/* ================================
   首页（index.html）样式
   ================================ */

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

:root {
    /* 默认主题 = H「深空蓝黑·炽橙」：主色取 LOGO 橙，页脚/深色块用超深蓝黑；生产发布亦沿用，故固化于 :root */
    --primary: #14263c;
    --primary-light: #1f3d5e;
    --primary-dark: #0a1424;
    --accent: #f08a1e;
    --accent-light: #ffb257;
    --accent-dark: #c96a15;
    --dot: #2d8f6e; /* 绿色小圆点点缀色（与文化卡一致；党建卡专属红点不在此列） */
    --bg-light: #f5f7fa;
    --bg-gray: #eef1f5;
    --text-main: #2c3e50;
    --text-sub: #5a6c7d;
    --text-light: #8a9aa8;
    --white: #ffffff;
    --border: #e0e5ec;
    --shadow-sm: 0 2px 8px rgba(26, 58, 92, 0.08);
    --shadow-md: 0 4px 20px rgba(26, 58, 92, 0.12);
    --shadow-lg: 0 8px 40px rgba(26, 58, 92, 0.16);
    --radius: 0;
    --radius-lg: 0;
    --max-width: 1200px;
    --transition: all 0.35s cubic-bezier(0.34, 1.3, 0.64, 1);
    --ease-spring: cubic-bezier(0.34, 1.4, 0.64, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    font-size: 16px;
}

body {
    font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
    color: var(--text-main);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}


/* ---------- 导航栏 ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid var(--border);
}

/* 扁平风格：导航栏下边缘用 1px 细线，不用阴影 */
.navbar.scrolled {
    border-bottom-color: var(--border);
}

/* 首页：导航完全透明（无任何自绘背景），顶部压暗由 hero 自身背景层承担，
   因此导航与 Hero 之间不存在任何接缝；滚动后恢复白底 */
.home .navbar {
    background: transparent;
    box-shadow: none;
    border: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}
.home .navbar .logo-text {
    color: #fff;
}
.home .navbar .nav-menu a {
    color: rgba(255, 255, 255, 0.85);
}
.home .navbar .nav-menu a:hover,
.home .navbar .nav-menu a:focus-visible {
    color: #fff;
}
.home .navbar .nav-menu a.active {
    color: #fff;
}
.home .navbar .nav-toggle span {
    background: #fff;
}
.home .navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.home .navbar.scrolled .logo-text {
    color: var(--primary);
}
.home .navbar.scrolled .nav-menu a {
    color: var(--text-main);
}
.home .navbar.scrolled .nav-menu a:hover,
.home .navbar.scrolled .nav-menu a:focus-visible {
    color: var(--primary);
}
.home .navbar.scrolled .nav-menu a.active {
    color: var(--primary);
}
.home .navbar.scrolled .nav-toggle span {
    background: var(--primary);
}
/* 调试主题G（浅色Hero）：首页导航保持白底深字 */
html.theme-g .home .navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
html.theme-g .home .navbar .logo-text,
html.theme-g .home .navbar .nav-menu a,
html.theme-g .home .navbar .nav-menu a.active {
    color: var(--primary);
}

.navbar .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    /* 导航比正文容器（1200px）略宽，但适度内收，避免过于贴边（参考站思路） */
    max-width: 1440px;
    padding: 0 64px;
}
@media (max-width: 768px) {
    .navbar .container {
        padding: 0 20px;
    }
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-logo .logo-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.nav-logo .logo-icon-img {
    height: 44px; /* 56→44：与单行公司名比例更协调，避免图标头重脚轻 */
    width: auto; /* 290×257 非正方形透明图：锁高按比例自适应 */
    flex-shrink: 0;
    display: block;
}

.nav-logo .logo-text {
    line-height: 1.3;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
}

.nav-logo .logo-text small {
    display: block;
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--text-light);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.nav-menu a {
    padding: 8px 18px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-main);
    border-radius: var(--radius);
    position: relative;
}

