:root {
    --primary-color: #7C3AED;
    --secondary-color: #5B21B6;
    --accent-color: #06D6A0;
    --accent-dark: #059669;
    --text-color: #1E293B;
    --text-muted: #64748B;
    --light-bg: #F5F3FF;
    --surface: #FFFFFF;
    --dark-bg: #1E1B4B;
    --hero-bg: #0F0A2E;
    --gray-100: #F8FAFC;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-600: #64748B;
    --gray-700: #475569;
    --gray-800: #334155;
    --gray-900: #0F172A;
    --transition-speed: 0.3s;
    --transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 8px rgba(124, 58, 237, 0.08);
    --shadow-md: 0 6px 20px rgba(124, 58, 237, 0.1);
    --shadow-lg: 0 12px 36px rgba(15, 10, 46, 0.12);
    --card-border: 1px solid rgba(124, 58, 237, 0.1);
    --card-padding: 1.5rem;
    --section-padding: 72px;
    --inner-gap: 1rem;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, sans-serif;
    color: var(--text-color);
    line-height: 1.7;
    background: var(--surface);
    overflow-x: hidden;
}

.z98c45container.container {
    max-width: 1140px;
}

.z98c45row.row > [class*="col"] {
    min-width: 0;
}

/* ===== 通用卡片基类 ===== */
.z98c45about-card,
.z98c45feature-card,
.z98c45stat-item,
.z98c45download-card,
.z98c45security-card,
.z98c45certificate-card,
.z98c45faq-item,
.z98c45article-card {
    border: var(--card-border);
    overflow: hidden;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* ===== 通用区块标题 ===== */
.z98c45section-header {
    margin-bottom: 2.5rem;
}

.z98c45section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0.75rem 0 0.5rem;
}

.z98c45section-tag {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: rgba(124, 58, 237, 0.1);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50px;
    letter-spacing: 0.02em;
}

.z98c45section-tag.z98c45tag-light {
    background: rgba(6, 214, 160, 0.15);
    color: var(--accent-color);
}

.z98c45section-desc {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.8;
}

.z98c45section-desc.z98c45desc-light {
    color: rgba(255, 255, 255, 0.75);
}

/* ===== 导航栏 ===== */
.z98c45navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(124, 58, 237, 0.08);
    padding: 0.85rem 0;
    padding-top: max(0.85rem, env(safe-area-inset-top));
    position: sticky;
    top: 0;
    z-index: 1000;
}

.z98c45navbar-brand img {
    height: 45px;
}

.z98c45nav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color var(--transition-speed);
    border-radius: var(--radius-sm);
}

.z98c45nav-link:hover {
    color: var(--primary-color) !important;
}

/* ===== 英雄区域 ===== */
.z98c45hero-section {
    background: var(--hero-bg);
    color: white;
    padding: 64px 0 80px;
    position: relative;
    overflow: hidden;
}

.z98c45hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 40%, rgba(124, 58, 237, 0.35) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 20%, rgba(6, 214, 160, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 50% 40% at 60% 80%, rgba(91, 33, 182, 0.25) 0%, transparent 50%);
    pointer-events: none;
}

.z98c45hero-content {
    position: relative;
    z-index: 2;
}

.z98c45hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(6, 214, 160, 0.12);
    border: 1px solid rgba(6, 214, 160, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--accent-color);
    margin-bottom: 1.25rem;
}

.z98c45hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.15;
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.85) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.z98c45hero-subtitle {
    font-size: 1.15rem;
    margin-bottom: 1rem;
    opacity: 0.9;
    line-height: 1.7;
}

.z98c45hero-desc {
    font-size: 0.95rem;
    opacity: 0.75;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    max-width: 540px;
}

.z98c45hero-desc strong {
    color: var(--accent-color);
    font-weight: 600;
}

.z98c45hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.z98c45hero-stat {
    display: flex;
    flex-direction: column;
}

.z98c45hero-stat-num {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.z98c45hero-stat-label {
    font-size: 0.8rem;
    opacity: 0.65;
    margin-top: 0.15rem;
}

.z98c45hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.z98c45hero-buttons .btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: all var(--transition-speed);
}

.z98c45hero-buttons .btn-light {
    background: white;
    color: var(--primary-color);
    border: none;
}

.z98c45hero-buttons .btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
}

.z98c45hero-buttons .btn-primary,
.z98c45btn-download {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
    border: none;
    color: var(--hero-bg);
}

.z98c45hero-buttons .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(6, 214, 160, 0.35);
}

