/* ================================
   CSS Variables & Root Settings
   ================================ */
:root {
    --primary-color: #0071e3;
    --secondary-color: #f5f5f7;
    --text-color: #1d1d1f;
    --light-text: #86868b;
    --accent-color: #ff3b30;
    --success-color: #30d158;
    --warning-color: #ff9500;
    
    /* Gradients */
    --primary-gradient: linear-gradient(135deg, #0071e3 0%, #ff3b30 100%);
    --hero-gradient: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Icons", "PingFang SC", "Helvetica Neue", Helvetica, Arial, sans-serif;
    
    /* Shadows */
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --hover-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    /* Borders */
    --border-radius: 16px;
    --button-radius: 12px;
    
    /* Spacing */
    --section-padding: 80px 0;
}

/* ================================
   右下角悬浮购买按钮
   ================================ */
.floating-buy-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    background: linear-gradient(135deg, #0071e3 0%, #ff3b30 100%);
    border: none;
    border-radius: 25px;
    padding: 16px 24px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-family);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 
        0 8px 32px rgba(0, 113, 227, 0.3),
        0 4px 16px rgba(255, 59, 48, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(20px);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    user-select: none;
    min-width: 160px;
    justify-content: center;
    white-space: nowrap;
}

.floating-buy-button:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 
        0 12px 40px rgba(0, 113, 227, 0.4),
        0 8px 24px rgba(255, 59, 48, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    color: white;
    text-decoration: none;
}

.floating-buy-button:active {
    transform: translateY(0) scale(1.02);
    transition: all 0.1s ease;
}

.floating-buy-button i {
    font-size: 18px;
    animation: pulse-icon 2s ease-in-out infinite;
}

.floating-buy-button .btn-text {
    position: relative;
    z-index: 1;
}

/* 脉动动画 */
@keyframes pulse-icon {
    0%, 100% { 
        transform: scale(1); 
        opacity: 1;
    }
    50% { 
        transform: scale(1.2); 
        opacity: 0.8;
    }
}

/* 呼吸光效果 */
.floating-buy-button::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, #0071e3 0%, #ff3b30 100%);
    border-radius: 27px;
    z-index: -1;
    opacity: 0;
    animation: breathing-glow 3s ease-in-out infinite;
}

@keyframes breathing-glow {
    0%, 100% { 
        opacity: 0; 
        transform: scale(1);
    }
    50% { 
        opacity: 0.6; 
        transform: scale(1.05);
    }
}

/* 移动端优化 */
@media (max-width: 768px) {
    .floating-buy-button {
        bottom: 20px;
        right: 20px;
        padding: 14px 20px;
        font-size: 15px;
        min-width: 140px;
        border-radius: 22px;
    }
    
    .floating-buy-button i {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .floating-buy-button {
        bottom: 16px;
        right: 16px;
        padding: 12px 18px;
        font-size: 14px;
        min-width: 120px;
        border-radius: 20px;
    }
}

/* ================================
   Hero区域统计数据 - 一行布局重新设计
   ================================ */
.hero-stats-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 默认布局：PC端2x2四个卡片 */
.hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 40px 0;
}

/* 中等屏幕：两行，每行两个 */
@media (max-width: 1100px) {
    .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .hero-stats-container {
        padding: 0 16px;
    }
}

/* 小屏幕平板：两行，每行两个 */
@media (max-width: 768px) {
    .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .hero-stats-container {
        padding: 0 16px;
    }
}

/* 手机端：单列布局 */
@media (max-width: 480px) {
    .hero-stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* 统计卡片基础样式 - 苹果风格 */
.hero-stat-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 28px 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.06),
        0 4px 16px rgba(0, 0, 0, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    position: relative;
    overflow: hidden;
    transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    min-height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hero-stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.12),
        0 8px 24px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* 卡片背景装饰 */
.stat-card-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.05;
    border-radius: inherit;
    z-index: 0;
}

.students-card .stat-card-bg {
    background: linear-gradient(135deg, #0071e3 0%, #4fc3f7 100%);
}

.award-rate-card .stat-card-bg {
    background: linear-gradient(135deg, #30d158 0%, #66bb6a 100%);
}

.awards-card .stat-card-bg {
    background: linear-gradient(135deg, #ff3b30 0%, #ff7043 100%);
}

.courses-card .stat-card-bg {
    background: linear-gradient(135deg, #ff9500 0%, #ffa726 100%);
}

/* 图标容器 */
.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    position: relative;
    z-index: 2;
}

.stat-icon i {
    font-size: 24px;
    color: white;
}

.students-card .stat-icon {
    background: linear-gradient(135deg, #0071e3 0%, #4fc3f7 100%);
    box-shadow: 0 8px 24px rgba(0, 113, 227, 0.3);
}

.award-rate-card .stat-icon {
    background: linear-gradient(135deg, #30d158 0%, #66bb6a 100%);
    box-shadow: 0 8px 24px rgba(48, 209, 88, 0.3);
}

.awards-card .stat-icon {
    background: linear-gradient(135deg, #ff3b30 0%, #ff7043 100%);
    box-shadow: 0 8px 24px rgba(255, 59, 48, 0.3);
}

.courses-card .stat-icon {
    background: linear-gradient(135deg, #ff9500 0%, #ffa726 100%);
    box-shadow: 0 8px 24px rgba(255, 149, 0, 0.3);
}

/* 内容区域 */
.stat-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

/* 数字显示 */
.stat-number-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 8px;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-color);
    font-feature-settings: "tnum";
    line-height: 1;
}

.stat-suffix {
    font-size: 20px;
    font-weight: 600;
    color: var(--light-text);
    margin-left: 2px;
}

/* 标签 */
.stat-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--light-text);
    margin-bottom: 10px;
    text-align: center;
}

/* 特殊效果 */
.stat-trend, .stat-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--success-color);
}

.stat-trend i {
    font-size: 16px;
}

/* 获奖率进度条 */
.progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(48, 209, 88, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 4px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #30d158 0%, #66bb6a 100%);
    border-radius: 2px;
    width: 0%;
    transition: width 2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation: progressFill 1.2s ease-out forwards;
}

@keyframes progressFill {
    from { width: 0%; }
    to { width: 95%; }
}

/* 平板和手机优化 */
@media (max-width: 768px) {
    .hero-stat-card {
        padding: 24px 20px;
    }
    
    .stat-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 12px;
    }
    
    .stat-icon i {
        font-size: 24px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .stat-suffix {
        font-size: 20px;
    }
    
    .stat-label {
        font-size: 14px;
    }
}

/* ================================
   学习路线图专用样式
   ================================ */
.learning-roadmap-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.learning-roadmap-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(79, 70, 229, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 59, 48, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.roadmap-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 0;
}

.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(
        to bottom,
        #4f46e5 0%, #818cf8 20%,
        #f59e0b 30%, #fbbf24 50%,
        #10b981 60%, #34d399 80%,
        #ff3b30 90%, #ff6b35 100%
    );
    border-radius: 2px;
    transform: translateX(-50%);
    box-shadow: 0 0 20px rgba(79, 70, 229, 0.3);
}

.roadmap-step {
    position: relative;
    margin: 60px 0;
    display: flex;
    align-items: center;
    gap: 30px;
}

.step-right {
    flex-direction: row;
    justify-content: flex-start;
}

.step-left {
    flex-direction: row-reverse;
    justify-content: flex-start;
}

.step-marker {
    position: relative;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    z-index: 2;
    background: white;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.step-marker::before {
    content: '';
    position: absolute;
    inset: 4px;
    border-radius: 50%;
    padding: 2px;
    background: linear-gradient(135deg, var(--step-color-1), var(--step-color-2));
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
}

.step-marker:hover {
    transform: scale(1.1);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.2);
}

.step-number {
    position: absolute;
    font-size: 2.2rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--step-color-1), var(--step-color-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    z-index: 3;
}

.step-icon {
    position: absolute;
    font-size: 2rem;
    color: white;
    background: linear-gradient(135deg, var(--step-color-1), var(--step-color-2));
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float 2s ease-in-out infinite;
}

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

.step-content {
    flex: 1;
    max-width: 450px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 35px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.step-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--step-color-1), var(--step-color-2));
    border-radius: 20px 20px 0 0;
}

.step-content:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.step-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 8px;
    line-height: 1.3;
}

.step-goal {
    font-size: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--step-color-1), var(--step-color-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    line-height: 1.4;
}

.step-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: #4a5568;
    margin-bottom: 25px;
    text-align: justify;
}

.step-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    display: inline-block;
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--step-color-1), var(--step-color-2));
    color: white;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: default;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.skill-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* Step-specific color variables */
.step-1 { --step-color-1: #4f46e5; --step-color-2: #818cf8; }
.step-2 { --step-color-1: #4f46e5; --step-color-2: #818cf8; }
.step-3 { --step-color-1: #f59e0b; --step-color-2: #fbbf24; }
.step-4 { --step-color-1: #f59e0b; --step-color-2: #fbbf24; }
.step-5 { --step-color-1: #10b981; --step-color-2: #34d399; }
.step-6 { --step-color-1: #10b981; --step-color-2: #34d399; }
.step-7 { --step-color-1: #ff3b30; --step-color-2: #ff6b35; }

/* Responsive design */
@media (max-width: 1199px) {
    .roadmap-timeline {
        max-width: 900px;
    }
    
    .step-content {
        max-width: 400px;
        padding: 30px;
    }
    
    .roadmap-step {
        margin: 50px 0;
    }
}

@media (max-width: 991px) {
    .roadmap-timeline::before {
        left: 30px;
        transform: translateX(0);
    }
    
    .roadmap-step {
        flex-direction: row !important;
        justify-content: flex-start !important;
        padding-left: 80px;
        margin: 40px 0;
    }
    
    .step-marker {
        position: absolute;
        left: 0;
        width: 60px;
        height: 60px;
    }
    
    .step-number {
        font-size: 1.5rem;
    }
    
    .step-icon {
        font-size: 1.3rem;
        width: 40px;
        height: 40px;
    }
    
    .step-content {
        max-width: none;
        margin-left: 20px;
    }
}

@media (max-width: 767px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .roadmap-timeline {
        padding: 20px 0;
    }
    
    .roadmap-step {
        padding-left: 60px;
        margin: 30px 0;
    }
    
    .step-marker {
        width: 50px;
        height: 50px;
    }
    
    .step-number {
        font-size: 1.3rem;
    }
    
    .step-icon {
        font-size: 1.1rem;
        width: 32px;
        height: 32px;
    }
    
    .step-content {
        padding: 25px 20px;
        margin-left: 15px;
    }
    
    .step-header h3 {
        font-size: 1.3rem;
    }
    
    .step-description {
        font-size: 0.9rem;
        line-height: 1.6;
    }
    
    .skill-tag {
        padding: 5px 12px;
        font-size: 0.75rem;
    }
}

@media (max-width: 575px) {
    .step-content {
        padding: 20px 15px;
    }
    
