/* ============================================
   企业综合信息平台 - 全新高端风格 v2.0
   移动端优先 · 免费元素高亮 · 企业级品质
   ============================================ */

/* === 1. CSS 变量 === */
:root {
    --primary: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --accent: #0ea5e9;
    --success: #059669;
    --warning: #d97706;
    --danger: #dc2626;
    /* 免费专用金色 */
    --gold: #f59e0b;
    --gold-dark: #d97706;
    --gold-light: #fbbf24;
    --gold-gradient: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
    --gold-soft: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    /* 主渐变 - 亮蓝色系 */
    --hero-gradient: linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #3b82f6 100%);
    --card-gradient: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    /* 灰色系 */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    /* 阴影系统 - 更丰富的层次感 */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-md: 0 10px 15px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.04);
    --shadow-lg: 0 20px 25px rgba(0,0,0,0.1), 0 8px 10px rgba(0,0,0,0.05);
    --shadow-xl: 0 25px 50px rgba(0,0,0,0.15);
    --radius: 10px;
    --radius-sm: 6px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --header-height: 60px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === 2. 基础重置 & 排版 === */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--gray-700);
    background: #f0f4f8;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* === 3. 免费元素高亮系统 === */
/* 免费按钮 */
.btn-free {
    background: var(--gold-gradient) !important;
    color: #fff !important;
    font-weight: 700 !important;
    box-shadow: 0 4px 14px rgba(245,158,11,0.35);
    position: relative;
    overflow: hidden;
}
.btn-free::after {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 60%);
    animation: freeShine 2s ease-in-out infinite;
}
.btn-free:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 6px 20px rgba(245,158,11,0.5);
    color: #fff !important;
}
@keyframes freeShine {
    0%, 100% { transform: translate(-30%, -30%) rotate(0deg); opacity: 0; }
    50% { transform: translate(30%, 30%) rotate(180deg); opacity: 1; }
}
/* 免费徽章 */
.free-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--gold-gradient);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(245,158,11,0.3);
    animation: freePulse 2s ease-in-out infinite;
}
@keyframes freePulse {
    0%, 100% { box-shadow: 0 2px 8px rgba(245,158,11,0.3); }
    50% { box-shadow: 0 4px 16px rgba(245,158,11,0.5); }
}
/* 免费高亮区 */
.free-highlight {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 50%, #fde68a 100%);
    border: 2px solid var(--gold);
    border-radius: var(--radius-lg);
    padding: 20px;
    position: relative;
}
.free-highlight::before {
    content: '免费';
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--gold-gradient);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 20px;
    letter-spacing: 1px;
}

/* === 4. 按钮系统 === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: 0.3px;
}
.btn i { font-size: 14px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 2px 8px rgba(30,58,95,0.25); }
.btn-primary:hover { background: var(--primary-light); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(30,58,95,0.35); }
.btn-secondary { background: var(--gray-200); color: var(--gray-700); }
.btn-secondary:hover { background: var(--gray-300); }
.btn-success { background: var(--success); color: #fff; box-shadow: 0 2px 8px rgba(5,150,105,0.25); }
.btn-success:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(5,150,105,0.35); }
.btn-warning { background: var(--warning); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-info { background: var(--accent); color: #fff; }
.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-block { width: 100%; }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-sm i { font-size: 12px; }
.btn-lg { padding: 14px 28px; font-size: 16px; border-radius: var(--radius-lg); }
.btn-lg i { font-size: 16px; }
.btn-xl { padding: 16px 36px; font-size: 18px; border-radius: var(--radius-lg); }

/* === 5. 头部导航 === */
.header {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    background: var(--hero-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
    letter-spacing: -0.5px;
}
.logo i { 
    font-size: 24px;
    background: var(--hero-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
/* 桌面导航默认隐藏（移动端优先），768px 以上显示 */
.nav { display: none; }
.nav a {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 12px;
    border-radius: var(--radius);
    color: var(--gray-600);
    font-weight: 500;
    font-size: 13px;
    transition: var(--transition);
    white-space: nowrap;
}
.nav a i { font-size: 13px; }
.nav a:hover { background: var(--gray-100); color: var(--primary); }
.nav a.active { background: var(--primary); color: #fff; }
/* 导航中的免费注册 */
.nav .btn-free {
    padding: 8px 16px !important;
    font-size: 13px !important;
    border-radius: var(--radius) !important;
    margin-left: 4px;
}
.nav .btn-free i { font-size: 13px; }
.admin-btn { background: var(--warning) !important; color: #fff !important; }
.logout-btn { color: var(--danger) !important; }

/* 移动端导航按钮 */
.mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray-700);
    padding: 8px;
    width: 40px;
    height: 40px;
}
@media (min-width: 768px) {
    .mobile-toggle { display: none; }
}

