/*
 * 全球供应链智能匹配平台 - 样式表
 * 深色科技主题
 */

/* ========================================
   1. CSS变量和基础样式
   ======================================== */

:root {
    /* 主色调 */
    --primary-cyan: #00E5CC;
    --primary-cyan-dark: #00B8A3;
    --primary-cyan-light: #4FFFEC;
    
    /* 背景色 - 中性暗色调 */
    --bg-dark: #0A0A0A;
    --bg-darker: #050505;
    --bg-card: #121212;
    --bg-card-hover: #1A1A1A;
    
    /* 边框色 - 中性灰 */
    --border-color: #2A2A2A;
    --border-glow: rgba(0, 229, 204, 0.3);
    
    /* 文字色 */
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    /* 强调色 */
    --accent-yellow: #FFD93D;
    --accent-red: #FF6B6B;
    --accent-blue: #45B7D1;
    --accent-green: #4ECDC4;
    
    /* 字体 */
    --font-primary: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* 动画 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========================================
   2. 导航栏
   ======================================== */

.header {
    background-color: var(--bg-darker);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

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

.language-selector {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition-normal);
    position: relative;
}

.language-selector:hover {
    border-color: var(--primary-cyan);
    color: var(--text-primary);
}

.language-selector .lang-icon {
    width: 18px;
    height: 18px;
}

.language-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    min-width: 150px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.language-selector:hover .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.lang-option:first-child {
    border-radius: 8px 8px 0 0;
}

.lang-option:last-child {
    border-radius: 0 0 8px 8px;
}

.lang-option:hover {
    background: rgba(0, 229, 204, 0.1);
    color: var(--primary-cyan);
}

.lang-option.active {
    background: rgba(0, 229, 204, 0.15);
    color: var(--primary-cyan);
}

.lang-option .lang-flag {
    font-size: 16px;
}

.dropdown-arrow {
    font-size: 10px;
    opacity: 0.6;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: visible;
    min-width: 280px;
}

.search-box input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 10px 16px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
}

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

.search-btn {
    background: transparent;
    border: none;
    padding: 10px 14px;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

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

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

/* 搜索结果下拉面板 */
.search-box {
    position: relative;
}

.search-results-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    min-width: 420px;
    max-height: 480px;
    overflow-y: auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    z-index: 9999;
    display: none;
    padding: 8px 0;
}

.search-results-dropdown.active {
    display: block;
}

.search-results-group {
    padding: 4px 0;
}

.search-results-group + .search-results-group {
    border-top: 1px solid var(--border-color);
}

.search-group-label {
    padding: 8px 16px 4px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    cursor: pointer;
    text-decoration: none;
    color: var(--text-primary);
    transition: background 0.15s;
}

.search-result-item:hover,
.search-result-item.active {
    background: rgba(0, 229, 204, 0.08);
}

.search-result-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 16px;
}

.search-result-icon.supplier { background: rgba(78, 205, 196, 0.15); color: #4ECDC4; }
.search-result-icon.page { background: rgba(69, 183, 209, 0.15); color: #45B7D1; }
.search-result-icon.product { background: rgba(255, 217, 61, 0.15); color: #FFD93D; }
.search-result-icon.news { background: rgba(255, 107, 107, 0.15); color: #FF6B6B; }

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

.search-result-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result-title .highlight {
    color: var(--primary-cyan);
    font-weight: 700;
}

.search-result-desc {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 2px;
}

.search-result-arrow {
    color: var(--text-muted);
    font-size: 14px;
    flex-shrink: 0;
}

.search-no-result {
    padding: 32px 16px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

.search-no-result svg {
    width: 48px;
    height: 48px;
    margin-bottom: 12px;
    opacity: 0.4;
}

.search-hot-tags {
    padding: 12px 16px;
}

.search-hot-tags .hot-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

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

.search-hot-tags .hot-tag {
    padding: 4px 12px;
    background: rgba(0, 229, 204, 0.08);
    border: 1px solid rgba(0, 229, 204, 0.15);
    border-radius: 14px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
}

.search-hot-tags .hot-tag:hover {
    background: rgba(0, 229, 204, 0.15);
    color: var(--primary-cyan);
    border-color: var(--primary-cyan);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    border-radius: 6px;
    transition: var(--transition-normal);
    white-space: nowrap;
}

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

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

.btn-login {
    padding: 10px 24px;
    background: var(--primary-cyan);
    color: var(--bg-dark);
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-login:hover {
    background: var(--primary-cyan-light);
    box-shadow: 0 0 20px rgba(0, 229, 204, 0.4);
}

/* ========================================
   3. 页面标题
   ======================================== */

.page-title-bar {
    text-align: center;
    padding: 24px 0;
    background: var(--bg-darker);
}

.page-title-bar h1 {
    font-size: 24px;
    font-weight: 500;
    color: var(--primary-cyan);
    letter-spacing: 4px;
}

/* ========================================
   4. Hero 横幅区域 + 资讯面板
   ======================================== */

.hero-news-row {
    display: flex;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    min-height: 400px;
}

.hero-section {
    position: relative;
    width: 50%;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(180deg, #001428 0%, #002040 50%, #001830 100%);
    padding: 0;
    max-width: none;
    margin: 0;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.wave-animation {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 80%;
}

.wave {
    fill: none;
    stroke-width: 2;
    animation: wave-flow 8s ease-in-out infinite;
}

