/* 巨海科技官网样式 - 现代化企业设计 */

/* ===== CSS 变量 ===== */
:root {
    --primary: #0a4f8b;
    --primary-dark: #073b6a;
    --primary-light: #1475c4;
    --accent: #00b8d4;
    --accent-warm: #ff6b35;
    --text: #1a1a2e;
    --text-light: #4a4a5a;
    --text-muted: #7a7a8a;
    --bg: #ffffff;
    --bg-light: #f5f7fa;
    --bg-dark: #0a1628;
    --border: #e2e8f0;
    --shadow: 0 4px 20px rgba(10, 79, 139, 0.08);
    --shadow-lg: 0 10px 40px rgba(10, 79, 139, 0.15);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s ease;
    --max-width: 1200px;
}

/* ===== 重置与基础 ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

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

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    gap: 8px;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(10, 79, 139, 0.3);
}

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(10, 79, 139, 0.4);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255,255,255,0.5);
}

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

.btn-full {
    width: 100%;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
    padding: 12px 0;
}

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

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

.logo-icon {
    font-size: 32px;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

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

.logo-name {
    font-size: 20px;
    font-weight: 700;
    color: white;
    letter-spacing: 1px;
    transition: var(--transition);
}

.navbar.scrolled .logo-name {
    color: var(--primary);
}

.logo-sub {
    font-size: 10px;
    font-weight: 500;
    color: rgba(255,255,255,0.7);
    letter-spacing: 2px;
    transition: var(--transition);
}

.navbar.scrolled .logo-sub {
    color: var(--text-muted);
}

.nav-menu {
    display: flex;
    gap: 4px;
}

.nav-link {
    padding: 8px 18px;
    font-size: 15px;
    color: rgba(255,255,255,0.85);
    border-radius: 50px;
    transition: var(--transition);
    font-weight: 400;
}

.nav-link:hover,
.nav-link.active {
    color: white;
    background: rgba(255,255,255,0.15);
}

.navbar.scrolled .nav-link {
    color: var(--text-light);
}

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
    color: var(--primary);
    background: rgba(10, 79, 139, 0.08);
}

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

.bar {
    width: 24px;
    height: 2px;
    background: white;
    transition: var(--transition);
    border-radius: 2px;
}

.navbar.scrolled .bar {
    background: var(--text);
}

/* ===== 英雄区 ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 50%, var(--accent) 100%);
    opacity: 0.95;
}

.hero-overlay {
    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");
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 24px;
}

.hero-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.title-line:nth-child(2) {
    animation-delay: 0.2s;
}

.hero-subtitle {
    font-size: clamp(16px, 2.5vw, 20px);
    color: rgba(255,255,255,0.8);
    margin-bottom: 40px;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.4s forwards;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.6s forwards;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.6);
    font-size: 12px;
    animation: bounce 2s ease infinite;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255,255,255,0.4);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: rgba(255,255,255,0.6);
    border-radius: 2px;
    animation: scroll 2s ease infinite;
}

/* ===== 统计数据 ===== */
.stats {
    background: var(--bg);
    padding: 60px 0;
    border-bottom: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
}

.stat-suffix {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    display: block;
    margin-top: 8px;
    font-size: 15px;
    color: var(--text-muted);
}

/* ===== 区块通用 ===== */
section {
    padding: 100px 0;
}

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

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

.section-header.light .section-tag,
.section-header.light .section-title,
.section-header.light .section-desc {
    color: white;
}

.section-header.light .section-desc {
    opacity: 0.8;
}

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

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
}

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

.section-header.left .section-desc {
    margin: 0;
}

/* ===== 关于我们 ===== */
.about {
    background: var(--bg-light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 20px;
}

.about-content p {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: white;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 24px;
}

.feature-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
}

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

.about-card {
    position: relative;
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-4px);
}

.card-accent {
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
}

.card-accent.accent-2 {
    background: var(--accent);
}

.card-content {
    padding: 28px 32px;
    padding-left: 36px;
}

.card-icon {
    font-size: 32px;
    display: block;
    margin-bottom: 12px;
}

.card-content h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

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

/* ===== 业务范围 ===== */
.services {
    background: var(--bg-dark);
    position: relative;
    overflow: hidden;
}

