/* ==================== */
/* 全局样式与重置 */
/* ==================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 配色方案 */
    --color-primary: #1c524b;
    --color-primary-dark: #0f2c28;
    --color-accent: #d4af37;
    --color-light: #f4f7f6;
    --color-text: #334155;
    --color-text-light: #64748b;
    --color-white: #ffffff;
    --color-bg: #fafafa;

    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #0f2c28 0%, #1c524b 100%);
    --gradient-accent: linear-gradient(135deg, #d4af37 0%, #f4d03f 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(15, 44, 40, 0.95) 0%, rgba(28, 82, 75, 0.9) 100%);

    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 20px rgba(212, 175, 55, 0.3);

    /* 动画时长 */
    --transition-fast: 0.2s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;

    /* 边距 */
    --border-radius: 8px;
    --border-radius-lg: 16px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-normal) ease;
}

/* ==================== */
/* 导航栏 */
/* ==================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-normal) ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

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

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 2px;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--color-accent);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: all var(--transition-normal) ease;
    transform: translateX(-50%);
}

.nav-link:hover::before {
    width: 80%;
}

.nav-link:hover {
    color: var(--color-primary);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 3px;
    transition: all var(--transition-normal) ease;
}

/* ==================== */
/* Hero 区域 */
/* ==================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    z-index: -1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
}

.floating-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.particle {
    position: absolute;
    background: var(--color-accent);
    border-radius: 50%;
    opacity: 0.2;
    animation: float 20s infinite;
}

.particle:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    width: 60px;
    height: 60px;
    top: 60%;
    left: 80%;
    animation-delay: 4s;
}

.particle:nth-child(3) {
    width: 40px;
    height: 40px;
    top: 40%;
    left: 60%;
    animation-delay: 2s;
}

.particle:nth-child(4) {
    width: 100px;
    height: 100px;
    top: 80%;
    left: 20%;
    animation-delay: 6s;
}

.particle:nth-child(5) {
    width: 50px;
    height: 50px;
    top: 30%;
    left: 85%;
    animation-delay: 8s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-50px) rotate(180deg);
    }
}

.hero-content {
    text-align: center;
    color: var(--color-white);
    z-index: 1;
    max-width: 900px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.title-main {
    font-size: 3.5rem;
    letter-spacing: 8px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.title-divider {
    width: 100px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 3px;
}

.title-sub {
    font-size: 1.8rem;
    letter-spacing: 4px;
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
    letter-spacing: 2px;
}

.hero-slogan {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
    letter-spacing: 3px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--color-white);
    border-radius: 20px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--color-white);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes scroll {
    0% {
        opacity: 1;
        top: 8px;
    }
    100% {
        opacity: 0;
        top: 20px;
    }
}

/* ==================== */
/* 按钮样式 */
/* ==================== */

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal) ease;
    border: 2px solid transparent;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

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

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

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
}

/* ==================== */
/* 区块通用样式 */
/* ==================== */

.section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 3px;
}

.section-subtitle {
    font-size: 1.5rem;
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 2px;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.title-underline {
    width: 80px;
    height: 4px;
    background: var(--gradient-accent);
    margin: 0 auto;
    border-radius: 2px;
}

/* ==================== */
/* 关于我们 */
/* ==================== */

.about {
    background: var(--color-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.about-text {
    animation: fadeInLeft 1s ease;
}

.about-subtitle {
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.about-tagline {
    font-size: 1.3rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.keyword-highlight {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 2px;
    position: relative;
    display: inline-block;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    padding: var(--spacing-md);
    background: var(--color-light);
    border-radius: var(--border-radius);
    transition: all var(--transition-normal) ease;
}

.feature-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

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

.feature-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--color-accent);
}

.feature-item h5 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 0.3rem;
}

.feature-item p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin: 0;
}

.about-founder {
    animation: fadeInRight 1s ease;
}

.founder-card {
    background: var(--gradient-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    color: var(--color-white);
    text-align: center;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.founder-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

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

.founder-badge {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--color-primary-dark);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.founder-name {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    letter-spacing: 4px;
    position: relative;
}

.founder-titles {
    position: relative;
}

.founder-titles p {
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.95;
}

/* ==================== */
/* 组织觉醒三引擎 */
/* ==================== */

.engines {
    background: var(--color-light);
}

.engines-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.engine-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-slow) ease;
    position: relative;
    overflow: hidden;
}

.engine-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow) ease;
}

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

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

.engine-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 4rem;
    font-weight: 700;
    color: rgba(28, 82, 75, 0.05);
    line-height: 1;
}

.engine-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.engine-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--color-accent);
}

.engine-title {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.engine-method {
    font-size: 1.2rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.engine-arrow {
    font-size: 2rem;
    color: var(--color-accent);
    margin: var(--spacing-sm) 0;
    font-weight: 300;
}

.engine-result {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.engine-desc {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ==================== */
/* 新思维 vs 传统咨询 */
/* ==================== */

.approach {
    background: var(--color-white);
}

.comparison-table {
    max-width: 900px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.comparison-header {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    background: var(--gradient-primary);
    color: var(--color-white);
    font-weight: 600;
    font-size: 1.1rem;
}

