/* 
 * 八方航聚低空经济与专业无人机培训旗舰主题样式表 (main.css)
 * 设计规范：纯粹航空科技工业美学，深海深蓝 + 科技航天蓝 + 权威金色高亮，严格禁用蓝紫渐变！
 * 性能规范：零外部外链依赖，字体完全本地自托管 (Local Hosted Fonts)，100% 适配大陆高速访问环境！
 */

/* --------------------------------------------------------------------------
 * 本地自托管字体体系 (Local Hosted Fonts)
 * -------------------------------------------------------------------------- */
@font-face {
    font-family: 'Rajdhani';
    font-style: normal;
    font-weight: 600 700;
    font-display: swap;
    src: url('../fonts/LDIoaomQNQcsA88c7O9yZ4KMCoOg4Ko20yw.woff2') format('woff2');
}

@font-face {
    font-family: 'Plus Jakarta Sans';
    font-style: normal;
    font-weight: 500 700 800;
    font-display: swap;
    src: url('../fonts/LDI2apCSOBg7S-QT7pbYF_Oreec.woff2') format('woff2');
}

:root {
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "HarmonyOS Sans SC", "Source Han Sans CN", sans-serif;
    --font-hud: 'Rajdhani', "DIN Alternate", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Consolas, "Microsoft YaHei", monospace;
    --primary-navy: #0B192C;
    --navy-light: #15294A;
    --primary-blue: #0284C7;
    --blue-hover: #0369A1;
    --blue-soft: #E0F2FE;
    --gold-accent: #D97706;
    --gold-bright: #F59E0B;
    --gold-soft: #FEF3C7;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --text-light: #94A3B8;
    --bg-page: #F8FAFC;
    --bg-white: #FFFFFF;
    --border-color: #E2E8F0;
    --border-focus: #0284C7;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 14px;
    --radius-full: 9999px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 基础重置 */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    color: var(--text-main);
    background-color: var(--bg-page);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 航天雷达脉冲呼吸指示灯 */
.live-beacon-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: #10B981;
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: beaconPulse 1.8s infinite;
    margin-right: 6px;
    vertical-align: middle;
}

@keyframes beaconPulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }

    70% {
        transform: scale(1);
        box-shadow: 0 0 0 7px rgba(16, 185, 129, 0);
    }

    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

ul,
ol {
    list-style: none;
}

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

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
}

.site-container {
    width: 100%;
    max-width: 1240px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

/* 按钮规范 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: #FFFFFF;
    box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
}

.btn-primary:hover {
    background-color: var(--blue-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(2, 132, 199, 0.45);
    color: #FFFFFF;
}

.btn-gold {
    background-color: var(--gold-accent);
    color: #FFFFFF;
    box-shadow: 0 4px 14px rgba(217, 119, 6, 0.35);
}

.btn-gold:hover {
    background-color: #B45309;
    transform: translateY(-2px);
    color: #FFFFFF;
}

.btn-outline {
    background-color: transparent;
    border-color: rgba(255, 255, 255, 0.3);
    color: #FFFFFF;
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: #FFFFFF;
    color: #FFFFFF;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-md {
    padding: 12px 24px;
    font-size: 1rem;
}

.btn-lg {
    padding: 15px 32px;
    font-size: 1.1rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* 顶部公告栏 */
.top-announcement-bar {
    background-color: #060E1A;
    color: #94A3B8;
    font-size: 0.8125rem;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.announcement-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.announcement-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.badge-tag {
    background: rgba(2, 132, 199, 0.2);
    color: #38BDF8;
    border: 1px solid rgba(56, 189, 248, 0.3);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.announcement-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

.hotline-number {
    color: var(--gold-bright);
    font-weight: 700;
}

.hotline-number:hover {
    color: #FBBF24;
    text-decoration: underline;
}

/* 站点头部 Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(11, 25, 44, 0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon-box {
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, #0284C7 0%, #0369A1 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.4);
}

