/* =============================================
   江苏众诚国际物流有限公司 - 主样式表
   主色调: #2a3271 (深蓝)
   副色调: #da7521 (橙色)
   ============================================= */

/* 导入Logo样式 */
@import url('logo.css');

/* --- 基础样式 --- */
:root {
    --primary-color: #2a3271;
    --secondary-color: #da7521;
    --primary-light: #3a4291;
    --primary-dark: #1a2251;
    --secondary-light: #ea8531;
    --secondary-dark: #ca6511;
    --light-bg: #f5f7fa;
    --dark-text: #333333;
    --light-text: #666666;
    --white: #ffffff;
    --gray: #999999;
    --light-gray: #e9ecef;
    --border-color: #ddd;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-lg: 0 5px 20px rgba(0,0,0,0.15);
}

/* Fallback for browsers that don't support CSS custom properties */
body {
    color: #333333;
    background-color: #ffffff;
}

a {
    color: #2a3271;
}

a:hover {
    color: #da7521;
}

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

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: var(--white);
}

html {
    scroll-behavior: smooth;
}

/* Fallback for browsers that don't support scroll-behavior */
@media screen and (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

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

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }

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

.lead {
    font-size: 1.2rem;
    font-weight: 300;
}

/* --- Links --- */
a {
    color: var(--primary-color);
    text-decoration: none;
    -webkit-transition: color 0.3s ease;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

/* --- Buttons --- */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
    padding: 12px 28px;
    font-weight: 500;
    border-radius: 4px;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

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

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 10px 24px;
    font-weight: 500;
    border-radius: 4px;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

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

.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--white);
    padding: 12px 28px;
    font-weight: 500;
    border-radius: 4px;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: var(--secondary-light);
    border-color: var(--secondary-light);
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* --- Section Titles --- */
.section-title {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 200px;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary-dark), var(--secondary-light));
}

.section-subtitle {
    color: var(--light-text);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.text-center .section-title::after {
    left: 50%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
}

/* --- Navigation --- */
#mainNav {
    background-color: var(--primary-color);
    box-shadow: 0 8px 32px rgba(0,0,0,0.35),
                0 2px 8px rgba(0,0,0,0.2),
                0 1px 0 rgba(255,255,255,0.1) inset;
    border-bottom: 3px solid var(--primary-color);
    transition: all 0.3s ease;
}

#mainNav.navbar-scrolled {
    background-color: rgba(42, 50, 113, 0.98);
    box-shadow: 0 10px 40px rgba(0,0,0,0.45),
                0 4px 12px rgba(0,0,0,0.25),
                0 1px 0 rgba(255,255,255,0.15) inset;
    border-bottom: 3px solid var(--primary-color);
}

#mainNav .nav-link {
    color: rgba(255,255,255,0.9);
    font-weight: 500;
    padding: 0.5rem 1rem;
    position: relative;
    transition: color 0.3s ease;
}

#mainNav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
}

#mainNav .nav-link:hover,
#mainNav .nav-link.active {
    color: var(--secondary-color);
}

#mainNav .nav-link:hover::after,
#mainNav .nav-link.active::after {
    width: 80%;
}

/* Mail Login Button */
#mainNav .nav-mail-login {
    margin-left: 0.5rem;
    display: flex;
    align-items: center;
}

#mainNav .btn-mail-login {
    background: var(--primary-color);
    color: var(--white) !important;
    padding: 0.5rem 1.2rem !important;
    border-radius: 6px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4),
                0 1px 3px rgba(0, 0, 0, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

#mainNav .btn-mail-login::after {
    display: none;
}

#mainNav .btn-mail-login:hover {
    background: var(--primary-light);
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.5),
                0 3px 8px rgba(0, 0, 0, 0.35),
                inset 0 1px 0 rgba(255, 255, 255, 0.15);
    color: var(--white) !important;
}

#mainNav .btn-mail-login i {
    font-size: 1.1rem;
    line-height: 1;
}

/* Language Switch Link */
#mainNav .nav-lang-switch {
    margin-left: 0.5rem;
    display: flex;
    align-items: center;
}

