/**
 * Guonika B2B Industrial Platform - Professional Redesign
 * Industrial Professional Aesthetic - Trust, Authority, Efficiency
 * Version 2.0.0
 */

/* ============================================
   CSS VARIABLES - Industrial Professional Theme
   ============================================ */
:root {
    /* Primary Colors - Deep Industrial Navy */
    --primary-dark: #0d2137;
    --primary: #1a3a5c;
    --primary-light: #2d5a87;

    /* Accent Colors - Industrial Orange & Trust Blue */
    --accent-orange: #ff6b35;
    --accent-orange-dark: #e55a2b;
    --accent-blue: #1890ff;
    --accent-blue-light: #40a9ff;
    --accent-gold: #faad14;

    /* Semantic Colors */
    --success: #52c41a;
    --success-light: #73d13d;
    --danger: #ff4d4f;
    --danger-light: #ff7875;
    --warning: #faad14;

    /* Neutrals - Professional Grays */
    --gray-900: #1a1a2e;
    --gray-800: #2d2d44;
    --gray-700: #4a4a5e;
    --gray-600: #6b6b7b;
    --gray-500: #8c8c9a;
    --gray-400: #b0b0ba;
    --gray-300: #d4d4dc;
    --gray-200: #e8e8ec;
    --gray-100: #f4f4f6;
    --gray-50: #fafafb;

    /* Text Colors */
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5e;
    --text-tertiary: #8c8c9a;
    --text-inverse: #ffffff;

    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f7f8fa;
    --bg-tertiary: #eef1f5;
    --bg-dark: #0d2137;

    /* Border Colors */
    --border-light: #e8e8ec;
    --border-medium: #d4d4dc;
    --border-dark: #b0b0ba;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04), 0 1px 4px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.04), 0 2px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.06), 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 12px 28px rgba(0, 0, 0, 0.08), 0 8px 40px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 24px rgba(24, 144, 255, 0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
}

/* ============================================
   GLOBAL STYLES & TYPOGRAPHY
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    margin: 0;
    padding: 0;
}

/* Selection styling */
::selection {
    background-color: var(--accent-blue);
    color: white;
}

/* ============================================
   TOP BAR - Professional Info Strip
   ============================================ */
.top-bar {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    font-size: 13px;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.top-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-orange) 0%, var(--accent-gold) 50%, var(--accent-orange) 100%);
}

.top-bar a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: var(--transition-fast);
    font-weight: 500;
}

.top-bar a:hover {
    color: var(--accent-gold);
}

.top-bar-entry-group {
    display: inline-flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.top-bar-entry {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
}

.top-bar-entry-primary {
    background: rgba(255, 255, 255, 0.18);
}

.top-bar .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 12px;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.top-bar .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   MAIN NAVIGATION - Professional Header
   ============================================ */
.navbar {
    background: var(--bg-primary) !important;
    box-shadow: var(--shadow-md);
    padding: 0;
    min-height: 70px;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.navbar > .container {
    min-height: 70px;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark) !important;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 0;
    transition: var(--transition-fast);
}

.site-brand-logo {
    display: block;
    width: auto;
    height: 46px;
    border-radius: 12px;
    box-shadow: 0 8px 18px rgba(13, 33, 55, 0.18);
}

.site-brand-copy {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.site-brand-name {
    font-size: 1rem;
    font-weight: 800;
    color: var(--primary-dark);
}

.site-brand-tagline {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-tertiary);
}

.navbar-brand:hover {
    color: var(--accent-blue) !important;
}

/* Search Box */
.navbar form.d-flex {
    max-width: 480px;
    flex: 1;
}

.navbar .input-group {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--border-light);
    transition: var(--transition-fast);
}

.navbar .input-group:focus-within {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.1);
}

.navbar .form-control {
    border: none;
    padding: 12px 16px;
    font-size: 14px;
    background: var(--bg-primary);
}

.navbar .form-control:focus {
    box-shadow: none;
    background: var(--bg-primary);
}

.navbar .form-control::placeholder {
    color: var(--text-tertiary);
}

.navbar .btn-primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--primary-light) 100%);
    border: none;
    padding: 12px 24px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
}

.navbar .btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-blue-light) 0%, var(--accent-blue) 100%);
    transform: translateX(2px);
}

.nav-cta-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.nav-cta-btn {
    border-radius: 999px;
    padding: 10px 16px;
    font-weight: 700;
    white-space: nowrap;
}

/* ============================================
   SEARCH HUB PAGE
   ============================================ */
.search-page {
    background:
        radial-gradient(circle at top left, rgba(24, 144, 255, 0.08), transparent 32%),
        linear-gradient(180deg, #f4f8fc 0%, #eef2f7 100%);
}

.search-hero-card {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.9fr);
    gap: 24px;
    padding: 32px;
    border-radius: 24px;
    background: linear-gradient(135deg, #0f2339 0%, #1c4268 55%, #2d5a87 100%);
    color: #fff;
    box-shadow: var(--shadow-xl);
    margin-bottom: 24px;
}

.search-hero-card .breadcrumb {
    margin-bottom: 16px;
}

.search-hero-card .breadcrumb-item,
.search-hero-card .breadcrumb-item a,
.search-hero-card .breadcrumb-item.active {
    color: rgba(255, 255, 255, 0.86);
}

.search-hero-kicker {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.search-hero-card h1 {
    font-size: 34px;
    line-height: 1.2;
    margin-bottom: 12px;
}

.search-hero-card p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 760px;
    margin-bottom: 18px;
}

.search-hero-form {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.search-hero-form input {
    flex: 1;
    border: 0;
    border-radius: 14px;
    padding: 15px 18px;
    font-size: 15px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.search-hero-form button {
    border: 0;
    border-radius: 14px;
    padding: 0 20px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #ff7b42 0%, #ff6b35 100%);
}

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

.search-hero-panel {
    display: grid;
    gap: 14px;
}

.search-stat-card {
    padding: 20px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.14);
}

.search-stat-card span,
.search-stat-card small {
    display: block;
    color: rgba(255, 255, 255, 0.78);
}

.search-stat-card strong {
    display: block;
    font-size: 28px;
    line-height: 1.1;
    margin: 8px 0;
}

.search-section {
    background: #fff;
    border: 1px solid #e6edf6;
    border-radius: 20px;
    padding: 24px;
    box-shadow: var(--shadow-md);
    margin-bottom: 20px;
}

.section-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.section-heading h2 {
    font-size: 22px;
    margin: 0;
}

.section-heading p {
    margin: 0;
    color: var(--text-secondary);
}

.search-chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.search-chip {
    display: inline-flex;
    align-items: center;
    padding: 10px 14px;
    border-radius: 999px;
    background: #f3f7fb;
    border: 1px solid #dbe7f3;
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.search-chip:hover {
    color: #fff;
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