    .step-header h3 {
        font-size: 1.2rem;
    }
    
    .step-description {
        font-size: 0.85rem;
    }
}

/* Accessibility and performance */
@media (prefers-reduced-motion: reduce) {
    .step-marker,
    .step-content,
    .skill-tag,
    .step-icon {
        animation: none;
        transition: none;
    }
}

/* ================================
   Global Reset & Base Styles
   ================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background-color: #fff;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

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

/* ================================
   Typography
   ================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-color);
}

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

/* ================================
   Buttons
   ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--button-radius);
    border: none;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 8px 25px rgba(0, 113, 227, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0, 113, 227, 0.4);
    color: white;
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.1rem;
}

/* ================================
   Navigation
   ================================ */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    z-index: 1000;
}

.navbar-brand .brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Logo样式 */
.navbar-logo {
    height: 45px;
    width: auto;
    transition: transform 0.3s ease;
    display: block;
}

.navbar-logo:hover {
    transform: scale(1.05);
}

/* 响应式Logo调整 */
@media (max-width: 768px) {
    .navbar-logo {
        height: 35px;
    }
}

.navbar-nav .nav-link {
    font-weight: 500;
    color: var(--text-color);
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color);
    background: rgba(0, 113, 227, 0.1);
}

/* ================================
   Hero Section
   ================================ */
.hero-section {
    background: var(--hero-gradient);
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background: var(--primary-gradient);
}

.title-area {
    margin-bottom: 50px;
}

.studio-name {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.main-title {
    font-size: 4rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 20px 0;
    text-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--light-text);
    font-weight: 400;
    margin-bottom: 40px;
}

/* ================================
   Hero Statistics Cards - 苹果风格重设计
   ================================ */

/* 主容器 - 简洁设计原则(KISS) */
.hero-stats-container {
    margin: 60px 0;
    position: relative;
}

/* Grid布局 - 响应式设计 */
.hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 统计卡片基础样式 - 单一职责原则(SRP) */
.hero-stat-card {
    position: relative;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 32px 24px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.08),
        0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
    min-height: 240px;
}

/* 毛玻璃背景装饰 */
.stat-card-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(0, 113, 227, 0.03) 0%, 
        rgba(255, 59, 48, 0.03) 100%);
    border-radius: 24px;
    pointer-events: none;
}

/* 悬停交互效果 */
.hero-stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 20px 48px rgba(0, 0, 0, 0.12),
        0 8px 20px rgba(0, 0, 0, 0.08);
}

/* 图标样式 - 开放封闭原则(OCP) */
.hero-stat-card .stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    box-shadow: 0 8px 24px rgba(0, 113, 227, 0.25);
    position: relative;
    z-index: 2;
}

.hero-stat-card .stat-icon i {
    font-size: 1.8rem;
    color: white;
    animation: iconFloat 2s ease-in-out infinite;
}

/* 内容区域 */
.hero-stat-card .stat-content {
    position: relative;
    z-index: 2;
}

/* 数字显示 */
.stat-number-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: 12px;
}

.hero-stat-card .stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: numberGlow 1.5s ease-in-out infinite;
}

.hero-stat-card .stat-suffix {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    opacity: 0.9;
}

/* 标签文字 */
.hero-stat-card .stat-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

/* 特色元素 - 避免重复原则(DRY) */
.stat-trend {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 0.875rem;
    color: var(--success-color);
    font-weight: 500;
}

.stat-trend i {
    font-size: 1rem;
    animation: trendPulse 1.5s ease-in-out infinite;
}

/* 进度条样式 */
.stat-progress {
    width: 100%;
    margin-top: 16px;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(0, 113, 227, 0.1);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 3px;
    width: 0%;
    transition: width 2s cubic-bezier(0.4, 0, 0.2, 1);
    animation: progressShimmer 2s ease-in-out infinite;
}

/* 高亮文字 */
.stat-highlight {
    margin-top: 12px;
}

.highlight-text {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(255, 59, 48, 0.1));
    color: var(--primary-color);
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(0, 113, 227, 0.2);
}

/* 质量星级 */
.stat-quality {
    margin-top: 12px;
}

.quality-stars {
    display: flex;
    justify-content: center;
    gap: 2px;
}

.quality-stars i {
    font-size: 1.2rem;
    color: #ff9500;
    animation: starTwinkle 2s ease-in-out infinite;
}

/* 卡片特定样式 - 接口隔离原则(ISP) */
.students-card .stat-icon {
    background: linear-gradient(135deg, #30d158, #34d399);
    box-shadow: 0 8px 24px rgba(48, 209, 88, 0.25);
}

.award-rate-card .stat-icon {
    background: linear-gradient(135deg, #ff9500, #ffb340);
    box-shadow: 0 8px 24px rgba(255, 149, 0, 0.25);
}

.awards-card .stat-icon {
    background: linear-gradient(135deg, #ff3b30, #ff6b35);
    box-shadow: 0 8px 24px rgba(255, 59, 48, 0.25);
}

.courses-card .stat-icon {
    background: linear-gradient(135deg, #0071e3, #5e72e4);
    box-shadow: 0 8px 24px rgba(0, 113, 227, 0.25);
}

/* 动画定义 */
@keyframes iconFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-4px); }
}

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

@keyframes trendPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes progressShimmer {
    0% { box-shadow: 0 0 0 rgba(0, 113, 227, 0.4); }
    50% { box-shadow: 0 0 20px rgba(0, 113, 227, 0.6); }
    100% { box-shadow: 0 0 0 rgba(0, 113, 227, 0.4); }
}

@keyframes starTwinkle {
    0%, 100% { opacity: 1; transform: scale(1); }
    25% { opacity: 0.7; transform: scale(0.95); }
    50% { opacity: 1; transform: scale(1.05); }
    75% { opacity: 0.8; transform: scale(0.98); }
}

/* 响应式适配 - 依赖倒置原则(DIP) */
@media (max-width: 768px) {
    .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .hero-stat-card {
        padding: 24px 16px;
        min-height: 200px;
    }
    
    .hero-stat-card .stat-number {
        font-size: 2.8rem;
    }
    
    .hero-stat-card .stat-suffix {
        font-size: 2rem;
    }
    
    .hero-stat-card .stat-icon {
        width: 50px;
        height: 50px;
        margin-bottom: 16px;
    }
    
    .hero-stat-card .stat-icon i {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .hero-stat-card {
        min-height: 180px;
        padding: 20px 12px;
    }
    
    .hero-stat-card .stat-number {
        font-size: 2.4rem;
    }
    
    .hero-stat-card .stat-suffix {
        font-size: 1.8rem;
    }
}

/* ================================
   兼容旧版Stats样式 - 向后兼容
   ================================ */
/* Stats Container */
.stats-container {
    margin: 50px 0;
}

.stat-card {
    text-align: center;
    padding: 20px;
    margin-bottom: 20px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    display: inline-block;
}

.stat-suffix {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-color);
    display: inline-block;
}

.stat-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
    line-height: 1;
}

.stat-label {
    font-size: 1rem;
    color: var(--light-text);
    margin-top: 8px;
}

.hero-cta {
    margin-top: 50px;
}

.hero-cta .btn {
    margin: 10px;
}

/* ================================
   Section Styles
   ================================ */
.section {
    padding: var(--section-padding);
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-color);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--light-text);
}

/* ================================
   Features Section
   ================================ */
.features-section {
    background: var(--secondary-color);
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--hover-shadow);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card h4 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.feature-card p {
    color: var(--light-text);
    font-size: 1.1rem;
}

/* ================================
   Why Choose Section
   ================================ */
.choice-card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    height: 100%;
    border: 2px solid transparent;
}

.choice-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.choice-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: rgba(0, 113, 227, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.choice-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

/* ================================
   Courses Section
   ================================ */
.courses-section {
    background: var(--secondary-color);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.course-category {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.course-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.course-header {
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--secondary-color);
}

.course-header h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.course-header h3 i {
    margin-right: 10px;
    color: var(--primary-color);
}

.course-header p {
    color: var(--light-text);
    font-size: 1rem;
    margin: 0;
}

.course-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.course-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: rgba(0, 113, 227, 0.05);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.course-item:hover {
    background: rgba(0, 113, 227, 0.1);
}

.course-name {
    font-weight: 500;
    color: var(--text-color);
}

.course-count {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9rem;
}

/* ================================
   Service Process Section - 全新优化版
   ================================ */
.service-process-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
    position: relative;
    overflow: hidden;
}

.service-process-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="service-grid" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="%23e2e8f0" stroke-width="0.3"/></pattern></defs><rect width="100" height="100" fill="url(%23service-grid)"/></svg>');
    opacity: 0.4;
    z-index: 0;
}

.service-process-section .container {
    position: relative;
    z-index: 1;
}

/* 时间线容器 */
.process-timeline {
    display: flex;
    flex-direction: column;
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

/* 中央连接线已移除 */

/* 阶段卡片基础样式 */
.process-stage {
    display: flex;
    align-items: center;
    gap: 40px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    padding: 35px 30px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.1),
        0 8px 25px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    margin: 0 40px;
    overflow: hidden;
}

/* 交错布局 */
.process-stage:nth-child(1) {
    margin-right: 20%;
    flex-direction: row;
}

.process-stage:nth-child(2) {
    margin-left: 20%;
    flex-direction: row-reverse;
}

.process-stage:nth-child(3) {
    margin-right: 20%;
    flex-direction: row;
}

/* 悬停效果 */
.process-stage:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 
        0 30px 60px rgba(0, 0, 0, 0.15),
        0 12px 35px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* 阶段特定背景渐变 */
.process-stage:nth-child(1)::before {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(129, 140, 248, 0.08) 100%);
}

.process-stage:nth-child(2)::before {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05) 0%, rgba(251, 191, 36, 0.08) 100%);
}

.process-stage:nth-child(3)::before {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(52, 211, 153, 0.08) 100%);
}

.process-stage::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 24px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.process-stage:hover::before {
    opacity: 1;
}

/* 图标容器优化 */
.stage-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 
        0 15px 35px rgba(0, 0, 0, 0.15),
        0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 各阶段图标色彩 */
.process-stage:nth-child(1) .stage-icon {
    background: linear-gradient(135deg, #4f46e5 0%, #818cf8 100%);
}

.process-stage:nth-child(2) .stage-icon {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
}

.process-stage:nth-child(3) .stage-icon {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
}

.stage-icon:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 
        0 20px 45px rgba(0, 0, 0, 0.2),
        0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 图标脉动效果 */
.stage-icon::after {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    background: inherit;
    opacity: 0;
    animation: iconPulse 3s ease-in-out infinite;
    z-index: -1;
}

