/* ========================================
   编程新知 - 全局样式表
   照明科技风 | 纯白 + 浅黄 + 深灰
   ======================================== */

/* CSS Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', sans-serif;
    line-height: 1.7;
    color: #3a3a3a;
    background-color: #ffffff;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul, ol {
    list-style: none;
}

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

/* ========================================
   颜色变量
   ======================================== */
:root {
    --primary-white: #ffffff;
    --secondary-white: #f8f9fa;
    --light-yellow: #fff9e6;
    --accent-yellow: #ffd54f;
    --deep-gray: #2d2d2d;
    --medium-gray: #5a5a5a;
    --light-gray: #e0e0e0;
    --border-color: #eeeeee;
    --shadow-light: rgba(0, 0, 0, 0.05);
    --shadow-medium: rgba(0, 0, 0, 0.1);
    --gradient-line: linear-gradient(90deg, transparent, #ffd54f, transparent);
}

/* ========================================
   顶部导航栏
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px var(--shadow-light);
    transition: all 0.4s ease;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px var(--shadow-medium);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 28px;
    font-weight: 700;
    color: var(--deep-gray);
    letter-spacing: 1px;
}

.logo img {
    width: 45px;
    height: 45px;
    object-fit: contain;
}

.logo span {
    background: linear-gradient(135deg, var(--deep-gray) 0%, var(--medium-gray) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 8px;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: block;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 500;
    color: var(--medium-gray);
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent-yellow);
    transition: width 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--deep-gray);
    background: var(--light-yellow);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 60%;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--deep-gray);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* 移动端菜单 */
@media (max-width: 1024px) {
    .nav-container {
        padding: 0 20px;
    }

    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--primary-white);
        flex-direction: column;
        padding: 30px 20px;
        gap: 10px;
        transition: left 0.4s ease;
        box-shadow: 0 10px 30px var(--shadow-medium);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu a {
        padding: 18px 24px;
        font-size: 16px;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu a::after {
        display: none;
    }
}

/* ========================================
   页脚
   ======================================== */
.footer {
    background: var(--deep-gray);
    color: var(--primary-white);
    padding: 80px 0 40px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 60px;
    margin-bottom: 60px;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 25px;
    color: var(--accent-yellow);
    position: relative;
    padding-bottom: 12px;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent-yellow);
}

.footer-section p {
    font-size: 14px;
    line-height: 2;
    color: #b0b0b0;
    margin-bottom: 15px;
}

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

.footer-section ul li a {
    font-size: 14px;
    color: #b0b0b0;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-section ul li a:hover {
    color: var(--accent-yellow);
    transform: translateX(8px);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
    font-size: 14px;
    color: #b0b0b0;
}

.footer-contact li i {
    width: 20px;
    height: 20px;
    background: var(--accent-yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--deep-gray);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    font-size: 14px;
    color: #888;
}

.footer-links {
    display: flex;
    gap: 25px;
}

.footer-links a {
    font-size: 14px;
    color: #888;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-yellow);
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-container {
        padding: 0 20px;
    }

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

/* ========================================
   通用组件
   ======================================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--deep-gray);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-line);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--medium-gray);
    margin-top: 25px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 14px 35px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-yellow) 0%, #ffb300 100%);
    color: var(--deep-gray);
    box-shadow: 0 4px 15px rgba(255, 213, 79, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 213, 79, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--deep-gray);
    border: 2px solid var(--deep-gray);
}

.btn-secondary:hover {
    background: var(--deep-gray);
    color: var(--primary-white);
}

/* 卡片样式 */
.card {
    background: var(--primary-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: all 0.4s ease;
    border: 1px solid var(--border-color);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px var(--shadow-medium);
}

.card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.card:hover .card-image {
    transform: scale(1.05);
}

.card-content {
    padding: 25px;
}

.card-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 12px;
    line-height: 1.4;
}

.card-text {
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.8;
    margin-bottom: 15px;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: #888;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

/* 网格布局 */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

@media (max-width: 992px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 20px;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 32px;
    }
}

/* ========================================
   动画效果
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* ========================================
   渐变分割线
   ======================================== */
.gradient-divider {
    height: 1px;
    background: var(--gradient-line);
    margin: 60px 0;
    border: none;
}

/* ========================================
   面包屑导航
   ======================================== */
.breadcrumb {
    padding: 120px 0 40px;
    background: var(--secondary-white);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--medium-gray);
}

.breadcrumb-list a {
    color: var(--medium-gray);
    transition: color 0.3s ease;
}

.breadcrumb-list a:hover {
    color: var(--accent-yellow);
}

.breadcrumb-list span {
    color: var(--accent-yellow);
}

.breadcrumb-list .separator {
    color: var(--light-gray);
}

/* ========================================
   侧边栏布局
   ======================================== */
.sidebar-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 50px;
}

@media (max-width: 992px) {
    .sidebar-layout {
        grid-template-columns: 1fr;
    }
}

.sidebar {
    background: var(--secondary-white);
    border-radius: 12px;
    padding: 30px;
    height: fit-content;
    position: sticky;
    top: 100px;
}

.sidebar-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--accent-yellow);
}

.sidebar-menu li {
    margin-bottom: 10px;
}

.sidebar-menu a {
    display: block;
    padding: 12px 18px;
    font-size: 15px;
    color: var(--medium-gray);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--light-yellow);
    color: var(--deep-gray);
    padding-left: 24px;
}

/* ========================================
   文章列表样式
   ======================================== */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.article-item {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
    padding: 25px;
    background: var(--primary-white);
    border-radius: 12px;
    box-shadow: 0 3px 15px var(--shadow-light);
    transition: all 0.4s ease;
    border: 1px solid var(--border-color);
}