.z98c45hero-buttons .btn-outline-light {
    border: 1.5px solid rgba(255, 255, 255, 0.35);
    color: white;
    background: transparent;
}

.z98c45hero-buttons .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

/* 英雄视觉区 */
.z98c45hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    max-width: 100%;
    overflow: hidden;
    padding: 1rem 0.5rem;
}

.z98c45hero-glow {
    position: absolute;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.4) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(40px);
    pointer-events: none;
}

.z98c45hero-image-container {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.z98c45hero-image {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
    object-fit: contain;
}

.z98c45hero-float-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: white;
    z-index: 3;
    animation: floatCard 4s ease-in-out infinite;
}

.z98c45hero-float-card i {
    color: var(--accent-color);
    font-size: 1.1rem;
}

.z98c45float-1 {
    top: 12%;
    right: 8%;
    animation-delay: 0s;
}

.z98c45float-2 {
    bottom: 18%;
    left: 8%;
    animation-delay: 2s;
}

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

.z98c45hero-image-shadow {
    display: none;
}

/* ===== 平台介绍 ===== */
.z98c45about-section {
    padding: var(--section-padding) 0;
    background: var(--surface);
}

.z98c45about-content p {
    color: var(--text-muted);
    margin-bottom: 1rem;
    line-height: 1.85;
}

.z98c45about-content strong {
    color: var(--primary-color);
}

.z98c45about-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
}

.z98c45about-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.6rem 0;
    color: var(--gray-700);
    font-size: 0.95rem;
}

.z98c45about-list li i {
    color: var(--accent-color);
    font-size: 1.1rem;
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.z98c45about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--inner-gap);
}

.z98c45about-card {
    background: var(--light-bg);
    border-radius: var(--radius-md);
    padding: var(--card-padding);
    transition: all var(--transition-speed);
    height: 100%;
}

.z98c45about-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: rgba(124, 58, 237, 0.18);
}

.z98c45about-card-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

.z98c45about-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--gray-900);
}

.z98c45about-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.6;
}

/* ===== 特点区域 ===== */
.z98c45features-section {
    padding: var(--section-padding) 0;
    background: var(--light-bg);
}

.z98c45feature-card {
    background: var(--surface);
    border-radius: var(--radius-md);
    padding: var(--card-padding);
    height: 100%;
    transition: all var(--transition-speed);
    box-shadow: var(--shadow-sm);
}

.z98c45feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: rgba(124, 58, 237, 0.18);
}

.z98c45feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.12), rgba(6, 214, 160, 0.1));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 1.25rem;
}

.z98c45feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--gray-900);
}

.z98c45feature-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.75;
}

.z98c45feature-card p strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* ===== 统计数据 ===== */
.z98c45stats-section {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, #2E1065 50%, var(--secondary-color) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.z98c45stats-section::before {
    content: '';
    position: absolute;
    inset: 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;
}

.z98c45stats-header h2 {
    color: white;
}

.z98c45stat-item {
    text-align: center;
    padding: 1.25rem 1rem;
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    backdrop-filter: blur(8px);
    transition: all var(--transition-speed);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.z98c45stat-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

.z98c45stat-icon {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: 0.75rem;
}

.z98c45stat-number {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.25rem;
    color: white;
    line-height: 1.2;
}

.z98c45stat-label {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* ===== 注册引导 ===== */
.z98c45register-section {
    padding: var(--section-padding) 0;
    background: var(--surface);
}

.z98c45register-wrap {
    background: linear-gradient(135deg, var(--light-bg) 0%, rgba(6, 214, 160, 0.06) 100%);
    border: var(--card-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    overflow: hidden;
}

.z98c45register-wrap h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0.75rem 0 1rem;
    color: var(--gray-900);
}

.z98c45register-desc {
    color: var(--text-muted);
    line-height: 1.85;
    margin-bottom: 2rem;
}

.z98c45register-desc strong {
    color: var(--primary-color);
}

.z98c45register-steps {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.z98c45step-item {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.z98c45step-num {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.z98c45step-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--gray-900);
}

.z98c45step-content p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.65;
}

.z98c45register-cta {
    background: var(--surface);
    border-radius: var(--radius-md);
    padding: var(--card-padding);
    box-shadow: var(--shadow-sm);
    border: var(--card-border);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.z98c45register-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: block;
}

.z98c45register-cta h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.z98c45register-cta p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

/* ===== 下载区域 ===== */
.z98c45download-section {
    padding: var(--section-padding) 0;
    background: var(--light-bg);
}