/* 移动端菜单 */
.mobile-menu {
    display: flex;
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    justify-content: flex-start;
}
.mobile-menu.show {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}
.mobile-menu-inner {
    background: #fff;
    width: 85%;
    max-width: 320px;
    height: 100%;
    overflow-y: auto;
    padding: 60px 16px 40px;
    position: relative;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}
.mobile-menu.show .mobile-menu-inner { transform: translateX(0); }
.mobile-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 12px;
    color: var(--gray-700);
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius);
    transition: var(--transition);
}
.mobile-menu a i { width: 24px; color: var(--primary); font-size: 16px; text-align: center; }
.mobile-menu a:hover { background: var(--gray-50); color: var(--primary); }
.mobile-menu a.active { background: var(--primary); color: #fff; }
.mobile-menu a.active i { color: #fff; }
.mobile-menu .btn-free { background: var(--gold-gradient) !important; color: #fff !important; }
.mobile-menu .btn-free i { color: #fff !important; }
.mobile-menu a.login-btn { background: var(--primary); color: #fff; }
.mobile-menu a.login-btn i { color: #fff; }
.mobile-menu a.admin-btn { background: var(--warning) !important; color: #fff !important; }
.mobile-menu a.admin-btn i { color: #fff; }
.mobile-menu a.logout-btn { color: var(--danger) !important; }
.mobile-menu a.logout-btn i { color: var(--danger); }
.mobile-menu-divider { height: 1px; background: var(--gray-200); margin: 8px 0; }
.mobile-menu-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    background: var(--gray-100);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    z-index: 10;
}
.mobile-menu-close:hover { background: var(--gray-200); }

/* === 6. 主内容区 === */
.main-content { min-height: calc(100vh - 180px); padding: 24px 0; }

/* === 7. Hero 区域 === */
.hero-section {
    background: var(--hero-gradient);
    color: #fff;
    padding: 48px 20px 40px;
    margin-bottom: 28px;
    border-radius: 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 50%, rgba(59,130,246,0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 50%, rgba(99,102,241,0.1) 0%, transparent 60%);
    pointer-events: none;
}
.hero-section > .container { position: relative; z-index: 1; }
.hero-section h1 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}
.hero-section h1 i { margin-right: 8px; opacity: 0.9; }
.hero-section p {
    font-size: 15px;
    opacity: 0.85;
    margin-bottom: 24px;
    font-weight: 400;
}
.hero-search {
    display: flex;
    gap: 8px;
    max-width: 100%;
    margin: 0 auto;
}
.hero-search input {
    flex: 1;
    padding: 14px 18px;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 15px;
    background: rgba(255,255,255,0.15);
    color: #fff;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.15);
    transition: var(--transition);
}
.hero-search input::placeholder { color: rgba(255,255,255,0.5); }
.hero-search input:focus { outline: none; background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.3); }
.hero-search .btn { padding: 14px 24px; white-space: nowrap; border-radius: var(--radius-lg); }
.hero-actions { display: flex; flex-direction: column; gap: 16px; align-items: center; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.hero-btns .btn-lg { font-size: 16px; font-weight: 700; }

/* === 8. 统计栏 === */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 24px;
}
.stat-card {
    background: #fff;
    padding: 16px 12px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    border: 1px solid var(--gray-100);
}
.stat-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    color: #fff;
}
.stat-icon:nth-child(1) { background: var(--primary); }
.stat-info { flex: 1; text-align: left; }
.stat-info h3 { font-size: 22px; font-weight: 800; color: var(--gray-900); line-height: 1.2; }
.stat-info p { color: var(--gray-500); font-size: 12px; font-weight: 500; }

/* === 9. 区域标题 === */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}
.section-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 8px;
}
.section-header h2 i { color: var(--accent); font-size: 20px; }
.more-link { font-size: 13px; color: var(--gray-500); font-weight: 500; display: flex; align-items: center; gap: 4px; }
.more-link:hover { color: var(--accent); }
.section-links { display: flex; align-items: center; gap: 10px; }
.module-section { margin-bottom: 32px; }

/* === 10. 固定广告位 === */
.fixed-ads-section { margin-bottom: 24px; }
.fixed-ads-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}
.fixed-ad-item {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    aspect-ratio: 16 / 10;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--gray-100);
}
.fixed-ad-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.fixed-ad-item img { width: 100%; height: 100%; object-fit: contain; padding: 8px; }
.ad-placeholder { text-align: center; color: var(--gray-400); padding: 16px; }
.ad-placeholder i { font-size: 28px; margin-bottom: 8px; display: block; color: var(--gray-300); }
.ad-placeholder span { font-size: 12px; }

/* === 11. 信息分类入口 === */
.info-category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 16px;
}
.info-category-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 16px 10px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--gray-100);
}
.info-category-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--accent); }
.info-category-card i { font-size: 26px; color: var(--accent); transition: var(--transition); }
.info-category-card:hover i { transform: scale(1.15); }
.info-category-card span { font-size: 12px; font-weight: 600; color: var(--gray-700); }

/* === 12. 信息列表迷你 === */
.info-list-mini { display: flex; flex-direction: column; gap: 10px; }
.info-list-item {
    display: flex;
    gap: 14px;
    background: #fff;
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    align-items: flex-start;
    border: 1px solid var(--gray-100);
}
.info-list-item:hover { box-shadow: var(--shadow); transform: translateX(2px); border-left: 3px solid var(--accent); }
.info-list-thumb {
    width: 80px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
    background: var(--gray-100);
}
.info-list-thumb img { width: 100%; height: 100%; object-fit: cover; }
.info-list-content { flex: 1; min-width: 0; }
.list-item-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.list-cat-tag { background: var(--accent); color: #fff; font-size: 11px; padding: 3px 10px; border-radius: 12px; font-weight: 500; }
.list-item-date { font-size: 11px; color: var(--gray-400); }
.info-list-content h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.info-list-content p {
    font-size: 12px;
    color: var(--gray-500);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* === 13. 行业人脉卡片 === */
.contact-cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}
.contact-mini-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 16px 12px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--gray-100);
}
.contact-mini-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--accent); }
.contact-mini-logo {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--card-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.contact-mini-logo img { width: 100%; height: 100%; object-fit: cover; }
.contact-mini-logo i { font-size: 24px; color: rgba(255,255,255,0.7); }
.contact-mini-info h4 { font-size: 13px; font-weight: 600; color: var(--gray-800); }
.contact-mini-info .industry-tag {
    display: inline-block;
    background: var(--gray-100);
    color: var(--gray-500);
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 10px;
    margin-top: 4px;
    font-weight: 500;
}

