/* 全局样式重置与优化 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 优化后的文艺清新配色方案 */
    --primary-color: #556B2F; /* 深橄榄绿 - 更有质感 */
    --primary-light: #6B8E23; /* 浅橄榄绿 - 视觉焦点 */
    --secondary-color: #8FBC8F; /* 深海绿 - 温柔雅致 */
    --accent-color: #DAA520; /* 金麒麟 - 点缀提亮 */
    --text-dark: #2F4F4F; /* 深岩灰 - 主要文字 */
    --text-medium: #5F6F6F; /* 中灰 - 次要文字 */
    --text-light: #8A9A9A; /* 浅灰 - 辅助文字 */
    --bg-white: #FFFFFF; /* 纯白 */
    --bg-off-white: #FAFAF8; /* 暖白 - 背景 */
    --bg-light: #F5F5DC; /* 米色 - 区块背景 */
    --border-color: #E8E8E8;
    --shadow-sm: 0 2px 8px rgba(47, 79, 79, 0.06);
    --shadow-md: 0 4px 16px rgba(47, 79, 79, 0.08);
    --shadow-lg: 0 8px 32px rgba(47, 79, 79, 0.12);
    --shadow-hover: 0 12px 40px rgba(47, 79, 79, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Noto Serif SC', 'Georgia', 'Times New Roman', serif;
    color: var(--text-dark);
    background-color: var(--bg-off-white);
    line-height: 1.8;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

/* 导航栏样式优化 */
.header {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    font-size: 22px;
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: none;
    font-family: 'Noto Serif SC', serif;
    letter-spacing: 0.5px;
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 36px;
}

.nav-menu a {
    color: var(--text-medium);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

/* 章节标题优化 */
.section-title {
    text-align: center;
    font-size: 36px;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 500;
    letter-spacing: 1px;
}

.section-subtitle {
    text-align: center;
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 48px;
    font-style: italic;
}

/* 首页 Hero 区域优化 */
.hero {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-off-white) 50%, #E8F5E9 100%);
    padding: 140px 0 120px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 52px;
    font-weight: 400;
    color: var(--text-dark);
    margin-bottom: 20px;
    letter-spacing: 2px;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 22px;
    color: var(--text-medium);
    margin-bottom: 16px;
    font-style: italic;
    font-weight: 300;
}

.hero-description {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 40px;
    text-decoration: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    border: 2px solid transparent;
    letter-spacing: 0.5px;
}

.cta-button.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: var(--shadow-md);
}

.cta-button.primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.cta-button.secondary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.cta-button.secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.hero-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.decoration-circle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-light));
    opacity: 0.1;
}

.decoration-circle:first-child {
    width: 400px;
    height: 400px;
    top: -100px;
    right: -100px;
}

.decoration-circle.small {
    width: 200px;
    height: 200px;
    bottom: 50px;
    left: -50px;
}

/* 特性服务区域 */
.features {
    padding: 100px 0;
    background-color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    text-align: center;
    padding: 48px 32px;
    background: linear-gradient(135deg, var(--bg-off-white), white);
    border-radius: 20px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 22px;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 500;
}

.feature-card p {
    color: var(--text-medium);
    line-height: 1.8;
    font-size: 15px;
}

/* 精选作品预览优化 */
.preview {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-off-white) 0%, white 100%);
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.preview-item {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.preview-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.preview-image {
    width: 100%;
    height: 280px;
    position: relative;
    transition: var(--transition);
}

.preview-item:hover .preview-image {
    transform: scale(1.05);
}

.preview-content {
    padding: 28px;
}

.preview-tag {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--bg-light), var(--bg-off-white));
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 12px;
}

.preview-content h3 {
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 10px;
    font-weight: 500;
}

.preview-content p {
    color: var(--text-medium);
    font-size: 14px;
    margin-bottom: 16px;
    line-height: 1.6;
}

.preview-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.preview-link:hover {
    color: var(--accent-color);
    gap: 10px;
}

