/* ===== 全局样式 & 变量 ===== */
:root {
    --primary: #c9a76c;
    --primary-dark: #a8894f;
    --primary-light: #e8d5b0;
    --secondary: #1a2a3a;
    --accent: #d4af37;
    --success: #27ae60;
    --bg-light: #fafaf8;
    --bg-cream: #f5f3ef;
    --bg-dark: #0d1519;
    --text-dark: #1a2a3a;
    --text-light: #6b7280;
    --text-muted: #9ca3af;
    --white: #fff;
    --border: #e5e5e5;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow: 0 10px 40px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
    --shadow-gold: 0 10px 40px rgba(201, 167, 108, 0.25);
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--white);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

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

.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: var(--secondary);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.section-title {
    font-size: 2.8rem;
    color: var(--secondary);
    margin-bottom: 16px;
    font-weight: 700;
    line-height: 1.3;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    margin: 20px auto 0;
    border-radius: 2px;
}

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

.bg-cream {
    background: var(--bg-cream);
}

.bg-dark {
    background: var(--secondary);
    color: var(--white);
}

.bg-dark .section-tag {
    background: rgba(255,255,255,0.15);
    color: var(--white);
}

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

.bg-dark .section-desc {
    color: rgba(255,255,255,0.7);
}

/* ===== 动画 ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 按钮样式 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 36px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(201, 167, 108, 0.4);
}

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

.btn-secondary:hover {
    background: var(--white);
    color: var(--secondary);
}

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

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

.btn-full {
    width: 100%;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255,255,255,0.98);
    box-shadow: var(--shadow);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    max-width: 1280px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--secondary);
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--white);
    box-shadow: var(--shadow-gold);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.logo-text small {
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 400;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width 0.3s ease;
}

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

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

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

.nav-phone {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--secondary);
}

.nav-phone-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.6rem;
    cursor: pointer;
    color: var(--secondary);
    padding: 8px;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    padding: 20px;
}

.mobile-menu.active {
    display: block;
    animation: fadeInUp 0.3s ease;
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-menu a {
    display: block;
    padding: 14px 20px;
    color: var(--secondary);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.mobile-menu a:hover {
    background: var(--bg-cream);
    color: var(--primary);
}

/* ===== Hero 区域 ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, var(--secondary) 0%, #0f1a24 50%, #1a2a3a 100%);
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(201, 167, 108, 0.15) 0%, transparent 70%);
    animation: gradientFlow 15s ease infinite;
}

.hero-bg::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 60%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(212, 175, 55, 0.1) 0%, transparent 60%);
    animation: gradientFlow 20s ease infinite reverse;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(201, 167, 108, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(201, 167, 108, 0.03) 1px, transparent 1px);
    background-size: 80px 80px;
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 900px;
    padding: 0 24px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(201, 167, 108, 0.15);
    border: 1px solid rgba(201, 167, 108, 0.3);
    padding: 10px 24px;
    border-radius: 50px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 30px;
    animation: fadeInUp 0.8s ease;
}

.hero-badge-icon {
    font-size: 1.2rem;
}

.hero h1 {
    font-size: 4rem;
    color: var(--white);
    margin-bottom: 24px;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.4rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 40px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
    animation: fadeInUp 0.8s ease 0.6s both;
}

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

.hero-stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}

.hero-stat-label {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.6);
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 50px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.8s both;
}

.hero-badge-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
    padding: 12px 24px;
    border-radius: 50px;
    color: var(--white);
    font-weight: 500;
    border: 1px solid rgba(255,255,255,0.1);
}

.hero-badge-item-icon {
    font-size: 1.2rem;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 1s both;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: float 3s ease-in-out infinite;
}

.hero-scroll a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
}

.hero-scroll-icon {
    font-size: 1.5rem;
}

/* ===== 关于我 ===== */
.about-content {
    display: grid;
    grid-template-columns: 450px 1fr;
    gap: 80px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
}

.about-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image-bg {
    width: 100%;
    aspect-ratio: 4/5;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.about-avatar {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    margin-bottom: 20px;
    border: 4px solid rgba(255,255,255,0.3);
    overflow: hidden;
}