.logo-text-box {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: 0.5px;
    line-height: 1.2;
}

.brand-sub {
    font-size: 0.75rem;
    color: #94A3B8;
    letter-spacing: 0.8px;
}

/* 8大核心导航菜单 */
.primary-nav-wrapper {
    display: flex;
    align-items: center;
}

.main-menu-list {
    display: flex;
    align-items: center;
    gap: 4px;
}

.main-menu-list>li>a {
    display: block;
    padding: 8px 14px;
    color: #CBD5E1;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    position: relative;
    transition: var(--transition);
}

.main-menu-list>li>a:hover {
    color: #38BDF8;
    background: rgba(255, 255, 255, 0.05);
}

.main-menu-list>li.current-menu-item>a,
.main-menu-list>li.current_page_item>a {
    color: #FFFFFF;
    background: rgba(2, 132, 199, 0.25);
    font-weight: 700;
}

.main-menu-list>li.current-menu-item>a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 14px;
    right: 14px;
    height: 3px;
    background: #38BDF8;
    border-radius: 2px;
}

.header-action-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-toggle .bar {
    width: 100%;
    height: 2px;
    background: #FFFFFF;
    border-radius: 2px;
    transition: var(--transition);
}

/* 移动端抽屉菜单 */
.mobile-drawer-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100%;
    background-color: #0B192C;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    box-shadow: -5px 0 25px rgba(0, 0, 0, 0.5);
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-drawer-nav.active {
    right: 0;
}

.mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-drawer-close {
    background: transparent;
    border: none;
    color: #FFFFFF;
    font-size: 28px;
    cursor: pointer;
}

.mobile-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.mobile-menu-list li a {
    display: block;
    padding: 12px 16px;
    color: #E2E8F0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 1rem;
    font-weight: 500;
}

.mobile-menu-list li.current-menu-item a {
    color: #38BDF8;
    background: rgba(2, 132, 199, 0.15);
    border-radius: var(--radius-sm);
}

.mobile-hotline-card {
    margin-top: 30px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    text-align: center;
}

.hotline-title {
    font-size: 0.8125rem;
    color: #94A3B8;
}

.hotline-link {
    display: block;
    color: var(--gold-bright);
    font-size: 1.25rem;
    font-weight: 800;
    margin: 6px 0;
}

.work-time {
    font-size: 0.75rem;
    color: #64748B;
}

/* 全站通用板块标题 */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px auto;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--blue-soft);
    color: var(--primary-blue);
    font-weight: 700;
    font-size: 0.8125rem;
    padding: 4px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.section-tag.tag-dark {
    background: rgba(2, 132, 199, 0.2);
    color: #38BDF8;
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.3;
    margin-bottom: 14px;
}

.section-title.title-white {
    color: #FFFFFF;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.section-subtitle.subtitle-light {
    color: #94A3B8;
}

/* 首页 Hero 巨幕 (极简大厂空天巨幕 · 纯粹居中对称) */
.hero-section {
    background:
        linear-gradient(rgba(11, 25, 44, 0.95), rgba(6, 14, 26, 0.98)),
        repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(56, 189, 248, 0.035) 50px),
        repeating-linear-gradient(90deg, transparent, transparent 49px, rgba(56, 189, 248, 0.035) 50px),
        radial-gradient(circle at 50% 25%, #183d6e 0%, #0B192C 65%, #040914 100%);
    color: #FFFFFF;
    padding: 50px 0 70px 0;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(56, 189, 248, 0.15);
}

.hero-container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 顶部唯一整合徽章 (极简精致，告别多层杂乱) */
.hero-top-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 8px 24px;
    background: rgba(2, 132, 199, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: var(--radius-full);
    margin: 0 auto 24px auto;
    backdrop-filter: blur(8px);
    box-shadow: 0 0 25px rgba(2, 132, 199, 0.2);
}

.hero-top-badge .badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: #00E5FF;
    box-shadow: 0 0 10px #00E5FF;
}

