/* ===========================
   河南宇迪机电设备有限公司 - 官网样式
   配色：深邃蓝黑 + 典雅金色
   =========================== */

:root {
    --color-primary: #0a2540;
    --color-primary-light: #1a4d8c;
    --color-accent: #c9a961;
    --color-accent-dark: #a88a45;
    --color-bg: #ffffff;
    --color-bg-alt: #f7f8fa;
    --color-bg-dark: #0a2540;
    --color-text: #1a1a2e;
    --color-text-light: #5a6c7d;
    --color-border: #e4e8ee;
    --color-white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.06);
    --shadow-md: 0 6px 24px rgba(10, 37, 64, 0.1);
    --shadow-lg: 0 12px 40px rgba(10, 37, 64, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
    --header-height: 72px;
}

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

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

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

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

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

ul {
    list-style: none;
}

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

/* ===========================
   顶部导航栏
   =========================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: var(--transition);
}

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

.nav {
    max-width: var(--max-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
}

.logo-mark {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 22px;
    font-weight: 800;
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text .name {
    font-size: 16px;
    color: var(--color-primary);
    letter-spacing: 0.5px;
}

.logo-text .sub {
    font-size: 11px;
    color: var(--color-text-light);
    letter-spacing: 2px;
    text-transform: uppercase;
}

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

.nav-menu a {
    padding: 8px 18px;
    font-size: 15px;
    color: var(--color-text);
    font-weight: 500;
    border-radius: 6px;
    position: relative;
}

.nav-menu a:hover {
    color: var(--color-primary-light);
}

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

.nav-menu a.active::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 18px;
    right: 18px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
}

.nav-cta {
    margin-left: 12px;
    padding: 9px 22px !important;
    background: var(--color-primary);
    color: var(--color-white) !important;
    border-radius: 6px;
    font-weight: 500;
}

.nav-cta:hover {
    background: var(--color-primary-light);
    color: var(--color-white) !important;
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

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

/* ===========================
   通用区块
   =========================== */
.section {
    padding: 90px 0;
}

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

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 56px;
}

.section-label {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 3px;
    color: var(--color-accent-dark);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 14px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.8;
}

.section-title::after {
    content: "";
    display: block;
    width: 48px;
    height: 3px;
    background: var(--color-accent);
    margin: 20px auto 0;
    border-radius: 2px;
}

.section-header.left {
    text-align: left;
    margin-left: 0;
}

.section-header.left .section-title::after {
    margin-left: 0;
}

/* ===========================
   按钮
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 30px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    letter-spacing: 0.5px;
}

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

.btn-primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-accent:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: 1.5px solid rgba(255, 255, 255, 0.5);
}

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

.btn-lg {
    padding: 16px 38px;
    font-size: 16px;
}

/* ===========================
   首页 Hero
   =========================== */
.hero {
    position: relative;
    min-height: 640px;
    padding: 140px 0 100px;
    background: linear-gradient(135deg, #0a2540 0%, #143a63 50%, #1a4d8c 100%);
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(201, 169, 97, 0.12) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(26, 77, 140, 0.3) 0%, transparent 45%);
}

.hero::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.04;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.5) 1px, transparent 1px);
    background-size: 50px 50px;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 16px;
    background: rgba(201, 169, 97, 0.15);
    border: 1px solid rgba(201, 169, 97, 0.3);
    border-radius: 30px;
    color: var(--color-accent);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 28px;
}

.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: 52px;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.25;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.hero h1 .highlight {
    color: var(--color-accent);
}

.hero-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.78);
    line-height: 1.9;
    margin-bottom: 40px;
    max-width: 580px;
}

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

.hero-stats {
    position: relative;
    z-index: 2;
    display: flex;
    gap: 56px;
    margin-top: 64px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-stat .num {
    font-size: 38px;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1;
}

.hero-stat .num .plus {
    color: var(--color-accent);
}

.hero-stat .label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 8px;
    letter-spacing: 1px;
}

/* ===========================
   业务范围卡片
   =========================== */
.business-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.business-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 36px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.business-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

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

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

.business-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(10, 37, 64, 0.06), rgba(26, 77, 140, 0.1));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
    color: var(--color-primary);
    font-size: 26px;
    transition: var(--transition);
}

.business-card:hover .business-icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-accent);
}

.business-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.business-card p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===========================
   公司优势
   =========================== */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.advantage-item {
    text-align: center;
    padding: 20px;
}

.advantage-num {
    font-size: 44px;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 18px;
    opacity: 0.85;
}

.advantage-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.advantage-item p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ===========================
   关于简介区块
   =========================== */
.about-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-preview-image {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    box-shadow: var(--shadow-lg);
}

