/* ImageTwin 主样式文件 */

/* 基础重置 */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background: #fff;
    overflow-x: hidden;
}

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

a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #764ba2;
    text-decoration: underline;
}

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

.section {
    padding: 80px 20px;
}

/* 页头导航 */
.header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: transform 0.3s, box-shadow 0.3s;
    border-bottom: 1px solid rgba(102,126,234,0.1);
}

.header.hidden {
    transform: translateY(-100%);
}

.header:hover {
    box-shadow: 0 4px 25px rgba(0,0,0,0.12);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    transition: transform 0.3s;
}

.logo:hover {
    transform: translateY(-2px);
}

.logo img {
    height: 50px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 5px;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    font-weight: 500;
    padding: 10px 18px;
    border-radius: 8px;
    transition: all 0.3s;
    display: block;
    position: relative;
}

.nav-menu a:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102,126,234,0.3);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition: transform 0.3s;
}

.nav-menu a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: background 0.3s;
}

.menu-toggle:hover {
    background: rgba(102,126,234,0.1);
}

.menu-toggle span {
    width: 26px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Banner - 重新设计 */
.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 40%, #3b82f6 100%);
    color: #fff;
    padding: 60px 20px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.15;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.3) 1px, transparent 1px),
        radial-gradient(circle at 80% 70%, rgba(255,255,255,0.3) 1px, transparent 1px),
        radial-gradient(circle at 40% 80%, rgba(255,255,255,0.2) 1px, transparent 1px),
        radial-gradient(circle at 90% 20%, rgba(255,255,255,0.2) 1px, transparent 1px),
        radial-gradient(circle at 60% 50%, rgba(255,255,255,0.25) 1px, transparent 1px);
    background-size: 200px 200px, 300px 300px, 250px 250px, 280px 280px, 220px 220px;
    animation: particleFloat 20s linear infinite;
}

@keyframes particleFloat {
    0% { transform: translateY(0); }
    100% { transform: translateY(-50px); }
}

.hero-dna-strand {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 50px,
            rgba(255,255,255,0.03) 50px,
            rgba(255,255,255,0.03) 100px
        );
}

.hero .container {
    position: relative;
    z-index: 1;
    max-width: 1100px;
}

/* Hero社会证明 - 顶部小标签 */
.hero-social-proof {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 35px;
    padding: 12px 28px;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,0.15);
}

.proof-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.proof-number {
    font-size: 1.3em;
    font-weight: 700;
    color: #fbbf24;
}

.proof-label {
    font-size: 0.75em;
    opacity: 0.8;
}

.proof-divider {
    opacity: 0.25;
    font-size: 1em;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 30px;
    margin-bottom: 30px;
    border: 1px solid rgba(255,255,255,0.2);
}

.badge-icon {
    font-size: 1.1em;
}

.badge-text {
    font-size: 0.85em;
    font-weight: 500;
    letter-spacing: 0.3px;
    opacity: 0.95;
}

.hero h1 {
    font-size: 2.6em;
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.3;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
    letter-spacing: -0.5px;
}

.subtitle-line {
    display: block;
    font-size: 0.65em;
    margin-top: 12px;
    opacity: 0.85;
    font-weight: 400;
}

/* Hero痛点提示 - 弱化 */
.hero-pain-point {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(239,68,68,0.12);
    backdrop-filter: blur(10px);
    padding: 10px 22px;
    border-radius: 30px;
    margin-bottom: 45px;
    border: 1px solid rgba(239,68,68,0.25);
    animation: gentle-pulse 3s infinite;
}

@keyframes gentle-pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(239,68,68,0.4);
    }
    50% {
        transform: scale(1.02);
        box-shadow: 0 0 20px 5px rgba(239,68,68,0.2);
    }
}

.pain-icon {
    font-size: 1.1em;
}

.pain-text {
    font-size: 0.85em;
    font-weight: 400;
    opacity: 0.95;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 850px;
    margin: 0 auto 50px;
}

