/* 灵韵广告设计工作室 - 主样式表 */

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --dark-bg: #0f172a;
    --dark-text: #1e293b;
    --light-text: #f8fafc;
    --gray-text: #64748b;
    --border-color: #e2e8f0;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: #ffffff;
    overflow-x: hidden;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-text);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

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

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

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark-text);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 英雄区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 200% 200%;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 100px); }
}

/* 背景装饰形状 */
.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

.shape-4 {
    width: 250px;
    height: 250px;
    top: 30%;
    right: 30%;
    animation-delay: 6s;
}

.shape-5 {
    width: 180px;
    height: 180px;
    bottom: 10%;
    right: 20%;
    animation-delay: 8s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(50px, -50px) rotate(90deg);
    }
    50% {
        transform: translate(-30px, 30px) rotate(180deg);
    }
    75% {
        transform: translate(30px, 50px) rotate(270deg);
    }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    text-align: center;
    color: white;
    position: relative;
    z-index: 1;
}

/* 徽章 */
.hero-badge {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    animation: fadeInDown 1s ease 0.2s both;
    flex-wrap: wrap;
}

.hero-badge span {
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

.hero-badge span:nth-child(2) {
    animation-delay: 0.5s;
}

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

/* 标题 */
.hero-title {
    font-size: 4.5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    animation: fadeInUp 1s ease 0.4s both;
}

.title-line {
    display: block;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.3);
    letter-spacing: 2px;
}

.title-line.highlight {
    background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    animation: shimmer 3s ease-in-out infinite;
}

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

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    opacity: 0.95;
    font-weight: 600;
    letter-spacing: 3px;
    animation: fadeInUp 1s ease 0.6s both;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    animation: fadeInUp 1s ease 0.8s both;
}

/* 统计数据 */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin: 2rem auto 0;
    max-width: 800px;
    animation: fadeInUp 1s ease 1s both;
}

.stat-box {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.stat-box:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.25);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-text {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 500;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.8s both;
    margin: 3rem 0 2rem;
    z-index: 2;
    position: relative;
}

.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-icon {
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
    display: inline-block;
}

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

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: fadeInUp 1s ease 1.4s both;
    z-index: 2;
    cursor: pointer;
    transition: all 0.3s ease;
}

.scroll-indicator:hover {
    transform: translateX(-50%) translateY(-5px);
}

.scroll-indicator:hover .mouse {
    border-color: rgba(255, 255, 255, 1);
}

.scroll-indicator:hover .scroll-text {
    opacity: 1;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.7);
    border-radius: 25px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

.scroll-text {
    font-size: 0.85rem;
    opacity: 0.8;
    letter-spacing: 2px;
    transition: opacity 0.3s ease;
    font-weight: 500;
}

.btn {
    padding: 1.2rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn span {
    position: relative;
    z-index: 1;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: white;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* 内容区域 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-text);
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--gray-text);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 服务卡片 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-text);
}

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

/* 作品展示 */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.portfolio-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    background: var(--gradient-1);
    aspect-ratio: 16/9;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.portfolio-item .portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.portfolio-item .portfolio-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.portfolio-item .portfolio-type {
    font-size: 0.9rem;
    opacity: 0.9;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    margin-bottom: 1rem;
}

.portfolio-item .portfolio-desc {
    font-size: 1rem;
    opacity: 0.95;
    line-height: 1.6;
    max-width: 80%;
}

.portfolio-detail-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    margin-bottom: 2rem;
}

.portfolio-detail-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.portfolio-detail-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.portfolio-detail-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-right: 1.5rem;
    flex-shrink: 0;
}

.portfolio-detail-title {
    flex: 1;
}

.portfolio-detail-title h3 {
    font-size: 1.8rem;
    color: var(--dark-text);
    margin-bottom: 0.5rem;
}

.portfolio-detail-title .portfolio-tag {
    display: inline-block;
    padding: 0.3rem 1rem;
    background: var(--gradient-1);
    color: white;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-right: 0.5rem;
}

.portfolio-detail-content {
    color: var(--gray-text);
    line-height: 1.8;
}

.portfolio-detail-content p {
    margin-bottom: 1rem;
}

.portfolio-detail-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.portfolio-feature-item {
    padding: 1rem;
    background: #f8fafc;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.portfolio-feature-item strong {
    color: var(--dark-text);
    display: block;
    margin-bottom: 0.3rem;
}

/* 关于我们 */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-text);
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--dark-text);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    margin-top: 0.5rem;
    color: var(--gray-text);
    font-weight: 500;
}

