/* ============================================
   新疆科凯工程咨询有限公司 - 高端企业官网
   ============================================ */

/* === 基础变量 === */
:root {
    --primary: #1a3a5c;
    --primary-mid: #1e4d7b;
    --primary-light: #2563a0;
    --accent: #c9953c;
    --accent-light: #e0b35c;
    --accent-glow: rgba(201, 149, 60, 0.15);
    --bg-base: #ffffff;
    --bg-hero: #0b1d35;
    --bg-section: #f7f9fc;
    --bg-card: #ffffff;
    --text-primary: #1a2332;
    --text-secondary: #4a5568;
    --text-muted: #8896a7;
    --text-on-dark: #e8edf4;
    --text-on-dark-muted: #94a8c0;
    --border-light: rgba(26, 58, 92, 0.08);
    --border-gold: rgba(201, 149, 60, 0.2);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08);
    --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.10);
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --font-display: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --max-width: 1180px;
}

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

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

body {
    font-family: var(--font-display);
    background: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}

a {
    color: inherit;
    text-decoration: none;
}

img { max-width: 100%; }

/* === 动画 === */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

@keyframes scrollDown {
    0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
    45% { transform: scaleY(1); transform-origin: top; opacity: 1; }
    55% { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
    100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

@keyframes gentleFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes lineExpand {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

/* === 导航栏 === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 24px 0;
    transition: all 0.4s ease;
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--border-light);
    padding: 14px 0;
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.04);
}

.navbar.scrolled .nav-links a {
    color: var(--text-secondary);
}

.navbar.scrolled .nav-links a:hover,
.navbar.scrolled .nav-links a.active {
    color: var(--primary-mid);
}

.navbar.scrolled .logo-name {
    color: var(--text-primary);
}

.navbar.scrolled .logo-sub {
    color: var(--text-muted);
}

.navbar.scrolled .logo-icon {
    color: var(--primary);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-icon {
    width: 38px;
    height: 38px;
    color: #e8edf4;
    transition: color var(--transition);
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

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

.logo-name {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--text-on-dark);
    transition: color var(--transition);
}

.logo-sub {
    font-size: 9px;
    color: var(--text-on-dark-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
    transition: color var(--transition);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
}

.nav-links a {
    display: block;
    padding: 8px 18px;
    font-size: 13.5px;
    color: rgba(232, 237, 244, 0.75);
    border-radius: 8px;
    transition: all var(--transition);
    font-weight: 400;
    letter-spacing: 0.5px;
}

.nav-links a:hover,
.nav-links a.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* === Hero 区域 === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(165deg, #071428 0%, #0b1d35 30%, #112a4a 60%, #0f2240 100%);
}

.hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.6;
}

/* 金色光晕装饰 */
.hero::before {
    content: '';
    position: absolute;
    top: 15%;
    right: 15%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(201, 149, 60, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 2;
    animation: gentleFloat 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 10%;
    left: 10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(30, 77, 123, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 40%, transparent 30%, rgba(7, 20, 40, 0.5) 80%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 140px 24px 100px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    background: rgba(201, 149, 60, 0.08);
    border: 1px solid rgba(201, 149, 60, 0.2);
    border-radius: 50px;
    font-size: 12.5px;
    color: var(--accent-light);
    letter-spacing: 1.5px;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-out;
    text-transform: uppercase;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2.5s ease-in-out infinite;
}

.hero-title {
    font-size: clamp(38px, 6.5vw, 68px);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 28px;
    color: #ffffff;
    animation: fadeInUp 1s ease-out 0.15s both;
    letter-spacing: -1px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-light) 0%, #f0d078 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: clamp(15px, 1.8vw, 17px);
    color: var(--text-on-dark-muted);
    max-width: 580px;
    margin: 0 auto 48px;
    line-height: 1.9;
    animation: fadeInUp 1s ease-out 0.3s both;
    letter-spacing: 0.3px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 80px;
    animation: fadeInUp 1s ease-out 0.45s both;
}

/* === 按钮 === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 32px;
    border-radius: 10px;
    font-size: 14.5px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    font-family: inherit;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    color: #0b1d35;
    box-shadow: 0 4px 20px rgba(201, 149, 60, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 8px 32px rgba(201, 149, 60, 0.35);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: var(--text-on-dark);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.35);
    transform: translateY(-3px);
}

.btn-outline-light {
    background: transparent;
    color: var(--primary-mid);
    border: 1px solid var(--border-light);
}

.btn-outline-light:hover {
    background: rgba(26, 58, 92, 0.04);
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

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

/* === Hero 统计 === */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    animation: fadeInUp 1s ease-out 0.6s both;
    padding-top: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    max-width: 500px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
}