#mainNav .btn-lang-switch {
    color: rgba(255,255,255,0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

#mainNav .btn-lang-switch::after {
    display: none;
}

#mainNav .btn-lang-switch:hover {
    color: var(--secondary-color) !important;
}

#mainNav .btn-lang-switch i {
    font-size: 1rem;
    line-height: 1;
}

.navbar-toggler {
    border-color: rgba(255,255,255,0.5);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Mobile menu collapse styles */
#navbarNav.collapse.show {
    display: block !important;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #2a3271 !important;
    padding: 1rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    z-index: 1049;
}

#navbarNav.collapsing {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #2a3271 !important;
}

/* Ensure navbar has proper background on mobile */
@media (max-width: 992px) {
    #mainNav {
        background-color: #2a3271 !important;
    }

    #mainNav .container {
        position: relative;
    }

    #navbarNav .nav-link {
        color: rgba(255,255,255,0.9) !important;
        padding: 0.75rem 1rem;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    #navbarNav .nav-link:last-child {
        border-bottom: none;
    }
}

/* --- Hero Section --- */
.hero-section {
    position: relative;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 40%);
    color: var(--white);
    min-height: 100vh;
    overflow: hidden;
    width: 100%;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
}

.hero-section .carousel,
.hero-section .carousel-inner,
.hero-section .carousel-item {
    width: 100% !important;
    min-height: 100vh;
}

.hero-section .carousel-item {
    position: relative;
}

.hero-section .carousel-item.active {
    display: block !important;
}

.hero-section .carousel-item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
    object-fit: cover;
    /* Fallback for browsers without object-fit */
    font-family: 'object-fit: cover;';
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 120px 0;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content .container {
    max-width: 100% !important;
    padding-left: 30px;
    padding-right: 30px;
    width: 100% !important;
    margin: 0 !important;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: rgba(255,255,255,0.95);
    margin-bottom: 2rem;
    font-weight: 400;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5),
                 0 1px 4px rgba(0,0,0,0.3),
                 0 0 20px rgba(0,0,0,0.2);
    letter-spacing: 0.5px;
    line-height: 1.6;
}

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

.hero-section .btn-primary:hover {
    background-color: var(--secondary-light);
    border-color: var(--secondary-light);
}

.carousel-control-prev,
.carousel-control-next {
    width: 60px;
    height: 60px;
    top: 50%;
    -webkit-transform: translateY(-50%);
    transform: translateY(-50%);
    opacity: 0.7;
    -webkit-transition: opacity 0.3s ease;
    transition: opacity 0.3s ease;
    z-index: 20;
    cursor: pointer;
}

.carousel-control-prev:hover,
.carousel-control-next:hover {
    opacity: 1;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
    z-index: 21;
}

.carousel-indicators {
    bottom: 40px;
    z-index: 25;
}

.carousel-indicators [data-bs-target] {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.5);
    border: 0;
    margin: 0 6px;
    cursor: pointer;
    position: relative;
    z-index: 26;
}

.carousel-indicators .active {
    background-color: var(--secondary-color);
}

/* --- Section Base --- */
section {
    position: relative;
}

section.py-5 {
    padding-top: 80px !important;
    padding-bottom: 80px !important;
}

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

/* --- Services Section --- */
.services-section {
    background-color: var(--white);
}

.service-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 40px 30px;
    text-align: center;
    height: 100%;
    transition: all 0.3s ease;
}

.service-card:hover {
    -webkit-transform: translateY(-10px);
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    -webkit-transform: scale(1.1);
    transform: scale(1.1);
}

.service-icon i {
    font-size: 1.8rem;
    color: var(--white);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.service-card p {
    color: var(--light-text);
    margin-bottom: 20px;
}

.read-more {
    color: var(--primary-color);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: all 0.3s ease;
}

.read-more:hover {
    color: var(--secondary-color);
}

.read-more i {
    transition: transform 0.3s ease;
}

.read-more:hover i {
    transform: translateX(5px);
}

/* --- Tracking Section --- */
.tracking-section {
    background-color: var(--light-bg);
}

