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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #080f1a;
    color: #e8f0f8;
    line-height: 1.6;
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #0a1a2b;
}
::-webkit-scrollbar-thumb {
    background: #00d4ff;
    border-radius: 10px;
}

/* ===== 导航 ===== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(8, 15, 26, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    padding: 16px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo span {
    background: linear-gradient(135deg, #00d4ff, #7b61ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

nav a {
    color: #b0c8dd;
    text-decoration: none;
    margin-left: 32px;
    font-size: 15px;
    transition: color 0.3s;
}

nav a:hover {
    color: #00d4ff;
}

/* ===== 首屏 ===== */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    filter: brightness(0.30) saturate(1.3);
    z-index: 0;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

.hero-content h1 {
    font-size: 58px;
    font-weight: 800;
    line-height: 1.1;
    background: linear-gradient(135deg, #ffffff 0%, #90d5ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 20px;
    color: #b8d0e5;
    margin-bottom: 36px;
    line-height: 1.7;
}

.btn-primary {
    display: inline-block;
    padding: 14px 48px;
    background: linear-gradient(135deg, #0077ff, #00d4ff);
    border-radius: 60px;
    color: #fff;
    font-weight: 600;
    font-size: 18px;
    text-decoration: none;
    box-shadow: 0 8px 32px rgba(0, 119, 255, 0.3);
    transition: transform 0.2s, box-shadow 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 119, 255, 0.5);
}

.trust-badges {
    display: flex;
    gap: 40px;
    margin-top: 48px;
    font-size: 15px;
    color: #8aaccc;
}

.trust-badges span {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ===== 统计条 ===== */
.stats-section {
    background: rgba(0, 212, 255, 0.02);
    border-top: 1px solid rgba(0, 212, 255, 0.05);
    border-bottom: 1px solid rgba(0, 212, 255, 0.05);
    padding: 50px 0;
}

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

.stat-item {
    text-align: center;
    padding: 16px;
}

.stat-number {
    font-size: 44px;
    font-weight: 700;
    background: linear-gradient(135deg, #00d4ff, #7b61ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: #8aaccc;
    font-size: 16px;
    margin-top: 8px;
    letter-spacing: 1px;
}

/* ===== 通用标题 ===== */
.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
}

.section-title span {
    background: linear-gradient(135deg, #00d4ff, #7b61ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== 服务卡片 ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.service-card {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 24px;
    padding: 40px 30px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 212, 255, 0.4);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    background: rgba(255, 255, 255, 0.07);
}

.service-card .icon {
    font-size: 48px;
    display: block;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.service-card p {
    color: #b0c8dd;
    font-size: 15px;
    line-height: 1.7;
}

.service-card .tag {
    display: inline-block;
    margin-top: 20px;
    background: rgba(0, 212, 255, 0.15);
    color: #00d4ff;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

/* ===== 看板 ===== */
.dashboard-section {
    background: rgba(0, 212, 255, 0.015);
}

.dashboard-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.metric-card {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 16px;
    padding: 24px 28px;
    text-align: center;
}

.metric-value {
    font-size: 36px;
    font-weight: 700;
    color: #00d4ff;
}

.metric-value small {
    font-size: 16px;
    color: #8aaccc;
    font-weight: 400;
}

.metric-label {
    color: #8aaccc;
    font-size: 14px;
    margin-top: 4px;
}

.metric-change {
    font-size: 14px;
    color: #4ade80;
    margin-left: 8px;
}

/* ===== 柱状图 ===== */
.chart-container {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 16px;
    padding: 32px 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 200px;
    gap: 12px;
}

.bar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    justify-content: flex-end;
}

.bar {
    width: 100%;
    max-width: 40px;
    background: linear-gradient(180deg, #00d4ff, #7b61ff);
    border-radius: 6px 6px 0 0;
    min-height: 8px;
    transition: height 1.5s cubic-bezier(0.22, 1, 0.36, 1);
    height: 20px;
}

.bar-label {
    color: #6a8aaa;
    font-size: 12px;
    margin-top: 12px;
}

/* ===== 报告列表 ===== */
.reports-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.report-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 28px;
    background: rgba(255, 255, 255, 0.02);
    border-left: 4px solid #00d4ff;
    border-radius: 12px;
    transition: background 0.3s;
}

.report-item:hover {
    background: rgba(0, 212, 255, 0.05);
}

.report-info h4 {
    font-size: 18px;
    font-weight: 600;
}

.report-info p {
    color: #8aaccc;
    font-size: 14px;
    margin-top: 4px;
}

.report-date {
    color: #4a6a8a;
    font-size: 14px;
    white-space: nowrap;
}

/* ===== 评价 ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.testimonial-card .avatar {
    font-size: 48px;
    margin-bottom: 12px;
}

.testimonial-card .name {
    font-weight: 600;
    font-size: 18px;
}

.testimonial-card .role {
    color: #00d4ff;
    font-size: 14px;
}

.testimonial-card .content {
    margin-top: 16px;
    color: #b8d0e5;
    font-style: italic;
}

/* ===== 页脚 ===== */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 40px 0;
    text-align: center;
    color: #5a7a9a;
    font-size: 14px;
}

.footer-content p {
    margin: 6px 0;
}

.footer-content a {
    color: #00d4ff;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-content a:hover {
    color: #7b61ff;
    text-decoration: underline;
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .stats-grid,
    .services-grid,
    .dashboard-metrics,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .hero-content h1 {
        font-size: 36px;
    }

    .nav-container {
        flex-direction: column;
        gap: 12px;
    }

    nav a {
        margin: 0 12px;
        font-size: 14px;
    }

    .trust-badges {
        flex-wrap: wrap;
        gap: 16px;
    }

    .report-item {
        flex-direction: column;
        align-items: start;
        gap: 8px;
    }

    .report-date {
        white-space: normal;
    }

    .section {
        padding: 50px 0;
    }

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

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 28px;
    }
    .hero-content p {
        font-size: 16px;
    }
    .btn-primary {
        padding: 12px 32px;
        font-size: 16px;
    }
    .stat-number {
        font-size: 32px;
    }
    .metric-value {
        font-size: 28px;
    }
}

/* ===== 浮动联系方式面板 ===== */
.float-contact-panel {
    position: fixed;
    right: -150px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(8, 15, 26, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-right: none;
    border-radius: 16px 0 0 16px;
    padding: 12px;
    width: 150px;
    z-index: 1000;
    transition: right 0.3s ease;
}

.float-contact-panel.show {
    right: 0;
}

.float-contact-panel .panel-title {
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 12px;
    color: #00d4ff;
}

.float-contact-panel .qrcode-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.float-contact-panel .qrcode-item {
    text-align: center;
}

.float-contact-panel .qrcode-item .icon {
    font-size: 18px;
    margin-bottom: 4px;
}

.float-contact-panel .qrcode-item img {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: #fff;
}

.float-contact-panel .qrcode-item .name {
    font-size: 12px;
    color: #b0c8dd;
    margin-top: 4px;
}

.float-contact-trigger {
    position: absolute;
    left: -40px;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, #00d4ff, #7b61ff);
    width: 40px;
    height: 100px;
    border-radius: 8px 0 0 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 24px;
    transition: transform 0.2s;
}

.float-contact-trigger:hover {
    transform: translateY(-50%) scale(1.1);
}

/* 响应式隐藏浮动面板 */
@media (max-width: 768px) {
    .float-contact-panel {
        display: none;
    }
}