.search-grid-section {
    display: grid;
    grid-template-columns: minmax(0, 1.65fr) minmax(300px, 0.85fr);
    gap: 20px;
    align-items: start;
}

.search-result-stack {
    display: grid;
    gap: 16px;
}

.search-result-card {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 16px;
    padding: 18px;
    border-radius: 18px;
    background: linear-gradient(180deg, #fbfdff 0%, #f4f8fc 100%);
    border: 1px solid #e1ebf4;
}

.search-result-icon,
.search-mini-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    color: #fff;
    background: linear-gradient(135deg, #1a3a5c 0%, #1890ff 100%);
}

.search-result-icon {
    width: 56px;
    height: 56px;
    font-size: 22px;
}

.search-result-meta,
.search-mini-meta,
.search-company-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    color: var(--text-tertiary);
    font-size: 12px;
}

.search-result-card h3,
.search-mini-card h3,
.search-company-card h3 {
    margin: 6px 0 8px;
    font-size: 19px;
    line-height: 1.45;
}

.search-result-card h3 a,
.search-mini-card h3 a,
.search-company-card h3 a {
    color: var(--text-primary);
    text-decoration: none;
}

.search-result-card h3 a:hover,
.search-mini-card h3 a:hover,
.search-company-card h3 a:hover {
    color: var(--accent-blue);
}

.search-result-card p,
.search-mini-card p,
.search-company-card p,
.search-advice-card p {
    margin: 0;
    color: var(--text-secondary);
}

.search-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.search-mini-card,
.search-company-card,
.search-advice-card {
    padding: 18px;
    border-radius: 18px;
    border: 1px solid #e4ebf3;
    background: #fbfdff;
}

.search-mini-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 14px;
    font-size: 18px;
}

.search-side-panel {
    position: sticky;
    top: 96px;
}

.search-advice-list,
.search-company-list,
.search-topic-list {
    display: grid;
    gap: 14px;
}

.search-topic-list a {
    display: block;
    padding: 16px;
    border-radius: 16px;
    text-decoration: none;
    background: linear-gradient(180deg, #f8fbff 0%, #eef5fb 100%);
    border: 1px solid #deebf6;
    color: var(--text-primary);
}

.search-topic-list strong,
.search-topic-list span {
    display: block;
}

.search-topic-list span {
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 13px;
}

.search-empty-card {
    text-align: center;
    padding: 42px 24px;
    border-radius: 18px;
    background: #f7fafc;
    border: 1px dashed #cddceb;
}

.search-empty-card i {
    font-size: 36px;
    color: var(--accent-blue);
}

@media (max-width: 991px) {
    .search-hero-card,
    .search-grid-section,
    .search-card-grid {
        grid-template-columns: 1fr;
    }

    .search-side-panel {
        position: static;
    }
}

@media (max-width: 767px) {
    .search-hero-card {
        padding: 22px;
    }

    .search-hero-card h1 {
        font-size: 28px;
    }

    .search-hero-form,
    .search-hero-actions,
    .section-heading {
        flex-direction: column;
        align-items: stretch;
    }

    .search-result-card {
        grid-template-columns: 1fr;
    }
}

/* Nav Links */
.navbar-nav .nav-link {
    color: var(--text-primary) !important;
    font-weight: 500;
    font-size: 14px;
    padding: 24px 16px !important;
    position: relative;
    transition: var(--transition-fast);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--accent-orange);
    transition: var(--transition-base);
    transform: translateX(-50%);
    border-radius: 2px 2px 0 0;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--accent-blue) !important;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 100%;
}

/* Nav with icons */
.navbar-nav .nav-link .bi-gem {
    color: var(--accent-gold);
    margin-right: 4px;
}

/* Dropdown menus */
.navbar .dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: 8px;
    margin-top: 0;
    animation: dropdownFade 0.2s ease;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.navbar .dropdown-item {
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: var(--transition-fast);
}

.navbar .dropdown-item:hover {
    background: var(--bg-tertiary);
    color: var(--accent-blue);
}

.navbar .dropdown-item .badge {
    font-size: 11px;
    padding: 3px 8px;
}

/* ============================================
   CATEGORY NAVIGATION - Sub Nav Bar
   ============================================ */
.category-nav {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: 0;
}

.category-nav .nav-pills {
    gap: 4px;
    padding: 12px 0;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
}

.category-nav .nav-pills::-webkit-scrollbar {
    display: none;
}

.category-nav .nav-link {
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.category-nav .nav-link:hover {
    color: var(--accent-blue);
    background: var(--bg-tertiary);
}

.category-nav .nav-link.active {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
}

.category-nav .nav-link.disabled {
    color: var(--text-primary);
    font-weight: 600;
    padding-left: 0;
}

/* ============================================
   MAIN CONTENT AREA
   ============================================ */
.main-content {
    min-height: calc(100vh - 400px);
    padding: 0;
    background: var(--bg-secondary);
}

/* ============================================
   BANNER CAROUSEL - Hero Section
   ============================================ */
.banner-carousel {
    margin-bottom: 0;
    position: relative;
}

.banner-content {
    min-height: 380px;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

/* 统一使用专业深蓝色背景 - 移除多色方案 */
.banner-content.bg-primary,
.banner-content.bg-success,
.banner-content.bg-info {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%) !important;
}

/* Hero区域专业化样式 */
.hero-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255, 107, 53, 0.1) 0%, transparent 70%);
    transform: rotate(-15deg);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-signal-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 22px;
}

.hero-signal-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.95);
    font-size: 13px;
}

.hero-signal-item i {
    color: #9be56a;
}

.hero-action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: var(--accent-orange);
    color: white;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    transition: var(--transition-base);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.hero-cta:hover {
    background: var(--accent-orange-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
    color: white;
}

.hero-cta-ghost {
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow: none;
}

.hero-cta-ghost:hover {
    background: rgba(255, 255, 255, 0.24);
}

.hero-micro-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 13px;
}

.hero-micro-metrics strong {
    color: #fff;
    font-size: 16px;
    margin-right: 4px;
}

/* Banner decorative elements */
.banner-content::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255,255,255,0.1) 0%, transparent 70%);
    transform: rotate(-15deg);
}

.banner-content::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to top, rgba(0,0,0,0.2), transparent);
}

.banner-content .text-center {
    position: relative;
    z-index: 2;
}

.banner-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.banner-content p {
    font-size: 1.125rem;
    opacity: 0.95;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.banner-content i.bi {
    font-size: 4rem;
    opacity: 0.9;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
}

/* Carousel controls */
.carousel-control-prev,
.carousel-control-next {
    width: 60px;
    opacity: 0;
    transition: var(--transition-base);
}

.carousel:hover .carousel-control-prev,
.carousel:hover .carousel-control-next {
    opacity: 1;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(255,255,255,0.9);
    border-radius: 50%;
    background-size: 50%;
    filter: invert(1);
    box-shadow: var(--shadow-md);
}

