/* ================================
   智慧后勤服务管理平台 - 样式表
   ================================ */

/* ====== 变量定义 ====== */
:root {
    --color-primary: #1E56A0;
    --color-primary-dark: #16407A;
    --color-primary-light: #2E7DD4;
    --color-accent: #FF7A3D;
    --color-accent-light: #FF9A66;
    --color-success: #10B981;
    --color-danger: #EF4444;
    --color-warning: #F59E0B;
    --color-purple: #8B5CF6;
    --color-bg: #FFFFFF;
    --color-bg-soft: #F6F9FD;
    --color-bg-dark: #0F2744;
    --color-bg-darker: #0A1D36;
    --color-text: #1F2937;
    --color-text-light: #4B5563;
    --color-text-muted: #9CA3AF;
    --color-text-inverse: #FFFFFF;
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(30, 86, 160, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 25px -5px rgba(30, 86, 160, 0.12), 0 8px 10px -6px rgba(30, 86, 160, 0.08);
    --shadow-xl: 0 20px 40px -12px rgba(30, 86, 160, 0.18);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --container: 1200px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ====== 通用按钮 ====== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 15px;
    line-height: 1;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(30, 86, 160, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px 0 rgba(30, 86, 160, 0.45);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1.5px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: white;
    transform: translateY(-2px);
}

.btn-arrow {
    width: 20px;
    height: 20px;
    transition: var(--transition);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

/* ====== 顶部导航栏 ====== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.header.scrolled {
    padding: 12px 0;
    border-bottom-color: var(--color-border-light);
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo-icon {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
}

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

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary-dark);
    letter-spacing: 0.5px;
}

.logo-sub {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 1px;
}

.nav-menu {
    flex: 1;
    display: flex;
    justify-content: center;
}

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

.nav-link {
    display: inline-block;
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-light);
    position: relative;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--color-primary);
    background: rgba(30, 86, 160, 0.06);
}

.nav-link.active {
    color: var(--color-primary);
    background: rgba(30, 86, 160, 0.1);
    font-weight: 600;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    padding: 0 10px;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
    transform-origin: center;
}

.mobile-menu-btn.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn.open span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ====== Hero 区域 ====== */
.hero {
    position: relative;
    min-height: 100vh;
    padding: 140px 0 100px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--color-bg-dark);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 60% 50% at 85% 30%, rgba(46, 125, 212, 0.35) 0%, transparent 70%),
        radial-gradient(ellipse 50% 60% at 10% 80%, rgba(139, 92, 246, 0.2) 0%, transparent 65%),
        linear-gradient(180deg, #0A1D36 0%, #0F2744 45%, #163A5F 100%);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 85%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 85%);
}

.hero > .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px 8px 12px;
    border-radius: var(--radius-full);
    background: rgba(46, 125, 212, 0.15);
    border: 1px solid rgba(46, 125, 212, 0.35);
    color: #7EB5F0;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 28px;
    backdrop-filter: blur(4px);
}

.badge-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-accent);
    color: white;
    font-size: 12px;
}

.hero-title {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 900;
    line-height: 1.15;
    color: white;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.title-gradient {
    background: linear-gradient(135deg, #5EB3FF 0%, #7DD3FC 50%, #FF9A66 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 56px;
}

.hero-actions .btn svg {
    width: 20px;
    height: 20px;
}

.hero-stats {
    display: flex;
    align-items: flex-start;
    gap: 32px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-number {
    font-size: 32px;
    font-weight: 800;
    color: white;
    line-height: 1;
    letter-spacing: -1px;
}

.stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.12);
    margin-top: 4px;
}

/* Hero 视觉卡片 */
.hero-visual {
    position: relative;
    width: 100%;
    height: 540px;
}

.visual-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    animation: float 6s ease-in-out infinite;
}

.visual-card-1 {
    top: 0;
    right: 0;
    width: 320px;
    padding: 18px;
    animation-delay: 0s;
}

.visual-card-2 {
    bottom: 80px;
    left: 0;
    width: 280px;
    padding: 16px;
    animation-delay: -2s;
}

.visual-card-3 {
    bottom: 0;
    right: 40px;
    width: 240px;
    padding: 14px 16px;
    animation-delay: -4s;
    display: flex;
    align-items: center;
    gap: 12px;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.vc-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: 14px;
}