/* 人脉列表卡片 */
.contact-list-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 16px;
}
.contact-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--gray-100);
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.contact-card-logo {
    height: 160px;
    background: var(--card-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.contact-card-logo img { width: 100%; height: 100%; object-fit: cover; }
.cc-logo-placeholder { font-size: 48px; color: rgba(255,255,255,0.5); }
.contact-card-body { padding: 16px; }
.cc-industry-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--gray-100);
    color: var(--gray-600);
    font-size: 11px;
    padding: 4px 12px;
    border-radius: 14px;
    margin-bottom: 10px;
    font-weight: 500;
}
.cc-name { font-size: 16px; font-weight: 700; color: var(--gray-900); margin-bottom: 8px; }
.cc-products, .cc-contact { font-size: 12px; color: var(--gray-500); margin-bottom: 4px; display: flex; align-items: center; gap: 4px; }
.contact-card-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 11px;
    color: var(--gray-400);
}

/* 外贸采购模块 */
.trade-list { display: flex; flex-direction: column; gap: 12px; }
.trade-card {
    display: block;
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    color: inherit;
    text-decoration: none;
}
.trade-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.trade-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.trade-card-header h3 { font-size: 16px; font-weight: 700; color: var(--gray-800); flex: 1; }
.trade-date { font-size: 12px; color: var(--gray-400); white-space: nowrap; }
.trade-card-desc { font-size: 13px; color: var(--gray-500); line-height: 1.6; margin-bottom: 12px; }
.trade-card-footer { display: flex; gap: 16px; font-size: 12px; color: var(--gray-400); }
.trade-card-footer i { margin-right: 3px; }

/* 外贸采购详情 */
.trade-detail-box { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.trade-detail-header { padding: 28px 24px; background: var(--card-gradient); color: #fff; }
.trade-detail-header h1 { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.trade-detail-meta { display: flex; gap: 20px; font-size: 13px; opacity: 0.85; }
.trade-detail-body { padding: 24px; }
.trade-detail-body h3 { font-size: 16px; font-weight: 700; color: var(--gray-800); margin-bottom: 12px; }
.trade-content { background: var(--gray-50); padding: 20px; border-radius: var(--radius); line-height: 1.8; color: var(--gray-700); font-size: 14px; margin-bottom: 20px; }
.trade-contact-locked {
    text-align: center;
    padding: 30px;
    background: var(--gray-50);
    border-radius: var(--radius);
    border: 1px dashed var(--gray-300);
}
.trade-contact-locked i { font-size: 36px; color: var(--gray-400); display: block; margin-bottom: 12px; }
.trade-contact-locked p { color: var(--gray-500); font-size: 14px; margin-bottom: 6px; }
.trade-contact-hint { font-size: 12px !important; color: var(--gray-400) !important; }

/* 人脉详情 */
.contact-detail-box { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.contact-detail-header { padding: 28px 24px; background: var(--card-gradient); color: #fff; }
.cd-company { display: flex; align-items: center; gap: 16px; }
.cd-logo {
    width: 72px; height: 72px;
    border-radius: var(--radius);
    background: rgba(255,255,255,0.15);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden; flex-shrink: 0;
}
.cd-logo img { width: 100%; height: 100%; object-fit: cover; }
.cd-logo i { font-size: 32px; color: rgba(255,255,255,0.6); }
.cd-company-info h1 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.cd-industry-badge { display: inline-flex; align-items: center; gap: 4px; background: rgba(255,255,255,0.2); padding: 4px 12px; border-radius: 20px; font-size: 12px; margin-bottom: 8px; }
.cd-meta { display: flex; gap: 14px; font-size: 12px; opacity: 0.8; }
.contact-detail-body { padding: 20px; }
.cd-section { margin-bottom: 24px; }
.cd-section h3 { font-size: 16px; font-weight: 700; color: var(--gray-900); margin-bottom: 12px; padding-bottom: 8px; border-bottom: 2px solid var(--gray-100); }
.cd-section h3 i { color: var(--accent); margin-right: 6px; }
.cd-text { color: var(--gray-600); line-height: 1.8; font-size: 14px; }
.cd-contact-section { background: var(--gray-50); padding: 16px; border-radius: var(--radius); }
.cd-contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.cd-contact-item { display: flex; align-items: flex-start; gap: 10px; padding: 12px; background: #fff; border-radius: var(--radius-sm); }
.cd-contact-item > i { font-size: 18px; color: var(--accent); margin-top: 2px; width: 20px; text-align: center; }
.cd-label { display: block; font-size: 11px; color: var(--gray-400); margin-bottom: 2px; }
.cd-value { font-weight: 600; font-size: 14px; color: var(--gray-800); }

/* === 14. 定制需求模块 === */
.demand-modules-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}
.demand-module-card {
    background: #fff;
    padding: 28px 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--gray-100);
    border-top: 3px solid transparent;
    display: flex; flex-direction: column; align-items: center;
}
.demand-module-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-top-color: var(--accent); }
.dm-icon {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: var(--card-gradient);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 16px;
    font-size: 28px; color: #fff;
}
.demand-module-card h3 { font-size: 17px; font-weight: 700; color: var(--gray-900); margin-bottom: 10px; }
.demand-module-card p { font-size: 13px; color: var(--gray-500); line-height: 1.6; margin-bottom: 16px; }
.dm-btn {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--primary); color: #fff;
    padding: 8px 22px; border-radius: 20px;
    font-size: 13px; font-weight: 600;
    transition: var(--transition);
}
.dm-btn:hover { background: var(--primary-light); transform: scale(1.03); }