.process-stage:nth-child(1) .stage-icon::after {
    animation-delay: 0s;
}

.process-stage:nth-child(2) .stage-icon::after {
    animation-delay: 1s;
}

.process-stage:nth-child(3) .stage-icon::after {
    animation-delay: 2s;
}

@keyframes iconPulse {
    0%, 100% {
        opacity: 0;
        transform: scale(0.8);
    }
    50% {
        opacity: 0.3;
        transform: scale(1.1);
    }
}

.stage-icon i {
    font-size: 2.5rem;
    color: white;
    animation: iconFloat 4s ease-in-out infinite;
}

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

/* 内容区域 */
.stage-content {
    flex: 1;
    padding: 10px 0;
}

.stage-content h3 {
    color: var(--text-color);
    margin-bottom: 25px;
    font-size: 1.8rem;
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
}

.stage-content h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    border-radius: 2px;
    transition: width 0.3s ease;
}

.process-stage:nth-child(1) .stage-content h3::after {
    background: linear-gradient(90deg, #4f46e5, #818cf8);
}

.process-stage:nth-child(2) .stage-content h3::after {
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
}

.process-stage:nth-child(3) .stage-content h3::after {
    background: linear-gradient(90deg, #10b981, #34d399);
}

.process-stage:hover .stage-content h3::after {
    width: 100px;
}

/* 列表样式优化 */
.stage-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.stage-content li {
    margin-bottom: 15px;
    padding: 12px 20px 12px 60px;
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.6);
    border-radius: 12px;
    border-left: 4px solid transparent;
    font-size: 1rem;
    line-height: 1.6;
    transition: all 0.3s ease;
    position: relative;
    backdrop-filter: blur(5px);
}

/* 各阶段列表项左边框色彩 */
.process-stage:nth-child(1) .stage-content li {
    border-left-color: #4f46e5;
}

.process-stage:nth-child(2) .stage-content li {
    border-left-color: #f59e0b;
}

.process-stage:nth-child(3) .stage-content li {
    border-left-color: #10b981;
}

.stage-content li:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* emoji 图标美化 */
.stage-content li::before {
    content: attr(data-emoji);
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    animation: emojiSway 2s ease-in-out infinite;
}

@keyframes emojiSway {
    0%, 100% { 
        transform: translateY(-50%) rotate(0deg); 
    }
    50% { 
        transform: translateY(-50%) rotate(5deg); 
    }
}

/* 响应式设计优化 */
@media (max-width: 1024px) {
    .process-timeline {
        gap: 50px;
    }
    
    .process-stage:nth-child(1),
    .process-stage:nth-child(2),
    .process-stage:nth-child(3) {
        margin: 0 20px;
        flex-direction: row;
    }
}

@media (max-width: 768px) {
    .process-timeline {
        gap: 40px;
    }
    
    .process-stage {
        flex-direction: column !important;
        text-align: center;
        margin: 0 10px;
        padding: 25px 20px;
        gap: 25px;
    }
    
    .stage-icon {
        width: 80px;
        height: 80px;
    }
    
    .stage-icon i {
        font-size: 2rem;
    }
    
    .stage-content h3 {
        font-size: 1.5rem;
        text-align: center;
    }
    
    .stage-content h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .stage-content li {
        padding: 10px 15px 10px 45px;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .process-stage {
        margin: 0 5px;
        padding: 20px 15px;
    }
    
    .stage-icon {
        width: 70px;
        height: 70px;
    }
    
    .stage-icon i {
        font-size: 1.8rem;
    }
    
    .stage-content h3 {
        font-size: 1.3rem;
    }
    
    .stage-content li {
        padding: 8px 12px 8px 40px;
        font-size: 0.9rem;
        margin-bottom: 12px;
    }
    
    .stage-content li::before {
        left: 15px;
        font-size: 1rem;
    }
}

/* ================================
   Premium Target Audience Section
   ================================ */
.premium-audience-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.premium-audience-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e2e8f0" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    z-index: 0;
}

.premium-section-header {
    text-align: center;
    margin-bottom: 80px;
    position: relative;
    z-index: 1;
}

.premium-section-header h2 {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #4f46e5 0%, #059669 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.premium-section-header p {
    font-size: 1.3rem;
    color: var(--light-text);
    font-weight: 400;
}

.premium-cards-container {
    position: relative;
    z-index: 1;
}

/* Premium Card Styles */
.premium-card {
    position: relative;
    height: 100%;
    min-height: 600px;
    border-radius: 24px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    margin-bottom: 30px;
}

.premium-card:hover {
    transform: translateY(-12px) scale(1.02);
}

.student-premium-card {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    box-shadow: 0 20px 60px rgba(79, 70, 229, 0.3);
}

.student-premium-card:hover {
    box-shadow: 0 30px 80px rgba(79, 70, 229, 0.4);
}

.teacher-premium-card {
    background: linear-gradient(135deg, #059669 0%, #0d9488 100%);
    box-shadow: 0 20px 60px rgba(5, 150, 105, 0.3);
}

.teacher-premium-card:hover {
    box-shadow: 0 30px 80px rgba(5, 150, 105, 0.4);
}

.premium-card-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="circuit" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="2" cy="2" r="1" fill="rgba(255,255,255,0.1)"/><path d="M2,2 L18,2 M2,2 L2,18" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23circuit)"/></svg>');
    opacity: 0.6;
    z-index: 0;
}

.premium-card-content {
    position: relative;
    z-index: 1;
    padding: 40px 30px;
    color: white;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* Card Header */
.premium-card-header {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.premium-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.student-icon {
    background: rgba(245, 158, 11, 0.2);
}

.teacher-icon {
    background: rgba(217, 119, 6, 0.2);
}

.premium-icon i {
    font-size: 2.5rem;
    color: white;
}

.premium-card-title h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: white;
}

.premium-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 400;
    margin: 0;
}

/* Features Section */
.premium-features {
    margin: 30px 0;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-icon {
    font-size: 1.8rem;
    margin-right: 15px;
    flex-shrink: 0;
    line-height: 1;
}

.feature-text {
    flex: 1;
}

.feature-text strong {
    display: block;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: white;
}

.feature-text span {
    font-size: 0.95rem;
    opacity: 0.85;
    line-height: 1.4;
}

/* Value Promise */
.value-promise {
    margin: 25px 0;
    text-align: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.value-promise p {
    font-size: 1.1rem;
    font-weight: 500;
    font-style: italic;
    margin: 0;
    color: rgba(255, 255, 255, 0.95);
}

/* Price Highlight */
.price-highlight {
    text-align: center;
    margin: 25px 0;
    padding: 20px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(217, 119, 6, 0.2) 100%);
    border-radius: 16px;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.current-price {
    font-size: 3rem;
    font-weight: 800;
    color: #fbbf24;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.price-desc {
    font-size: 1rem;
    opacity: 0.9;
    margin-top: 5px;
}

/* Installment Banner Styles */
.installment-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: 15px;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15) 0%, rgba(16, 185, 129, 0.15) 100%);
    border-radius: 12px;
    border: 1px solid rgba(34, 197, 94, 0.25);
    margin-bottom: 10px;
}

.installment-icon {
    font-size: 2rem;
    animation: pulse 2s infinite;
}

.installment-text {
    text-align: left;
}

.installment-main {
    font-size: 1.1rem;
    font-weight: 700;
    color: #10b981;
    margin-bottom: 4px;
}

.installment-sub {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* Group Discount Highlight */
.group-discount-highlight {
    text-align: center;
    margin: 25px 0;
    padding: 20px;
    background: linear-gradient(135deg, rgba(217, 119, 6, 0.2) 0%, rgba(194, 65, 12, 0.2) 100%);
    border-radius: 16px;
    border: 1px solid rgba(217, 119, 6, 0.3);
}

.discount-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
    margin-bottom: 5px;
}

.discount-amount {
    font-size: 2.5rem;
    font-weight: 800;
    color: #f59e0b;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.discount-desc {
    font-size: 1rem;
    opacity: 0.9;
    margin-top: 5px;
}

/* Premium Buttons */
.premium-buttons {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.btn-premium {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-premium:hover::before {
    left: 100%;
}

.btn-premium.primary {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: #1f2937;
    box-shadow: 0 8px 25px rgba(251, 191, 36, 0.4);
}

.btn-premium.primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 12px 35px rgba(251, 191, 36, 0.6);
    color: #1f2937;
}

.btn-premium.secondary {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-premium.secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px) scale(1.02);
    color: white;
}

.btn-premium i {
    font-size: 1.2rem;
}

/* Responsive Design for Premium Cards */
@media (max-width: 991px) {
    .premium-audience-section {
        padding: 80px 0;
    }
    
    .premium-section-header h2 {
        font-size: 2.5rem;
    }
    
    .premium-card {
        min-height: auto;
        margin-bottom: 40px;
    }
    
    .premium-card-content {
        padding: 30px 25px;
    }
    
    .premium-card-header {
        flex-direction: column;
        text-align: center;
    }
    
    .premium-icon {
        margin-right: 0;
        margin-bottom: 20px;
    }
}

@media (max-width: 767px) {
    .premium-audience-section {
        padding: 60px 0;
    }
    
    .premium-section-header {
        margin-bottom: 50px;
    }
    
    .premium-section-header h2 {
        font-size: 2rem;
    }
    
    .premium-section-header p {
        font-size: 1.1rem;
    }
    
    .premium-card-content {
        padding: 25px 20px;
    }
    
    .premium-card-title h3 {
        font-size: 1.8rem;
    }
    
    .premium-subtitle {
        font-size: 1rem;
    }
    
    .feature-item {
        margin-bottom: 15px;
        padding: 12px;
    }
    
    .feature-text strong {
        font-size: 1rem;
    }
    
    .feature-text span {
        font-size: 0.9rem;
    }
    
    .current-price, .discount-amount {
        font-size: 2.5rem;
    }
    
    .btn-premium {
        padding: 14px 20px;
        font-size: 1rem;
    }
}

/* Animation Effects */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.premium-icon {
    animation: float 2s ease-in-out infinite;
}

.student-icon {
    animation-delay: 0s;
}

.teacher-icon {
    animation-delay: 1s;
}

/* ================================
   Guarantee Section
   ================================ */
.guarantee-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 50px;
    box-shadow: var(--card-shadow);
    max-width: 1000px;
    margin: 0 auto;
}

.guarantee-promise {
    text-align: center;
    margin-bottom: 40px;
}

.guarantee-promise h3 {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.guarantee-conditions h4 {
    color: var(--text-color);
    margin-bottom: 30px;
}

.condition-item {
    text-align: center;
    padding: 20px;
}

.condition-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.condition-item h5 {
    margin-bottom: 10px;
    color: var(--text-color);
}

.condition-item p {
    color: var(--light-text);
    font-size: 0.9rem;
}

.guarantee-process {
    margin: 40px 0;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 20px;
}

.process-step {
    flex: 1;
    text-align: center;
    padding: 20px;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    margin: 0 auto 15px;
}