.wave-1 {
    stroke: rgba(0, 229, 204, 0.15);
    animation-delay: 0s;
}

.wave-2 {
    stroke: rgba(0, 229, 204, 0.1);
    animation-delay: -2s;
}

.wave-3 {
    stroke: rgba(0, 229, 204, 0.05);
    animation-delay: -4s;
}

@keyframes wave-flow {
    0%, 100% {
        d: path("M0,200 C320,100 440,300 720,200 C1000,100 1120,300 1440,200");
    }
    50% {
        d: path("M0,200 C320,300 440,100 720,200 C1000,300 1120,100 1440,200");
    }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
}

.hero-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-cyan);
    margin-bottom: 16px;
    text-shadow: 0 0 40px rgba(0, 229, 204, 0.5);
}

.hero-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.btn-primary {
    padding: 14px 48px;
    background: var(--primary-cyan);
    color: var(--bg-dark);
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-primary:hover {
    background: var(--primary-cyan-light);
    box-shadow: 0 0 30px rgba(0, 229, 204, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    padding: 14px 48px;
    background: transparent;
    color: var(--primary-cyan);
    border: 1px solid var(--primary-cyan);
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
    text-decoration: none;
    display: inline-block;
}

.btn-secondary:hover {
    background: rgba(0, 229, 204, 0.1);
    box-shadow: 0 0 20px rgba(0, 229, 204, 0.3);
    transform: translateY(-2px);
}

.hero-dots {
    position: absolute;
    bottom: 40px;
    display: flex;
    gap: 12px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition-normal);
}

.dot.active {
    background: var(--primary-cyan);
    box-shadow: 0 0 10px var(--primary-cyan);
}

.dot:hover {
    background: rgba(0, 229, 204, 0.6);
}

/* Hero 右侧资讯面板 */
.hero-news-panel {
    width: 50%;
    min-height: 400px;
    background: linear-gradient(180deg, #001020 0%, #001830 100%);
    border-left: 1px solid rgba(0, 229, 204, 0.1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.hero-news-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px 14px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.hero-news-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: #00E5CC;
    margin: 0;
}

.hero-news-more {
    font-size: 12px;
    color: rgba(0,229,204,0.7);
    text-decoration: none;
    transition: color 0.2s;
}

.hero-news-more:hover {
    color: #00E5CC;
}

.hero-news-list {
    flex: 1;
    overflow-y: auto;
    padding: 0 24px 16px;
}

.hero-news-list::-webkit-scrollbar {
    width: 3px;
}

.hero-news-list::-webkit-scrollbar-thumb {
    background: rgba(0,229,204,0.15);
    border-radius: 3px;
}

.hero-news-item {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    text-decoration: none;
    transition: background 0.2s;
    cursor: pointer;
}

.hero-news-item:last-child {
    border-bottom: none;
}

.hero-news-item:hover h4 {
    color: #00E5CC;
}

.hero-news-tag {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(0,229,204,0.12);
    color: #00E5CC;
    font-size: 10px;
    font-weight: 600;
    border-radius: 3px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.hero-news-item h4 {
    font-size: 13px;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
    margin: 0 0 5px;
    line-height: 1.4;
    transition: color 0.2s;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.hero-news-item p {
    font-size: 12px;
    color: rgba(255,255,255,0.4);
    margin: 0 0 4px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.hero-news-time {
    font-size: 11px;
    color: rgba(255,255,255,0.25);
}

/* ========================================
   5. 通用区块样式
   ======================================== */

section {
    padding: 60px 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 28px;
    font-weight: 600;
    color: var(--primary-cyan);
    margin-bottom: 12px;
}

/* ========================================
   6. 平台实力
   ======================================== */

.platform-stats {
    background: var(--bg-dark);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--primary-cyan);
    box-shadow: 0 0 20px var(--border-glow);
}

.stat-icon {
    width: 56px;
    height: 56px;
}

.stat-icon svg {
    width: 100%;
    height: 100%;
}

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

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

.stat-arrow {
    color: var(--primary-cyan);
    font-size: 18px;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-cyan);
}

.stat-unit {
    font-size: 20px;
    font-weight: 500;
}

/* ========================================
   7. 智能推荐供应商
   ======================================== */

.supplier-section {
    background: var(--bg-dark);
    overflow: hidden;
}

.supplier-carousel {
    display: flex;
    align-items: center;
    gap: 16px;
    overflow: hidden;
}

.carousel-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    transition: var(--transition-normal);
    flex-shrink: 0;
}

.carousel-btn:hover {
    border-color: var(--primary-cyan);
    color: var(--primary-cyan);
}

.supplier-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    flex: 1;
    overflow: hidden;
}

.supplier-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    transition: var(--transition-normal);
    min-height: 220px;
    display: flex;
    flex-direction: column;
}

.supplier-card:hover {
    border-color: var(--primary-cyan);
    box-shadow: 0 0 20px var(--border-glow);
}

.supplier-avatar {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    background: linear-gradient(135deg, #00686B 0%, #004D4F 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.avatar-text {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.supplier-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-cyan);
    margin-bottom: 8px;
}

.supplier-tags {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
    line-height: 1.5;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-clamp: 2;
}

.supplier-location {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.supplier-rating {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.rating-score {
    color: var(--primary-cyan);
    font-weight: 600;
}

.supplier-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.badge {
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.badge-verified {
    background: rgba(0, 229, 204, 0.2);
    color: var(--primary-cyan);
    border: 1px solid var(--primary-cyan);
}

