/* ========================================
   可酪创新官网 - 科技扁平版风格
   ======================================== */

/* CSS 变量 */
:root {
    --primary: #E85D3F;
    --primary-dark: #C7472F;
    --primary-light: #FFF0E8;
    --secondary: #F9C66B;
    --secondary-dark: #E0A84A;
    --accent: #E85D3F;
    --dark: #1F1F1F;
    --dark-2: #333333;
    --dark-3: #666666;
    --light: #FFFAF7;
    --light-2: #F2E8E4;
    --light-3: #E5D8D2;
    --white: #FFFFFF;
    --gradient-1: linear-gradient(135deg, #E85D3F, #F9C66B);
    --gradient-2: linear-gradient(135deg, #E85D3F, #F9C66B);
    --gradient-3: linear-gradient(135deg, #F9C66B, #E85D3F);
    --shadow-sm: 0 1px 3px rgba(232, 93, 63, 0.12);
    --shadow-md: 0 4px 12px rgba(232, 93, 63, 0.15);
    --shadow-lg: 0 10px 40px rgba(232, 93, 63, 0.18);
    --shadow-xl: 0 20px 60px rgba(232, 93, 63, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --transition: all 0.3s ease;
    --font-main: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--dark);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.5);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
}

.btn-full {
    width: 100%;
}

/* 区域通用样式 */
.section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 16px;
    color: var(--dark);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--dark-3);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   导航栏
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    padding: 12px 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
}

.logo-img {
    width: 42px;
    height: 42px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    background: var(--white);
    padding: 2px;
    transition: var(--transition);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    color: var(--white);
    border-radius: var(--radius-sm);
    font-weight: 900;
    font-size: 1.2rem;
}

.logo-text {
    color: var(--white);
    transition: var(--transition);
}

.navbar.scrolled .logo-text {
    color: var(--dark);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: rgba(255,255,255,0.8);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--white);
}

.navbar.scrolled .nav-links a {
    color: var(--dark-3);
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

.navbar.scrolled .nav-links a::after {
    background: var(--primary);
}

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

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

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: var(--transition);
}

.navbar.scrolled .mobile-menu-btn span {
    background: var(--dark);
}

/* ========================================
   Hero 区域
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: #0f172a;
    overflow: hidden;
    cursor: crosshair;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-bg canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.hero-grid {
    display: none;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, 
        rgba(15, 23, 42, 0.4) 0%, 
        rgba(15, 23, 42, 0.2) 40%, 
        rgba(15, 23, 42, 0.5) 100%);
    z-index: 0;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30%;
    background: linear-gradient(180deg, transparent, #0f172a);
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    padding-top: 100px;
}

.hero-badge {
    display: inline-block;
    padding: 10px 24px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    color: var(--secondary);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 24px;
}

.text-gradient {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 60px;
}

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

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 900;
    color: var(--white);
    line-height: 1;
}

.stat-suffix {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
    margin-top: 8px;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
}

.hero-hint {
    position: absolute;
    top: 50%;
    right: 40px;
    transform: translateY(-50%);
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: rgba(74, 222, 128, 0.08);
    border: 1px solid rgba(74, 222, 128, 0.2);
    border-radius: 50px;
    color: rgba(134, 239, 172, 0.9);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    animation: hintFloat 3s ease-in-out infinite;
    pointer-events: none;
}

.hint-pulse {
    width: 8px;
    height: 8px;
    background: #4ade80;
    border-radius: 50%;
    box-shadow: 0 0 12px #4ade80;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

@keyframes hintFloat {
    0%, 100% { transform: translateY(-50%) translateX(0); opacity: 0.7; }
    50% { transform: translateY(-50%) translateX(-6px); opacity: 1; }
}

@media (max-width: 768px) {
    .hero-hint {
        display: none;
    }
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    margin: 8px auto 0;
    border-right: 2px solid rgba(255,255,255,0.5);
    border-bottom: 2px solid rgba(255,255,255,0.5);
    transform: rotate(45deg);
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: rotate(45deg) translate(0, 0); opacity: 0.5; }
    50% { transform: rotate(45deg) translate(5px, 5px); opacity: 1; }
}

/* ========================================
   服务区域
   ======================================== */
.services {
    background: var(--light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 40px 32px;
    transition: var(--transition);
    border: 1px solid var(--light-2);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--primary);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--gradient-1);
    color: var(--white);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.service-card p {
    color: var(--dark-3);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.service-features {
    padding-left: 0;
}

.service-features li {
    padding: 8px 0;
    color: var(--dark-3);
    font-size: 0.9rem;
    border-top: 1px solid var(--light-2);
}

.service-features li:first-child {
    border-top: none;
}

/* ========================================
   案例区域
   ======================================== */
.cases {
    background: var(--white);
}