.step-content h5 {
    margin-bottom: 10px;
    color: var(--text-color);
}

.step-content p {
    color: var(--light-text);
    font-size: 0.9rem;
}

.legal-notice {
    margin-top: 30px;
    padding: 25px;
    background: rgba(48, 209, 88, 0.1);
    border-radius: 12px;
}

.legal-notice h5 {
    color: var(--success-color);
    margin-bottom: 15px;
}

.success-tip {
    margin-top: 15px;
    padding: 15px;
    background: rgba(255, 149, 0, 0.1);
    border-radius: 8px;
    color: var(--warning-color);
    font-weight: 500;
}

/* ================================
   Contact Section
   ================================ */
.contact-section {
    background: var(--secondary-color);
    text-align: center;
}

.contact-steps {
    margin-bottom: 50px;
}

.step-item {
    padding: 30px 20px;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.step-icon i {
    font-size: 2rem;
    color: white;
}

.step-item h4 {
    margin-bottom: 10px;
    color: var(--text-color);
}

.step-item p {
    color: var(--light-text);
}

.contact-info {
    margin-bottom: 50px;
}

.wechat-contact {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    max-width: 500px;
    margin: 0 auto;
}

.wechat-contact h3 {
    margin-bottom: 20px;
    color: var(--text-color);
}

.wechat-id {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color);
}

.wechat-id i {
    font-size: 2rem;
}

.final-cta h3 {
    color: var(--text-color);
    margin-bottom: 15px;
}

.final-cta p {
    color: var(--light-text);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

/* ================================
   Footer
   ================================ */
.footer {
    background: var(--text-color);
    color: white;
    text-align: center;
    padding: 50px 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-brand h4 {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
}

.footer-info p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 5px;
}

.footer-info em {
    color: rgba(255, 255, 255, 0.8);
    font-style: italic;
}

/* ================================
   Animations
   ================================ */
.pulse-animation {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.fade-in {
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ================================
   Motivational Message Component
   ================================ */
.motivational-message {
    position: relative;
    padding: 30px 40px;
    margin: 40px 0;
    background: linear-gradient(135deg, 
        rgba(255, 59, 48, 0.05) 0%, 
        rgba(0, 113, 227, 0.05) 50%, 
        rgba(48, 209, 88, 0.05) 100%);
    border-radius: var(--border-radius);
    border: 2px solid transparent;
    background-clip: padding-box;
    box-shadow: var(--card-shadow);
    overflow: hidden;
    animation: motivationalEntrance 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    transform: translateY(50px) scale(0.95);
    opacity: 0;
}

.motivational-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.motivational-message::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.motivational-message:hover::after {
    opacity: 0.1;
}

.motivational-text {
    text-align: center;
    position: relative;
    z-index: 1;
}

.motivational-line {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--text-color);
    position: relative;
}

.motivational-line:last-child {
    margin-bottom: 0;
}

.motivational-emoji {
    font-size: 1.8rem;
    margin-right: 12px;
    display: inline-block;
    animation: emojiFloat 2s ease-in-out infinite;
}

.motivational-line:nth-child(1) .motivational-emoji {
    animation-delay: 0s;
}

.motivational-line:nth-child(2) .motivational-emoji {
    animation-delay: 1.5s;
}

.motivational-text-content {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    position: relative;
    display: inline-block;
    animation: textShimmer 2.5s ease-in-out infinite;
}

.motivational-text-content::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.4) 50%, 
        transparent 100%);
    animation: textHighlight 2s ease-in-out infinite;
}

.motivational-highlight {
    position: relative;
    display: inline-block;
    color: var(--accent-color);
    font-weight: 800;
    text-shadow: 0 2px 4px rgba(255, 59, 48, 0.2);
}

.motivational-highlight::before {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    animation: underlineGrow 1.2s ease-out forwards;
    animation-delay: 1s;
}

/* Compact version for smaller spaces */
.motivational-message.compact {
    padding: 20px 25px;
    margin: 20px 0;
}

.motivational-message.compact .motivational-line {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.motivational-message.compact .motivational-emoji {
    font-size: 1.5rem;
    margin-right: 8px;
}

/* Floating version for special emphasis */
.motivational-message.floating {
    animation: motivationalFloat 4s ease-in-out infinite;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

/* Pulsing urgency version */
.motivational-message.urgent {
    animation: motivationalPulse 1.5s ease-in-out infinite;
}

/* Keyframe animations */
@keyframes motivationalEntrance {
    0% {
        transform: translateY(50px) scale(0.95);
        opacity: 0;
    }
    60% {
        transform: translateY(-10px) scale(1.02);
        opacity: 0.8;
    }
    100% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

@keyframes emojiFloat {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
    }
    25% { 
        transform: translateY(-8px) rotate(-2deg); 
    }
    50% { 
        transform: translateY(-12px) rotate(0deg); 
    }
    75% { 
        transform: translateY(-4px) rotate(2deg); 
    }
}

@keyframes textShimmer {
    0%, 100% { 
        background-position: -200% center; 
    }
    50% { 
        background-position: 200% center; 
    }
}

@keyframes textHighlight {
    0% { 
        left: -100%; 
    }
    50% { 
        left: 100%; 
    }
    100% { 
        left: 100%; 
    }
}

@keyframes underlineGrow {
    0% { 
        width: 0; 
    }
    100% { 
        width: 100%; 
    }
}

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

@keyframes motivationalPulse {
    0%, 100% { 
        transform: scale(1); 
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1); 
    }
    50% { 
        transform: scale(1.02); 
        box-shadow: 0 15px 40px rgba(255, 59, 48, 0.2); 
    }
}

/* ================================
   Responsive Design
   ================================ */
@media (max-width: 1199px) {
    .container {
        padding: 0 15px;
    }
    
    .main-title {
        font-size: 3rem;
    }
}

@media (max-width: 991px) {
    .main-title {
        font-size: 2.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .process-stage {
        flex-direction: column;
        text-align: center;
    }
    
    .process-steps {
        flex-direction: column;
        gap: 30px;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767px) {
    :root {
        --section-padding: 50px 0;
    }
    
    .hero-section {
        padding: 100px 0 60px;
    }
    
    .main-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .stat-number, .stat-suffix {
        font-size: 2rem;
    }
    
    .stat-display {
        gap: 1px;
    }
    
    .hero-cta .btn {
        display: block;
        margin: 10px auto;
        max-width: 280px;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .feature-card, .choice-card {
        margin-bottom: 20px;
    }
    
    .guarantee-card {
        padding: 30px 20px;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .course-category {
        padding: 20px;
    }
    
    .process-stage {
        padding: 20px;
    }
    
    .audience-card {
        padding: 20px;
        margin-bottom: 30px;
    }
}

@media (max-width: 575px) {
    .container {
        padding: 0 10px;
    }
    
    .main-title {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .btn-lg {
        padding: 15px 25px;
        font-size: 1rem;
    }
    
    .stat-card {
        padding: 15px 10px;
    }
    
    .stat-number, .stat-suffix {
        font-size: 1.8rem;
    }
    
    .stat-display {
        gap: 0;
    }
    
    .feature-icon, .stage-icon, .step-icon {
        width: 60px;
        height: 60px;
    }
    
    .feature-icon i, .stage-icon i, .step-icon i {
        font-size: 1.5rem;
    }
}

/* ================================
   Motivational Message Responsive
   ================================ */
@media (max-width: 991px) {
    .motivational-message {
        padding: 25px 30px;
        margin: 30px 0;
    }
    
    .motivational-line {
        font-size: 1.3rem;
        flex-direction: row;
        text-align: center;
    }
    
    .motivational-emoji {
        font-size: 1.6rem;
        margin-right: 10px;
    }
}

@media (max-width: 767px) {
    .motivational-message {
        padding: 20px 25px;
        margin: 25px 0;
        border-radius: 12px;
    }
    
    .motivational-line {
        font-size: 1.2rem;
        margin-bottom: 12px;
        flex-direction: column;
        gap: 8px;
    }
    
    .motivational-emoji {
        font-size: 1.5rem;
        margin-right: 0;
        margin-bottom: 5px;
    }
    
    .motivational-message.compact {
        padding: 15px 20px;
        margin: 15px 0;
    }
    
    .motivational-message.compact .motivational-line {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }
    
    .motivational-message.compact .motivational-emoji {
        font-size: 1.3rem;
    }
}

@media (max-width: 575px) {
    .motivational-message {
        padding: 18px 20px;
        margin: 20px 0;
        border-radius: 10px;
    }
    
    .motivational-line {
        font-size: 1.1rem;
        margin-bottom: 10px;
        line-height: 1.4;
    }
    
    .motivational-emoji {
        font-size: 1.4rem;
    }
    
    .motivational-text-content {
        font-size: inherit;
        line-height: 1.4;
    }
    
    .motivational-message.compact {
        padding: 12px 15px;
        margin: 12px 0;
    }
    
    .motivational-message.compact .motivational-line {
        font-size: 1rem;
        margin-bottom: 6px;
    }
    
    .motivational-message.compact .motivational-emoji {
        font-size: 1.2rem;
    }
    
    /* 简化移动端动画 */
    .motivational-message {
        animation: simpleFadeIn 0.8s ease forwards;
    }
    
    .motivational-emoji {
        animation: simpleFloat 2.5s ease-in-out infinite;
    }
    
    .motivational-text-content::after {
        animation: none; /* 移除光效动画节省性能 */
    }
}

/* 移动端简化动画 */
@keyframes simpleFadeIn {
    from { 
        opacity: 0; 
        transform: translateY(20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes simpleFloat {
    0%, 100% { 
        transform: translateY(0px); 
    }
    50% { 
        transform: translateY(-6px); 
    }
}

/* ================================
   Accessibility & Performance
   ================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
.btn:focus, .nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        --hover-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    }
}

/* Print styles */
@media print {
    .navbar, .hero-cta, .final-cta, .footer {
        display: none;
    }
    
    .section {
        padding: 20px 0;
    }
    
    * {
        box-shadow: none !important;
    }
}

/* ================================
   优化后的激励信息组件
   ================================ */
.premium-motivational-card {
    position: relative;
    background: linear-gradient(145deg, 
        rgba(255, 255, 255, 0.95) 0%, 
        rgba(248, 250, 252, 0.98) 100%);
    border: 3px solid transparent;
    border-radius: 20px;
    padding: 35px;
    margin: 40px auto;
    max-width: 650px;
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.1),
        0 10px 25px rgba(0, 113, 227, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(15px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
}

.premium-motivational-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-gradient);
    border-radius: 20px;
    padding: 3px;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: subtract;
    z-index: -1;
    animation: borderGlow 2s ease-in-out infinite alternate;
}

.premium-motivational-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 35px 70px rgba(0, 0, 0, 0.15),
        0 15px 35px rgba(0, 113, 227, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* 时间紧迫性指示器 */
.motivational-header {
    text-align: center;
    margin-bottom: 25px;
}