.stat-num {
    font-size: 38px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-light), #f0d078);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.stat-suffix {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-light), #f0d078);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 12px;
    color: var(--text-on-dark-muted);
    margin-top: 6px;
    letter-spacing: 1px;
}

.stat-divider {
    width: 1px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
}

/* === Hero 滚动指示 === */
.hero-scroll {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-line {
    width: 1.5px;
    height: 44px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    opacity: 0.5;
    animation: scrollDown 2.5s ease-in-out infinite;
}

.hide-mobile {
    display: inline;
}

/* === Section 通用 === */
.section {
    padding: 120px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 72px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 18px;
    background: transparent;
    border: 1px solid var(--border-gold);
    border-radius: 50px;
    font-size: 11px;
    font-weight: 500;
    color: var(--accent);
    letter-spacing: 3px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.section-tag::before {
    content: '';
    display: block;
    width: 16px;
    height: 1px;
    background: var(--accent);
}

.section-tag::after {
    content: '';
    display: block;
    width: 16px;
    height: 1px;
    background: var(--accent);
}

.section-title {
    font-size: clamp(30px, 4vw, 42px);
    font-weight: 800;
    margin-bottom: 18px;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.8;
}

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

/* === 核心业务 === */
.services {
    background: var(--bg-section);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 40px 36px;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 30% 0%, var(--accent-glow) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--border-gold);
}

.service-card:hover::before,
.service-card:hover::after {
    opacity: 1;
}

.service-card.featured {
    border-color: var(--border-gold);
    background: linear-gradient(165deg, rgba(201, 149, 60, 0.02) 0%, var(--bg-card) 50%);
}

.service-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    padding: 5px 14px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: #0b1d35;
    font-size: 11px;
    font-weight: 600;
    border-radius: 50px;
    letter-spacing: 0.5px;
}

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--accent);
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.service-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.service-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.service-tags span {
    padding: 5px 14px;
    background: rgba(26, 58, 92, 0.04);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.3px;
}

/* === AI工具资源库 === */
.tools-section {
    background: var(--bg-base);
}

.tools-filter {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 52px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 9px 22px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 13.5px;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
    letter-spacing: 0.3px;
}

.filter-btn:hover {
    border-color: var(--border-gold);
    color: var(--primary-mid);
}

.filter-btn.active {
    color: #0b1d35;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    border-color: var(--accent);
    font-weight: 500;
    box-shadow: 0 2px 12px rgba(201, 149, 60, 0.2);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s ease;
    display: flex;
    flex-direction: column;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--border-gold);
}

.tool-card.hidden {
    display: none;
}

.tool-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 18px;
}

.tool-icon-wrap {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-icon-wrap svg {
    width: 24px;
    height: 24px;
}

.tool-status {
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 500;
}

.tool-status-active {
    background: rgba(16, 185, 129, 0.08);
    color: #059669;
    border: 1px solid rgba(16, 185, 129, 0.15);
}

.tool-status-dev {
    background: rgba(201, 149, 60, 0.08);
    color: #b8860b;
    border: 1px solid rgba(201, 149, 60, 0.15);
}

.tool-status-plan {
    background: rgba(26, 58, 92, 0.05);
    color: var(--text-muted);
    border: 1px solid var(--border-light);
}

.tool-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.tool-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 18px;
    flex: 1;
}

.tool-features {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.tool-features span {
    padding: 4px 11px;
    background: rgba(26, 58, 92, 0.03);
    border-radius: 5px;
    font-size: 11px;
    color: var(--text-muted);
}

.tool-link {
    font-size: 13px;
    color: var(--accent);
    font-weight: 500;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.tool-link:hover {
    color: var(--accent-light);
    transform: translateX(4px);
}

/* === 行业优势 === */
.advantages {
    background: var(--bg-hero);
    position: relative;
    overflow: hidden;
}

.advantages::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(201, 149, 60, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.advantages .section-tag {
    color: var(--accent-light);
    border-color: rgba(201, 149, 60, 0.25);
}

.advantages .section-title {
    color: #ffffff;
}

.advantages .section-desc {
    color: var(--text-on-dark-muted);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.advantage-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    padding: 36px 28px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.advantage-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    transform: scaleX(0);
    transition: transform 0.5s ease;
}

.advantage-card:hover::after {
    transform: scaleX(1);
}

.advantage-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(201, 149, 60, 0.15);
    transform: translateY(-4px);
}

.adv-number {
    font-size: 52px;
    font-weight: 900;
    background: linear-gradient(135deg, rgba(201, 149, 60, 0.25), rgba(201, 149, 60, 0.08));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    line-height: 1;
    font-style: italic;
}

.adv-title {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-on-dark);
}

.adv-desc {
    font-size: 13px;
    color: var(--text-on-dark-muted);
    line-height: 1.75;
}