.about-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
}

.about-name {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.about-title {
    font-size: 1.1rem;
    opacity: 0.9;
}

.about-experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 140px;
    height: 140px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--primary-light);
}

.about-experience-badge .number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.about-experience-badge .text {
    font-size: 0.85rem;
    color: var(--text-light);
}

.about-text h3 {
    font-size: 2.2rem;
    color: var(--secondary);
    margin-bottom: 24px;
    line-height: 1.3;
}

.about-text h3 span {
    color: var(--primary);
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 1.05rem;
    line-height: 1.9;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.feature-card {
    text-align: center;
    padding: 24px;
    background: var(--bg-cream);
    border-radius: var(--radius);
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--white);
    box-shadow: var(--shadow);
    transform: translateY(-5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin: 0 auto 16px;
}

.feature-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.feature-label {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ===== 服务项目 ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

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

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--bg-cream) 0%, var(--bg-light) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 24px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    transform: scale(1.1);
}

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

.service-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.7;
}

.service-card .arrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    margin-top: 16px;
    opacity: 0;
    transform: translateX(-10px);
    transition: var(--transition);
}

.service-card:hover .arrow {
    opacity: 1;
    transform: translateX(0);
}

/* ===== 案例展示 ===== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.case-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.case-image {
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.case-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.3);
    opacity: 0;
    transition: opacity 0.3s;
}

.case-card:hover .case-image::before {
    opacity: 1;
}

.case-number {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 700;
    color: var(--secondary);
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
}

.case-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.case-card:hover .case-overlay {
    opacity: 1;
}

.case-overlay-btn {
    background: var(--primary);
    color: var(--white);
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.case-info {
    padding: 28px;
}

.case-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: var(--secondary);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 14px;
}

.case-info h3 {
    font-size: 1.2rem;
    color: var(--secondary);
    margin-bottom: 10px;
}

.case-desc {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 18px;
    line-height: 1.6;
}

.case-meta {
    display: flex;
    gap: 20px;
    color: var(--text-muted);
    font-size: 0.9rem;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.case-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ===== 服务流程 ===== */
.process-section {
    background: linear-gradient(135deg, var(--secondary) 0%, #0f1a24 100%);
    position: relative;
    overflow: hidden;
}

.process-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(201, 167, 108, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(201, 167, 108, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.process-section .section-tag {
    background: rgba(201, 167, 108, 0.2);
    color: var(--primary);
}

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

.process-section .section-desc {
    color: rgba(255,255,255,0.7);
}

.process-timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
    padding: 40px 0;
}

.process-line {
    position: absolute;
    top: 70px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
    opacity: 0.3;
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 24px;
    box-shadow: 0 10px 30px rgba(201, 167, 108, 0.3);
    position: relative;
}

.step-icon::before {
    content: attr(data-num);
    position: absolute;
    top: -10px;
    right: -10px;
    width: 30px;
    height: 30px;
    background: var(--accent);
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.process-step h3 {
    font-size: 1.2rem;
    color: var(--white);
    margin-bottom: 10px;
}

.process-step p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    max-width: 180px;
    margin: 0 auto;
}

/* ===== 客户评价 ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    position: relative;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 6rem;
    color: var(--primary);
    opacity: 0.1;
    font-family: serif;
    line-height: 1;
}

.testimonial-stars {
    color: #f1c40f;
    font-size: 1.1rem;
    margin-bottom: 20px;
    letter-spacing: 4px;
}

.testimonial-card p {
    color: var(--text-dark);
    line-height: 1.8;
    font-size: 1.05rem;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.2rem;
}

.author-info strong {
    display: block;
    color: var(--secondary);
    font-size: 1rem;
}

.author-info span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== 为什么选择我们 ===== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.advantage-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.advantage-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 24px;
}

.advantage-card h3 {
    font-size: 1.2rem;
    color: var(--secondary);
    margin-bottom: 12px;
}

.advantage-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ===== 联系方式 ===== */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.contact-card-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
}

.contact-card-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.contact-card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    flex-shrink: 0;
}

.contact-card-content h4 {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 6px;
    font-weight: 500;
}

.contact-card-content p {
    font-size: 1.2rem;
    color: var(--secondary);
    font-weight: 700;
    margin-bottom: 4px;
}