/* 需求页面 */
.demand-tabs {
    display: flex; flex-direction: column;
    margin-bottom: 16px;
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.demand-tab {
    flex: 1;
    padding: 14px 16px;
    text-align: center;
    color: var(--gray-600);
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
    display: flex; align-items: center; justify-content: center; gap: 8px;
}
.demand-tab i { font-size: 16px; }
.demand-tab:hover { background: var(--gray-50); color: var(--primary); }
.demand-tab.active { background: var(--primary); color: #fff; border-bottom-color: var(--accent); }
.demand-intro {
    display: flex; flex-direction: column;
    align-items: center; text-align: center;
    gap: 14px;
    background: #fff;
    padding: 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 16px;
}
.demand-intro-icon {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: var(--card-gradient);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; font-size: 28px; color: #fff;
}
.demand-intro-text h2 { font-size: 18px; font-weight: 700; color: var(--gray-900); margin-bottom: 6px; }
.demand-intro-text p { color: var(--gray-500); font-size: 13px; }
.demand-form-box { background: #fff; padding: 20px; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.demand-form-box h3 { font-size: 16px; font-weight: 700; color: var(--gray-900); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--gray-100); }
.demand-guarantee {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 24px;
}
.guarantee-item {
    background: #fff;
    padding: 20px 16px;
    text-align: center;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
}
.guarantee-item i { font-size: 28px; color: var(--accent); margin-bottom: 10px; display: block; }
.guarantee-item h4 { font-size: 14px; font-weight: 700; color: var(--gray-900); margin-bottom: 4px; }
.guarantee-item p { font-size: 12px; color: var(--gray-500); }

/* === 15. 注册CTA === */
.register-cta {
    background: var(--gold-gradient);
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
}
.register-cta::after {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 60%);
    animation: ctaShine 3s ease-in-out infinite;
    pointer-events: none;
}
@keyframes ctaShine {
    0%, 100% { transform: translate(-30%, -30%); }
    50% { transform: translate(30%, 30%); }
}
.register-cta-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 28px 20px;
    gap: 16px;
    position: relative;
    z-index: 1;
}
.cta-text h2 { color: #fff; font-size: 20px; font-weight: 800; margin-bottom: 6px; }
.cta-text p { color: rgba(255,255,255,0.9); font-size: 14px; line-height: 1.6; }
.register-cta .btn {
    background: #fff;
    color: var(--gold-dark);
    font-weight: 800;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
    white-space: nowrap;
}
.register-cta .btn:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 12px 30px rgba(0,0,0,0.25); }

/* === 16. 信息列表页 === */
.info-search-box {
    background: var(--hero-gradient);
    padding: 16px;
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
}
.search-box-inner {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.15);
    padding: 10px 14px;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.15);
}
.search-box-inner > i { color: rgba(255,255,255,0.6); font-size: 16px; }
.search-form-inline { display: flex; flex: 1; gap: 8px; flex-direction: row; }
.search-form-inline input {
    flex: 1; border: none; padding: 8px;
    font-size: 14px; outline: none;
    background: transparent; color: #fff;
}
.search-form-inline input::placeholder { color: rgba(255,255,255,0.5); }
.search-form-inline .btn { white-space: nowrap; }
.info-page { display: grid; grid-template-columns: 1fr; gap: 16px; padding: 12px 0; }
.info-sidebar { display: none; }
.info-sidebar .btn-block { width: 100%; margin-top: 16px; display: flex; justify-content: center; }
.info-content { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); overflow: hidden; }

/* === 16b. 侧边栏分类折叠 === */
.category-collapse-card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 1px solid var(--gray-100);
}
.collapse-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    font-size: 15px;
    font-weight: 700;
    color: var(--gray-800);
    cursor: pointer;
    user-select: none;
    background: var(--gray-50);
    transition: var(--transition);
}
.collapse-header:hover { background: var(--gray-100); }
.collapse-header i { color: var(--accent); }
.collapse-header .fa-chevron-down {
    transition: transform 0.3s ease;
    font-size: 13px;
    color: var(--gray-400);
}
.collapse-header.open .fa-chevron-down { transform: rotate(180deg); }
.collapse-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}
.collapse-body.show { max-height: 800px; }
.category-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    font-size: 13px;
    color: var(--gray-600);
    transition: var(--transition);
    border-left: 3px solid transparent;
}
.category-item:hover { background: var(--gray-50); color: var(--primary); }
.category-item.active {
    background: #eff6ff;
    color: var(--primary);
    font-weight: 600;
    border-left-color: var(--primary);
}
.category-item i { width: 18px; text-align: center; font-size: 14px; }
.category-item .count {
    margin-left: auto;
    background: var(--gray-100);
    color: var(--gray-500);
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 500;
}
.category-item.active .count { background: #dbeafe; color: var(--primary); }
.sidebar-publish-box {
    margin-top: 16px;
    text-align: center;
}
.info-header-bar {
    display: flex; flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 16px;
    border-bottom: 1px solid var(--gray-100);
    background: var(--gray-50);
}
.header-title { display: flex; align-items: center; gap: 8px; }
.header-title i { color: var(--accent); font-size: 18px; }
.header-title h1 { font-size: 18px; font-weight: 700; color: var(--gray-900); }
.header-title .total-count { background: var(--gray-200); padding: 4px 10px; border-radius: 12px; font-size: 12px; color: var(--gray-600); font-weight: 500; }
.info-header-bar .btn { width: 100%; justify-content: center; }