.time-urgency-indicator {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #ff3b30 0%, #ff6b35 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 59, 48, 0.3);
    animation: urgencyPulse 1.5s ease-in-out infinite;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    animation: dotPulse 1s ease-in-out infinite;
}

/* 主要消息内容 */
.motivational-content {
    text-align: center;
}

.primary-message {
    margin-bottom: 20px;
    position: relative;
}

.primary-message h3 {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
    line-height: 1.3;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.message-subtitle {
    display: block;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--light-text);
    margin-top: 8px;
    font-style: italic;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.primary-message:hover .message-subtitle {
    opacity: 1;
}

.secondary-message {
    margin-bottom: 25px;
}

.secondary-message p {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
    line-height: 1.4;
}

.action-emphasis {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-top: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 0 1px 3px rgba(0, 113, 227, 0.3);
    transition: all 0.3s ease;
    cursor: default;
}

.secondary-message:hover .action-emphasis {
    transform: scale(1.05);
    letter-spacing: 1.5px;
    text-shadow: 0 2px 6px rgba(0, 113, 227, 0.5);
}

.highlight-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 10px;
    animation: iconFloat 2s ease-in-out infinite;
}

.trend-icon {
    color: var(--success-color);
    filter: drop-shadow(0 2px 4px rgba(48, 209, 88, 0.3));
}

.target-icon {
    color: var(--primary-color);
    filter: drop-shadow(0 2px 4px rgba(0, 113, 227, 0.3));
}

.primary-message .highlight-icon {
    animation-delay: 0s;
}

.secondary-message .highlight-icon {
    animation-delay: 1.5s;
}

/* 成功统计数据 */
.success-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 25px;
    padding: 20px;
    background: rgba(0, 113, 227, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(0, 113, 227, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-item strong {
    display: block;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-item span {
    font-size: 0.9rem;
    color: var(--light-text);
    font-weight: 500;
}

.stat-divider {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 300;
    opacity: 0.5;
}

/* 优化后的CTA按钮 */
.enhanced-cta-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 32px;
    margin-top: 30px;
    background: var(--primary-gradient);
    border: none;
    border-radius: 50px;
    color: white;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 
        0 12px 30px rgba(0, 113, 227, 0.4),
        0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
}

.enhanced-cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: left 0.6s;
}

.enhanced-cta-btn:hover::before {
    left: 100%;
}

.enhanced-cta-btn:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 
        0 20px 40px rgba(0, 113, 227, 0.5),
        0 8px 25px rgba(0, 0, 0, 0.15);
    color: white;
}

.btn-icon {
    font-size: 1.3rem;
    animation: iconBounce 1.5s ease-in-out infinite;
}

.btn-text {
    font-weight: 700;
}

.btn-arrow {
    font-size: 1.2rem;
    font-weight: 700;
    transform: translateX(0);
    transition: transform 0.3s ease;
}

.enhanced-cta-btn:hover .btn-arrow {
    transform: translateX(5px);
}

/* 动画效果 */
@keyframes borderGlow {
    0%, 100% { 
        opacity: 0.6; 
    }
    50% { 
        opacity: 1; 
    }
}

@keyframes urgencyPulse {
    0%, 100% { 
        transform: scale(1); 
        box-shadow: 0 4px 15px rgba(255, 59, 48, 0.3);
    }
    50% { 
        transform: scale(1.05); 
        box-shadow: 0 6px 20px rgba(255, 59, 48, 0.5);
    }
}

@keyframes dotPulse {
    0%, 100% { 
        opacity: 1; 
        transform: scale(1);
    }
    50% { 
        opacity: 0.5; 
        transform: scale(0.8);
    }
}

@keyframes iconFloat {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
    }
    25% { 
        transform: translateY(-6px) rotate(-1deg); 
    }
    50% { 
        transform: translateY(-10px) rotate(0deg); 
    }
    75% { 
        transform: translateY(-4px) rotate(1deg); 
    }
}

@keyframes iconBounce {
    0%, 100% { 
        transform: scale(1) rotate(0deg); 
    }
    50% { 
        transform: scale(1.1) rotate(-2deg); 
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .premium-motivational-card {
        padding: 25px 20px;
        margin: 30px 15px;
        border-radius: 16px;
    }
    
    .primary-message h3 {
        font-size: 1.5rem;
    }
    
    .secondary-message p {
        font-size: 1.2rem;
    }
    
    .success-stats {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }
    
    .stat-divider {
        display: none;
    }
    
    .enhanced-cta-btn {
        padding: 16px 28px;
        font-size: 1rem;
        width: 100%;
        max-width: 300px;
    }
    
    .highlight-icon {
        font-size: 1.6rem;
    }
}

@media (max-width: 480px) {
    .premium-motivational-card {
        padding: 20px 15px;
        margin: 20px 10px;
    }
    
    .primary-message h3 {
        font-size: 1.3rem;
        line-height: 1.4;
    }
    
    .secondary-message p {
        font-size: 1.1rem;
    }
    
    .time-urgency-indicator {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
    
    .stat-item strong {
        font-size: 1.4rem;
    }
    
    .stat-item span {
        font-size: 0.8rem;
    }
}

/* 新增激励卡片样式优化 */
.urgency-text {
    position: relative;
    z-index: 2;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-size: 0.85rem;
    font-weight: 800;
}

/* 影响力声明 */
.impact-statement {
    text-align: center;
    margin-bottom: 30px;
}

.main-headline {
    font-size: 2.2rem;
    font-weight: 900;
    color: #1a1a2e;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #ff3b30 0%, #0071e3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.sub-headline {
    font-size: 1.1rem;
    color: #64748b;
    font-weight: 500;
    letter-spacing: -0.3px;
}

/* 决策点 */
.decision-points {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 30px 0;
}

.point-item {
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease;
}

.point-item.critical {
    background: linear-gradient(135deg, #e0f2fe 0%, #dbeafe 100%);
    border: 2px solid #0ea5e9;
}

.point-item.warning {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border: 2px solid #ef4444;
    opacity: 0.8;
}

.point-item strong {
    display: block;
    font-size: 1.1rem;
    color: #1a1a2e;
    margin-bottom: 8px;
    font-weight: 700;
}

.point-item span {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.4;
}

/* 转化承诺 */
.transformation-promise {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 20px;
    border-radius: 12px;
    margin: 25px 0;
    text-align: center;
    border-left: 4px solid #0071e3;
}

.promise-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 8px;
}

.guarantee-text {
    font-size: 1rem;
    color: #64748b;
    font-weight: 500;
}

/* 成功证明 */
.success-proof {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 25px;
    padding: 25px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    margin: 25px 0;
}

.proof-item {
    text-align: center;
    flex: 1;
}

.proof-number {
    display: block;
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, #0071e3 0%, #ff3b30 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 5px;
}

.proof-label {
    font-size: 0.85rem;
    color: #64748b;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.proof-divider {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, #e2e8f0, transparent);
}

/* 稀缺性通知 */
.scarcity-notice {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    padding: 12px 24px;
    border-radius: 50px;
    margin: 20px auto 0;
    box-shadow: 0 4px 15px rgba(251, 191, 36, 0.3);
    animation: scarcityBounce 2s ease-in-out infinite;
}

.notice-badge {
    font-size: 0.9rem;
    font-weight: 700;
    color: #92400e;
}

.spots-left {
    font-size: 1.1rem;
    font-weight: 900;
    color: #dc2626;
    animation: numberFlash 1.5s ease-in-out infinite;
}

@keyframes scarcityBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

@keyframes numberFlash {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* 优化CTA按钮样式 */
.enhanced-cta-btn {
    padding: 20px 48px !important;
    background: linear-gradient(135deg, #ff3b30 0%, #ff6b35 100%) !important;
    border-radius: 50px !important;
    font-size: 1.3rem !important;
    font-weight: 800 !important;
    text-transform: uppercase;
    letter-spacing: 1px;
    animation: ctaPulse 2s ease-in-out infinite;
}

.enhanced-cta-btn:hover {
    transform: translateY(-3px) scale(1.05) !important;
    box-shadow: 
        0 20px 40px rgba(255, 59, 48, 0.5),
        0 10px 20px rgba(0, 0, 0, 0.2) !important;
}

@keyframes ctaPulse {
    0%, 100% { 
        box-shadow: 
            0 15px 35px rgba(255, 59, 48, 0.4),
            0 5px 15px rgba(0, 0, 0, 0.1);
    }
    50% { 
        box-shadow: 
            0 20px 40px rgba(255, 59, 48, 0.5),
            0 8px 20px rgba(0, 0, 0, 0.15);
    }
}

/* 响应式调整 */
@media (max-width: 768px) {
    .decision-points {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .main-headline {
        font-size: 1.8rem;
    }
    
    .success-proof {
        flex-direction: column;
        gap: 15px;
    }
    
    .proof-divider {
        width: 60px;
        height: 1px;
    }
}

/* ================================
   Student Awards Section
   ================================ */
.awards-section {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 50%, #ffffff 100%);
    padding: var(--section-padding);
    position: relative;
}

.awards-section .section-header h2 {
    background: linear-gradient(135deg, #ff6b35, #f7931e, #ffd700);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2.8rem;
    text-align: center;
    margin-bottom: 1rem;
}

.awards-section .section-header p {
    text-align: center;
    font-size: 1.2rem;
    color: var(--light-text);
    max-width: 600px;
    margin: 0 auto;
}

.awards-data {
    margin: 60px 0;
    position: relative;
}

.competition-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 50px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.competition-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    border-top: 4px solid transparent;
}

.competition-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--gradient-colors));
    border-radius: 22px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.competition-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.competition-card.ximenzi {
    border-top-color: #ff6b35;
    --gradient-colors: #ff6b35, #f7931e, #ffd700, #ff6b35;
}

.competition-card.qiansai {
    border-top-color: #4ecdc4;
    --gradient-colors: #4ecdc4, #44d2c8, #7fcdcd, #4ecdc4;
}

.competition-card.diansai {
    border-top-color: #a8e6cf;
    --gradient-colors: #a8e6cf, #7fcdcd, #88d8a3, #a8e6cf;
}

.competition-card.lanqiao {
    border-top-color: #0071e3;
    --gradient-colors: #0071e3, #ff3b30, #f7931e, #0071e3;
}

.competition-header {
    text-align: center;
    margin-bottom: 25px;
}

.competition-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: linear-gradient(135deg, var(--gradient-colors));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.competition-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 5px;
}

.competition-subtitle {
    font-size: 0.9rem;
    color: var(--light-text);
}

.awards-breakdown {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
}

.award-item {
    text-align: center;
    flex: 1;
}

.award-number {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 5px;
    display: block;
}

.award-label {
    font-size: 0.85rem;
    color: var(--light-text);
    font-weight: 600;
}

