/* ============================================
   网络议题问答索引站 - 全站样式表
   CSS前缀: b2s01k04n03-summit-
   Mobile-First响应式设计
   ============================================ */

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --b2s01k04n03-summit-primary: #1a2a6c;
    --b2s01k04n03-summit-secondary: #2d3a8c;
    --b2s01k04n03-summit-accent: #4a90d9;
    --b2s01k04n03-summit-dark: #0f1a3e;
    --b2s01k04n03-summit-light: #f8f9fc;
    --b2s01k04n03-summit-text: #2c3e50;
    --b2s01k04n03-summit-text-light: #5a6c7d;
    --b2s01k04n03-summit-border: #e1e8ed;
    --b2s01k04n03-summit-success: #27ae60;
    --b2s01k04n03-summit-warning: #f39c12;
    --b2s01k04n03-summit-white: #ffffff;
    --b2s01k04n03-summit-shadow: 0 2px 12px rgba(0,0,0,0.08);
    --b2s01k04n03-summit-radius: 8px;
    --b2s01k04n03-summit-transition: all 0.3s ease;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    color: var(--b2s01k04n03-summit-text);
    background-color: var(--b2s01k04n03-summit-light);
}

a {
    color: var(--b2s01k04n03-summit-accent);
    text-decoration: none;
    transition: var(--b2s01k04n03-summit-transition);
}

a:hover {
    color: var(--b2s01k04n03-summit-primary);
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   Header Navigation
   ============================================ */
.b2s01k04n03-summit-header {
    background: var(--b2s01k04n03-summit-white);
    box-shadow: var(--b2s01k04n03-summit-shadow);
    position: relative;
    z-index: 100;
}

.b2s01k04n03-summit-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.b2s01k04n03-summit-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.b2s01k04n03-summit-logo img {
    height: 40px;
    width: auto;
}

.b2s01k04n03-summit-logo-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--b2s01k04n03-summit-primary);
}

.b2s01k04n03-summit-nav-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.b2s01k04n03-summit-nav-toggle span {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--b2s01k04n03-summit-text);
    margin: 5px 0;
    transition: var(--b2s01k04n03-summit-transition);
    border-radius: 2px;
}

.b2s01k04n03-summit-nav-list {
    list-style: none;
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--b2s01k04n03-summit-white);
    box-shadow: var(--b2s01k04n03-summit-shadow);
    padding: 1rem 0;
}

.b2s01k04n03-summit-nav-list.active {
    display: block;
}

.b2s01k04n03-summit-nav-item {
    border-bottom: 1px solid var(--b2s01k04n03-summit-border);
}

.b2s01k04n03-summit-nav-item:last-child {
    border-bottom: none;
}

.b2s01k04n03-summit-link-element {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--b2s01k04n03-summit-text);
    font-weight: 500;
    transition: var(--b2s01k04n03-summit-transition);
}

.b2s01k04n03-summit-link-element:hover,
.b2s01k04n03-summit-link-element.active {
    color: var(--b2s01k04n03-summit-accent);
    background: var(--b2s01k04n03-summit-light);
    text-decoration: none;
}

/* ============================================
   Container & Layout
   ============================================ */
.b2s01k04n03-summit-container-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.b2s01k04n03-summit-section {
    padding: 3rem 0;
}

.b2s01k04n03-summit-section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--b2s01k04n03-summit-primary);
    text-align: center;
    margin-bottom: 1rem;
}

.b2s01k04n03-summit-section-subtitle {
    font-size: 1rem;
    color: var(--b2s01k04n03-summit-text-light);
    text-align: center;
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   Hero / Banner
   ============================================ */
.b2s01k04n03-summit-hero {
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--b2s01k04n03-summit-white);
    overflow: hidden;
}

.b2s01k04n03-summit-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26,42,108,0.85) 0%, rgba(45,58,140,0.75) 100%);
}