.mobile-category-filter { display: block; padding: 12px 16px; background: #fff; border-bottom: 1px solid var(--gray-100); overflow-x: auto; }
.filter-scroll { display: flex; gap: 8px; white-space: nowrap; }
.filter-tag { display: inline-block; padding: 6px 14px; background: var(--gray-100); border-radius: 20px; font-size: 12px; color: var(--gray-600); transition: var(--transition); font-weight: 500; }
.filter-tag:hover { background: var(--gray-200); }
.filter-tag.active { background: var(--accent); color: #fff; }

.info-list-grid { display: grid; grid-template-columns: 1fr; gap: 14px; padding: 16px; }
.info-item {
    background: #fff; border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow-sm); cursor: pointer;
    transition: var(--transition); border: 1px solid var(--gray-100);
}
.info-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--accent); }
.info-item-cover { height: 160px; overflow: hidden; }
.info-item-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s; }
.info-item:hover .info-item-cover img { transform: scale(1.05); }
.info-item-cover-placeholder {
    width: 100%;
    height: 100%;
    background: var(--card-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.5);
    font-size: 42px;
}
.info-item-body { padding: 14px; }
.info-item-tag { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.info-item-tag .tag { background: var(--accent); color: #fff; padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 500; }
.info-item-tag .tag-top { background: var(--warning); color: #fff; padding: 3px 8px; border-radius: 12px; font-size: 11px; }
.info-item-title { font-size: 15px; font-weight: 700; color: var(--gray-900); margin-bottom: 8px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.info-item-desc { font-size: 12px; color: var(--gray-500); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
.info-item-meta { display: flex; align-items: center; gap: 12px; font-size: 11px; color: var(--gray-400); }

/* === 17. 详情页 === */
.detail-page { max-width: 800px; margin: 0 auto; }
.breadcrumb { padding: 12px 0; font-size: 13px; color: var(--gray-500); flex-wrap: wrap; }
.breadcrumb a { color: var(--gray-500); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { margin: 0 4px; font-size: 10px; }
.detail-box { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow); overflow: hidden; }
.detail-header { padding: 24px; background: var(--card-gradient); color: #fff; }
.detail-header .category-tag { background: rgba(255,255,255,0.2); padding: 4px 12px; border-radius: 20px; font-size: 12px; margin-bottom: 10px; display: inline-block; font-weight: 500; }
.detail-header h1 { font-size: 20px; font-weight: 700; margin-bottom: 12px; line-height: 1.4; }
.detail-meta { display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; opacity: 0.85; }
.detail-meta span { display: flex; align-items: center; gap: 4px; }
.detail-body { padding: 20px; }
.detail-body h3 { font-size: 16px; font-weight: 700; color: var(--gray-900); margin-bottom: 12px; }
.detail-body h3 i { color: var(--accent); margin-right: 6px; }
.content-text { line-height: 1.8; color: var(--gray-600); font-size: 14px; }
.contact-box { background: var(--gray-50); padding: 20px; border-top: 1px solid var(--gray-200); }
.contact-box h3 { font-size: 16px; font-weight: 700; margin-bottom: 12px; }
.contact-box h3 i { color: var(--accent); margin-right: 6px; }
.contact-info { display: grid; grid-template-columns: 1fr; gap: 10px; }
.contact-item { background: #fff; padding: 14px; border-radius: var(--radius); display: flex; align-items: flex-start; gap: 10px; border: 1px solid var(--gray-100); }
.contact-item i { font-size: 20px; color: var(--accent); margin-top: 2px; }
.contact-item .label { font-size: 11px; color: var(--gray-400); margin-bottom: 2px; }
.contact-item .value { font-weight: 600; font-size: 14px; color: var(--gray-800); }

/* 图片画廊 */
.detail-images { padding: 0 20px 20px; border-bottom: 1px solid var(--gray-100); }
.detail-images h3 { font-size: 15px; font-weight: 700; margin-bottom: 12px; color: var(--gray-800); }
.image-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
.gallery-item { border-radius: var(--radius); overflow: hidden; cursor: pointer; position: relative; aspect-ratio: 4/3; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s; }
.gallery-item:hover img { transform: scale(1.05); }
.gallery-item::after { content: ''; position: absolute; inset: 0; background: rgba(0,0,0,0); transition: background 0.3s; }
.gallery-item:hover::after { background: rgba(0,0,0,0.1); }
.lightbox { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.92); z-index: 3000; align-items: center; justify-content: center; padding: 20px; cursor: pointer; }
.lightbox img { max-width: 95vw; max-height: 95vh; object-fit: contain; cursor: default; }
.lightbox-close { position: absolute; top: 20px; right: 24px; font-size: 32px; color: #fff; cursor: pointer; z-index: 3001; }