.award-item.special .award-number {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.award-item.first .award-number {
    background: linear-gradient(135deg, #ffd700, #ff6b35);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.award-item.second .award-number {
    background: linear-gradient(135deg, #c0c0c0, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.award-item.third .award-number {
    background: linear-gradient(135deg, #cd7f32, #a8e6cf);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.total-summary {
    text-align: center;
    padding-top: 15px;
    border-top: 2px solid #f0f0f0;
}

.total-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 5px;
}

.total-label {
    font-size: 0.9rem;
    color: var(--light-text);
    font-weight: 600;
}

.data-disclaimer {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 16px;
    padding: 25px;
    margin: 40px 0;
    border: 2px solid #e9ecef;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
}

.disclaimer-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.disclaimer-note {
    color: var(--light-text);
    font-weight: 500;
}

.disclaimer-challenge {
    font-size: 1.1rem;
    font-weight: 600;
}

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

.challenge-highlight {
    background: linear-gradient(135deg, #ff3b30, #ff6b35);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.challenge-contact {
    color: var(--light-text);
    font-size: 0.9rem;
}

.disclaimer-stats {
    color: var(--light-text);
    font-size: 0.9rem;
    font-weight: 500;
}

/* 数字动画效果 */
.award-number.animate-complete,
.total-number.animate-complete {
    animation: numberPulse 0.6s ease;
}

@keyframes numberPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* 响应式设计优化 */
@media (max-width: 968px) {
    .competition-cards {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        gap: 25px;
        max-width: 600px;
    }
}

@media (max-width: 768px) {
    .competition-cards {
        gap: 20px;
        margin: 0 10px 40px;
    }
    
    .competition-card {
        padding: 25px 20px;
    }
    
    .competition-title {
        font-size: 1.2rem;
    }
    
    .awards-breakdown {
        flex-direction: column;
        gap: 15px;
    }
    
    .award-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 10px 15px;
        background: rgba(0, 0, 0, 0.03);
        border-radius: 10px;
    }
    
    .award-number {
        font-size: 1.5rem;
        margin-bottom: 0;
    }
    
    .data-disclaimer {
        padding: 20px 15px;
        margin: 30px 10px;
        font-size: 0.9rem;
    }
    
    .disclaimer-challenge {
        font-size: 1rem;
    }
    
    .disclaimer-stats {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .awards-section .section-header h2 {
        font-size: 2rem;
    }
    
    .competition-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .competition-title {
        font-size: 1.1rem;
    }
    
    .competition-subtitle {
        font-size: 0.8rem;
    }
    
    .award-number {
        font-size: 1.3rem;
    }
    
    .award-label {
        font-size: 0.75rem;
    }
}

.awards-stats {
    margin-top: 60px;
    padding: 40px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.awards-stats .stat-item {
    text-align: center;
    padding: 20px;
}

.awards-stats .stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    line-height: 1;
}

.awards-stats .stat-label {
    font-size: 1.1rem;
    color: var(--light-text);
    font-weight: 600;
}

/* ================================
   SVIP Premium Guarantee Section
   ================================ */
.svip-guarantee-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
    color: var(--text-color);
}

.svip-guarantee-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(0, 113, 227, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 59, 48, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.svip-section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.svip-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #ffd700 0%, #ffed4a 100%);
    color: #1a1a2e;
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 20px;
    position: relative;
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
}

.badge-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, #ffd700, #ffed4a, #ffd700);
    border-radius: 50px;
    z-index: -1;
    animation: shimmer 2s ease-in-out infinite alternate;
}

@keyframes shimmer {
    0% { opacity: 0.7; }
    100% { opacity: 1; }
}

.badge-icon {
    font-size: 1.1rem;
    /* 已移除动画效果，解决左右移动BUG */
}

.svip-main-title {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    color: var(--text-color);
}

.title-highlight {
    background: linear-gradient(135deg, #0071e3 0%, #ff3b30 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.svip-subtitle {
    font-size: 1.3rem;
    color: var(--light-text);
    font-weight: 500;
}

.svip-guarantee-container {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* Premium Promise Card */
.premium-promise-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 2px solid transparent;
    background-clip: padding-box;
    border-radius: 24px;
    padding: 50px;
    margin-bottom: 50px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 113, 227, 0.15);
    transition: all 0.3s ease;
}

.premium-promise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 24px;
    padding: 2px;
    background: linear-gradient(135deg, #0071e3 0%, #00a8ff 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.6;
}

.premium-promise-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(0, 113, 227, 0.2);
}

/* 已移除不必要的装饰元素 */

.promise-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    position: relative;
    z-index: 1;
}

.promise-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #0071e3 0%, #00a8ff 100%);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: #ffffff;
    box-shadow: 0 15px 35px rgba(0, 113, 227, 0.35);
    transform: rotate(-5deg);
    transition: all 0.3s ease;
}

.promise-icon:hover {
    transform: rotate(0deg) scale(1.05);
}

.promise-text h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.promise-text p {
    font-size: 1.3rem;
    color: var(--text-color);
    margin: 0;
}

.promise-percentage {
    text-align: center;
    padding: 25px;
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.08) 0%, rgba(0, 168, 255, 0.08) 100%);
    border-radius: 20px;
    min-width: 140px;
    border: 1px solid rgba(0, 113, 227, 0.15);
    transition: all 0.3s ease;
}

.promise-percentage:hover {
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.12) 0%, rgba(0, 168, 255, 0.12) 100%);
    transform: scale(1.05);
}

.percentage-number {
    display: block;
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, #0071e3 0%, #00a8ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.percentage-label {
    font-size: 1rem;
    color: #0071e3;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

/* Conditions Grid */
.svip-conditions-grid {
    margin-bottom: 50px;
}

.conditions-header {
    text-align: center;
    margin-bottom: 40px;
}

.conditions-header h4 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.header-icon {
    font-size: 1.5rem;
}

.condition-note {
    font-size: 1rem;
    color: var(--light-text);
    font-weight: 500;
    background: rgba(0, 113, 227, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
}

.conditions-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.condition-card {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 16px;
    padding: 30px 25px;
    position: relative;
    transition: all 0.3s ease;
    box-shadow: var(--card-shadow);
}

.condition-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--hover-shadow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #ffffff;
}

.card-number {
    width: 30px;
    height: 30px;
    background: rgba(0, 113, 227, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--primary-color);
}

.card-content h5 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 12px;
}

.card-content p {
    font-size: 1rem;
    color: var(--light-text);
    line-height: 1.5;
    margin-bottom: 20px;
}

.card-requirement {
    margin-top: auto;
}

.requirement-tag {
    display: inline-block;
    background: var(--primary-gradient);
    color: #ffffff;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}


/* Responsive Design */
@media (max-width: 768px) {
    .svip-main-title {
        font-size: 2.5rem;
    }
    
    .promise-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .conditions-cards {
        grid-template-columns: 1fr;
    }
    
}

/* ================================
   学习路线图专用样式
   ================================ */

/* 主要的学习路线section样式 */
.learning-roadmap-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.learning-roadmap-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(79, 70, 229, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 59, 48, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

/* 时间线容器 */
.roadmap-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 0;
}

/* 中央时间线 */
.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(
        to bottom,
        #4f46e5 0%, #818cf8 20%,
        #f59e0b 30%, #fbbf24 50%,
        #10b981 60%, #34d399 80%,
        #ff3b30 90%, #ff6b35 100%
    );
    border-radius: 2px;
    transform: translateX(-50%);
    box-shadow: 0 0 20px rgba(79, 70, 229, 0.3);
}

/* 单个学习步骤 */
.roadmap-step {
    position: relative;
    margin: 60px 0;
    display: flex;
    align-items: flex-start;
    gap: 30px;
}

/* 右侧步骤（奇数） */
.step-right {
    flex-direction: row;
    justify-content: flex-start;
}

.step-right .step-card {
    margin-left: 0;
}

/* 左侧步骤（偶数） */
.step-left {
    flex-direction: row-reverse;
    justify-content: flex-start;
}

.step-left .step-card {
    margin-right: 0;
}

/* 步骤标记器 */
.step-marker {
    position: relative;
    width: 100px;
    height: 100px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

/* 步骤编号 */
.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-color), #ff3b30);
    color: white;
    font-weight: 700;
    font-size: 14px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
}

/* 步骤图标容器 */
.step-icon {
    width: 70px;
    height: 70px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--card-shadow);
    border: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.step-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

/* 进度圆环 */
.step-progress {
    position: absolute;
    width: 100px;
    height: 100px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
}

.progress-circle {
    width: 100%;
    height: 100%;
    border: 3px solid rgba(0, 113, 227, 0.2);
    border-radius: 50%;
    position: relative;
    overflow: hidden;
}

.progress-circle::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border-radius: 50%;
    background: conic-gradient(var(--primary-color) 0deg, var(--primary-color) 270deg, transparent 270deg);
    opacity: 0;
    transition: opacity 0.6s ease;
}

/* 完成状态的进度圆环 */
.progress-circle.completion::before {
    opacity: 1;
    background: conic-gradient(var(--success-color) 0deg, var(--success-color) 360deg);
}

/* 步骤卡片 */
.step-card {
    flex: 1;
    max-width: 420px;
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.step-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--hover-shadow);
}

/* 不同类型卡片的主题色 */
.foundation-card {
    border-left-color: #4f46e5;
}

.peripherals-card {
    border-left-color: #f59e0b;
}

.systems-card {
    border-left-color: #10b981;
}

.networking-card {
    border-left-color: #06b6d4;
}

.algorithms-card {
    border-left-color: #8b5cf6;
}

.projects-card {
    border-left-color: #f97316;
}

.competition-card {
    border-left-color: #ef4444;
}

/* 卡片头部 */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--secondary-color);
}

.card-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-color);
    margin: 0;
}

.card-duration {
    font-size: 0.85rem;
    color: var(--light-text);
    background: rgba(0, 113, 227, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    white-space: nowrap;
}

/* 卡片摘要 */
.card-summary {
    margin-bottom: 20px;
}

.card-summary p {
    font-size: 1.1rem;
    color: var(--light-text);
    margin: 0;
    line-height: 1.5;
}

/* 可展开内容区域 */
.card-expandable {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.card-expandable.expanded {
    max-height: 800px;
}

.expand-content {
    padding-top: 20px;
    border-top: 1px solid var(--secondary-color);
}

/* 学习目标部分 */
.learning-objectives h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.learning-objectives ul {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
}

.learning-objectives li {
    font-size: 0.95rem;
    color: var(--light-text);
    line-height: 1.6;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.learning-objectives li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 课程资源部分 */
.course-resources {
    margin-bottom: 20px;
}

.course-resources h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.resource-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.resource-tag {
    font-size: 0.8rem;
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(255, 59, 48, 0.1));
    color: var(--primary-color);
    padding: 4px 10px;
    border-radius: 12px;
    border: 1px solid rgba(0, 113, 227, 0.2);
    font-weight: 500;
}

