/* ========================================
   ACT LOGISTICS - Global Styles
   ======================================== */

/* CSS Variables */
:root {
    --primary-color: #003366;
    --secondary-color: #0066cc;
    --accent-color: #00a3e0;
    --dark-bg: #001a33;
    --light-bg: #f5f7fa;
    --text-dark: #333333;
    --text-light: #666666;
    --white: #ffffff;
    --border-color: #e0e6ed;
    --success-color: #28a745;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

ul {
    list-style: none;
}

/* Navigation */
.navbar { padding: 12px 0;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    min-height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    position: relative;
}

/* 导航 logo：已裁切为紧贴内容的横版图（455x219），常规流式布局，不再用绝对定位偏移 */
.logo img {
    height: 56px;
    width: auto;
    display: block;
}

.logo-text {
    color: var(--secondary-color) !important;
    font-weight: 700;
    font-size: 1.4rem;
    white-space: nowrap;
}

.logo i {
    color: var(--secondary-color);
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-dark);
    transition: color 0.3s;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--secondary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background:
        linear-gradient(135deg, rgba(0, 51, 102, 0.85) 0%, rgba(0, 26, 51, 0.92) 100%),
        url('images/hero_ship.jpg') center/cover no-repeat;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 20px 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="0.5"/></svg>');
    background-size: 200px 200px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 10px;
    letter-spacing: 3px;
}

.tagline {
    font-size: 1.8rem;
    color: var(--accent-color);
    margin-bottom: 10px;
    font-weight: 300;
}

.sub-tagline {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 102, 204, 0.4);
}

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

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

/* Section Styling */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--secondary-color);
    margin: 20px auto 0;
}

/* Services Overview */
.services-overview {
    background: var(--light-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.service-icon i {
    font-size: 2rem;
    color: var(--white);
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.service-card p {
    color: var(--text-light);
}

/* Why Choose Us */
.why-choose-us {
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-item {
    text-align: center;
    padding: 30px;
}

.feature-item i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.feature-item h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.feature-item p {
    color: var(--text-light);
}

/* Stats Section */
.stats {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-bg) 100%);
    color: var(--white);
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* CTA Section */
.cta {
    background: var(--light-bg);
    text-align: center;
}

.cta h2 {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.cta p {
    color: var(--text-light);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

/* Footer */

/* 页脚 logo：刻意比导航 logo（56px）小一档。
   原因：白字在深色底上会"发胀"（视觉膨胀效应），做成一样大反而显得压过导航。 */
.footer-logo {
    height: 48px;
    width: auto;
    display: block;
    margin-bottom: 15px;
}

footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--accent-color);
    margin-bottom: 20px;
}

.footer-section h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-section ul li {
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s;
}

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

.footer-section i {
    margin-right: 10px;
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* ICP 备案号（工信部要求页脚展示，样式与版权行一致） */
.footer-bottom .beian {
    margin-top: 6px;
}

.footer-bottom .beian a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-bottom .beian a:hover {
    color: rgba(255, 255, 255, 0.85);
}

/* Page Header (for sub-pages) */
.page-header {
    background:
        linear-gradient(135deg, rgba(0, 51, 102, 0.88) 0%, rgba(0, 26, 51, 0.94) 100%),
        url('images/hero_ship.jpg') center/cover no-repeat;
    padding: 150px 0 80px;
    text-align: center;
}

.page-header h1 {
    color: var(--white);
    font-size: 2.8rem;
    margin-bottom: 15px;
}

.page-header p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.2rem;
}

/* Content Section */
.content-section {
    padding: 80px 0;
}

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

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

.content-text p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

.content-image {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.content-image i {
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.3);
}

/* 照片填满内容图框（object-fit 保证不变形裁切） */
.content-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
    transition: transform 0.4s ease;
}

.content-image img:hover {
    transform: scale(1.03);
}

/* Service List */
.service-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-item {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 30px;
    transition: all 0.3s;
}

.service-item:hover {
    border-color: var(--secondary-color);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.1);
}

.service-item h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-item h3 i {
    color: var(--secondary-color);
}

.service-item ul {
    margin-top: 15px;
}

.service-item ul li {
    padding: 8px 0;
    color: var(--text-light);
    border-bottom: 1px solid var(--border-color);
}

.service-item ul li:last-child {
    border-bottom: none;
}

.service-item ul li::before {
    content: '✓';
    color: var(--success-color);
    margin-right: 10px;
}

/* Contact Section —— 固定 2×2：第一行地址+营业时间，第二行电话+邮箱 */
.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.contact-card {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.contact-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.contact-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.contact-card p {
    color: var(--text-light);
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

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

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

/* Map placeholder */
.map-section {
    height: 400px;
    background: var(--light-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 60px;
    border-radius: 10px;
}

.map-section i {
    font-size: 5rem;
    color: var(--border-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .hamburger {
        display: block;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .tagline {
        font-size: 1.2rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

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

    .stat-number {
        font-size: 2.5rem;
    }

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

    /* 手机端：联系卡片恢复单列 */
    .contact-info {
        grid-template-columns: 1fr;
    }

    /* 手机端：文字在前，图片统一放下方 */
    .content-grid .content-text {
        order: 1;
    }

    .content-grid .content-image {
        order: 2;
    }

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

@media (max-width: 480px) {
    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .stat-number {
        font-size: 2rem;
    }
}