.vc-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.dot-red { background: #FF5F57; }
.dot-yellow { background: #FEBC2E; }
.dot-green { background: #28C840; }

.vc-title {
    margin-left: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-light);
}

.vc-body { }

.vc-stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.vc-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.vc-label {
    font-size: 12px;
    color: var(--color-text-muted);
}

.vc-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
}

.vc-badge {
    padding: 4px 8px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
}

.vc-badge-green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.vc-bars {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 80px;
}

.vc-bar {
    flex: 1;
    background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    border-radius: 4px 4px 0 0;
    transition: height 0.5s;
}

.vc-icon-wrap {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.vc-icon-wrap svg {
    width: 22px;
    height: 22px;
}

.vc-icon-blue {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.vc-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.vc-card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
}

.vc-card-sub {
    font-size: 12px;
    color: var(--color-text-muted);
}

.vc-card-sub b {
    color: var(--color-primary);
    font-weight: 700;
}

.vc-progress {
    margin-top: 12px;
    height: 6px;
    background: var(--color-border-light);
    border-radius: 3px;
    overflow: hidden;
}

.vc-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-success), #34D399);
    border-radius: 3px;
}

.vc-notif-icon {
    position: relative;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.vc-notif-icon svg {
    width: 20px;
    height: 20px;
}

.vc-notif-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 9px;
    background: var(--color-danger);
    color: white;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid white;
}

.vc-notif-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.vc-notif-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
}

.vc-notif-sub {
    font-size: 12px;
    color: var(--color-text-muted);
}

/* ====== 动画 ====== */
.animate-fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards;
}

.animate-fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    animation: fadeInRight 0.8s forwards;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }
.delay-4 { animation-delay: 0.6s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ====== 信任背书条 ====== */
.trust-bar {
    background: var(--color-bg-soft);
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border-light);
}

.trust-items {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.trust-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--color-text-light);
    font-weight: 500;
    font-size: 15px;
}

.trust-item svg {
    width: 22px;
    height: 22px;
    color: var(--color-primary);
    flex-shrink: 0;
}

/* ====== Section 通用 ====== */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    background: rgba(30, 86, 160, 0.1);
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.section-tag-light {
    background: rgba(255, 255, 255, 0.1);
    color: #7EB5F0;
}

.section-title {
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 800;
    color: var(--color-text);
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}

.section-desc {
    font-size: 16px;
    line-height: 1.75;
    color: var(--color-text-light);
}

.section-desc-light {
    color: rgba(255, 255, 255, 0.7);
}

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

.text-accent {
    color: var(--color-accent);
}

/* 滚动时触发动画 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ====== 产品概述 ====== */
.overview-section {
    background: var(--color-bg);
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.overview-card {
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.overview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-slow);
}

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

.overview-card:hover::before {
    transform: scaleX(1);
}

.ov-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.ov-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.ov-icon-1 { background: linear-gradient(135deg, #1E56A0, #2E7DD4); }
.ov-icon-2 { background: linear-gradient(135deg, #10B981, #34D399); }
.ov-icon-3 { background: linear-gradient(135deg, #8B5CF6, #A78BFA); }
.ov-icon-4 { background: linear-gradient(135deg, #FF7A3D, #FF9A66); }

.overview-card h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
}

.overview-card p {
    font-size: 14.5px;
    line-height: 1.75;
    color: var(--color-text-light);
}

/* ====== 痛点解决方案 ====== */
.pain-section {
    background: linear-gradient(180deg, #0F2744 0%, #163A5F 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.pain-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 40% 30% at 15% 10%, rgba(46, 125, 212, 0.2) 0%, transparent 60%),
        radial-gradient(ellipse 35% 25% at 85% 90%, rgba(139, 92, 246, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.pain-section > .container {
    position: relative;
}

.pain-section .section-title {
    color: white;
}

.pain-compare {
    display: grid;
    grid-template-columns: 1fr 60px 1fr;
    gap: 0;
    align-items: start;
}

.pain-col {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: 36px 32px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.pain-col-bad {
    border-top: 3px solid #EF4444;
}

.pain-col-good {
    border-top: 3px solid #10B981;
}

.pain-col-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-bottom: 24px;
    margin-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pain-col-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pain-col-icon svg {
    width: 22px;
    height: 22px;
}