.carousel-indicators {
    margin-bottom: 20px;
}

.carousel-indicators button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin: 0 6px;
    opacity: 0.5;
    transition: var(--transition-base);
    border: 2px solid white;
    background: transparent;
}

.carousel-indicators button.active {
    opacity: 1;
    background: white;
    transform: scale(1.2);
}

/* ============================================
   PRICE TICKER - Market Data Strip
   ============================================ */
.price-ticker-wrapper {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #162d4a 100%);
    padding: 14px 0;
    border-bottom: 3px solid var(--accent-gold);
    position: relative;
    overflow: hidden;
}

.price-ticker-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.price-ticker-wrapper .text-white {
    position: relative;
    z-index: 2;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.price-ticker-wrapper .text-white i {
    color: var(--accent-gold);
    font-size: 1.1rem;
}

.price-ticker {
    display: flex;
    align-items: center;
    white-space: nowrap;
    animation: scroll-left 40s linear infinite;
}

.price-ticker-item {
    display: inline-flex;
    align-items: center;
    padding: 0 24px;
    color: white;
    font-size: 13px;
    border-right: 1px solid rgba(255, 255, 255, 0.15);
    gap: 8px;
}

.price-ticker-name {
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
}

.price-ticker-value {
    font-size: 15px;
    font-weight: 700;
    color: var(--accent-gold);
}

.price-ticker-change {
    font-size: 12px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

.price-ticker-change.up {
    background: rgba(82, 196, 26, 0.2);
    color: var(--success-light);
}

.price-ticker-change.down {
    background: rgba(255, 77, 79, 0.2);
    color: var(--danger-light);
}

@keyframes scroll-left {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.price-ticker:hover {
    animation-play-state: paused;
}

/* ============================================
   SECTION STYLES - Category Sections
   ============================================ */
.category-section {
    margin-bottom: 0;
    padding: var(--space-2xl) 0;
    background: var(--bg-primary);
}

.category-section:nth-child(even) {
    background: var(--bg-secondary);
}

.category-section.bg-light {
    background: var(--bg-tertiary) !important;
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: none;
    position: relative;
}

.category-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-orange), var(--accent-gold));
    border-radius: 2px;
}

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.category-title i {
    font-size: 1.25rem;
}

.category-title .bi-star-fill { color: var(--accent-gold); }
.category-title .bi-building { color: var(--accent-blue); }
.category-title .bi-gem { color: var(--accent-gold); }
.category-title .bi-clock-history { color: var(--success); }
.category-title .bi-award-fill { color: var(--accent-gold); }
.category-title .bi-file-earmark-bar-graph { color: var(--accent-blue); }
.category-title .bi-newspaper { color: var(--primary); }
.category-title .bi-graph-up { color: var(--accent-blue); }
.category-title .bi-cart-check-fill { color: var(--success); }

.category-more {
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.category-more:hover {
    color: var(--accent-blue);
    background: rgba(24, 144, 255, 0.08);
    border-color: rgba(24, 144, 255, 0.2);
}

/* ============================================
   HOT SEARCH - Search Tags
   ============================================ */
.hot-search {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    margin: var(--space-xl) 0;
    border: 1px solid var(--border-light);
}

.hot-search-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.hot-search-title i {
    color: var(--accent-orange);
}

.hot-search-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.hot-search-tag {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition-fast);
}

.hot-search-tag:hover {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   PRODUCT CARDS - Refined Design
   ============================================ */
.product-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-base);
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-orange));
    opacity: 0;
    transition: var(--transition-base);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-blue);
}

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

.product-card-img {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-card-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(24, 144, 255, 0.05) 0%, rgba(255, 107, 53, 0.05) 100%);
}

.product-card-img i {
    font-size: 4rem;
    color: var(--accent-blue);
    opacity: 0.6;
    transition: var(--transition-base);
    position: relative;
    z-index: 1;
}

.product-card:hover .product-card-img i {
    transform: scale(1.1);
    opacity: 0.8;
}

.product-card-body {
    padding: var(--space-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-card-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.8em;
    line-height: 1.4;
}

.product-card-title a {
    color: inherit;
    transition: var(--transition-fast);
}

.product-card-title a:hover {
    color: var(--accent-blue);
}

.product-card-desc {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: var(--space-md);
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.product-card-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--danger);
    margin-bottom: var(--space-sm);
    font-family: "DIN Alternate", -apple-system, sans-serif;
}

.product-card-meta {
    font-size: 12px;
    color: var(--text-tertiary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-sm);
    border-top: 1px solid var(--border-light);
    margin-top: auto;
}

.product-card-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

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

.product-card .btn-outline-primary {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    font-size: 13px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    margin-top: var(--space-md);
}

.product-card .btn-outline-primary:hover {
    background: var(--accent-blue);
    color: white;
    transform: translateY(-1px);
}

/* ============================================
   COMPANY CARDS - Trust-Building Design
   ============================================ */
.company-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.company-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-blue), var(--accent-orange));
    opacity: 0;
    transition: var(--transition-base);
}

.company-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-blue);
}

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

.company-logo {
    width: 72px;
    height: 72px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.company-card:hover .company-logo {
    border-color: var(--accent-blue);
}

.company-logo i {
    font-size: 1.75rem;
    color: var(--accent-blue);
}

.company-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
    line-height: 1.4;
}

.company-name a {
    color: inherit;
    transition: var(--transition-fast);
}

.company-name a:hover {
    color: var(--accent-blue);
}

.company-intro {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: var(--space-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

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

.company-info i {
    color: var(--accent-blue);
    margin-right: 4px;
}

.company-card .btn-primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--primary-light) 100%);
    border: none;
    font-size: 13px;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.company-card .btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-blue-light) 0%, var(--accent-blue) 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   PURCHASE HALL - Request Cards
   ============================================ */
.purchase-hall {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.purchase-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: 0;
    transition: var(--transition-base);
    cursor: pointer;
}

.purchase-item:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.purchase-item.urgent {
    border-left: 4px solid var(--danger);
    background: linear-gradient(90deg, rgba(255, 77, 79, 0.02) 0%, transparent 100%);
}

.purchase-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
}

.purchase-badge.urgent {
    background: rgba(255, 77, 79, 0.1);
    color: var(--danger);
}

/* ============================================
   OPPORTUNITY CARDS - Business Opportunities
   ============================================ */
.opportunity-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: var(--transition-base);
    cursor: pointer;
    height: 100%;
    position: relative;
}

.opportunity-card:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.opportunity-card.hot {
    border-left: 4px solid var(--accent-gold);
    background: linear-gradient(90deg, rgba(250, 173, 20, 0.03) 0%, transparent 100%);
}

.opportunity-card .badge {
    font-size: 11px;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
}

.opportunity-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--danger);
    font-family: "DIN Alternate", -apple-system, sans-serif;
}