.z98c45download-card {
    background: var(--surface);
    border-radius: var(--radius-md);
    padding: var(--card-padding);
    height: 100%;
    transition: all var(--transition-speed);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.z98c45download-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.z98c45download-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.z98c45download-card-header > div:last-child {
    flex: 1;
    min-width: 0;
}

.z98c45download-card-header h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0;
    color: var(--gray-900);
    line-height: 1.35;
}

.z98c45platform-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0.2rem 0 0;
}

.z98c45platform-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.z98c45pc-icon {
    background: linear-gradient(135deg, #0078D4, #005A9E);
    color: white;
}

.z98c45android-icon {
    background: linear-gradient(135deg, #3DDC84, #2BB673);
    color: white;
}

.z98c45ios-icon {
    background: linear-gradient(135deg, #007AFF, #0056b3);
    color: white;
}

.z98c45download-info {
    background: var(--light-bg);
    padding: 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.25rem;
    flex-grow: 1;
    border: none;
}

.z98c45info-item {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    margin-bottom: 0.65rem;
    font-size: 0.9rem;
    color: var(--gray-700);
}

.z98c45info-item:last-child {
    margin-bottom: 0;
}

.z98c45info-item i {
    color: var(--accent-dark);
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.z98c45download-action .btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    transition: all var(--transition-speed);
}

.z98c45download-action .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.3);
}

.z98c45download-note {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding: 1rem 1.25rem;
    background: rgba(124, 58, 237, 0.06);
    border: var(--card-border);
    border-left: 3px solid var(--primary-color);
    border-radius: var(--radius-sm);
}

.z98c45download-note i {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.z98c45download-note p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.75;
}

.z98c45download-note strong {
    color: var(--primary-color);
}

/* ===== 安全保障 ===== */
.z98c45security-section {
    padding: var(--section-padding) 0;
    background: var(--surface);
}

.z98c45security-card {
    background: var(--light-bg);
    border-radius: var(--radius-md);
    padding: var(--card-padding);
    height: 100%;
    transition: all var(--transition-speed);
}

.z98c45security-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.z98c45security-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin: 0 auto 1.25rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.z98c45security-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 1.25rem;
    color: var(--gray-900);
}

.z98c45security-features {
    background: var(--surface);
    padding: 1rem;
    border-radius: var(--radius-sm);
    border: none;
}

.z98c45feature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    margin-bottom: 0.6rem;
    font-size: 0.875rem;
    color: var(--gray-700);
}

.z98c45feature-item:last-child {
    margin-bottom: 0;
}

.z98c45feature-item i {
    color: var(--accent-dark);
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.z98c45security-certificates {
    margin-top: 2.5rem;
}

.z98c45certificate-card {
    background: var(--light-bg);
    border-radius: var(--radius-md);
    padding: var(--card-padding);
    text-align: center;
    transition: all var(--transition-speed);
    height: 100%;
}

.z98c45certificate-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.z98c45certificate-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
    color: white;
}

.z98c45certificate-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.z98c45certificate-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
}

/* ===== FAQ ===== */
.z98c45faq-section {
    padding: var(--section-padding) 0;
    background: var(--light-bg);
}

.z98c45faq-item {
    background: var(--surface);
    border-radius: var(--radius-md);
    padding: var(--card-padding);
    height: 100%;
    transition: all var(--transition-speed);
    box-shadow: var(--shadow-sm);
}

.z98c45faq-item:hover {
    border-color: rgba(124, 58, 237, 0.18);
    box-shadow: var(--shadow-md);
}

.z98c45faq-q {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.z98c45faq-q i {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-top: 0.1rem;
    flex-shrink: 0;
}

.z98c45faq-q h5 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
    color: var(--gray-900);
    line-height: 1.4;
}

.z98c45faq-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.75;
    padding-left: 1.85rem;
}

.z98c45faq-item p strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* ===== 文章板块 ===== */
.z98c45article-section {
    padding: var(--section-padding) 0;
    background: var(--surface);
}

.z98c45article-section .z98c45row {
    --bs-gutter-x: 0.75rem;
    --bs-gutter-y: 0.75rem;
}

.z98c45article-card {
    border-radius: var(--radius-md);
    transition: all var(--transition-speed);
    box-shadow: var(--shadow-sm);
    margin-bottom: 0;
}

.z98c45article-card .card-body {
    padding: 0.875rem;
}

.z98c45article-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.z98c45article-thumb-wrap {
    overflow: hidden;
}