.badge-excellent {
    background: rgba(0, 229, 204, 0.2);
    color: var(--primary-cyan);
    border: 1px solid var(--primary-cyan);
}

.badge-rated {
    background: rgba(255, 217, 61, 0.2);
    color: var(--accent-yellow);
    border: 1px solid var(--accent-yellow);
}

/* ========================================
   8. 核心功能
   ======================================== */

.features-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    padding: 60px 24px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.feature-card:hover,
.feature-card.active {
    border-color: var(--primary-cyan);
    box-shadow: 0 8px 32px rgba(0, 229, 204, 0.12);
    transform: translateY(-4px);
}

.feature-card.active {
    background: linear-gradient(180deg, rgba(0, 229, 204, 0.1) 0%, transparent 100%);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-cyan);
    margin-bottom: 8px;
}

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

.feature-arrow {
    position: absolute;
    bottom: 24px;
    right: 24px;
    color: var(--primary-cyan);
    font-size: 20px;
    opacity: 0;
    transition: var(--transition-normal);
}

.feature-card.active .feature-arrow {
    opacity: 1;
}

/* ========================================
   9. 快速访问
   ======================================== */

.quick-access {
    background: var(--bg-dark);
    padding: 60px 24px;
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.quick-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 40px 24px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.quick-card:hover {
    border-color: var(--primary-cyan);
    box-shadow: 0 8px 32px rgba(0, 229, 204, 0.12);
    transform: translateY(-4px);
}

.quick-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
}

.quick-icon svg {
    width: 100%;
    height: 100%;
}

.quick-label {
    font-size: 16px;
    font-weight: 500;
    color: var(--primary-cyan);
}

/* ========================================
   9.5 电子拍卖场
   ======================================== */

.auction-section {
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    padding: 60px 24px;
    position: relative;
    overflow: hidden;
}

.auction-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 229, 204, 0.04) 0%, transparent 70%);
    pointer-events: none;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 0;
    margin-bottom: 40px;
}

.auction-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.auction-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 0;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.auction-card:hover {
    border-color: var(--primary-cyan);
    box-shadow: 0 8px 32px rgba(0, 229, 204, 0.12);
    transform: translateY(-4px);
}

.auction-card-header {
    padding: 16px 20px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.auction-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.auction-status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}

.auction-status.active {
    background: rgba(0, 229, 204, 0.12);
    color: var(--primary-cyan);
    border: 1px solid rgba(0, 229, 204, 0.3);
}

.auction-status.active::before {
    background: var(--primary-cyan);
    box-shadow: 0 0 6px var(--primary-cyan);
    animation: pulse-dot 2s ease-in-out infinite;
}

.auction-status.signup {
    background: rgba(139, 92, 246, 0.12);
    color: #A78BFA;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.auction-status.signup::before {
    background: #A78BFA;
}

.auction-status.pending {
    background: rgba(255, 217, 61, 0.12);
    color: var(--accent-yellow);
    border: 1px solid rgba(255, 217, 61, 0.3);
}

.auction-status.pending::before {
    background: var(--accent-yellow);
}

.auction-status.ended, .auction-status.completed {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}

.auction-status.ended::before, .auction-status.completed::before {
    background: var(--text-muted);
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.auction-card-body {
    padding: 16px 20px;
    flex: 1;
}

.auction-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.auction-company {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.auction-company::before {
    content: '';
    width: 12px;
    height: 12px;
    border-radius: 3px;
    background: rgba(0, 229, 204, 0.2);
    display: inline-block;
    flex-shrink: 0;
}

.auction-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

.auction-info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.auction-info-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.auction-info-value {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.auction-info-value.price {
    color: var(--accent-red);
    font-size: 16px;
    font-weight: 700;
}

.auction-info-value.price.lowest {
    color: var(--primary-cyan);
}

.auction-timer {
    background: rgba(0, 229, 204, 0.06);
    border: 1px solid rgba(0, 229, 204, 0.15);
    border-radius: 10px;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0;
}

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

.auction-timer-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-cyan);
    font-family: 'Courier New', monospace;
    letter-spacing: 1px;
}

.auction-extended {
    font-size: 11px;
    color: var(--accent-yellow);
    margin-left: 8px;
}

.auction-card-footer {
    padding: 12px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.auction-stats {
    display: flex;
    gap: 20px;
}

.auction-stat {
    display: flex;
    align-items: center;
    gap: 6px;
}

.auction-stat-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-cyan);
}

.auction-stat-label {
    font-size: 11px;
    color: var(--text-muted);
}

.auction-action-hint {
    margin-left: auto;
}

.auction-action-hint .hint-signup,
.auction-action-hint .hint-bid,
.auction-action-hint .hint-view {
    font-size: 12px;
    padding: 4px 14px;
    border-radius: 20px;
    font-weight: 500;
    transition: var(--transition-fast);
}

.auction-action-hint .hint-bid {
    background: rgba(0, 229, 204, 0.12);
    color: var(--primary-cyan);
    border: 1px solid rgba(0, 229, 204, 0.3);
}

.auction-action-hint .hint-signup {
    background: rgba(139, 92, 246, 0.12);
    color: #A78BFA;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.auction-action-hint .hint-view {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.auction-card:hover .hint-bid {
    background: var(--primary-cyan);
    color: #000;
}

