/* ============================================
   微康益生菌 AI赋能方案 - 样式表
   ============================================ */

/* 变量定义 - 微康官网配色 */
:root {
    --primary-color: #dc082b;
    --primary-dark: #b40000;
    --primary-light: #ff1a45;
    --secondary-color: #10b981;
    --accent-color: #8b5cf6;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;

    --bg-primary: #ffffff;
    --bg-secondary: #f8f8f8;
    --bg-dark: #232323;
    --bg-darker: #1a1a1a;

    --text-primary: #333333;
    --text-secondary: #505556;
    --text-light: #969696;
    --text-white: #ffffff;

    --border-color: #e5e5e5;
    --border-light: #f0f0f0;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    --gradient-primary: linear-gradient(135deg, #dc082b 0%, #ff1a45 100%);
    --gradient-secondary: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    --gradient-dark: linear-gradient(135deg, #232323 0%, #333333 100%);

    --radius-sm: 6px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    --transition: all 0.3s ease;
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   导航栏
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 0 24px;
    height: 100px;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

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

.logo-icon {
    font-size: 24px;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

.nav-actions {
    display: flex;
    gap: 12px;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    margin: 6px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.btn-outline {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: transparent;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary {
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius);
    background: var(--primary-color);
    color: var(--text-white);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: 12px 24px;
    font-size: 16px;
}

/* ============================================
   英雄区域
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 24px 60px;
    background: linear-gradient(135deg, #ffffff 0%, #fff5f5 50%, #fff0f0 100%);
    overflow: hidden;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    padding-left: calc((100vw - 1280px) / 2 + 24px);
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--primary-color);
    color: var(--text-white);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero h1 .highlight {
    color: var(--primary-color);
    -webkit-text-fill-color: initial;
    background: none;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.hero h1 .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-bottom: 40px;
}

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

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
}

.hero-stat-item {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

/* 英雄区域视觉元素 */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.ai-brain {
    position: relative;
    width: 400px;
    height: 400px;
}

.brain-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--text-white);
    box-shadow: 0 0 60px rgba(220, 8, 43, 0.4);
    z-index: 10;
}

.brain-orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    border: 2px dashed rgba(220, 8, 43, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: rotate 20s linear infinite;
}

.orbit-1 {
    width: 280px;
    height: 280px;
}

.orbit-2 {
    width: 400px;
    height: 400px;
    animation-duration: 30s;
    animation-direction: reverse;
}

.orbit-item {
    position: absolute;
    padding: 8px 16px;
    background: var(--bg-white);
    border-radius: var(--radius);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-primary);
    box-shadow: var(--shadow);
    white-space: nowrap;
}

.orbit-1 .orbit-item:nth-child(1) { top: -10px; left: 50%; transform: translateX(-50%); }
.orbit-1 .orbit-item:nth-child(2) { bottom: -10px; left: 50%; transform: translateX(-50%); }
.orbit-1 .orbit-item:nth-child(3) { top: 50%; right: -10px; transform: translateY(-50%); }

.orbit-2 .orbit-item:nth-child(1) { top: 10%; left: -10px; }
.orbit-2 .orbit-item:nth-child(2) { top: 50%; left: -30px; transform: translateY(-50%); }
.orbit-2 .orbit-item:nth-child(3) { bottom: 10%; left: -10px; }
.orbit-2 .orbit-item:nth-child(4) { top: 10%; right: -10px; }
.orbit-2 .orbit-item:nth-child(5) { bottom: 10%; right: -10px; }

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ============================================
   赋能全景图
   ============================================ */
.panorama-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(220, 8, 43, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-secondary);
}

.panorama-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.panorama-card {
    padding: 32px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
}

.panorama-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.card-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.panorama-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.panorama-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.card-metrics {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(220, 8, 43, 0.1);
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--primary-color);
}

.card-metrics strong {
    font-weight: 700;
}

/* 卡片颜色变体 */
.card-rd { border-top: 3px solid var(--primary-color); }
.card-production { border-top: 3px solid var(--primary-color); }
.card-quality { border-top: 3px solid var(--primary-color); }
.card-supply { border-top: 3px solid var(--primary-color); }
.card-sales { border-top: 3px solid var(--primary-color); }
.card-service { border-top: 3px solid var(--primary-color); }
.card-finance { border-top: 3px solid var(--primary-color); }
.card-hr { border-top: 3px solid var(--primary-color); }