.hero-feature-item {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
    padding: 18px 16px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
    border: 1px solid rgba(255,255,255,0.12);
    transition: all 0.3s;
}

.hero-feature-item:hover {
    background: rgba(255,255,255,0.12);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 1.6em;
    flex-shrink: 0;
    opacity: 0.9;
}

.feature-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.feature-text strong {
    font-size: 0.9em;
    display: block;
}

.feature-text span {
    font-size: 0.75em;
    opacity: 0.75;
}

.hero-description {
    font-size: 0.95em;
    line-height: 1.7;
    margin-bottom: 40px;
    opacity: 0.85;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Hero价格预告 */
.hero-price-preview {
    margin-bottom: 45px;
}

.price-tag {
    display: inline-flex;
    align-items: center;
    gap: 18px;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: #78350f;
    padding: 16px 40px;
    border-radius: 50px;
    box-shadow: 0 6px 25px rgba(251,191,36,0.5);
    animation: price-shine 3s infinite;
}

@keyframes price-shine {
    0%, 100% {
        box-shadow: 0 6px 25px rgba(251,191,36,0.5);
    }
    50% {
        box-shadow: 0 8px 35px rgba(251,191,36,0.7);
    }
}

.price-label {
    font-size: 0.9em;
    font-weight: 700;
    background: #78350f;
    color: #fbbf24;
    padding: 4px 12px;
    border-radius: 15px;
}

.price-value {
    font-size: 1.5em;
    font-weight: 700;
}

.price-note {
    font-size: 0.9em;
    opacity: 0.95;
}

.cta-group {
    display: flex;
    gap: 18px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 35px;
}

.cta-pulse {
    animation: cta-pulse-animation 2.5s infinite;
}

@keyframes cta-pulse-animation {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 6px 20px rgba(255,107,107,0.5);
    }
    50% {
        transform: scale(1.03);
        box-shadow: 0 10px 35px rgba(255,107,107,0.7);
    }
}

.btn-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 3px;
}

.btn-content strong {
    font-size: 1.1em;
}

.btn-content small {
    font-size: 0.75em;
    opacity: 0.9;
}

/* Hero紧迫感 */
.hero-urgency {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(10px);
    padding: 8px 18px;
    border-radius: 25px;
    font-size: 0.8em;
    margin-bottom: 40px;
    border: 1px solid rgba(255,255,255,0.1);
    opacity: 0.9;
}

.urgency-dot {
    width: 6px;
    height: 6px;
    background: #10b981;
    border-radius: 50%;
    animation: urgency-blink 2s infinite;
}

@keyframes urgency-blink {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 4px #10b981;
    }
    50% {
        opacity: 0.4;
        box-shadow: 0 0 8px #10b981;
    }
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 40px;
    border-radius: 50px;
    font-size: 1.05em;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-icon {
    font-size: 1.2em;
}

.cta-primary {
    background: #ff6b6b;
    color: #fff;
    box-shadow: 0 4px 15px rgba(255,107,107,0.4);
    animation: pulse 2s infinite;
}

.cta-primary:hover {
    background: #ff5252;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,107,107,0.6);
}

.cta-secondary {
    background: rgba(255,255,255,0.2);
    color: #fff;
    border: 2px solid #fff;
}

.cta-secondary:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.trust-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 0;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,255,255,0.06);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85em;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255,255,255,0.1);
    opacity: 0.9;
}

.trust-icon {
    color: #4ade80;
    font-weight: 700;
    font-size: 1em;
}

/* 通用标题样式 */
h2 {
    font-size: 2.2em;
    margin-bottom: 15px;
    color: #2c3e50;
    text-align: center;
    font-weight: 700;
}

h3 {
    font-size: 1.5em;
    margin-bottom: 12px;
    color: #34495e;
    font-weight: 600;
}

.section-intro {
    text-align: center;
    font-size: 1.1em;
    color: #666;
    margin-bottom: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 权威期刊合作 */
.publishers-section {
    background: #fff;
    padding: 60px 20px;
    border-bottom: 1px solid #e5e7eb;
}