.auction-card:hover .hint-signup {
    background: #8B5CF6;
    color: #fff;
}

.auction-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.auction-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.auction-loading .spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

.auction-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.auction-empty-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    opacity: 0.3;
}

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

@media (max-width: 1024px) {
    .auction-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .auction-grid {
        grid-template-columns: 1fr;
    }
    
    .auction-actions {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ========================================
   10. 行业资讯
   ======================================== */

.news-section {
    background: var(--bg-dark);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-normal);
}

.news-card:hover {
    border-color: var(--primary-cyan);
    box-shadow: 0 0 20px var(--border-glow);
}

.news-image {
    height: 180px;
    background: linear-gradient(135deg, #0D1117 0%, #1a2a3a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.news-placeholder {
    width: 80px;
    height: 80px;
    opacity: 0.5;
}

.news-placeholder svg {
    width: 100%;
    height: 100%;
}

.news-content {
    padding: 20px;
}

.news-date {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
    display: block;
}

.news-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.5;
}

.news-excerpt {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========================================
   11. 供应商分布地图
   ======================================== */

.map-section {
    background: var(--bg-dark);
    padding-bottom: 80px;
}

.map-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}

.world-map {
    height: 400px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-svg {
    width: 80%;
    height: 80%;
}

.continent {
    fill: none;
    stroke: rgba(0, 229, 204, 0.3);
    stroke-width: 2;
}

.map-dot {
    fill: var(--primary-cyan);
    animation: pulse 2s ease-in-out infinite;
}

.map-dot:nth-child(odd) {
    animation-delay: 0.5s;
}

.map-dot:nth-child(3n) {
    animation-delay: 1s;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
        r: 5;
    }
    50% {
        opacity: 1;
        r: 8;
    }
}

.map-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
}

.map-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-cyan);
    margin-bottom: 8px;
    text-shadow: 0 0 20px rgba(0, 229, 204, 0.5);
}

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

/* ========================================
   12. 页脚
   ======================================== */

.footer {
    background: #1a1a2e;
    padding: 40px 24px;
    text-align: center;
}

.footer-copyright {
    margin-bottom: 20px;
}

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

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.footer-nav a {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

/* ========================================
   13. 响应式设计
   ======================================== */

@media (max-width: 1200px) {
    .stats-container,
    .supplier-container,
    .features-grid,
    .quick-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid .news-card:last-child {
        grid-column: span 2;
    }
}

@media (max-width: 900px) {
    .header-container {
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .main-nav {
        order: 3;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .search-box {
        min-width: 200px;
    }
    
    .hero-title {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .stats-container,
    .supplier-container,
    .features-grid,
    .quick-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid .news-card:last-child {
        grid-column: span 1;
    }
    
    .carousel-btn {
        display: none;
    }
    
    .hero-section {
        height: auto;
        min-height: 280px;
    }

    .hero-news-row {
        flex-direction: column;
    }

    .hero-news-row .hero-section {
        width: 100%;
    }

    .hero-news-panel {
        width: 100%;
        min-height: auto;
        max-height: 360px;
        border-left: none;
        border-top: 1px solid rgba(0, 229, 204, 0.1);
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 22px;
        margin-bottom: 8px;
    }
    
    section {
        padding: 40px 16px;
    }
    
    .page-title-bar h1 {
        font-size: 18px;
        letter-spacing: 2px;
    }
    
    .footer-nav {
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .header-left {
        width: 100%;
        flex-direction: column;
    }
    
    .search-box {
        width: 100%;
    }
    
    .language-selector {
        align-self: flex-start;
    }
    
    .nav-link {
        padding: 6px 10px;
        font-size: 13px;
    }
    
    .hero-title {
        font-size: 24px;
    }
    
    .hero-subtitle {
        font-size: 14px;
        padding: 0 20px;
    }
    
    .btn-primary {
        padding: 12px 32px;
        font-size: 14px;
    }
    
    .stat-number {
        font-size: 28px;
    }
}

/* ========================================
   14. 动画效果
   ======================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-card,
.supplier-card,
.feature-card,
.quick-card,
.news-card {
    animation: fadeInUp 0.6s ease forwards;
}

.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }
.stat-card:nth-child(4) { animation-delay: 0.4s; }

.supplier-card:nth-child(1) { animation-delay: 0.1s; }
.supplier-card:nth-child(2) { animation-delay: 0.2s; }
.supplier-card:nth-child(3) { animation-delay: 0.3s; }
.supplier-card:nth-child(4) { animation-delay: 0.4s; }

/* 数字滚动动画 */
.stat-number[data-target] {
    transition: none;
}

/* 滚动显示动画 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   15. 用户菜单下拉
   ======================================== */

.user-menu {
    position: relative;
}

.user-menu-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.user-menu-trigger:hover {
    border-color: var(--primary-cyan);
}

.user-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-icon svg {
    width: 20px;
    height: 20px;
    color: var(--primary-cyan);
}

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

.user-level {
    font-size: 12px;
    color: var(--primary-cyan);
    padding: 2px 8px;
    background: rgba(0, 229, 204, 0.15);
    border-radius: 4px;
}

.user-menu-trigger .dropdown-arrow {
    font-size: 10px;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.user-menu:hover .user-menu-trigger .dropdown-arrow {
    transform: rotate(180deg);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    width: 240px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-normal);
    z-index: 1000;
    overflow: hidden;
}

.user-menu:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-section {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.dropdown-section:last-child {
    border-bottom: none;
}