/* 基础设施层 */
.infra-layer {
    background: var(--gradient-dark);
    border-radius: var(--radius-xl);
    padding: 32px 40px;
}

.infra-layer h3 {
    color: var(--text-white);
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 24px;
}

.infra-items {
    display: flex;
    justify-content: space-between;
}

.infra-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-white);
    font-size: 14px;
}

.infra-icon {
    font-size: 24px;
}

/* ============================================
   部门AI赋能详情
   ============================================ */
.departments-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.dept-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.dept-tab {
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    background: var(--bg-white);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.dept-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.dept-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-white);
}

.dept-panel {
    display: none;
}

.dept-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.dept-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
    padding: 32px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
}

.dept-info h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.dept-goal {
    font-size: 14px;
    color: var(--text-secondary);
}

.dept-stats {
    display: flex;
    gap: 24px;
}

.stat-box {
    text-align: center;
    padding: 16px 24px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.stat-number {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.dept-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-white);
}

.dept-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.stat-desc {
    font-size: 12px;
    color: var(--text-secondary);
}

.scenario-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.scenario-card {
    padding: 24px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.scenario-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #fff5f5 0%, #fff0f0 100%);
}

.scenario-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.scenario-icon {
    font-size: 24px;
}

.scenario-header h4 {
    font-size: 16px;
    font-weight: 600;
    flex: 1;
}

.priority-badge {
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
}

.priority-badge.p0 {
    background: rgba(220, 8, 43, 0.15);
    color: var(--primary-color);
}

.priority-badge.p1 {
    background: #fef3c7;
    color: #d97706;
}

.priority-badge.p2 {
    background: #dbeafe;
    color: #2563eb;
}

.scenario-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.scenario-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.tech-tag {
    padding: 4px 10px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    font-size: 12px;
    color: var(--text-secondary);
}

.scenario-effect {
    padding-top: 12px;
    border-top: 1px solid var(--border-light);
}

.effect-label {
    font-size: 12px;
    color: var(--text-light);
}

.effect-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
}

/* ============================================
   实施路线图
   ============================================ */
.roadmap-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.phase-overview {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 60px;
}

.phase-card {
    flex: 1;
    max-width: 320px;
    padding: 32px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    position: relative;
}

.phase-number {
    font-size: 48px;
    font-weight: 700;
    color: rgba(37, 99, 235, 0.1);
    position: absolute;
    top: 16px;
    right: 24px;
}

.phase-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.phase-time {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-color);
    color: var(--text-white);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 16px;
}

.phase-card li::before {
    color: var(--primary-color);
}

.phase-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.phase-card ul {
    list-style: none;
    font-size: 13px;
    color: var(--text-secondary);
}

.phase-card li {
    padding: 6px 0;
    padding-left: 16px;
    position: relative;
}

.phase-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

.phase-1 { border-top: 3px solid var(--primary-color); }
.phase-2 { border-top: 3px solid var(--primary-dark); }
.phase-3 { border-top: 3px solid var(--primary-light); }

.phase-connector {
    font-size: 24px;
    color: var(--text-light);
}

/* 时间线 */
.timeline {
    margin-bottom: 60px;
}

.timeline-header h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
    padding-left: 16px;
    border-left: 4px solid var(--primary-color);
}

.timeline-items {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.timeline-item {
    display: flex;
    gap: 24px;
}

.timeline-month {
    width: 100px;
    padding: 12px;
    background: var(--primary-color);
    color: var(--text-white);
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    height: fit-content;
}

.timeline-header h3 {
    border-left-color: var(--primary-color);
}

.timeline-content {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.timeline-card {
    padding: 20px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.timeline-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.timeline-card-header h4 {
    font-size: 15px;
    font-weight: 600;
}

.timeline-card p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.timeline-deliverable {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.deliverable-label {
    font-weight: 500;
}

.timeline-effect {
    padding: 8px 12px;
    background: rgba(220, 8, 43, 0.1);
    border-radius: var(--radius);
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 500;
}

.summary-card {
    background: var(--gradient-dark);
    color: var(--text-white);
    border: none;
}

.summary-card h4,
.summary-card p {
    color: var(--text-white);
}

.milestone-badge {
    padding: 4px 10px;
    background: var(--primary-color);
    color: var(--text-white);
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
}

.infrastructure-card {
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
}

.infra-badge {
    padding: 4px 10px;
    background: var(--primary-color);
    color: var(--text-white);
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
}

/* 里程碑 */
.milestones {
    margin-top: 60px;
}

.milestones h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
    text-align: center;
}