.publishers-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.publishers-text h3 {
    font-size: 1.8em;
    color: #1e3a8a;
    margin-bottom: 20px;
    font-weight: 700;
}

.publishers-text p {
    font-size: 1.05em;
    line-height: 1.8;
    color: #4b5563;
}

.publishers-image {
    text-align: center;
}

.publishers-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    transition: transform 0.3s;
}

.publishers-image img:hover {
    transform: scale(1.02);
}

/* 痛点板块 */
.pain-points {
    background: #fff5f5;
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.pain-item {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

.pain-item:hover {
    transform: translateY(-5px);
}

.pain-icon {
    margin-bottom: 25px;
    display: flex;
    justify-content: center;
}

.pain-icon img {
    margin: 0 auto;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transition: transform 0.3s;
}

.pain-item:hover .pain-icon img {
    transform: scale(1.05);
}

.pain-stat {
    display: inline-block;
    margin-top: 15px;
    padding: 8px 20px;
    background: #ff6b6b;
    color: #fff;
    border-radius: 20px;
    font-weight: 600;
}

.warning-box {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 20px;
    border-radius: 8px;
    margin-top: 30px;
}

/* 产品介绍 */
.what-is {
    background: #f8f9fa;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.content-text p {
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 10px 0;
    border-bottom: 1px solid #e0e0e0;
}

.content-image img {
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

/* 核心功能 */
.features {
    background: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 35px;
    border-radius: 15px;
    position: relative;
    overflow: hidden;
}

.feature-number {
    font-size: 3em;
    font-weight: 700;
    color: rgba(102,126,234,0.3);
    position: absolute;
    top: 10px;
    right: 20px;
}

.feature-detail {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid rgba(255,255,255,0.5);
}

.feature-detail img {
    margin-top: 15px;
    border-radius: 8px;
}

/* 检测流程 */
.how-it-works {
    background: #f8f9fa;
}

.steps-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 50px;
}

.step-item {
    flex: 1;
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8em;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-details {
    list-style: none;
    padding: 0;
    text-align: left;
    margin-top: 15px;
}

.step-details li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.step-details li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: 700;
}

.step-arrow {
    font-size: 2em;
    color: #667eea;
    align-self: center;
    font-weight: 700;
}

.demo-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 30px;
}

.btn-demo {
    display: inline-block;
    padding: 15px 35px;
    background: #fff;
    color: #667eea;
    border-radius: 30px;
    font-weight: 600;
    margin-top: 20px;
    transition: all 0.3s;
}

.btn-demo:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,255,255,0.3);
}

.notice-box {
    background: #e3f2fd;
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid #2196f3;
}

.notice-list {
    margin-top: 20px;
}

.notice-list dt {
    font-weight: 700;
    color: #1976d2;
    margin-top: 15px;
}

.notice-list dd {
    margin-left: 0;
    margin-top: 5px;
    padding-left: 20px;
}

/* 检测原理 */
.principle {
    background: #fff;
}

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

.principle-text h3 {
    color: #1e3a8a;
    margin-bottom: 20px;
}

.principle-text h4 {
    color: #2c3e50;
    margin-top: 25px;
    margin-bottom: 15px;
}

.tech-list {
    padding-left: 20px;
    margin: 20px 0;
}

.tech-list li {
    margin-bottom: 15px;
    line-height: 1.8;
}

.principle-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 30px 20px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5em;
    font-weight: 700;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.95em;
    opacity: 0.9;
}

/* 价格方案 */
.pricing {
    background: #f8f9fa;
}

.pricing-card-main {
    max-width: 650px;
    margin: 0 auto 50px;
    background: #fff;
    padding: 45px 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.12);
    position: relative;
    border: 2px solid #e8f0fe;
    text-align: center;
}

.pricing-card-main .cta-btn {
    margin: 25px auto;
    display: inline-flex;
}

.pricing-badge {
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #ff6b6b 0%, #ff5252 100%);
    color: #fff;
    padding: 10px 25px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 0.95em;
    box-shadow: 0 4px 15px rgba(255,107,107,0.4);
}

