/* ============ 全局变量 ============ */
:root {
    --primary: #1e3a8a;
    --primary-light: #2563eb;
    --primary-dark: #1e3a6b;
    --accent: #f59e0b;
    --accent-light: #fbbf24;
    --dark: #0f172a;
    --dark-2: #1e293b;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --bg-card: #ffffff;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 30px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 50px -10px rgba(0,0,0,0.15);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--dark);
    background: var(--bg);
    line-height: 1.7;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    background: none;
}

/* ============ 通用 ============ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
    position: relative;
}

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

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

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--primary-light);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-desc {
    font-size: 16px;
    color: var(--gray);
    max-width: 640px;
    margin: 0 auto;
}

.text-bold {
    font-weight: 700;
    color: var(--dark);
}

.text-highlight {
    color: var(--primary-light);
    font-weight: 700;
}

/* ============ 按钮 ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
}

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

.btn-outline:hover {
    background: white;
    color: var(--primary);
    border-color: white;
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* ============ 导航栏 ============ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255,255,255,0.98);
    border-bottom-color: var(--border);
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 20px;
    color: var(--dark);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 1px;
    box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

.logo-text {
    letter-spacing: -0.5px;
}

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

.nav-link {
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--dark-2);
    border-radius: var(--radius-sm);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-light);
    background: rgba(37,99,235,0.06);
}

.nav-link.active {
    color: var(--primary);
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.nav-cta {
    padding: 10px 24px;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(37,99,235,0.3);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============ Hero ============ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    color: white;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #2563eb 100%);
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(37,99,235,0.3) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(245,158,11,0.15) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(99,102,241,0.1) 0%, transparent 50%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 120px 24px 80px;
    animation: fadeInUp 1s ease;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 60px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255,255,255,0.85);
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 80px;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 32px;
    background: rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.12);
}

.stat-item {
    flex: 1;
    text-align: center;
    padding: 0 16px;
}

.stat-number {
    font-size: 42px;
    font-weight: 900;
    color: white;
    line-height: 1;
    margin-bottom: 8px;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 50px;
    background: rgba(255,255,255,0.15);
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.5);
    font-size: 12px;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid rgba(255,255,255,0.4);
    border-bottom: 2px solid rgba(255,255,255,0.4);
    transform: rotate(45deg);
}

/* ============ 产品中心 ============ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 60px;
}

.product-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 36px 32px;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary);
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

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

.product-icon {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.product-icon svg {
    width: 30px;
    height: 30px;
}

.product-name {
    font-size: 24px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 4px;
}

.product-tagline {
    font-size: 14px;
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 16px;
}

.product-desc {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.product-features {
    margin-bottom: 20px;
}

.product-features li {
    font-size: 14px;
    color: var(--dark-2);
    padding: 4px 0 4px 24px;
    position: relative;
}

.product-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 4px;
    color: var(--primary-light);
    font-weight: 700;
}

.product-target {
    display: inline-block;
    font-size: 12px;
    color: var(--gray);
    background: var(--bg-alt);
    padding: 6px 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-weight: 500;
}

.product-btn {
    width: 100%;
    padding: 12px;
    background: var(--bg-alt);
    color: var(--primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

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

/* 其他品牌 */
.other-brands {
    text-align: center;
    padding: 40px;
    background: var(--bg-alt);
    border-radius: var(--radius);
}

.brands-title {
    font-size: 16px;
    color: var(--gray);
    margin-bottom: 20px;
    font-weight: 600;
}

.brands-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.brand-tag {
    padding: 8px 20px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark-2);
    transition: var(--transition);
}

.brand-tag:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-2px);
}

.logo-icon svg {
    width: 26px;
    height: 22px;
}

.logo-icon path {
    fill: white;
}

/* ============ 用友授权证书 ============ */
.auth-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #b91c1c, #dc2626, #b91c1c);
}

.auth-badge {
    display: inline-block;
    padding: 6px 18px;
    background: linear-gradient(135deg, #b91c1c, #dc2626);
    color: white;
    font-size: 13px;
    font-weight: 700;
    border-radius: 6px;
    margin-bottom: 24px;
    letter-spacing: 2px;
}

.auth-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: start;
}

.auth-cert {
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--bg-alt);
}

.cert-img {
    width: 100%;
    display: block;
    border-radius: var(--radius-sm);
}

.auth-company {
    font-size: 22px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 8px;
}

.auth-desc {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 24px;
    line-height: 1.6;
}

.auth-details {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.auth-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
}

.auth-row:last-child {
    border-bottom: none;
}

.auth-label {
    font-size: 14px;
    color: var(--gray);
    font-weight: 500;
    white-space: nowrap;
}

.auth-value {
    font-size: 14px;
    color: var(--dark);
    font-weight: 700;
    text-align: right;
}

.auth-right {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    padding-top: 20px;
}

.auth-seal {
    text-align: center;
}

.seal-ring {
    width: 120px;
    height: 120px;
    margin: 0 auto 12px;
}

.seal-ring svg {
    width: 100%;
    height: 100%;
}

.seal-text {
    font-size: 13px;
    color: var(--gray);
    font-weight: 600;
    max-width: 140px;
    line-height: 1.4;
}

