/* ==========================================================================
   江西布泉建设工程有限公司 · 企业级官网视觉系统
   设计目标：专业可信、结构清晰、移动优先、组件可复用
   ========================================================================== */

:root {
    /* 品牌色板 */
    --brand-primary: #0f3d65;
    --brand-primary-dark: #0a2b46;
    --brand-secondary: #ed9b33;
    --brand-tertiary: #1db1d3;
    --brand-neutral-900: #0b1623;
    --brand-neutral-700: #213447;
    --brand-neutral-500: #5b6b7c;
    --brand-neutral-300: #c7d2de;
    --brand-neutral-200: #dfe6ee;
    --brand-neutral-100: #f4f7fb;
    --brand-white: #ffffff;
    --brand-success: #229b61;
    --brand-warning: #f0a500;
    --brand-danger: #d64541;

    /* 字体与排版 */
    --font-sans: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
    --font-serif: "Source Serif Pro", "Songti SC", "SimSun", serif;
    --font-base-size: 16px;
    --font-big: clamp(2.5rem, 4vw, 3.5rem);
    --font-xl: clamp(2rem, 3vw, 2.75rem);
    --font-lg: clamp(1.5rem, 2.6vw, 2rem);
    --font-md: clamp(1.25rem, 2vw, 1.5rem);
    --font-sm: 0.95rem;
    --font-xs: 0.85rem;
    --line-height-tight: 1.25;
    --line-height-base: 1.65;

    /* 间距体系 */
    --space-2xs: 0.375rem;
    --space-xs: 0.625rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-xxl: clamp(4rem, 5vw, 5.5rem);

    /* 阴影与圆角 */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-pill: 999px;
    --shadow-sm: 0 4px 12px rgba(15, 61, 101, 0.08);
    --shadow-md: 0 12px 32px rgba(15, 61, 101, 0.12);
    --shadow-lg: 0 24px 60px rgba(15, 61, 101, 0.16);

    /* 其他 */
    --container-width: min(1200px, 92vw);
    --container-wide: min(1400px, 92vw);
    --transition-base: all 0.28s ease;
    --transition-fast: all 0.18s ease;
    --transition-slow: all 0.45s ease;
}

/* ==========================================================================
   全局基础样式
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: var(--font-base-size);
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--brand-neutral-900);
    background-color: var(--brand-neutral-100);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    display: block;
    border-radius: var(--radius-md);
}

svg {
    width: 100%;
    height: auto;
}

a {
    color: var(--brand-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--brand-secondary);
}

ul,
ol {
    padding-left: 1.25rem;
}

p {
    margin: 0 0 var(--space-md);
    color: var(--brand-neutral-700);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans);
    color: var(--brand-neutral-900);
    margin: 0 0 var(--space-sm);
    line-height: var(--line-height-tight);
}

h1 {
    font-size: var(--font-big);
}

h2 {
    font-size: var(--font-xl);
}

h3 {
    font-size: var(--font-lg);
}

h4 {
    font-size: var(--font-md);
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

strong {
    font-weight: 600;
    color: var(--brand-neutral-900);
}

main {
    margin-top: 88px;
}

.container {
    width: var(--container-width);
    margin: 0 auto;
}

.container-wide {
    width: var(--container-wide);
    margin: 0 auto;
}

.section {
    padding: var(--space-xxl) 0;
}

.section--light {
    background-color: var(--brand-white);
}

.section--muted {
    background-color: var(--brand-neutral-100);
}

.section--dark {
    background: linear-gradient(135deg, var(--brand-primary-dark), #0d2740);
    color: var(--brand-white);
}

.section--dark p {
    color: rgba(255, 255, 255, 0.82);
}

.section-heading {
    max-width: 720px;
    margin: 0 auto var(--space-xl);
    text-align: center;
}

.section-heading .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-2xs) var(--space-sm);
    border-radius: var(--radius-pill);
    background: rgba(237, 155, 51, 0.12);
    color: var(--brand-secondary);
    font-size: var(--font-xs);
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.section-heading h2 {
    margin-top: var(--space-sm);
}