.nav-menu a:hover,
.nav-menu a:focus-visible {
    color: var(--primary);
}

.nav-menu a.active {
    color: var(--primary);
}

/* 顶部导航橙色指示条（兼容 Chrome / Edge / Firefox / Safari 等主流浏览器）
   - .nav-indicator        : 当前页常驻条，固定显示在当前所在页菜单文字下方
   - .nav-indicator-hover  : 跟随鼠标条，默认隐藏，鼠标移到某菜单项时显示在其文字下方 */
.nav-indicator {
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
    opacity: 0;
    pointer-events: none;
    z-index: 1200;
    -webkit-transition: left 0.3s ease, width 0.3s ease, opacity 0.2s ease;
    transition: left 0.3s ease, width 0.3s ease, opacity 0.2s ease;
}

/* 跟随鼠标的那条：默认隐藏，悬停时显示；颜色比常驻条更浅 */
.nav-indicator-hover {
    opacity: 0;
    /* 与主题色同色系、但掺白更浅，便于和常驻条区分（不支持 color-mix 的旧浏览器会回退到主题色） */
    background: color-mix(in srgb, var(--accent) 55%, #ffffff);
}
/* 下拉菜单：hover/focus 弹出，子项为对应页面板块标题 */
.nav-menu li.has-dropdown { position: relative; }
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 210px;
    margin: 6px 0 0;
    padding: 8px 0;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px) scale(0.96);
    transform-origin: top center;
    transition: opacity 0.3s var(--ease-spring), transform 0.4s var(--ease-spring);
    z-index: 1100;
    list-style: none;
}
.nav-menu li.has-dropdown:hover .nav-dropdown,
.nav-menu li.has-dropdown:focus-within .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}
.nav-dropdown a {
    display: block;
    padding: 10px 22px;
    color: var(--text-main);
    font-size: 0.92rem;
    white-space: nowrap;
    transition: color var(--transition);
}
.nav-dropdown a:hover,
.nav-dropdown a:focus-visible {
    color: var(--accent);
}
/* 首页透明导航下，下拉项文字须为深色（否则被 .home .navbar .nav-menu a 的白色覆盖，白字白底看不见） */
.home .navbar .nav-dropdown a {
    color: var(--text-main);
}
.home .navbar .nav-dropdown a:hover,
.home .navbar .nav-dropdown a:focus-visible {
    color: var(--accent);
    background: transparent;
}
/* 滚动态下 .home .navbar.scrolled .nav-menu a:hover(0,5,1) 会盖过上面的下拉项 hover(0,4,1)，
   需更高优先级(0,6,1)保证悬停下拉项仍是橙色 */
.home .navbar.scrolled .nav-menu .nav-dropdown a:hover,
.home .navbar.scrolled .nav-menu .nav-dropdown a:focus-visible {
    color: var(--accent);
    background: transparent;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}


/* ---------- 通用区块 ---------- */
.section {
    padding: 80px 0;
}

/* 内页首个区块：拉大与固定导航栏的间距，避免拥挤 */
.section-first {
    padding-top: 128px;
}

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

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header .eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

/* ---------- 小标题两侧装饰：渐隐长线（全局统一，实线端靠文字、向外渐隐） ---------- */
.section-header .eyebrow::before,
.section-header .eyebrow::after {
    content: '';
    display: inline-block;
    vertical-align: middle;
    width: 42px;
    height: 2px;
    margin: 0 12px;
}

.section-header .eyebrow::before {
    background: linear-gradient(to left, var(--dot), transparent);
}

.section-header .eyebrow::after {
    background: linear-gradient(to right, var(--dot), transparent);
}

.section-header h1,
.section-header h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--text-sub);
    max-width: 600px;
    margin: 0 auto;
}


/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

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

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

.btn-accent {
    background: var(--accent);
    color: var(--white);
}

.btn-accent:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.05rem;
}


/* ---------- 首页 Hero（白底 / 左文右图 · 建筑事务所风） ---------- */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    overflow: hidden;
    padding: 120px 0 80px;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    color: var(--white);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(45, 143, 110, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(42, 86, 128, 0.2) 0%, transparent 50%);
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(to top, rgba(15, 37, 64, 0.3) 0%, transparent 100%);
}