/* === 18. 登录/注册页 === */
.auth-page {
    background: var(--hero-gradient);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.auth-container { width: 100%; max-width: 420px; }
.auth-box {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 32px 24px;
    box-shadow: var(--shadow-xl);
}
.auth-header { text-align: center; margin-bottom: 24px; }
.auth-header i { font-size: 44px; background: var(--hero-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 12px; display: inline-block; }
.auth-header h1 { font-size: 22px; font-weight: 800; color: var(--gray-900); margin-bottom: 6px; }
.auth-header p { color: var(--gray-500); font-size: 13px; }
.auth-form .form-group { margin-bottom: 16px; }
.auth-form label { display: block; margin-bottom: 6px; font-weight: 600; color: var(--gray-700); font-size: 13px; }
.auth-form input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 14px;
    transition: var(--transition);
}
.auth-form input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,0.1); }
.form-divider { text-align: center; margin: 20px 0; position: relative; }
.form-divider::before { content: ''; position: absolute; top: 50%; left: 0; right: 0; height: 1px; background: var(--gray-200); }
.form-divider span { background: #fff; padding: 0 12px; color: var(--gray-400); font-size: 12px; position: relative; font-weight: 500; }
.auth-footer { text-align: center; margin-top: 20px; color: var(--gray-500); font-size: 13px; }

/* 密码强度指示器 */
.password-strength { margin-top: 8px; }
.strength-bar {
    height: 4px;
    background: var(--gray-200);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 4px;
}
.strength-fill {
    height: 100%;
    width: 0%;
    border-radius: 2px;
    transition: width 0.3s ease, background 0.3s ease;
}
.strength-fill.weak { background: #dc2626; }
.strength-fill.medium { background: #d97706; }
.strength-fill.strong { background: #059669; }
.strength-fill.very-strong { background: #2563eb; }
.strength-text {
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
}
.auth-footer a { font-weight: 600; }
.auth-tips { background: var(--gold-soft); padding: 12px; border-radius: var(--radius); margin-top: 16px; text-align: center; font-size: 12px; color: var(--gold-dark); font-weight: 600; }
.back-home { text-align: center; margin-top: 12px; }
.back-home a { color: var(--gray-400); font-size: 12px; }

/* === 19. 会员中心 / 后台 === */
.user-center, .admin-layout { display: grid; grid-template-columns: 1fr; gap: 16px; }
.admin-layout { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
.user-sidebar, .admin-sidebar {
    display: none;
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    height: fit-content;
    position: sticky;
    top: calc(var(--header-height) + 16px);
}
.user-sidebar.show, .admin-sidebar.show { display: block; position: fixed; inset: 0; z-index: 1001; border-radius: 0; overflow-y: auto; padding-top: 60px; }
.user-avatar {
    background: var(--card-gradient);
    color: #fff;
    padding: 28px 16px;
    text-align: center;
}
.user-avatar .avatar-icon {
    width: 68px; height: 68px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 12px;
    font-size: 28px;
}
.user-avatar h3 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.user-avatar p { font-size: 12px; opacity: 0.8; }
.user-nav, .admin-nav { padding: 8px 0; }
.user-nav a, .admin-nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px;
    color: var(--gray-600);
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
}
.user-nav a:hover, .admin-nav a:hover { background: var(--gray-50); color: var(--primary); }
.user-nav a.active, .admin-nav a.active { background: var(--primary); color: #fff; font-weight: 600; }
.user-nav a i, .admin-nav a i { width: 18px; text-align: center; }
.user-nav a.admin-link { background: var(--warning); color: #fff; }
.user-nav a.logout { color: var(--danger); }

.sidebar-toggle {
    display: block;
    width: 100%; max-width: 1200px;
    margin: 0 auto 12px;
    padding: 12px 16px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    cursor: pointer;
    font-weight: 600;
    text-align: center;
}
.sidebar-close { display: block; position: absolute; top: 16px; right: 16px; width: 36px; height: 36px; background: var(--gray-200); border: none; border-radius: 50%; font-size: 18px; cursor: pointer; }
.user-content, .admin-main { background: #fff; border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow-sm); }
.content-header, .admin-header { display: flex; flex-direction: column; align-items: flex-start; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 2px solid var(--gray-100); gap: 10px; }
.content-header h2, .admin-header h2 { font-size: 18px; font-weight: 700; color: var(--gray-900); }
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 20px; }
.admin-toolbar { display: flex; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 8px; }
.toolbar-actions { display: flex; gap: 6px; flex-wrap: wrap; width: 100%; }
.admin-logo { background: var(--card-gradient); color: #fff; padding: 24px 16px; text-align: center; }
.admin-logo i { font-size: 28px; margin-bottom: 8px; }
.admin-logo h3 { font-size: 16px; font-weight: 700; }

/* 操作按钮 */
.quick-actions { background: var(--gray-50); padding: 16px; border-radius: var(--radius); margin-bottom: 20px; }
.quick-actions h3 { font-size: 14px; font-weight: 700; margin-bottom: 12px; }
.action-buttons { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.action-btn {
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    padding: 16px 8px; background: #fff; border-radius: var(--radius);
    font-size: 12px; transition: var(--transition); border: 1px solid var(--gray-100);
}
.action-btn:hover { box-shadow: var(--shadow); border-color: var(--accent); }
.action-btn .action-icon { font-size: 22px; color: var(--accent); }
.action-btn span:last-child { font-weight: 600; color: var(--gray-700); }