.dropdown-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-cyan);
    margin-bottom: 12px;
}

.dropdown-item {
    display: block;
    padding: 10px 12px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    border-radius: 6px;
    transition: var(--transition-fast);
    margin-bottom: 4px;
}

.dropdown-item:last-child {
    margin-bottom: 0;
}

.dropdown-item:hover {
    background: rgba(0, 229, 204, 0.1);
    color: var(--primary-cyan);
}

.logout-item {
    color: var(--accent-red) !important;
}

.logout-item:hover {
    background: rgba(255, 107, 107, 0.1) !important;
}

/* 会员信息 */
.member-section {
    background: linear-gradient(135deg, rgba(0, 229, 204, 0.05) 0%, transparent 100%);
}

.member-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.member-level {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 4px 10px;
    background: var(--bg-darker);
    border-radius: 4px;
}

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

.member-progress {
    margin-bottom: 12px;
}

.progress-bar {
    height: 6px;
    background: var(--bg-darker);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 6px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-cyan) 0%, var(--primary-cyan-light) 100%);
    border-radius: 3px;
    transition: width 0.5s ease;
}

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

/* ========================================
   懒加载样式
   ======================================== */

/* 懒加载图片占位 */
img[data-lazy-src] {
    background: var(--bg-darker);
    min-height: 100px;
}

.lazy-loading {
    position: relative;
    overflow: hidden;
}

.lazy-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    100% { left: 100%; }
}

.lazy-loaded {
    animation: fadeIn 0.3s ease;
}

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

.lazy-error {
    background: var(--bg-darker);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

/* 懒加载组件加载中 */
.lazy-loading-spinner {
    width: 40px;
    height: 40px;
    margin: 40px auto;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.lazy-error-msg {
    text-align: center;
    padding: 40px;
    color: var(--accent-red);
}

/* Tab懒加载 */
.tab-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.tab-loading .spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 12px;
}

.tab-error {
    text-align: center;
    padding: 40px;
    color: var(--accent-red);
}

/* 无限滚动指示器 */
.infinite-scroll-indicator {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 14px;
}

.infinite-scroll-indicator .spinner-small {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    vertical-align: middle;
    margin-right: 8px;
}

/* ========================================
   NEW: Hero Banner - 首页第一屏
   ======================================== */

.hero-banner {
    position: relative;
    min-height: 560px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(160deg, #001020 0%, #001a30 30%, #002040 60%, #001428 100%);
    padding: 80px 24px 60px;
    max-width: none;
}

.hero-banner-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.hero-orb-1 {
    width: 600px;
    height: 600px;
    top: -200px;
    right: -100px;
    background: radial-gradient(circle, rgba(0, 229, 204, 0.12) 0%, transparent 70%);
    animation: orb-float 12s ease-in-out infinite;
}

.hero-orb-2 {
    width: 500px;
    height: 500px;
    bottom: -200px;
    left: -100px;
    background: radial-gradient(circle, rgba(69, 183, 209, 0.1) 0%, transparent 70%);
    animation: orb-float 15s ease-in-out infinite reverse;
}

@keyframes orb-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -20px) scale(1.05); }
    66% { transform: translate(-20px, 30px) scale(0.95); }
}

.hero-particles {
    position: absolute;
    inset: 0;
}

.hero-particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(0, 229, 204, 0.4);
    border-radius: 50%;
    animation: particle-rise linear infinite;
}

@keyframes particle-rise {
    0% { transform: translateY(0) scale(1); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-500px) scale(0); opacity: 0; }
}

.hero-banner-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
}

.hero-banner-title {
    font-size: 48px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
    line-height: 1.2;
    margin-bottom: 8px;
    text-shadow: 0 2px 40px rgba(0, 229, 204, 0.2);
}

.hero-banner-subtitle-cn {
    font-size: 28px;
    font-weight: 500;
    color: var(--primary-cyan);
    margin-bottom: 24px;
    letter-spacing: 6px;
}

.hero-banner-tagline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 6px;
}

.tagline-item {
    font-size: 16px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    letter-spacing: 0.5px;
}

.tagline-dot {
    width: 6px;
    height: 6px;
    background: var(--primary-cyan);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--primary-cyan);
}

.hero-banner-tagline-cn {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 40px;
    letter-spacing: 4px;
}

.hero-banner-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 48px;
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.hero-btn svg {
    flex-shrink: 0;
}

.hero-btn-en {
    font-size: 12px;
    opacity: 0.7;
    font-weight: 400;
}

.hero-btn-primary {
    background: linear-gradient(135deg, var(--primary-cyan) 0%, #00B8A3 100%);
    color: #001020;
    box-shadow: 0 4px 24px rgba(0, 229, 204, 0.35);
}

.hero-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 40px rgba(0, 229, 204, 0.5);
}

.hero-btn-secondary {
    background: rgba(0, 229, 204, 0.08);
    color: var(--primary-cyan);
    border: 1.5px solid rgba(0, 229, 204, 0.4);
}

.hero-btn-secondary:hover {
    background: rgba(0, 229, 204, 0.15);
    border-color: var(--primary-cyan);
    transform: translateY(-3px);
    box-shadow: 0 4px 24px rgba(0, 229, 204, 0.2);
}

.hero-stats-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    padding: 24px 48px;
    background: rgba(0, 229, 204, 0.04);
    border: 1px solid rgba(0, 229, 204, 0.1);
    border-radius: 16px;
    backdrop-filter: blur(10px);
}