.preview-cta {
    text-align: center;
    margin-top: 60px;
}

/* 数据统计区域 */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

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

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

.stat-number {
    font-size: 56px;
    font-weight: 600;
    margin-bottom: 12px;
    font-family: 'Georgia', serif;
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
}

/* 关于页面优化 */
.about-hero {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-off-white) 100%);
    padding: 120px 0;
    text-align: center;
    position: relative;
}

.about-hero h1 {
    font-size: 48px;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 400;
}

.hero-tags {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 32px;
    flex-wrap: wrap;
}

.tag {
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
    color: white;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
}

/* 关于我介绍区域 */
.about-intro {
    padding: 100px 0;
    background-color: white;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.intro-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    z-index: 1;
}

.profile-image {
    width: 100%;
    height: 500px;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-light));
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.image-decoration {
    position: absolute;
    top: 30px;
    right: -30px;
    z-index: 0;
}

.quote-mark {
    font-size: 200px;
    color: var(--primary-light);
    opacity: 0.3;
    font-family: 'Georgia', serif;
    line-height: 1;
}

.intro-text {
    padding: 20px;
}

.text-content p {
    color: var(--text-medium);
    margin-bottom: 20px;
    line-height: 1.9;
    font-size: 16px;
}

/* 设计理念优化 */
.philosophy {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-off-white) 0%, white 100%);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.philosophy-card {
    background: white;
    padding: 48px 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.philosophy-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--primary-light));
}

.philosophy-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.philosophy-number {
    font-size: 48px;
    font-weight: 600;
    color: var(--primary-light);
    opacity: 0.3;
    margin-bottom: 16px;
    font-family: 'Georgia', serif;
}

.philosophy-card h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 500;
}

.philosophy-card p {
    color: var(--text-medium);
    line-height: 1.8;
}

/* 技能区域优化 */
.skills {
    padding: 100px 0;
    background-color: white;
}

.skills-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
}

.skill-category h3 {
    font-size: 22px;
    color: var(--text-dark);
    margin-bottom: 32px;
    font-weight: 500;
    position: relative;
    padding-bottom: 12px;
}

.skill-category h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-name {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
    color: var(--text-dark);
    font-weight: 500;
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-light);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: 4px;
    transition: width 1s ease;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.tool-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px;
    background: var(--bg-off-white);
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
}

.tool-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.tool-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.tool-item span {
    font-size: 13px;
    color: var(--text-dark);
    font-weight: 500;
}

/* 时间轴优化 */
.timeline {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-off-white) 0%, white 100%);
}

.timeline-items {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.timeline-items::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
}

.timeline-item {
    display: flex;
    gap: 40px;
    margin-bottom: 48px;
    position: relative;
}

.timeline-marker {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-md);
}

.timeline-marker::before {
    content: '✓';
    color: white;
    font-weight: bold;
    font-size: 20px;
}

.timeline-content {
    flex: 1;
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.timeline-content:hover {
    box-shadow: var(--shadow-lg);
}

.timeline-date {
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-light);
    border-radius: 20px;
}

.timeline-content h3 {
    font-size: 22px;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 500;
}

.timeline-content p {
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: 16px;
}

.timeline-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.timeline-tags .tag {
    font-size: 12px;
    padding: 6px 14px;
}

/* 作品集页面优化 */
.portfolio-hero {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-off-white) 100%);
    padding: 120px 0;
    text-align: center;
}

.portfolio-hero h1 {
    font-size: 48px;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 400;
}

.portfolio-summary {
    display: flex;
    gap: 40px;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
}

.summary-item {
    font-size: 15px;
    color: var(--text-medium);
}

.summary-item strong {
    color: var(--primary-color);
    font-size: 24px;
    margin-left: 8px;
}