.tracking-container {
    background: rgba(255,255,255,0.1);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 40px;
}

.tracking-form {
    background: var(--white);
    border-radius: 8px;
    padding: 30px;
}

.tracking-form .form-label {
    color: var(--dark-text);
    font-weight: 500;
}

.tracking-form .form-control,
.tracking-form .form-select {
    border-color: var(--border-color);
    padding: 12px 16px;
    height: auto;
}

.tracking-form .form-control:focus,
.tracking-form .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(42, 50, 113, 0.25);
}

.tracking-result {
    background: var(--white);
    border-radius: 8px;
}

.tracking-result .card {
    border: none;
}

.tracking-result .card-title {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-color);
}

/* --- News Section --- */
.news-section {
    background-color: var(--white);
}

.news-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    height: 100%;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.news-card:hover {
    -webkit-transform: translateY(-8px);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: right;
}

.news-image img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-image img {
    -webkit-transform: scale(1.08);
    transform: scale(1.08);
}

.news-date {
    background: #da7521 !important;
    color: #ffffff !important;
    padding: 10px 18px !important;
    border-radius: 4px;
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    min-height: auto;
    line-height: 1.4;
    white-space: nowrap;
    display: block !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.news-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: #2a3271 !important;
    color: #ffffff !important;
    padding: 6px 12px !important;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    min-height: auto;
    line-height: 1.4;
    white-space: nowrap;
    display: flex !important;
    align-items: center;
    gap: 5px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.news-badge i {
    font-size: 1rem;
}

.news-content {
    padding: 25px;
}

.news-content h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--primary-color);
    line-height: 1.4;
}

.news-content p {
    color: var(--light-text);
    margin-bottom: 18px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* --- Company Section --- */
.company-section {
    background-color: var(--light-bg);
}

.company-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.company-image img {
    width: 100%;
    height: auto;
}

.company-content {
    padding-left: 30px;
}

.company-stats {
    background: var(--white);
    padding: 25px;
    border-radius: 8px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    color: var(--light-text);
    font-size: 0.95rem;
}

/* --- Contact Section --- */
.contact-section {
    background-color: var(--light-bg);
}

.contact-info {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    height: 100%;
    box-shadow: var(--shadow);
}

.contact-item {
    display: flex;
    gap: 18px;
    margin-bottom: 25px;
}

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

.contact-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon i {
    font-size: 1.4rem;
    color: var(--white);
}

.contact-content h4 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.contact-content p {
    color: var(--light-text);
    margin-bottom: 0;
}

.contact-form {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.contact-form .form-control,
.contact-form .form-select {
    border-color: var(--border-color);
    padding: 12px 16px;
}

.contact-form .form-control:focus,
.contact-form .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(42, 50, 113, 0.25);
}

.contact-form .form-label {
    color: var(--dark-text);
    font-weight: 500;
}

/* --- Footer --- */
.footer-section {
    background-color: var(--primary-color);
    color: var(--white);
}

.footer-section h5 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 1.2rem;
}

.footer-section p {
    color: rgba(255,255,255,0.8);
}

.footer-links {
    list-style: none;
    padding: 0;
}

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

.footer-links a {
    color: rgba(255,255,255,0.8);
    transition: color 0.3s ease, padding-left 0.3s ease;
    display: inline-block;
}

.footer-links a:hover {
    color: var(--secondary-color);
    padding-left: 8px;
}

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

.social-link {
    width: 42px;
    height: 42px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--secondary-color);
    color: var(--white);
    -webkit-transform: translateY(-3px);
    transform: translateY(-3px);
}

.footer-section .border-top {
    border-color: rgba(255,255,255,0.15) !important;
}

/* --- Back to Top --- */
.back-to-top {
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 50px;
    height: 50px;
    background: var(--secondary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: all 0.3s ease;
}

.back-to-top.show {
    display: flex;
}

.back-to-top:hover {
    background: var(--secondary-light);
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
}

/* --- Page Header (Inner Pages) --- */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding-top: 90px;
    min-height: 200px;
    text-align: left;
    position: relative;
    overflow: hidden;
}