.pain-icon-bad {
    background: rgba(239, 68, 68, 0.15);
    color: #F87171;
}

.pain-icon-good {
    background: rgba(16, 185, 129, 0.15);
    color: #34D399;
}

.pain-col-header h3 {
    font-size: 20px;
    font-weight: 700;
}

.pain-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.pain-list li {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.pain-num {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: rgba(239, 68, 68, 0.15);
    color: #F87171;
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.pain-num-good {
    background: rgba(16, 185, 129, 0.15);
    color: #34D399;
}

.pain-list h4 {
    font-size: 15px;
    font-weight: 600;
    color: white;
    margin-bottom: 4px;
}

.pain-list p {
    font-size: 13.5px;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.6);
}

.pain-vs {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding-top: 60px;
}

.vs-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    font-size: 18px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(30, 86, 160, 0.4);
}

/* ====== 核心功能 ====== */
.features-section {
    background: var(--color-bg-soft);
}

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

.feature-card {
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    padding: 32px 28px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border-light);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(30, 86, 160, 0.15);
}

.feature-card-wide {
    grid-column: span 3;
    flex-direction: row;
    gap: 32px;
    align-items: flex-start;
    background: linear-gradient(135deg, #FFFFFF 0%, #F6F9FD 100%);
}

.fc-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.fc-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.fc-icon-1 { background: linear-gradient(135deg, #1E56A0, #2E7DD4); }
.fc-icon-2 { background: linear-gradient(135deg, #10B981, #059669); }
.fc-icon-3 { background: linear-gradient(135deg, #F59E0B, #FBBF24); }
.fc-icon-4 { background: linear-gradient(135deg, #8B5CF6, #7C3AED); }
.fc-icon-5 { background: linear-gradient(135deg, #FF7A3D, #EA580C); }
.fc-icon-6 { background: linear-gradient(135deg, #0891B2, #06B6D4); }
.fc-icon-7 { background: linear-gradient(135deg, #DB2777, #EC4899); }

.feature-card-wide .fc-icon {
    width: 80px;
    height: 80px;
    border-radius: 22px;
}

.feature-card-wide .fc-icon svg {
    width: 40px;
    height: 40px;
}

.fc-content { flex: 1; }

.fc-tag {
    display: inline-block;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: rgba(30, 86, 160, 0.08);
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.fc-content h3 {
    font-size: 21px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
}

.fc-content > p {
    font-size: 14.5px;
    line-height: 1.75;
    color: var(--color-text-light);
    margin-bottom: 18px;
}

.fc-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.fc-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-text-light);
    font-weight: 500;
}

.fc-features li svg {
    width: 18px;
    height: 18px;
    color: var(--color-success);
    flex-shrink: 0;
}

.fc-subgrid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 8px;
}

.fc-subitem {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 14px;
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
}

.fc-subicon {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: linear-gradient(135deg, rgba(219, 39, 119, 0.1), rgba(236, 72, 153, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.fc-subicon svg {
    width: 16px;
    height: 16px;
    color: #DB2777;
}

.fc-subitem h5 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 3px;
}

.fc-subitem p {
    font-size: 12.5px;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* ====== 行业应用 ====== */
.industry-section {
    background: linear-gradient(180deg, #163A5F 0%, #0F2744 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.industry-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 45% 35% at 50% 0%, rgba(255, 122, 61, 0.12) 0%, transparent 60%);
    pointer-events: none;
}

.industry-section > .container {
    position: relative;
}

.industry-section .section-title {
    color: white;
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.industry-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    min-height: 400px;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.industry-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.2);
}

.industry-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-size: cover;
    background-position: center;
    transition: var(--transition-slow);
}

.industry-bg-gov {
    background: linear-gradient(135deg, rgba(30, 86, 160, 0.95), rgba(22, 64, 122, 0.95)),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5L5 20V35L30 50L55 35V20L30 5z' fill='white' fill-opacity='0.03'/%3E%3C/svg%3E");
}

.industry-bg-ent {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.9), rgba(5, 150, 105, 0.95)),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Crect x='15' y='15' width='30' height='30' fill='white' fill-opacity='0.04'/%3E%3C/svg%3E");
}

.industry-bg-hos {
    background: linear-gradient(135deg, rgba(219, 39, 119, 0.9), rgba(190, 24, 93, 0.95)),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='30' cy='30' r='20' fill='white' fill-opacity='0.04'/%3E%3C/svg%3E");
}