/* 筛选按钮优化 */
.portfolio-filter {
    padding: 48px 0;
    background-color: white;
    position: sticky;
    top: 72px;
    z-index: 99;
    box-shadow: var(--shadow-sm);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 28px;
    background-color: white;
    border: 2px solid var(--border-color);
    color: var(--text-medium);
    cursor: pointer;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    font-family: inherit;
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 作品网格优化 */
.portfolio-grid {
    padding: 80px 0;
    background-color: var(--bg-off-white);
}

.portfolio-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 32px;
}

.portfolio-item {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: block;
}

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

.portfolio-image-wrapper {
    position: relative;
    overflow: hidden;
}

.portfolio-image {
    width: 100%;
    height: 300px;
    position: relative;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.08);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(47, 79, 79, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .image-overlay {
    opacity: 1;
}

.view-project {
    color: white;
    font-size: 16px;
    font-weight: 500;
    padding: 12px 28px;
    border: 2px solid white;
    border-radius: 30px;
    background: transparent;
}

.portfolio-category {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(255, 255, 255, 0.95);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.portfolio-info {
    padding: 28px;
}

.portfolio-info h3 {
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 500;
}

.portfolio-desc {
    color: var(--text-medium);
    font-size: 14px;
    margin-bottom: 16px;
    line-height: 1.7;
}

.portfolio-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.meta-item {
    font-size: 12px;
    color: var(--text-light);
    padding: 4px 12px;
    background: var(--bg-light);
    border-radius: 12px;
}

/* 分页按钮 */
.portfolio-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 60px;
}

.pagination-btn {
    padding: 12px 24px;
    background: white;
    border: 2px solid var(--border-color);
    color: var(--text-medium);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    font-size: 14px;
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-numbers {
    display: flex;
    gap: 8px;
}

.page-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
    color: var(--text-medium);
}

.page-number:hover {
    background: var(--bg-light);
}

.page-number.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

/* 流程区域 */
.process-section {
    padding: 100px 0;
    background-color: white;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    margin-top: 60px;
}

.process-step {
    text-align: center;
    padding: 32px 20px;
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 56px;
    right: -12px;
    width: 24px;
    height: 2px;
    background: var(--border-color);
}

.step-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 600;
    margin: 0 auto 20px;
    box-shadow: var(--shadow-md);
}

.process-step h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 500;
}

.process-step p {
    color: var(--text-medium);
    font-size: 14px;
    line-height: 1.6;
}

/* 联系页面优化 */
.contact-hero {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-off-white) 100%);
    padding: 120px 0;
    text-align: center;
}

.contact-hero h1 {
    font-size: 48px;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 400;
}

.hero-description {
    color: var(--text-medium);
    font-size: 16px;
    margin-top: 16px;
}

/* 联系内容区域 */
.contact-content {
    padding: 100px 0;
    background-color: white;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 80px;
}

.info-header h2 {
    font-size: 32px;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 400;
}

.info-header p {
    color: var(--text-light);
    font-size: 15px;
    margin-bottom: 40px;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background: var(--bg-off-white);
    border-radius: 12px;
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 6px;
    font-weight: 500;
}

.contact-details p {
    color: var(--text-medium);
    font-size: 14px;
}

.contact-details a {
    color: var(--text-medium);
    text-decoration: none;
    transition: var(--transition);
}

.contact-details a:hover {
    color: var(--primary-color);
}

/* 社交链接 */
.social-links {
    margin-top: 48px;
}

.social-links h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 20px;
    font-weight: 500;
}

.social-icons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 30px;
    color: var(--text-medium);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.social-icon:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* 联系表单优化 */
.contact-form-section {
    background: var(--bg-off-white);
    padding: 48px;
    border-radius: 20px;
}

.form-header h2 {
    font-size: 28px;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 400;
}

.form-header p {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 32px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-size: 14px;
    font-weight: 500;
}

.required {
    color: var(--accent-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-family: inherit;
    font-size: 15px;
    transition: var(--transition);
    background: white;
    color: var(--text-dark);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(107, 142, 35, 0.1);
}