.section-heading p {
    margin-top: var(--space-sm);
}

/* ==========================================================================
   导航栏
   ========================================================================== */

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: saturate(180%) blur(18px);
    box-shadow: 0 2px 12px rgba(15, 61, 101, 0.08);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

nav.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 12px 24px rgba(15, 61, 101, 0.15);
}

.navbar {
    width: var(--container-wide);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
    padding: var(--space-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: clamp(1.05rem, 1.8vw, 1.25rem);
    color: var(--brand-primary);
    letter-spacing: 0.02em;
    line-height: 1.3;
}

.logo span {
    position: relative;
    padding-left: var(--space-sm);
    white-space: normal;
}

.logo span::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    border-radius: var(--radius-pill);
    background: linear-gradient(180deg, var(--brand-tertiary), var(--brand-secondary));
    box-shadow: 0 0 0 4px rgba(29, 177, 211, 0.18);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    font-size: 0.98rem;
    color: var(--brand-neutral-700);
    font-weight: 600;
    padding: var(--space-2xs) var(--space-xs);
    border-radius: var(--radius-pill);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
}

.nav-link::after {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: transparent;
    transition: var(--transition-fast);
}

.nav-item:hover .nav-link,
.nav-item:focus-within .nav-link {
    color: var(--brand-primary);
}

.nav-item:hover .nav-link::after,
.nav-item:focus-within .nav-link::after,
.nav-link.active::after {
    background: var(--brand-secondary);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    min-width: 220px;
    background: var(--brand-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    list-style: none;
    margin: 0;
    padding: var(--space-sm) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-base);
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu,
.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: var(--space-sm) var(--space-lg);
    color: var(--brand-neutral-700);
    font-weight: 500;
    transition: var(--transition-fast);
}

.dropdown-item:hover {
    background: rgba(15, 61, 101, 0.05);
    color: var(--brand-primary);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.hamburger span {
    width: 26px;
    height: 2px;
    background-color: var(--brand-primary);
    border-radius: var(--radius-pill);
    transition: transform 0.25s ease;
}

/* ==========================================================================
   按钮与标签
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2xs);
    padding: 0.85rem 1.65rem;
    border-radius: var(--radius-pill);
    border: 1px solid transparent;
    background: var(--brand-primary);
    color: var(--brand-white);
    font-weight: 600;
    font-size: 0.98rem;
    transition: var(--transition-base);
    cursor: pointer;
}

.btn:hover {
    background: var(--brand-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn:active {
    transform: translateY(0);
    box-shadow: none;
}

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

.btn-secondary:hover {
    background: #d98824;
}

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

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

.btn-ghost {
    background: transparent;
    color: var(--brand-primary);
    border-color: rgba(15, 61, 101, 0.3);
}

.btn-ghost:hover {
    color: var(--brand-secondary);
    border-color: var(--brand-secondary);
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
    padding: var(--space-2xs) var(--space-sm);
    border-radius: var(--radius-pill);
    font-size: var(--font-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.badge--primary {
    background: rgba(15, 61, 101, 0.09);
    color: var(--brand-primary);
}

.badge--success {
    background: rgba(34, 155, 97, 0.12);
    color: var(--brand-success);
}

.badge--outline {
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: rgba(255, 255, 255, 0.92);
}

/* ==========================================================================
   网格与布局工具
   ========================================================================== */

.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.grid-align-center {
    align-items: center;
}

.media {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
}

.media--reverse {
    direction: rtl;
    text-align: left;
}

.media--reverse > * {
    direction: ltr;
}

.split {
    display: flex;
    gap: var(--space-xl);
}

.split > * {
    flex: 1;
}

.stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.stack-lg {
    gap: var(--space-lg);
}

.stack-xl {
    gap: var(--space-xl);
}

.pill-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.pill-list li {
    list-style: none;
    background: rgba(15, 61, 101, 0.08);
    color: var(--brand-primary);
    padding: var(--space-2xs) var(--space-sm);
    border-radius: var(--radius-pill);
    font-size: var(--font-xs);
    font-weight: 600;
}

.list-check {
    list-style: none;
    padding: 0;
    margin: 0;
}

.list-check li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: var(--space-sm);
    color: var(--brand-neutral-700);
}