.cases-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border: 2px solid var(--light-2);
    border-radius: 50px;
    background: var(--white);
    color: var(--dark-3);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--primary);
    background: var(--primary);
    color: var(--white);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.case-card {
    background: var(--light);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

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

.case-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.case-tag {
    padding: 6px 16px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
}

.case-id {
    font-size: 0.85rem;
    color: var(--dark-3);
    font-weight: 600;
}

.case-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
    line-height: 1.4;
}

.case-card p {
    font-size: 0.9rem;
    color: var(--dark-3);
    line-height: 1.6;
    margin-bottom: 20px;
}

.case-meta {
    display: flex;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--light-2);
}

.case-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.case-meta-label {
    font-size: 0.8rem;
    color: var(--dark-3);
}

.case-meta-value {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary);
}

.case-card.hidden {
    display: none;
}

/* 案例弹窗 */
.case-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.case-modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 48px;
    z-index: 1;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--light);
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--light-2);
}

.modal-body h2 {
    font-size: 1.8rem;
    font-weight: 900;
    margin-bottom: 8px;
    color: var(--dark);
}

.modal-body .case-tag {
    display: inline-block;
    margin-bottom: 24px;
}

.modal-body p {
    font-size: 1rem;
    color: var(--dark-3);
    line-height: 1.8;
    margin-bottom: 24px;
}

.modal-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.modal-stat {
    background: var(--light);
    padding: 20px;
    border-radius: var(--radius-sm);
    text-align: center;
}

.modal-stat-value {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary);
    display: block;
}

.modal-stat-label {
    font-size: 0.85rem;
    color: var(--dark-3);
}

/* ========================================
   产品中心
   ======================================== */
.product {
    background: var(--light);
}

.product-showcase {
    max-width: 1000px;
    margin: 0 auto;
}

.product-card-main {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--light-2);
}

.product-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--gradient-1);
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    border-radius: 0 0 var(--radius-sm) 0;
    margin-bottom: 32px;
}

.product-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 0 40px 40px;
}

.product-info h3 {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 8px;
    color: var(--dark);
}

.product-subtitle {
    font-size: 1.1rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 16px;
}

.product-desc {
    font-size: 1rem;
    color: var(--dark-3);
    line-height: 1.8;
    margin-bottom: 32px;
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.product-feature {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    background: var(--light);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.product-feature:hover {
    background: var(--primary-light);
}

.feature-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: var(--radius-sm);
}

.product-feature strong {
    display: block;
    font-size: 1rem;
    color: var(--dark);
    margin-bottom: 4px;
}

.product-feature p {
    font-size: 0.85rem;
    color: var(--dark-3);
    margin: 0;
}

.product-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.product-stat {
    flex: 1;
    text-align: center;
    padding: 16px 8px;
    background: var(--light);
    border-radius: var(--radius-sm);
}

.stat-num {
    display: block;
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--primary);
}

.stat-desc {
    font-size: 0.75rem;
    color: var(--dark-3);
}

.product-actions {
    display: flex;
    gap: 16px;
}

.btn-outline-dark {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid var(--light-2);
    background: transparent;
    color: var(--dark);
    text-align: center;
    text-decoration: none;
}

.btn-outline-dark:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* 预览区域 */
.product-preview {
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-mockup {
    width: 100%;
    background: var(--dark);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: #1a1a2e;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.mockup-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.mockup-dot.red { background: #ff5f57; }
.mockup-dot.yellow { background: #ffbd2e; }
.mockup-dot.green { background: #28c840; }

.mockup-title {
    flex: 1;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

.mockup-body {
    padding: 24px;
}

.mockup-score {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.score-circle {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: conic-gradient(var(--primary) 86%, var(--dark-2) 0);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.score-circle::before {
    content: '';
    position: absolute;
    width: 70px;
    height: 70px;
    background: var(--dark);
    border-radius: 50%;
}

.score-num {
    position: relative;
    z-index: 1;
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--white);
}

.score-label {
    position: relative;
    z-index: 1;
    font-size: 0.7rem;
    color: rgba(255,255,255,0.5);
}

.mockup-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.mockup-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.8);
}

.mockup-item-icon {
    color: #10b981;
    font-weight: 700;
}

.mockup-item:nth-child(3) .mockup-item-icon {
    color: #f59e0b;
}

.mockup-chart {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 80px;
    padding-top: 16px;
}

.chart-bar {
    flex: 1;
    background: var(--primary);
    border-radius: 4px 4px 0 0;
    min-height: 20px;
    opacity: 0.5;
    transition: var(--transition);
}

.chart-bar.active {
    opacity: 1;
    background: var(--gradient-1);
}

/* ========================================
   团队区域
   ======================================== */
.team {
    background: var(--light);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.team-grid.advisor-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 700px;
    margin-top: 48px;
}

.team-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 40px 32px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--light-2);
}

