/* ============================================
   GEO副站 - Pharma-Tech 科技感设计 v6
   山东德圣医药科技有限公司 | 保健食品研发生产
   ============================================ */

/* ===== CSS Variables ===== */
:root {
    --color-primary: #0ea5a9;
    --color-primary-dark: #0f766e;
    --color-primary-light: #14b8a6;
    --color-accent: #3b82f6;
    --color-accent-dark: #2563eb;
    --color-navy: #0f172a;
    --color-navy-light: #1e293b;
    --color-navy-mid: #334155;
    --color-surface: #ffffff;
    --color-bg: #f8fafc;
    --color-bg-alt: #f1f5f9;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
    --shadow: 0 4px 12px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.08), 0 4px 8px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 48px rgba(0,0,0,0.1), 0 8px 16px rgba(0,0,0,0.04);
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-surface);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection { background: rgba(14, 165, 169, 0.18); color: var(--color-navy); }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 28px;
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 28px;
    display: flex;
    align-items: center;
    height: 60px;
}

.site-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-right: 40px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.01em;
    transition: color var(--transition-fast);
}
.site-name:hover { color: var(--color-primary); }

.site-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    height: 100%;
}

.site-nav a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    padding: 6px 16px;
    border-radius: var(--radius);
    transition: all var(--transition-fast);
    height: 36px;
    display: flex;
    align-items: center;
    position: relative;
    font-weight: 500;
}

.site-nav a:hover {
    color: var(--color-primary);
    background: rgba(14, 165, 169, 0.06);
}

.site-nav a.current {
    color: var(--color-primary);
    font-weight: 600;
    background: rgba(14, 165, 169, 0.1);
}

.site-nav a.current::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2.5px;
    background: var(--color-primary);
    border-radius: 2px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: auto;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}
.nav-toggle:hover { background: var(--color-bg); }
.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-navy);
    border-radius: 1px;
    margin: 4px 0;
    transition: all var(--transition);
}

/* ===== Hero Section ===== */
.page-top {
    position: relative;
    padding: 80px 0 60px;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 40%, #0f766e 100%);
    overflow: hidden;
    text-align: center;
}

/* Sub-page banner (shorter version) */
.page-banner-space {
    position: relative;
    padding: 48px 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 40%, #0f766e 100%);
    overflow: hidden;
    text-align: center;
}

.page-banner-space::before,
.page-top::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(14, 165, 169, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(14, 165, 169, 0.08) 0%, transparent 40%);
    pointer-events: none;
}

.page-banner-space::after,
.page-top::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.banner-overlay { display: none; }

.banner-content {
    position: relative;
    z-index: 1;
}

.banner-content h1 {
    font-size: 1.8rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.3;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, #ccfbf1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.banner-content p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.75);
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.7;
}

.banner-content p span {
    display: inline-block;
    margin: 0 12px;
}

/* Keep page-top container positioning */
.page-top .container {
    position: relative;
    z-index: 1;
}

.page-top h1 {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, #ccfbf1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-top p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.75;
}

/* ===== Stats Section ===== */
.stats-section {
    padding: 0 0 56px;
    margin-top: -28px;
    position: relative;
    z-index: 2;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stat-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
}

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

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

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

.stat-icon {
    font-size: 2rem;
    margin-bottom: 12px;
    display: block;
    line-height: 1;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-navy);
    line-height: 1.2;
    margin-bottom: 6px;
    font-variant-numeric: tabular-nums;
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* ===== Section ===== */
.section-padding { padding: 64px 0; }
.bg-light { background: var(--color-bg); }
.bg-white { background: var(--color-surface); }

.section-header {
    margin-bottom: 36px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 16px;
    flex-wrap: wrap;
}

.section-header h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-navy);
    letter-spacing: -0.01em;
    position: relative;
    padding-bottom: 12px;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 2px;
}

.section-header p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.section-more-link {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition);
    padding: 8px 16px;
    border-radius: var(--radius);
    font-weight: 500;
}

