/* 主内容区域 */
.main-container {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
    display: flex;
    max-width: 1440px;
    margin-left: auto;
    margin-right: auto;
    padding: 60px 5%;
    gap: 80px;
}

/* 左栏样式 */
.left-column {
    flex: 0 0 55%;
    display: flex;
    flex-direction: column;
    gap: 50px;
}

/* 核心主张区 */
.hero-section {
    animation: fadeInUp 0.8s ease-out;
}

.main-title {
    font-size: clamp(28px, 5.5vw, 44px);
    font-weight: 700;
    color: var(--warm-primary); /* 从蓝色改为温暖金色 */
    font-family: 'Noto Serif SC', serif;
    line-height: 1.2;
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeInText 1s ease-out 0.3s forwards;
}

.subtitle {
    font-size: clamp(14px, 3.3vw, 18px);
    color: var(--gray-500);
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeInText 1s ease-out 0.6s forwards;
}

.divider-line {
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--gold-dark));
    border-radius: 2px;
    opacity: 0;
    animation: expandLine 1s ease-out 0.9s forwards;
}

/* 自定义功能区 */
.features-section {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1.2s forwards;
}

.section-title {
    font-size: 28px;
    color: var(--gray-900);
    margin-bottom: 25px;
    font-weight: 600;
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.feature-card {
    background: white;
    padding: 20px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--warm-orange));
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

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

.feature-card:hover::before {
    transform: translateX(0);
}

.feature-icon {
    width: 40px;   /* 固定大小 */
    height: 40px;  /* 固定大小 */
    margin-bottom: 12px;
    flex: none;
}

.feature-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 6px;
}

.feature-desc {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* 竞争力展示区 */
.advantages-section {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1.5s forwards;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.advantage-icon {
    width: 36px;  /* 固定大小 */
    height: 36px; /* 固定大小 */
    flex-shrink: 0;
}

.advantage-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 6px;
}

.advantage-content p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* 右栏样式 */
.right-column {
    flex: 0 0 40%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    min-height: 600px;
    gap: 20px;
}

/* 对话展示区 */
.chat-container {
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    width: 100%;
    max-width: 480px;
    height: 450px;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 10;
    margin-bottom: 30px;
}

.chat-header {
    background: linear-gradient(135deg, var(--warm-secondary), var(--warm-primary));
    color: white;
    padding: 16px 20px;
    font-size: 18px;
    font-weight: 600;
    text-align: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-nav-btn {
    background: none;
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.3s ease;
    opacity: 0.7;
}

.chat-nav-btn:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.1);
}

.chat-nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.chat-title {
    flex: 1;
    text-align: center;
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.message {
    display: flex;
    gap: 10px;
    opacity: 0;
    animation: fadeInMessage 0.6s ease-out forwards;
}

.message.user {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
}

.message-content {
    background: var(--gray-100);
    padding: 8px 12px;
    border-radius: 12px;
    max-width: 70%;
    font-size: 13px;
    line-height: 1.4;
}

.message.user .message-content {
    background: var(--warm-secondary);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.ai .message-content {
    background: var(--gray-100);
    color: var(--gray-900);
    border-bottom-left-radius: 4px;
}

.chat-input {
    padding: 12px 20px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    font-size: 12px;
}

/* 场景标签云 */
.scene-tags {
    position: relative;
    width: 100%;
    max-width: 480px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-start;
    margin-bottom: 20px;
}

.scene-tag {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    opacity: 0;
    animation: tagFadeIn 0.8s ease-out forwards;
    border: 2px solid transparent;
    flex: 0 0 calc(25% - 6px);
    text-align: center;
    min-width: 100px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.scene-tag:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.scene-tag.active {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* 情感类标签 - 暖橙色系 */
.tag-emotion {
    background: rgba(251, 146, 60, 0.15);
    color: #EA580C;
    border-color: rgba(251, 146, 60, 0.3);
}

.tag-emotion:hover,
.tag-emotion.active {
    background: rgba(251, 146, 60, 0.25);
    color: #DC2626;
    border-color: rgba(251, 146, 60, 0.5);
}

/* 家庭类标签 - 柔紫色系 */
.tag-family {
    background: rgba(167, 139, 250, 0.15);
    color: #7C3AED;
    border-color: rgba(167, 139, 250, 0.3);
}

.tag-family:hover,
.tag-family.active {
    background: rgba(167, 139, 250, 0.25);
    color: #6D28D9;
    border-color: rgba(167, 139, 250, 0.5);
}

/* 陪伴类标签 - 温暖粉色系 */
.tag-companion {
    background: rgba(244, 114, 182, 0.15);
    color: #DB2777;
    border-color: rgba(244, 114, 182, 0.3);
}

.tag-companion:hover,
.tag-companion.active {
    background: rgba(244, 114, 182, 0.25);
    color: #BE185D;
    border-color: rgba(244, 114, 182, 0.5);
}

/* 特殊类标签 - 深蓝色系 */
.tag-special {
    background: rgba(96, 165, 250, 0.15);
    color: #2563EB;
    border-color: rgba(96, 165, 250, 0.3);
}

.tag-special:hover,
.tag-special.active {
    background: rgba(96, 165, 250, 0.25);
    color: #1D4ED8;
    border-color: rgba(96, 165, 250, 0.5);
}

