/* ========================================
   泽码智跃科技 - 企业官网样式表
   设计理念：简约大气、科技感、专业
   ======================================== */

/* CSS 变量定义 */
:root {
    /* 主色调 */
    --color-primary: #0B1F3A;
    --color-primary-light: #1a3559;
    --color-accent: #2563eb;
    --color-accent-light: #3b82f6;
    --color-accent-gradient: linear-gradient(135deg, #2563eb 0%, #00c6ff 100%);
    --color-accent-gradient-soft: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(0, 198, 255, 0.08) 100%);

    /* 背景色 */
    --color-bg: #f7f9fc;
    --color-bg-alt: #ffffff;
    --color-bg-dark: #0B1F3A;

    /* 文字色 */
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-text-white: #ffffff;

    /* 边框 */
    --color-border: #e2e8f0;

    /* 间距 */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --shadow-accent: 0 8px 30px rgba(37, 99, 235, 0.25);

    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* 容器宽度 */
    --container-max: 1200px;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-bg-alt);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

ul {
    list-style: none;
}

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

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

/* ========================================
   导航栏
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.navbar-logo .logo-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--color-accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    font-weight: 800;
    box-shadow: var(--shadow-accent);
}

.navbar-logo .logo-text {
    letter-spacing: 0.5px;
}

.navbar-logo .logo-en {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--color-text-light);
    letter-spacing: 1px;
    margin-top: 2px;
}

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

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

.navbar-nav a:hover {
    color: var(--color-accent);
}

.navbar-nav a.active {
    color: var(--color-accent);
    background: var(--color-accent-gradient-soft);
}

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

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

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

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

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

/* ========================================
   通用 Section
   ======================================== */
.section {
    padding: var(--space-xl) 0;
}

.section-alt {
    background: var(--color-bg);
}

.section-dark {
    background: var(--color-bg-dark);
    color: var(--color-text-white);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-lg);
}

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    background: var(--color-accent-gradient-soft);
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.section-dark .section-tag {
    background: rgba(255, 255, 255, 0.1);
    color: #60a5fa;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

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

.section-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

.section-dark .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   按钮
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-accent-gradient);
    color: white;
    box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 36px rgba(37, 99, 235, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline-dark {
    background: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}

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

/* ========================================
   Hero 区域
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: var(--color-primary);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(0, 198, 255, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 60% 80%, rgba(37, 99, 235, 0.15) 0%, transparent 50%);
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    color: white;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: #00c6ff;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, #60a5fa 0%, #00c6ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.9;
    margin-bottom: 36px;
    max-width: 520px;
}

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

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-card {
    position: relative;
    width: 100%;
    max-width: 480px;
}

.hero-card-main {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.hero-card-main .code-window {
    background: rgba(11, 31, 58, 0.6);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.code-window-header {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.code-window-header span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-window-header span:nth-child(1) { background: #ff5f57; }
.code-window-header span:nth-child(2) { background: #ffbd2e; }
.code-window-header span:nth-child(3) { background: #28ca42; }

.code-window-body {
    padding: 20px 16px;
    font-family: "Consolas", "Courier New", monospace;
    font-size: 0.82rem;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.7);
}

.code-window-body .keyword { color: #c678dd; }
.code-window-body .function { color: #61afef; }
.code-window-body .string { color: #98c379; }
.code-window-body .comment { color: rgba(255, 255, 255, 0.3); }
.code-window-body .number { color: #d19a66; }

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
}

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

.hero-stat .num {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #60a5fa 0%, #00c6ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat .label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 4px;
}

/* 浮动装饰 */
.float-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.5;
    animation: float 6s ease-in-out infinite;
}

.float-orb-1 {
    width: 200px;
    height: 200px;
    background: #2563eb;
    top: -60px;
    right: -40px;
}

.float-orb-2 {
    width: 160px;
    height: 160px;
    background: #00c6ff;
    bottom: -40px;
    left: -30px;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ========================================
   卡片网格
   ======================================== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

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

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

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

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

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--color-accent-gradient-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 1.5rem;
}

.card-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--color-accent);
    fill: none;
    stroke-width: 2;
}

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

.card-desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.card-tag {
    padding: 4px 12px;
    background: var(--color-bg);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    color: var(--color-text-light);
}

/* ========================================
   数据统计区
   ======================================== */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    padding: 56px 0;
}

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

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -16px;
    top: 20%;
    bottom: 20%;
    width: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.stat-num {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #60a5fa 0%, #00c6ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.stat-label {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 8px;
}

/* ========================================
   时间线
   ======================================== */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-accent), var(--color-border));
}

.timeline-item {
    position: relative;
    padding-bottom: 48px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -34px;
    top: 4px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-accent);
    border: 3px solid white;
    box-shadow: 0 0 0 3px var(--color-accent-gradient-soft);
}