.about-preview-image .pattern {
    position: absolute;
    inset: 0;
    opacity: 0.08;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.5) 1px, transparent 1px);
    background-size: 40px 40px;
}

.about-preview-image .center-mark {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    text-align: center;
}

.about-preview-image .center-mark .big {
    font-size: 72px;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
}

.about-preview-image .center-mark .text {
    font-size: 16px;
    letter-spacing: 4px;
    margin-top: 12px;
    opacity: 0.8;
}

.about-preview-image .badge-tag {
    position: absolute;
    top: 24px;
    left: 24px;
    padding: 6px 14px;
    background: rgba(201, 169, 97, 0.2);
    border: 1px solid rgba(201, 169, 97, 0.4);
    border-radius: 4px;
    color: var(--color-accent);
    font-size: 12px;
    letter-spacing: 1px;
}

.about-preview-content h2 {
    font-size: 34px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 20px;
    line-height: 1.3;
}

.about-preview-content p {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.9;
    margin-bottom: 18px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 28px 0 36px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: var(--color-text);
    font-weight: 500;
}

.about-feature .check {
    width: 22px;
    height: 22px;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 12px;
    flex-shrink: 0;
}

/* ===========================
   CTA 区块
   =========================== */
.cta {
    position: relative;
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    overflow: hidden;
}

.cta::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(201, 169, 97, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 85% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 40%);
}

.cta-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.cta-text h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 12px;
}

.cta-text p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
}

.cta-phone {
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 20px 28px;
}

.cta-phone .icon {
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 22px;
}

.cta-phone .info .label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 2px;
}

.cta-phone .info .num {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 1px;
}

/* ===========================
   页面横幅（内页）
   =========================== */
.page-banner {
    position: relative;
    padding: 150px 0 70px;
    background: linear-gradient(135deg, #0a2540 0%, #143a63 100%);
    overflow: hidden;
}

.page-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 80% 20%, rgba(201, 169, 97, 0.12) 0%, transparent 40%);
    opacity: 0.5;
}

.page-banner::after {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0.04;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.5) 1px, transparent 1px);
    background-size: 50px 50px;
}

.page-banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.page-banner h1 {
    font-size: 42px;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 14px;
    letter-spacing: 1px;
}

.page-banner .breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.page-banner .breadcrumb a:hover {
    color: var(--color-accent);
}

.page-banner .breadcrumb .sep {
    opacity: 0.4;
}

.page-banner .breadcrumb .current {
    color: var(--color-accent);
}

/* ===========================
   关于我们页面
   =========================== */
.company-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.info-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
}

.info-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.info-card .icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 18px;
    background: linear-gradient(135deg, rgba(10, 37, 64, 0.06), rgba(26, 77, 140, 0.1));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 24px;
}

.info-card .label {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.info-card .value {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-primary);
}

/* 公司简介 */
.about-intro {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 56px;
    align-items: start;
}

.about-intro-text h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 24px;
    line-height: 1.3;
}

.about-intro-text p {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 2;
    margin-bottom: 18px;
}

.about-intro-text .quote {
    border-left: 3px solid var(--color-accent);
    padding: 16px 24px;
    background: var(--color-bg-alt);
    border-radius: 0 8px 8px 0;
    margin: 24px 0;
    font-size: 15px;
    color: var(--color-text);
    font-style: italic;
}

.about-intro-side {
    background: var(--color-bg-alt);
    border-radius: 16px;
    padding: 36px;
    border: 1px solid var(--color-border);
}

.about-intro-side h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--color-border);
}

.detail-list li {
    display: flex;
    justify-content: space-between;
    padding: 13px 0;
    border-bottom: 1px dashed var(--color-border);
    font-size: 14px;
}

.detail-list li:last-child {
    border-bottom: none;
}

.detail-list .key {
    color: var(--color-text-light);
}

.detail-list .val {
    color: var(--color-text);
    font-weight: 500;
    text-align: right;
}

/* 企业文化 */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.culture-card {
    text-align: center;
    padding: 44px 32px;
    background: var(--color-bg);
    border-radius: 16px;
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

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

.culture-card .icon-circle {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 30px;
}

.culture-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.culture-card .sub {
    font-size: 13px;
    color: var(--color-accent-dark);
    letter-spacing: 2px;
    margin-bottom: 14px;
    text-transform: uppercase;
}

.culture-card p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* 经营范围 */
.scope-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.scope-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 22px 24px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    transition: var(--transition);
}

.scope-item:hover {
    border-color: var(--color-accent);
    background: var(--color-bg-alt);
    transform: translateX(4px);
}