.b2s01k04n03-summit-hero-content {
    position: relative;
    z-index: 2;
    padding: 2rem 1rem;
    max-width: 800px;
}

.b2s01k04n03-summit-hero h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.b2s01k04n03-summit-hero p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.b2s01k04n03-summit-cta-btn {
    display: inline-block;
    padding: 0.85rem 2rem;
    background: var(--b2s01k04n03-summit-accent);
    color: var(--b2s01k04n03-summit-white);
    border-radius: var(--b2s01k04n03-summit-radius);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--b2s01k04n03-summit-transition);
    border: none;
    cursor: pointer;
}

.b2s01k04n03-summit-cta-btn:hover {
    background: var(--b2s01k04n03-summit-primary);
    color: var(--b2s01k04n03-summit-white);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(74,144,217,0.4);
}

.b2s01k04n03-summit-cta-btn--secondary {
    background: transparent;
    border: 2px solid var(--b2s01k04n03-summit-white);
}

.b2s01k04n03-summit-cta-btn--secondary:hover {
    background: var(--b2s01k04n03-summit-white);
    color: var(--b2s01k04n03-summit-primary);
}

/* ============================================
   Video Section
   ============================================ */
.b2s01k04n03-summit-video-section {
    background: var(--b2s01k04n03-summit-dark);
    padding: 2rem 0;
}

.b2s01k04n03-summit-video-wrapper {
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--b2s01k04n03-summit-radius);
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.b2s01k04n03-summit-video-wrapper video {
    width: 100%;
    display: block;
}

/* ============================================
   Cards Grid
   ============================================ */
.b2s01k04n03-summit-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.b2s01k04n03-summit-card {
    background: var(--b2s01k04n03-summit-white);
    border-radius: var(--b2s01k04n03-summit-radius);
    box-shadow: var(--b2s01k04n03-summit-shadow);
    overflow: hidden;
    transition: var(--b2s01k04n03-summit-transition);
}

.b2s01k04n03-summit-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.b2s01k04n03-summit-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.b2s01k04n03-summit-card-body {
    padding: 1.25rem;
}

.b2s01k04n03-summit-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--b2s01k04n03-summit-text);
    margin-bottom: 0.5rem;
}

.b2s01k04n03-summit-card-meta {
    font-size: 0.85rem;
    color: var(--b2s01k04n03-summit-text-light);
    margin-bottom: 0.75rem;
}

.b2s01k04n03-summit-card-excerpt {
    font-size: 0.95rem;
    color: var(--b2s01k04n03-summit-text-light);
    line-height: 1.6;
}

/* ============================================
   Features / Advantages
   ============================================ */
.b2s01k04n03-summit-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.b2s01k04n03-summit-feature-item {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--b2s01k04n03-summit-white);
    border-radius: var(--b2s01k04n03-summit-radius);
    box-shadow: var(--b2s01k04n03-summit-shadow);
    transition: var(--b2s01k04n03-summit-transition);
}

.b2s01k04n03-summit-feature-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.b2s01k04n03-summit-feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--b2s01k04n03-summit-accent), var(--b2s01k04n03-summit-primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--b2s01k04n03-summit-white);
    font-size: 1.5rem;
}

.b2s01k04n03-summit-feature-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--b2s01k04n03-summit-primary);
}

.b2s01k04n03-summit-feature-desc {
    font-size: 0.95rem;
    color: var(--b2s01k04n03-summit-text-light);
}

/* ============================================
   FAQ Section
   ============================================ */
.b2s01k04n03-summit-faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.b2s01k04n03-summit-faq-item {
    background: var(--b2s01k04n03-summit-white);
    border-radius: var(--b2s01k04n03-summit-radius);
    margin-bottom: 1rem;
    box-shadow: var(--b2s01k04n03-summit-shadow);
    overflow: hidden;
}

.b2s01k04n03-summit-faq-question {
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--b2s01k04n03-summit-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.b2s01k04n03-summit-faq-question::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    transition: var(--b2s01k04n03-summit-transition);
}

