/**
 * 全球视野商学院 - 主样式文件
 * 配色: 深蓝 #0f172a, 银灰 #e2e8f0, 金黄 #f59e0b
 */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: #0f172a;
    color: #e2e8f0;
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==================== 顶部导航栏 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.1);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

/* 品牌区 */
.brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-cn {
    font-size: 12px;
    color: #94a3b8;
}

.slogan {
    font-size: 12px;
    color: #64748b;
    padding-left: 15px;
    border-left: 1px solid #334155;
}

/* 核心菜单 */
.main-nav {
    display: flex;
}

.nav-list {
    display: flex;
    gap: 5px;
}

.nav-item {
    position: relative;
}

.nav-item > a {
    display: block;
    padding: 10px 18px;
    font-size: 14px;
    color: #e2e8f0;
    transition: color 0.3s;
    border-radius: 6px;
}

.nav-item > a:hover,
.nav-item.active > a {
    color: #f59e0b;
    background: rgba(245, 158, 11, 0.1);
}

/* 下拉菜单 */
.nav-item.has-dropdown > a::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    vertical-align: middle;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    padding: 8px 0;
    background: rgba(30, 41, 59, 0.98);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(226, 232, 240, 0.1);
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s;
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown li a {
    display: block;
    padding: 10px 20px;
    font-size: 13px;
    color: #cbd5e1;
    transition: all 0.3s;
}

.dropdown li a:hover {
    color: #f59e0b;
    background: rgba(245, 158, 11, 0.1);
    padding-left: 25px;
}

/* 功能区按钮 */
.header-actions {
    display: flex;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s;
    cursor: pointer;
}

.btn-ghost {
    color: #e2e8f0;
    background: transparent;
    border: 1px solid #334155;
}

.btn-ghost:hover {
    border-color: #f59e0b;
    color: #f59e0b;
}

.btn-primary {
    color: #0f172a;
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    border: 2px solid #f59e0b;
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 30px rgba(245, 158, 11, 0.5);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: #e2e8f0;
    transition: all 0.3s;
}

/* ==================== Hero Section ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 70px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, #1e293b 0%, #0f172a 70%);
}

/* 星空背景 */
.stars {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #e2e8f0, transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(226, 232, 240, 0.8), transparent),
        radial-gradient(1px 1px at 90px 40px, #e2e8f0, transparent),
        radial-gradient(2px 2px at 160px 120px, rgba(226, 232, 240, 0.6), transparent),
        radial-gradient(1px 1px at 230px 80px, #e2e8f0, transparent),
        radial-gradient(2px 2px at 300px 150px, rgba(226, 232, 240, 0.7), transparent);
    background-size: 350px 200px;
    animation: twinkle 5s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

/* 3D魔方 */
.cube-container {
    position: absolute;
    right: 15%;
    top: 50%;
    transform: translateY(-50%);
    perspective: 1000px;
}

.cube {
    width: 200px;
    height: 200px;
    position: relative;
    transform-style: preserve-3d;
    animation: rotateCube 20s infinite linear;
}

@keyframes rotateCube {
    0% { transform: rotateX(0deg) rotateY(0deg); }
    100% { transform: rotateX(360deg) rotateY(360deg); }
}

.cube-face {
    position: absolute;
    width: 200px;
    height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 10px;
    font-size: 14px;
    color: #f59e0b;
}

.cube-face .scene-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 10px;
}

.cube-face .scene-icon svg {
    width: 100%;
    height: 100%;
    fill: #f59e0b;
}

.cube-face.front { transform: translateZ(100px); }
.cube-face.back { transform: rotateY(180deg) translateZ(100px); }
.cube-face.right { transform: rotateY(90deg) translateZ(100px); }
.cube-face.left { transform: rotateY(-90deg) translateZ(100px); }
.cube-face.top { transform: rotateX(90deg) translateZ(100px); background: rgba(245, 158, 11, 0.1); }
.cube-face.bottom { transform: rotateX(-90deg) translateZ(100px); background: rgba(245, 158, 11, 0.1); }