.milestone-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.milestone-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.milestone-icon {
    font-size: 32px;
}

.milestone-info {
    flex: 1;
}

.milestone-time {
    display: inline-block;
    padding: 4px 8px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.milestone-info h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.milestone-info p {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ============================================
   技术架构
   ============================================ */
.architecture-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.arch-diagram {
    max-width: 900px;
    margin: 0 auto 60px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.arch-layer {
    display: flex;
    gap: 16px;
    align-items: stretch;
}

.layer-label {
    width: 120px;
    padding: 16px;
    background: var(--bg-dark);
    color: var(--text-white);
    border-radius: var(--radius-lg);
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.layer-content {
    flex: 1;
    display: flex;
    gap: 12px;
    padding: 16px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.arch-item {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    text-align: center;
}

.arch-item.full {
    flex: none;
    width: 100%;
}

.item-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.item-desc {
    font-size: 11px;
    color: var(--text-light);
}

.layer-app .arch-item { background: rgba(220, 8, 43, 0.1); color: var(--primary-color); }
.layer-gateway .arch-item { background: rgba(245, 158, 11, 0.1); color: var(--warning-color); }
.layer-ai .arch-item { background: rgba(220, 8, 43, 0.08); color: var(--primary-dark); }
.layer-data .arch-item { background: rgba(16, 185, 129, 0.1); color: var(--secondary-color); }
.layer-infra .arch-item { background: rgba(100, 116, 139, 0.1); color: var(--text-secondary); }

/* 技术选型 */
.tech-stack h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
    text-align: center;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.tech-category {
    padding: 20px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.tech-category h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.tech-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tech-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.tech-version {
    font-size: 12px;
    color: var(--primary-color);
}

.tech-reason {
    font-size: 11px;
    color: var(--text-light);
}

/* ============================================
   ROI分析
   ============================================ */
.roi-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

/* ============================================
   港股上市支撑
   ============================================ */
.ipo-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #fff5f5 0%, #ffffff 50%, #fff5f5 100%);
}

.ipo-main-grid {
    margin-bottom: 40px;
}

.ipo-main-card {
    padding: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    text-align: center;
    color: var(--text-white);
}

.ipo-main-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.ipo-main-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.ipo-main-card p {
    font-size: 16px;
    opacity: 0.9;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

.ipo-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.ipo-card {
    padding: 32px 24px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
}

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

.ipo-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.ipo-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.ipo-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.ipo-impact {
    display: block;
    padding: 10px 16px;
    background: rgba(220, 8, 43, 0.1);
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 500;
}

.roi-table-wrapper {
    overflow-x: auto;
    margin-bottom: 60px;
}

.roi-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.roi-table th,
.roi-table td {
    padding: 16px 24px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.roi-table th {
    background: var(--bg-secondary);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.roi-table td {
    font-size: 14px;
}

.scenario-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.scenario-dept {
    font-size: 12px;
    color: var(--text-light);
}

.roi-value {
    color: var(--primary-color);
    font-weight: 600;
}

.difficulty {
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 500;
}

.difficulty.low { background: #dcfce7; color: #16a34a; }
.difficulty.medium { background: #fef3c7; color: #d97706; }
.difficulty.high { background: rgba(220, 8, 43, 0.15); color: var(--primary-color); }

.roi-p0:hover { background: rgba(220, 8, 43, 0.02); }
.roi-p1:hover { background: rgba(245, 158, 11, 0.02); }
.roi-p2:hover { background: rgba(37, 99, 235, 0.02); }

/* ============================================
   风险与应对
   ============================================ */
.risk-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.risk-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.risk-card {
    padding: 24px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.risk-icon {
    font-size: 32px;
    margin-bottom: 16px;
}

.risk-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.risk-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.risk-mitigation {
    padding: 12px;
    background: rgba(220, 8, 43, 0.05);
    border-radius: var(--radius);
}

.mitigation-label {
    font-size: 12px;
    color: var(--text-light);
    display: block;
    margin-bottom: 4px;
}

.risk-mitigation span:last-child {
    font-size: 13px;
    color: var(--text-primary);
}

/* ============================================
   页脚
   ============================================ */
.footer {
    padding: 40px 24px;
    background: var(--bg-dark);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-white);
    font-size: 16px;
    font-weight: 600;
}

.footer-logo-img {
    height: 50px;
    width: auto;
}

.footer-info {
    text-align: right;
}

.footer-info p {
    font-size: 13px;
    color: var(--text-light);
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
    .panorama-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