/* 里程碑检查部分 */
.milestone-check h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.milestone-check p {
    font-size: 0.95rem;
    color: var(--light-text);
    background: rgba(48, 209, 88, 0.1);
    padding: 12px;
    border-radius: 8px;
    border-left: 3px solid var(--success-color);
    margin: 0;
}

/* 展开按钮 */
.expand-btn {
    width: 100%;
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 12px 20px;
    border-radius: var(--button-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.expand-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.expand-btn.expanded {
    background: var(--primary-color);
    color: white;
}

.expand-btn.expanded i {
    transform: rotate(180deg);
}

.expand-btn i {
    transition: transform 0.3s ease;
}

/* 学习路线总结 */
.roadmap-summary {
    text-align: center;
    margin-top: 80px;
    padding: 40px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
}

.summary-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--light-text);
    margin-top: 5px;
}

.stat-divider {
    font-size: 1.5rem;
    color: var(--light-text);
}

.learning-promise {
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
}

.learning-promise p {
    font-size: 1rem;
    line-height: 1.6;
    margin: 15px 0;
    color: var(--light-text);
}

.learning-promise strong {
    color: var(--text-color);
}

/* ================================
   响应式设计
   ================================ */

/* 平板设备 */
@media (max-width: 768px) {
    .roadmap-timeline::before {
        left: 30px;
        width: 3px;
    }
    
    .roadmap-step {
        flex-direction: column !important;
        align-items: flex-start;
        margin: 40px 0;
    }
    
    .step-right,
    .step-left {
        flex-direction: column !important;
    }
    
    .step-marker {
        position: absolute;
        left: 0;
        top: 0;
        width: 60px;
        height: 60px;
    }
    
    .step-number {
        top: -10px;
        width: 24px;
        height: 24px;
        font-size: 12px;
    }
    
    .step-icon {
        width: 50px;
        height: 50px;
        border-width: 3px;
    }
    
    .step-icon i {
        font-size: 1.4rem;
    }
    
    .step-progress {
        width: 60px;
        height: 60px;
    }
    
    .step-card {
        margin-left: 80px !important;
        margin-right: 0 !important;
        max-width: none;
        padding: 20px;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .card-header h3 {
        font-size: 1.2rem;
    }
    
    .summary-stats {
        gap: 15px;
    }
    
    .stat-number {
        font-size: 1.6rem;
    }
    
    .stat-divider {
        display: none;
    }
}

/* 手机设备 */
@media (max-width: 480px) {
    .roadmap-timeline {
        padding: 20px 0;
    }
    
    .step-card {
        margin-left: 60px !important;
        padding: 15px;
    }
    
    .card-header h3 {
        font-size: 1.1rem;
    }
    
    .card-duration {
        font-size: 0.75rem;
        padding: 3px 8px;
    }
    
    .card-summary p {
        font-size: 1rem;
    }
    
    .learning-objectives li {
        font-size: 0.9rem;
    }
    
    .resource-tags {
        gap: 6px;
    }
    
    .resource-tag {
        font-size: 0.75rem;
        padding: 3px 8px;
    }
    
    .expand-btn {
        padding: 10px 16px;
        font-size: 0.9rem;
    }
    
    .roadmap-summary {
        margin-top: 60px;
        padding: 30px 20px;
    }
    
    .summary-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .learning-promise {
        text-align: center;
    }
}

/* ================================
   学习路线缺失样式补充
   ================================ */

/* Step Tags */
.step-tag {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--step-color-1), var(--step-color-2));
    color: white;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Standard Labels */
.standard-label {
    display: inline-block;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-color);
    margin-bottom: 8px;
    padding: 2px 0;
    border-bottom: 2px solid;
    border-image: linear-gradient(135deg, var(--step-color-1), var(--step-color-2)) 1;
}

.step-standard {
    margin-bottom: 20px;
}

.step-standard p {
    font-size: 0.9rem;
    line-height: 1.6;
    color: #4a5568;
    margin-bottom: 0;
}

/* Learning Tips Section */
.learning-tips {
    margin-top: 80px;
    padding: 60px 0;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 24px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.tips-header {
    text-align: center;
    margin-bottom: 50px;
}

.tips-header h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 10px;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.tip-item {
    text-align: center;
    padding: 30px 20px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.tip-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.tip-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    display: block;
}

.tip-item h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 15px;
}

.tip-item p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #6b7280;
    margin-bottom: 0;
}

/* Roadmap CTA Section */
.roadmap-cta {
    margin-top: 80px;
    text-align: center;
    padding: 60px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.roadmap-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 20%, rgba(79, 70, 229, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(255, 59, 48, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

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

.cta-content h3 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-color);
    margin-bottom: 15px;
    background: linear-gradient(135deg, #0071e3 0%, #ff3b30 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-content p {
    font-size: 1.1rem;
    color: #6b7280;
    margin-bottom: 40px;
    font-weight: 500;
}

.roadmap-cta-btn {
    padding: 20px 40px;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 113, 227, 0.3);
    transition: all 0.3s ease;
}

.roadmap-cta-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 113, 227, 0.4);
}

/* Assign step colors */
.roadmap-step:nth-child(1) { --step-color-1: #4f46e5; --step-color-2: #818cf8; }
.roadmap-step:nth-child(2) { --step-color-1: #3b82f6; --step-color-2: #60a5fa; }
.roadmap-step:nth-child(3) { --step-color-1: #f59e0b; --step-color-2: #fbbf24; }
.roadmap-step:nth-child(4) { --step-color-1: #f97316; --step-color-2: #fb923c; }
.roadmap-step:nth-child(5) { --step-color-1: #10b981; --step-color-2: #34d399; }
.roadmap-step:nth-child(6) { --step-color-1: #06b6d4; --step-color-2: #22d3ee; }
.roadmap-step:nth-child(7) { --step-color-1: #ff3b30; --step-color-2: #ff6b35; }

/* 手机端响应式补充 */
@media (max-width: 480px) {
    .learning-tips {
        margin-top: 60px;
        padding: 40px 20px;
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .roadmap-cta {
        margin-top: 60px;
        padding: 40px 20px;
    }
    
    .cta-content h3 {
        font-size: 1.8rem;
    }
    
    .roadmap-cta-btn {
        padding: 16px 32px;
        font-size: 1.1rem;
    }
}

/* ================================
   Future Plans Section
   ================================ */
.future-plans-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.future-plans-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0, 113, 227, 0.05) 0%, transparent 70%);
    animation: float 20s infinite ease-in-out;
}

/* 后续规划标题样式 - 简洁版 */
.future-plans-section .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.future-plans-title {
    font-size: 48px;
    font-weight: 700;
    color: #333;
    margin: 0 0 30px 0;
    display: inline-block;
    position: relative;
}

.title-icon {
    font-size: 48px;
    margin-right: 15px;
    display: inline-block;
    vertical-align: middle;
}

.title-text {
    display: inline-block;
    vertical-align: middle;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.title-text::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .future-plans-title {
        font-size: 36px;
    }
    
    .title-icon {
        font-size: 36px;
        margin-right: 10px;
    }
}

/* 升级横幅样式 */
.upgrade-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 30px 40px;
    margin: 30px auto;
    max-width: 800px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.25);
}

.upgrade-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.upgrade-content {
    display: flex;
    align-items: center;
    gap: 30px;
    position: relative;
    z-index: 1;
}

.upgrade-icon-wrapper {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    flex-shrink: 0;
}

.upgrade-icon-wrapper i {
    font-size: 40px;
    color: white;
    animation: bounce-up 2s infinite;
}

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

.upgrade-text h3 {
    color: white;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.upgrade-text p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    margin: 0;
}

.upgrade-decoration {
    position: absolute;
    top: 20px;
    right: 30px;
    display: flex;
    gap: 8px;
}

.upgrade-decoration .dot {
    width: 8px;
    height: 8px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.upgrade-decoration .dot:nth-child(2) {
    animation-delay: 0.3s;
}

.upgrade-decoration .dot:nth-child(3) {
    animation-delay: 0.6s;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

/* 免责声明样式 */
.disclaimer-notice {
    background: linear-gradient(135deg, #fff5f5 0%, #ffe9e9 100%);
    border-left: 4px solid #ff6b6b;
    border-radius: 12px;
    padding: 20px 25px;
    margin: 30px auto 0;
    max-width: 700px;
    display: flex;
    align-items: center;
    gap: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(255, 107, 107, 0.1);
    transition: all 0.3s ease;
}

.disclaimer-notice:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.15);
}

.disclaimer-notice::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(30%, -30%);
}

.notice-icon {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 3px 10px rgba(255, 107, 107, 0.2);
}

.notice-icon i {
    font-size: 24px;
    color: #ff6b6b;
    animation: shake 2s infinite;
}

@keyframes shake {
    0%, 100% {
        transform: rotate(0deg);
    }
    25% {
        transform: rotate(-5deg);
    }
    75% {
        transform: rotate(5deg);
    }
}

.notice-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.notice-title {
    font-size: 14px;
    font-weight: 600;
    color: #ff6b6b;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.notice-text {
    font-size: 16px;
    color: #666;
    line-height: 1.5;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .upgrade-banner {
        padding: 25px 20px;
    }
    
    .upgrade-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .upgrade-text h3 {
        font-size: 22px;
    }
    
    .upgrade-text p {
        font-size: 16px;
    }
    
    .upgrade-decoration {
        top: 15px;
        right: 15px;
    }
    
    .disclaimer-notice {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }
    
    .notice-content {
        align-items: center;
    }
}

.plans-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 60px;
    position: relative;
    z-index: 1;
}

.plan-card {
    background: white;
    border-radius: 20px;
    padding: 0;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 400px;
}

.plan-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.plan-card:hover::before {
    transform: scaleX(1);
}

.plan-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.plan-header {
    padding: 30px 30px 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 20px;
}

.plan-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(0, 113, 227, 0.2);
}

.plan-icon i {
    font-size: 28px;
    color: white;
}

.plan-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-color);
    margin: 0;
}

.plan-content {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

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

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

.plan-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.plan-section h4 i {
    color: var(--primary-color);
    font-size: 20px;
}

.plan-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.plan-section ul li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    color: #666;
    line-height: 1.6;
    font-size: 0.95rem;
}

.plan-section ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--success-color);
    font-weight: bold;
    font-size: 16px;
}

.plan-section ul li strong {
    color: var(--text-color);
    font-weight: 600;
}

/* Responsive Design for Future Plans */
@media (max-width: 992px) {
    .plans-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .plans-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .plan-card {
        margin-bottom: 20px;
    }
    
    .plan-header {
        padding: 25px 20px 15px;
    }
    
    .plan-content {
        padding: 20px;
    }
}

/* Animation for floating effect */
@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -30px) rotate(120deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(240deg);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ================================
   Course Section Divider Styles
   米醋电子工作室 - 课程规划分隔线样式
   ================================ */
.course-section-divider {
    margin: 80px 0;
    padding: 40px 0;
    position: relative;
    overflow: visible;
}