.services::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle, rgba(0, 184, 212, 0.08) 0%, transparent 70%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.service-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    padding: 40px 32px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.service-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(0, 184, 212, 0.3);
    transform: translateY(-4px);
}

.service-icon-wrap {
    width: 60px;
    height: 60px;
    background: rgba(0, 184, 212, 0.15);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: var(--transition);
}

.service-card:hover .service-icon-wrap {
    background: rgba(0, 184, 212, 0.25);
    transform: scale(1.1);
}

.service-icon {
    font-size: 28px;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: white;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--accent);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.service-link:hover {
    color: white;
    gap: 8px;
}

/* ===== 解决方案 ===== */
.products {
    background: var(--bg);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

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

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

.product-image {
    width: 200px;
    min-height: 200px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.product-img-icon {
    font-size: 64px;
    opacity: 0.8;
}

.product-info {
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    background: rgba(0, 184, 212, 0.1);
    padding: 4px 12px;
    border-radius: 50px;
    margin-bottom: 12px;
    align-self: flex-start;
}

.product-info h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

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

/* ===== 合作伙伴 ===== */
.partners {
    background: var(--bg-light);
    padding: 80px 0;
}

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

.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
    background: white;
    border-radius: var(--radius-sm);
    font-size: 18px;
    font-weight: 600;
    color: var(--text-muted);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.partner-logo:hover {
    color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===== 新闻动态 ===== */
.news {
    background: var(--bg);
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 24px;
}

.news-card {
    display: flex;
    gap: 24px;
    padding: 24px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.news-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--accent);
}

.news-card.featured {
    grid-row: 1 / 3;
    flex-direction: column;
}

.news-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 70px;
    padding: 16px;
    background: var(--primary);
    border-radius: var(--radius-sm);
    color: white;
    flex-shrink: 0;
}

.news-card.featured .news-date {
    flex-direction: row;
    gap: 8px;
    width: fit-content;
    padding: 12px 20px;
}

.day {
    font-size: 28px;
    font-weight: 900;
    line-height: 1;
}

.month {
    font-size: 13px;
    opacity: 0.8;
}

.news-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-card.featured .news-content {
    flex: 1;
}

.news-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 8px;
}

.news-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 12px;
}

.news-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    transition: var(--transition);
}

.news-link:hover {
    color: var(--accent);
    gap: 8px;
}

/* ===== 联系我们 ===== */
.contact {
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-top: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    font-size: 24px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    flex-shrink: 0;
}

.contact-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-item p {
    font-size: 15px;
    color: var(--text);
    font-weight: 500;
}

.contact-form-wrap {
    background: white;
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

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

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    color: var(--text);
    transition: var(--transition);
    background: var(--bg-light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(10, 79, 139, 0.1);
}

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

/* ===== 页脚 ===== */
.footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.7);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

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

.footer-brand .logo-name,
.footer-brand .logo-sub {
    color: white;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 280px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
    font-size: 18px;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--accent);
    transform: translateY(-2px);
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

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

.footer-links ul li a {
    font-size: 14px;
    transition: var(--transition);
    display: inline-block;
}

.footer-links ul li a:hover {
    color: var(--accent);
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

/* ===== 返回顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-light);
    transform: translateY(-4px);
}

/* ===== 动画 ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(12px);
    }
}

/* ===== 滚动动画类 ===== */
.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: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

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

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(255,255,255,0.98);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        color: var(--text) !important;
        padding: 12px 16px;
        display: block;
        border-radius: 0;
    }

    .nav-link:hover,
    .nav-link.active {
        background: var(--bg-light) !important;
        color: var(--primary) !important;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
    }

