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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, Helvetica, Arial, sans-serif;
    color: #1f2933;
    background-color: #ffffff;
    line-height: 1.7;
}

.container {
    width: 90%;
    max-width: 1080px;
    margin: 0 auto;
}

/* Header */
.header {
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.nav a {
    margin-left: 28px;
    text-decoration: none;
    font-size: 15px;
    color: #374151;
}

.nav a:hover {
    color: #111827;
}

/* Hero */
.hero {
    background: linear-gradient(180deg, #f9fafb 0%, #ffffff 100%);
    padding: 100px 0 90px;
}

.hero h1 {
    font-size: 42px;
    margin-bottom: 24px;
    font-weight: 600;
}

.hero p {
    font-size: 18px;
    color: #4b5563;
}
.hero-inner {
    display: flex;
    align-items: center;
    gap: 48px;
}

.hero-text {
    overflow-wrap: anywhere;
    flex: 1;
}

.hero-image {
    flex: 00 40%;
    display: flex;
    justify-content: flex-end;
}

.hero-image img {
    width: 100%;
    max-width: 420px;
    height: auto;
    border-radius: 8px;
    object-fit: cover;
    display: block;
}

/* 小屏幕自动变成上下 */
@media (max-width: 900px) {
    .hero-inner {
        flex-direction: column;
    }
}

@media (max-width: 900px) {
    .hero-image img {
        max-width: 320px;
    }
}

/* Sections */
.section {
    padding: 90px 0;
}

.section-light {
    background: #f9fafb;
}

.section h2 {
    font-size: 32px;
    margin-bottom: 28px;
    font-weight: 600;
}

.section p {
    max-width: 720px;
    margin-bottom: 18px;
    color: #374151;
}

/* Services */
.services-list {
    margin-top: 20px;
    list-style: none;
    max-width: 720px;
}

.services-list li {
    padding: 16px 20px;
    margin-bottom: 12px;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
}

/* Footer */
.footer {
    background: #111827;
    color: #9ca3af;
    padding: 50px 0;
    font-size: 14px;
}

.footer a {
    color: #9ca3af;
    text-decoration: none;
}

.footer a:hover {
    color: #ffffff;
}

.language-switch {
    position: relative;
    display: inline-block;
    margin-left: 28px;
    font-size: 15px;
    color: #374151;
    cursor: pointer;
}

.language-switch span {
    user-select: none;
}

.language-dropdown {
    display: none;
    position: absolute;
    top: 28px;
    right: 0;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    min-width: 140px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    z-index: 100;
}

.language-dropdown a {
    display: block;
    padding: 10px 14px;
    text-decoration: none;
    color: #374151;
    font-size: 14px;
}

.language-dropdown a:hover {
    background: #f9fafb;
}

.language-switch:hover .language-dropdown {
    display: block;
}