.page-header .container {
    padding-top: 25px;
    padding-bottom: 25px;
    position: relative;
    z-index: 2;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.05;
    z-index: 1;
}

/* 装饰线条 */
.deco-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 4px;
    z-index: 2;
}

.top-line {
    top: 0;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--secondary-color) 20%,
        var(--secondary-light) 50%,
        var(--secondary-color) 80%,
        transparent 100%);
}

.bottom-line {
    bottom: 0;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(255,255,255,0.3) 20%,
        rgba(255,255,255,0.5) 50%,
        rgba(255,255,255,0.3) 80%,
        transparent 100%);
}

/* 装饰性几何图形 - 仅右侧 */
.deco-shape {
    position: absolute;
    opacity: 0.12;
    z-index: 1;
    -webkit-animation: float 6s ease-in-out infinite;
    animation: float 6s ease-in-out infinite;
}

.shape-circle {
    border-radius: 50%;
    background: var(--secondary-color);
}

.shape-diamond {
    background: var(--white);
    -webkit-transform: rotate(45deg);
    transform: rotate(45deg);
}

.shape-triangle {
    width: 0;
    height: 0;
    border-left: 25px solid transparent;
    border-right: 25px solid transparent;
    border-bottom: 43px solid var(--secondary-light);
    background: transparent;
}

.shape-1 {
    width: 70px;
    height: 70px;
    top: 80px;
    right: 8%;
    animation-delay: 0s;
}

.shape-2 {
    width: 35px;
    height: 35px;
    top: 105px;
    right: 18%;
    animation-delay: 1s;
}

.shape-3 {
    top: 110px;
    right: 30%;
    animation-delay: 2s;
}

.shape-4 {
    width: 45px;
    height: 45px;
    bottom: 20px;
    right: 12%;
    animation-delay: 1.5s;
}

@-webkit-keyframes float {
    0%, 100% {
        -webkit-transform: translateY(0) rotate(0deg);
        transform: translateY(0) rotate(0deg);
    }
    50% {
        -webkit-transform: translateY(-12px) rotate(5deg);
        transform: translateY(-12px) rotate(5deg);
    }
}

@keyframes float {
    0%, 100% {
        -webkit-transform: translateY(0) rotate(0deg);
        transform: translateY(0) rotate(0deg);
    }
    50% {
        -webkit-transform: translateY(-12px) rotate(5deg);
        transform: translateY(-12px) rotate(5deg);
    }
}

.shape-diamond {
    -webkit-animation-name: floatDiamond;
    animation-name: floatDiamond;
}

@-webkit-keyframes floatDiamond {
    0%, 100% {
        -webkit-transform: rotate(45deg) translateY(0);
        transform: rotate(45deg) translateY(0);
    }
    50% {
        -webkit-transform: rotate(50deg) translateY(-12px);
        transform: rotate(50deg) translateY(-12px);
    }
}

@keyframes floatDiamond {
    0%, 100% {
        -webkit-transform: rotate(45deg) translateY(0);
        transform: rotate(45deg) translateY(0);
    }
    50% {
        -webkit-transform: rotate(50deg) translateY(-12px);
        transform: rotate(50deg) translateY(-12px);
    }
}

.shape-triangle {
    -webkit-animation-name: floatTriangle;
    animation-name: floatTriangle;
}

@-webkit-keyframes floatTriangle {
    0%, 100% {
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
    50% {
        -webkit-transform: translateY(-8px);
        transform: translateY(-8px);
    }
}

@keyframes floatTriangle {
    0%, 100% {
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
    50% {
        -webkit-transform: translateY(-8px);
        transform: translateY(-8px);
    }
}

.page-header h1 {
    color: var(--white);
    font-size: 2.8rem;
    margin-bottom: 0.8rem;
    position: relative;
    z-index: 2;
    display: inline-block;
}

.page-header h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary-color), var(--secondary-light));
    border-radius: 2px;
}

/* 标语区域 */
.header-slogan {
    text-align: right;
    position: relative;
    z-index: 2;
    padding-left: 30px;
}