.section-more-link:hover {
    color: var(--color-primary);
    background: rgba(14, 165, 169, 0.06);
    gap: 10px;
}

.section-more-link::after {
    content: '→';
    transition: transform var(--transition);
}

.section-more-link:hover::after { transform: translateX(3px); }

/* ===== News Grid ===== */
.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.news-card {
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition);
    border-radius: var(--radius);
}

.news-card:first-child {
    grid-column: 1 / -1;
    padding: 28px;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 8px;
    box-shadow: var(--shadow-sm);
}

.news-card:hover {
    background: var(--color-bg);
    padding-left: 12px;
}

.news-card:first-child:hover {
    padding-left: 28px;
    background: var(--color-bg);
    box-shadow: var(--shadow);
    border-color: var(--color-primary);
}

.news-card:nth-child(even) { padding-left: 28px; }
.news-card:nth-child(even):hover { padding-left: 36px; }

.news-body h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-navy);
    line-height: 1.5;
    margin-bottom: 8px;
    transition: color var(--transition-fast);
}

.news-card:first-child .news-body h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.news-body h3 a { color: var(--color-navy); transition: color var(--transition-fast); }
.news-body h3 a:hover { color: var(--color-primary); }

.news-body p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
    margin-bottom: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
    font-size: 0.8rem;
}

.news-category {
    background: linear-gradient(135deg, rgba(14, 165, 169, 0.1), rgba(59, 130, 246, 0.08));
    color: var(--color-primary-dark);
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.01em;
}

.news-date { color: var(--color-text-muted); }

/* ===== Video Grid ===== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.video-card {
    transition: transform var(--transition);
}

.video-card:hover { transform: translateY(-6px); }

.video-card-cover {
    position: relative;
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, var(--color-navy-light), var(--color-navy-mid));
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 14px;
    transition: box-shadow var(--transition);
    box-shadow: var(--shadow-sm);
}

.video-card:hover .video-card-cover {
    box-shadow: var(--shadow-lg);
}

.video-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.video-card:hover .video-card-cover img { transform: scale(1.06); }

.video-play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    opacity: 0;
    transition: all var(--transition);
}

.video-card:hover .video-play-icon {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.video-play-icon svg circle {
    transition: fill var(--transition);
}

.video-card:hover .video-play-icon svg circle {
    fill: var(--color-primary);
}

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    color: #fff;
    font-size: 0.72rem;
    padding: 3px 8px;
    border-radius: 20px;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
    font-weight: 500;
}

.video-card-info h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-navy);
    line-height: 1.45;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-fast);
}

.video-card-info h3 a { color: var(--color-navy); }
.video-card-info h3 a:hover { color: var(--color-primary); }

.video-card-info p {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 8px;
}

.video-category-tag {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* ===== Case Grid ===== */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

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

.case-card-link { display: block; color: inherit; }

.case-card-image {
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, var(--color-navy-light), var(--color-navy-mid));
    overflow: hidden;
}

.case-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.case-card:hover .case-card-image img { transform: scale(1.05); }

.case-card-body {
    padding: 20px;
}

.case-card-body h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-navy);
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-fast);
}

.case-card-body h3 a { color: var(--color-navy); }
.case-card:hover .case-card-body h3 { color: var(--color-primary); }

.case-card-body p {
    font-size: 0.84rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 12px;
}

.case-industry-tag {
    display: inline-block;
    font-size: 0.72rem;
    color: var(--color-primary-dark);
    background: rgba(14, 165, 169, 0.08);
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: 0.01em;
}

.case-read-more {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
    font-weight: 500;
}
.case-card:hover .case-read-more { color: var(--color-primary); }

/* ===== FAQ ===== */
.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: 12px;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow);
}

.faq-item[open] {
    border-color: var(--color-primary);
    box-shadow: var(--shadow);
}

.faq-question {
    padding: 20px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-navy);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    transition: color var(--transition-fast);
    user-select: none;
}

.faq-question:hover { color: var(--color-primary); }
.faq-question::-webkit-details-marker { display: none; }