.b2s01k04n03-summit-faq-item.active .b2s01k04n03-summit-faq-question::after {
    transform: rotate(45deg);
}

.b2s01k04n03-summit-faq-answer {
    padding: 0 1.5rem 1.25rem;
    color: var(--b2s01k04n03-summit-text-light);
    line-height: 1.8;
    display: none;
}

.b2s01k04n03-summit-faq-item.active .b2s01k04n03-summit-faq-answer {
    display: block;
}

/* ============================================
   Interactive Tool - Resource Filter
   ============================================ */
.b2s01k04n03-summit-filter-tool {
    background: var(--b2s01k04n03-summit-white);
    border-radius: var(--b2s01k04n03-summit-radius);
    padding: 2rem;
    box-shadow: var(--b2s01k04n03-summit-shadow);
}

.b2s01k04n03-summit-filter-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.b2s01k04n03-summit-filter-btn {
    padding: 0.5rem 1.25rem;
    border: 2px solid var(--b2s01k04n03-summit-border);
    border-radius: 25px;
    background: var(--b2s01k04n03-summit-white);
    color: var(--b2s01k04n03-summit-text);
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--b2s01k04n03-summit-transition);
}

.b2s01k04n03-summit-filter-btn:hover,
.b2s01k04n03-summit-filter-btn.active {
    background: var(--b2s01k04n03-summit-accent);
    border-color: var(--b2s01k04n03-summit-accent);
    color: var(--b2s01k04n03-summit-white);
}

/* ============================================
   Trust / Commercial Section
   ============================================ */
.b2s01k04n03-summit-trust-section {
    background: var(--b2s01k04n03-summit-white);
}

.b2s01k04n03-summit-trust-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    text-align: center;
}

.b2s01k04n03-summit-trust-item {
    padding: 1.5rem;
}

.b2s01k04n03-summit-trust-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--b2s01k04n03-summit-accent);
    margin-bottom: 0.25rem;
}

.b2s01k04n03-summit-trust-label {
    font-size: 0.9rem;
    color: var(--b2s01k04n03-summit-text-light);
}

/* ============================================
   Breadcrumb
   ============================================ */
.b2s01k04n03-summit-breadcrumb {
    padding: 1rem 0;
    font-size: 0.9rem;
}

.b2s01k04n03-summit-breadcrumb-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.b2s01k04n03-summit-breadcrumb-list li::after {
    content: '>';
    margin-left: 0.5rem;
    color: var(--b2s01k04n03-summit-text-light);
}

.b2s01k04n03-summit-breadcrumb-list li:last-child::after {
    content: '';
}

.b2s01k04n03-summit-breadcrumb-list li:last-child a {
    color: var(--b2s01k04n03-summit-text-light);
    pointer-events: none;
}

/* ============================================
   Article Content
   ============================================ */
.b2s01k04n03-summit-article-block {
    background: var(--b2s01k04n03-summit-white);
    border-radius: var(--b2s01k04n03-summit-radius);
    padding: 2rem;
    box-shadow: var(--b2s01k04n03-summit-shadow);
    margin-bottom: 2rem;
}

.b2s01k04n03-summit-article-block h2 {
    font-size: 1.5rem;
    color: var(--b2s01k04n03-summit-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--b2s01k04n03-summit-border);
}

.b2s01k04n03-summit-article-block h3 {
    font-size: 1.2rem;
    color: var(--b2s01k04n03-summit-secondary);
    margin: 1.5rem 0 0.75rem;
}

.b2s01k04n03-summit-article-block p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.b2s01k04n03-summit-article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--b2s01k04n03-summit-border);
    font-size: 0.9rem;
    color: var(--b2s01k04n03-summit-text-light);
}

/* ============================================
   Form Styles
   ============================================ */
.b2s01k04n03-summit-form-group {
    margin-bottom: 1.25rem;
}