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

    .stat-number {
        font-size: 36px;
    }

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

    .product-card {
        flex-direction: column;
    }

    .product-image {
        width: 100%;
        min-height: 160px;
    }

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

    .news-card.featured {
        grid-row: auto;
    }

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

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

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

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

    section {
        padding: 60px 0;
    }

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

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

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

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

    .scroll-indicator {
        display: none;
    }
}


/* ===== 导航栏电话入口 ===== */
.nav-contact {
    display: flex;
    align-items: center;
    margin-left: 20px;
}
.nav-phone {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #1e88e5, #0d47a1);
    color: #fff;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}
.nav-phone:hover {
    background: linear-gradient(135deg, #1565c0, #0a3670);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(13, 71, 161, 0.3);
}
.phone-icon { font-size: 16px; }
.phone-number { font-size: 14px; letter-spacing: 0.5px; }

/* ===== 底部浮动CTA ===== */
.floating-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(90deg, #0d47a1, #1e88e5);
    padding: 12px 20px;
    z-index: 1000;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
    animation: slideUp 0.5s ease;
}
@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}
.floating-cta-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.cta-text {
    color: #fff;
    font-size: 16px;
    font-weight: 500;
}
.cta-btn {
    padding: 10px 24px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.cta-phone { background: #fff; color: #0d47a1; }
.cta-phone:hover { background: #f5f5f5; transform: translateY(-2px); }
.cta-form { background: #ff6b35; color: #fff; }
.cta-form:hover { background: #e55a2b; transform: translateY(-2px); }
.footer { padding-bottom: 80px; }

@media (max-width: 768px) {
    .nav-contact { display: none; }
    .floating-cta-content { flex-direction: column; gap: 10px; }
    .cta-text { font-size: 14px; text-align: center; }
    .cta-btn { padding: 8px 20px; font-size: 13px; }
    .footer { padding-bottom: 120px; }
}
@media (max-width: 480px) {
    .floating-cta { padding: 10px 15px; }
}


/* ===== Hero区域电话横幅 ===== */
.hero-phone-banner {
    margin-top: 30px;
    padding: 16px 30px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}
.phone-label {
    color: #fff;
    font-size: 16px;
}
.phone-number-large {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 1px;
}
.phone-number-large:hover {
    color: #64b5f6;
}
.btn-free-consult {
    padding: 10px 24px;
    background: #ff6b35;
    color: #fff;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
}
.btn-free-consult:hover {
    background: #e55a2b;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

/* ===== 服务板块CTA横幅 ===== */
.services-cta-banner {
    margin-top: 60px;
    padding: 50px 40px;
    background: linear-gradient(135deg, #0d47a1, #1565c0);
    border-radius: 20px;
    text-align: center;
    color: #fff;
}
.cta-banner-content h3 {
    font-size: 28px;
    margin-bottom: 15px;
}
.cta-banner-content p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 30px;
}
.btn-large {
    padding: 15px 40px;
    font-size: 16px;
}

/* ===== 服务卡片CTA ===== */
.service-cta {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(30, 136, 229, 0.2);
}
.service-cta p {
    font-size: 13px;
    color: #666;
    margin-bottom: 10px;
}
.service-cta .btn {
    display: inline-block;
    padding: 8px 20px;
    background: transparent;
    border: 2px solid #1e88e5;
    color: #1e88e5;
    border-radius: 20px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s ease;
}
.service-cta .btn:hover {
    background: #1e88e5;
    color: #fff;
}

@media (max-width: 768px) {
    .hero-phone-banner {
        flex-direction: column;
        padding: 15px 25px;
    }
    .phone-number-large {
        font-size: 20px;
    }
    .services-cta-banner {
        padding: 35px 25px;
    }
    .cta-banner-content h3 {
        font-size: 22px;
    }
}


/* ===== 联系区域优化 ===== */
.contact-highlight {
    margin-top: 20px;
    padding: 20px;
    background: rgba(30, 136, 229, 0.05);
    border-radius: 12px;
    border-left: 4px solid #1e88e5;
}
.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 14px;
    color: #555;
}
.highlight-item:last-child {
    margin-bottom: 0;
}
.highlight-icon {
    font-size: 18px;
}

/* 表单输入框优化 */
.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #999;
    font-size: 14px;
}
.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #1e88e5;
    box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.1);
}