.timeline-year {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: 8px;
}

.timeline-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.timeline-desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ========================================
   价值观 / 特性列表
   ======================================== */
.feature-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.feature-item {
    display: flex;
    gap: 20px;
    padding: 28px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(96, 165, 250, 0.3);
    transform: translateY(-4px);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--color-accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
}

.feature-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    margin-bottom: 6px;
}

.feature-content p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

/* ========================================
   CTA 区域
   ======================================== */
.cta-section {
    position: relative;
    padding: 80px 0;
    background: var(--color-primary);
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 50%, rgba(37, 99, 235, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(0, 198, 255, 0.2) 0%, transparent 50%);
}

.cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.cta-inner h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.cta-inner p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 32px;
}

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

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-info-item {
    display: flex;
    gap: 20px;
    padding: 28px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.contact-info-item:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.contact-info-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: var(--color-accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.contact-info-icon svg {
    width: 24px;
    height: 24px;
    stroke: white;
    fill: none;
    stroke-width: 2;
}

.contact-info-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.contact-info-content p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* 联系表单 */
.contact-form {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.contact-form .form-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-group label .required {
    color: #ef4444;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    background: white;
    box-shadow: 0 0 0 3px var(--color-accent-gradient-soft);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

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

.form-success {
    display: none;
    padding: 16px 20px;
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    border-radius: var(--radius-sm);
    color: #065f46;
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.form-success.show {
    display: block;
    animation: fadeInDown 0.4s ease;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   页面 Banner (内页)
   ======================================== */
.page-banner {
    position: relative;
    padding: 160px 0 80px;
    background: var(--color-primary);
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 50%, rgba(37, 99, 235, 0.25) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(0, 198, 255, 0.15) 0%, transparent 50%);
}

.page-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.page-banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.page-banner h1 {
    font-size: 3rem;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}

.page-banner p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.5);
}

.breadcrumb a:hover {
    color: rgba(255, 255, 255, 0.9);
}

.breadcrumb span {
    color: rgba(255, 255, 255, 0.8);
}

/* ========================================
   技术栈展示
   ======================================== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.tech-item {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px 16px;
    text-align: center;
    transition: var(--transition);
}

.tech-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.tech-item .tech-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.tech-item .tech-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
}

/* ========================================
   流程步骤
   ======================================== */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    counter-reset: step;
}

.process-item {
    text-align: center;
    position: relative;
    padding: 32px 24px;
}

.process-item .step-num {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--color-accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    box-shadow: var(--shadow-accent);
    counter-increment: step;
}

.process-item h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.process-item p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

.process-item:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 32px;
    right: -12px;
    width: 24px;
    height: 2px;
    background: var(--color-border);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-primary);
    color: rgba(255, 255, 255, 0.6);
    padding: 64px 0 0;
}

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

.footer-brand .navbar-logo {
    margin-bottom: 16px;
}

.footer-brand .navbar-logo .logo-text {
    color: white;
}

.footer-brand .navbar-logo .logo-en {
    color: rgba(255, 255, 255, 0.4);
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.8;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: white;
    padding-left: 4px;
}

.footer-bottom {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.footer-bottom .icp a {
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom .icp a:hover {
    color: white;
}

.footer-bottom .copyright {
    color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   滚动动画
   ======================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ========================================
   响应式
   ======================================== */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 2.4rem;
    }

    .hero-visual {
        display: none;
    }

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

    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .stat-item:nth-child(2)::after {
        display: none;
    }

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

    .feature-list {
        grid-template-columns: 1fr;
    }

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

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

    .process-item:not(:last-child)::after {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .section-title {
        font-size: 2rem;
    }

    .page-banner h1 {
        font-size: 2.2rem;
    }
}

@media (max-width: 640px) {
    .navbar-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 16px;
        gap: 4px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        transition: var(--transition);
        border-bottom: 1px solid var(--color-border);
    }

    .navbar-nav.open {
        transform: translateY(0);
    }

    .navbar-nav a {
        width: 100%;
        padding: 14px 18px;
    }

    .navbar-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 1.9rem;
    }

    .hero-desc {
        font-size: 1rem;
    }

    .hero-actions {
        flex-direction: column;
    }

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

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }

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

    .stats-bar {
        grid-template-columns: 1fr 1fr;
    }

    .stat-item::after {
        display: none !important;
    }

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

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

    .form-row {
        grid-template-columns: 1fr;
    }

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

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

    .section-title {
        font-size: 1.7rem;
    }

    .page-banner {
        padding: 120px 0 60px;
    }

    .page-banner h1 {
        font-size: 1.8rem;
    }

    .contact-form {
        padding: 28px 20px;
    }

    .cta-inner h2 {
        font-size: 1.7rem;
    }
}