.header-slogan::before {
    content: '';
    position: absolute;
    left: -350px;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 80%;
    background: linear-gradient(180deg,
        transparent 0%,
        rgba(255,255,255,0.3) 20%,
        rgba(255,255,255,0.5) 50%,
        rgba(255,255,255,0.3) 80%,
        transparent 100%);
}

.slogan-main {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 8px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.6),
                 0 4px 12px rgba(0,0,0,0.4),
                 0 0 20px rgba(42,50,113,0.3);
    letter-spacing: 0.5px;
}

.slogan-sub {
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.6;
    text-shadow: 0 1px 3px rgba(0,0,0,0.8),
                 0 2px 8px rgba(0,0,0,0.5),
                 0 0 15px rgba(0,0,0,0.3);
    letter-spacing: 0.3px;
}

.breadcrumb-nav {
    position: relative;
    z-index: 2;
}

.breadcrumb {
    justify-content: flex-start;
    background: transparent;
    padding: 0;
    margin: 0;
    margin-top: 15px;
}

.breadcrumb-item,
.breadcrumb-item a {
    color: rgba(255,255,255,0.8);
}

.breadcrumb-item.active {
    color: var(--secondary-color);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: rgba(255,255,255,0.6);
}

@media (max-width: 992px) {
    .header-slogan {
        text-align: left;
        border-left: none;
        border-top: 1px solid rgba(255,255,255,0.2);
        padding-left: 0;
        padding-top: 20px;
        margin-top: 20px;
    }
}

/* --- Sidebar --- */
.sidebar {
    background: var(--white);
    border-radius: 8px;
    padding: 0;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-menu li {
    border-bottom: 1px solid var(--border-color);
}

.sidebar-menu li:last-child {
    border-bottom: none;
}

.sidebar-menu a {
    display: block;
    padding: 15px 20px;
    color: var(--dark-text);
    font-weight: 500;
    transition: all 0.3s ease;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--primary-color);
    color: var(--white);
}

.sidebar-menu a i {
    margin-right: 10px;
}

/* --- Content Cards --- */
.content-card {
    background: var(--white);
    border-radius: 8px;
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 25px;
    overflow-x: auto;
}

.content-card h2,
.content-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* --- Responsive Design --- */
@media (max-width: 992px) {
    body {
        padding-top: 70px;
    }

    #mainNav {
        z-index: 1050;
    }

    #mainNav .nav-mail-login,
    #mainNav .nav-lang-switch {
        margin-left: 0;
        margin-top: 0.5rem;
    }

    #mainNav .btn-mail-login,
    #mainNav .btn-lang-switch {
        padding: 0.6rem 1.2rem !important;
        justify-content: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 1.7rem;
    }

    .company-content {
        padding-left: 0;
        padding-top: 30px;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }
    h3 { font-size: 1.3rem; }

    .hero-section,
    .hero-section .carousel-inner,
    .hero-section .carousel-item {
        min-height: auto;
    }

    .hero-content {
        padding: 80px 0;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    section.py-5 {
        padding-top: 50px !important;
        padding-bottom: 50px !important;
    }

    .service-card,
    .news-content,
    .content-card {
        padding: 20px;
    }

    .tracking-container {
        padding: 20px;
    }

    .tracking-form,
    .contact-form,
    .contact-info {
        padding: 20px;
    }

    .company-stats {
        padding: 20px 15px;
    }

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

    .page-header {
        padding: 60px 0 40px;
    }

    .page-header h1 {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 1.6rem;
    }

    .btn-primary,
    .btn-secondary,
    .btn-outline-primary {
        padding: 10px 20px;
    }

    .back-to-top {
        right: 15px;
        bottom: 15px;
        width: 45px;
        height: 45px;
    }
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        -webkit-transform: translateY(30px);
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}

@-webkit-keyframes fadeInLeft {
    from {
        opacity: 0;
        -webkit-transform: translateX(-30px);
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateX(0);
        transform: translateX(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        -webkit-transform: translateX(-30px);
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateX(0);
        transform: translateX(0);
    }
}