.industry-bg-sch {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.9), rgba(124, 58, 237, 0.95)),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 10L10 25H50L30 10zM15 28V50H45V28' stroke='white' stroke-opacity='0.06' fill='none'/%3E%3C/svg%3E");
}

.industry-card:hover .industry-bg {
    transform: scale(1.08);
}

.industry-content {
    position: relative;
    z-index: 1;
    padding: 32px 28px;
    height: 100%;
    min-height: 400px;
    display: flex;
    flex-direction: column;
}

.industry-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.industry-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.industry-content h3 {
    font-size: 22px;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
}

.industry-content > p {
    font-size: 14px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.8);
    flex: 1;
    margin-bottom: 24px;
}

.industry-points {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.industry-points span {
    padding: 6px 12px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(8px);
    font-size: 12.5px;
    color: white;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

/* ====== 平台价值 ====== */
.value-section {
    background: var(--color-bg);
    padding: 80px 0;
}

.value-wrap {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: center;
    background: linear-gradient(135deg, #F6F9FD 0%, #FFFFFF 100%);
    border-radius: var(--radius-xl);
    padding: 56px;
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-lg);
}

.value-left h2 {
    font-size: clamp(26px, 3vw, 36px);
    font-weight: 800;
    color: var(--color-text);
    line-height: 1.25;
    margin: 16px 0;
    letter-spacing: -0.3px;
}

.value-left > p {
    font-size: 15.5px;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: 32px;
}

.value-right {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.value-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.value-card-top {
    margin-top: 24px;
}

.value-percent {
    font-size: 42px;
    font-weight: 900;
    line-height: 1;
    color: var(--color-primary);
    margin-bottom: 12px;
    letter-spacing: -1px;
}

.value-percent-orange { color: var(--color-accent); }
.value-percent-purple { color: var(--color-purple); }
.value-percent-green { color: var(--color-success); }

.value-card h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 6px;
}

.value-card p {
    font-size: 13.5px;
    line-height: 1.6;
    color: var(--color-text-muted);
}

/* ====== 联系我们 ====== */
.contact-section {
    background: var(--color-bg-soft);
}

.contact-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-left h2 {
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 800;
    color: var(--color-text);
    line-height: 1.25;
    margin: 16px 0;
    letter-spacing: -0.3px;
}

.contact-left > p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: 40px;
    max-width: 480px;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 18px 20px;
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
    transition: var(--transition);
}

.contact-info-item:hover {
    border-color: rgba(30, 86, 160, 0.3);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.ci-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(30, 86, 160, 0.1), rgba(46, 125, 212, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ci-icon svg {
    width: 22px;
    height: 22px;
    color: var(--color-primary);
}

.ci-icon-2 {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(52, 211, 153, 0.1));
}

.ci-icon-2 svg { color: var(--color-success); }

.ci-icon-3 {
    background: linear-gradient(135deg, rgba(255, 122, 61, 0.1), rgba(255, 154, 102, 0.1));
}

.ci-icon-3 svg { color: var(--color-accent); }

.ci-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    justify-content: center;
    padding: 3px 0;
}

.ci-label {
    font-size: 12.5px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.ci-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
}

.ci-value-highlight {
    color: var(--color-primary);
    font-size: 18px;
}

.contact-right { }

.contact-form-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-border-light);
}

.form-header {
    text-align: center;
    margin-bottom: 32px;
}

.form-header h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 6px;
}

.form-header p {
    font-size: 14px;
    color: var(--color-text-muted);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--color-text-light);
}

.required {
    color: var(--color-danger);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    background: var(--color-bg-soft);
    border: 1.5px solid var(--color-border);
    color: var(--color-text);
    font-size: 14.5px;
    transition: var(--transition);
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    background: white;
    box-shadow: 0 0 0 4px rgba(30, 86, 160, 0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: var(--transition);
    font-size: 13px;
    color: var(--color-text-light);
    user-select: none;
}

.checkbox-item:hover {
    border-color: var(--color-primary-light);
    background: rgba(30, 86, 160, 0.04);
}

.checkbox-item input {
    width: auto;
    accent-color: var(--color-primary);
}

.checkbox-item input:checked ~ span {
    color: var(--color-primary);
    font-weight: 600;
}