.pricing-card-main h3 {
    text-align: center;
    font-size: 1.5em;
    color: #2c3e50;
    margin-bottom: 10px;
}

.price-display {
    text-align: center;
    margin: 25px 0 15px;
}

.price-currency {
    font-size: 1.8em;
    vertical-align: top;
    color: #667eea;
}

.price-amount {
    font-size: 4.5em;
    font-weight: 700;
    color: #667eea;
    line-height: 1;
}

.price-unit {
    font-size: 1.3em;
    color: #666;
}

.price-desc {
    text-align: center;
    color: #666;
    margin-bottom: 35px;
    font-size: 1.05em;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 30px 0;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

.pricing-note {
    text-align: center;
    color: #999;
    font-size: 0.9em;
    margin-top: 20px;
}

.pricing-compare {
    margin-top: 60px;
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.compare-table th,
.compare-table td {
    padding: 15px;
    text-align: center;
    border-bottom: 1px solid #e0e0e0;
}

.compare-table th {
    background: #667eea;
    color: #fff;
    font-weight: 600;
}

.highlight-row {
    background: #f0f4ff;
}

.highlight-col {
    background: #e8f0fe;
    font-weight: 600;
}

/* 使用场景 */
.scenarios {
    background: #fff;
}

.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.scenario-card {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.scenario-card img {
    margin-top: 20px;
    border-radius: 8px;
}

.highlight {
    color: #ff6b6b;
    font-weight: 600;
}

/* 信任背书 */
.trust {
    background: #f8f9fa;
}

.trust-content {
    margin-bottom: 50px;
}

.trust-logos h3 {
    text-align: center;
    margin-bottom: 30px;
}

.logo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 50px;
}

.partner-logo {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.testimonials h3 {
    text-align: center;
    margin-bottom: 30px;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.testimonial-item {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 15px;
    line-height: 1.7;
}

.testimonial-author {
    font-weight: 600;
    color: #667eea;
    margin-bottom: 10px;
}

.testimonial-rating {
    color: #ffc107;
    font-size: 1.2em;
}

.tech-validation {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.validation-list {
    list-style: none;
    padding: 0;
}

.validation-list li {
    padding: 12px 0;
    border-bottom: 1px solid #e0e0e0;
}

/* 产品对比 */
.comparison {
    background: #fff;
}

.comparison-table-wrapper {
    overflow-x: auto;
}

.full-compare-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    min-width: 700px;
}

.full-compare-table th,
.full-compare-table td {
    padding: 15px;
    text-align: center;
    border-bottom: 1px solid #e0e0e0;
}

.full-compare-table th {
    background: #667eea;
    color: #fff;
    font-weight: 600;
}

.full-compare-table td:first-child {
    text-align: left;
    font-weight: 500;
}

.comparison-note {
    margin-top: 30px;
    padding: 20px;
    background: #e8f0fe;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

/* FAQ */
.faq {
    background: #f8f9fa;
}

.quick-questions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 50px;
}

.quick-question-item {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.quick-question-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.quick-question-item a {
    color: inherit;
    text-decoration: none;
}

.qq-icon {
    font-size: 2em;
}

.quick-question-item span:not(.qq-icon) {
    font-weight: 600;
    font-size: 0.95em;
}

.faq-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.faq-category {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.faq-category h3 {
    margin-bottom: 20px;
    color: #667eea;
}

.faq-list {
    list-style: none;
    padding: 0;
}

.faq-item {
    border-bottom: 1px solid #e0e0e0;
    margin-bottom: 10px;
}

.faq-question {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 15px 0;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.3s;
}

.faq-question:hover {
    color: #667eea;
}

.faq-icon {
    font-size: 1.5em;
    color: #667eea;
    transition: transform 0.3s;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 0 0 0;
}

.faq-answer.active {
    max-height: 500px;
    padding: 0 0 15px 0;
}

.faq-cta {
    text-align: center;
    margin-top: 50px;
    padding: 30px;
    background: #fff;
    border-radius: 12px;
}