@-webkit-keyframes fadeInRight {
    from {
        opacity: 0;
        -webkit-transform: translateX(30px);
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateX(0);
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        -webkit-transform: translateX(30px);
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateX(0);
        transform: translateX(0);
    }
}

.animate-fadeInUp {
    -webkit-animation: fadeInUp 0.6s ease forwards;
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fadeInLeft {
    -webkit-animation: fadeInLeft 0.6s ease forwards;
    animation: fadeInLeft 0.6s ease forwards;
}

.animate-fadeInRight {
    -webkit-animation: fadeInRight 0.6s ease forwards;
    animation: fadeInRight 0.6s ease forwards;
}

@-webkit-keyframes scaleIn {
    from {
        opacity: 0;
        -webkit-transform: scale(0.95);
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        -webkit-transform: scale(0.95);
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}

@-webkit-keyframes slideUpFade {
    from {
        opacity: 0;
        -webkit-transform: translateY(40px);
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}

@keyframes slideUpFade {
    from {
        opacity: 0;
        -webkit-transform: translateY(40px);
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}

@-webkit-keyframes staggerFadeIn {
    from {
        opacity: 0;
        -webkit-transform: translateY(20px);
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}

@keyframes staggerFadeIn {
    from {
        opacity: 0;
        -webkit-transform: translateY(20px);
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}

.animate-scaleIn {
    -webkit-animation: scaleIn 0.5s ease forwards;
    animation: scaleIn 0.5s ease forwards;
}

.animate-slideUpFade {
    -webkit-animation: slideUpFade 0.6s ease forwards;
    animation: slideUpFade 0.6s ease forwards;
}

.animate-stagger {
    opacity: 0;
    -webkit-animation: staggerFadeIn 0.5s ease forwards;
    animation: staggerFadeIn 0.5s ease forwards;
}

.animate-stagger-delay-1 { animation-delay: 0.1s; }
.animate-stagger-delay-2 { animation-delay: 0.2s; }
.animate-stagger-delay-3 { animation-delay: 0.3s; }
.animate-stagger-delay-4 { animation-delay: 0.4s; }
.animate-stagger-delay-5 { animation-delay: 0.5s; }
.animate-stagger-delay-6 { animation-delay: 0.6s; }
.animate-stagger-delay-7 { animation-delay: 0.7s; }

/* --- Image Styles with Edge Transitions --- */
img {
    -webkit-transition: all 0.4s ease;
    transition: all 0.4s ease;
}

/* Hero Carousel Images - Bottom edge fade */
.hero-section .carousel-item img {
    mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
}

/* News Card Images - Subtle rounded corners and shadow */
.news-image {
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: right;
}

.news-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to top, rgba(42, 50, 113, 0.05), transparent);
    pointer-events: none;
    z-index: 1;
}

.news-image img {
    width: 100%;
    height: 220px;
    -o-object-fit: cover;
    object-fit: cover;
    -webkit-transition: -webkit-transform 0.5s ease;
    transition: transform 0.5s ease;
    border-radius: 0 0 8px 8px;
    /* Fallback for browsers without object-fit */
    font-family: 'object-fit: cover;';
}

/* Company Section Image - Soft vignette effect */
.company-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.company-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    z-index: 1;
    pointer-events: none;
}

.company-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* General Image Enhancement Classes */
.img-fade-edges {
    mask-image: radial-gradient(circle at center, black 70%, transparent 100%);
    -webkit-mask-image: radial-gradient(circle at center, black 70%, transparent 100%);
}

.img-shadow-glow {
    box-shadow: 0 8px 30px rgba(42, 50, 113, 0.15),
                0 2px 10px rgba(0, 0, 0, 0.08);
}

.img-soft-border {
    border: 1px solid rgba(42, 50, 113, 0.1);
    background-clip: padding-box;
}

/* --- Utility Classes --- */
.text-primary-color { color: var(--primary-color) !important; }
.text-secondary-color { color: var(--secondary-color) !important; }
.bg-primary-color { background-color: var(--primary-color) !important; }
.bg-secondary-color { background-color: var(--secondary-color) !important; }