.hero-top-badge .badge-text {
    font-size: 0.875rem;
    font-weight: 600;
    color: #7DD3FC;
    letter-spacing: 0.8px;
}

/* 核心视觉标题 (完全居中对称) */
.hero-brand-title {
    margin: 0 auto 20px auto;
    padding: 0;
    line-height: 1;
    width: 100%;
    max-width: 840px;
    display: flex;
    justify-content: center;
}

.hero-title-svg {
    width: 100%;
    max-width: 840px;
    height: auto;
    display: block;
    margin: 0 auto;
    filter: drop-shadow(0 0 35px rgba(56, 189, 248, 0.35));
    transition: var(--transition);
}

.hero-title-svg:hover {
    filter: drop-shadow(0 0 50px rgba(56, 189, 248, 0.55));
    transform: translateY(-2px);
}

/* 屏幕阅读与搜索引擎友好的隐藏文本类 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* 极简核心宣言 (文字少、行距舒展通透) */
.hero-slogan {
    font-size: 1.15rem;
    color: #94A3B8;
    line-height: 1.85;
    margin: 0 auto 34px auto;
    max-width: 700px;
    letter-spacing: 0.5px;
    text-align: center;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* 居中核心行动按钮 (居中并排，视觉完全对称) */
.hero-cta-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin: 0 auto 50px auto;
    width: 100%;
}

.hero-cta-group .btn-lg {
    padding: 14px 34px;
    font-size: 1.05rem;
    font-weight: 700;
    border-radius: var(--radius-md);
}

.hero-btn-outline {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(56, 189, 248, 0.35);
    color: #E2E8F0;
    transition: var(--transition);
}

.hero-btn-outline:hover {
    background: rgba(2, 132, 199, 0.2);
    border-color: #38BDF8;
    color: #FFFFFF;
    box-shadow: 0 0 20px rgba(2, 132, 199, 0.3);
}

/* 航电四大硬核指标通栏看板 (通栏底座，对称沉稳) */
.telemetry-metrics-bar {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 55px;
    padding: 24px 36px;
    background: rgba(15, 23, 42, 0.72);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(16px);
    box-shadow: 0 20px 45px -15px rgba(0, 0, 0, 0.6);
    position: relative;
}

.telemetry-metrics-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 15%;
    right: 15%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.6), transparent);
}

.metric-block {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    position: relative;
    padding: 6px 12px;
    transition: transform var(--transition-fast);
}

.metric-block:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -10px;
    top: 15%;
    height: 70%;
    width: 1px;
    background: rgba(255, 255, 255, 0.08);
}

.metric-icon-box {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(2, 132, 199, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.28);
    color: #38BDF8;
    box-shadow: 0 0 16px rgba(2, 132, 199, 0.2);
    transition: all var(--transition-fast);
}

.metric-block:hover .metric-icon-box {
    background: rgba(2, 132, 199, 0.22);
    border-color: #38BDF8;
    transform: translateY(-2px);
    box-shadow: 0 0 22px rgba(56, 189, 248, 0.4);
    color: #FFFFFF;
}

.metric-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.metric-num {
    font-family: var(--font-hud);
    font-size: 2.15rem;
    font-weight: 800;
    color: #38BDF8;
    line-height: 1.1;
    letter-spacing: 0.5px;
    text-shadow: 0 0 16px rgba(56, 189, 248, 0.4);
}

.metric-label {
    font-size: 0.8125rem;
    color: #94A3B8;
    margin-top: 4px;
    letter-spacing: 0.5px;
    font-weight: 500;
    white-space: nowrap;
}

/* 兼容保留通用表单控件类名 */
.form-row {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 6px;
}

.form-label .req {
    color: #EF4444;
}

.form-control {
    width: 100%;
    padding: 11px 14px;
    font-size: 0.95rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: #FFFFFF;
    color: var(--text-main);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.18);
}

