:root {
    --primary-color: #3a5ca9;
    --secondary-color: #e94c36;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --accent-color: #5cb85c;
}

body {
    font-family: "Microsoft YaHei", "Heiti SC", sans-serif;
    color: #333;
    line-height: 1.6;
}

.navbar-brand img {
    height: 40px;
}

.navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.hero-section {
    background: linear-gradient(135deg, #3a5ca9, #6a82c3);
    color: white;
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='rgba(255,255,255,.075)' fill-rule='evenodd'/%3E%3C/svg%3E") repeat;
    opacity: 0.3;
}

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

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

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

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.25rem;
    border-radius: 0.5rem;
}

.features-section {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background-color: white;
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    height: 100%;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.process-section {
    padding: 5rem 0;
}

.process-step {
    text-align: center;
    position: relative;
}

.process-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    font-size: 2rem;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
}

.process-number {
    position: absolute;
    top: -15px;
    right: -15px;
    width: 40px;
    height: 40px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.25rem;
}

.pricing-section {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.pricing-card {
    background-color: white;
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    padding: 2rem;
    text-align: center;
    height: 100%;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: scale(1.03);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.pricing-header {
    border-bottom: 1px solid #eee;
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 1rem 0;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.5rem 0;
    border-bottom: 1px dashed #eee;
}

.pricing-features i {
    color: var(--accent-color);
    margin-right: 0.5rem;
}

.faq-section {
    padding: 5rem 0;
}

.faq-item {
    margin-bottom: 1.5rem;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.faq-question {
    padding: 1.25rem;
    background-color: var(--primary-color);
    color: white;
    font-weight: bold;
    cursor: pointer;
    position: relative;
}

.faq-answer {
    padding: 1.25rem;
    background-color: white;
    border: 1px solid #eee;
    border-top: none;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    margin: 2rem 0;
}

.comparison-table th {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem;
    text-align: center;
}

.comparison-table tr:nth-child(even) {
    background-color: #f8f9fa;
}

.comparison-table td {
    padding: 1rem;
    text-align: center;
    border: 1px solid #eee;
}

.highlight {
    background-color: rgba(92, 184, 92, 0.1);
    border-left: 4px solid var(--accent-color);
    padding: 1rem;
    margin: 1.5rem 0;
}

.testimonial-section {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.testimonial-card {
    background-color: white;
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    padding: 2rem;
    position: relative;
    margin-top: 3rem;
}

.testimonial-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid white;
}

.testimonial-content {
    margin-top: 2.5rem;
    font-style: italic;
}

.testimonial-author {
    margin-top: 1.5rem;
    text-align: right;
    font-weight: bold;
    color: var(--primary-color);
}

.contact-section {
    padding: 5rem 0;
}

.contact-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 3rem 0;
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255,255,255,0.1);
    color: white;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.copyright {
    margin-top: 3rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1.5rem;
    text-align: center;
    color: #aaa;
}

.quick-nav {
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    background-color: white;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    padding: 0.5rem;
    z-index: 1000;
    display: none;
}

.quick-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.quick-nav li {
    margin: 0.5rem 0;
}

.quick-nav a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-color);
    color: var(--dark-color);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.quick-nav a:hover {
    background-color: var(--primary-color);
    color: white;
}

.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    cursor: pointer;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

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

.accent-text {
    color: var(--secondary-color);
    font-weight: bold;
}

.font-size-controls {
    position: fixed;
    bottom: 80px;
    right: 20px;
    background-color: white;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    padding: 0.5rem;
    z-index: 1000;
}

.font-size-controls button {
    width: 40px;
    height: 40px;
    border: none;
    background-color: var(--light-color);
    color: var(--dark-color);
    border-radius: 50%;
    margin: 0.25rem 0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.font-size-controls button:hover {
    background-color: var(--primary-color);
    color: white;
}

.social-share {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.social-share button {
    background-color: var(--light-color);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.social-share button:hover {
    background-color: var(--primary-color);
    color: white;
}

.likes-counter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.likes-counter button {
    background-color: var(--light-color);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.likes-counter button:hover {
    background-color: var(--primary-color);
    color: white;
}

.favorites-counter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.favorites-counter button {
    background-color: var(--light-color);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.favorites-counter button:hover {
    background-color: var(--primary-color);
    color: white;
}

@media (max-width: 767.98px) {
    .quick-nav {
        display: none !important;
    }
    .process-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    .process-number {
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }
}

@media (min-width: 992px) {
    .quick-nav {
        display: block;
    }
}

/* 按钮悬浮效果 */
.check-paper {
    background-color: #ff6b00; 
    color: white; 
    font-weight: bold; 
    padding: 0.85rem 2rem; 
    border-radius: 50px; 
    border: none; 
    box-shadow: 0 5px 15px rgba(255, 107, 0, 0.3); 
    transition: all 0.3s ease;
}

.check-paper:hover {
    background-color: #ff8c00 !important;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 107, 0, 0.4) !important;
}

.download-report {
    background-color: rgba(255, 255, 255, 0.2); 
    color: white; 
    font-weight: bold; 
    padding: 0.85rem 2rem; 
    border-radius: 50px; 
    border: 2px solid white; 
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.1); 
    transition: all 0.3s ease;
}

.download-report:hover {
    background-color: rgba(255, 255, 255, 0.3) !important;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 255, 255, 0.2) !important;
}

/* 动画效果 */
.hero-section {
    position: relative;
    overflow: hidden;
}

.bubble {
    position: absolute;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    animation: float 8s infinite ease-in-out;
    z-index: 0;
}

@keyframes float {
    0% { transform: translateY(0) translateX(0) rotate(0); opacity: 0; }
    10% { opacity: 0.8; }
    90% { opacity: 0.6; }
    100% { transform: translateY(-100vh) translateX(20px) rotate(360deg); opacity: 0; }
}

.floating {
    animation: floating 3s infinite ease-in-out;
}

@keyframes floating {
    0% { transform: translate(0, 0px); }
    50% { transform: translate(0, 15px); }
    100% { transform: translate(0, 0px); }
}

.glowing {
    animation: glow 2s infinite alternate;
}

@keyframes glow {
    from { text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px #ff6b00, 0 0 20px #ff6b00; }
    to { text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px #ff6b00, 0 0 40px #ff6b00; }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes float1 {
    0% { transform: translateY(0) rotate(10deg); }
    50% { transform: translateY(-10px) rotate(14deg); }
    100% { transform: translateY(0) rotate(10deg); }
}

@keyframes float2 {
    0% { transform: translateY(0) rotate(-5deg); }
    50% { transform: translateY(10px) rotate(-9deg); }
    100% { transform: translateY(0) rotate(-5deg); }
}

@keyframes float3 {
    0% { transform: translateY(0) rotate(5deg); }
    50% { transform: translateY(-8px) rotate(8deg); }
    100% { transform: translateY(0) rotate(5deg); }
}

/* 费用计算器按钮样式 */
.fee-calculator-btn {
    background-color: #ff6b00 !important; 
    color: white !important; 
    font-weight: bold;
    border: none;
    transition: all 0.3s ease;
}

.fee-calculator-btn:hover {
    background-color: #ff8c00 !important;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 107, 0, 0.4) !important;
    color: white !important;
}