/* ====== 页脚 ====== */
.footer {
    background: #071324;
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 0 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.3fr 2fr;
    gap: 64px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-title {
    color: white;
}

.footer-brand .logo-sub {
    color: rgba(255, 255, 255, 0.5);
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.55);
    max-width: 380px;
}

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

.footer-col h5 {
    font-size: 15px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    font-size: 13.5px;
    color: rgba(255, 255, 255, 0.55);
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--color-primary-light);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13.5px;
}

.footer-contact svg {
    width: 16px;
    height: 16px;
    color: var(--color-primary-light);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-bottom {
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* ====== 返回顶部 ====== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(30, 86, 160, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(30, 86, 160, 0.5);
}

.back-to-top svg {
    width: 22px;
    height: 22px;
}

/* ====== 响应式设计 ====== */
@media (max-width: 1100px) {
    .hero > .container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .hero-visual {
        max-width: 520px;
        margin: 0 auto;
        height: 460px;
    }
    .overview-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .feature-card-wide {
        grid-column: span 2;
    }
    .industry-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .pain-compare {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .pain-vs {
        padding: 0;
        height: auto;
    }
    .value-wrap {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .contact-wrap {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 860px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        padding: 16px 24px 24px;
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--color-border-light);
        transform: translateY(-120%);
        transition: var(--transition);
    }
    .nav-menu.open {
        transform: translateY(0);
    }
    .nav-menu ul {
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
    }
    .nav-link {
        padding: 14px 18px;
    }
    .mobile-menu-btn {
        display: flex;
    }
    .nav-actions .btn {
        display: none;
    }
    .hero {
        padding: 120px 0 80px;
        min-height: auto;
    }
    .hero-title {
        font-size: 36px;
    }
    .hero-stats {
        gap: 20px;
    }
    .stat-divider {
        display: none;
    }
    .hero-visual {
        height: 420px;
    }
    .visual-card-1 { width: 270px; }
    .visual-card-2 { width: 240px; }
    .visual-card-3 { width: 210px; }
    .trust-items {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .section {
        padding: 72px 0;
    }
    .section-header {
        margin-bottom: 48px;
    }
    .overview-grid {
        grid-template-columns: 1fr;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .feature-card-wide {
        grid-column: span 1;
        flex-direction: column;
    }
    .fc-subgrid {
        grid-template-columns: repeat(2, 1fr);
    }
    .industry-grid {
        grid-template-columns: 1fr;
    }
    .value-wrap {
        padding: 32px 24px;
    }
    .value-right {
        grid-template-columns: 1fr;
    }
    .value-card-top {
        margin-top: 0;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .checkbox-group {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-form-card {
        padding: 28px 24px;
    }
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
    }
    .back-to-top {
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 520px) {
    .hero-title {
        font-size: 30px;
    }
    .hero-subtitle {
        font-size: 15px;
    }
    .hero-stats {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-visual {
        height: 380px;
    }
    .visual-card {
        position: relative !important;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
        margin-bottom: 16px;
        width: 100% !important;
    }
    .hero-actions {
        flex-direction: column;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .trust-items {
        grid-template-columns: 1fr;
    }
    .section-title {
        font-size: 26px;
    }
    .pain-col {
        padding: 24px 20px;
    }
    .feature-card-wide .fc-icon {
        width: 64px;
        height: 64px;
    }
    .feature-card-wide .fc-icon svg {
        width: 32px;
        height: 32px;
    }
    .fc-subgrid {
        grid-template-columns: 1fr;
    }
    .industry-card {
        min-height: auto;
    }
    .industry-content {
        min-height: auto;
    }
    .footer-links {
        grid-template-columns: 1fr;
    }
    .checkbox-group {
        grid-template-columns: 1fr 1fr;
    }
    .value-percent {
        font-size: 34px;
    }
}

/* ================================
   多页面站点扩展样式（SEO/GEO）
   ================================ */

html {
    scroll-padding-top: 96px;
}

/* ====== 面包屑导航 ====== */
.breadcrumb {
    padding: 18px 0 6px;
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    list-style: none;
    font-size: 13.5px;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 6px;
}

.breadcrumb li + li::before {
    content: '/';
    color: var(--color-text-muted);
    opacity: 0.6;
}