.list-check li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--brand-success);
    font-weight: 700;
}

.list-numbered {
    counter-reset: section;
    padding: 0;
}

.list-numbered li {
    list-style: none;
    position: relative;
    padding-left: 3.25rem;
    margin-bottom: var(--space-lg);
}

.list-numbered li::before {
    counter-increment: section;
    content: counter(section);
    position: absolute;
    left: 0;
    top: -6px;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--radius-pill);
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    color: var(--brand-white);
    display: grid;
    place-items: center;
    font-weight: 600;
}

/* ==========================================================================
   卡片与信息模块
   ========================================================================== */

.card {
    background: var(--brand-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--space-lg);
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 1px solid rgba(15, 61, 101, 0.06);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.card-image {
    border-radius: var(--radius-md);
    overflow: hidden;
    height: 220px;
    object-fit: cover;
}

.card .card-heading {
    font-size: 1.2rem;
    margin-bottom: var(--space-xs);
}

.card .card-subtitle {
    font-size: var(--font-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--brand-secondary);
    text-transform: uppercase;
}

.card .card-meta {
    font-size: var(--font-xs);
    color: var(--brand-neutral-500);
}

.card-footer {
    margin-top: auto;
}

.card--bordered {
    box-shadow: none;
    border: 1px solid rgba(15, 61, 101, 0.12);
}

.card--accent {
    background: linear-gradient(145deg, rgba(15, 61, 101, 0.04), rgba(29, 177, 211, 0.12));
}

.quote-card {
    background: var(--brand-white);
    padding: var(--space-lg);
    border-left: 4px solid var(--brand-secondary);
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-lg);
}

.stat-group {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.stat-card {
    background: var(--brand-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: "";
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(237, 155, 51, 0.12);
    right: -40px;
    top: -40px;
}

.stat-card strong {
    font-size: 2.4rem;
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--brand-primary);
}

.stat-card span {
    color: var(--brand-neutral-500);
    font-size: var(--font-xs);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-weight: 600;
}

.stat-highlights {
    display: grid;
    gap: var(--space-sm);
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.stat-highlights .stat-metric {
    display: grid;
    gap: var(--space-2xs);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.08);
    color: var(--brand-white);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-highlights .stat-metric strong {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--brand-secondary);
}

.stat-highlights .stat-metric em {
    font-style: normal;
    font-size: var(--font-xs);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.72);
}

.stat-highlight-grid {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.stat-highlight-item {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    display: grid;
    gap: var(--space-2xs);
}

.stat-highlight-item strong {
    font-size: 1.5rem;
    color: var(--brand-secondary);
    font-weight: 700;
}

.stat-highlight-item span {
    font-size: var(--font-xs);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.78);
}

.timeline {
    position: relative;
    padding-left: var(--space-xl);
    border-left: 2px solid rgba(15, 61, 101, 0.12);
    display: grid;
    gap: var(--space-lg);
}

.timeline-item {
    position: relative;
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: calc(-1 * var(--space-xl));
    top: 4px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--brand-secondary);
    box-shadow: 0 0 0 6px rgba(237, 155, 51, 0.15);
}

.timeline-item h4 {
    margin-bottom: var(--space-2xs);
}

.partner-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    align-items: center;
}

.partner-card {
    background: var(--brand-white);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    border: 1px solid rgba(15, 61, 101, 0.08);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.partner-card img {
    max-height: 60px;
    width: auto;
    margin: 0 auto;
    border-radius: 0;
}

.feature-list {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.feature-item {
    background: var(--brand-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

.feature-item .icon-circle {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(15, 61, 101, 0.12), rgba(237, 155, 51, 0.15));
    display: grid;
    place-items: center;
    font-size: 1.2rem;
    margin-bottom: var(--space-sm);
    color: var(--brand-primary);
}

.project-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    background: var(--brand-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.project-card img {
    border-radius: 0;
    height: 240px;
    object-fit: cover;
    width: 100%;
}

.project-card .project-body {
    padding: var(--space-lg);
}

.project-card .project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    font-size: var(--font-xs);
    color: var(--brand-neutral-500);
}