/* 会员中心积分 */
.points-badge { background: rgba(255,255,255,0.2); padding: 4px 10px; border-radius: 12px; font-size: 12px; margin-top: 8px; display: inline-block; font-weight: 500; }
.referral-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); margin-bottom: 20px; }
.referral-card-inner { padding: 24px; background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%); color: #fff; }
.referral-info { display: flex; flex-direction: column; align-items: center; gap: 12px; margin-bottom: 16px; text-align: center; }
.referral-icon { width: 56px; height: 56px; background: rgba(255,255,255,0.2); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; flex-shrink: 0; }
.referral-text h3 { font-size: 16px; margin-bottom: 4px; }
.referral-link-row { display: flex; flex-direction: column; gap: 8px; }
.referral-link-row input { flex: 1; padding: 10px 14px; border: none; border-radius: var(--radius-sm); font-size: 13px; background: rgba(255,255,255,0.15); color: #fff; }
.referral-link-row input::placeholder { color: rgba(255,255,255,0.5); }
.referral-code-display { display: flex; flex-direction: column; gap: 10px; align-items: stretch; }
.referral-code-display .code { font-size: 24px; font-weight: 800; letter-spacing: 3px; background: rgba(255,255,255,0.15); padding: 8px 16px; border-radius: var(--radius-sm); font-family: monospace; text-align: center; }

/* === 20. 服务窗口 === */
.collect-page { max-width: 800px; margin: 0 auto; }
.collect-grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
.collect-card {
    background: #fff; border-radius: var(--radius-lg); padding: 24px 16px;
    text-align: center; box-shadow: var(--shadow-sm); transition: var(--transition);
    border: 1px solid var(--gray-100);
}
.collect-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.collect-card .collect-icon {
    width: 64px; height: 64px;
    background: var(--card-gradient);
    color: #fff; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; margin: 0 auto 16px;
}
.collect-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; color: var(--gray-900); }
.collect-card p { font-size: 13px; color: var(--gray-500); margin-bottom: 16px; line-height: 1.6; }
.collect-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 12px; border-top: 1px solid var(--gray-100); }
.collect-price { font-weight: 700; color: var(--danger); font-size: 16px; }
.collect-btn { background: var(--accent); color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 12px; font-weight: 600; border: none; cursor: pointer; transition: var(--transition); }
.collect-btn:hover { background: var(--primary); }

/* === 21. 表格 === */
.data-table { width: 100%; border-collapse: collapse; margin-bottom: 16px; font-size: 13px; }
.data-table th, .data-table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--gray-100); }
.data-table th { background: var(--gray-50); font-weight: 700; color: var(--gray-700); white-space: nowrap; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.data-table tr:hover { background: var(--gray-50); }
.table-wrapper { overflow-x: auto; margin-bottom: 16px; }
.table-wrapper .data-table { min-width: 600px; }
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; white-space: nowrap; }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-secondary { background: var(--gray-200); color: var(--gray-600); }

/* === 22. 分页 === */
.pagination {
    display: flex; align-items: center; justify-content: center;
    gap: 6px; margin-top: 20px; flex-wrap: wrap;
    padding: 16px; border-top: 1px solid var(--gray-100);
}
.pagination a, .pagination span { padding: 8px 14px; border-radius: var(--radius); font-size: 13px; font-weight: 500; }
.pagination a { background: var(--gray-100); color: var(--gray-600); transition: var(--transition); }
.pagination a:hover { background: var(--accent); color: #fff; }
.pagination .active { background: var(--accent); color: #fff; }
.pagination .disabled { opacity: 0.4; pointer-events: none; }
.page-info { color: var(--gray-500); font-size: 13px; }
.page-numbers { display: none; }

/* === 23. 表单 === */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; color: var(--gray-700); font-size: 13px; }
.form-group label .required { color: var(--danger); }
.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 14px;
    transition: var(--transition);
    background: #fff;
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,0.1); }
textarea.form-control { min-height: 100px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr; gap: 16px; }
.form-actions { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.form-actions .btn { width: 100%; justify-content: center; }
.form-hint { font-size: 11px; color: var(--gray-400); margin-top: 4px; display: block; }
.form-info-tip {
    background: #eff6ff;
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 13px;
    color: var(--primary);
    border: 1px solid #dbeafe;
}
.form-info-tip i { margin-right: 6px; color: var(--accent); }

/* 提交成功提示 */
.submit-success {
    text-align: center;
    padding: 48px 24px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.submit-success-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 36px;
    color: #fff;
    box-shadow: 0 4px 16px rgba(5,150,105,0.3);
}
.submit-success h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 10px;
}
.submit-success p {
    color: var(--gray-600);
    font-size: 14px;
    max-width: 360px;
    margin: 0 auto 24px;
    line-height: 1.7;
}
.submit-success-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.search-form { display: flex; gap: 8px; }
.search-form input { flex: 1; padding: 10px 14px; border: 2px solid var(--gray-200); border-radius: var(--radius); font-size: 14px; outline: none; }
.search-form input:focus { border-color: var(--accent); }

/* === 24. 图片上传 === */
.upload-area { border: 2px dashed var(--gray-300); border-radius: var(--radius); padding: 24px; text-align: center; cursor: pointer; transition: var(--transition); background: var(--gray-50); min-height: 100px; }
.upload-area:hover, .upload-area.dragover { border-color: var(--accent); background: #eff6ff; }
.upload-placeholder { display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--gray-500); }
.upload-placeholder i { font-size: 32px; color: var(--accent); }
.upload-placeholder span { font-size: 14px; }
.upload-placeholder small { font-size: 11px; color: var(--gray-400); }
.upload-preview-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 10px; margin-top: 12px; }
.upload-preview-item { position: relative; border-radius: var(--radius-sm); overflow: hidden; aspect-ratio: 1; }
.upload-preview-item img { width: 100%; height: 100%; object-fit: cover; }
.upload-preview-item .preview-remove { position: absolute; top: 4px; right: 4px; width: 24px; height: 24px; border-radius: 50%; background: rgba(0,0,0,0.6); color: #fff; border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 11px; transition: var(--transition); }
.upload-preview-item .preview-remove:hover { background: var(--danger); }
.existing-preview-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 10px; }