.scope-item .num {
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: var(--color-accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

.scope-item .content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.scope-item .content p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ===========================
   联系我们页面
   =========================== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: start;
}

.contact-info-card {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: 16px;
    padding: 44px 36px;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.contact-info-card::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -30%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(201, 169, 97, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.contact-info-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
}

.contact-info-card .desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 36px;
    position: relative;
}

.contact-info-list {
    position: relative;
}

.contact-info-item {
    display: flex;
    gap: 18px;
    margin-bottom: 28px;
}

.contact-info-item .icon {
    width: 46px;
    height: 46px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 20px;
    flex-shrink: 0;
}

.contact-info-item .text .label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 4px;
}

.contact-info-item .text .value {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-white);
    line-height: 1.6;
}

.contact-info-item .text .value.phone {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--color-accent);
}

/* 联系表单 */
.contact-form {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 44px 40px;
    box-shadow: var(--shadow-sm);
}

.contact-form h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.contact-form .form-desc {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 32px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-group label .required {
    color: #e63946;
}

.form-control {
    width: 100%;
    padding: 13px 16px;
    font-size: 15px;
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-bg-alt);
    border: 1.5px solid transparent;
    border-radius: 8px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    background: var(--color-bg);
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 3px rgba(26, 77, 140, 0.1);
}

.form-control::placeholder {
    color: #a0aab5;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-submit {
    width: 100%;
    padding: 15px;
    font-size: 16px;
    justify-content: center;
    margin-top: 8px;
}

/* 地图区 */
.map-section {
    background: var(--color-bg-alt);
}

.map-wrap {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--color-white);
    border: 1px solid var(--color-border);
}

.map-placeholder {
    width: 100%;
    height: 420px;
    background: linear-gradient(135deg, #e8edf3, #d6dde6);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    color: var(--color-text-light);
}

.map-placeholder .pin {
    width: 56px;
    height: 56px;
    background: var(--color-primary);
    border-radius: 50% 50% 50% 0;
    transform: rotate(-45deg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-md);
    animation: bounce 2s infinite;
}

.map-placeholder .pin span {
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 100% { transform: rotate(-45deg) translateY(0); }
    50% { transform: rotate(-45deg) translateY(-8px); }
}

.map-placeholder .addr {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 6px;
}

.map-placeholder .hint {
    font-size: 13px;
    color: var(--color-text-light);
}

/* ===========================
   页脚
   =========================== */
.footer {
    background: #061a30;
    color: rgba(255, 255, 255, 0.7);
    padding: 70px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-text .name {
    color: var(--color-white);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.55);
    max-width: 320px;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 22px;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
}

.footer-col ul li a:hover {
    color: var(--color-accent);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.6;
}

.footer-contact li .icon {
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 3px;
}

.footer-contact li .phone-num {
    color: var(--color-accent);
    font-size: 18px;
    font-weight: 600;
}

.footer-bottom {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a:hover {
    color: var(--color-accent);
}

/* ===========================
   动画
   =========================== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ===========================
   响应式
   =========================== */
@media (max-width: 992px) {
    .business-grid,
    .advantage-grid,
    .company-info-grid,
    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .about-preview,
    .about-intro,
    .contact-layout {
        grid-template-columns: 1fr;
    }
    .scope-list {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
    .hero h1 {
        font-size: 40px;
    }
    .section-title {
        font-size: 30px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 20px;
        gap: 4px;
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        transition: var(--transition);
        align-items: stretch;
    }
    .nav-menu.open {
        transform: translateY(0);
    }
    .nav-menu a {
        padding: 12px 16px;
        border-radius: 8px;
    }
    .nav-menu a.active::after {
        display: none;
    }
    .nav-cta {
        margin-left: 0;
        text-align: center;
    }
    .nav-toggle {
        display: flex;
    }
    .section {
        padding: 60px 0;
    }
    .hero {
        min-height: auto;
        padding: 120px 0 70px;
    }
    .hero h1 {
        font-size: 32px;
    }
    .hero-desc {
        font-size: 16px;
    }
    .hero-stats {
        gap: 28px;
        flex-wrap: wrap;
    }
    .hero-stat .num {
        font-size: 30px;
    }
    .business-grid,
    .advantage-grid,
    .company-info-grid,
    .culture-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .about-features {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .section-title,
    .page-banner h1 {
        font-size: 26px;
    }
    .cta-content {
        flex-direction: column;
        text-align: center;
    }
    .contact-form,
    .contact-info-card {
        padding: 32px 24px;
    }
    .container {
        padding: 0 20px;
    }
}