/* ============================================
   SUPPLIER RATING CARDS
   ============================================ */
.supplier-rating-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: var(--transition-base);
    cursor: pointer;
    height: 100%;
}

.supplier-rating-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--accent-gold);
}

.supplier-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 13px;
}

.supplier-badge.gold {
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
    color: #8b6914;
    box-shadow: 0 2px 8px rgba(255, 215, 0, 0.3);
}

.supplier-badge.silver {
    background: linear-gradient(135deg, #c0c0c0 0%, #e8e8e8 100%);
    color: #666;
}

.supplier-badge.certified {
    background: linear-gradient(135deg, var(--accent-blue) 0%, #5bc0de 100%);
    color: white;
}

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

.certification-tag {
    background: var(--bg-tertiary);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ============================================
   INQUIRY CENTER - CTA Section
   ============================================ */
.inquiry-center {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    color: white;
    border-radius: var(--radius-xl);
    padding: var(--space-3xl) var(--space-2xl);
    position: relative;
    overflow: hidden;
}

.inquiry-center::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255,255,255,0.1) 0%, transparent 70%);
    transform: rotate(-15deg);
}

.inquiry-center h2 {
    font-size: 1.75rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.inquiry-center p {
    font-size: 1rem;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.inquiry-features {
    display: flex;
    gap: var(--space-xl);
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.inquiry-feature {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    cursor: pointer;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.inquiry-feature:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.3);
}

.inquiry-feature-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    color: var(--accent-gold);
}

.inquiry-feature h5 {
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

/* ============================================
   NEWS CARDS - Article Cards
   ============================================ */
.news-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-base);
    height: 100%;
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-blue);
}

.news-card .card-img-top {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.news-card .card-img-top i {
    font-size: 3rem;
    color: var(--primary);
    opacity: 0.5;
}

.news-card .card-body {
    padding: var(--space-lg);
}

.news-card .card-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.news-card .card-title a {
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.news-card .card-title a:hover {
    color: var(--accent-blue);
}

.news-card .card-text {
    font-size: 13px;
    color: var(--text-tertiary);
    line-height: 1.5;
}

/* ============================================
   PREMIUM REPORT CARDS
   ============================================ */
.premium-report-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: var(--transition-base);
    cursor: pointer;
    position: relative;
    height: 100%;
}

.premium-report-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-6px);
    border-color: var(--accent-blue);
}

.premium-report-card.hot {
    border-color: var(--accent-orange);
}

.report-icon-wrapper {
    width: 100%;
    height: 140px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    position: relative;
    overflow: hidden;
}

.report-icon-wrapper.blurred {
    filter: blur(2px);
}

.report-icon {
    font-size: 3.5rem;
    color: white;
    opacity: 0.9;
}

.report-lock-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-base);
}

.premium-report-card:hover .report-lock-overlay {
    opacity: 1;
}

.report-lock-icon {
    font-size: 2rem;
    color: var(--accent-gold);
}

/* ============================================
   INDICATOR CARDS - Stats Cards
   ============================================ */
.indicator-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    transition: var(--transition-base);
    cursor: pointer;
}

.indicator-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--accent-blue);
}

.indicator-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-blue);
    filter: blur(3px);
    margin: var(--space-md) 0;
    font-family: "DIN Alternate", -apple-system, sans-serif;
}

.indicator-change {
    font-size: 13px;
    font-weight: 600;
}

.indicator-change.up {
    color: var(--success);
}

.indicator-change.down {
    color: var(--danger);
}

/* ============================================
   VIP & PREMIUM BADGES
   ============================================ */
.vip-badge {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
    color: #8b6914;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(255, 215, 0, 0.3);
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 10;
}

.vip-badge-inline {
    position: relative;
    top: auto;
    right: auto;
    margin-left: 8px;
}

.limited-badge {
    background: linear-gradient(135deg, var(--danger) 0%, var(--accent-orange) 100%);
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.9;
        transform: scale(1.02);
    }
}

/* ============================================
   SIDEBAR STYLES
   ============================================ */
.sidebar {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
}

.sidebar-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--accent-blue);
    color: var(--text-primary);
}

.sidebar-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-list li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

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

.sidebar-list a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
}

.sidebar-list a:hover {
    color: var(--accent-blue);
    padding-left: 8px;
}

.sidebar-list .badge {
    font-size: 11px;
    padding: 4px 8px;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
    margin-top: var(--space-2xl);
    gap: 4px;
}

.pagination .page-link {
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    font-weight: 500;
    transition: var(--transition-fast);
}

.pagination .page-item.active .page-link {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

.pagination .page-link:hover {
    color: var(--accent-blue);
    background: var(--bg-tertiary);
    border-color: var(--accent-blue);
}

/* ============================================
   FOOTER - Professional Footer
   ============================================ */
.footer {
    background: linear-gradient(180deg, var(--primary-dark) 0%, #0a1929 100%);
    color: white;
    margin-top: 0;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-orange), var(--accent-gold), var(--accent-blue));
}

.footer h5 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: white;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer h5 i {
    color: var(--accent-gold);
}

.footer-brand {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 18px;
    color: white;
    text-decoration: none;
}

.footer-brand:hover {
    color: white;
}

.footer-brand-logo {
    display: block;
    width: auto;
    height: 52px;
    border-radius: 14px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.24);
}

.footer-brand-copy {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-brand-copy strong {
    font-size: 15px;
    line-height: 1.3;
}

.footer-brand-copy span {
    font-size: 13px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.72);
}

.footer-brand-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition-fast);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--accent-gold) !important;
    padding-left: 8px;
}

.footer hr {
    border-color: rgba(255, 255, 255, 0.1);
    margin: var(--space-xl) 0;
}

.footer .text-white-50 {
    color: rgba(255, 255, 255, 0.6) !important;
    font-size: 13px;
}

/* ============================================
   FLOATING ELEMENTS
   ============================================ */
.floating-chat,
.floating-service {
    position: fixed;
    right: 24px;
    z-index: 1000;
    cursor: pointer;
    transition: var(--transition-base);
}

.floating-chat {
    bottom: 120px;
}

.floating-service {
    bottom: 40px;
}

.floating-chat-btn,
.floating-service-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--primary-light) 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
    position: relative;
}

.floating-chat-btn:hover,
.floating-service-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.floating-chat-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--danger);
    color: white;
    border-radius: 12px;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 700;
    min-width: 20px;
    text-align: center;
}

.floating-vip-entry {
    position: fixed;
    right: 24px;
    bottom: 200px;
    z-index: 999;
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    box-shadow: 0 6px 24px rgba(255, 215, 0, 0.4);
    cursor: pointer;
    transition: var(--transition-base);
    animation: float 3s ease-in-out infinite;
}

.floating-vip-entry:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ============================================
   AUTH MODAL STYLES
   ============================================ */
.auth-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    animation: fadeIn 0.3s ease;
}