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

.team-avatar {
    margin-bottom: 24px;
}

.avatar-placeholder {
    width: 100px;
    height: 100px;
    background: var(--gradient-1);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 900;
    margin: 0 auto;
}

.team-avatar img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto;
    display: block;
    border: 3px solid var(--primary-light);
    box-shadow: 0 4px 16px rgba(232, 93, 63, 0.2);
    transition: var(--transition);
}

.team-card:hover .team-avatar img {
    transform: scale(1.08);
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(232, 93, 63, 0.35);
}

.team-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}

.team-role {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.team-bio p {
    font-size: 0.9rem;
    color: var(--dark-3);
    line-height: 1.6;
    padding: 4px 0;
}

/* ========================================
   报价区域
   ======================================== */
.pricing {
    background: var(--white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.pricing-card {
    background: var(--light);
    border-radius: var(--radius-md);
    padding: 40px 32px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
}

.pricing-card.featured {
    background: var(--dark);
    color: var(--white);
    border-color: var(--primary);
    transform: scale(1.05);
}

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

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.pricing-badge-popular {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 24px;
    background: var(--gradient-2);
    color: var(--white);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
}

.pricing-header {
    margin-bottom: 24px;
}

.pricing-level {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--dark-3);
}

.pricing-card.featured .pricing-level {
    color: rgba(255,255,255,0.7);
}

.pricing-price {
    margin-bottom: 8px;
}

.price {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary);
}

.pricing-card.featured .price {
    color: var(--white);
}

.period {
    font-size: 1rem;
    color: var(--dark-3);
    font-weight: 500;
}

.pricing-card.featured .period {
    color: rgba(255,255,255,0.7);
}

.pricing-desc {
    font-size: 0.9rem;
    color: var(--dark-3);
    margin-bottom: 24px;
}

.pricing-card.featured .pricing-desc {
    color: rgba(255,255,255,0.7);
}

.pricing-features ul {
    text-align: left;
    padding-left: 0;
}

.pricing-features li {
    padding: 10px 0;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--light-2);
    color: var(--dark-3);
}

.pricing-card.featured .pricing-features li {
    color: rgba(255,255,255,0.8);
    border-bottom-color: rgba(255,255,255,0.1);
}

.pricing-footer {
    margin-top: 24px;
}

.pricing-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.pricing-card.featured .pricing-badge {
    background: rgba(255,255,255,0.2);
    color: var(--white);
}

.pricing-notes {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.note-card {
    background: var(--light);
    border-radius: var(--radius-md);
    padding: 32px;
}

.note-card h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--dark);
}

.payment-terms {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

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

.term-percent {
    display: block;
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary);
}

.term-label {
    font-size: 0.85rem;
    color: var(--dark-3);
}

.note-card ul {
    padding-left: 0;
}

.note-card li {
    padding: 8px 0;
    color: var(--dark-3);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--light-2);
}

.note-card li:last-child {
    border-bottom: none;
}

/* ========================================
   联系区域
   ======================================== */
.contact {
    background: var(--light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: var(--transition);
    border: 1px solid var(--light-2);
}

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

.contact-card.highlight {
    background: var(--gradient-1);
    color: var(--white);
    border: none;
}

.contact-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.contact-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 1rem;
    color: var(--dark-3);
}

.contact-card.highlight p {
    color: rgba(255,255,255,0.8);
}

.contact-form-wrapper {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 20px;
    border: 2px solid var(--light-2);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font-main);
    transition: var(--transition);
    background: var(--light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ========================================
   页脚
   ======================================== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-brand .footer-logo .logo-text {
    color: var(--white);
    font-weight: 700;
    font-size: 1.2rem;
}

.footer-brand p {
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-links ul {
    padding-left: 0;
}

.footer-links li {
    padding: 8px 0;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-contact p {
    color: rgba(255,255,255,0.6);
    padding: 8px 0;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    color: rgba(255,255,255,0.4);
    font-size: 0.9rem;
}

/* ========================================
   返回顶部
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* ========================================
   动画
   ======================================== */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].animated {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-card.featured {
        grid-column: span 2;
        transform: scale(1);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-content {
        grid-template-columns: 1fr;
    }
    
    .product-preview {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 24px;
        transition: var(--transition);
        box-shadow: var(--shadow-xl);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links a {
        color: var(--dark) !important;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .team-grid.advisor-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        grid-column: span 1;
        transform: scale(1);
    }
    
    .pricing-notes {
        grid-template-columns: 1fr;
    }
    
    .payment-terms {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .modal-content {
        padding: 32px 24px;
    }
    
    .modal-stats {
        grid-template-columns: 1fr;
    }
    
    .product-content {
        grid-template-columns: 1fr;
        padding: 0 20px 32px;
    }
    
    .product-review {
        order: -1;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .product-stats {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-btns {
        flex-direction: column;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .payment-terms {
        grid-template-columns: 1fr;
    }
}