.z98c45thumb-home {
    height: 120px;
    object-fit: cover;
    width: 100%;
    transition: transform var(--transition-speed);
}

.z98c45article-card:hover .z98c45thumb-home {
    transform: scale(1.05);
}

.z98c45article-meta {
    margin-bottom: 0.5rem;
}

.z98c45article-title {
    font-size: 0.95rem;
    line-height: 1.45;
    margin: 0;
}

.z98c45article-title a {
    color: var(--gray-900);
    transition: color var(--transition-speed);
}

.z98c45article-title a:hover {
    color: var(--primary-color);
}

.z98c45btn-more {
    border-color: var(--primary-color);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-weight: 600;
    white-space: nowrap;
}

.z98c45btn-more:hover {
    background: var(--primary-color);
    color: white;
}

/* ===== 按钮通用 ===== */
.btn {
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
    white-space: normal;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.3);
}

.btn:active {
    transform: scale(0.98);
}

.btn-outline-primary {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* ===== 页脚 ===== */
.z98c45footer {
    background: var(--gray-900);
    padding: 60px 0 30px;
    color: rgba(255, 255, 255, 0.7);
}

.z98c45footer-brand img {
    max-width: 100%;
    height: auto;
}

.z98c45footer-title {
    color: white;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.z98c45footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z98c45footer-links li {
    margin-bottom: 0.6rem;
}

.z98c45footer-link {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color var(--transition-speed);
    font-size: 0.9rem;
}

.z98c45footer-link:hover {
    color: var(--accent-color);
}

.z98c45footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.z98c45footer-bottom a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color var(--transition-speed);
}

.z98c45footer-bottom a:hover {
    color: var(--accent-color);
}

.z98c45friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.z98c45friend-links li {
    margin: 0;
}

.z98c45friend-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-speed);
    word-break: break-all;
}

.z98c45friend-links a:hover {
    color: var(--accent-color);
}

.z98c45footer-bottom p {
    line-height: 1.8;
    word-break: break-word;
}

/* ===== 滚动 & 动画 ===== */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

.z98c45hero-content,
.z98c45feature-card,
.z98c45download-card,
.z98c45faq-item {
    animation: fadeIn 0.6s var(--transition-easing) forwards;
}

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

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

input:focus, select:focus, textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(124, 58, 237, 0.2);
}

/* ===== 导航栏响应式 ===== */
.navbar-toggler {
    border: none;
    padding: 0.5rem;
}

.navbar-collapse {
    background: white;
    padding: 1rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
}

/* ===== 响应式 - 大屏 ===== */
@media (min-width: 1200px) {
    .container { max-width: 1140px; }
    .z98c45hero-title { font-size: 3.25rem; }
}

/* ===== 响应式 - 平板 ===== */
@media (max-width: 991px) {
    :root { --section-padding: 56px; --card-padding: 1.25rem; }

    .z98c45hero-section { padding: 48px 0 64px; }
    .z98c45hero-section .row { --bs-gutter-y: 2rem; }
    .z98c45hero-title { font-size: 2.5rem; }
    .z98c45hero-visual { min-height: 220px; margin-top: 0; padding: 0.5rem; }
    .z98c45hero-image { max-width: 220px; }
    .z98c45float-1 { right: 2%; top: 8%; }
    .z98c45float-2 { left: 2%; bottom: 12%; }
    .z98c45hero-float-card { font-size: 0.8rem; padding: 0.5rem 0.75rem; }
    .z98c45about-grid { grid-template-columns: 1fr 1fr; }
    .z98c45register-wrap { padding: 1.5rem; }
    .z98c45register-wrap h2 { font-size: 1.5rem; }
    .z98c45section-header h2 { font-size: 1.75rem; }
    .z98c45footer { text-align: center; }
}

/* ===== 响应式 - 手机 ===== */
@media (max-width: 767px) {
    :root { --section-padding: 48px; --card-padding: 1.125rem; }

    /* 导航 */
    .z98c45navbar { padding: 0.5rem 0; }
    .z98c45navbar-brand img { height: 38px; }
    .z98c45navbar .navbar-collapse {
        margin-top: 0.5rem;
        max-height: 70vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        width: 100%;
    }
    .z98c45navbar .container { padding-left: 12px; padding-right: 12px; }
    .z98c45navbar .navbar-nav .nav-link {
        padding: 0.65rem 0.5rem !important;
        font-size: 0.95rem;
    }