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

.auth-modal-container {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    max-width: 560px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease;
}

.auth-modal-simple {
    max-width: 440px;
}

@keyframes slideUp {
    from {
        transform: translateY(40px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.auth-modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.auth-modal-close {
    background: none;
    border: none;
    font-size: 1.75rem;
    line-height: 1;
    cursor: pointer;
    color: var(--text-tertiary);
    transition: var(--transition-fast);
    padding: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

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

.auth-modal-body {
    padding: var(--space-2xl);
}

.auth-modal-header-accent {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    color: #fff;
    border-bottom: 0;
}

.auth-register-intro {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    padding: var(--space-lg);
    border: 1px solid rgba(24, 144, 255, 0.12);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(24, 144, 255, 0.06) 0%, rgba(24, 144, 255, 0.02) 100%);
    margin-bottom: var(--space-xl);
}

.auth-register-icon {
    width: 56px;
    height: 56px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--primary-light) 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.auth-account-switch {
    display: inline-flex;
    gap: 8px;
    padding: 6px;
    border-radius: 999px;
    background: var(--bg-tertiary);
}

.auth-account-switch .btn {
    border-radius: 999px;
    min-width: 108px;
    border-color: transparent;
}

.auth-account-switch .btn-check:checked + .btn {
    color: #fff;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--primary-light) 100%);
    border-color: transparent;
}

.auth-captcha-panel {
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
}

.auth-captcha-row,
.auth-sms-row {
    display: flex;
    gap: var(--space-md);
    align-items: stretch;
}

.auth-captcha-row input,
.auth-sms-row .flex-grow-1 {
    flex: 1;
}

.auth-captcha-image {
    width: 180px;
    min-width: 180px;
    height: 56px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-medium);
    background: #fff;
    cursor: pointer;
    object-fit: cover;
}

.auth-sms-action {
    width: 180px;
    min-width: 180px;
}

.auth-sms-action .btn {
    height: 56px;
}

/* ============================================
   CONVERSION & COMMENTS
   ============================================ */
.member-conversion-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    padding: 28px 30px;
    margin: 24px 0;
    border-radius: 22px;
    background:
        radial-gradient(circle at top right, rgba(255, 255, 255, 0.16), transparent 35%),
        linear-gradient(135deg, #102843 0%, #1c4268 54%, #235d95 100%);
    color: #fff;
    box-shadow: var(--shadow-xl);
}

.member-conversion-kicker,
.comment-section-kicker {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.member-conversion-copy h3 {
    margin: 12px 0 8px;
    font-size: 28px;
}

.member-conversion-copy p {
    margin: 0;
    max-width: 680px;
    color: rgba(255, 255, 255, 0.88);
}

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

.comment-section-wrapper {
    margin-top: 28px;
    padding: 28px;
    border-radius: 24px;
    background: linear-gradient(180deg, #ffffff 0%, #f7f9fc 100%);
    border: 1px solid rgba(26, 58, 92, 0.08);
    box-shadow: var(--shadow-lg);
}

.comment-section-header,
.comment-form-actions,
.comment-card-head,
.comment-subsection-head {
    display: flex;
    justify-content: space-between;
    gap: 16px;
}

.comment-section-header {
    align-items: flex-start;
    margin-bottom: 24px;
}

.comment-section-header h3 {
    margin: 12px 0 8px;
    font-size: 28px;
}

.comment-section-header p,
.comment-subsection-head p,
.comment-form-copy p {
    margin: 0;
    color: var(--text-secondary);
}

.comment-section-stats {
    display: grid;
    gap: 10px;
    min-width: 220px;
}

.comment-section-stats span {
    padding: 10px 14px;
    border-radius: 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
}

.comment-section-stats strong {
    color: var(--primary-dark);
    font-size: 1.1rem;
}

.comment-form-card {
    padding: 24px;
    border-radius: 20px;
    background: #fff;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.comment-form-copy h4,
.comment-subsection-head h4 {
    margin-bottom: 8px;
}

.comment-form {
    margin-top: 18px;
}

.comment-form-actions {
    align-items: center;
    margin-top: 16px;
    flex-wrap: wrap;
}

.comment-action-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.comment-anonymous-toggle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 14px;
    background: var(--bg-secondary);
}

.comment-form-message {
    margin-top: 14px;
}

.comment-subsection {
    margin-top: 26px;
}

.comment-list {
    display: grid;
    gap: 14px;
    margin-top: 14px;
}

.comment-card {
    padding: 18px 20px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.comment-card-pending {
    background: linear-gradient(180deg, #fffaf0 0%, #fff 100%);
    border-color: rgba(250, 173, 20, 0.26);
}

.comment-card-curated {
    background: linear-gradient(180deg, #f5faff 0%, #fff 100%);
    border-color: rgba(24, 144, 255, 0.22);
}

.comment-author {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-dark);
}

.comment-meta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-tertiary);
    font-size: 13px;
    flex-wrap: wrap;
}

.comment-card-content {
    margin: 14px 0 0;
    color: var(--text-primary);
}

.comment-empty-state,
.comment-note {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 16px 18px;
    border-radius: 16px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

.comment-empty-state i {
    font-size: 1.4rem;
    color: var(--accent-blue);
}

.comment-honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

/* ============================================
   PRODUCT DETAIL PAGE
   ============================================ */
.product-detail {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xl);
}

.product-info h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    line-height: 1.4;
}

.product-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--danger);
    margin-bottom: var(--space-md);
    font-family: "DIN Alternate", -apple-system, sans-serif;
}

.product-meta {
    margin-bottom: var(--space-xl);
}

.product-meta-item {
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border-light);
    display: flex;
}

.product-meta-label {
    width: 100px;
    color: var(--text-tertiary);
    font-weight: 500;
    flex-shrink: 0;
}

.product-meta-value {
    flex: 1;
    color: var(--text-primary);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1200px) {
    .navbar form.d-flex {
        max-width: 360px;
    }
}

@media (max-width: 992px) {
    .navbar-nav .nav-link {
        padding: 12px 16px !important;
    }

    .navbar-nav .nav-link::after {
        display: none;
    }

    .navbar form.d-flex {
        max-width: 280px;
    }

    .nav-cta-group {
        margin-top: 12px;
        justify-content: flex-start;
    }

    .category-section {
        padding: var(--space-xl) 0;
    }

    .banner-content h2 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .top-bar .row {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }

    .top-bar .col-md-6 {
        text-align: center !important;
    }

    .top-bar-entry-group {
        justify-content: center;
        margin-top: 8px;
    }

    .navbar {
        min-height: 60px;
    }

    .navbar > .container {
        min-height: 60px;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    .site-brand-logo {
        height: 40px;
    }

    .site-brand-copy {
        display: none;
    }

    .navbar form.d-flex {
        display: none !important;
    }

    .navbar-collapse {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        box-shadow: var(--shadow-lg);
        padding: var(--space-md);
    }