.b2s01k04n03-summit-form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--b2s01k04n03-summit-text);
}

.b2s01k04n03-summit-form-input,
.b2s01k04n03-summit-form-textarea,
.b2s01k04n03-summit-form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--b2s01k04n03-summit-border);
    border-radius: var(--b2s01k04n03-summit-radius);
    font-size: 1rem;
    transition: var(--b2s01k04n03-summit-transition);
    font-family: inherit;
}

.b2s01k04n03-summit-form-input:focus,
.b2s01k04n03-summit-form-textarea:focus,
.b2s01k04n03-summit-form-select:focus {
    outline: none;
    border-color: var(--b2s01k04n03-summit-accent);
    box-shadow: 0 0 0 3px rgba(74,144,217,0.1);
}

.b2s01k04n03-summit-form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* ============================================
   Footer
   ============================================ */
.b2s01k04n03-summit-footer {
    background: var(--b2s01k04n03-summit-dark);
    color: rgba(255,255,255,0.8);
    padding: 3rem 0 1.5rem;
}

.b2s01k04n03-summit-footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.b2s01k04n03-summit-footer-col h4 {
    color: var(--b2s01k04n03-summit-white);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--b2s01k04n03-summit-accent);
    display: inline-block;
}

.b2s01k04n03-summit-footer-col ul {
    list-style: none;
}

.b2s01k04n03-summit-footer-col ul li {
    margin-bottom: 0.5rem;
}

.b2s01k04n03-summit-footer-col ul li a {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

.b2s01k04n03-summit-footer-col ul li a:hover {
    color: var(--b2s01k04n03-summit-accent);
    text-decoration: none;
}

.b2s01k04n03-summit-footer-col p {
    font-size: 0.9rem;
    line-height: 1.8;
    color: rgba(255,255,255,0.7);
}

.b2s01k04n03-summit-footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1.5rem;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

.b2s01k04n03-summit-social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.b2s01k04n03-summit-social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.8);
    transition: var(--b2s01k04n03-summit-transition);
    font-size: 0.85rem;
    font-weight: 600;
}

.b2s01k04n03-summit-social-links a:hover {
    background: var(--b2s01k04n03-summit-accent);
    color: var(--b2s01k04n03-summit-white);
    text-decoration: none;
}

/* ============================================
   Timeline
   ============================================ */
.b2s01k04n03-summit-timeline {
    position: relative;
    padding-left: 2rem;
}

.b2s01k04n03-summit-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--b2s01k04n03-summit-accent);
}

.b2s01k04n03-summit-timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 1.5rem;
}

.b2s01k04n03-summit-timeline-item::before {
    content: '';
    position: absolute;
    left: -2.35rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--b2s01k04n03-summit-accent);
    border: 3px solid var(--b2s01k04n03-summit-light);
}

.b2s01k04n03-summit-timeline-year {
    font-weight: 700;
    color: var(--b2s01k04n03-summit-accent);
    margin-bottom: 0.25rem;
}

/* ============================================
   Page Banner (inner pages)
   ============================================ */
.b2s01k04n03-summit-page-banner {
    background: linear-gradient(135deg, var(--b2s01k04n03-summit-primary), var(--b2s01k04n03-summit-secondary));
    padding: 3rem 1rem;
    text-align: center;
    color: var(--b2s01k04n03-summit-white);
}

.b2s01k04n03-summit-page-banner h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.b2s01k04n03-summit-page-banner p {
    font-size: 1rem;
    opacity: 0.85;
}

/* ============================================
   Responsive: 480px
   ============================================ */
@media (min-width: 480px) {
    .b2s01k04n03-summit-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .b2s01k04n03-summit-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================
   Responsive: 768px
   ============================================ */
@media (min-width: 768px) {
    .b2s01k04n03-summit-hero h1 {
        font-size: 2.5rem;
    }

