工具卡片 */
.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity 0.3s;
}

.tool-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

.tool-card:hover::before {
    opacity: 1;
}

.tool-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
}

.tool-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    flex-shrink: 0;
}

.tool-info {
    flex: 1;
    min-width: 0;
}

.tool-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tool-name a {
    color: var(--text-primary);
    text-decoration: none;
}

.tool-name a:hover {
    color: var(--accent-primary);
}

.tool-category {
    font-size: 12px;
    color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.1);
    padding: 4px 10px;
    border-radius: 6px;
    display: inline-block;
}

.tool-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tool-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tool-tags {
    display: flex;
    gap: 8px;
}

.tool-tag {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 6px;
    font-weight: 500;
}

.tool-tag.free {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
}

.tool-tag.paid {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.tool-tag.hot {
    background: rgba(244, 63, 94, 0.1);
    color: var(--hot);
}

.tool-action {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 13px;
    transition: color 0.2s;
}

.tool-action svg {
    width: 16px;
    height: 16px;
}

.tool-card:hover .tool-action {
    color: var(--accent-primary);
}

/* 加载更多 */
.load-more {
    text-align: center;
    margin-top: 40px;
}

.load-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.load-more-btn svg {
    width: 18px;
    height: 18px;
}

.load-more-btn:hover {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.1);
}

/* 横幅广告 */
.banner-ad {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(59, 130, 246, 0.1));
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 20px;
    padding: 32px 40px;
    margin-top: 50px;
}

.banner-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.banner-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.banner-icon {
    font-size: 48px;
}

.banner-text h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}

.banner-text p {
    color: var(--text-secondary);
}

.banner-right {
    text-align: right;
}

.banner-btn {
    display: inline-block;
    background: var(--accent-gradient);
    color: white;
    padding: 14px 28px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
}

.banner-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.banner-note {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 8px;
}

/* 页脚 */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
    margin-top: 80px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    width: 32px;
    height: 32px;
}

.footer-logo .logo-icon svg {
    width: 18px;
    height: 18px;
}

.footer-brand > p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-btn {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.2s;
    text-decoration: none;
}

.social-btn svg {
    width: 18px;
    height: 18px;
}

.social-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.1);
}

.footer-links {
    display: flex;
    gap: 80px;
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 12px;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: var(--text-muted);
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--accent-gradient);
    border: none;
    border-radius: 14px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 99;
    box-shadow: var(--shadow-md);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.show {
    display: flex;
    animation: fadeIn 0.3s;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    display: none;
    animation: slideUp 0.3s;
}

.modal.show {
    display: block;
}

.modal-small {
    max-width: 360px;
}

.modal-video {
    max-width: 640px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: var(--bg-tertiary);
    border: none;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

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

.modal-body {
    padding: 24px;
}

/* 注册弹窗 */
.register-bonus {
    display: flex;
    align-items: center;
    gap: 16px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(59, 130, 246, 0.1));
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 24px;
}

.bonus-icon {
    font-size: 32px;
}

.bonus-title {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

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

.register-form, .submit-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input, .form-group select, .form-group textarea {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all 0.2s;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.form-group input::placeholder, .form-group textarea::placeholder {
    color: var(--text-muted);
}

.code-input {
    display: flex;
    gap: 10px;
}

.code-input input {
    flex: 1;
}

.send-code {
    background: var(--accent-primary);
    border: none;
    color: white;
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
}

.send-code:hover {
    background: var(--accent-secondary);
}

.send-code:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.submit-form-btn {
    background: var(--accent-gradient);
    border: none;
    color: white;
    padding: 14px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.submit-form-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.register-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

.register-footer a {
    color: var(--accent-primary);
    text-decoration: none;
}

/* VIP弹窗 */
.vip-plans {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.vip-plan {
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.vip-plan:hover {
    border-color: var(--accent-primary);
}

.vip-plan.recommended {
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), transparent);
}

.vip-plan.selected {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

.plan-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-gradient);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
}

.plan-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    text-align: center;
}

.plan-price {
    text-align: center;
    margin-bottom: 16px;
}

.plan-price .price-current {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent-primary);
}

.plan-price .price-original {
    font-size: 14px;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-left: 8px;
}

.plan-features {
    list-style: none;
    font-size: 13px;
    color: var(--text-secondary);
}

.plan-features li {
    padding: 4px 0;
}

.vip-btn {
    width: 100%;
    background: var(--accent-gradient);
    border: none;
    color: white;
    padding: 14px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.vip-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* 教程弹窗 */
.guide-steps {
    margin-bottom: 24px;
}

.guide-step {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
}

.guide-step:last-child {
    border-bottom: none;
}

.step-num {
    width: 32px;
    height: 32px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 15px;
    margin-bottom: 4px;
}

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

.guide-form {
    text-align: center;
}

.guide-form p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.guide-form form {
    display: flex;
    gap: 10px;
}

.guide-form input {
    flex: 1;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text-primary);
}

.guide-form input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.guide-form button {
    background: var(--accent-gradient);
    border: none;
    color: white;
    padding: 12px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.guide-form button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* 二维码 */
.qrcode-placeholder {
    padding: 20px;
}

.qr-code {
    width: 150px;
    height: 150px;
    background: var(--bg-tertiary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    margin: 0 auto 16px;
}

.qr-tip {
    font-size: 13px;
    color: var(--text-muted);
}

/* 视频占位 */
.video-placeholder {
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: 80px 40px;
    text-align: center;
}

.play-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 16px;
}

/* Toast提示 */
.toast-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.toast-btn {
    background: var(--accent-gradient);
    border: none;
    color: white;
    padding: 12px 32px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 20px;
}

/* Toast容器 */
.toast-container {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s;
    min-width: 280px;
}

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

.toast-item.success {
    border-color: var(--success);
}

.toast-item.error {
    border-color: var(--error);
}

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

.toast-item-text {
    flex: 1;
    font-size: 14px;
}

.toast-item-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 16px;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .content-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
    }

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

@media (max-width: 992px) {
    .header-left {
        gap: 20px;
    }

    .nav {
        display: none;
    }

    .search-box {
        width: 240px;
    }

    .hero-title {
        font-size: 42px;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-value {
        font-size: 28px;
    }

    .footer-top {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        gap: 40px;
    }

    .vip-plans {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-wrap: wrap;
        gap: 16px;
    }

    .header-right {
        width: 100%;
        flex-direction: column;
    }

    .search-box {
        width: 100%;
    }

    .submit-btn {
        width: 100%;
        justify-content: center;
    }

    .hero {
        padding: 50px 0 60px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-desc {
        font-size: 16px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 20px;
    }

    .stat-divider {
        display: none;
    }

    .hero-tools {
        gap: 12px;
    }

    .quick-tool-icon {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }

    .category-tabs {
        gap: 8px;
    }

    .category-tab {
        padding: 10px 14px;
    }

    .tab-count {
        display: none;
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .tools-header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    .tools-sort {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 8px;
    }

    .banner-content {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }

    .banner-left {
        flex-direction: column;
    }

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

    .footer-links {
        flex-wrap: wrap;
        gap: 30px;
    }

    .search-dropdown {
        width: calc(100% - 48px);
        left: 24px;
        transform: none;
    }

    .guide-form form {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 28px;
    }

    .tool-card {
        padding: 20px;
    }

    .tool-icon {
        width: 44px;
        height: 44px;
        font-size: 22px;
    }

    .tool-name {
        font-size: 16px;
    }

    .banner-ad {
        padding: 24px;
    }

    .banner-icon {
        font-size: 36px;
    }

    .banner-text h3 {
        font-size: 18px;
    }
}