/* mirror_flow:p6_ai_generated */
:root {
    --primary: #1e5fbb;
    --primary-light: #3671c6;
    --primary-dark: #15458a;
    --primary-rgb: 30, 95, 187;
    --secondary: #1a3c6e;
    --accent: #c9a962;
    --accent-light: #d4b97a;
    --accent-dark: #a88a3f;
    --bg: #ffffff;
    --bg-alt: #f5f6f9;
    --bg-dark: #0f1f3d;
    --text: #2d2d2d;
    --text-light: #5a5a5a;
    --text-muted: #8a8a8a;
    --text-inverse: #ffffff;
    --border: #e0e4ea;
    --border-light: #eef0f4;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 16px;
    --transition: 0.3s ease;
    --transition-fast: 0.15s ease;
    --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-serif: "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", "Songti SC", Georgia, serif;
    --max-width: 1280px;
    --header-height: 80px;
    --header-height-mobile: 64px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-width: 320px;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border: 0;
}

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

a:hover {
    color: var(--primary-dark);
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--secondary);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.9rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 48px;
}

.section-title h2 {
    font-size: 2rem;
    color: var(--secondary);
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent);
    margin: 14px auto 0;
    border-radius: 2px;
}

.section-title p {
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 600px;
    margin: 16px auto 0;
}

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

/* ========== Header ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    transition: box-shadow var(--transition), transform var(--transition);
    height: var(--header-height);
}

.site-header.scrolled {
    box-shadow: var(--shadow);
}

.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 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo img {
    height: 44px;
    width: auto;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    letter-spacing: 0.5px;
    white-space: nowrap;
}

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

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.main-nav a {
    display: block;
    padding: 10px 18px;
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
    white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.06);
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--primary);
    font-size: 1rem;
    white-space: nowrap;
}

.header-phone-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(var(--primary-rgb), 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.header-phone-icon svg {
    width: 18px;
    height: 18px;
    fill: var(--primary);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    width: 40px;
    height: 40px;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

/* ========== Hero Banner ========== */
.hero-banner {
    margin-top: var(--header-height);
    position: relative;
    min-height: 520px;
    background: linear-gradient(135deg, var(--secondary) 0%, #0d2647 40%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-banner::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='0.03'%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-banner::after {
    content: '';
    position: absolute;
    right: -120px;
    top: 50%;
    transform: translateY(-50%);
    width: 460px;
    height: 460px;
    border-radius: 50%;
    background: rgba(var(--primary-rgb), 0.15);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    padding: 60px 0;
}

.hero-content h1 {
    font-size: 2.75rem;
    color: var(--text-inverse);
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 1px;
    line-height: 1.25;
}

.hero-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
    line-height: 1.8;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition);
    line-height: 1.4;
    white-space: nowrap;
    text-align: center;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.btn-primary:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(201, 169, 98, 0.35);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    color: #fff;
    transform: translateY(-2px);
}

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

.btn-white:hover {
    background: #f0f0f0;
    border-color: #f0f0f0;
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-sm {
    padding: 10px 22px;
    font-size: 0.9rem;
}

/* ========== Stats / Features Strip ========== */
.stats-strip {
    background: #fff;
    border-bottom: 1px solid var(--border-light);
    padding: 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.stat-item {
    text-align: center;
    padding: 32px 20px;
    border-right: 1px solid var(--border-light);
    transition: background var(--transition);
}

.stat-item:last-child {
    border-right: none;
}

.stat-item:hover {
    background: var(--bg-alt);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}

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

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

.service-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

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

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

.service-card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius);
    background: rgba(var(--primary-rgb), 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-card-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--primary);
}

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

.service-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0;
    line-height: 1.6;
}

/* ========== About Section ========== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

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

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

.about-image::after {
    content: '';
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 180px;
    height: 180px;
    border: 3px solid var(--accent);
    border-radius: var(--radius-lg);
    z-index: -1;
}

.about-text h2 {
    font-size: 1.85rem;
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 16px;
    line-height: 1.8;
}

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

.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: var(--text);
    font-size: 0.95rem;
}

.about-feature::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
}

/* ========== Team Section ========== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.team-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all var(--transition);
    text-align: center;
}

.team-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.team-card-image {
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: var(--bg-alt);
}

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

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

.team-card-info {
    padding: 20px 16px;
}

.team-card-info h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.team-card-info .role {
    font-size: 0.85rem;
    color: var