.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-left: 16px;
    transition: all var(--transition);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1;
    font-weight: 700;
}

.faq-item:hover .faq-icon { background: rgba(14, 165, 169, 0.1); color: var(--color-primary); }

.faq-item[open] .faq-icon {
    transform: rotate(45deg);
    background: var(--color-primary);
    color: #fff;
}

.faq-answer {
    padding: 0 24px 24px;
    animation: faqSlide 0.3s ease;
}

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

.faq-answer p {
    font-size: 0.92rem;
    color: var(--color-text-secondary);
    line-height: 1.85;
}

.faq-category { margin-bottom: 40px; }
.faq-category h2 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
    padding-left: 14px;
    border-left: 3px solid var(--color-primary);
}

/* ===== Filter Tags ===== */
.filter-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border);
    flex-wrap: wrap;
}

.filter-tag {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    padding: 8px 20px;
    border-radius: 24px;
    border: 1.5px solid var(--color-border);
    transition: all var(--transition);
    font-weight: 500;
}

.filter-tag:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(14, 165, 169, 0.04);
}

.filter-tag.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    border-color: transparent;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(14, 165, 169, 0.3);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 52px;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 10px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    font-weight: 500;
}

.pagination a:hover {
    background: var(--color-bg);
    color: var(--color-primary);
    border-color: var(--color-border);
}

.pagination .active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    box-shadow: 0 2px 8px rgba(14, 165, 169, 0.3);
}

.pagination .disabled { opacity: 0.25; pointer-events: none; }

/* ===== Breadcrumb ===== */
.breadcrumb-wrapper {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
}

.breadcrumb-item a { color: var(--color-text-muted); transition: color var(--transition-fast); }
.breadcrumb-item a:hover { color: var(--color-primary); }
.breadcrumb-item.active { color: var(--color-text-secondary); font-weight: 500; }
.breadcrumb-item + .breadcrumb-item::before { content: '/'; color: var(--color-border); margin-right: 0; }

/* ===== Video Detail ===== */
.video-player-wrapper {
    max-width: 880px;
    margin: 0 auto 36px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #000;
    aspect-ratio: 16 / 9;
    box-shadow: var(--shadow-xl);
}

.video-player-wrapper iframe,
.video-player-wrapper video { width: 100%; height: 100%; border: none; }

.video-detail-meta {
    max-width: 880px;
    margin: 0 auto 28px;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ===== Case Detail ===== */
.case-meta-info {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.88rem;
    color: var(--color-text-secondary);
}

.case-detail-section { margin-bottom: 36px; }

.case-detail-section h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}

.case-detail-section p {
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.9;
}

/* ===== Contact / Message Form ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 64px;
    align-items: start;
}

.contact-form-wrapper h3,
.contact-info-wrapper h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 24px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--color-primary);
    color: var(--color-navy);
    display: inline-block;
}

.form-group { margin-bottom: 22px; }
.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-surface);
    transition: all var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 169, 0.12);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    box-shadow: 0 4px 12px rgba(14, 165, 169, 0.25);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(14, 165, 169, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1.5px solid var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(14, 165, 169, 0.04);
}

.contact-details li {
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    display: flex;
    gap: 14px;
    align-items: baseline;
}

.contact-label {
    color: var(--color-text-muted);
    flex-shrink: 0;
    width: 60px;
    font-weight: 600;
    font-size: 0.82rem;
}

.contact-details a { color: var(--color-text-secondary); transition: color var(--transition-fast); }
.contact-details a:hover { color: var(--color-primary); }

/* ===== Article Content ===== */
.article-content {
    font-size: 0.95rem;
    line-height: 1.95;
    color: var(--color-text);
}

.article-content h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 40px 0 16px;
    color: var(--color-navy);
    letter-spacing: -0.01em;
}

.article-content p { margin-bottom: 20px; }

.article-content a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(14, 165, 169, 0.3);
    transition: text-decoration-color var(--transition-fast);
}

.article-content a:hover { text-decoration-color: var(--color-primary); }

.article-content img {
    border-radius: var(--radius-lg);
    margin: 24px 0;
    box-shadow: var(--shadow);
}

.article-content blockquote {
    border-left: 3px solid var(--color-primary);
    padding: 16px 24px;
    color: var(--color-text-secondary);
    margin: 24px 0;
    background: var(--color-bg);
    border-radius: 0 var(--radius) var(--radius) 0;
}

/* ===== CTA Section ===== */
.cta-section {
    background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light));
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

.cta-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
    position: relative;
}

.cta-section p {
    font-size: 1rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 28px;
    position: relative;
}

.cta-section .btn-primary {
    position: relative;
    font-size: 1rem;
    padding: 14px 36px;
    border-radius: var(--radius-xl);
}

/* ===== News Categories Nav ===== */
.news-categories {
    display: flex;
    gap: 8px;
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border);
    flex-wrap: wrap;
}

.news-categories li a {
    display: inline-block;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    padding: 8px 20px;
    border-radius: 24px;
    border: 1.5px solid var(--color-border);
    transition: all var(--transition);
    font-weight: 500;
}

.news-categories li a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(14, 165, 169, 0.04);
}

.news-categories li a.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    border-color: transparent;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(14, 165, 169, 0.3);
}

/* ===== Article Detail ===== */
.article-summary-box {
    background: var(--color-bg);
    border-left: 3px solid var(--color-primary);
    padding: 20px 24px;
    margin-bottom: 32px;
    border-radius: 0 var(--radius) var(--radius) 0;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.75;
}

.article-summary-box strong {
    color: var(--color-primary-dark);
    font-size: 0.85rem;
}

.article-meta-footer {
    display: flex;
    gap: 24px;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
    font-size: 0.82rem;
    color: var(--color-text-muted);
    flex-wrap: wrap;
}

.text-muted { color: var(--color-text-muted); }

/* ===== Footer ===== */
.site-footer {
    background: var(--color-navy);
    color: rgba(255,255,255,0.6);
    margin-top: 0;
}

.footer-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 40px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links { display: flex; gap: 28px; }
.footer-links a {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.55);
    transition: color var(--transition-fast);
    font-weight: 500;
}
.footer-links a:hover { color: var(--color-primary-light); }

.footer-copy p {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.35);
    line-height: 1.6;
}

/* ===== Scroll Animations ===== */
.fade-in-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 991px) {
    .nav-toggle { display: block; }

    .site-nav {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        padding: 16px 24px 20px;
        gap: 2px;
        height: auto;
    }

    .site-nav.open { display: flex; }

    .site-nav a {
        width: 100%;
        height: 42px;
        padding: 0 16px;
        border-radius: var(--radius);
    }

    .site-nav a.current::after { display: none; }

    .page-top { padding: 60px 0 44px; }
    .page-top h1 { font-size: 1.7rem; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .video-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .case-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }

    .section-header { flex-direction: column; align-items: flex-start; gap: 8px; }
}

@media (max-width: 767px) {
    .container { padding: 0 18px; }
    .header-inner { padding: 0 18px; height: 54px; }

    .page-top { padding: 48px 0 36px; }
    .page-top h1 { font-size: 1.4rem; }
    .page-top p { font-size: 0.9rem; }

    .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .stat-card { padding: 20px 14px; }
    .stat-value { font-size: 1.5rem; }

    .news-grid { grid-template-columns: 1fr; }
    .news-card:nth-child(even) { padding-left: 0; }
    .news-card:first-child { padding: 20px; }
    .news-card:hover { padding-left: 0; }
    .news-card:nth-child(even):hover { padding-left: 0; }

    .video-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .case-grid { grid-template-columns: 1fr; gap: 16px; }

    .section-padding { padding: 40px 0; }
    .section-header h2 { font-size: 1.15rem; }

    .footer-inner { flex-direction: column; align-items: flex-start; gap: 16px; padding: 28px 18px; }
    .footer-links { gap: 18px; flex-wrap: wrap; }

    .cta-section { padding: 40px 0; }
    .cta-section h2 { font-size: 1.3rem; }
}