.breadcrumb a {
    color: var(--color-text-muted);
}

.breadcrumb a:hover {
    color: var(--color-primary);
}

.breadcrumb [aria-current="page"] {
    color: var(--color-primary);
    font-weight: 600;
}

/* ====== 子页面横幅 ====== */
.page-hero {
    position: relative;
    padding: 150px 0 72px;
    background:
        radial-gradient(ellipse 55% 60% at 80% 20%, rgba(46, 125, 212, 0.35) 0%, transparent 65%),
        radial-gradient(ellipse 40% 50% at 12% 85%, rgba(139, 92, 246, 0.18) 0%, transparent 60%),
        linear-gradient(180deg, #0A1D36 0%, #163A5F 100%);
    overflow: hidden;
    color: #fff;
}

.page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 85%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 85%);
}

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

.page-hero h1 {
    font-size: clamp(30px, 4vw, 44px);
    font-weight: 800;
    margin: 14px 0;
    letter-spacing: -0.3px;
    line-height: 1.2;
}

.page-hero-desc {
    max-width: 720px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 16.5px;
    line-height: 1.8;
}

/* ====== 内容摘要框（GEO 优化：便于 AI 引擎提取引用） ====== */
.summary-box {
    background: #EFF5FC;
    border: 1px solid rgba(30, 86, 160, 0.12);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: 26px 30px;
    margin: 40px 0 56px;
}

.summary-box h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 14px;
}

.summary-box h2 svg {
    width: 20px;
    height: 20px;
}

.summary-box ul {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 28px;
}

.summary-box li {
    position: relative;
    padding-left: 26px;
    font-size: 14.5px;
    line-height: 1.7;
    color: var(--color-text-light);
}

.summary-box li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M4 10l4.5 4.5L16 6' fill='none' stroke='%231E56A0' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

/* ====== FAQ 常见问题 ====== */
.faq-list {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.open {
    border-color: rgba(30, 86, 160, 0.3);
    box-shadow: var(--shadow-md);
}

.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    transition: var(--transition);
}

.faq-q:hover {
    color: var(--color-primary);
}

.faq-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(30, 86, 160, 0.08);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.faq-icon svg {
    width: 14px;
    height: 14px;
}

.faq-item.open .faq-icon {
    transform: rotate(180deg);
    background: var(--color-primary);
    color: #fff;
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-a-inner {
    padding: 0 24px 22px;
    font-size: 14.5px;
    line-height: 1.85;
    color: var(--color-text-light);
}

.faq-item.open .faq-a {
    max-height: 460px;
}

/* ====== 解决方案详情块 ====== */
.solution-block {
    background: #fff;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    padding: 36px;
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
    scroll-margin-top: 100px;
}

.solution-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
}

.solution-num {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, #EF4444, #F87171);
    color: #fff;
    font-weight: 800;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.solution-block h2 {
    font-size: 22px;
    font-weight: 700;
}

.solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.solution-col {
    border-radius: var(--radius-lg);
    padding: 22px;
}

.solution-col-bad {
    background: #FEF2F2;
    border: 1px solid #FECACA;
}

.solution-col-good {
    background: #ECFDF5;
    border: 1px solid #A7F3D0;
}

.solution-col h3 {
    font-size: 15px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.solution-col-bad h3 { color: #B91C1C; }
.solution-col-good h3 { color: #047857; }

.solution-col ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.solution-col li {
    position: relative;
    padding-left: 20px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-light);
}

.solution-col-bad li::before {
    content: '\2715';
    position: absolute;
    left: 0;
    color: #EF4444;
    font-weight: 700;
}

.solution-col-good li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: #10B981;
    font-weight: 700;
}

.solution-effect {
    margin-top: 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.solution-effect span {
    padding: 6px 14px;
    border-radius: var(--radius-full);
    background: rgba(30, 86, 160, 0.08);
    color: var(--color-primary-dark);
    font-size: 13px;
    font-weight: 600;
}

/* ====== 功能详情模块页 ====== */
.module-article {
    background: #fff;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    padding: 40px;
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
    scroll-margin-top: 100px;
    transition: var(--transition);
}

.module-article:hover {
    box-shadow: var(--shadow-lg);
}

.module-head {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 20px;
}

.module-head h2 {
    font-size: 24px;
    font-weight: 800;
    margin: 4px 0 6px;
}