.shadow-sm { box-shadow: 0 1px 5px rgba(0,0,0,0.08); }
.shadow-md { box-shadow: 0 3px 10px rgba(0,0,0,0.1); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.rounded-sm { border-radius: 4px; }
.rounded-md { border-radius: 8px; }
.rounded-lg { border-radius: 12px; }

/* --- Management Systems Section --- */
.systems-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.systems-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.08;
}

.systems-section .section-title,
.systems-section .section-subtitle {
    color: var(--white);
    position: relative;
    z-index: 1;
}

.systems-section .section-title::after {
    background: linear-gradient(90deg, var(--secondary-dark), var(--secondary-light));
}

.systems-section.py-5 {
    padding-top: 70px !important;
    padding-bottom: 70px !important;
}

.system-card {
    background: rgba(255, 255, 255, 0.12);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 25px 18px;
    height: 100%;
    -webkit-transition: all 0.4s ease;
    transition: all 0.4s ease;
    position: relative;
    z-index: 1;
}

.system-card:hover {
    -webkit-transform: translateY(-8px) scale(1.02);
    transform: translateY(-8px) scale(1.02);
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--secondary-color);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.system-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 15px;
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s ease;
}

.system-card:hover .system-icon {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg);
}

.system-icon i {
    font-size: 1.6rem;
    color: var(--white) !important;
    display: block;
    transition: transform 0.4s ease;
}

.system-card:hover .system-icon i {
    -webkit-transform: rotateY(-180deg);
    transform: rotateY(-180deg);
}

.system-card h4 {
    font-size: 0.95rem;
    margin-bottom: 12px;
    color: var(--white);
    font-weight: 500;
}

.system-card .btn-outline-primary {
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.4);
    background: transparent;
}

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

/* --- Branch Cards --- */
.branch-link {
    text-decoration: none;
    display: block;
}

.branch-link:hover {
    text-decoration: none;
}

.branch-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px 15px;
    text-align: center;
    height: 100%;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.branch-card:hover {
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    background: #f8f9fa;
}

.branch-card i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

.branch-card:hover i {
    color: var(--secondary-color);
}

.branch-card span {
    color: var(--dark-text);
    font-weight: 500;
    font-size: 0.95rem;
    line-height: 1.3;
    transition: color 0.3s ease;
}

.branch-card:hover span {
    color: var(--primary-color);
}

/* --- Simplified Branch List --- */
.branch-list-container {
    background: var(--white);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.branch-item {
    height: 100%;
}

.branch-item a {
    display: flex;
    align-items: center;
    padding: 10px 14px;
    color: var(--dark-text);
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 6px;
    background: transparent;
    border: none;
    height: 100%;
}

.branch-item a:hover {
    background: var(--light-bg);
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
}

.branch-item a i {
    margin-right: 10px;
    font-size: 1.1rem;
    color: var(--primary-color);
    transition: color 0.3s ease;
    flex-shrink: 0;
}

.branch-item a:hover i {
    color: var(--secondary-color);
}

.branch-item a span {
    font-weight: 500;
    transition: color 0.3s ease;
    font-size: 0.95rem;
    line-height: 1.3;
}

.branch-item a:hover span {
    color: var(--primary-color);
}

/* --- 经典案例 --- */
.service-card-classic {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(42, 50, 113, 0.08);
    border: 1px solid rgba(42, 50, 113, 0.1);
}

.classic-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
}

.classic-icon-badge {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(42, 50, 113, 0.3);
}

.classic-icon-badge i {
    font-size: 1.8rem;
    color: var(--white);
}

.classic-title {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 0;
    font-weight: 700;
}

.classic-tagline {
    font-size: 1rem;
    color: var(--secondary-color);
    margin: 0;
    font-weight: 500;
}

/* 改进前后对比 */
.classic-comparison-section {
    margin-bottom: 32px;
}

.classic-compare-card {
    background: var(--white);
    border-radius: 12px;
    padding: 24px;
    height: 100%;
    border: 2px solid var(--light-gray);
    position: relative;
    transition: all 0.3s ease;
}