/* 首页 hero 背景：城市天际线插画铺满 + 左深右浅深蓝遮罩，保证左侧白色文字可读 */
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("../images/hero-city.webp") right top / cover no-repeat;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    /* 第一层：顶部压暗用 300px 长距离缓出（替代原导航栏 80px 短渐变），
       与照片/遮罩同属 hero 背景层，保证固定导航与背景无缝融合、白字可读 */
    background:
        linear-gradient(to bottom,
            rgba(8, 18, 32, 0.6) 0%,
            rgba(8, 18, 32, 0.28) 140px,
            rgba(8, 18, 32, 0) 300px),
        linear-gradient(115deg,
            rgba(15, 37, 64, 0.92) 0%,
            rgba(21, 48, 78, 0.78) 45%,
            rgba(26, 58, 92, 0.5) 75%,
            rgba(26, 58, 92, 0.35) 100%);
}

.hero .container {
    position: relative;
    z-index: 2;
    width: 100%;
}


/* ---------- 地形线条装饰 ---------- */
.terrain-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 120px;
    z-index: 1;
}

/* 左侧文字 */
.hero-text {
    max-width: 640px;
    animation: fadeInUp 1s ease;
}

.hero-eyebrow {
    display: inline-block;
    position: relative;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent-light);
    padding-left: 32px;
    margin-bottom: 22px;
}

.hero-eyebrow::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 22px;
    height: 2px;
    background: var(--accent-light);
    transform: translateY(-50%);
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.3;
    color: var(--white);
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.hero-text h1 .highlight {
    color: var(--accent-light);
}

.hero-sub {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.9;
    margin-bottom: 36px;
}

.hero-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--white);
    text-decoration: none;
    padding-bottom: 5px;
    border-bottom: 2px solid var(--accent);
    transition: var(--transition);
}

.hero-link .arrow {
    transition: transform 0.3s ease;
}

.hero-link:hover {
    color: var(--accent-light);
}

.hero-link:hover .arrow {
    transform: translateX(6px);
}

/* 信任数据（浅底版本） */
.hero-stats {
    display: flex;
    gap: 44px;
    margin-top: 56px;
    padding-top: 36px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat .num {
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--accent-light);
    line-height: 1.1;
}

.hero-stat .label {
    margin-top: 6px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 992px) {
    .hero-text {
        max-width: 100%;
    }
    .hero-stats {
        flex-wrap: wrap;
        gap: 28px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 100px 0 56px;
    }
    .hero-text h1 {
        font-size: 2rem;
    }
    .hero-stat .num {
        font-size: 1.5rem;
    }
    .hero-stats {
        gap: 18px;
    }
}


/* ---------- 公司简介区 ---------- */
.intro-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 20px;
    font-weight: 700;
}

.intro-text p {
    color: var(--text-sub);
    margin-bottom: 16px;
    line-height: 1.9;
}

.intro-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 28px;
}

.intro-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-main);
}

.intro-feature .check {
    width: 24px;
    height: 24px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: white;
    font-size: 0.75rem;
}

.intro-visual {
    position: relative;
}

/* ---------- 企业动态（左头条 + 右列表，高校官网新闻版式） ---------- */
.news-layout {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 56px;
    align-items: start;
}
.news-more-wrap {
    text-align: right;
    margin-top: 22px;
}
.news-more-wrap .news-more {
    color: var(--text-sub);
    font-size: 0.9rem;
    text-decoration: none;
    transition: color 0.2s ease;
}
.news-more-wrap .news-more:hover {
    color: var(--accent);
}

/* 日期（上下两段：日.月 大字 + 年份小字） */
.news-date {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}
.news-day {
    font-family: 'Bahnschrift', 'DIN Alternate', 'Arial Black', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.02em;
}
.news-year {
    font-size: 0.78rem;
    color: var(--text-sub);
    margin-top: 3px;
}