.news-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.news-card {
    background: var(--brand-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.news-card img {
    max-height: 180px;
    object-fit: cover;
    border-radius: 0;
}

.news-card .news-body {
    padding: var(--space-lg);
}

.news-card time {
    font-size: var(--font-xs);
    color: var(--brand-neutral-500);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.news-list {
    display: grid;
    gap: var(--space-md);
}

.news-list-item {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    background: rgba(15, 61, 101, 0.04);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    transition: var(--transition-base);
}

.news-list-item:hover {
    background: rgba(15, 61, 101, 0.08);
}

.cta-banner {
    background: linear-gradient(140deg, rgba(15, 61, 101, 0.95), rgba(12, 42, 70, 0.94));
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    color: var(--brand-white);
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
}

.cta-banner h3 {
    color: var(--brand-white);
    margin-bottom: var(--space-xs);
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.82);
    margin: 0;
}

.cta-banner .btn-group .btn {
    border-color: rgba(255, 255, 255, 0.4);
}

.cta-banner .btn-group .btn:hover {
    border-color: var(--brand-secondary);
}

.quote {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--brand-neutral-700);
}

.quote cite {
    display: block;
    margin-top: var(--space-sm);
    font-style: normal;
    font-size: var(--font-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--brand-neutral-500);
}

.tabs {
    border-radius: var(--radius-lg);
    background: var(--brand-white);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.tabs-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    border-bottom: 1px solid rgba(15, 61, 101, 0.08);
}

.tabs-nav button {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: transparent;
    font-weight: 600;
    color: var(--brand-neutral-500);
    cursor: pointer;
    transition: var(--transition-fast);
}

.tabs-nav button.is-active {
    color: var(--brand-primary);
    background: rgba(15, 61, 101, 0.06);
}

.tabs-content {
    padding: var(--space-lg);
}

.table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table thead {
    background: rgba(15, 61, 101, 0.08);
}

.table th,
.table td {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    color: var(--brand-neutral-700);
}

.table tbody tr:nth-child(even) {
    background: rgba(15, 61, 101, 0.04);
}

/* ==========================================================================
   首页专用模块

.hero-simple {
    max-width: 640px;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.hero-simple p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

.hero-simple .btn-group {
    gap: var(--space-sm);
}

   ========================================================================== */

.hero {
    position: relative;
    padding: clamp(7rem, 14vw, 11rem) 0 clamp(5rem, 10vw, 8rem);
    color: var(--brand-white);
    background:
        linear-gradient(145deg, rgba(8, 32, 54, 0.94), rgba(15, 61, 101, 0.82)),
        url("../images/TnE0xHuP1BoE.jpg");
    background-size: cover;
    background-position: center;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(29, 177, 211, 0.25), rgba(237, 155, 51, 0.2));
    mix-blend-mode: lighten;
}

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

.hero-layout {
    display: grid;
    gap: var(--space-xl);
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: stretch;
}

.hero-left {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    max-width: 640px;
}

.hero-left .pill-list {
    margin-top: calc(-1 * var(--space-xs));
}

.hero-left .btn-group .btn-outline {
    border-color: rgba(255, 255, 255, 0.4);
}

.hero-left .btn-group .btn-outline:hover {
    border-color: var(--brand-secondary);
}

.hero-left p {
    color: rgba(255, 255, 255, 0.88);
    margin: 0;
}

.hero-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-lg);
}

.hero-meta-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xs);
}

.hero-meta-item strong {
    font-size: 2.4rem;
    color: var(--brand-secondary);
    font-weight: 700;
}

.hero-meta-item span {
    font-size: var(--font-xs);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.78);
}

.hero-right {
    display: flex;
    justify-content: flex-end;
}

.executive-card {
    background: rgba(12, 42, 70, 0.78);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(14px);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    max-width: 520px;
}

.executive-card header {
    display: grid;
    gap: var(--space-sm);
}

.executive-card h3 {
    color: var(--brand-white);
    margin: 0;
}

.executive-card p {
    color: rgba(255, 255, 255, 0.82);
    margin: 0;
}

.executive-card .list-check li {
    color: rgba(255, 255, 255, 0.8);
}

.executive-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    padding-top: var(--space-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.executive-footer strong {
    color: var(--brand-white);
}