.module-tag {
    font-size: 12.5px;
    color: var(--color-primary);
    font-weight: 700;
    letter-spacing: 1px;
}

.module-desc {
    font-size: 15px;
    line-height: 1.85;
    color: var(--color-text-light);
    margin-bottom: 22px;
}

.module-cols {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
}

.module-panel {
    background: var(--color-bg-soft);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
}

.module-panel h3 {
    font-size: 15.5px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.module-panel h3::before {
    content: '';
    width: 4px;
    height: 16px;
    border-radius: 2px;
    background: var(--color-primary);
}

.module-panel ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.module-panel li {
    position: relative;
    padding-left: 18px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-light);
}

.module-panel li::before {
    content: '';
    position: absolute;
    left: 2px;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-primary-light);
}

/* ====== 行业详情块 ====== */
.industry-block {
    display: grid;
    grid-template-columns: 260px 1fr;
    background: #fff;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
    scroll-margin-top: 100px;
}

.industry-side {
    padding: 36px 30px;
    color: #fff;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.industry-side .industry-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
}

.industry-side .industry-icon svg {
    width: 26px;
    height: 26px;
}

.industry-side h2 {
    font-size: 22px;
    font-weight: 700;
}

.industry-side-desc {
    font-size: 13.5px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
}

.side-gov { background: linear-gradient(150deg, #1E56A0, #16407A); }
.side-ent { background: linear-gradient(150deg, #0E9F6E, #046C4E); }
.side-hos { background: linear-gradient(150deg, #DB2777, #9D174D); }
.side-sch { background: linear-gradient(150deg, #7C3AED, #5B21B6); }

.industry-main {
    padding: 36px;
}

.industry-main h3 {
    font-size: 15.5px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text);
}

.industry-main ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 22px;
}

.industry-main li {
    position: relative;
    padding-left: 20px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-light);
}

.industry-main li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}

.industry-main ul:last-child {
    margin-bottom: 0;
}

/* ====== CTA 横幅 ====== */
.cta-band {
    margin-top: 56px;
    background: linear-gradient(120deg, #1E56A0 0%, #2E7DD4 55%, #3E8EE6 100%);
    border-radius: var(--radius-xl);
    padding: 44px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cta-band::before {
    content: '';
    position: absolute;
    right: -80px;
    top: -80px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
}

.cta-band h2 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 8px;
    position: relative;
}

.cta-band p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    position: relative;
}

.cta-band .btn {
    background: #fff;
    color: var(--color-primary-dark);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    flex-shrink: 0;
    position: relative;
}

.cta-band .btn:hover {
    transform: translateY(-2px);
}

/* ====== 相关页面推荐 ====== */
.related-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 48px;
}

.related-card {
    background: #fff;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
    display: block;
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(30, 86, 160, 0.25);
}

.related-card .rc-tag {
    font-size: 12px;
    color: var(--color-primary);
    font-weight: 700;
    letter-spacing: 1px;
}

.related-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin: 6px 0;
    color: var(--color-text);
}

.related-card p {
    font-size: 13.5px;
    color: var(--color-text-muted);
    line-height: 1.65;
}

.related-card .rc-arrow {
    margin-top: 12px;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 13.5px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* ====== 联系页扩展 ====== */
.contact-grid-page {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 48px;
    align-items: start;
}

.step-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.step-card {
    background: #fff;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 22px;
}

.step-num {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.step-card h3 {
    font-size: 15.5px;
    font-weight: 700;
    margin-bottom: 6px;
}

.step-card p {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.65;
}

/* ====== 扩展样式响应式 ====== */
@media (max-width: 1100px) {
    .summary-box ul { grid-template-columns: 1fr; }
    .module-cols { grid-template-columns: 1fr; }
    .industry-block { grid-template-columns: 1fr; }
    .related-links { grid-template-columns: 1fr 1fr; }
    .contact-grid-page { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
    .page-hero { padding: 130px 0 56px; }
    .solution-grid { grid-template-columns: 1fr; }
    .solution-block { padding: 26px 22px; }
    .module-article { padding: 26px 22px; }
    .module-head { flex-direction: column; }
    .cta-band { flex-direction: column; text-align: center; padding: 36px 24px; }
    .step-list { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
    .related-links { grid-template-columns: 1fr; }
    .industry-main { padding: 24px 20px; }
    .industry-side { padding: 26px 22px; }
}