/* Hero 内容 */
.hero-content {
    position: relative;
    z-index: 10;
    max-width: 600px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #e2e8f0, #f8fafc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: #94a3b8;
    margin-bottom: 40px;
    line-height: 1.8;
}

/* 双CTA按钮 */
.hero-cta {
    display: flex;
    gap: 20px;
}

.cta-box {
    flex: 1;
}

.cta-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 30px;
    border-radius: 12px;
    transition: all 0.3s;
}

.cta-enterprise .cta-btn {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(251, 191, 36, 0.1));
    border: 2px solid #f59e0b;
}

.cta-enterprise .cta-btn:hover {
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(245, 158, 11, 0.4);
}

.cta-enterprise .cta-btn:hover .cta-label,
.cta-enterprise .cta-btn:hover .cta-action {
    color: #0f172a;
}

.cta-personal .cta-btn {
    background: rgba(30, 41, 59, 0.8);
    border: 2px solid #475569;
}

.cta-personal .cta-btn:hover {
    border-color: #e2e8f0;
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(226, 232, 240, 0.2);
}

.cta-label {
    font-size: 14px;
    color: #94a3b8;
    margin-bottom: 5px;
}

.cta-action {
    font-size: 18px;
    font-weight: 600;
    color: #e2e8f0;
}

.cta-tags {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 12px;
}

.cta-tags span {
    font-size: 12px;
    color: #64748b;
    padding: 4px 10px;
    background: rgba(100, 116, 139, 0.2);
    border-radius: 20px;
}

/* 滚动提示 */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: #64748b;
    font-size: 12px;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid #64748b;
    border-bottom: 2px solid #64748b;
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ==================== 通用Section样式 ==================== */
section {
    padding: 100px 0;
}

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

.section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #e2e8f0, #f8fafc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 16px;
    color: #64748b;
}

/* ==================== 四大学院 ==================== */
.faculties {
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
}

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

.faculty-card {
    position: relative;
    padding: 40px 25px;
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(226, 232, 240, 0.1);
    border-radius: 16px;
    transition: all 0.4s;
    overflow: hidden;
}

.faculty-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.4s;
}

.faculty-card:hover {
    transform: translateY(-10px);
    border-color: rgba(245, 158, 11, 0.5);
    box-shadow: 0 20px 60px rgba(245, 158, 11, 0.2);
}

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

.faculty-icon {
    position: relative;
    width: 70px;
    height: 70px;
    margin-bottom: 25px;
}

.faculty-icon svg {
    width: 100%;
    height: 100%;
    fill: #64748b;
    transition: all 0.4s;
}

.icon-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 100px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(245, 158, 11, 0.4) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

.faculty-card:hover .faculty-icon svg {
    fill: #f59e0b;
    filter: drop-shadow(0 0 10px rgba(245, 158, 11, 0.8));
}

.faculty-card:hover .icon-glow {
    opacity: 1;
}

.faculty-keyword {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    color: #f59e0b;
    background: rgba(245, 158, 11, 0.15);
    border-radius: 20px;
    margin-bottom: 15px;
}

.faculty-name {
    font-size: 20px;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 5px;
}

.faculty-name-en {
    font-size: 12px;
    color: #475569;
    margin-bottom: 15px;
}

.faculty-desc {
    font-size: 14px;
    color: #94a3b8;
    line-height: 1.7;
}

.faculty-hover-line {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #f59e0b, transparent);
    transform: scaleX(0);
    transition: transform 0.4s;
}

.faculty-card:hover .faculty-hover-line {
    transform: scaleX(1);
}

/* ==================== 模式对比 ==================== */
.comparison {
    background: #0f172a;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.comparison-card {
    padding: 40px;
    border-radius: 20px;
    transition: transform 0.3s;
}

.comparison-card:hover {
    transform: translateY(-5px);
}

.old-way {
    background: linear-gradient(135deg, rgba(71, 85, 105, 0.3), rgba(51, 65, 85, 0.2));
    border: 1px solid rgba(71, 85, 105, 0.3);
}