    .banner-content {
        min-height: 260px;
    }

    .banner-content h2 {
        font-size: 1.5rem;
    }

    .banner-content p {
        font-size: 1rem;
    }

    .banner-content i.bi {
        font-size: 3rem;
    }

    .category-nav .nav-pills {
        padding: 8px 0;
    }

    .category-section {
        padding: var(--space-lg) 0;
    }

    .category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    .category-title {
        font-size: 1.25rem;
    }

    .product-card-img {
        height: 160px;
    }

    .company-card {
        padding: var(--space-lg);
    }

    .inquiry-features {
        flex-direction: column;
    }

    .inquiry-center {
        padding: var(--space-xl);
    }

    .floating-chat,
    .floating-service {
        right: 16px;
    }

    .floating-chat {
        bottom: 100px;
    }

    .floating-chat-btn,
    .floating-service-btn {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }

    .floating-vip-entry {
        right: 16px;
        bottom: 160px;
        padding: var(--space-sm);
    }

    .footer .col-lg-3 {
        margin-bottom: var(--space-xl);
    }

    .member-conversion-banner,
    .comment-section-header,
    .comment-form-actions,
    .comment-card-head,
    .comment-subsection-head {
        flex-direction: column;
    }

    .member-conversion-copy h3,
    .comment-section-header h3 {
        font-size: 24px;
    }

    .comment-section-wrapper {
        padding: 22px;
    }
}

@media (max-width: 576px) {
    body {
        font-size: 13px;
    }

    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .product-card-body {
        padding: var(--space-md);
    }

    .product-card-title {
        font-size: 14px;
        min-height: 2.6em;
    }

    .product-card-price {
        font-size: 1.125rem;
    }

    .company-logo {
        width: 56px;
        height: 56px;
    }

    .company-name {
        font-size: 14px;
    }

    .purchase-item,
    .opportunity-card,
    .supplier-rating-card {
        padding: var(--space-md);
    }

    .indicator-card {
        padding: var(--space-md);
    }

    .indicator-value {
        font-size: 1.5rem;
    }

    .auth-modal-container {
        margin: var(--space-md);
        max-width: calc(100% - 32px);
    }

    .auth-modal-body {
        padding: var(--space-lg);
    }

    .auth-register-intro,
    .auth-captcha-row,
    .auth-sms-row {
        flex-direction: column;
    }

    .auth-account-switch {
        display: flex;
        width: 100%;
    }

    .auth-account-switch .btn {
        flex: 1;
        min-width: 0;
    }

    .auth-captcha-image,
    .auth-sms-action {
        width: 100%;
        min-width: 0;
    }

    .member-conversion-actions,
    .comment-action-buttons {
        width: 100%;
    }

    .member-conversion-actions .btn,
    .comment-action-buttons .btn {
        width: 100%;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-primary-custom {
    color: var(--accent-blue) !important;
}

.bg-primary-custom {
    background-color: var(--accent-blue) !important;
}

.border-primary-custom {
    border-color: var(--accent-blue) !important;
}

/* Smooth loading animation */
.fade-in {
    animation: fadeIn 0.5s ease;
}

/* Card hover effects enhancement */
.card-hover-lift {
    transition: var(--transition-base);
}

.card-hover-lift:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

/* Data update time */
.data-update-time {
    display: inline-flex;
    align-items: center;
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: var(--space-sm);
    gap: 4px;
}

.data-update-time i {
    color: var(--accent-blue);
    font-size: 12px;
}

/* Social proof elements */
.social-proof {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 12px;
    color: var(--text-tertiary);
    margin-top: var(--space-sm);
}

.social-proof i {
    color: var(--accent-blue);
}

/* Action buttons */
.action-buttons {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-top: var(--space-md);
}

.action-btn {
    flex: 1;
    min-width: 140px;
}

/* Print styles */
@media print {
    .navbar,
    .top-bar,
    .category-nav,
    .footer,
    .floating-chat,
    .floating-service,
    .floating-vip-entry {
        display: none !important;
    }

    .main-content {
        padding: 0;
    }

    body {
        background: white;
    }
}

/* ============================================
   TRUST ELEMENTS - Statistics & Certifications
   ============================================ */
.trust-section {
    background: white;
    padding: 60px 0;
    border-bottom: 1px solid var(--border-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.stat-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    border: 2px solid transparent;
}

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

.stat-icon {
    font-size: 3rem;
    color: var(--accent-orange);
    margin-bottom: 15px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 5px;
    line-height: 1;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Client Cases */
.clients-section {
    background: var(--bg-secondary);
    padding: 60px 0;
}

.client-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.client-card {
    background: white;
    padding: 30px 20px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-base);
    border: 1px solid var(--border-light);
}

.client-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-blue);
}

.client-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 15px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.client-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.client-industry {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-bottom: 10px;
}

.client-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Certifications */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.cert-card {
    background: white;
    padding: 25px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 2px solid var(--border-light);
    transition: var(--transition-base);
}

.cert-card:hover {
    border-color: var(--accent-orange);
    box-shadow: var(--shadow-md);
}

.cert-icon {
    font-size: 2.5rem;
    color: var(--accent-orange);
    margin-bottom: 15px;
}

.cert-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.cert-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Testimonials */
.testimonials-section {
    background: white;
    padding: 60px 0;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.testimonial-card {
    background: var(--bg-secondary);
    padding: 30px;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent-orange);
    transition: var(--transition-base);
}

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

.testimonial-content {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-rating {
    color: var(--warning);
    margin-bottom: 15px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.testimonial-info {
    flex: 1;
}

.testimonial-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 3px;
}

.testimonial-position {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Enhanced Product Cards */
.product-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-base);
    border: 1px solid var(--border-light);
    height: 100%;
    display: flex;
    flex-direction: column;
}

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

.product-card-img {
    position: relative;
    overflow: hidden;
}

.product-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 10;
}

.product-card-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
}

.product-card-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.product-card-title a:hover {
    color: var(--accent-blue);
}

.product-card-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.6;
    flex: 1;
}

.product-card-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-orange);
    margin-bottom: 15px;
}

.product-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-tertiary);
    padding-top: 15px;
    border-top: 1px solid var(--border-light);
}

.product-card-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .stat-value {
        font-size: 2rem;
    }
}

/* ============================================
   NEWS CARDS - 修复样式
   ============================================ */
.news-card {
    background: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-base);
    height: 100%;
    display: flex;
    flex-direction: column;
}

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

.news-card a {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.news-cover {
    width: 100%;
    height: 180px;
    background-size: cover;
    background-position: center;
    background-color: var(--bg-tertiary);
    position: relative;
}

.news-cover-placeholder {
    width: 100%;
    height: 180px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.news-cover-placeholder i {
    font-size: 4rem;
    color: var(--text-tertiary);
}