.btn-contact {
    display: inline-block;
    padding: 15px 35px;
    background: #667eea;
    color: #fff;
    border-radius: 30px;
    font-weight: 600;
    margin-top: 15px;
    transition: all 0.3s;
}

.btn-contact:hover {
    background: #764ba2;
    transform: translateY(-2px);
}

/* 数据统计 */
.stats {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.stats h2 {
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: rgba(255,255,255,0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.stat-value {
    font-size: 3em;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1em;
    opacity: 0.9;
}

/* 注意事项 */
.tips {
    background: #fff;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.tip-card {
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid;
}

.tip-warning {
    background: #fff3cd;
    border-color: #ffc107;
}

.tip-success {
    background: #d4edda;
    border-color: #28a745;
}

.tip-info {
    background: #d1ecf1;
    border-color: #17a2b8;
}

.tip-card ul {
    list-style: none;
    padding: 0;
}

.tip-card li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

/* 底部CTA */
.final-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-align: center;
}

.final-cta h2 {
    color: #fff;
}

.trust-signals {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.trust-signals span {
    font-size: 1em;
    opacity: 0.95;
}

/* 联系我们 */
.contact {
    background: #f8f9fa;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    background: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.contact-info h3 {
    text-align: center;
    margin-bottom: 30px;
    color: #667eea;
}

.contact-list {
    list-style: none;
    padding: 0;
}

.contact-list li {
    padding: 20px 0;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

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

.contact-list strong {
    min-width: 120px;
    color: #2c3e50;
}

.wechat-number {
    font-size: 1.1em;
    font-weight: 600;
    color: #667eea;
    letter-spacing: 1px;
}

.btn-copy-wechat {
    padding: 6px 15px;
    background: #667eea;
    color: #fff;
    border: none;
    border-radius: 20px;
    font-size: 0.9em;
    cursor: pointer;
    transition: all 0.3s;
    margin-left: 10px;
}

.btn-copy-wechat:hover {
    background: #764ba2;
    transform: translateY(-2px);
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 60px 20px 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-about img {
    margin-bottom: 20px;
}

.footer-about p {
    line-height: 1.8;
    color: #bdc3c7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.footer-col h4 {
    margin-bottom: 15px;
    color: #fff;
}

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

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

.footer-col a {
    color: #bdc3c7;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 30px;
    text-align: center;
    color: #95a5a6;
}

.footer-bottom p {
    margin: 10px 0;
}

.footer-contact a {
    color: #95a5a6;
    margin: 0 10px;
}

/* 侧边栏导航 */
.sidebar-nav {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    max-width: 200px;
    z-index: 999;
}

.toc h4 {
    margin-bottom: 15px;
    font-size: 1em;
    color: #667eea;
}

.toc ul {
    list-style: none;
    padding: 0;
}

.toc li {
    margin-bottom: 8px;
}

.toc a {
    font-size: 0.9em;
    color: #666;
    transition: color 0.3s;
}

.toc a:hover {
    color: #667eea;
}

/* 价值对比 */
.value-comparison {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin-bottom: 50px;
    padding: 40px;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.comparison-item {
    flex: 1;
    text-align: center;
    padding: 30px;
    border-radius: 12px;
    transition: transform 0.3s;
}

.cost-item {
    background: #fff5f5;
    border: 2px solid #fee;
}

.save-item {
    background: #f0fdf4;
    border: 2px solid #dcfce7;
}

.comparison-icon {
    font-size: 3em;
    margin-bottom: 15px;
}

.comparison-item h4 {
    font-size: 1.2em;
    margin-bottom: 15px;
    color: #2c3e50;
}

.comparison-price {
    font-size: 2.5em;
    font-weight: 700;
    margin-bottom: 10px;
}

.cost-item .comparison-price {
    color: #dc2626;
}

.save-item .comparison-price {
    color: #16a34a;
}

.comparison-item p {
    font-size: 0.95em;
    color: #666;
    line-height: 1.6;
}

