/* =====================
   摩莱美 MORAMAY 官网样式 - 蓝色VI版
   医疗器械品牌 · 严肃专业纯白蓝
   ===================== */

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f8fc;
    --bg-card: #ffffff;
    --accent: #2E54A1;
    --accent-hover: #3A8DDE;
    --accent-dark: #1E386B;
    --text-primary: #1a1a2e;
    --text-secondary: #5a6a7a;
    --border: #d8e2f0;
    --radius: 10px;
    --transition: 0.3s ease;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-hover); }

.container {
    width: 92%;
    max-width: 1200px;
    margin: 0 auto;
}

/* ===================== 机械三徽章 ===================== */
.badge-mechanical {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff;
    padding: 0.35rem 0.9rem;
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 1px;
    box-shadow: 0 2px 8px rgba(46,84,161,0.25);
}

.badge-mechanical::before {
    content: '⚙';
    font-size: 0.85rem;
}

.badge-outline-mechanical {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    border: 1.5px solid var(--accent);
    color: var(--accent);
    padding: 0.3rem 0.8rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
}

.badge-outline-mechanical::before {
    content: '⚙';
}

/* ===================== Header & Nav ===================== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 4%;
    height: 70px;
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 2px;
}

.nav-brand .brand-sub {
    font-size: 0.65rem;
    color: var(--text-secondary);
    letter-spacing: 4px;
    text-transform: uppercase;
    display: block;
    margin-top: -4px;
}

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

.nav-menu a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 0;
    width: 0; height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 24px; height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ===================== Hero ===================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 4% 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #f5f8fc 0%, #ffffff 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(46,84,161,0.06) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(58,141,222,0.04) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content { position: relative; z-index: 1; }

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.2rem;
    color: var(--accent-dark);
}

.hero .tagline {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2rem;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.badge {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 0.5rem 1.2rem;
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--accent);
    letter-spacing: 1px;
    font-weight: 500;
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff;
    padding: 0.9rem 2.2rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(46,84,161,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(46,84,161,0.35);
    color: #fff;
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: var(--accent);
    padding: 0.85rem 2rem;
    border-radius: var(--radius);
    font-weight: 600;
    border: 1.5px solid var(--accent);
    margin-left: 1rem;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: rgba(46,84,161,0.06);
    color: var(--accent-hover);
}

/* ===================== Section Styles ===================== */
.section {
    padding: 100px 4%;
    position: relative;
}

.section-alt {
    background: var(--bg-secondary);
}

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

.section-label {
    display: inline-block;
    color: var(--accent);
    font-size: 0.8rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
    border: 1px solid var(--border);
    padding: 0.3rem 0.9rem;
    border-radius: 100px;
    background: #fff;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--accent-dark);
}

.section-desc {
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
    font-size: 1.05rem;
}

/* ===================== Cards ===================== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-6px);
    border-color: rgba(46,84,161,0.25);
    box-shadow: 0 20px 50px rgba(46,84,161,0.1);
}

.card:hover::before { opacity: 1; }

.card-icon {
    font-size: 2.2rem;
    margin-bottom: 1.2rem;
    color: var(--accent);
}

.card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--accent-dark);
}

.card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ===================== Product Page ===================== */
.product-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 140px 4% 80px;
}

.product-visual {
    background: linear-gradient(135deg, var(--bg-secondary), #eef3fa);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 3rem;
    text-align: center;
    position: relative;
}

.product-visual .vial-name {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-dark);
    margin-bottom: 0.5rem;
}

.product-visual .vial-tag {
    display: inline-block;
    margin-bottom: 1.5rem;
}

.product-visual .vial-spec {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 2;
}

.product-info h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--accent-dark);
}

.product-info .subtitle {
    color: var(--accent);
    font-size: 1.05rem;
    margin-bottom: 1.2rem;
    display: block;
}

.product-info p {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    line-height: 1.8;
}

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

.spec-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem 1.2rem;
}

.spec-item .spec-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 0.3rem;
}

.spec-item .spec-value {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--accent);
}

.tech-section {
    padding: 80px 4%;
}

.tech-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.tech-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 1.5rem;
    align-items: start;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.8rem;
}

.tech-num {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--accent);
    opacity: 0.3;
    line-height: 1;
}

.tech-content h4 {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
    color: var(--accent-dark);
}

.tech-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ===================== Mofa Project ===================== */
.mofa-hero {
    padding: 140px 4% 60px;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-secondary), #fff);
}

.mofa-hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    margin-bottom: 1rem;
    color: var(--accent-dark);
}

.mofa-hero .formula {
    display: inline-block;
    background: #fff;
    border: 1px solid var(--border);
    padding: 1rem 2rem;
    border-radius: var(--radius);
    font-size: 1.05rem;
    color: var(--accent);
    margin-top: 1.5rem;
    letter-spacing: 1px;
    box-shadow: 0 2px 12px rgba(46,84,161,0.06);
}

.zone-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.zone-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.zone-card h4 {
    color: var(--accent);
    font-size: 1.15rem;
    margin-bottom: 0.8rem;
}

.zone-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.8;
}

/* ===================== About ===================== */
.about-hero {
    padding: 140px 4% 60px;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-secondary), #fff);
}

.about-hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 1rem;
    color: var(--accent-dark);
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.mission-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.mission-card .num {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.mission-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--accent-dark);
}

.mission-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.8;
}

/* ===================== Contact & Support ===================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h3 {
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    color: var(--accent-dark);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-item .icon {
    color: var(--accent);
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.contact-item div strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.2rem;
}

.contact-item div span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.8rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(46,84,161,0.08);
}

/* ===================== Support Tabs ===================== */
.support-tabs {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    background: #fff;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 0.7rem 1.5rem;
    border-radius: 100px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    transition: var(--transition);
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.tab-content {
    display: none;
    max-width: 800px;
    margin: 0 auto;
}

.tab-content.active {
    display: block;
}

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

.care-list li {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.2rem 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    position: relative;
    padding-left: 3rem;
    box-shadow: 0 1px 6px rgba(0,0,0,0.03);
}

.care-list li::before {
    content: '✓';
    position: absolute;
    left: 1.2rem;
    top: 1.2rem;
    color: var(--accent);
    font-weight: 700;
}

/* ===================== Footer ===================== */
.site-footer {
    background: var(--accent-dark);
    border-top: 1px solid var(--border);
    padding: 60px 4% 30px;
    color: rgba(255,255,255,0.7);
}

.site-footer a { color: rgba(255,255,255,0.8); }
.site-footer a:hover { color: #fff; }

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 2px;
}

.footer-brand p {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    margin-top: 0.8rem;
    line-height: 1.8;
}

.footer-col h4 {
    font-size: 1rem;
    margin-bottom: 1.2rem;
    color: #fff;
}

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

.footer-col ul li {
    margin-bottom: 0.7rem;
}

.footer-col ul li a {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
}

.footer-col ul li a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
}

/* ===================== Animations ===================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================== Responsive ===================== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px; left: 0; right: 0;
        background: #fff;
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateY(-150%);
        transition: var(--transition);
    }

    .nav-menu.open {
        transform: translateY(0);
    }

    .nav-toggle { display: flex; }

    .product-hero,
    .contact-grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .btn-secondary {
        margin-left: 0;
        margin-top: 1rem;
        display: block;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }

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