/* 传承类标签 - 金色系 */
.tag-heritage {
    background: rgba(245, 158, 11, 0.15);
    color: #D97706;
    border-color: rgba(245, 158, 11, 0.3);
}

.tag-heritage:hover,
.tag-heritage.active {
    background: rgba(245, 158, 11, 0.25);
    color: #B45309;
    border-color: rgba(245, 158, 11, 0.5);
}

/* 品牌理念区 */
.brand-philosophy {
    text-align: left;
    padding: 50px 32px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(248, 250, 252, 0.95));
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(30, 58, 138, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.1);
    position: relative;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1.8s forwards;
    margin-top: auto;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    min-height: 180px;
    display: flex;
    align-items: center;
    width: 100%;
    max-width: 480px;
}

.brand-philosophy::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--warm-orange), var(--secondary-blue));
    border-radius: 20px 20px 0 0;
}

.brand-philosophy::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.philosophy-text {
    font-size: 18px;
    color: var(--gray-800);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.8;
    position: relative;
    padding: 0;
    font-weight: 500;
    letter-spacing: 0.3px;
    margin: 0;
    z-index: 2;
}

.philosophy-text::before {
    content: '"';
    position: absolute;
    top: -8px;
    left: -16px;
    font-size: 48px;
    color: var(--secondary-blue);
    opacity: 0.2;
    font-family: Georgia, serif;
    line-height: 1;
    z-index: 1;
}

/* 强调关键词样式 */
.philosophy-highlight {
    color: var(--warm-primary);
    font-weight: 700;
    position: relative;
    background: linear-gradient(120deg, transparent 0%, rgba(59, 130, 246, 0.1) 50%, transparent 100%);
    padding: 2px 4px;
    border-radius: 4px;
}

.philosophy-highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 4px;
    right: 4px;
    height: 2px;
    background: linear-gradient(90deg, var(--gold), var(--warm-orange));
    border-radius: 1px;
    opacity: 0.8;
}

/* 行动号召区 */
.cta-section {
    background: linear-gradient(135deg, var(--warm-primary), var(--warm-secondary));
    color: white;
    text-align: center;
    padding: 80px 5%;
    margin-top: 60px;
}

.cta-title {
    font-size: 36px;
    margin-bottom: 12px;
    font-weight: 600;
}

.cta-subtitle {
    font-size: 20px;
    margin-bottom: 32px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 32px;
}

.trust-indicators {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    opacity: 0.8;
}

.trust-number {
    color: var(--warm-light);
    font-weight: 700;
}

.guarantees {
    display: flex;
    gap: 16px;
    align-items: center;
}

/* 动画定义 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes expandLine {
    from {
        opacity: 0;
        width: 0;
    }
    to {
        opacity: 1;
        width: 80px;
    }
}

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

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

@keyframes tagFadeIn {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

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

/* 响应式设计优化 */
@media (max-width: 1200px) {
    .main-container {
        flex-direction: column;
        gap: 40px;
        padding: 40px 5%;
    }
    
    .left-column {
        flex: none;
        width: 100%;
    }
    
    .right-column {
        flex: none;
        width: 100%;
        align-items: center;
    }
    
    .chat-container,
    .scene-tags,
    .brand-philosophy {
        max-width: 600px;
        width: 100%;
    }
    
    .scene-tag {
        flex: 0 0 calc(25% - 6px);
        min-width: 120px;
    }
}

@media (max-width: 768px) {
    .main-container {
        padding: 30px 4%;
        gap: 30px;
    }
    
    .main-title {
        font-size: 36px;
    }
    
    .subtitle {
        font-size: 18px;
    }
    
    .chat-container {
        height: 400px;
        max-width: 100%;
    }
    
    .scene-tags {
        max-width: 100%;
        gap: 6px;
    }
    
    .scene-tag {
        flex: 0 0 calc(50% - 3px);
        font-size: 12px;
        padding: 6px 12px;
        min-width: 80px;
    }
    
    .brand-philosophy {
        padding: 30px 20px;
        min-height: 140px;
        max-width: 100%;
    }
    
    .philosophy-text {
        font-size: 16px;
        line-height: 1.6;
    }
    
    .feature-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .main-container {
        padding: 20px 3%;
        gap: 25px;
    }
    
    .main-title {
        font-size: 28px;
    }
    
    .subtitle {
        font-size: 16px;
    }
    
    .chat-container {
        height: 350px;
    }
    
    .scene-tag {
        flex: 0 0 calc(50% - 3px);
        font-size: 11px;
        padding: 5px 10px;
        min-width: 70px;
    }
    
    .brand-philosophy {
        padding: 25px 16px;
        min-height: 120px;
    }
    
    .philosophy-text {
        font-size: 14px;
    }
    
    .cta-section {
        padding: 40px 20px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }
    
    .btn-large {
        width: 100%;
        max-width: 280px;
    }
}

/* 平板横屏优化 */
@media (min-width: 769px) and (max-width: 1024px) and (orientation: landscape) {
    .main-container {
        flex-direction: row;
        gap: 50px;
    }
    
    .left-column {
        flex: 0 0 60%;
    }
    
    .right-column {
        flex: 0 0 35%;
    }
    
    .scene-tag {
        flex: 0 0 calc(50% - 4px);
        min-width: 90px;
    }
}