/* 左侧头条 */
.news-feature-media {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    margin-bottom: 18px;
    box-shadow: var(--shadow-sm);
}
.news-feature-media .news-thumb {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
/* 轮播（左：指示器竖排，放在图外；右：幻灯片） */
.news-carousel {
    display: flex;
    gap: 18px;
    align-items: flex-start;
}
.news-pager-rail {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
    font-family: 'Bahnschrift', 'DIN Alternate', 'Arial Black', sans-serif;
}
.news-pager-rail .np-num {
    display: block;
    background: none;
    border: none;
    border-left: 2px solid var(--border);
    padding: 4px 0 4px 10px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--text-sub);
    opacity: 0.5;
    text-align: left;
    transition: opacity 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.news-pager-rail .np-num:hover {
    opacity: 0.85;
}
.news-pager-rail .np-num.active {
    opacity: 1;
    color: var(--accent);
    border-left-color: var(--accent);
    font-weight: 700;
}
.news-slides {
    flex: 1;
    min-width: 0;
    /* 同格叠放：容器高度取最高一条，切换时不再抖动 */
    display: grid;
}

.news-slide {
    grid-area: 1 / 1;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.45s ease, visibility 0.45s;
}
.news-slide.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    animation: newsFade 0.45s ease;
}
@keyframes newsFade {
    from { opacity: 0; }
    to { opacity: 1; }
}

.news-slide .news-date {
    flex-direction: row;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 8px;
}
.news-feature-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.55;
    margin-bottom: 10px;
    transition: color 0.2s ease;
}
.news-slide:hover .news-feature-title {
    color: var(--accent);
}
.news-feature-summary {
    font-size: 0.85rem;
    color: var(--text-sub);
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 右侧列表 */
.news-item {
    display: flex;
    gap: 22px;
    padding: 17px 0;
    border-bottom: 1px dashed var(--border);
}
.news-item:first-child {
    padding-top: 4px;
}
.news-item:last-child {
    border-bottom: none;
}
.news-item .news-date {
    flex-shrink: 0;
    width: 58px;
}
.news-item-body h4 {
    font-size: 0.96rem;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.55;
    margin-bottom: 6px;
    transition: color 0.2s ease;
}
.news-item:hover .news-item-body h4 {
    color: var(--accent);
}
.news-item-body p {
    font-size: 0.8rem;
    color: var(--text-sub);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (max-width: 900px) {
    .news-layout {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .news-carousel {
        flex-direction: column;
    }
    .news-pager-rail {
        flex-direction: row;
        justify-content: flex-start;
        gap: 18px;
    }
    .news-pager-rail .np-num {
        border-left: none;
        border-bottom: 2px solid var(--border);
        padding: 0 0 4px;
    }
    .news-pager-rail .np-num.active {
        border-left: none;
        border-bottom-color: var(--accent);
    }
    .news-item:first-child {
        padding-top: 0;
        border-top: 1px dashed var(--border);
        margin-top: 14px;
    }
}

.intro-visual .visual-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-lg);
    padding: 48px;
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.intro-visual .visual-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(45, 143, 110, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.visual-card .card-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
}

.visual-card h4 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.visual-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    line-height: 1.8;
}

.visual-card .card-stats {
    display: flex;
    gap: 32px;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.visual-card .card-stat .num {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-light);
}

.visual-card .card-stat .label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
}


/* ---------- 核心业务卡片（一行 4 个，整齐网格，便于对比） ---------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}


.service-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

/* 悬停：橙色描边 + 与服务页案例卡一致的浮动效果（上浮 4px + 弹性曲线）
   注：.fade-in.visible 的 transform（base.css 后加载）会覆盖单类选择器，
   故用 .service-card.fade-in:hover 提高优先级 */
.service-card:hover,
.service-card.fade-in:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-card .icon-wrap {
    width: 44px;
    height: 44px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: var(--transition);
}

.service-card .icon-wrap svg {
    width: 26px;
    height: 26px;
    transition: var(--transition);
}

.service-card:hover .icon-wrap svg path,
.service-card:hover .icon-wrap svg circle,
.service-card:hover .icon-wrap svg rect,
.service-card:hover .icon-wrap svg line,
.service-card:hover .icon-wrap svg ellipse {
    stroke: var(--accent);
}

.service-card h3 {
    font-size: 1.25rem;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 700;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-sub);
    line-height: 1.8;
    margin-bottom: 16px;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    display: inline-block;
    font-size: 0.78rem;
    padding: 4px 12px;
    background: var(--bg-light);
    color: var(--primary-light);
    border: 1px solid var(--border);
    border-radius: 999px;
}