.comparison-vs {
    font-size: 1.5em;
    font-weight: 700;
    color: #667eea;
}

.urgency-tag {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
    padding: 12px 20px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 20px;
    font-size: 0.95em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: #dc2626;
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

.guarantee-box {
    display: flex;
    align-items: center;
    gap: 15px;
    background: #f0fdf4;
    padding: 20px;
    border-radius: 10px;
    margin-top: 25px;
    border: 2px solid #dcfce7;
}

.guarantee-icon {
    font-size: 2em;
}

.guarantee-text strong {
    display: block;
    color: #16a34a;
    margin-bottom: 5px;
}

.guarantee-text p {
    font-size: 0.9em;
    color: #666;
    margin: 0;
}

.btn-text {
    display: block;
    font-size: 1.1em;
}

.btn-subtext {
    display: block;
    font-size: 0.85em;
    opacity: 0.9;
    margin-top: 2px;
}

/* 悬浮CTA */
.floating-cta {
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.floating-cta.visible {
    opacity: 1;
    visibility: visible;
}

.floating-cta-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 25px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ff5252 100%);
    color: #fff;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 6px 25px rgba(255,107,107,0.5);
    transition: all 0.3s;
    animation: float-bounce 3s infinite;
}

.floating-cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255,107,107,0.6);
}

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

.floating-icon {
    font-size: 1.5em;
}

.floating-text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.floating-text strong {
    font-size: 1em;
}

.floating-text small {
    font-size: 0.8em;
    opacity: 0.9;
}

/* 回到顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #667eea;
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 1.5em;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 998;
}

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

.back-to-top:hover {
    background: #764ba2;
    transform: translateY(-5px);
}

/* ===== 新Banner样式 ===== */

/* 顶部区域 */
.hero-top {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.1);
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9em;
    border: 1px solid rgba(255,255,255,0.2);
}

.badge-icon {
    font-size: 1.1em;
}

.hero-stats-inline {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9em;
    opacity: 0.9;
}

.hero-stats-inline .divider {
    opacity: 0.5;
}

/* 主标题区 */
.hero-main {
    margin-bottom: 50px;
}

.hero-main h1 {
    font-size: 3em;
    font-weight: 700;
    margin-bottom: 15px;
    line-height: 1.2;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.3em;
    opacity: 0.9;
    margin-bottom: 25px;
}

.hero-alert {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(239,68,68,0.15);
    padding: 10px 24px;
    border-radius: 25px;
    font-size: 0.95em;
    border: 1px solid rgba(239,68,68,0.3);
}

.alert-icon {
    font-size: 1.2em;
}

/* 特性网格 */
.hero-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 900px;
    margin: 0 auto 50px;
}

.feature-box {
    background: rgba(255,255,255,0.08);
    padding: 25px 20px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.12);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.feature-box:hover {
    background: rgba(255,255,255,0.12);
    transform: translateY(-3px);
}

.feature-box .feature-icon {
    font-size: 2.5em;
    margin-bottom: 5px;
}

.feature-box strong {
    font-size: 1.05em;
}

.feature-box span {
    font-size: 0.85em;
    opacity: 0.8;
}

/* 价格与CTA区 */
.hero-action-section {
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-price-card {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: #78350f;
    padding: 20px 40px;
    border-radius: 15px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    box-shadow: 0 8px 30px rgba(251,191,36,0.4);
}

.price-badge {
    background: #78350f;
    color: #fbbf24;
    padding: 5px 12px;
    border-radius: 12px;
    font-size: 1.58em;
    font-weight: 700;
}

.price-main {
    display: flex;
    align-items: baseline;
    gap: 5px;
}

.price-big {
    font-size: 1.5em;
    font-weight: 700;
}

.price-small {
    font-size: 1em;
}

.price-tip {
    font-size: 0.9em;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* 底部信任信息 */
.hero-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
    font-size: 0.9em;
    opacity: 0.85;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.live-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: live-blink 2s infinite;
}

@keyframes live-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.footer-right {
    display: flex;
    gap: 20px;
}