.our-way {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(251, 191, 36, 0.05));
    border: 1px solid rgba(245, 158, 11, 0.3);
    box-shadow: 0 10px 40px rgba(245, 158, 11, 0.1);
}

.card-header {
    margin-bottom: 30px;
}

.card-badge {
    display: inline-block;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 10px;
}

.old-way .card-badge {
    color: #94a3b8;
    background: rgba(148, 163, 184, 0.2);
}

.our-way .card-badge {
    color: #f59e0b;
    background: rgba(245, 158, 11, 0.2);
}

.card-header h3 {
    font-size: 24px;
    font-weight: 600;
}

.old-way .card-header h3 {
    color: #64748b;
}

.our-way .card-header h3 {
    color: #fbbf24;
}

.pain-point, .solution-point {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.pain-icon, .solution-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
}

.pain-icon {
    background: rgba(239, 68, 68, 0.2);
}

.pain-icon svg {
    width: 20px;
    height: 20px;
    fill: #ef4444;
}

.solution-icon {
    background: rgba(34, 197, 94, 0.2);
}

.solution-icon svg {
    width: 20px;
    height: 20px;
    fill: #22c55e;
}

.pain-text h4, .solution-text h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 5px;
}

.old-way .pain-text h4 {
    color: #94a3b8;
}

.our-way .solution-text h4 {
    color: #e2e8f0;
}

.pain-text p, .solution-text p {
    font-size: 14px;
    color: #64748b;
}

.visual-elements {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid rgba(226, 232, 240, 0.1);
}

.visual-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    border-radius: 12px;
}

.old-way .visual-item {
    background: rgba(71, 85, 105, 0.2);
}

.our-way .visual-item {
    background: rgba(245, 158, 11, 0.1);
}

.visual-item svg {
    width: 30px;
    height: 30px;
}

.old-way .visual-item svg {
    fill: #64748b;
}

.our-way .visual-item svg {
    fill: #f59e0b;
}

.visual-item span {
    font-size: 12px;
}

.old-way .visual-item span {
    color: #64748b;
}

.our-way .visual-item span {
    color: #fbbf24;
}

/* ==================== 人才蓄水池 ==================== */
.talent-pool {
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
}

.stats-dashboard {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.stat-card {
    position: relative;
    padding: 40px 30px;
    text-align: center;
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(226, 232, 240, 0.1);
    border-radius: 16px;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
}

.stat-value {
    font-size: 48px;
    font-weight: 800;
    color: #f59e0b;
    line-height: 1;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 14px;
    color: #94a3b8;
    margin-bottom: 5px;
}

.stat-unit {
    font-size: 12px;
    color: #64748b;
}

/* 人才展示 */
.talent-showcase {
    background: rgba(30, 41, 59, 0.4);
    border-radius: 20px;
    padding: 40px;
}

.showcase-title {
    font-size: 20px;
    color: #e2e8f0;
    margin-bottom: 30px;
    text-align: center;
}

.talent-slider {
    overflow: hidden;
}

.talent-track {
    display: flex;
    gap: 20px;
    animation: slideTrack 30s linear infinite;
}

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

.talent-card {
    flex-shrink: 0;
    width: 320px;
    display: flex;
    gap: 15px;
    padding: 20px;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(226, 232, 240, 0.1);
    border-radius: 12px;
}

.talent-avatar {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    border-radius: 50%;
    font-size: 18px;
    font-weight: 600;
    color: #0f172a;
}

.talent-info {
    flex: 1;
}

.talent-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 5px;
}

.talent-name {
    font-size: 15px;
    font-weight: 600;
    color: #e2e8f0;
}

.talent-level {
    font-size: 11px;
    padding: 2px 8px;
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
    border-radius: 10px;
}

.talent-cert {
    font-size: 13px;
    color: #fbbf24;
    margin-bottom: 5px;
}

.talent-skills {
    font-size: 12px;
    color: #64748b;
    margin-bottom: 8px;
}