.form-privacy-note {
    font-size: 0.75rem;
    color: var(--text-light);
    text-align: center;
    margin-top: 12px;
    line-height: 1.4;
}

/* 核心护城河与硬核优势矩阵 */
.features-section {
    padding: 85px 0;
    background-color: var(--bg-white);
}

.moat-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.moat-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 34px 20px 26px;
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.moat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: #BAE6FD;
}

.moat-num {
    position: absolute;
    top: 12px;
    right: 14px;
    font-family: var(--font-hud);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-light);
    letter-spacing: 0.06em;
    padding: 2px 7px;
    border-radius: 6px;
    background: rgba(241, 245, 249, 0.9);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    line-height: 1.2;
}

.moat-card:hover .moat-num {
    color: var(--primary-blue);
    background: var(--blue-soft);
    border-color: #BAE6FD;
}

.moat-icon-box {
    width: 58px;
    height: 58px;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
    border: 1px solid #BAE6FD;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    margin-bottom: 18px;
    box-shadow: 0 4px 12px -2px rgba(2, 132, 199, 0.1);
    transition: var(--transition);
}

.moat-icon-box svg {
    display: block;
    transition: var(--transition);
}

.moat-card:hover .moat-icon-box {
    background: var(--primary-blue);
    color: #FFFFFF;
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 20px -4px rgba(2, 132, 199, 0.35);
    border-color: var(--primary-blue);
}

.moat-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--primary-navy);
    margin-bottom: 10px;
    text-align: center;
}

.moat-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.65;
    text-align: center;
}

/* 核心服务与培训课程体系 */
.services-section {
    padding: 85px 0;
    background-color: var(--bg-page);
}

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

.course-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: #38BDF8;
}

.course-card-header {
    padding: 24px 24px 16px 24px;
    border-bottom: 1px solid #F1F5F9;
}

.course-badge {
    display: inline-block;
    background: var(--gold-soft);
    color: var(--gold-accent);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    margin-bottom: 10px;
}

.course-card-title {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary-navy);
    line-height: 1.4;
    margin-bottom: 8px;
}

.course-price-tag {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary-blue);
}

.course-card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-excerpt {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
}

.course-features-list {
    margin-bottom: 25px;
    flex: 1;
}

.course-features-list li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-main);
    margin-bottom: 10px;
    line-height: 1.5;
}

.course-features-list li svg {
    color: var(--primary-blue);
    flex-shrink: 0;
    margin-top: 2px;
}

.course-card-footer {
    padding-top: 15px;
    margin-top: 8px;
    border-top: 1px solid #F1F5F9;
}

.course-card-footer .btn {
    display: flex;
    width: 100%;
    padding: 12px 20px;
    margin: 6px 0 !important;
    font-size: 0.95rem;
    box-sizing: border-box;
}

/* 核心基地实景展播 */
.bases-section {
    padding: 85px 0;
    background: radial-gradient(circle at 50% 20%, #15294A 0%, #0B192C 100%);
    color: #FFFFFF;
}

.base-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.base-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.base-card:hover {
    transform: translateY(-5px);
    border-color: #38BDF8;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.base-img-box {
    position: relative;
    overflow: hidden;
    height: 280px;
}

.base-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.base-card:hover .base-img-box img {
    transform: scale(1.05);
}

.base-info-box {
    padding: 24px;
}

.base-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 8px;
}

.base-desc {
    font-size: 0.9rem;
    color: #CBD5E1;
    line-height: 1.6;
}

/* 荣誉资质展厅与工整卡片 */
.honors-section {
    padding: 85px 0;
    background-color: var(--bg-white);
}

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

.honor-card {
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.honor-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: #F59E0B;
}

.honor-thumb-box {
    background: radial-gradient(circle at 50% 20%, #1c385c 0%, #0B192C 65%, #050b14 100%);
    padding: 16px;
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    border-bottom: 2px solid rgba(245, 158, 11, 0.35);
}

