/* ===== 基础重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --pink-50: #fdf2f8;
    --pink-100: #fce7f3;
    --pink-200: #fbcfe8;
    --pink-300: #f9a8d4;
    --pink-400: #f472b6;
    --pink-500: #ec4899;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.03);
    --radius: 12px;
}

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ===== 导航 ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    transition: box-shadow 0.3s;
    border-bottom: 1px solid transparent;
}
.navbar.scrolled { border-bottom-color: var(--gray-100); box-shadow: var(--shadow-sm); }
.nav-content {
    display: flex; align-items: center; justify-content: space-between;
    height: 64px;
}
.logo { font-size: 18px; font-weight: 700; color: var(--gray-900); text-decoration: none; }
.nav-links { display: flex; gap: 28px; }
.nav-links a {
    font-size: 14px; color: var(--gray-600); text-decoration: none;
    transition: color 0.2s; font-weight: 500;
}
.nav-links a:hover { color: var(--pink-500); }
.mobile-menu-btn {
    display: none; background: none; border: none; font-size: 24px;
    cursor: pointer; color: var(--gray-700);
}
.mobile-menu {
    display: none; position: fixed; top: 64px; left: 0; right: 0;
    background: var(--white); border-bottom: 1px solid var(--gray-200);
    flex-direction: column; z-index: 99; box-shadow: var(--shadow-md);
}
.mobile-menu.active { display: flex; }
.mobile-menu a {
    padding: 14px 24px; color: var(--gray-700); text-decoration: none;
    border-bottom: 1px solid var(--gray-100); font-size: 15px;
}

/* ===== Hero ===== */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--pink-50) 0%, var(--white) 50%, var(--pink-50) 100%);
}
.hero-content { display: flex; align-items: center; gap: 60px; }
.hero-text { flex: 1; }
.hero-text h1 {
    font-size: 38px; font-weight: 800; line-height: 1.3;
    color: var(--gray-900); margin-bottom: 16px;
}
.highlight { color: var(--pink-500); }
.hero-desc {
    font-size: 16px; color: var(--gray-600); margin-bottom: 24px;
    max-width: 500px; line-height: 1.8;
}
.hero-badges { display: flex; gap: 10px; margin-bottom: 32px; flex-wrap: wrap; }
.badge {
    background: var(--pink-100); color: var(--pink-500); font-size: 13px;
    font-weight: 600; padding: 6px 14px; border-radius: 20px;
}
.btn-primary {
    display: inline-block; background: var(--pink-500); color: var(--white);
    padding: 12px 32px; border-radius: 8px; text-decoration: none;
    font-weight: 600; font-size: 15px; transition: background 0.2s;
}
.btn-primary:hover { background: var(--pink-400); }
.hero-visual { flex: 0 0 280px; }
.cat-card {
    background: linear-gradient(135deg, var(--pink-100), var(--pink-200));
    border-radius: 20px; padding: 40px; text-align: center;
    box-shadow: var(--shadow-lg);
}
.cat-emoji { font-size: 64px; margin-bottom: 12px; }
.cat-card p { font-size: 18px; font-weight: 600; color: var(--gray-700); line-height: 1.6; }

/* ===== 通用标题 ===== */
.section-title {
    text-align: center; font-size: 28px; font-weight: 700;
    color: var(--gray-900); margin-bottom: 12px;
}
.section-subtitle {
    text-align: center; font-size: 15px; color: var(--gray-500);
    margin-bottom: 48px;
}

/* ===== 核心优势 ===== */
.features { padding: 80px 0; background: var(--white); }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card {
    background: var(--gray-50); border-radius: var(--radius); padding: 28px 20px;
    text-align: center; transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.feature-icon { font-size: 36px; margin-bottom: 12px; }
.feature-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--gray-800); }
.feature-card p { font-size: 13px; color: var(--gray-500); line-height: 1.6; }

/* ===== 服务项目 ===== */
.services { padding: 80px 0; background: var(--pink-50); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
    background: var(--white); border-radius: var(--radius); padding: 32px 24px;
    position: relative; border: 1px solid var(--gray-100);
    transition: transform 0.2s, box-shadow 0.2s;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.service-card.featured { border-color: var(--pink-300); background: linear-gradient(to bottom, var(--white), var(--pink-50)); }
.service-tag {
    position: absolute; top: -10px; right: 20px;
    background: var(--pink-500); color: var(--white);
    font-size: 12px; font-weight: 600; padding: 4px 12px;
    border-radius: 12px;
}
.service-card.featured .service-tag { background: var(--pink-500); }
.service-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; color: var(--gray-900); }
.service-price {
    font-size: 36px; font-weight: 800; color: var(--pink-500);
    margin-bottom: 20px;
}
.service-price span { font-size: 14px; font-weight: 400; color: var(--gray-500); }
.service-list { list-style: none; margin-bottom: 16px; }
.service-list li {
    padding: 8px 0; border-bottom: 1px solid var(--gray-100);
    font-size: 14px; color: var(--gray-700);
}
.service-list li:last-child { border-bottom: none; }
.service-note { font-size: 13px; color: var(--gray-500); margin-top: 8px; }