/* === 服务流程 === */
.process-section {
    background: var(--bg-section);
}

.process-timeline {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    position: relative;
    max-width: 920px;
    margin: 0 auto;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 26px;
    left: 60px;
    right: 60px;
    height: 1px;
    background: linear-gradient(90deg, var(--border-light), var(--accent), var(--border-light));
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
}

.step-marker {
    width: 52px;
    height: 52px;
    background: var(--bg-card);
    border: 2px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
    position: relative;
    z-index: 1;
    box-shadow: 0 0 0 6px rgba(201, 149, 60, 0.06);
    transition: all 0.4s ease;
}

.process-step:hover .step-marker {
    box-shadow: 0 0 0 8px rgba(201, 149, 60, 0.1), 0 4px 16px rgba(201, 149, 60, 0.15);
    transform: scale(1.05);
}

.step-num {
    font-size: 16px;
    font-weight: 700;
    color: var(--accent);
}

.step-content h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.step-content p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* === 关于我们 === */
.about {
    background: var(--bg-base);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 64px;
    align-items: start;
}

.about-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.95;
    margin-bottom: 18px;
}

.about-text strong {
    color: var(--text-primary);
}

.about-highlights {
    margin-top: 36px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.highlight-item {
    display: flex;
    gap: 18px;
    align-items: flex-start;
}

.highlight-icon {
    width: 46px;
    height: 46px;
    background: var(--bg-section);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.highlight-item h5 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.highlight-item p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* 联系卡片 */
.about-contact-card {
    background: var(--bg-hero);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    padding: 40px 36px;
    position: sticky;
    top: 100px;
}

.about-contact-card h4 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 28px;
    color: var(--text-on-dark);
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--text-on-dark-muted);
    font-size: 14px;
}

.contact-item svg {
    color: var(--accent);
    flex-shrink: 0;
}

.about-contact-card .btn-primary {
    font-size: 14px;
}

/* === 页脚 === */
.footer {
    background: #0a1525;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding: 56px 0 0;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 48px;
    padding-bottom: 44px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer .logo-icon {
    color: var(--accent);
}

.footer .logo-name {
    color: var(--text-on-dark);
}

.footer .logo-sub {
    color: var(--text-on-dark-muted);
}

.footer-brand {
    max-width: 280px;
}

.footer-desc {
    font-size: 13px;
    color: var(--text-on-dark-muted);
    margin-top: 14px;
    line-height: 1.7;
}

.footer-links {
    display: flex;
    gap: 56px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-col h5 {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-on-dark);
    letter-spacing: 0.5px;
}

.footer-col a {
    font-size: 13px;
    color: var(--text-on-dark-muted);
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--accent-light);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 0;
    font-size: 12px;
    color: rgba(148, 168, 192, 0.6);
}

.footer-beian {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-beian a {
    color: rgba(148, 168, 192, 0.6);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-beian a:hover {
    color: rgba(148, 168, 192, 1);
}

.beian-police {
    display: flex;
    align-items: center;
    gap: 5px;
}

.beian-police img {
    width: 14px;
    height: 14px;
    opacity: 0.7;
}

/* === 滚动进入动画 === */
[data-aos] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* === 分隔装饰线 === */
.section-divider {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    margin: 0 auto;
    opacity: 0.4;
}

/* === 响应式 === */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-contact-card {
        position: static;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.97);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        flex-direction: column;
        padding: 12px 20px;
        border-bottom: 1px solid var(--border-light);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
    }
    
    .nav-links a {
        color: var(--text-secondary) !important;
    }
    
    .nav-links a:hover,
    .nav-links a.active {
        color: var(--primary-mid) !important;
        background: rgba(26, 58, 92, 0.04) !important;
    }
    
    .nav-links.open {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 34px;
    }
    
    .hero-stats {
        gap: 24px;
        flex-wrap: wrap;
    }
    
    .stat-num {
        font-size: 30px;
    }
    
    .hide-mobile {
        display: none;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .section-header {
        margin-bottom: 48px;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .process-timeline {
        flex-direction: column;
        gap: 36px;
    }
    
    .process-timeline::before {
        display: none;
    }
    
    .footer-top {
        flex-direction: column;
        gap: 36px;
    }
    
    .footer-links {
        flex-wrap: wrap;
        gap: 36px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .stat-divider {
        width: 40px;
        height: 1px;
    }
    
    .service-card {
        padding: 28px 24px;
    }
    
    .tool-card {
        padding: 24px 20px;
    }
    
    .hero-content {
        padding: 120px 20px 80px;
    }
}

/* ============================================
   新增模块样式
   ============================================ */

/* === Hero 背景图 === */
.hero-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.15;
}

/* === Section 区域头图 === */
.section-hero-image {
    width: 100%;
    height: 240px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 56px;
    box-shadow: var(--shadow-md);
}

