/* mirror_flow:p6_ai_generated */
:root {
    --color-primary: #1e5b9c;
    --color-primary-light: #3578c7;
    --color-primary-dark: #1b4f8a;
    --color-white: #ffffff;
    --color-bg: #f4f4f4;
    --color-text: #333333;
    --color-text-light: #555555;
    --color-text-muted: #777777;
    --color-border: #e0e0e0;
    --color-footer-bg: #1a1a1a;
    --color-footer-text: #cccccc;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.15);
    --transition: 0.3s ease;
    --max-width: 1200px;
    --header-height: 72px;
}

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

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

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    min-width: 320px;
}

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

ul,
li {
    list-style: none;
}

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    text-align: center;
    margin-bottom: 8px;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-bottom: 48px;
}

.section-title::after {
    content: "";
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--color-primary);
    margin: 12px auto 0;
    border-radius: 2px;
}

/* ==================== HEADER ==================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-white);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    height: var(--header-height);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
    white-space: nowrap;
}

.logo img {
    height: 42px;
    width: auto;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: 8px;
}

.nav-list a {
    display: block;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition), color var(--transition);
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--color-primary);
    background-color: rgba(30, 91, 156, 0.06);
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-phone {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
    white-space: nowrap;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 26px;
    height: 2.5px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==================== HERO ==================== */
.hero {
    position: relative;
    background: linear-gradient(135deg, #0d3b66 0%, #1e5b9c 50%, #1b4f8a 100%);
    color: var(--color-white);
    min-height: 520px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 60px 20px;
}

.hero-content h1 {
    font-size: 2.6rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
}

.hero-content h1 span {
    color: #ffcc00;
}

.hero-desc {
    font-size: 1.15rem;
    line-height: 1.7;
    opacity: 0.9;
    margin-bottom: 32px;
    max-width: 480px;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
    white-space: nowrap;
}

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

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

.btn-outline {
    background-color: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.7);
}

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

.hero-stats {
    display: flex;
    gap: 24px;
    margin-top: 32px;
}

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

.hero-stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: #ffcc00;
}

.hero-stat-label {
    font-size: 0.85rem;
    opacity: 0.8;
    margin-top: 2px;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* ==================== SERVICES ==================== */
.services {
    padding: 80px 0;
    background-color: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 36px 28px;
    text-align: center;
    transition: all var(--transition);
    box-shadow: var(--shadow);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-primary-light);
}

.service-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #e8f0fa 0%, #d4e4f7 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-text);
}

.service-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ==================== ABOUT ==================== */
.about {
    padding: 80px 0;
    background-color: var(--color-bg);
}

.about-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    width: 100%;
}

.about-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--color-text);
}

.about-text h2::after {
    content: "";
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--color-primary);
    margin-top: 12px;
    border-radius: 2px;
}

.about-text p {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 24px;
}

.about-highlight {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--color-text);
}

.about-highlight::before {
    content: "✓";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    font-size: 0.8rem;
    flex-shrink: 0;
}

/* ==================== ADVANTAGES ==================== */
.advantages {
    padding: 80px 0;
    background-color: var(--color-white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.advantage-item {
    text-align: center;
    padding: 28px 16px;
}

.advantage-number {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 8px;
}

.advantage-label {
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

/* ==================== NEWS ==================== */
.news {
    padding: 80px 0;
    background-color: var(--color-bg);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.news-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.news-card-image {
    height: 200px;
    background-color: #e0e0e0;
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.news-card:hover .news-card-image img {
    transform: scale(1.05);
}

.news-card-body {
    padding: 20px;
}

.news-card-date {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.news-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.5;
    color: var(--color-text);
}

.news-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.news-card-link {
    display: inline-block;
    margin-top: 12px;
    font-weight: 600;
    color: var(--color-primary);
    font-size: 0.9rem;
}

.news-card-link:hover {
    color: var(--color-primary-dark);
}

/* ==================== CTA ==================== */
.cta-section {
    padding: 70px 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    text-align: center;
}

.cta-section h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-section p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 28px;
}

.cta-section .btn-primary {
    background-color: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
    font-size: 1.05rem;
    padding: 16px 36px;
}

.cta-section .btn-primary:hover {
    background-color: transparent;
    color: var(--color-white);
}

/* ==================== FOOTER ==================== */
.site-footer {
    background-color: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px 40px;
}

.footer-about p {
    margin: 16px 0;
    line-height: 1.8;
    font-size: 0.95rem;
}

.footer-about .logo {
    color: var(--color-white);
    font-size: 1.3rem;
}

.footer-col h4 {
    color: var(--color-white);
    font-size: 1.1rem;
    font-weight: