/* =====================================================
   众甫数智 zfict — 全新设计系统 v2
   ===================================================== */

/* 基础重置 */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: var(--font-main); }
html { scroll-behavior: smooth; overscroll-behavior: none; }
body {
    color: var(--text-dark);
    line-height: 1.8;
    background-color: #fff;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overscroll-behavior: none;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.3;
}
p { line-height: 1.8; letter-spacing: 0.01em; }
strong { font-weight: 700; }

/* 颜色变量 */
:root {
    --primary-navy: #0a1e4a;
    --primary-blue: #1a4ed8;
    --accent-cyan: #06b6d4;
    --accent-gold: #f59e0b;
    --accent-blue: #3b82f6;
    --accent-gradient: linear-gradient(135deg, #1a4ed8 0%, #06b6d4 100%);
    --hero-gradient: linear-gradient(135deg, #0a1e4a 0%, #1a4ed8 60%, #06b6d4 100%);
    --gold-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --text-dark: #334155;  /* slate-700, ~10:1 在白底，明显柔和 */
    --text-gray: #475569;
    --text-light: #64748b;
    --bg-light: #f8fafc;
    --bg-warm: #fffbeb;
    --border-color: #e2e8f0;
    --font-main: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', -apple-system, sans-serif;
    --font-display: 'Noto Sans SC', 'PingFang SC', -apple-system, sans-serif;
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    --shadow-hover: 0 12px 36px rgba(15, 23, 42, 0.12);
    --shadow-lg: 0 25px 50px rgba(15, 23, 42, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --header-h: 73px;  /* 导航栏实际渲染高度（padding 16 + logo 40 + padding 16 = 72-73px），hero 高度 = 100vh - 该值 */
}

/* 容器 */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* 通用按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}
.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 14px rgba(26, 78, 216, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(26, 78, 216, 0.4);
}
.btn-ghost {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(8px);
}
.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.7);
}
.btn-secondary {
    background: #fff;
    color: var(--primary-navy);
    border: 1.5px solid var(--border-color);
}
.btn-secondary:hover {
    border-color: var(--primary-navy);
    color: var(--primary-blue);
}

/* Header 导航 */
header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(10, 30, 74, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition);
}
header.scrolled {
    padding: 12px 0;
    background: rgba(10, 30, 74, 0.95);
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}
.logo-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.logo-icon svg { width: 28px; height: 28px; }
.logo-text {
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 0.02em;
}
.nav-menu {
    display: flex;
    gap: 36px;
    align-items: center;
}
.nav-menu a {
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    font-weight: 500;
    position: relative;
    padding: 6px 0;
    transition: color 0.2s;
}
.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--accent-cyan);
    transition: width 0.2s;
}
.nav-menu a:hover { color: #fff; }
.nav-menu a:hover::after { width: 100%; }
.nav-menu a.active {
    color: #fff;
    font-weight: 700;
}
.nav-menu a.active::after {
    width: 100%;
    background: var(--accent-cyan);
}
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    gap: 4px;
}
.hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: var(--transition);
}
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px; left: 0; right: 0;
        flex-direction: column;
        background: var(--primary-navy);
        padding: 24px;
        gap: 20px;
        transform: translateY(-150%);
        transition: transform 0.3s;
    }
    .nav-menu.active { transform: translateY(0); }
    .hamburger { display: flex; }
}

/* ========== 新版 Hero ========== */
.hero-new {
    position: relative;
    min-height: calc(100vh - var(--header-h));
    min-height: calc(100svh - var(--header-h));
    display: flex;
    align-items: center;
    padding: 48px 0 96px;
    color: #fff;
    overflow: hidden;
}

/* 首页 hero 顶下来到 header 下面（子页不动，仍走 header 覆盖 hero 顶部） */
body.is-home .hero-new {
    margin-top: var(--header-h);
}

/* 子页面 hero 占屏 3/4 (严格) */
body:not(.is-home) .hero-new {
    height: 75vh;
    min-height: 480px;
    padding-top: 120px;
    padding-bottom: 24px;
    align-items: center;
    justify-content: center;
}
body:not(.is-home) .hero-tag {
    display: inline-block;
    padding: 0;
    background: none;
    border: none;
    backdrop-filter: none;
    border-radius: 0;
    font-size: 64px;
    font-weight: 800;
    color: #fff;
    margin: 0 0 16px;
    letter-spacing: -0.02em;
    line-height: 1.1;
}
body:not(.is-home) .hero-tag::before,
body:not(.is-home) .hero-tag::after {
    content: '';
    display: none;
}
body:not(.is-home) .hero-title {
    font-size: 56px;
    margin-bottom: 0;
    line-height: 1.15;
    letter-spacing: -0.01em;
}
body:not(.is-home) .hero-subtitle {
    font-size: 15px;
    margin-bottom: 18px;
    max-width: 640px;
    line-height: 1.6;
    -webkit-line-clamp: 2;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
body:not(.is-home) .hero-text {
    text-align: center;
    margin: 0 auto;
}
body:not(.is-home) .hero-text .hero-tag {
    display: inline-block;
}
body:not(.is-home) .hero-cta {
    margin-bottom: 0;
}
body:not(.is-home) .hero-cta .btn {
    padding: 10px 22px;
    font-size: 14px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 30, 74, 0.85) 0%, rgba(26, 78, 216, 0.6) 60%, rgba(6, 182, 212, 0.4) 100%);
    z-index: 1;
}
.hero-container {
    position: relative;
    z-index: 2;
}
.hero-grid {
    max-width: 720px;
}
.hero-tag {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 24px;
    letter-spacing: 0.05em;
}
.hero-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: #06b6d4;
    margin-bottom: 24px;
    padding: 6px 14px;
    border: 1px solid rgba(6, 182, 212, 0.4);
    border-radius: 100px;
    background: rgba(6, 182, 212, 0.08);
}
.hero-title {
    font-size: 44px;
    font-weight: 700;
    line-height: 1.25;
    margin: 0 0 24px;
    color: #fff;
    letter-spacing: -0.01em;
}
.hero-highlight {
    background: linear-gradient(135deg, #06b6d4 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-divider {
    width: 48px;
    height: 2px;
    background: linear-gradient(90deg, #06b6d4 0%, #f59e0b 100%);
    margin: 0 0 24px;
}
.hero-subtitle {
    font-size: 17px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
    max-width: 620px;
    font-weight: 400;
}
.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}
.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    padding: 24px 32px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    max-width: 600px;
}
.stat-item {
    text-align: center;
    flex: 1;
}
.stat-num {
    font-size: 32px;
    font-weight: 800;
    color: #fff;
    line-height: 1;
    margin-bottom: 6px;
    font-family: var(--font-display);
}
.stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}
.stat-divider {
    width: 1px;
    height: 32px;
    background: rgba(255, 255, 255, 0.2);
}
@media (max-width: 768px) {
    .hero-title { font-size: 40px; }
    .hero-stats { display: none; }
    .hero-new { min-height: auto; padding: 120px 0 60px; }
}

@media (max-height: 650px) {
    .hero-stats { display: none; }
    .hero-cta { margin-bottom: 0; }
}

@media (max-height: 500px) {
    .hero-new { padding: 80px 0 40px; }
}

/* ========== 通用 section ========== */
.section { padding: 100px 0; }
.section-header {
    text-align: center;
    margin-bottom: 64px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}
.section-eyebrow {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(26, 78, 216, 0.08);
    color: var(--primary-blue);
    font-size: 13px;
    font-weight: 700;
    border-radius: 100px;
    margin-bottom: 16px;
    letter-spacing: 0.05em;
}
.section-title {
    font-size: 42px;
    font-weight: 800;
    color: var(--text-dark);
    margin: 0 0 16px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}
.section-desc {
    font-size: 17px;
    color: var(--text-gray);
    margin: 0;
    line-height: 1.7;
}
@media (max-width: 768px) {
    .section { padding: 60px 0; }
    .section-title { font-size: 30px; }
}

/* ========== 能力卡片 ========== */
.capabilities-section { background: #fff; padding-top: 140px; }
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.capability-card {
    padding: 40px 32px;
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.capability-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s;
}
.capability-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}
.capability-card:hover::before { transform: scaleX(1); }
.capability-icon {
    /* 重构为顶部全宽横幅（跟行业卡同款布局） */
    width: calc(100% + 64px);
    height: 200px;
    margin: -40px -32px 24px -32px;
    border-radius: 16px 16px 0 0;
    overflow: hidden;
    box-shadow: none;
    position: relative;
}
.capability-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.capability-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 12px;
}
.capability-card p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0 0 20px;
}
.capability-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.capability-list li {
    position: relative;
    padding-left: 20px;
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 8px;
}
.capability-list li::before {
    content: '';
    position: absolute;
    left: 0; top: 9px;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent-cyan);
}
@media (max-width: 900px) {
    .capabilities-grid { grid-template-columns: 1fr; }
}

/* ========== 行业卡片 ========== */
.industries-section { background: var(--bg-light); }
.industries-grid-new {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}
.industry-card-new {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.industry-card-new:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}
.industry-card-img {
    height: 180px;
    position: relative;
    overflow: hidden;
}
.industry-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.industry-card-img::before {
    content: '';
    position: absolute;
    top: -50%; right: -20%;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}
.industry-card-body {
    padding: 32px;
}
.industry-card-body h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 12px;
}
.industry-card-body p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0 0 20px;
}
.industry-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}
.industry-tags span {
    padding: 6px 12px;
    background: rgba(26, 78, 216, 0.08);
    color: var(--primary-blue);
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
}
.card-link {
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
}
.card-link:hover { color: var(--primary-navy); }
@media (max-width: 768px) {
    .industries-grid-new { grid-template-columns: 1fr; }
}

/* ========== 行业洞察 ========== */
.insights-section { background: #fff; }
.insights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.insight-card {
    padding: 0;
    background: var(--bg-light);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.insight-card:hover {
    background: #fff;
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}
.insight-card .card-image {
    width: 100% !important;
    max-width: 100% !important;
    aspect-ratio: 3 / 2;
    overflow: hidden;
    background: #f1f5f9;
    padding: 0 !important;
    margin: 0 !important;
    box-sizing: border-box !important;
}
.insight-card .card-image img {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 100% !important;
    height: 100% !important;
    min-height: 100% !important;
    object-fit: cover;
    display: block;
    margin: 0 !important;
    padding: 0 !important;
    transition: transform 0.5s ease;
}
.insight-card:hover .card-image img {
    transform: scale(1.05);
}
.insight-card h3,
.insight-card p {
    padding-left: 28px;
    padding-right: 28px;
}
.insight-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
    padding-top: 24px;
    padding-bottom: 8px;
    line-height: 1.4;
}
.insight-card p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0;
    padding-bottom: 28px;
    flex: 1;
}
@media (max-width: 900px) {
    .insights-grid { grid-template-columns: 1fr; }
}

/* ========== 项目流程时间线 ========== */
.process-section {
    background: linear-gradient(180deg, #fff 0%, var(--bg-light) 100%);
    padding: 140px 0 120px;
}
.process-timeline {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}
.timeline-item {
    padding: 32px 24px;
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    text-align: center;
    position: relative;
    transition: var(--transition);
}
.timeline-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}
.timeline-num {
    width: 48px;
    height: 48px;
    line-height: 48px;
    background: var(--hero-gradient);
    color: #fff;
    border-radius: 50%;
    margin: 0 auto 20px;
    font-size: 18px;
    font-weight: 800;
    font-family: var(--font-display);
}
.timeline-item h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 8px;
}
.timeline-item p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
    margin: 0;
}
@media (max-width: 900px) {
    .process-timeline { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
    .process-timeline { grid-template-columns: 1fr; }
}

/* ========== 合作伙伴 ========== */
.partners-section {
    padding: 80px 0;
    background: #fff;
    border-top: 1px solid var(--border-color);
}
.partners-title {
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-light);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 40px;
}
.partners-logos {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    max-width: 960px;
    margin: 0 auto;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-white, #fff);
}
.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 96px;
    padding: 16px 24px;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-gray);
    letter-spacing: 0.02em;
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s, color 0.2s;
    background: #fff;
}
.partner-logo:nth-child(4n) { border-right: 0; }
.partner-logo:nth-last-child(-n+4) { border-bottom: 0; }
.partner-logo:hover {
    background: #f8fafc;
    color: var(--primary, #1a4ed8);
}

@media (max-width: 768px) {
    .partners-logos { grid-template-columns: repeat(2, 1fr); max-width: 480px; }
    .partner-logo { font-size: 15px; min-height: 80px; }
    .partner-logo:nth-child(4n) { border-right: 1px solid var(--border-color); }
    .partner-logo:nth-child(2n) { border-right: 0; }
    .partner-logo:nth-last-child(-n+4) { border-bottom: 1px solid var(--border-color); }
    .partner-logo:nth-last-child(-n+2) { border-bottom: 0; }
}

/* ========== Solution 卡片（solutions.html）========== */
.solution-card {
    padding: 0;
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}
.solution-image {
    width: 100%;
    aspect-ratio: 16 / 7;
    overflow: hidden;
    background: #f1f5f9;
}
.solution-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.solution-card:hover .solution-image img {
    transform: scale(1.05);
}
.solution-card .solution-title,
.solution-card .solution-desc,
.solution-card .solution-detail {
    padding-left: 32px;
    padding-right: 32px;
}
.solution-card .solution-title {
    padding-top: 28px;
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
}
.solution-card .solution-desc {
    padding-top: 12px;
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0;
}
.solution-card .solution-detail {
    padding-top: 20px;
    padding-bottom: 28px;
    margin-top: 24px;
    border-top: 1px solid var(--border-color);
    flex: 1;
}
.solution-detail h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary-navy);
    margin: 0 0 12px;
}
.solution-detail ul {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}
.solution-detail ul:last-child { margin-bottom: 0; }
.solution-detail ul li {
    position: relative;
    padding-left: 18px;
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 8px;
    line-height: 1.6;
}
.solution-detail ul li::before {
    content: '';
    position: absolute;
    left: 0; top: 9px;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent-cyan);
}
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
@media (max-width: 900px) {
    .solutions-grid { grid-template-columns: 1fr; }
}

/* ========== Solutions 页面 区块补充（timeline + regulation + challenges）========== */

/* 实施流程 timeline */
.solution-process {
    margin: 64px 0 0;
}
.solution-process > h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 12px;
    padding-left: 16px;
    position: relative;
}
.solution-process > h3::before {
    content: '';
    position: absolute;
    left: 0; top: 8px; bottom: 8px;
    width: 4px;
    border-radius: 2px;
    background: linear-gradient(180deg, #06b6d4 0%, #f59e0b 100%);
}
.solution-process > p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.75;
    margin: 0 0 32px;
    max-width: 820px;
}
.process-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: step;
    position: relative;
}
/* 竖线 */
.process-steps::before {
    content: '';
    position: absolute;
    left: 31px;
    top: 30px;
    bottom: 30px;
    width: 2px;
    background: linear-gradient(180deg, var(--accent-cyan) 0%, #f59e0b 100%);
    border-radius: 2px;
}
.process-step {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 16px 0;
    position: relative;
}
.process-step .step-num {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--hero-gradient);
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 0 4px #fff, 0 4px 12px rgba(6,182,212,0.25);
    position: relative;
    z-index: 1;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    letter-spacing: 1px;
}
.process-step .step-body {
    flex: 1;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
    transition: var(--transition);
}
.process-step:hover .step-body {
    transform: translateX(4px);
    box-shadow: var(--shadow);
    border-color: transparent;
}
.process-step .step-body strong {
    display: block;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}
.process-step .step-body span {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
}
@media (max-width: 600px) {
    .process-steps::before { left: 23px; }
    .process-step .step-num { width: 48px; height: 48px; font-size: 15px; }
    .process-step { gap: 16px; }
}

/* 行业监管与要求 */
.regulation-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 24px 0 0;
}
.regulation-item {
    padding: 32px;
    background: #fff;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}
.regulation-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}
.regulation-item h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 16px;
    padding-left: 16px;
    position: relative;
}
.regulation-item h3::before {
    content: '';
    position: absolute;
    left: 0; top: 6px; bottom: 6px;
    width: 4px;
    border-radius: 2px;
    background: linear-gradient(180deg, #06b6d4 0%, #f59e0b 100%);
}
.regulation-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.regulation-item ul li {
    position: relative;
    padding-left: 22px;
    font-size: 14.5px;
    color: var(--text-gray);
    margin-bottom: 10px;
    line-height: 1.7;
}
.regulation-item ul li::before {
    content: '';
    position: absolute;
    left: 0; top: 9px;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent-cyan);
}
@media (max-width: 900px) {
    .regulation-grid { grid-template-columns: 1fr; }
}

/* 挑战与应对 */
.challenges-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 24px 0 0;
}
.challenge-item {
    padding: 28px;
    background: #fff;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-cyan);
    transition: var(--transition);
}
.challenge-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-left-color: #f59e0b;
}
.challenge-item h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 12px;
}
.challenge-desc {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0 0 12px;
}
.challenge-solution {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0;
    padding-top: 12px;
    border-top: 1px dashed var(--border-color);
}
.challenge-solution strong {
    color: var(--accent-cyan);
    font-weight: 700;
}
@media (max-width: 900px) {
    .challenges-list { grid-template-columns: 1fr; }
}

/* ========== About 页面 区块兼容（老 CSS 遗漏的）========== */
.about-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.about-content h3 {
    font-size: 34px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 24px 0 24px;
    padding-left: 20px;
    position: relative;
    line-height: 1.25;
    letter-spacing: -0.01em;
}
.about-content h3::before {
    content: '';
    position: absolute;
    left: 0; top: 6px; bottom: 6px;
    width: 5px;
    border-radius: 3px;
    background: linear-gradient(180deg, #06b6d4 0%, #f59e0b 100%);
}
.about-content > p {
    font-size: 17px;
    color: var(--text-gray);
    line-height: 1.85;
    margin: 0 0 18px;
    max-width: 820px;
}
.about-content > p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin: 0 0 20px;
}
.about-content .section-desc {
    font-size: 17px;
    color: var(--text-gray);
    margin: 0 0 32px;
    line-height: 1.7;
}
/* ========== About 页面 区块（about.html）========== */

/* 子标题装饰：左侧 4px 渐变竖条 + 略大字号 */
.about-advantage h3,
.about-tech h3,
.about-models h3,
.business-deploy h3,
.detail-block h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 56px 0 24px;
    padding-left: 16px;
    position: relative;
    line-height: 1.3;
}
.about-advantage h3::before,
.about-tech h3::before,
.about-models h3::before {
    content: '';
    position: absolute;
    left: 0; top: 8px; bottom: 8px;
    width: 4px;
    border-radius: 2px;
    background: linear-gradient(180deg, #06b6d4 0%, #f59e0b 100%);
}

/* About 介绍区：左文 + 右图 */
.about-intro {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 48px;
    align-items: center;
    margin: 0 0 16px;
}
.about-intro-text h3 {
    font-size: 30px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 20px;
    padding-left: 20px;
    position: relative;
    line-height: 1.3;
}
.about-intro-text h3::before {
    content: '';
    position: absolute;
    left: 0; top: 6px; bottom: 6px;
    width: 5px;
    border-radius: 3px;
    background: linear-gradient(180deg, #06b6d4 0%, #f59e0b 100%);
}
.about-intro-text p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.85;
    margin: 0 0 16px;
}
.about-intro-image img {
    width: 100%;
    height: auto;
    border-radius: 14px;
    box-shadow: var(--shadow);
    display: block;
}

/* 卡片顶部配图：统一圆角 + hover 缩放 */
.card-image {
    width: calc(100% + 56px);
    margin: -28px -28px 20px;
    overflow: hidden;
    border-radius: 14px 14px 0 0;
    aspect-ratio: 4 / 3;
    background: #f1f5f9;
}
.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.advantage-item:hover .card-image img,
.tech-category:hover .card-image img,
.model-item:hover .card-image img {
    transform: scale(1.05);
}

/* 统一卡片：白底 + 边 + 圆角 + hover 上浮 */
.advantage-grid,
.tech-categories,
.models-grid {
    display: grid;
    gap: 20px;
    margin: 0 0 40px;
}
.advantage-grid,
.tech-categories { grid-template-columns: repeat(4, 1fr); }
.models-grid { grid-template-columns: repeat(3, 1fr); }

.advantage-item,
.tech-category,
.model-item {
    padding: 28px;
    background: #fff;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}
.advantage-item:hover,
.tech-category:hover,
.model-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}
.advantage-item h4,
.tech-category h4,
.model-item h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 12px;
}
.advantage-item p,
.tech-category p,
.model-item p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.75;
    margin: 0;
}

.about-tech, .about-team, .about-models { margin: 0 0 16px; }

/* 历程时间线：左侧渐变竖线 + 节点圆点 */
.history-timeline {
    position: relative;
    padding: 12px 0;
    margin: 0 0 40px;
}
.history-timeline::before {
    content: '';
    position: absolute;
    left: 110px;
    top: 24px; bottom: 24px;
    width: 2px;
    background: linear-gradient(180deg, #06b6d4 0%, #f59e0b 100%);
    border-radius: 1px;
}
.history-item {
    position: relative;
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 32px;
    align-items: start;
    padding: 20px 0;
}
.history-year {
    text-align: right;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-navy);
    padding-right: 32px;
    line-height: 1.4;
    position: relative;
}
.history-year::after {
    content: '';
    position: absolute;
    right: -7px;
    top: 4px;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid #06b6d4;
    box-shadow: 0 0 0 4px var(--bg-light);
}
.history-item h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 8px;
    line-height: 1.4;
}
.history-item p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.75;
    margin: 0;
    max-width: 720px;
}
.history-content {
    min-width: 0;
}

/* 团队网格：3 列 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 0 0 40px;
}
.team-aspect {
    padding: 0;
    background: #fff;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.team-aspect:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
    border-color: transparent;
}
.team-aspect .card-image {
    width: 100% !important;
    max-width: 100% !important;
    aspect-ratio: 3 / 2;
    overflow: hidden;
    background: #f1f5f9;
    padding: 0 !important;
    margin: 0 !important;
    box-sizing: border-box !important;
}
.team-aspect .card-image img {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 100% !important;
    height: 100% !important;
    min-height: 100% !important;
    object-fit: cover;
    display: block;
    margin: 0 !important;
    padding: 0 !important;
    transition: transform 0.5s ease;
}
.team-aspect:hover .card-image img {
    transform: scale(1.05);
}
.team-aspect h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
    padding: 20px 20px 6px;
}
.team-aspect p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0;
    padding: 0 20px 20px;
    flex: 1;
}
@media (max-width: 1100px) {
    .team-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .team-grid { grid-template-columns: 1fr; }
}

@media (max-width: 1100px) {
    .advantage-grid, .tech-categories { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .advantage-grid, .tech-categories, .models-grid, .team-grid { grid-template-columns: 1fr; }
    .history-item { grid-template-columns: 1fr; gap: 8px; }
    .history-timeline::before { left: 8px; }
    .history-year { text-align: left; padding-right: 0; padding-left: 24px; }
    .history-year::after { right: auto; left: 2px; top: 4px; }
}

@media (max-width: 900px) {
    .about-intro { grid-template-columns: 1fr; gap: 28px; }
    .about-intro-image { order: -1; }
    .about-intro-text h3 { font-size: 26px; }
}
@media (max-width: 600px) {
    .about-intro-text h3 { font-size: 22px; }
}

/* ========== Business 页面 区块（business.html）========== */
.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}
.business-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
}
.business-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}
.business-card-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #f1f5f9;
}
.business-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.business-card:hover .business-card-img img {
    transform: scale(1.05);
}
.business-card-body {
    padding: 24px;
    flex: 1;
}
.business-card-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 10px;
}
.business-card-desc {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0 0 16px;
}
.business-card-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.business-card-list li {
    position: relative;
    padding-left: 20px;
    font-size: 13.5px;
    color: var(--text-gray);
    margin-bottom: 6px;
    line-height: 1.6;
}
.business-card-list li::before {
    content: '';
    position: absolute;
    left: 0; top: 9px;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent-cyan);
}
@media (max-width: 1100px) {
    .business-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .business-grid { grid-template-columns: 1fr; }
    .business-card-img { aspect-ratio: 16 / 8; }
}

/* ========== Business 页面 区块补充（business.html 下半部）========== */
.business-deploy {
    margin: 56px 0 0;
}
.business-deploy > p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.75;
    margin: 0 0 24px;
    max-width: 820px;
}
.deploy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 0 0 40px;
}

/* 中台能力详解 */
.business-detail-section {
    background: var(--bg-light);
    padding: 100px 0 120px;
}
.detail-block {
    margin: 0 0 32px;
    padding: 0;
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}
.detail-block:last-child { margin-bottom: 0; }
.detail-block-head {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 28px;
    background: linear-gradient(90deg, rgba(6,182,212,0.08) 0%, rgba(245,158,11,0.04) 100%);
    border-bottom: 1px solid var(--border-color);
}
.detail-block-head .head-icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    background: var(--hero-gradient);
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
}
.detail-block-head h3 {
    margin: 0 !important;
    padding: 0 !important;
    font-size: 20px !important;
    color: var(--text-dark) !important;
    background: none !important;
}
.detail-block-head h3::before { display: none !important; }
.detail-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border-color);
}
.detail-item {
    padding: 22px 24px;
    background: #fff;
    border-left: none;
    border-radius: 0;
    transition: background 0.2s;
}
.detail-item:hover { background: #f8fafc; }
.detail-item h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent-cyan);
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.detail-item p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0;
}

/* 响应式：部署模式 / 中台详情 */
@media (max-width: 1100px) {
    .detail-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
    .deploy-grid { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
    .detail-block { padding: 24px 20px; }
}

/* 部署模式 卡片：顶图 + 文案（与 about.html 卡片风格一致） */
.deploy-item {
    padding: 0;
    background: #fff;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.deploy-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}
.deploy-item .card-image {
    width: 100%;
    margin: 0;
    aspect-ratio: 16 / 9;
    border-radius: 14px 14px 0 0;
    overflow: hidden;
    background: #f1f5f9;
}
.deploy-item .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.deploy-item:hover .card-image img {
    transform: scale(1.05);
}
.deploy-item h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
    padding: 20px 24px 0;
}
.deploy-item p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.75;
    margin: 8px 0 0;
    padding: 0 24px 24px;
    flex: 1;
}

/* ========== Cases 页面 区块（cases.html）========== */
.cases-principles {
    margin: 32px 0 40px;
}
.cases-principles > h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 24px;
    padding-left: 16px;
    position: relative;
}
.cases-principles > h3::before {
    content: '';
    position: absolute;
    left: 0; top: 8px; bottom: 8px;
    width: 4px;
    border-radius: 2px;
    background: linear-gradient(180deg, #06b6d4 0%, #f59e0b 100%);
}
.principles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.principle-item {
    padding: 24px;
    background: var(--bg-light);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}
.principle-item:hover {
    background: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: transparent;
}
.principle-item h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary-navy);
    margin: 0 0 8px;
}
.principle-item p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0;
}
.cases-types-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 24px 0 40px;
}
.cases-type-item {
    padding: 24px;
    background: #fff;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}
.cases-type-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--primary-blue);
}
.cases-type-item h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary-navy);
    margin: 0 0 8px;
}
.cases-type-item p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0;
}
.industries-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 24px 0 0;
}
.industry-block {
    padding: 0;
    background: #fff;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-blue);
    transition: var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.industry-block:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-left-color: #f59e0b;
}
.industry-image {
    width: 100%;
    aspect-ratio: 16 / 5;
    overflow: hidden;
    background: #f1f5f9;
}
.industry-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.industry-block:hover .industry-image img {
    transform: scale(1.05);
}
.industry-block h3,
.industry-block ul {
    padding-left: 20px;
    padding-right: 20px;
}
.industry-block h3 {
    padding-top: 16px;
    padding-bottom: 8px;
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-dark);
    border-bottom: 1px solid var(--border-color);
}
.industry-block ul {
    padding-top: 10px;
    padding-bottom: 18px;
    margin: 0;
    list-style: none;
    flex: 1;
}
.industry-block ul li {
    position: relative;
    padding-left: 18px;
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 6px;
    line-height: 1.65;
}
.industry-block ul li::before {
    content: '';
    position: absolute;
    left: 0; top: 9px;
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--accent-cyan);
}
@media (max-width: 1100px) {
    .industries-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .industries-grid { grid-template-columns: 1fr; }
}
@media (max-width: 1100px) {
    .cases-types-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .principles-grid, .cases-types-grid, .industries-grid {
        grid-template-columns: 1fr;
    }
}

/* 业务卡 顶部序号标（cases.html 复用） */
.business-card-tag {
    background: var(--hero-gradient);
    color: #fff;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    padding: 14px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.15);
}
.business-card-tag + .business-card-body { padding-top: 24px; }

/* ========== Contact 页面 区块（contact.html）========== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 32px;
    margin: 0 0 40px;
}
.contact-info {
    padding: 32px;
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}
.contact-info h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 24px;
}
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
}
.contact-item:last-child { border-bottom: none; }
.contact-item-icon {
    width: 40px;
    height: 40px;
    background: var(--hero-gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.contact-item-icon svg {
    width: 20px;
    height: 20px;
    stroke: #fff;
    fill: none;
}
.contact-item-text {
    flex: 1;
}
.contact-item-text .label {
    font-size: 12px;
    color: var(--text-light);
    margin: 0 0 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.contact-item-text .value {
    font-size: 15px;
    color: var(--text-dark);
    font-weight: 500;
    margin: 0;
}
.contact-item-text a.value {
    color: var(--primary-blue);
    text-decoration: none;
}
.contact-item-text a.value:hover { text-decoration: underline; }
.contact-form-card {
    padding: 32px;
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}
.contact-form-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 24px;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    background: #fff;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(26, 78, 216, 0.1);
}
.form-group textarea {
    min-height: 120px;
    resize: vertical;
}
.contact-process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 24px 0 40px;
}
.contact-process-item {
    padding: 24px;
    background: var(--bg-light);
    border-radius: 12px;
    text-align: center;
    position: relative;
}
.cp-num {
    width: 40px;
    height: 40px;
    line-height: 40px;
    background: var(--hero-gradient);
    color: #fff;
    border-radius: 50%;
    margin: 0 auto 12px;
    font-size: 16px;
    font-weight: 800;
}
.contact-process-item h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 6px;
}
.contact-process-item p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
    margin: 0;
}
.form-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
}
.form-success svg {
    width: 64px;
    height: 64px;
    fill: var(--primary-blue);
    margin-bottom: 16px;
}
.form-success h5 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 8px;
}
.form-success p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0;
}
.submit-btn {
    padding: 12px 28px;
    background: var(--accent-gradient);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(26, 78, 216, 0.4);
}
.error-message {
    display: none;
    color: #e53e3e;
    font-size: 12px;
    margin-top: 4px;
}
.error-message.show { display: block; }

/* FAQ */
.faq-section {
    max-width: 800px;
    margin: 0 auto;
}
.faq-list {
    list-style: none;
    padding: 0;
    margin: 24px 0;
}
.faq-item {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item.open {
    box-shadow: var(--shadow);
    border-color: var(--primary-blue);
}
.faq-question {
    padding: 20px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}
.faq-question::after {
    content: '+';
    font-size: 24px;
    font-weight: 300;
    color: var(--primary-blue);
    transition: transform 0.2s;
}
.faq-item.open .faq-question::after {
    transform: rotate(45deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    color: var(--text-gray);
    font-size: 14px;
    line-height: 1.7;
}
.faq-item.open .faq-answer {
    max-height: 500px;
    padding: 0 24px 20px;
}
@media (max-width: 900px) {
    .contact-grid { grid-template-columns: 1fr; }
    .contact-process-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
    .contact-process-grid { grid-template-columns: 1fr; }
}

/* ========== Footer ========== */
footer {
    background: var(--primary-navy);
    color: rgba(255, 255, 255, 0.5);
    padding: 40px 0;
    text-align: center;
}
.footer-bottom p { margin: 0; }

/* ========== 返回顶部 ========== */
.back-to-top {
    position: fixed;
    bottom: 32px; right: 32px;
    width: 48px; height: 48px;
    background: var(--hero-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 99;
}
.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}
.back-to-top:hover { transform: translateY(-4px) scale(1.05); }

/* ========== 旧样式兼容（不删除原 CSS 避免页面报错）========== */
.about-section,
.business-section,
.solutions-section,
.cases-section,
.contact-section,
.industries-section,
.regulation-section,
.challenges-section,
.history-section,
.team-section,
.qual-section,
.cases-types-section,
.cases-industries-section,
.cases-contact-section,
.contact-process-section,
.contact-channels-section,
.faq-section { padding: 100px 0; }
.partners-section { padding: 80px 0 !important; }

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