/* === 25. 提示 / 弹窗 === */
.alert { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; }
.alert-success { background: #d1fae5; color: #065f46; }
.alert-error { background: #fee2e2; color: #991b1b; }
.alert-info { background: #dbeafe; color: #1e40af; }
.empty-state { text-align: center; padding: 48px 20px; color: var(--gray-400); }
.empty-state i { font-size: 48px; margin-bottom: 16px; display: block; }
.empty-state p { margin-bottom: 16px; font-size: 14px; }
.modal {
    display: none; position: fixed; inset: 0;
    background: rgba(15,23,42,0.6); backdrop-filter: blur(4px);
    z-index: 2000; align-items: center; justify-content: center; padding: 20px;
}
.modal-content { background: #fff; border-radius: var(--radius-xl); padding: 28px 24px; width: 100%; max-width: 460px; max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-xl); }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.modal-header h3 { font-size: 18px; font-weight: 700; color: var(--gray-900); }
.modal-close { background: none; border: none; font-size: 28px; cursor: pointer; color: var(--gray-400); transition: var(--transition); }
.modal-close:hover { color: var(--danger); }

/* === 26. 页脚 === */
.footer { background: var(--gray-900); color: var(--gray-300); padding: 32px 0 20px; }
.footer-content { text-align: center; }
.footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; margin-bottom: 16px; }
.footer-links a { color: var(--gray-300); display: flex; align-items: center; gap: 4px; font-size: 13px; transition: var(--transition); }
.footer-links a:hover { color: #fff; }
.footer-info { font-size: 12px; color: var(--gray-500); }

/* =============================================
   响应式 - 平板 (>= 768px)
   ============================================= */
@media (min-width: 768px) {
    .nav { display: flex; align-items: center; gap: 2px; }
    .container { padding: 0 20px; }
    .hero-section { padding: 60px 24px 50px; border-radius: var(--radius-xl); margin: 0 16px 28px; }
    .hero-section h1 { font-size: 32px; }
    .hero-section p { font-size: 16px; }
    .hero-search { max-width: 640px; }
    .stats-bar { grid-template-columns: repeat(4, 1fr); }
    .fixed-ads-grid { grid-template-columns: repeat(4, 1fr); }
    .info-category-grid { grid-template-columns: repeat(4, 1fr); }
    .contact-cards-grid { grid-template-columns: repeat(3, 1fr); }
    .demand-modules-grid { grid-template-columns: repeat(3, 1fr); }
    .demand-tabs { flex-direction: row; }
    .demand-tab { font-size: 13px; padding: 16px 8px; }
    .demand-intro { flex-direction: row; text-align: left; }
    .demand-guarantee { grid-template-columns: repeat(3, 1fr); }
    .info-list-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-list-grid { grid-template-columns: repeat(2, 1fr); }
    .register-cta-inner { flex-direction: row; justify-content: space-between; text-align: left; padding: 36px 32px; }
    .cta-text h2 { font-size: 24px; }
    .cd-company { gap: 20px; }
    .cd-contact-grid { grid-template-columns: repeat(3, 1fr); }
    .cd-company-info h1 { font-size: 24px; }
    .form-row { grid-template-columns: repeat(2, 1fr); }
    .form-actions { flex-direction: row; }
    .form-actions .btn { width: auto; }
    .contact-info { grid-template-columns: repeat(2, 1fr); }
    .collect-grid { grid-template-columns: repeat(2, 1fr); }
    .page-numbers { display: flex; }
    .user-center, .admin-layout { grid-template-columns: 220px 1fr; }
    .user-sidebar, .admin-sidebar { display: block; position: sticky; }
    .user-sidebar.show, .admin-sidebar.show { position: sticky; border-radius: var(--radius-lg); padding-top: 0; }
    .sidebar-toggle { display: none; }
    .sidebar-close { display: none; }
    .content-header, .admin-header { flex-direction: row; align-items: center; justify-content: space-between; }
    .info-header-bar { flex-direction: row; align-items: center; justify-content: space-between; }
    .info-header-bar .btn { width: auto; }
    .referral-info { flex-direction: row; text-align: left; }
    .referral-link-row { flex-direction: row; }
    .referral-code-display { flex-direction: row; align-items: center; }
}

/* =============================================
   响应式 - 桌面 (>= 1024px)
   ============================================= */
@media (min-width: 1024px) {
    .container { padding: 0 24px; }
    body { font-size: 15px; }
    .hero-section { padding: 72px 32px 60px; }
    .hero-section h1 { font-size: 36px; }
    .hero-search { max-width: 680px; }
    .fixed-ads-grid { grid-template-columns: repeat(5, 1fr); gap: 14px; }
    .info-category-grid { grid-template-columns: repeat(7, 1fr); }
    .contact-cards-grid { grid-template-columns: repeat(6, 1fr); }
    .info-list-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-list-grid { grid-template-columns: repeat(3, 1fr); }
    .nav a { padding: 8px 14px; font-size: 14px; }
    .nav a i { font-size: 14px; }
    .logo { font-size: 20px; }
    .logo i { font-size: 26px; }
    .info-page { grid-template-columns: 220px 1fr; }
    .info-sidebar { display: block; }
    .mobile-category-filter { display: none; }
    .stats-grid { grid-template-columns: repeat(6, 1fr); gap: 12px; }
    .collect-grid { grid-template-columns: repeat(3, 1fr); }
    .contact-info { grid-template-columns: repeat(3, 1fr); }
}