.news-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-summary {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-tertiary);
    padding-top: 12px;
    border-top: 1px solid var(--border-light);
}

.news-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 响应式优化 */
@media (max-width: 768px) {
    .news-cover,
    .news-cover-placeholder {
        height: 140px;
    }
    
    .news-content {
        padding: 15px;
    }
    
    .news-title {
        font-size: 0.95rem;
    }
}

/* PC Upgrade: topics + geo + procurement */
.pc-upgrade-section {
    padding: 24px 0 8px;
    background: radial-gradient(circle at 90% 10%, rgba(24, 144, 255, 0.12), transparent 35%);
}

.marketing-engine-section {
    padding: 8px 0 34px;
    background: linear-gradient(180deg, #f6f9fd 0%, #f1f6fb 100%);
    border-top: 1px solid #e6edf5;
    border-bottom: 1px solid #e6edf5;
}

.marketing-track-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 14px;
}

.marketing-track-card {
    display: block;
    border: 1px solid #dbe6f4;
    border-radius: 14px;
    padding: 16px;
    text-decoration: none;
    color: inherit;
    background: #fff;
    transition: var(--transition-fast);
}

.marketing-track-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-blue-light);
}

.marketing-track-card h3 {
    margin: 0 0 8px;
    font-size: 1.05rem;
}

.marketing-track-card p {
    margin: 0;
    font-size: 13px;
    line-height: 1.65;
    color: var(--text-secondary);
}

.marketing-track-card span {
    display: inline-block;
    margin-top: 10px;
    padding: 4px 8px;
    font-size: 12px;
    border-radius: 999px;
    background: #eef5ff;
    color: #1a62b7;
}

.trust-point-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.trust-point-card {
    background: #fff;
    border: 1px solid #e4ebf4;
    border-radius: 12px;
    padding: 14px;
}

.trust-point-card h4 {
    margin: 0 0 6px;
    font-size: 0.96rem;
    color: var(--primary);
}

.trust-point-card p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 13px;
}

.b2b-intro-card {
    background: linear-gradient(135deg, #0f2742 0%, #1a3a5c 60%, #245180 100%);
    border-radius: var(--radius-xl);
    color: #fff;
    padding: 28px;
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-lg);
}

.b2b-kicker {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 1px;
    padding: 4px 10px;
    border-radius: 99px;
    background: rgba(255, 255, 255, 0.18);
    margin-bottom: 10px;
}

.b2b-intro-main h2 {
    font-size: 1.65rem;
    margin: 0 0 10px;
}

.b2b-intro-main p {
    margin: 0;
    color: rgba(255, 255, 255, 0.88);
}

.b2b-intro-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-content: center;
}

.b2b-intro-actions a {
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 10px;
    padding: 10px 14px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.b2b-intro-actions a:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.12);
}

.procurement-stage-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.stage-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 16px;
}

.stage-step {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--accent-orange);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
}

.stage-card h3 {
    margin: 0 0 8px;
    font-size: 1rem;
}

.stage-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.6;
}

.topic-geo-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 14px;
}

.topic-panel,
.geo-panel {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 16px;
}

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

.panel-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

.panel-header a {
    font-size: 13px;
    color: var(--accent-blue);
    text-decoration: none;
}

.topic-card-list,
.geo-card-list {
    display: grid;
    gap: 10px;
}

.topic-card-item,
.geo-card-item {
    display: block;
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 12px;
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

.topic-card-item:hover,
.geo-card-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
    border-color: var(--accent-blue-light);
}

.topic-card-item h4,
.geo-card-item h4 {
    margin: 0 0 6px;
    font-size: 0.95rem;
}

.topic-card-item p,
.geo-card-item p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.5;
}

.geo-card-item span {
    display: inline-block;
    margin-top: 8px;
    background: #f2f8ff;
    color: var(--accent-blue);
    font-size: 12px;
    border-radius: 999px;
    padding: 4px 8px;
}

@media (max-width: 992px) {
    .procurement-stage-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .topic-geo-grid {
        grid-template-columns: 1fr;
    }

    .b2b-intro-card {
        flex-direction: column;
    }

    .marketing-track-grid {
        grid-template-columns: 1fr;
    }

    .trust-point-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   TECHNICAL CONTENT HUB
   ============================================ */
.home-knowledge-section {
    padding: 20px 0 36px;
    background:
        radial-gradient(circle at top left, rgba(24, 144, 255, 0.07), transparent 28%),
        linear-gradient(180deg, #f6f9fc 0%, #ffffff 100%);
}

.home-knowledge-intro {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-bottom: 22px;
    padding: 28px 30px;
    border-radius: 24px;
    background: linear-gradient(135deg, #102843 0%, #1c4268 52%, #275f95 100%);
    box-shadow: var(--shadow-xl);
    color: #fff;
}

.home-knowledge-kicker,
.knowledge-kicker,
.knowledge-module-kicker {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.home-knowledge-copy h3 {
    margin: 12px 0 8px;
    font-size: 30px;
}

.home-knowledge-copy p {
    margin: 0;
    max-width: 760px;
    color: rgba(255, 255, 255, 0.86);
}

.home-knowledge-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    white-space: nowrap;
}

.home-knowledge-link:hover {
    color: #fff;
    transform: translateY(-1px);
}

.home-knowledge-guide-grid,
.home-technical-grid,
.knowledge-anchor-grid {
    display: grid;
    gap: 16px;
}

.home-knowledge-guide-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-bottom: 18px;
}

.home-technical-topic-panel {
    margin-bottom: 18px;
    padding: 18px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(26, 58, 92, 0.08);
    box-shadow: var(--shadow-md);
}

.home-technical-topic-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.home-technical-topic-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 18px;
    border-radius: 18px;
    background: linear-gradient(180deg, #ffffff 0%, #f5f8fc 100%);
    border: 1px solid rgba(26, 58, 92, 0.08);
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

.home-technical-topic-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(24, 144, 255, 0.22);
}

.home-technical-topic-badge {
    display: inline-flex;
    align-self: flex-start;
    align-items: center;
    padding: 5px 10px;
    border-radius: 999px;
    background: rgba(24, 144, 255, 0.1);
    color: var(--accent-blue);
    font-size: 12px;
    font-weight: 700;
}

.home-technical-topic-card strong {
    font-size: 18px;
    line-height: 1.45;
}

.home-technical-topic-card p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

.home-technical-topic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.home-technical-topic-tags span {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: #eef4fb;
    color: var(--primary);
    border: 1px solid rgba(26, 58, 92, 0.08);
    font-size: 12px;
    font-weight: 600;
}

.home-knowledge-guide-card,
.knowledge-anchor-card {
    display: block;
    padding: 20px;
    border-radius: 18px;
    border: 1px solid rgba(26, 58, 92, 0.08);
    background: #fff;
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow-md);
    transition: var(--transition-fast);
}