.talent-status {
    font-size: 12px;
    padding: 6px 10px;
    border-radius: 6px;
}

.talent-status.hired {
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
}

/* ==================== 权威背书 ==================== */
.trust {
    background: #0f172a;
}

.partner-section {
    margin-bottom: 50px;
}

.partner-section:last-child {
    margin-bottom: 0;
}

.partner-title {
    font-size: 16px;
    color: #94a3b8;
    text-align: center;
    margin-bottom: 25px;
}

.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 35px;
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(226, 232, 240, 0.1);
    border-radius: 12px;
    transition: all 0.3s;
}

.partner-logo:hover {
    border-color: rgba(245, 158, 11, 0.5);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(245, 158, 11, 0.1);
}

.partner-logo span {
    font-size: 14px;
    color: #94a3b8;
    font-weight: 500;
}

.partner-logos.core .partner-logo {
    border-color: rgba(245, 158, 11, 0.3);
}

.partner-logos.core .partner-logo span {
    color: #fbbf24;
}

/* ==================== 页脚 ==================== */
.footer {
    background: #0a0f1a;
    padding: 60px 0 30px;
    border-top: 1px solid rgba(226, 232, 240, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .footer-logo {
    margin-bottom: 15px;
}

.footer-slogan {
    font-size: 14px;
    color: #64748b;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 16px;
    color: #e2e8f0;
    margin-bottom: 20px;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul li a {
    font-size: 14px;
    color: #64748b;
    transition: color 0.3s;
}

.footer-links ul li a:hover {
    color: #f59e0b;
}

.footer-contact p {
    font-size: 14px;
    color: #64748b;
    margin-bottom: 10px;
}

.footer-contact p strong {
    color: #94a3b8;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(226, 232, 240, 0.1);
}

.footer-bottom p {
    font-size: 13px;
    color: #475569;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .cube-container {
        right: 5%;
        opacity: 0.5;
    }
    
    .faculty-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-dashboard {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-inner {
        flex-wrap: wrap;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        padding: 20px;
        border-top: 1px solid rgba(226, 232, 240, 0.1);
    }
    
    .main-nav.active {
        display: block;
    }
    
    .nav-list {
        flex-direction: column;
    }
    
    .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: transparent;
        border: none;
        box-shadow: none;
        padding-left: 20px;
    }
    
    .header-actions {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .cube-container {
        display: none;
    }
    
    .faculty-grid,
    .comparison-grid,
    .stats-dashboard {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .section-title {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .brand {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .slogan {
        border: none;
        padding-left: 0;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 14px;
    }
    
    .stat-value {
        font-size: 36px;
    }
    
    .talent-card {
        width: 280px;
    }
}

/* ==================== 第二屏：核心底气 ==================== */
.authority-resources {
    padding: 100px 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    position: relative;
    overflow: hidden;
}

.authority-resources::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

.authority-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 60px;
}

.authority-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.9) 100%);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 20px;
    padding: 50px 40px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.authority-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.authority-card:hover {
    transform: translateY(-10px);
    border-color: rgba(59, 130, 246, 0.6);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.3);
}

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

.card-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 20px;
    font-size: 12px;
    color: #60a5fa;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 25px;
}

.authority-card .card-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(37, 99, 235, 0.1) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    position: relative;
}

.authority-card .card-icon svg {
    width: 40px;
    height: 40px;
    color: #60a5fa;
}

.authority-card .card-icon::after {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border-radius: 20px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.authority-card:hover .card-icon::after {
    opacity: 0.3;
}

.authority-card .card-title {
    font-size: 32px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 15px;
}

.authority-card .card-subtitle {
    font-size: 18px;
    color: #94a3b8;
    line-height: 1.6;
    margin-bottom: 30px;
    padding-bottom: 25px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.authority-card .card-subtitle .en-text {
    display: block;
    font-size: 14px;
    color: #64748b;
    margin-top: 5px;
}