.form-group select {
    cursor: pointer;
}

.form-group textarea {
    resize: vertical;
    min-height: 160px;
    line-height: 1.6;
}

.form-privacy {
    margin-top: 8px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-medium);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-label a {
    color: var(--primary-color);
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

.submit-btn {
    padding: 16px 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* 合作领域优化 */
.collaboration {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-off-white) 0%, white 100%);
}

.collaboration-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.collaboration-item {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.collaboration-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.collaboration-icon {
    font-size: 42px;
    margin-bottom: 20px;
}

.collaboration-item h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 500;
}

.collaboration-item > p {
    color: var(--text-medium);
    margin-bottom: 24px;
    line-height: 1.7;
}

.collaboration-list {
    list-style: none;
}

.collaboration-list li {
    padding: 8px 0;
    color: var(--text-medium);
    font-size: 14px;
    padding-left: 20px;
    position: relative;
}

.collaboration-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* FAQ区域 */
.faq-section {
    padding: 100px 0;
    background-color: white;
}

.faq-items {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg-off-white);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.faq-item summary {
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-dark);
    font-size: 16px;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 24px;
    color: var(--primary-color);
    font-weight: 300;
}

.faq-item[open] summary::after {
    content: '−';
}

.faq-item[open] summary {
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
    color: white;
}

.faq-item p {
    padding: 0 24px 24px;
    color: var(--text-medium);
    line-height: 1.8;
    font-size: 15px;
}

/* CTA区域 */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    text-align: center;
    color: white;
}

.cta-section h2 {
    font-size: 36px;
    margin-bottom: 16px;
    font-weight: 400;
}

.cta-section p {
    font-size: 18px;
    margin-bottom: 32px;
    opacity: 0.95;
}

.cta-section .cta-button {
    background: white;
    color: var(--primary-color);
}

/* 页脚优化 */
.footer {
    background: linear-gradient(135deg, #1a2f1a, #2F4F4F);
    color: rgba(255, 255, 255, 0.9);
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 48px;
}

.footer-brand h3 {
    font-size: 24px;
    margin-bottom: 16px;
    font-weight: 500;
}

.footer-brand p {
    font-size: 14px;
    opacity: 0.85;
    line-height: 1.8;
}

.footer-links h4 {
    font-size: 16px;
    margin-bottom: 20px;
    font-weight: 500;
    opacity: 1;
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-contact h4 {
    font-size: 16px;
    margin-bottom: 20px;
    font-weight: 500;
    opacity: 1;
}

.footer-contact p {
    font-size: 14px;
    margin-bottom: 12px;
    opacity: 0.85;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: var(--transition);
}

.footer-contact a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 13px;
    opacity: 0.75;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    margin: 0 8px;
    transition: var(--transition);
}

.footer-bottom a:hover {
    color: white;
}

/* 响应式设计优化 */
@media (max-width: 1024px) {
    .skills-container {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .process-step:nth-child(3)::after {
        display: none;
    }
    
    .collaboration-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: 16px;
        padding: 16px 0;
    }

    .nav-menu {
        gap: 24px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding: 100px 0 80px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .intro-grid,
    .contact-grid,
    .philosophy-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .image-decoration {
        display: none;
    }

    .timeline-items::before {
        left: 15px;
    }

    .timeline-marker {
        width: 32px;
        height: 32px;
    }

    .timeline-item {
        gap: 24px;
    }

    .timeline-marker::before {
        font-size: 14px;
    }

    .portfolio-items {
        grid-template-columns: 1fr;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .process-step:not(:last-child)::after {
        display: none;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero h1 {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .features-grid,
    .preview-grid,
    .tools-grid {
        grid-template-columns: 1fr;
    }

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

    .portfolio-summary {
        flex-direction: column;
        gap: 16px;
    }

    .filter-buttons {
        gap: 8px;
    }

    .filter-btn {
        padding: 10px 20px;
        font-size: 13px;
    }

    .contact-form-section {
        padding: 32px 20px;
    }
}