.hero-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.hero-stat-num {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-cyan);
    font-variant-numeric: tabular-nums;
}

.hero-stat-num small {
    font-size: 16px;
    font-weight: 400;
    opacity: 0.6;
}

.hero-stat-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(0, 229, 204, 0.2);
}

/* ========================================
   NEW: 三大核心功能卡片
   ======================================== */

.core-features-section {
    padding: 80px 24px;
    max-width: 1400px;
    margin: 0 auto;
    background: var(--bg-dark);
}

.core-features-section .section-title {
    margin-bottom: 8px;
}

.core-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.core-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px 32px 32px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
    animation: fadeSlideUp 0.7s ease-out both;
}

.core-card:nth-child(2) { animation-delay: 0.15s; }
.core-card:nth-child(3) { animation-delay: 0.3s; }

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

.core-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: 20px 20px 0 0;
}

.core-card-match::before { background: linear-gradient(90deg, #FF6B6B, #FF8E8E); }
.core-card-auction::before { background: linear-gradient(90deg, #FFD93D, #FFE873); }
.core-card-monitor::before { background: linear-gradient(90deg, #4ECDC4, #7EDDD6); }

.core-card:hover {
    border-color: rgba(0, 229, 204, 0.4);
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 229, 204, 0.08);
}

.core-card-icon {
    width: 72px;
    height: 72px;
    margin-bottom: 20px;
}

.core-card-match .core-card-icon { color: #FF6B6B; }
.core-card-auction .core-card-icon { color: #FFD93D; }
.core-card-monitor .core-card-icon { color: #4ECDC4; }

.core-card-icon svg {
    width: 100%;
    height: 100%;
}

.core-card-badge {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.5;
}

.core-card-title {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
    line-height: 1.3;
}

.core-card-title-cn {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.core-card-list {
    list-style: none;
    padding: 0;
    margin: 0 0 28px;
}

.core-card-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.core-card-list li:last-child {
    border-bottom: none;
}

.core-card-list li svg {
    flex-shrink: 0;
    color: var(--primary-cyan);
}

.core-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.core-card-match .core-card-btn {
    background: rgba(255, 107, 107, 0.12);
    color: #FF6B6B;
    border: 1px solid rgba(255, 107, 107, 0.3);
}
.core-card-match .core-card-btn:hover {
    background: rgba(255, 107, 107, 0.2);
    box-shadow: 0 0 20px rgba(255, 107, 107, 0.2);
}

.core-card-auction .core-card-btn {
    background: rgba(255, 217, 61, 0.12);
    color: #FFD93D;
    border: 1px solid rgba(255, 217, 61, 0.3);
}
.core-card-auction .core-card-btn:hover {
    background: rgba(255, 217, 61, 0.2);
    box-shadow: 0 0 20px rgba(255, 217, 61, 0.2);
}

.core-card-monitor .core-card-btn {
    background: rgba(78, 205, 196, 0.12);
    color: #4ECDC4;
    border: 1px solid rgba(78, 205, 196, 0.3);
}
.core-card-monitor .core-card-btn:hover {
    background: rgba(78, 205, 196, 0.2);
    box-shadow: 0 0 20px rgba(78, 205, 196, 0.2);
}

.core-card-btn span {
    font-size: 12px;
    opacity: 0.7;
    font-weight: 400;
}

/* ========================================
   NEW: 智能匹配快捷使用区
   ======================================== */

.quick-match-section {
    padding: 80px 24px;
    max-width: none;
    background: linear-gradient(180deg, var(--bg-darker) 0%, #0d1520 50%, var(--bg-dark) 100%);
    position: relative;
}

.quick-match-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 229, 204, 0.04) 0%, transparent 60%);
    pointer-events: none;
}

.quick-match-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.quick-match-container.quick-match-centered {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.quick-match-centered .quick-match-info {
    max-width: 700px;
}

.quick-match-centered .quick-match-badges {
    justify-content: center;
}

.quick-match-cta {
    margin-top: 32px;
}

.quick-match-title {
    font-size: 40px;
    font-weight: 700;
    color: var(--primary-cyan);
    margin-bottom: 8px;
    line-height: 1;
}

.quick-match-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.quick-match-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 24px;
}

.quick-match-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.qm-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(0, 229, 204, 0.06);
    border: 1px solid rgba(0, 229, 204, 0.15);
    border-radius: 20px;
    font-size: 12px;
    color: var(--primary-cyan);
    font-weight: 500;
}

.quick-match-form-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 36px;
    position: relative;
    overflow: hidden;
}

.quick-match-form-wrap::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-cyan), #45B7D1, var(--primary-cyan));
}

.qm-field {
    margin-bottom: 20px;
}

.qm-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 0.3px;
}

.qm-field input {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 15px;
    font-family: var(--font-primary);
    transition: all 0.2s;
    outline: none;
}

.qm-field input:focus {
    border-color: var(--primary-cyan);
    background: rgba(0, 229, 204, 0.04);
    box-shadow: 0 0 0 3px rgba(0, 229, 204, 0.1);
}

.qm-field input::placeholder {
    color: var(--text-muted);
    font-size: 13px;
}

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

.qm-submit-btn {
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--primary-cyan) 0%, #00B8A3 100%);
    color: #001020;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    font-family: var(--font-primary);
    margin-top: 4px;
}