/* ---------- 资质优势（数据面板叠加在地图右侧空白处） ---------- */
.coverage { position: relative; }
.advantages-grid {
    position: absolute;
    right: 5%;
    top: 36px; /* 与地图顶边（ECharts 画布内边距）对齐 */
    z-index: 10;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    gap: 34px;
}

.advantage-item {
    display: flex;
    flex-direction: column;
    text-align: left;
    padding: 0;
    background: none;
    border: 0;
}

.advantage-item .num {
    /* 与关于页 .eq-count 同款：DIN 风格斜体数字 */
    font-family: 'Bahnschrift', 'DIN Alternate', 'Impact', 'Arial Black', sans-serif;
    font-style: italic;
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--accent);
    line-height: 1.1;
}

.advantage-item .unit {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent);
    margin-left: 2px;
}

.advantage-item .label {
    order: -1;
    font-size: 0.9rem;
    color: var(--text-sub);
    margin: 0 0 2px;
}

/* ---------- 业务覆盖（江苏区县级地图） ---------- */
.coverage {
    margin: 8px auto 48px;
    max-width: var(--max-width);
}
.coverage-map-wrap {
    display: flex;
    gap: 18px;
    align-items: stretch;
    position: relative;
}
.coverage-chart {
    flex: 1;
    min-width: 0;
    height: 540px;
}
.coverage-legend {
    position: absolute;
    left: 12%;
    bottom: 52px; /* 图内左下角：向上移，避让南京地名 */
    width: auto;
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
    font-size: 0.92rem;
    color: var(--text-main);
}
.coverage-legend li {
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
}
.coverage-legend .lg {
    flex: none;
    width: 16px;
    height: 16px;
}
.lg-head {
    background: #f08a1e;
    border-radius: 50% 50% 50% 0;
    transform: rotate(-45deg); /* 图钉形：三圆角+一尖角朝下 */
    position: relative;
}
.lg-head::after {
    content: '';
    position: absolute;
    inset: 4px;
    background: #fff;
    border-radius: 50%;
}
.lg-branch {
    background: #f08a1e;
    border-radius: 50%;
    box-shadow: 0 0 0 2px #fff inset;
}
.lg-cov {
    background: #fad3ae; /* 与地图已覆盖区县填充色一致 */
    border: 1px solid #f0a860;
    border-radius: 3px;
}
/* ---------- 业务覆盖区县列表（动态生成） ---------- */
.coverage-areas {
    margin-top: 28px;
    padding-top: 22px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: flex-start; /* 一市一行，左对齐 */
    gap: 10px;
    text-align: left;
}
.coverage-areas .area-row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 4px 8px;
    font-size: 0.95rem;
    line-height: 1.5;
}
.coverage-areas .area-city {
    font-weight: 700;
    color: var(--primary);
}
.coverage-areas .area-city::after { content: '：'; }
.coverage-areas .area-counties { color: var(--text-sub); }
.coverage-areas a.area-city,
.coverage-areas .area-link {
    text-decoration: none;
    transition: color 0.2s ease;
}
.coverage-areas a.area-city:hover { color: var(--accent); }
.coverage-areas .area-link:hover {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

@media (max-width: 768px) {
    .coverage-map-wrap { flex-direction: column; }
    .coverage-chart { height: 380px; }
    .coverage-legend {
        position: static;
        width: auto;
        margin-top: 0;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px 18px;
    }
    .coverage { position: static; }
    .coverage-areas { gap: 8px; }
    .advantages-grid {
        position: static;
        transform: none;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 18px 40px;
        margin-top: 4px;
    }
    .advantage-item { text-align: center; align-items: center; }
    .advantage-item .num { font-size: 1.8rem; }
}


@media (max-width: 992px) {
    .services-layout { grid-template-columns: 1fr; }
    .service-nav { margin-bottom: 24px; }
    .service-nav ul { flex-direction: row; flex-wrap: wrap; }
    .service-nav-item { width: auto; }
}