.contact-card-tip {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.contact-cta {
    text-align: center;
    margin-top: 50px;
    padding: 30px;
    background: linear-gradient(135deg, var(--bg-cream) 0%, var(--bg-light) 100%);
    border-radius: var(--radius-lg);
}

.contact-cta p {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* 旧样式保留用于兼容 */
.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    align-items: start;
}

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

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 28px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.contact-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
}

.contact-card-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    flex-shrink: 0;
}

.contact-card h4 {
    font-size: 1.1rem;
    color: var(--secondary);
    margin-bottom: 6px;
}

.contact-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.contact-card a {
    color: var(--primary);
    font-weight: 600;
    font-size: 1.2rem;
}

.contact-form-wrapper {
    background: var(--white);
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.contact-form-wrapper h3 {
    font-size: 1.8rem;
    color: var(--secondary);
    margin-bottom: 8px;
    text-align: center;
}

.contact-form-wrapper > p {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 32px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(201, 167, 108, 0.1);
}

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

.form-disclaimer {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 16px;
}

/* ===== 底部 ===== */
.footer {
    background: var(--bg-dark);
    color: var(--white);
    padding: 80px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 20px;
}

.footer-brand p {
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
    margin-top: 16px;
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--white);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.footer-contact p {
    color: rgba(255,255,255,0.6);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-contact p span:first-child {
    font-size: 1.2rem;
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.footer-social a {
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    color: rgba(255,255,255,0.4);
    font-size: 0.9rem;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-bottom a {
    color: var(--primary);
}

.footer-bottom .beian a {
    color: rgba(255,255,255,0.6);
    transition: color 0.3s;
}

.footer-bottom .beian a:hover {
    color: var(--primary);
}

/* ===== 浮动联系按钮 ===== */
.floating-contact {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.float-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.float-btn::before {
    content: attr(data-tip);
    position: absolute;
    right: 70px;
    background: var(--secondary);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: var(--transition);
}

.float-btn:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.float-btn:hover {
    transform: scale(1.1);
}

.float-btn.phone {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
}

.float-btn.wechat {
    background: linear-gradient(135deg, #06c167 0%, #00b359 100%);
}

.float-btn.form {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

/* ===== 弹窗 ===== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(8px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    padding: 50px;
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 420px;
    width: 90%;
    position: relative;
    animation: scaleIn 0.3s ease;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    width: 36px;
    height: 36px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--primary);
    color: var(--white);
}

.modal-content h3 {
    font-size: 1.6rem;
    color: var(--secondary);
    margin-bottom: 24px;
}

.qrcode-wrapper {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius);
    margin-bottom: 24px;
}

.qrcode-placeholder {
    width: 180px;
    height: 180px;
    background: var(--white);
    margin: 0 auto 20px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    box-shadow: var(--shadow-sm);
}

.qrcode-wrapper p {
    font-size: 1.1rem;
    color: var(--secondary);
    font-weight: 600;
}

.qr-hint {
    font-size: 0.85rem !important;
    color: var(--text-muted) !important;
    font-weight: 400 !important;
    margin-top: 8px;
}

.modal-tip {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
}

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
    .hero h1 {
        font-size: 3.2rem;
    }
    
    .hero-stats {
        gap: 40px;
    }
    
    .about-content {
        gap: 60px;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 992px) {
    .nav-links,
    .nav-cta {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .hero-stat-number {
        font-size: 2.4rem;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-image-wrapper {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .about-features {
        justify-content: center;
    }
    
    .services-grid,
    .cases-grid,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-timeline {
        flex-wrap: wrap;
        gap: 40px;
    }
    
    .process-line {
        display: none;
    }
    
    .process-step {
        flex: 0 0 calc(33.333% - 30px);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .services-grid,
    .cases-grid,
    .testimonials-grid,
    .advantages-grid,
    .contact-cards {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        flex: 0 0 100%;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .floating-contact {
        bottom: 20px;
        right: 20px;
    }
    
    .float-btn {
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
    }
    
    .float-btn::before {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding-top: 100px;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-form-wrapper {
        padding: 32px 24px;
    }
    
    .modal-content {
        padding: 40px 24px;
    }
}