.qm-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 229, 204, 0.4);
}

.qm-submit-btn svg {
    flex-shrink: 0;
}

/* ========================================
   NEW: 电子反拍优势区
   ======================================== */

.auction-advantage-section {
    padding: 80px 24px;
    max-width: none;
    position: relative;
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0f1218 50%, var(--bg-dark) 100%);
}

.auction-advantage-section > .section-title,
.auction-advantage-section > .section-subtitle,
.auction-advantage-section > .advantage-cta {
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 48px;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.advantage-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 36px 28px;
    transition: all 0.3s ease;
    position: relative;
    animation: fadeSlideUp 0.7s ease-out both;
}

.advantage-card:nth-child(2) { animation-delay: 0.15s; }
.advantage-card:nth-child(3) { animation-delay: 0.3s; }

.advantage-card:hover {
    border-color: rgba(255, 217, 61, 0.4);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.advantage-num {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 48px;
    font-weight: 800;
    color: rgba(255, 217, 61, 0.08);
    line-height: 1;
}

.advantage-icon {
    color: var(--accent-yellow);
    margin-bottom: 20px;
}

.advantage-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 12px;
    line-height: 1.4;
}

.advantage-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
}

.advantage-cta {
    text-align: center;
}

/* ========================================
   NEW: 订单实时监控面板
   ======================================== */

.live-monitor-section {
    padding: 80px 24px;
    max-width: none;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.live-monitor-header {
    text-align: center;
    margin-bottom: 40px;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.live-monitor-title-wrap {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.live-dot {
    width: 10px;
    height: 10px;
    background: #FF6B6B;
    border-radius: 50%;
    box-shadow: 0 0 10px #FF6B6B;
    animation: pulse-dot 2s ease-in-out infinite;
}

.live-monitor-title-wrap h2 {
    font-size: 28px;
    font-weight: 600;
    color: #fff;
    margin: 0;
}

.live-badge {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(255, 107, 107, 0.15);
    color: #FF6B6B;
    font-size: 11px;
    font-weight: 700;
    border-radius: 4px;
    letter-spacing: 1px;
    border: 1px solid rgba(255, 107, 107, 0.3);
    animation: live-glow 2s ease-in-out infinite;
}

@keyframes live-glow {
    0%, 100% { box-shadow: 0 0 5px rgba(255, 107, 107, 0.2); }
    50% { box-shadow: 0 0 15px rgba(255, 107, 107, 0.4); }
}

.live-monitor-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    letter-spacing: 2px;
}

.live-monitor-panel {
    position: relative;
    height: 320px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 32px;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.live-monitor-scroll {
    padding: 16px 24px;
    height: 100%;
    overflow: hidden;
}

.live-monitor-overlay-top,
.live-monitor-overlay-bottom {
    position: absolute;
    left: 0;
    right: 0;
    height: 60px;
    pointer-events: none;
    z-index: 5;
}

.live-monitor-overlay-top {
    top: 0;
    background: linear-gradient(180deg, var(--bg-card) 0%, transparent 100%);
}

.live-monitor-overlay-bottom {
    bottom: 0;
    background: linear-gradient(0deg, var(--bg-card) 0%, transparent 100%);
}

.live-order-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    margin-bottom: 8px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 10px;
    transition: all 0.3s;
    animation: slide-in 0.5s ease-out;
}

@keyframes slide-in {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.live-order-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 16px;
}

.live-order-icon.production {
    background: rgba(78, 205, 196, 0.12);
    color: #4ECDC4;
}

.live-order-icon.shipping {
    background: rgba(69, 183, 209, 0.12);
    color: #45B7D1;
}

.live-order-icon.quality {
    background: rgba(255, 217, 61, 0.12);
    color: #FFD93D;
}

.live-order-icon.completed {
    background: rgba(0, 229, 204, 0.12);
    color: #00E5CC;
}

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

.live-order-id {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-cyan);
    margin-right: 8px;
    font-family: 'Courier New', monospace;
}

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

.live-order-time {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.live-order-progress {
    width: 80px;
    height: 6px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 3px;
    overflow: hidden;
    flex-shrink: 0;
}

.live-order-progress-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 1s ease;
}

.live-order-progress-fill.green { background: linear-gradient(90deg, #4ECDC4, #00E5CC); }
.live-order-progress-fill.blue { background: linear-gradient(90deg, #45B7D1, #5BC9E0); }
.live-order-progress-fill.yellow { background: linear-gradient(90deg, #FFD93D, #FFE873); }

.live-monitor-cta {
    text-align: center;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   NEW: 资讯 + 行业动态合并区
   ======================================== */

.news-insights-section {
    padding: 80px 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.news-insights-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.news-insights-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    max-height: 500px;
    display: flex;
    flex-direction: column;
}

.news-insights-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.news-insights-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: #00E5CC;
    margin: 0;
}

.news-insights-panel .hero-news-list {
    flex: 1;
    overflow-y: auto;
    padding: 0 24px 16px;
}

.news-insights-articles {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    max-height: 500px;
    display: flex;
    flex-direction: column;
}

.news-articles-list {
    flex: 1;
    overflow-y: auto;
    padding: 0 24px 16px;
}

.news-articles-list::-webkit-scrollbar {
    width: 3px;
}

.news-articles-list::-webkit-scrollbar-thumb {
    background: rgba(0, 229, 204, 0.15);
    border-radius: 3px;
}