.comparison-header .comparison-col {
    padding: var(--spacing-md);
    text-align: center;
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 1px solid rgba(28, 82, 75, 0.1);
    transition: all var(--transition-normal) ease;
}

.comparison-row:hover {
    background: var(--color-light);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-col {
    padding: var(--spacing-md);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.comparison-col.module {
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(28, 82, 75, 0.05);
}

.comparison-col.traditional-content {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.comparison-col.new-thinking-content {
    color: var(--color-accent);
    font-weight: 600;
    font-size: 1.05rem;
    position: relative;
}

.comparison-col.new-thinking-content::before {
    content: '✦';
    position: absolute;
    left: 10px;
    color: var(--color-accent);
    font-size: 1.2rem;
}

/* ==================== */
/* 核心交付成果 */
/* ==================== */

.services {
    background: var(--color-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.service-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-slow) ease;
}

.service-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.service-icon-wrapper {
    margin-bottom: var(--spacing-md);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    transition: all var(--transition-normal) ease;
}

.service-card:hover .service-icon {
    transform: rotateY(360deg);
}

.service-icon svg {
    width: 35px;
    height: 35px;
    stroke: var(--color-accent);
}

.service-title {
    font-size: 1.5rem;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.service-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.service-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.service-bullet {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}

.service-item h5 {
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: 0.2rem;
    font-weight: 600;
}

.service-item p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin: 0;
}

/* ==================== */
/* 业务体系 */
/* ==================== */

.business {
    background: var(--color-white);
}

.business-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.business-stage {
    flex: 1;
    text-align: center;
}

.stage-badge {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--color-primary-dark);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.stage-card {
    background: var(--color-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-slow) ease;
    min-height: 250px;
}

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

.stage-card h4 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.stage-card p {
    font-size: 1rem;
    color: var(--color-text);
    line-height: 1.7;
}

.stage-card ul {
    list-style: none;
    text-align: left;
}

.stage-card ul li {
    padding: 0.5rem 0;
    color: var(--color-text);
    position: relative;
    padding-left: var(--spacing-md);
}

.stage-card ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

.flow-arrow {
    flex-shrink: 0;
}

.flow-arrow svg {
    width: 60px;
    height: 50px;
    stroke: var(--color-accent);
}

.additional-services {
    background: var(--color-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.additional-services h4 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.services-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.service-tag {
    background: var(--color-white);
    color: var(--color-primary);
    padding: 0.7rem 1.5rem;
    border-radius: 25px;
    font-size: 0.95rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal) ease;
    border: 2px solid transparent;
}

.service-tag:hover {
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ==================== */
/* 联系我们 */
/* ==================== */

.contact {
    background: var(--gradient-primary);
    color: var(--color-white);
}

.contact .section-title {
    color: var(--color-white);
}

.contact .section-desc {
    color: rgba(255, 255, 255, 0.9);
}

.contact .title-underline {
    background: var(--gradient-accent);
}

.contact-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal) ease;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 25px;
    height: 25px;
    stroke: var(--color-primary-dark);
}

.contact-text h5 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    color: var(--color-accent);
}

.contact-text p {
    font-size: 1rem;
    opacity: 0.95;
}

.contact-cta {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
}

.contact-cta h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    letter-spacing: 3px;
}

.cta-text {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
    font-weight: 600;
}

.contact-cta .btn {
    margin-top: var(--spacing-md);
}

/* ==================== */
/* 页脚 */
/* ==================== */

.footer {
    background: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.footer-info h4 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-accent);
}

.footer-info p {
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    color: var(--color-white);
    font-size: 0.95rem;
    opacity: 0.8;
    transition: all var(--transition-normal) ease;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* ==================== */
/* 动画效果 */
/* ==================== */

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.fade-in-up {
    animation: fadeInUp 1s ease;
}

.fade-in-up.delay-1 {
    animation-delay: 0.2s;
    animation-fill-mode: both;
}

.fade-in-up.delay-2 {
    animation-delay: 0.4s;
    animation-fill-mode: both;
}

.fade-in-up.delay-3 {
    animation-delay: 0.6s;
    animation-fill-mode: both;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(212, 175, 55, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(212, 175, 55, 0);
    }
}

.pulse {
    animation: pulse 2s infinite;
}

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

.pulse-slow {
    animation: pulseSlow 3s ease-in-out infinite;
}

.pulse-slow.delay-1 {
    animation-delay: 0.5s;
}

.pulse-slow.delay-2 {
    animation-delay: 1s;
}

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

@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

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

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

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

    .business-flow {
        flex-direction: column;
    }

    .flow-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal) ease;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .hero-title {
        font-size: 2rem;
    }

    .title-main {
        font-size: 2.5rem;
        letter-spacing: 4px;
    }

    .title-sub {
        font-size: 1.3rem;
        letter-spacing: 2px;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-slogan {
        font-size: 1.3rem;
    }

    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .section-title {
        font-size: 2rem;
    }

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

    .comparison-table {
        overflow-x: auto;
    }

    .comparison-header,
    .comparison-row {
        min-width: 600px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .section {
        padding: var(--spacing-lg) 0;
    }

    .title-main {
        font-size: 2rem;
        letter-spacing: 2px;
    }

    .title-sub {
        font-size: 1.1rem;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
}

/* ==================== */
/* 滚动动画 */
/* ==================== */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}