.card-features {
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 20px;
}

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

.feature-icon {
    color: #3b82f6;
    font-size: 12px;
    line-height: 1.5;
    flex-shrink: 0;
    margin-top: 3px;
}

.feature-item p {
    color: #cbd5e1;
    font-size: 15px;
    line-height: 1.6;
}

.feature-item strong {
    color: #60a5fa;
    font-weight: 600;
}

.card-value {
    background: rgba(59, 130, 246, 0.05);
    border-left: 3px solid #3b82f6;
    padding: 20px;
    border-radius: 8px;
}

.value-label {
    display: block;
    font-size: 13px;
    color: #60a5fa;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    font-weight: 600;
}

.card-value p {
    color: #ffffff;
    font-size: 16px;
    line-height: 1.6;
    font-weight: 500;
}

/* ==================== 第四屏：三大战略基石 ==================== */
.why-choose {
    padding: 100px 0;
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    position: relative;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.pillar-card {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.6) 0%, rgba(15, 23, 42, 0.8) 100%);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.pillar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, #3b82f6, transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.pillar-card:hover {
    transform: translateY(-10px);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.pillar-card:hover::before {
    transform: translateX(100%);
}

.pillar-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.4s ease;
}

.pillar-icon svg {
    width: 40px;
    height: 40px;
    color: #60a5fa;
    transition: all 0.4s ease;
}

.pillar-card:hover .pillar-icon {
    background: rgba(59, 130, 246, 0.2);
    transform: scale(1.1) rotate(5deg);
}

.pillar-card:hover .pillar-icon svg {
    color: #3b82f6;
}

.pillar-title {
    font-size: 26px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
}

.pillar-subtitle {
    font-size: 16px;
    color: #94a3b8;
    line-height: 1.5;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.pillar-subtitle .en-text {
    display: block;
    font-size: 13px;
    color: #64748b;
    margin-top: 5px;
}

.pillar-content {
    text-align: left;
}

.content-section {
    margin-bottom: 25px;
}

.content-section:last-child {
    margin-bottom: 0;
}

.section-label {
    display: inline-block;
    font-size: 12px;
    color: #60a5fa;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 10px;
    padding: 4px 12px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 4px;
}

.content-section p {
    color: #cbd5e1;
    font-size: 14px;
    line-height: 1.7;
}

.content-section strong {
    color: #60a5fa;
    font-weight: 600;
}

/* 响应式设计 - 核心底气 */
@media (max-width: 768px) {
    .authority-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .authority-card {
        padding: 40px 30px;
    }
    
    .authority-card .card-title {
        font-size: 26px;
    }
    
    .authority-card .card-subtitle {
        font-size: 16px;
    }
}

/* 响应式设计 - 三大战略基石 */
@media (max-width: 992px) {
    .pillars-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .pillar-card {
        padding: 35px 25px;
    }
    
    .pillar-title {
        font-size: 22px;
    }
    
    .pillar-subtitle {
        font-size: 14px;
    }
}

/* ==================== 第四屏：教学模式 ==================== */
.teaching-model {
    padding: 100px 0;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    position: relative;
}

.model-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.model-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0.7) 100%);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    padding: 50px 35px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.model-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.model-card:hover {
    transform: translateY(-10px);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

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

.model-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 25px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.4s ease;
}

.model-icon svg {
    width: 36px;
    height: 36px;
    color: #60a5fa;
    transition: all 0.4s ease;
}

.model-card:hover .model-icon {
    background: rgba(59, 130, 246, 0.2);
    transform: scale(1.1);
}

.model-card:hover .model-icon svg {
    color: #3b82f6;
    transform: rotate(5deg);
}

.model-title {
    font-size: 22px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.model-desc {
    font-size: 15px;
    color: #cbd5e1;
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

/* 响应式设计 - 教学模式 */
@media (max-width: 992px) {
    .model-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .model-card {
        padding: 40px 30px;
    }
    
    .model-title {
        font-size: 20px;
    }
    
    .model-desc {
        font-size: 14px;
    }
}