.news-article-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    text-decoration: none;
    transition: all 0.2s;
}

.news-article-item:last-child {
    border-bottom: none;
}

.news-article-item:hover h4 {
    color: var(--primary-cyan);
}

.news-article-icon {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    border-radius: 10px;
    background: rgba(0, 229, 204, 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
}

.news-article-icon svg {
    width: 40px;
    height: 40px;
}

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

.news-article-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 6px;
    line-height: 1.4;
    transition: color 0.2s;
}

.news-article-info p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    margin: 0 0 4px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-article-date {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.25);
}

/* ========================================
   NEW: 响应式 - 新首页区域
   ======================================== */

@media (max-width: 1200px) {
    .core-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .news-insights-grid {
        grid-template-columns: 1fr;
    }

    .hero-banner-title {
        font-size: 38px;
    }

    .hero-banner-subtitle-cn {
        font-size: 22px;
        letter-spacing: 4px;
    }

    .hero-stats-row {
        gap: 24px;
        padding: 20px 32px;
    }
}

@media (max-width: 900px) {
    .hero-banner {
        min-height: 440px;
        padding: 60px 20px 48px;
    }

    .hero-banner-title {
        font-size: 30px;
    }

    .hero-banner-subtitle-cn {
        font-size: 18px;
        letter-spacing: 3px;
    }

    .hero-banner-tagline {
        gap: 10px;
    }

    .tagline-item {
        font-size: 13px;
    }

    .hero-banner-actions {
        flex-direction: column;
        gap: 14px;
        margin-bottom: 32px;
    }

    .hero-btn {
        padding: 14px 28px;
        font-size: 14px;
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .hero-stats-row {
        flex-wrap: wrap;
        gap: 16px;
        padding: 16px 20px;
    }

    .hero-stat-divider {
        display: none;
    }

    .hero-stat-item {
        flex: 1;
        min-width: 80px;
    }

    .hero-stat-num {
        font-size: 22px;
    }

    .core-features-section {
        padding: 48px 16px;
    }

    .core-features-grid {
        gap: 16px;
    }

    .core-card {
        padding: 28px 20px 24px;
    }

    .quick-match-section {
        padding: 48px 16px;
    }

    .quick-match-title {
        font-size: 28px;
    }

    .auction-advantage-section {
        padding: 48px 16px;
    }

    .advantage-grid {
        gap: 16px;
    }

    .live-monitor-section {
        padding: 48px 16px;
    }

    .live-monitor-title-wrap h2 {
        font-size: 22px;
    }

    .news-insights-section {
        padding: 48px 16px;
    }
}

@media (max-width: 768px) {
    .hero-banner {
        min-height: 380px;
        padding: 48px 16px 40px;
    }

    .hero-banner-title {
        font-size: 24px;
    }

    .hero-banner-subtitle-cn {
        font-size: 16px;
        letter-spacing: 2px;
        margin-bottom: 16px;
    }

    .hero-banner-tagline-cn {
        font-size: 12px;
        letter-spacing: 2px;
        margin-bottom: 24px;
    }

    .hero-stats-row {
        border-radius: 12px;
    }

    .hero-stat-num {
        font-size: 20px;
    }

    .hero-stat-label {
        font-size: 10px;
    }

    .core-features-grid {
        grid-template-columns: 1fr;
    }

    .core-card {
        border-radius: 14px;
    }

    .core-card-icon {
        width: 56px;
        height: 56px;
    }

    .core-card-title {
        font-size: 18px;
    }

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

    .quick-match-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .quick-match-title {
        font-size: 24px;
    }

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

    .advantage-card {
        padding: 28px 20px;
    }

    .live-monitor-panel {
        height: 260px;
        border-radius: 12px;
    }

    .live-order-progress {
        display: none;
    }

    .live-order-item {
        gap: 10px;
        padding: 10px 12px;
    }

    .live-order-icon {
        width: 30px;
        height: 30px;
        font-size: 14px;
    }

    .live-order-id {
        font-size: 11px;
    }

    .live-order-text {
        font-size: 12px;
    }

    .live-order-time {
        font-size: 10px;
    }

    .news-insights-grid {
        grid-template-columns: 1fr;
    }

    .news-insights-panel,
    .news-insights-articles {
        max-height: 360px;
    }
}

@media (max-width: 480px) {
    .hero-banner {
        min-height: 340px;
        padding: 36px 12px 32px;
    }

    .hero-banner-title {
        font-size: 20px;
    }

    .hero-banner-subtitle-cn {
        font-size: 14px;
        letter-spacing: 1px;
    }

    .hero-banner-tagline {
        flex-wrap: wrap;
        justify-content: center;
    }

    .tagline-item {
        font-size: 12px;
    }

    .hero-banner-actions {
        margin-bottom: 24px;
    }

    .hero-btn {
        padding: 12px 20px;
        font-size: 13px;
    }

    .hero-stats-row {
        padding: 12px 16px;
        gap: 12px;
    }

    .core-features-section {
        padding: 36px 12px;
    }

    .core-card {
        padding: 24px 16px 20px;
    }

    .core-card-list li {
        font-size: 13px;
        padding: 6px 0;
    }

    .quick-match-section,
    .auction-advantage-section,
    .live-monitor-section,
    .news-insights-section {
        padding: 36px 12px;
    }

    .live-monitor-panel {
        height: 220px;
    }

    .live-monitor-scroll {
        padding: 12px 14px;
    }
}