.home-knowledge-guide-card:hover,
.knowledge-anchor-card:hover {
    transform: translateY(-3px);
    border-color: rgba(24, 144, 255, 0.3);
    box-shadow: var(--shadow-lg);
}

.home-knowledge-guide-card strong,
.knowledge-anchor-card strong {
    display: block;
    margin-bottom: 8px;
    font-size: 17px;
    line-height: 1.4;
}

.home-knowledge-guide-card p,
.knowledge-anchor-card p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.65;
}

.home-technical-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.home-technical-card {
    height: 100%;
    border-radius: 18px;
    border: 1px solid rgba(26, 58, 92, 0.08);
    background: linear-gradient(180deg, #ffffff 0%, #f7f9fc 100%);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.home-technical-card-link {
    display: flex;
    flex-direction: column;
    gap: 12px;
    height: 100%;
    padding: 20px;
    text-decoration: none;
    color: inherit;
}

.home-technical-card-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    font-size: 12px;
}

.home-technical-category {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    border-radius: 999px;
    background: #ecf5ff;
    color: var(--accent-blue);
    font-weight: 700;
}

.home-technical-card h3 {
    margin: 0;
    font-size: 18px;
    line-height: 1.45;
    color: var(--text-primary);
}

.home-technical-card p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.7;
    flex: 1;
}

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

.home-technical-tags span,
.knowledge-standard-list span {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: #f3f7fb;
    color: var(--primary);
    border: 1px solid rgba(26, 58, 92, 0.08);
    font-size: 12px;
    font-weight: 600;
}

.technical-topic-callout {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    padding: 22px 24px;
    border-radius: 22px;
    background: linear-gradient(135deg, #102843 0%, #1c4268 52%, #275f95 100%);
    box-shadow: var(--shadow-lg);
    color: #fff;
}

.technical-topic-callout-copy {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.technical-topic-callout-kicker {
    display: inline-flex;
    align-self: flex-start;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.technical-topic-callout h2 {
    margin: 0;
    font-size: 28px;
    line-height: 1.35;
}

.technical-topic-callout p {
    margin: 0;
    color: rgba(255, 255, 255, 0.86);
    line-height: 1.75;
}

.technical-topic-callout .home-technical-tags span {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.technical-topic-callout-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    white-space: nowrap;
}

.technical-topic-callout-link:hover {
    color: #fff;
    transform: translateY(-1px);
}

/* ============================================
   KNOWLEDGE MAPS PAGE
   ============================================ */
.knowledge-page {
    padding-bottom: 28px;
    background:
        radial-gradient(circle at top right, rgba(24, 144, 255, 0.08), transparent 30%),
        linear-gradient(180deg, #f4f8fc 0%, #ffffff 100%);
}

.knowledge-hero-section {
    padding: 20px 0 8px;
}

.knowledge-hero-card {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.7fr);
    gap: 20px;
    padding: 30px;
    border-radius: 28px;
    background: linear-gradient(135deg, #0f2740 0%, #184068 54%, #245d95 100%);
    color: #fff;
    box-shadow: var(--shadow-xl);
}

.knowledge-hero-copy h1 {
    margin: 14px 0 10px;
    font-size: 38px;
}

.knowledge-hero-copy p {
    margin: 0;
    max-width: 760px;
    color: rgba(255, 255, 255, 0.88);
    line-height: 1.8;
}

.knowledge-hero-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 18px;
}

.knowledge-hero-metrics span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    font-size: 13px;
}

.knowledge-hero-metrics strong {
    font-size: 16px;
}

.knowledge-hero-note {
    display: flex;
    flex-direction: column;
    gap: 10px;
    height: 100%;
    padding: 22px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.knowledge-hero-note strong {
    font-size: 18px;
}

.knowledge-hero-note span {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    width: fit-content;
}

.knowledge-anchor-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 20px;
}

.knowledge-anchor-card span {
    display: inline-block;
    margin-bottom: 10px;
    color: var(--accent-blue);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.knowledge-module-section {
    padding: 8px 0 22px;
}

.knowledge-module-card {
    margin-bottom: 24px;
    padding: 28px;
    border-radius: 24px;
    border: 1px solid rgba(26, 58, 92, 0.08);
    background: linear-gradient(180deg, #ffffff 0%, #f8fbfe 100%);
    box-shadow: var(--shadow-lg);
}

.knowledge-module-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.knowledge-module-head h2 {
    margin: 12px 0 8px;
    font-size: 32px;
}

.knowledge-module-head p {
    margin: 0;
    max-width: 760px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.knowledge-module-back {
    display: inline-flex;
    align-items: center;
    padding: 10px 14px;
    border-radius: 999px;
    background: #eef5fb;
    color: var(--primary);
    text-decoration: none;
    white-space: nowrap;
}

.knowledge-diagram-shell {
    margin-bottom: 22px;
    border-radius: 22px;
    padding: 16px;
    background: #f3f7fb;
    border: 1px solid rgba(26, 58, 92, 0.08);
}

.knowledge-diagram-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.knowledge-diagram-scroll svg {
    display: block;
    width: 100%;
    min-width: 980px;
    height: auto;
}

.knowledge-diagram-tip {
    margin-top: 10px;
    color: var(--text-tertiary);
    font-size: 12px;
}

.knowledge-detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.9fr);
    gap: 18px;
}

.knowledge-point-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.knowledge-point-card,
.knowledge-standard-card {
    padding: 18px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid rgba(26, 58, 92, 0.08);
    box-shadow: var(--shadow-sm);
}

.knowledge-point-card h3,
.knowledge-standard-card h3 {
    margin: 0 0 8px;
    font-size: 16px;
}

.knowledge-point-card p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

.knowledge-standard-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

@media (max-width: 1200px) {
    .home-technical-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .home-technical-topic-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .knowledge-anchor-grid,
    .home-knowledge-guide-grid,
    .knowledge-point-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 992px) {
    .home-knowledge-intro,
    .knowledge-hero-card,
    .knowledge-detail-grid,
    .knowledge-module-head,
    .technical-topic-callout {
        grid-template-columns: 1fr;
        flex-direction: column;
    }

    .home-knowledge-copy h3,
    .knowledge-module-head h2 {
        font-size: 26px;
    }

    .knowledge-hero-copy h1 {
        font-size: 30px;
    }
}

@media (max-width: 768px) {
    .home-knowledge-guide-grid,
    .home-technical-grid,
    .home-technical-topic-grid,
    .knowledge-anchor-grid,
    .knowledge-point-list {
        grid-template-columns: 1fr;
    }

    .home-knowledge-intro,
    .knowledge-hero-card,
    .knowledge-module-card,
    .technical-topic-callout {
        padding: 22px;
    }

    .technical-topic-callout h2 {
        font-size: 24px;
    }

    .knowledge-diagram-scroll svg {
        min-width: 760px;
    }
}