    .b2s01k04n03-summit-section-title {
        font-size: 2.2rem;
    }

    .b2s01k04n03-summit-footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .b2s01k04n03-summit-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .b2s01k04n03-summit-trust-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .b2s01k04n03-summit-page-banner h1 {
        font-size: 2.5rem;
    }
}

/* ============================================
   Responsive: 992px
   ============================================ */
@media (min-width: 992px) {
    .b2s01k04n03-summit-nav-toggle {
        display: none;
    }

    .b2s01k04n03-summit-nav-list {
        display: flex !important;
        position: static;
        box-shadow: none;
        padding: 0;
        gap: 0;
    }

    .b2s01k04n03-summit-nav-item {
        border-bottom: none;
    }

    .b2s01k04n03-summit-link-element {
        padding: 0.5rem 1rem;
    }

    .b2s01k04n03-summit-link-element:hover {
        background: transparent;
    }

    .b2s01k04n03-summit-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .b2s01k04n03-summit-features {
        grid-template-columns: repeat(3, 1fr);
    }

    .b2s01k04n03-summit-footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .b2s01k04n03-summit-hero {
        min-height: 500px;
    }

    .b2s01k04n03-summit-hero h1 {
        font-size: 3rem;
    }
}

/* ============================================
   Responsive: 1200px
   ============================================ */
@media (min-width: 1200px) {
    .b2s01k04n03-summit-container-wrapper {
        padding: 0 2rem;
    }

    .b2s01k04n03-summit-hero {
        min-height: 600px;
    }

    .b2s01k04n03-summit-hero h1 {
        font-size: 3.5rem;
    }

    .b2s01k04n03-summit-section {
        padding: 4rem 0;
    }
}

/* ============================================
   Utility Classes
   ============================================ */
.b2s01k04n03-summit-text-center {
    text-align: center;
}

.b2s01k04n03-summit-mt-2 {
    margin-top: 2rem;
}

.b2s01k04n03-summit-mb-2 {
    margin-bottom: 2rem;
}

.b2s01k04n03-summit-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--b2s01k04n03-summit-accent);
    color: var(--b2s01k04n03-summit-white);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.b2s01k04n03-summit-blockquote {
    border-left: 4px solid var(--b2s01k04n03-summit-accent);
    padding: 1.5rem;
    margin: 1.5rem 0;
    background: var(--b2s01k04n03-summit-light);
    border-radius: 0 var(--b2s01k04n03-summit-radius) var(--b2s01k04n03-summit-radius) 0;
    font-style: italic;
    color: var(--b2s01k04n03-summit-text);
}

/* Related recommendations */
.b2s01k04n03-summit-related {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--b2s01k04n03-summit-border);
}

.b2s01k04n03-summit-related h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--b2s01k04n03-summit-primary);
}

.b2s01k04n03-summit-related-list {
    list-style: none;
}

.b2s01k04n03-summit-related-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--b2s01k04n03-summit-border);
}

.b2s01k04n03-summit-related-list li:last-child {
    border-bottom: none;
}

/* Tag list */
.b2s01k04n03-summit-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.b2s01k04n03-summit-tag {
    padding: 0.25rem 0.75rem;
    background: var(--b2s01k04n03-summit-light);
    border: 1px solid var(--b2s01k04n03-summit-border);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--b2s01k04n03-summit-text-light);
}

/* Contact info block */
.b2s01k04n03-summit-contact-info {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .b2s01k04n03-summit-contact-info {
        grid-template-columns: 1fr 1fr;
    }
}

.b2s01k04n03-summit-contact-item {
    padding: 1.5rem;
    background: var(--b2s01k04n03-summit-white);
    border-radius: var(--b2s01k04n03-summit-radius);
    box-shadow: var(--b2s01k04n03-summit-shadow);
}

.b2s01k04n03-summit-contact-item h4 {
    color: var(--b2s01k04n03-summit-primary);
    margin-bottom: 0.5rem;
}