/* 联系表单 */
.contact-form {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.contact-form:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    transform: translateY(-5px);
}

.form-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.form-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
    animation: bounce 2s ease-in-out infinite;
}

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

.form-header h2 {
    color: var(--dark-text);
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.form-subtitle {
    color: var(--gray-text);
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--dark-text);
    font-weight: 600;
    font-size: 0.95rem;
}

.label-icon {
    font-size: 1.1rem;
}

.required {
    color: #ef4444;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
    background: #fafafa;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #cbd5e1;
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
    line-height: 1.6;
}

/* 页脚 */
.footer {
    background: var(--dark-bg);
    color: var(--light-text);
    padding: 3rem 0 1.5rem;
    margin-top: 5rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    line-height: 2;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.footer-bottom .beian {
    margin-top: 1rem;
    line-height: 1.8;
}

.footer-bottom .beian a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    margin: 0 0.5rem;
}

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

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

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

/* 响应式设计 */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

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

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

    .container {
        padding: 2rem 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .contact-wrapper {
        grid-template-columns: 1fr !important;
    }

    /* 联系页面样式 */
    .contact-info-wrapper {
        display: flex;
        flex-direction: column;
        gap: 2rem;
    }

    .contact-info-title {
        color: var(--dark-text);
        font-size: 2rem;
        margin-bottom: 1.5rem;
    }

    .contact-info-card {
        background: white;
        padding: 2rem;
        border-radius: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        display: flex;
        flex-direction: column;
        gap: 2rem;
    }

    .contact-item {
        display: flex;
        gap: 1.5rem;
        align-items: flex-start;
        padding-bottom: 2rem;
        border-bottom: 1px solid var(--border-color);
    }

    .contact-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }

    .contact-item-icon {
        width: 50px;
        height: 50px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        flex-shrink: 0;
    }

    .contact-item-content h3 {
        color: var(--dark-text);
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
        font-weight: 600;
    }

    .contact-item-content p {
        color: var(--gray-text);
        font-size: 1rem;
        margin-bottom: 0.5rem;
        line-height: 1.6;
    }

    .contact-link {
        color: var(--primary-color);
        text-decoration: none;
        font-size: 0.9rem;
        font-weight: 500;
        transition: color 0.3s ease;
    }

    .contact-link:hover {
        color: var(--secondary-color);
        text-decoration: underline;
    }

    .contact-note {
        color: var(--gray-text);
        font-size: 0.85rem;
        font-style: italic;
    }

    .contact-advantages {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        padding: 2.5rem;
        border-radius: 20px;
        color: white;
    }

    .contact-advantages h3 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
        text-align: center;
    }

    .advantages-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .advantage-item {
        display: flex;
        align-items: center;
        gap: 1rem;
        background: rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(10px);
        padding: 1.2rem;
        border-radius: 15px;
        border: 1px solid rgba(255, 255, 255, 0.2);
        transition: all 0.3s ease;
    }

    .advantage-item:hover {
        background: rgba(255, 255, 255, 0.25);
        transform: translateY(-5px);
    }

    .advantage-icon {
        font-size: 2rem;
        flex-shrink: 0;
    }

    .advantage-text {
        display: flex;
        flex-direction: column;
    }

    .advantage-text strong {
        font-size: 1rem;
        margin-bottom: 0.3rem;
    }

    .advantage-text span {
        font-size: 0.85rem;
        opacity: 0.9;
    }

    .contact-notice {
        background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
        padding: 1.5rem;
        border-radius: 15px;
        color: white;
        display: flex;
        align-items: center;
        gap: 1rem;
    }

    .notice-icon {
        font-size: 2rem;
        flex-shrink: 0;
    }

    .notice-text strong {
        display: block;
        font-size: 1.1rem;
        margin-bottom: 0.3rem;
    }

    .notice-text p {
        font-size: 0.9rem;
        opacity: 0.95;
        margin: 0;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.3rem;
        letter-spacing: 1px;
    }

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

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

    .stat-number {
        font-size: 2rem;
    }

    .shape {
        opacity: 0.5;
    }

    .portfolio-detail-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .portfolio-detail-icon {
        margin-bottom: 1rem;
        margin-right: 0;
    }

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

    .portfolio-detail-title h3 {
        font-size: 1.5rem;
    }

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

    .contact-item {
        flex-direction: column;
        text-align: center;
    }

    .contact-item-icon {
        margin: 0 auto;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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