.section-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.section-hero-image:hover img {
    transform: scale(1.03);
}

/* === 核心业务卡片配图 === */
.service-card {
    display: flex;
    flex-direction: column;
}

.service-card-image {
    width: 100%;
    height: 180px;
    overflow: hidden;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.service-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.service-card-body {
    position: relative;
    z-index: 1;
}

/* === 战略合作伙伴 === */
.partner-section {
    background: var(--bg-section);
}

.partner-banner {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.partner-banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.partner-banner-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.12;
}

.partner-banner-content {
    position: relative;
    z-index: 1;
    padding: 64px 48px;
    background: linear-gradient(165deg, rgba(11, 29, 53, 0.92) 0%, rgba(26, 58, 92, 0.88) 100%);
}

.partner-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin-bottom: 52px;
}

.partner-logo-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.partner-logo-circle {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
    border: 2px solid rgba(201, 149, 60, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all 0.4s ease;
}

.partner-logo-circle:hover {
    border-color: var(--accent);
    box-shadow: 0 0 32px rgba(201, 149, 60, 0.2);
    transform: scale(1.05);
}

.partner-logo-keli {
    border-color: rgba(255, 255, 255, 0.15);
    background: linear-gradient(135deg, rgba(201, 149, 60, 0.1), rgba(201, 149, 60, 0.03));
}

.partner-logo-text {
    font-size: 17px;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 1px;
}

.partner-logo-keli .partner-logo-text {
    color: var(--accent-light);
}

.partner-logo-label {
    font-size: 12px;
    color: var(--text-on-dark-muted);
    letter-spacing: 0.5px;
}

.partner-link-icon {
    flex-shrink: 0;
}

.partner-desc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.partner-desc-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: all 0.4s ease;
}

.partner-desc-card:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(201, 149, 60, 0.2);
    transform: translateY(-4px);
}

.partner-desc-icon {
    margin-bottom: 20px;
}

.partner-desc-card h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-on-dark);
    margin-bottom: 12px;
}

.partner-desc-card p {
    font-size: 13.5px;
    color: var(--text-on-dark-muted);
    line-height: 1.8;
}

/* === 科理AI服务案例 === */
.cases-section {
    background: var(--bg-base);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 56px;
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s ease;
}

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

.case-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.case-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.case-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px 20px;
    background: linear-gradient(transparent, rgba(11, 29, 53, 0.7));
}

.case-industry {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(201, 149, 60, 0.85);
    color: #ffffff;
    font-size: 11px;
    font-weight: 600;
    border-radius: 50px;
    letter-spacing: 1px;
}

.case-card-body {
    padding: 28px 24px;
}

.case-client {
    margin-bottom: 14px;
}

.case-client-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(201, 149, 60, 0.06);
    border: 1px solid var(--border-gold);
    border-radius: 8px;
}

.case-client-logo svg {
    flex-shrink: 0;
}

.case-client-logo span {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
}

.case-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.case-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 18px;
}

.case-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.case-tags span {
    padding: 4px 12px;
    background: rgba(26, 58, 92, 0.04);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 0.3px;
}

.cases-cta {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}

.cases-cta-text {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 28px;
    letter-spacing: 0.3px;
}

/* === 行业优势背景图 === */
.section-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.section-bg-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.06;
}

.advantages .container {
    position: relative;
    z-index: 1;
}

/* === 关于我们配图 === */
.about-image-wrap {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    height: 100%;
    min-height: 420px;
}

.about-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.about-image-wrap:hover img {
    transform: scale(1.03);
}

.about-image-badge {
    position: absolute;
    bottom: 24px;
    left: 24px;
    background: rgba(11, 29, 53, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(201, 149, 60, 0.3);
    border-radius: var(--radius-lg);
    padding: 20px 28px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.about-image-badge-num {
    font-size: 36px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-light), #f0d078);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.about-image-badge-text {
    font-size: 13px;
    color: var(--text-on-dark-muted);
    letter-spacing: 0.5px;
}

/* === 新增模块响应式 === */
@media (max-width: 1024px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .about-image-wrap {
        min-height: 320px;
    }
}

@media (max-width: 768px) {
    .section-hero-image {
        height: 180px;
        margin-bottom: 40px;
    }

    .partner-banner-content {
        padding: 40px 24px;
    }

    .partner-logos {
        gap: 24px;
        flex-direction: column;
    }

    .partner-logo-circle {
        width: 90px;
        height: 90px;
    }

    .partner-logo-text {
        font-size: 15px;
    }

    .partner-link-icon {
        transform: rotate(90deg);
    }

    .partner-desc-grid {
        grid-template-columns: 1fr;
    }

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

    .about-image-wrap {
        min-height: 260px;
    }

    .service-card-image {
        height: 150px;
    }

    .case-card-image {
        height: 180px;
    }
}