    /* 英雄区 */
    .z98c45hero-section { padding: 36px 0 48px; }
    .z98c45hero-section .row { --bs-gutter-y: 1.5rem; }
    .z98c45hero-title { font-size: 1.875rem; }
    .z98c45hero-subtitle { font-size: 0.95rem; margin-bottom: 0.75rem; }
    .z98c45hero-desc { font-size: 0.875rem; max-width: 100%; margin-bottom: 1.25rem; line-height: 1.75; }
    .z98c45hero-badge {
        font-size: 0.8rem;
        padding: 0.35rem 0.85rem;
        max-width: 100%;
        flex-wrap: wrap;
    }
    .z98c45hero-stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
        margin-bottom: 1.5rem;
    }
    .z98c45hero-stat { align-items: center; text-align: center; }
    .z98c45hero-stat-num { font-size: 1.15rem; }
    .z98c45hero-stat-label { font-size: 0.72rem; }
    .z98c45hero-buttons { flex-direction: column; gap: 0.625rem; }
    .z98c45hero-buttons .btn {
        width: 100%;
        justify-content: center;
        padding: 0.7rem 1rem;
        font-size: 0.95rem;
    }
    .z98c45hero-buttons .btn-lg { font-size: 0.95rem; }
    .z98c45hero-float-card { display: none; }
    .z98c45hero-image { max-width: 200px; }
    .z98c45hero-visual { min-height: auto; padding: 0.5rem 0 0; }

    /* 通用标题 */
    .z98c45section-header { margin-bottom: 1.5rem; }
    .z98c45section-header h2 { font-size: 1.375rem; line-height: 1.35; }
    .z98c45section-desc { font-size: 0.9rem; line-height: 1.7; padding: 0 0.25rem; }
    .z98c45section-tag { font-size: 0.78rem; padding: 0.3rem 0.85rem; }

    /* 平台介绍 */
    .z98c45about-grid { grid-template-columns: 1fr; gap: 0.75rem; }
    .z98c45about-content p { font-size: 0.9rem; }

    /* 特点 */
    .z98c45feature-card h3 { font-size: 1rem; }
    .z98c45feature-card p { font-size: 0.875rem; }
    .z98c45features-section .row { --bs-gutter-y: 0.75rem; }

    /* 统计 */
    .z98c45stats-section .row { --bs-gutter-y: 0.75rem; --bs-gutter-x: 0.75rem; }
    .z98c45stat-number { font-size: 1.4rem; }
    .z98c45stat-label { font-size: 0.78rem; line-height: 1.35; }
    .z98c45stat-item { padding: 1rem 0.5rem; }
    .z98c45stat-icon { font-size: 1.25rem; margin-bottom: 0.5rem; }

    /* 注册 */
    .z98c45register-section .row { --bs-gutter-y: 1rem; }
    .z98c45register-wrap { padding: 1.25rem; }
    .z98c45register-wrap h2 { font-size: 1.375rem; margin-top: 0.5rem; }
    .z98c45register-desc { font-size: 0.9rem; margin-bottom: 1.5rem; }
    .z98c45register-cta {
        height: auto;
        margin-top: 0.5rem;
        padding: 1.25rem 1rem;
    }
    .z98c45register-icon { font-size: 2.25rem; margin-bottom: 0.75rem; }
    .z98c45register-cta h3 { font-size: 1.1rem; }
    .z98c45register-cta .btn { width: 100%; }

    /* 下载 */
    .z98c45download-section .row { --bs-gutter-y: 0.75rem; }
    .z98c45download-card-header { gap: 0.75rem; margin-bottom: 1.25rem; }
    .z98c45download-card-header h3 { font-size: 1rem; }
    .z98c45platform-sub { font-size: 0.8rem; }
    .z98c45platform-icon { width: 42px; height: 42px; font-size: 1.15rem; }
    .z98c45download-info { padding: 0.875rem; margin-bottom: 1rem; }
    .z98c45info-item { font-size: 0.85rem; }
    .z98c45download-note { margin-top: 1.25rem; padding: 0.875rem 1rem; }
    .z98c45download-note p { font-size: 0.85rem; }

    /* 安全 */
    .z98c45security-section .row.g-4 { --bs-gutter-y: 0.75rem; }
    .z98c45security-card { padding: 1.125rem; }
    .z98c45security-icon { width: 48px; height: 48px; font-size: 1.2rem; margin-bottom: 1rem; }
    .z98c45security-features { padding: 0.875rem; }
    .z98c45certificate-card { padding: 1.125rem; }
    .z98c45certificate-icon { width: 48px; height: 48px; font-size: 1.25rem; }