.auth-qr {
    width: 120px;
    height: 120px;
    background: var(--bg-alt);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed var(--border);
}

.qr-placeholder {
    font-size: 12px;
    color: var(--gray-light);
    text-align: center;
    padding: 8px;
    line-height: 1.4;
}

.auth-trust {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark-2);
}

.trust-icon {
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
}

/* ============ 客户案例 ============ */
.cases-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.case-stat-card {
    text-align: center;
    padding: 40px 20px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 3px solid var(--primary);
}

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

.case-stat-num {
    font-size: 48px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
    font-variant-numeric: tabular-nums;
}

.case-stat-label {
    font-size: 15px;
    color: var(--gray);
    font-weight: 500;
}

/* 行业覆盖 */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.industry-card {
    background: white;
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--border);
    transition: var(--transition);
    text-align: center;
}

.industry-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.industry-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.industry-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.industry-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
}

/* 服务流程 */
.service-flow {
    background: white;
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow);
}

.flow-title {
    text-align: center;
    font-size: 24px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 40px;
}

.flow-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.flow-step {
    flex: 1;
    text-align: center;
    padding: 24px 16px;
    background: var(--bg-alt);
    border-radius: var(--radius);
    transition: var(--transition);
}

.flow-step:hover {
    background: rgba(37,99,235,0.05);
}

.step-num {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    margin: 0 auto 16px;
}

.step-content h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
}

.step-content p {
    font-size: 13px;
    color: var(--gray);
}

.flow-arrow {
    font-size: 20px;
    color: var(--gray-light);
    font-weight: 300;
}

/* ============ 关于我们 ============ */
.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 48px;
    margin-bottom: 60px;
}

.about-text {
    padding-right: 20px;
}

.about-paragraph {
    font-size: 15px;
    line-height: 2;
    color: var(--dark-2);
    margin-bottom: 20px;
}

.about-side {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.info-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.info-card-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    padding: 16px 24px;
}

.info-card-header h4 {
    color: white;
    font-size: 16px;
    font-weight: 700;
}

.info-card-body {
    padding: 20px 24px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    gap: 16px;
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    font-size: 14px;
    color: var(--gray);
    font-weight: 500;
    white-space: nowrap;
    flex-shrink: 0;
}

.info-value {
    font-size: 14px;
    color: var(--dark);
    font-weight: 600;
    text-align: right;
}

/* 核心优势 */
.advantages {
    margin-bottom: 60px;
}

.adv-title {
    text-align: center;
    font-size: 28px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 40px;
}

.adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.adv-card {
    background: white;
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.adv-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.adv-icon {
    width: 44px;
    height: 44px;
    background: rgba(37,99,235,0.1);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.adv-card h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.adv-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
}

/* 企业文化 */
.culture-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 60px;
}

.culture-card {
    padding: 48px;
    border-radius: var(--radius);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.culture-card::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 120px;
    font-family: Georgia, serif;
    opacity: 0.1;
}

.culture-vision {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

.culture-philosophy {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
}

.culture-label {
    font-size: 14px;
    font-weight: 600;
    color: rgba(255,255,255,0.8);
    margin-bottom: 16px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.culture-text {
    font-size: 28px;
    font-weight: 800;
    color: white;
    letter-spacing: 1px;
}

/* 人才理念 */
.hr-section {
    text-align: center;
    padding: 48px;
    background: var(--bg-alt);
    border-radius: var(--radius-lg);
}

.hr-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 20px;
}

.hr-quote {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
    font-style: italic;
}

.hr-desc {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto;
}

/* 企业标语墙 */
.wall-mottos {
    background: white;
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 60px;
    text-align: center;
}

.motto-item {
    margin-bottom: 28px;
}

.motto-item:last-child {
    margin-bottom: 0;
}

.motto-large {
    font-size: 28px;
    font-weight: 900;
    color: var(--dark);
    letter-spacing: 2px;
    line-height: 1.4;
}

.motto-sep {
    color: var(--primary-light);
    padding: 0 8px;
}

.motto-compete {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    padding: 20px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.motto-word {
    color: var(--gray);
}

.motto-strong {
    color: var(--primary);
    font-weight: 900;
    font-size: 26px;
}

.motto-values {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    padding-top: 8px;
}

.value-tag {
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 700;
    color: white;
}

.value-blue {
    background: linear-gradient(135deg, #2563eb, #1e3a8a);
}

.value-gold {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.value-teal {
    background: linear-gradient(135deg, #10b981, #047857);
}

.value-purple {
    background: linear-gradient(135deg, #8b5cf6, #6d28d9);
}

.motto-slogan p {
    font-size: 16px;
    color: var(--gray);
    font-style: italic;
    font-weight: 500;
}

/* ============ 公司环境 ============ */
.env-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.env-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.env-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.env-card.env-large {
    grid-column: span 2;
    grid-row: span 1;
}

.env-img {
    position: relative;
    width: 100%;
    padding-bottom: 65%;
    overflow: hidden;
}

.env-real-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.env-card:hover .env-real-img {
    transform: scale(1.05);
}