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

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: white;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
    }

    .nav-links.active {
        opacity: 1;
        visibility: visible;
    }

    .nav-links li {
        transform: translateY(20px);
        opacity: 0;
        transition: all 0.3s ease;
    }

    .nav-links.active li {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-links.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav-links.active li:nth-child(2) { transition-delay: 0.15s; }
    .nav-links.active li:nth-child(3) { transition-delay: 0.2s; }
    .nav-links.active li:nth-child(4) { transition-delay: 0.25s; }
    .nav-links.active li:nth-child(5) { transition-delay: 0.3s; }
    .nav-links.active li:nth-child(6) { transition-delay: 0.35s; }
    .nav-links.active li:nth-child(7) { transition-delay: 0.4s; }

    .nav-links a {
        font-size: 1.2rem;
    }

    .nav-actions {
        position: fixed;
        bottom: 100px;
        left: 0;
        right: 0;
        display: none;
        justify-content: center;
        gap: 16px;
        z-index: 1000;
    }

    .nav-actions.active {
        display: flex;
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 120px;
    }

    .hero-content {
        padding-left: 0;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .phase-overview {
        flex-direction: column;
    }

    .phase-connector {
        transform: rotate(90deg);
    }

    .timeline-item {
        flex-direction: column;
    }

    .timeline-content {
        grid-template-columns: 1fr;
    }

    .risk-grid {
        grid-template-columns: 1fr;
    }

    .ipo-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .panorama-grid {
        grid-template-columns: 1fr;
    }

    .scenario-grid {
        grid-template-columns: 1fr;
    }

    .tech-grid {
        grid-template-columns: 1fr;
    }

    .milestone-grid {
        grid-template-columns: 1fr;
    }

    .arch-layer {
        flex-direction: column;
    }

    .layer-content {
        flex-wrap: wrap;
    }
}

/* ============================================
   响应式设计
   ============================================ */
.ai-platform-section {
    margin-top: 32px;
    padding: 24px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.platform-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid rgba(59, 130, 246, 0.2);
}

.platform-icon {
    font-size: 24px;
}

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

.platform-item {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.platform-item:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.platform-item-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.platform-item-content h5 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.platform-item-content p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

@media (max-width: 768px) {
    .platform-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .platform-grid {
        grid-template-columns: 1fr;
    }

    .platform-item {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================
   应聘意向
   ============================================ */
.apply-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #fff5f5 0%, #ffffff 50%, #fff5f5 100%);
}

.apply-main {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.apply-profile {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 32px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.profile-header {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.profile-avatar {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--text-white);
}

.profile-info h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.profile-title {
    font-size: 16px;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 4px;
}

.profile-contact {
    font-size: 14px;
    color: var(--text-secondary);
}

.profile-summary h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.profile-summary p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.apply-skills {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 32px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.apply-skills h3,
.apply-experience h3,
.apply-why h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.skill-category {
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.skill-category h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.skill-category ul {
    list-style: none;
}

.skill-category li {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 6px 0;
    padding-left: 16px;
    position: relative;
}

.skill-category li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 600;
}

.apply-experience {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 32px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.experience-timeline {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.exp-item {
    display: flex;
    gap: 24px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
}

.exp-period {
    width: 140px;
    flex-shrink: 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
    padding-top: 4px;
}

.exp-content {
    flex: 1;
}

.exp-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.exp-role {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 8px;
}

.exp-content p:last-child {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.apply-why {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 32px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.why-card {
    padding: 24px;
    background: linear-gradient(135deg, #fff5f5 0%, #fff0f0 100%);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(220, 8, 43, 0.1);
    transition: var(--transition);
}

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

.why-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.why-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

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

.apply-cta {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: 48px;
    text-align: center;
    color: var(--text-white);
}

.apply-cta h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
    border: none;
    padding: 0;
    color: var(--text-white);
}

.apply-cta p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 24px;
}

.cta-contact {
    display: flex;
    justify-content: center;
    gap: 40px;
}

.cta-contact span {
    font-size: 16px;
    font-weight: 500;
}

@media (max-width: 1024px) {
    .skills-grid,
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .profile-header {
        flex-direction: column;
        text-align: center;
    }

    .exp-item {
        flex-direction: column;
        gap: 12px;
    }

    .skills-grid,
    .why-grid {
        grid-template-columns: 1fr;
    }

    .cta-contact {
        flex-direction: column;
        gap: 12px;
    }
}