    /* FAQ */
    .z98c45faq-section .row { --bs-gutter-y: 0.75rem; }
    .z98c45faq-q h5 { font-size: 0.95rem; }
    .z98c45faq-item p { padding-left: 0; margin-top: 0.5rem; font-size: 0.875rem; }

    /* 文章 */
    .z98c45article-header {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 0.75rem !important;
        margin-bottom: 1.25rem;
    }
    .z98c45article-header .z98c45btn-more { width: 100%; }
    .z98c45thumb-home { height: 110px !important; }
    .z98c45article-meta { font-size: 0.75rem; }
    .z98c45article-title {
        font-size: 0.9rem;
        line-height: 1.4;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    /* 页脚 */
    .z98c45footer { padding: 36px 0 20px; }
    .z98c45footer > .container > .row:first-child > [class*="col"] { margin-bottom: 1.5rem !important; }
    .z98c45footer-brand { display: block; }
    .z98c45footer-title { margin-top: 0; text-align: center; font-size: 0.95rem; }
    .z98c45footer-links { text-align: center; }
    .z98c45footer p { font-size: 0.875rem; line-height: 1.65; }
    .z98c45friend-links { justify-content: center; }
}

/* 文章双列布局缩略图 */
@media (min-width: 576px) and (max-width: 767px) {
    .z98c45thumb-home { height: 96px !important; }
}

/* ===== 响应式 - 小屏 ===== */
@media (max-width: 575px) {
    :root { --section-padding: 36px; --card-padding: 1rem; }

    .z98c45container.container {
        padding-left: max(12px, env(safe-area-inset-left));
        padding-right: max(12px, env(safe-area-inset-right));
    }

    .z98c45hero-title { font-size: 1.625rem; }
    .z98c45hero-stat-num { font-size: 1rem; }
    .z98c45hero-stat-label { font-size: 0.68rem; }

    .z98c45section-header h2 { font-size: 1.25rem; }
    .z98c45register-wrap { padding: 1rem; border-radius: var(--radius-md); }
    .z98c45register-wrap h2 { font-size: 1.25rem; }

    .z98c45step-item { gap: 0.625rem; }
    .z98c45step-num { width: 34px; height: 34px; font-size: 0.72rem; }
    .z98c45step-content h4 { font-size: 0.95rem; }
    .z98c45step-content p { font-size: 0.85rem; }

    .z98c45stat-number { font-size: 1.2rem; }
    .z98c45stat-label { font-size: 0.72rem; }
    .z98c45stat-item { padding: 0.875rem 0.375rem; }

    .z98c45thumb-home { height: 128px !important; }
    .z98c45article-card .card-body { padding: 0.625rem; }

    .z98c45footer-brand img { height: 32px; }
    .z98c45footer-bottom { font-size: 0.8rem; padding-top: 1.25rem; }
    .z98c45footer-bottom p { font-size: 0.8rem; }
}

/* ===== 列表页/内容页样式保留 ===== */
.pagebar .pagelist {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.pagebar .pagelist li {
    display: inline-flex;
    margin: 0;
}

.listbox .e2 li {
    padding-bottom: 0.75rem;
    margin-bottom: 0.75rem;
}

@media (max-width: 767px) {
    .listbox .e2 li {
        padding-bottom: 0.75rem !important;
        margin-bottom: 0.75rem !important;
    }

    .listbox .e2 li h2.h5 {
        font-size: 1rem;
        margin-bottom: 0.35rem;
        line-height: 1.35;
    }

    .listbox .e2 li p {
        font-size: 0.9rem;
        line-height: 1.5;
    }

    .z98c45thumb-list,
    .z98c45thumb-related { height: 72px !important; }
    .z98c45thumb-side { height: 50px !important; }
    .z98c45thumb-cover {
        max-width: 100% !important;
        width: 100%;
        height: 170px !important;
        margin: 0 auto;
    }
}

@media (max-width: 575px) {
    .z98c45thumb-list,
    .z98c45thumb-related { height: 64px !important; }
    .z98c45thumb-side { height: 46px !important; }
    .z98c45thumb-cover { height: 150px !important; }
    .pagebar .pagelist { gap: 0.35rem; }
}

.listbox .card,
.listbox .z98c45article-card { margin-bottom: 1rem; }

#article .z98c45article-card { margin-bottom: 0; }

.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.form-control { width: 100%; }

.modal-dialog { margin: 1rem auto; }

@media (max-width: 575px) {
    .modal-dialog { margin: 0.5rem; }
}