.executive-footer span {
    display: block;
    font-size: var(--font-xs);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.65);
}

.logo-cloud {
    display: grid;
    gap: var(--space-md);
    justify-items: center;
    text-align: center;
}

.logo-cloud span {
    font-size: var(--font-xs);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--brand-neutral-500);
}

.logo-cloud-strip {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    align-items: center;
    width: 100%;
}

.logo-cloud-strip img {
    max-height: 42px;
    justify-self: center;
    opacity: 0.78;
    transition: var(--transition-fast);
    filter: grayscale(100%);
}

.logo-cloud-strip img:hover {
    opacity: 1;
    filter: grayscale(0%);
}

.service-showcase {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.service-card {
    position: relative;
    overflow: hidden;
}

.service-card img {
    height: 260px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.service-card .overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(175deg, rgba(12, 42, 70, 0.15), rgba(12, 42, 70, 0.75));
    border-radius: inherit;
}

.service-card .content {
    position: absolute;
    inset: 0;
    padding: var(--space-lg);
    color: var(--brand-white);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: var(--space-sm);
}

.service-card .content p {
    color: rgba(255, 255, 255, 0.82);
    margin: 0;
}

.service-card .link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
    font-weight: 600;
    color: var(--brand-white);
}

.insight-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.insight-card {
    background: var(--brand-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

.insight-card h4 {
    margin-bottom: var(--space-xs);
}

.insight-card span {
    font-size: var(--font-xs);
    color: var(--brand-neutral-500);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.map-card {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: center;
    background: var(--brand-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

.map-card img {
    width: 100%;
    border-radius: var(--radius-md);
}

.map-card-content {
    display: grid;
    gap: var(--space-md);
}

.map-card-content .list-check li {
    color: var(--brand-neutral-700);
}

/* ==========================================================================
   页面通用头图
   ========================================================================== */

.page-header {
    position: relative;
    padding: clamp(5rem, 10vw, 8rem) 0 clamp(3rem, 6vw, 4rem);
    color: var(--brand-white);
    background:
        linear-gradient(140deg, rgba(12, 42, 70, 0.9), rgba(15, 61, 101, 0.82)),
        var(--page-header-image, linear-gradient(120deg, #0f3d65, #0a2b46));
    background-size: cover;
    background-position: center;
}

.page-header .container {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: end;
}

.page-header h1 {
    color: var(--brand-white);
}

.page-header p {
    color: rgba(255, 255, 255, 0.85);
}

.page-header .summary {
    backdrop-filter: blur(10px);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    background: rgba(12, 42, 70, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2xs);
    font-size: var(--font-xs);
    color: var(--brand-neutral-500);
    align-items: center;
}

.breadcrumb a {
    color: var(--brand-neutral-500);
}

.breadcrumb span.separator {
    color: rgba(15, 61, 101, 0.25);
}

.page-content {
    display: grid;
    gap: var(--space-xl);
}

.page-layout {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(240px, 1fr);
    gap: var(--space-xl);
    align-items: start;
}

.sidebar {
    position: sticky;
    top: 110px;
    display: grid;
    gap: var(--space-md);
}

.sidebar-card {
    background: var(--brand-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

.sidebar-card h4 {
    margin-bottom: var(--space-sm);
}

.contact-card {
    display: grid;
    gap: var(--space-sm);
    background: linear-gradient(160deg, rgba(15, 61, 101, 0.95), rgba(12, 42, 70, 0.9));
    color: var(--brand-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
}

.contact-card h4 {
    color: var(--brand-white);
}

.contact-card p {
    color: rgba(255, 255, 255, 0.78);
}

.contact-card a {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

/* ==========================================================================
   表单
   ========================================================================== */

form {
    display: grid;
    gap: var(--space-md);
}

label {
    font-weight: 600;
    color: var(--brand-neutral-700);
}

input,
textarea,
select {
    width: 100%;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(15, 61, 101, 0.18);
    background: var(--brand-white);
    font-size: 1rem;
    transition: var(--transition-fast);
    font-family: var(--font-sans);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--brand-secondary);
    box-shadow: 0 0 0 4px rgba(237, 155, 51, 0.15);
}

textarea {
    resize: vertical;
    min-height: 160px;
}

.form-grid {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

/* ==========================================================================
   页脚
   ========================================================================== */

footer {
    background: linear-gradient(160deg, #081c2b, #0c2c43);
    color: rgba(255, 255, 255, 0.82);
    padding: var(--space-xxl) 0 var(--space-xl);
    margin-top: var(--space-xxl);
}