.honor-thumb-box img {
    max-height: 100%;
    width: auto;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s ease;
}

.honor-card:hover .honor-thumb-box img {
    transform: scale(1.06) translateY(-2px);
    box-shadow: 0 16px 35px rgba(0, 0, 0, 0.7);
}

.honor-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.honor-badge-type {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--gold-accent);
    background: var(--gold-soft);
    padding: 2px 8px;
    border-radius: 4px;
    margin-bottom: 8px;
}

.honor-name {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--primary-navy);
    margin-bottom: 6px;
    line-height: 1.4;
}

.honor-agency {
    font-size: 0.85rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 10px;
}

.honor-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
    flex: 1;
}

/* 客户案例网格 */
.cases-section {
    padding: 85px 0;
    background-color: var(--bg-page);
}

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

.case-card {
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: #38BDF8;
}

.case-card-img {
    height: 220px;
    overflow: hidden;
}

.case-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.case-card:hover .case-card-img img {
    transform: scale(1.06);
}

.case-card-body {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-card-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary-navy);
    margin-bottom: 8px;
    line-height: 1.4;
}

.case-card-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
    flex: 1;
}

/* FAQ 折叠手风琴系统 */
.faq-section {
    padding: 85px 0;
    background-color: var(--bg-white);
}

.faq-accordion-box {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    background-color: #FFFFFF;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.active {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-md);
}

.faq-header {
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    background-color: #FFFFFF;
    user-select: none;
    transition: background-color 0.2s ease;
}

.faq-item.active .faq-header {
    background-color: var(--blue-soft);
}

.faq-question {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary-navy);
    display: flex;
    align-items: center;
    gap: 12px;
}

.faq-q-badge {
    background: var(--primary-blue);
    color: #FFFFFF;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 4px;
}

.faq-icon-arrow {
    transition: transform 0.3s ease;
    color: var(--primary-blue);
}

.faq-item.active .faq-icon-arrow {
    transform: rotate(180deg);
}

.faq-body {
    padding: 20px 24px;
    color: var(--text-main);
    font-size: 0.95rem;
    line-height: 1.7;
    border-top: 1px solid #E2E8F0;
    display: none;
    background-color: #FAFBFD;
}

.faq-item.active .faq-body {
    display: block;
}

/* 全站底部 Footer */
.site-footer {
    background-color: #060E1A;
    color: #94A3B8;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
    padding: 70px 0 50px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr 1.2fr 1fr;
    gap: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-brand-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: #FFFFFF;
}

.footer-desc {
    font-size: 0.875rem;
    line-height: 1.7;
    margin-bottom: 20px;
    color: #94A3B8;
}

.footer-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-badge {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #CBD5E1;
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 4px;
}

.footer-col-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 32px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 2px;
}

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

.footer-links-list li a {
    color: #94A3B8;
    font-size: 0.875rem;
}

.footer-links-list li a:hover {
    color: #38BDF8;
    padding-left: 5px;
}

.footer-base-card {
    margin-bottom: 16px;
    font-size: 0.85rem;
    line-height: 1.6;
}

.footer-base-card strong {
    color: #F1F5F9;
    display: block;
    margin-bottom: 3px;
}

.footer-hotline-box {
    background: rgba(2, 132, 199, 0.15);
    border: 1px solid rgba(56, 189, 248, 0.3);
    padding: 16px;
    border-radius: var(--radius-md);
    margin-bottom: 18px;
}

.hotline-sub {
    font-size: 0.75rem;
    color: #38BDF8;
}

.hotline-val {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--gold-bright);
    display: block;
    margin-top: 4px;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.85rem;
    color: #CBD5E1;
    margin-bottom: 12px;
    line-height: 1.5;
}

.footer-contact-item svg {
    color: #38BDF8;
    flex-shrink: 0;
    margin-top: 3px;
}

.footer-bottom {
    background-color: #030812;
    padding: 22px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.8125rem;
}

.footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-bottom-inner a {
    color: #38BDF8;
}

/* 悬浮咨询挂件 */
.floating-widget {
    position: fixed;
    right: 25px;
    bottom: 50px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.widget-item {
    width: 54px;
    height: 54px;
    border-radius: var(--radius-full);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.widget-item:hover {
    transform: scale(1.1);
}

.widget-phone {
    background: #10B981;
}

.widget-form {
    background: var(--primary-blue);
}

.widget-backtop {
    background: #334155;
    display: none;
}

.widget-label {
    font-size: 0.65rem;
    margin-top: 2px;
}

.icon-rotate-180 {
    transform: rotate(180deg);
}

/* 通用模态弹窗 Modal */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-backdrop.active {
    display: flex;
}

.modal-dialog {
    width: 100%;
    max-width: 540px;
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
    animation: modalFadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0, 0, 0, 0.06);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-header {
    background: #0B192C;
    color: #FFFFFF;
    padding: 28px 28px 20px 28px;
}

.modal-badge {
    display: inline-block;
    background: rgba(2, 132, 199, 0.3);
    color: #38BDF8;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 4px;
    margin-bottom: 8px;
}

.modal-title {
    font-size: 1.4rem;
    font-weight: 800;
}

.modal-subtitle {
    font-size: 0.85rem;
    color: #CBD5E1;
    margin-top: 4px;
}

.modal-body {
    padding: 25px 28px;
}

/* 响应式媒体查询适配 */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .telemetry-metrics-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        padding: 24px 20px;
        margin-top: 40px;
    }

    .metric-block:nth-child(even)::after {
        display: none;
    }

    .moat-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

@media (max-width: 768px) {
    .top-announcement-bar {
        display: none;
    }

    .primary-nav-wrapper {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-section {
        padding: 25px 0 45px 0;
    }

    .hud-telemetry-strip {
        font-size: 0.75rem;
        gap: 8px;
        padding: 6px 12px;
        margin-bottom: 22px;
    }

    .hero-h1 {
        font-size: 2.15rem;
    }

    .hero-eyebrow {
        font-size: 1.05rem;
    }

    .hero-slogan,
    .hero-desc {
        font-size: 0.95rem;
        line-height: 1.75;
    }

    .hero-cta-group,
    .hero-cta-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
        margin-left: auto;
        margin-right: auto;
        gap: 12px;
    }

    .hero-cta-group .btn,
    .hero-cta-buttons .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-trust-row {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: 8px;
    }

    .trust-badge-item {
        width: auto;
        font-size: 0.75rem;
        padding: 5px 12px;
    }

    .telemetry-metrics-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px 10px;
        padding: 16px 12px;
        margin-top: 28px;
    }

    .metric-block {
        gap: 10px;
        padding: 4px 6px;
    }

    .metric-icon-box {
        width: 38px;
        height: 38px;
        border-radius: 9px;
    }

    .metric-icon-box svg {
        width: 18px;
        height: 18px;
    }

    .metric-num {
        font-size: 1.45rem;
    }

    .metric-label {
        font-size: 0.72rem;
        margin-top: 2px;
    }

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

    .course-grid,
    .base-grid,
    .honor-grid,
    .case-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-bottom-inner {
        flex-direction: column;
        text-align: center;
    }

    .floating-widget {
        right: 15px;
        bottom: 20px;
    }

    /* 二级页面移动端响应式堆叠优化 */
    .case-detail-row {
        grid-template-columns: 1fr !important;
    }

    .case-detail-row>div:first-child {
        order: 1;
    }

    .case-detail-row>div:last-child {
        order: 2;
    }

    .page-banner-section {
        padding: 45px 0 !important;
    }

    .site-main-content article,
    .page-contact-grid {
        padding: 24px !important;
    }
}

/* 统一打印与无障碍支持 */
@media print {

    .site-header,
    .top-announcement-bar,
    .floating-widget,
    .site-footer {
        display: none !important;
    }
}