.classic-compare-card.before {
    border-color: #e74c3c;
}

.classic-compare-card.after {
    border-color: #27ae60;
}

.classic-compare-card:hover {
    -webkit-transform: translateY(-4px);
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.classic-compare-label {
    display: inline-block;
    padding: 6px 18px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.classic-compare-card.before .classic-compare-label {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: var(--white);
}

.classic-compare-card.after .classic-compare-label {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    color: var(--white);
}

.classic-compare-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.classic-compare-list li {
    padding: 10px 0;
    color: var(--light-text);
    line-height: 1.7;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.classic-compare-list li + li {
    border-top: 1px dashed var(--light-gray);
}

.classic-compare-list li i {
    margin-top: 4px;
    flex-shrink: 0;
}

.classic-compare-card.before li i {
    color: #e74c3c;
}

.classic-compare-card.after li i {
    color: #27ae60;
}

/* 截图展示 */
.classic-screenshots-section {
    margin-bottom: 32px;
}

.classic-screenshot-main {
    background: var(--white);
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--light-gray);
}

.classic-screenshot-main img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

.classic-screenshot-caption {
    text-align: center;
    margin-top: 12px;
    color: var(--light-text);
    font-size: 0.9rem;
    font-weight: 500;
}

.classic-highlight-box {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    padding: 32px 24px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.classic-highlight-box h4 {
    color: var(--white);
    font-size: 1.4rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.classic-highlight-box h4 i {
    margin-right: 8px;
}

.classic-highlight-box p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin: 0;
    font-weight: 600;
}

/* 数据统计 */
.classic-stats-section {
    margin-bottom: 32px;
}

.classic-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.classic-stat-item {
    background: var(--white);
    border-radius: 12px;
    padding: 24px 16px;
    text-align: center;
    border: 1px solid var(--light-gray);
    transition: all 0.3s ease;
}

.classic-stat-item:hover {
    -webkit-transform: translateY(-6px);
    transform: translateY(-6px);
    box-shadow: 0 10px 30px rgba(42, 50, 113, 0.12);
    border-color: var(--primary-color);
}

.classic-stat-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.classic-stat-icon i {
    font-size: 1.6rem;
    color: var(--white);
}

.classic-stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.classic-stat-label {
    font-size: 0.95rem;
    color: var(--light-text);
    line-height: 1.4;
    font-weight: 500;
}

/* 系统特点 */
.classic-features-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    padding: 28px 32px;
}

.classic-feature-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 12px 0;
}

.classic-feature-card + .classic-feature-card {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.classic-feature-bullet {
    width: 12px;
    height: 12px;
    background: var(--secondary-color);
    border-radius: 50%;
    margin-top: 8px;
    flex-shrink: 0;
    box-shadow: 0 0 0 4px rgba(218, 117, 33, 0.3);
}

.classic-feature-card p {
    color: var(--white);
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* 经典案例响应式 */
@media (max-width: 1200px) {
    .classic-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .service-card-classic {
        padding: 24px;
    }

    .classic-header {
        flex-direction: column;
        text-align: center;
    }

    .classic-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .service-card-classic {
        padding: 20px;
    }

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

    .classic-highlight-box {
        padding: 24px 20px;
    }

    .classic-features-section {
        padding: 20px;
    }
}

/* =============================================
   浏览器兼容性说明
   =============================================

   本CSS文件已优化了以下浏览器兼容性：

   已添加的浏览器前缀：
   - -webkit- 前缀用于：
     * transform, -webkit-transform
     * transition, -webkit-transition
     * animation, -webkit-animation
     * @keyframes, @-webkit-keyframes
     * backdrop-filter, -webkit-backdrop-filter
     * mask-image, -webkit-mask-image (已存在)

   兼容特性支持：
   - object-fit (含 -o-object-fit
   - scroll-behavior (含降级方案)
   - CSS Custom Properties (含降级方案)

   支持浏览器：
   - Chrome 49+
   - Firefox 45+
   - Safari 10+
   - Edge 12+
   - iOS Safari 10+
   - Android 5+
*/