/* ===== 关于我们 ===== */
.about { padding: 80px 0; background: var(--white); }
.about-content { display: flex; gap: 48px; }
.about-text { flex: 1; }
.about-text p { font-size: 15px; color: var(--gray-600); margin-bottom: 16px; line-height: 1.8; }
.about-text h3 { font-size: 18px; font-weight: 700; color: var(--gray-800); margin: 28px 0 10px; }
.about-sidebar { flex: 0 0 320px; }
.info-card {
    background: var(--pink-50); border-radius: var(--radius); padding: 28px;
    border: 1px solid var(--pink-100);
}
.info-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 16px; color: var(--gray-800); }
.info-card ul { list-style: none; }
.info-card li { padding: 8px 0; font-size: 14px; color: var(--gray-600); border-bottom: 1px solid var(--pink-100); }
.info-card li:last-child { border-bottom: none; }
.info-card li strong { color: var(--gray-800); }
.about-stats {
    display: flex; gap: 24px; margin-top: 32px;
    padding-top: 24px; border-top: 1px solid var(--gray-200);
}
.stat { text-align: center; }
.stat-num { font-size: 28px; font-weight: 800; color: var(--pink-500); }
.stat-label { font-size: 12px; color: var(--gray-500); margin-top: 4px; }

/* ===== FAQ ===== */
.faq { padding: 80px 0; background: var(--gray-50); }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { margin-bottom: 12px; }
.faq-q {
    font-size: 16px; font-weight: 600; color: var(--gray-800);
    padding: 18px 24px; background: var(--white); border-radius: var(--radius);
    cursor: pointer; transition: all 0.2s; display: flex; justify-content: space-between;
    align-items: center; user-select: none;
}
.faq-q::after { content: "+"; font-size: 20px; color: var(--gray-400); transition: transform 0.2s; }
.faq-q.open::after { transform: rotate(45deg); color: var(--pink-500); }
.faq-q:hover { background: var(--pink-50); }
.faq-a {
    max-height: 0; overflow: hidden; transition: max-height 0.3s ease-out;
    background: var(--white); border-radius: 0 0 var(--radius) var(--radius);
}
.faq-a p { padding: 0 24px 18px; font-size: 14px; color: var(--gray-600); line-height: 1.8; }

/* ===== 联系我们 ===== */
.contact { padding: 80px 0; background: var(--white); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-icon { font-size: 24px; flex-shrink: 0; margin-top: 2px; }
.contact-item h3 { font-size: 15px; font-weight: 700; color: var(--gray-800); margin-bottom: 4px; }
.contact-item p { font-size: 14px; color: var(--gray-600); }
.contact-cta {
    background: var(--pink-50); border-radius: var(--radius); padding: 36px;
    border: 1px solid var(--pink-100);
}
.contact-cta h3 { font-size: 22px; font-weight: 700; color: var(--gray-900); margin-bottom: 10px; }
.contact-cta p { font-size: 14px; color: var(--gray-600); margin-bottom: 8px; }
.contact-note { font-size: 15px !important; font-weight: 600; color: var(--pink-500) !important; margin-top: 12px !important; }
.area-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 20px; }
.area-tags span {
    background: var(--white); border: 1px solid var(--pink-200);
    color: var(--gray-600); font-size: 12px; padding: 4px 12px;
    border-radius: 16px;
}

/* ===== 页脚 ===== */
.footer { background: var(--gray-900); color: var(--gray-300); padding: 48px 0 24px; }
.footer-content { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 32px; }
.footer-brand h3 { color: var(--white); font-size: 18px; margin-bottom: 8px; }
.footer-brand p { font-size: 13px; color: var(--gray-500); margin-bottom: 4px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--gray-400); text-decoration: none; font-size: 13px; transition: color 0.2s; }
.footer-links a:hover { color: var(--pink-300); }
.footer-bottom { border-top: 1px solid var(--gray-800); padding-top: 20px; }
.footer-bottom p { font-size: 12px; color: var(--gray-600); text-align: center; }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    .hero-content { flex-direction: column; text-align: center; }
    .hero-text h1 { font-size: 28px; }
    .hero-desc { margin-left: auto; margin-right: auto; }
    .hero-badges { justify-content: center; }
    .hero-visual { flex: none; width: 100%; max-width: 200px; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .service-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .about-content { flex-direction: column; }
    .about-sidebar { flex: none; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; gap: 24px; }
    .footer-links { flex-wrap: wrap; }
}