.env-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.env-office {
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
}

.env-meeting {
    background: linear-gradient(135deg, #0f766e, #14b8a6);
}

.env-team {
    background: linear-gradient(135deg, #7c3aed, #8b5cf6);
}

.env-culture {
    background: linear-gradient(135deg, #c2410c, #f97316);
}

.env-training {
    background: linear-gradient(135deg, #0369a1, #0ea5e9);
}

.env-icon {
    font-size: 48px;
}

.env-label {
    font-size: 14px;
    color: white;
    font-weight: 700;
    text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

.env-caption {
    padding: 20px 24px;
}

.env-caption h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.env-caption p {
    font-size: 13px;
    color: var(--gray);
}

/* ============ 联系我们 ============ */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: white;
    padding: 28px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.contact-icon {
    font-size: 28px;
    width: 56px;
    height: 56px;
    background: rgba(37,99,235,0.08);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-detail h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.contact-detail p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
}

.contact-phone {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.contact-phone:hover {
    color: var(--primary-light);
}

/* 联系表单 */
.contact-form-wrap {
    background: white;
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.form-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    color: var(--dark);
    transition: var(--transition);
    background: var(--bg-alt);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    background: white;
    box-shadow: 0 0 0 4px rgba(37,99,235,0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-note {
    text-align: center;
    font-size: 13px;
    color: var(--gray-light);
    margin-top: 12px;
}

/* ============ 页脚 ============ */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    color: white;
    font-weight: 800;
    font-size: 20px;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
    max-width: 360px;
}

.footer-slogan {
    font-size: 16px;
    font-weight: 600;
    color: var(--accent);
}

.footer-col h5 {
    color: white;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a,
.footer-col ul li {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

/* ============ 产品详情弹窗 ============ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: white;
    border-radius: var(--radius-lg);
    max-width: 680px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 48px;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-xl);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-alt);
    font-size: 24px;
    color: var(--gray);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--dark);
    color: white;
    transform: rotate(90deg);
}

.modal-product-name {
    font-size: 28px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 4px;
}

.modal-product-tag {
    font-size: 16px;
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 20px;
}

.modal-section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    margin: 24px 0 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border);
}

.modal-feature-list {
    list-style: none;
}

.modal-feature-list li {
    padding: 8px 0 8px 28px;
    position: relative;
    font-size: 15px;
    color: var(--dark-2);
    line-height: 1.6;
}

.modal-feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 8px;
    color: var(--primary-light);
    font-weight: 700;
}

.modal-scenario {
    background: var(--bg-alt);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin-top: 16px;
}

.modal-scenario h5 {
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.modal-scenario p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
}

.modal-cta {
    margin-top: 28px;
    padding: 16px;
    background: linear-gradient(135deg, rgba(37,99,235,0.06), rgba(245,158,11,0.06));
    border-radius: var(--radius-sm);
    text-align: center;
}

.modal-cta p {
    font-size: 14px;
    color: var(--dark-2);
    margin-bottom: 12px;
}

.modal-cta .btn {
    width: 100%;
}

/* ============ Toast ============ */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--dark);
    color: white;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    z-index: 3000;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-xl);
    pointer-events: none;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.success {
    background: #059669;
}

.toast.error {
    background: #dc2626;
}

/* ============ 动画 ============ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============ 响应式 ============ */
@media (max-width: 968px) {
    .hero-title {
        font-size: 42px;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 16px;
    }

    .stat-item {
        flex: 1 1 40%;
    }

    .stat-divider {
        display: none;
    }

    .product-grid,
    .industry-grid,
    .adv-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cases-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .auth-content {
        grid-template-columns: 1fr;
    }

    .auth-trust {
        flex-wrap: wrap;
        gap: 16px;
    }

    .env-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .env-card.env-large {
        grid-column: span 2;
    }

    .wall-mottos {
        padding: 32px 24px;
    }

    .motto-large {
        font-size: 22px;
    }

    .motto-strong {
        font-size: 22px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .flow-steps {
        flex-wrap: wrap;
    }

    .flow-arrow {
        display: none;
    }

    .flow-step {
        flex: 1 1 40%;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 4px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
    }

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

    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
        padding: 0 20px;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-stats {
        padding: 20px;
    }

    .stat-number {
        font-size: 28px;
    }

    .product-grid,
    .industry-grid,
    .adv-grid,
    .cases-stats {
        grid-template-columns: 1fr;
    }

    .auth-card {
        padding: 28px 20px;
    }

    .auth-right {
        flex-direction: row;
        justify-content: center;
        padding-top: 0;
    }

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

    .env-card.env-large {
        grid-column: span 1;
    }

    .wall-mottos {
        padding: 24px 16px;
    }

    .motto-large {
        font-size: 18px;
    }

    .motto-compete {
        font-size: 18px;
    }

    .motto-strong {
        font-size: 20px;
    }

    .culture-section {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .modal-content {
        padding: 32px 24px;
    }

    .service-flow {
        padding: 24px;
    }

    .flow-step {
        flex: 1 1 100%;
    }

    .culture-card {
        padding: 32px 20px;
    }

    .culture-text {
        font-size: 22px;
    }
}