.divider-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    position: relative;
}

.divider-decoration {
    display: flex;
    align-items: center;
    flex: 1;
    max-width: 200px;
}

.divider-decoration.left {
    justify-content: flex-end;
}

.divider-decoration.right {
    justify-content: flex-start;
}

.decoration-line {
    height: 2px;
    width: 100px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        #0071e3 50%, 
        #ff3b30 100%);
    position: relative;
    animation: lineGlow 3s ease-in-out infinite;
}

.divider-decoration.left .decoration-line {
    background: linear-gradient(90deg, 
        #ff3b30 0%, 
        #0071e3 50%, 
        transparent 100%);
}

@keyframes lineGlow {
    0%, 100% {
        opacity: 0.6;
        transform: scaleX(0.8);
    }
    50% {
        opacity: 1;
        transform: scaleX(1);
    }
}

.decoration-dot {
    width: 12px;
    height: 12px;
    background: linear-gradient(135deg, #0071e3, #ff3b30);
    border-radius: 50%;
    margin: 0 10px;
    position: relative;
    animation: dotPulse2 2s ease-in-out infinite;
}

@keyframes dotPulse2 {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.4);
    }
    50% {
        transform: scale(1.2);
        box-shadow: 0 0 20px 5px rgba(255, 107, 53, 0.2);
    }
}

.divider-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.divider-badge {
    display: inline-block;
    margin-bottom: 15px;
    animation: badgeFloat 3s ease-in-out infinite;
}

@keyframes badgeFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.badge-text {
    background: linear-gradient(135deg, #ff6b35 0%, #f94892 100%);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.divider-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 20px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    position: relative;
}

.title-text {
    background: linear-gradient(135deg, #0071e3 0%, #ff3b30 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    animation: titleGlow 3s ease-in-out infinite;
}

@keyframes titleGlow {
    0%, 100% {
        filter: brightness(1);
    }
    50% {
        filter: brightness(1.2);
    }
}

.title-icon {
    font-size: 1.8rem;
    animation: iconSpin 4s linear infinite;
}

.title-icon.left {
    animation-direction: normal;
}

.title-icon.right {
    animation-direction: reverse;
}

@keyframes iconSpin {
    0% {
        transform: rotate(0deg) scale(1);
    }
    25% {
        transform: rotate(90deg) scale(1.1);
    }
    50% {
        transform: rotate(180deg) scale(1);
    }
    75% {
        transform: rotate(270deg) scale(1.1);
    }
    100% {
        transform: rotate(360deg) scale(1);
    }
}

.divider-subtitle {
    color: #666;
    font-size: 1.2rem;
    margin-bottom: 25px;
    font-weight: 400;
    letter-spacing: 0.5px;
}

.divider-features {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border: 2px solid;
    border-image: linear-gradient(135deg, #0071e3, #ff3b30) 1;
    border-radius: 25px;
    font-size: 0.95rem;
    color: #333;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 107, 53, 0.1), transparent);
    transition: left 0.5s ease;
}

.feature-tag:hover::before {
    left: 100%;
}

.feature-tag:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.2);
}

.feature-tag i {
    color: #0071e3;
    font-size: 1.1rem;
}

/* Responsive Design for Course Divider */
@media (max-width: 768px) {
    .course-section-divider {
        margin: 60px 0;
        padding: 30px 0;
    }
    
    .divider-container {
        flex-direction: column;
        gap: 20px;
    }
    
    .divider-decoration {
        max-width: none;
        width: 100%;
        justify-content: center !important;
    }
    
    .decoration-line {
        width: 60px;
    }
    
    .divider-title {
        font-size: 1.8rem;
        flex-direction: column;
        gap: 10px;
    }
    
    .title-icon {
        font-size: 1.4rem;
    }
    
    .divider-subtitle {
        font-size: 1rem;
        padding: 0 20px;
    }
    
    .divider-features {
        padding: 0 20px;
    }
    
    .feature-tag {
        font-size: 0.85rem;
        padding: 6px 12px;
    }
}


/* ================================
   课程详情模态弹窗样式
   米醋电子工作室 - 课程弹窗
   ================================ */
.curriculum-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    animation: modalFadeIn 0.3s ease-out;
}

.curriculum-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    cursor: pointer;
}

.modal-container {
    position: relative;
    background: white;
    border-radius: 20px;
    width: 90%;
    max-width: 900px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 100px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-header {
    padding: 25px 30px;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 20px 20px 0 0;
}

.modal-header-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

.modal-title {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #0071e3 0%, #ff3b30 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.modal-badge {
    background: linear-gradient(135deg, #ff6b35 0%, #f94892 100%);
    color: white;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.modal-close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: #666;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.modal-close-btn:hover {
    background: #f0f0f0;
    color: #ff3b30;
    transform: rotate(90deg);
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
}

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

.modal-features h4 {
    color: #0071e3;
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.modal-features ul {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
}

.modal-features li {
    padding: 12px 15px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-left: 3px solid #0071e3;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.modal-features li:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 113, 227, 0.1);
}

.modal-features strong {
    color: #333;
    font-weight: 600;
}

.modal-curriculum-content {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
}

.modal-curriculum-content h4 {
    color: #0071e3;
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.modal-curriculum-content ol {
    padding-left: 20px;
    color: #555;
    line-height: 2;
}

.modal-curriculum-content li {
    margin-bottom: 10px;
    transition: all 0.3s ease;
    padding: 5px 10px;
    border-radius: 5px;
}

.modal-curriculum-content li:hover {
    background: white;
    padding-left: 15px;
    color: #0071e3;
}

.curriculum-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.curriculum-table th {
    background: #0071e3;
    color: white;
    padding: 12px;
    text-align: left;
    font-weight: 600;
}

.curriculum-table td {
    padding: 12px;
    border: 1px solid #dee2e6;
    color: #555;
}

.curriculum-table tr:nth-child(even) {
    background: white;
}

.curriculum-table tr:hover {
    background: #f0f8ff;
}

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

.curriculum-section h5 {
    color: #0071e3;
    font-size: 1.1rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.curriculum-section ul {
    list-style: none;
    padding-left: 20px;
}

.curriculum-section li {
    color: #666;
    line-height: 1.8;
    padding: 5px 0;
    position: relative;
}

.curriculum-section li::before {
    content: '•';
    position: absolute;
    left: -15px;
    color: #0071e3;
}

.modal-footer {
    padding: 20px 30px;
    border-top: 1px solid #e9ecef;
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    background: #f8f9fa;
    border-radius: 0 0 20px 20px;
}

.modal-action-btn {
    padding: 10px 25px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-action-btn.primary {
    background: linear-gradient(135deg, #0071e3 0%, #ff3b30 100%);
    color: white;
}

.modal-action-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 113, 227, 0.3);
}

.modal-action-btn.secondary {
    background: white;
    color: #666;
    border: 1px solid #dee2e6;
}

.modal-action-btn.secondary:hover {
    background: #f8f9fa;
    color: #333;
}

/* 查看课程按钮样式 */
.view-curriculum-btn {
    background: linear-gradient(135deg, #0071e3 0%, #0056b3 100%);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

.view-curriculum-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 113, 227, 0.3);
    background: linear-gradient(135deg, #0056b3 0%, #0071e3 100%);
}

.view-curriculum-btn i {
    font-size: 1.2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .modal-container {
        width: 95%;
        max-height: 90vh;
        margin: 20px;
    }
    
    .modal-header {
        padding: 20px;
    }
    
    .modal-title {
        font-size: 1.4rem;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    .modal-features ul {
        grid-template-columns: 1fr;
    }
    
    .modal-footer {
        flex-direction: column;
        gap: 10px;
    }
    
    .modal-action-btn {
        width: 100%;
        justify-content: center;
    }
}

/* ================================
   简化的课程分隔栏样式
   ================================ */
.course-divider-section {
    padding: 60px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 50%, #ffffff 100%);
}

.course-section-divider .divider-title {
    margin: 30px 0 20px;
}

/* 移除badge相关的间距调整 */
.course-section-divider .divider-content {
    padding-top: 0;
}


/* ================================
   新增课程内容区域样式优化
   ================================ */
.new-courses-section {
    padding: 60px 0;
    background: #ffffff;
}

.new-courses-section .plans-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 确保所有课程卡片使用统一的样式 */
.new-courses-section .plan-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.new-courses-section .plan-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.new-courses-section .course-action {
    margin-top: auto !important;
    padding-top: 20px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .new-courses-section .plans-container {
        grid-template-columns: 1fr;
        padding: 0 20px;
    }
}

/* ================================
   Join Us Section - 招聘板块（简洁版）
   ================================ */
.join-us-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 100%);
    position: relative;
}

.join-content {
    max-width: 900px;
    margin: 0 auto;
}

.join-card {
    background: white;
    border-radius: 30px;
    padding: 80px 60px;
    position: relative;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.card-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0.05;
}

.card-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.join-title {
    font-size: 42px;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
}

.title-line {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
    position: relative;
}

.title-line::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.join-description {
    margin-bottom: 40px;
}

.main-text {
    font-size: 24px;
    line-height: 2.2;
    color: #555;
    margin: 0;
    font-weight: 400;
}

.highlight-text {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    margin-top: 15px;
}

.join-target {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border-radius: 20px;
    padding: 25px 30px;
    margin-bottom: 40px;
}

.target-text {
    font-size: 18px;
    color: #666;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-weight: 400;
}

.target-text i {
    font-size: 26px;
    color: #667eea;
}

.join-action {
    margin-bottom: 30px;
}

.join-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 18px;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.3);
}

.join-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 50px rgba(102, 126, 234, 0.4);
}

.join-btn i {
    font-size: 24px;
    transition: transform 0.3s ease;
}

.join-btn:hover i {
    transform: translateX(5px);
}

.join-footer {
    margin-top: 20px;
}

.join-footer p {
    font-size: 14px;
    color: #999;
    margin: 0;
    font-style: italic;
}

/* 装饰元素 */
.decoration-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.circle-1 {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    top: -60px;
    right: -60px;
    animation: float 15s infinite ease-in-out;
}

.circle-2 {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ff8787 100%);
    bottom: -40px;
    left: -40px;
    animation: float 20s infinite ease-in-out reverse;
}

.circle-3 {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    top: 50%;
    left: -30px;
    animation: float 25s infinite ease-in-out;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .join-card {
        padding: 50px 30px;
    }
    
    .join-title {
        font-size: 32px;
    }
    
    .main-text {
        font-size: 18px;
        line-height: 2;
    }
    
    .highlight-text {
        font-size: 22px;
    }
    
    .target-text {
        font-size: 16px;
        flex-direction: column;
        text-align: center;
    }
    
    .join-btn {
        padding: 15px 35px;
        font-size: 16px;
    }
}