.footer-content {
    width: var(--container-wide);
    margin: 0 auto var(--space-xl);
    display: grid;
    gap: var(--space-xl);
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.footer-brand {
    display: grid;
    gap: var(--space-sm);
}

.footer-brand h3 {
    color: var(--brand-white);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.72);
}

.footer-section h4 {
    color: var(--brand-white);
    margin-bottom: var(--space-sm);
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: var(--space-xs);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.72);
    font-size: var(--font-sm);
}

.footer-section a:hover {
    color: var(--brand-secondary);
}

.footer-bottom {
    width: var(--container-wide);
    margin: 0 auto;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: space-between;
    font-size: var(--font-xs);
}

.footer-bottom p {
    margin: 0;
    color: rgba(255, 255, 255, 0.65);
}

/* ==========================================================================
   交互元素
   ========================================================================== */

.scroll-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    background: var(--brand-primary);
    color: var(--brand-white);
    border: none;
    padding: 0.85rem 1.2rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: var(--transition-fast);
    z-index: 999;
}

.scroll-to-top:hover {
    background: var(--brand-secondary);
}

.scroll-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.fade-in {
    animation: fadeUp 0.6s ease forwards;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   媒体查询
   ========================================================================== */

@media (max-width: 1200px) {
    .navbar {
        width: var(--container-width);
    }

    .hero-layout,
    .page-header .container {
        grid-template-columns: 1fr;
    }

    .hero-right {
        justify-content: flex-start;
    }

    .executive-card {
        max-width: none;
    }

    .page-header .summary {
        order: 2;
    }
}

@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        inset: 80px 0 auto 0;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        align-items: stretch;
        padding: var(--space-lg);
        gap: var(--space-sm);
        transform: translateY(-18px);
        box-shadow: 0 18px 40px rgba(8, 27, 42, 0.18);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        opacity: 0;
        visibility: hidden;
    }

    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        margin-top: 0;
        padding: 0;
        border-radius: var(--radius-md);
        border: 1px solid rgba(15, 61, 101, 0.08);
    }

    .dropdown-item {
        padding: var(--space-sm) var(--space-md);
    }

    .hamburger {
        display: flex;
    }

    .grid-3,
    .grid-4,
    .grid-2,
    .media {
        grid-template-columns: 1fr;
    }

    .page-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .hero-layout {
        gap: var(--space-xl);
    }

    .map-card {
        grid-template-columns: 1fr;
    }

    .executive-card {
        padding: var(--space-lg);
    }
}

@media (max-width: 768px) {
    main {
        margin-top: 72px;
    }

    .section {
        padding: var(--space-xl) 0;
    }

    .section-heading {
        text-align: left;
    }

    .cta-banner {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-xs);
        align-items: flex-start;
    }

    .timeline {
        padding-left: var(--space-lg);
    }

    .timeline-item::before {
        left: calc(-1 * var(--space-lg));
    }

    .hero-meta {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

    .logo-cloud-strip {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
}

@media (max-width: 560px) {
    .btn-group {
        flex-direction: column;
        width: 100%;
    }

    .btn-group .btn {
        width: 100%;
        justify-content: center;
    }

    .stat-card strong {
        font-size: 2rem;
    }

    .hero-meta-item strong {
        font-size: 2rem;
    }

    .news-card img {
        max-height: 160px;
    }
}

.page-header .summary .list-check {
    padding: 0;
    margin: 0;
}

.page-header .summary .list-check li {
    color: rgba(255, 255, 255, 0.92);
}

.page-header .summary .list-check li::before {
    color: rgba(255, 255, 255, 0.9);
}