.article-item:hover {
    box-shadow: 0 8px 30px var(--shadow-medium);
    transform: translateX(5px);
}

.article-item-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    transition: transform 0.4s ease;
}

.article-item:hover .article-item-image {
    transform: scale(1.03);
}

.article-item-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.article-item-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 12px;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.article-item:hover .article-item-title {
    color: var(--accent-yellow);
}

.article-item-excerpt {
    font-size: 15px;
    color: var(--medium-gray);
    line-height: 1.8;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-item-meta {
    display: flex;
    gap: 25px;
    font-size: 13px;
    color: #888;
}

.article-item-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

@media (max-width: 768px) {
    .article-item {
        grid-template-columns: 1fr;
    }

    .article-item-image {
        height: 200px;
    }
}

/* ========================================
   文章详情样式
   ======================================== */
.article-detail {
    background: var(--primary-white);
    border-radius: 12px;
    padding: 50px;
    box-shadow: 0 5px 25px var(--shadow-light);
}

.article-detail-header {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.article-detail-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--deep-gray);
    margin-bottom: 20px;
    line-height: 1.4;
}

.article-detail-meta {
    display: flex;
    gap: 30px;
    font-size: 14px;
    color: #888;
}

.article-detail-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.article-detail-content {
    font-size: 17px;
    line-height: 2;
    color: var(--medium-gray);
}

.article-detail-content p {
    margin-bottom: 25px;
}

.article-detail-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 30px 0;
    box-shadow: 0 3px 15px var(--shadow-light);
}

.article-detail-content h2 {
    font-size: 26px;
    font-weight: 600;
    color: var(--deep-gray);
    margin: 40px 0 20px;
}

.article-detail-content h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--deep-gray);
    margin: 35px 0 15px;
}

.article-detail-content ul,
.article-detail-content ol {
    margin: 20px 0 20px 30px;
}

.article-detail-content li {
    margin-bottom: 10px;
}

.article-detail-content code {
    background: var(--secondary-white);
    padding: 3px 10px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 15px;
    color: var(--deep-gray);
}

.article-detail-content pre {
    background: var(--deep-gray);
    color: var(--primary-white);
    padding: 25px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 30px 0;
}

.article-detail-content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
}

@media (max-width: 768px) {
    .article-detail {
        padding: 30px;
    }

    .article-detail-title {
        font-size: 28px;
    }

    .article-detail-meta {
        flex-direction: column;
        gap: 10px;
    }
}

/* ========================================
   相关新闻模块
   ======================================== */
.related-news {
    margin-top: 60px;
    padding-top: 50px;
    border-top: 1px solid var(--border-color);
}

.related-news-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 30px;
}

.related-news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

@media (max-width: 768px) {
    .related-news-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   资讯分类标签
   ======================================== */
.news-category {
    display: inline-block;
    padding: 6px 15px;
    background: var(--light-yellow);
    color: var(--deep-gray);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 15px;
}

/* ========================================
   搜索框
   ======================================== */
.search-box {
    position: relative;
    margin-bottom: 30px;
}

.search-box input {
    width: 100%;
    padding: 15px 50px 15px 20px;
    font-size: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    outline: none;
    transition: border-color 0.3s ease;
}

.search-box input:focus {
    border-color: var(--accent-yellow);
}

.search-box button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: var(--accent-yellow);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-box button:hover {
    background: #ffb300;
}

/* ========================================
   关于我们页面专属样式
   ======================================== */
.about-preview-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 50px;
}

.about-preview-image {
    position: relative;
}

.about-preview-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.about-preview-content {
    padding: 20px;
}

.about-preview-label {
    display: inline-block;
    padding: 8px 20px;
    background: var(--light-yellow);
    color: var(--deep-gray);
    font-size: 14px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 20px;
    border: 1px solid var(--accent-yellow);
}

.about-preview-title {
    font-size: 38px;
    font-weight: 700;
    color: var(--deep-gray);
    line-height: 1.3;
    margin-bottom: 25px;
}

.about-preview-text {
    font-size: 16px;
    color: var(--medium-gray);
    line-height: 2;
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: var(--secondary-white);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-medium);
}

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--accent-yellow);
    margin-bottom: 10px;
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--medium-gray);
    font-weight: 500;
}

@media (max-width: 992px) {
    .about-preview-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-preview-image {
        order: -1;
    }

    .about-preview-title {
        font-size: 32px;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }

    .stat-number {
        font-size: 32px;
    }

    .stat-label {
        font-size: 12px;
    }
}

@media (max-width: 576px) {
    .about-preview-title {
        font-size: 26px;
    }

    .about-preview-text {
        font-size: 14px;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .stat-item {
        padding: 15px;
    }

    .stat-number {
        font-size: 28px;
    }
}

/* ========================================
   部署教程页面专属样式
   ======================================== */
.hero-deploy {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, var(--secondary-white) 0%, var(--primary-white) 100%);
    position: relative;
    overflow: hidden;
}

.hero-deploy::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 213, 79, 0.08) 0%, transparent 70%);
    transform: rotate(-15deg);
}

.deploy-hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 2;
}

.deploy-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--light-yellow);
    color: var(--accent-yellow);
    font-size: 14px;
    font-weight: 600;
    border-radius: 30px;
    border: 2px solid var(--accent-yellow);
    margin-bottom: 25px;
}

.deploy-title {
    font-size: 52px;
    font-weight: 700;
    color: var(--deep-gray);
    line-height: 1.2;
    margin-bottom: 20px;
}

.deploy-title .highlight-yellow {
    color: var(--accent-yellow);
    position: relative;
}

.deploy-subtitle {
    font-size: 20px;
    color: var(--medium-gray);
    max-width: 600px;
    margin-bottom: 40px;
    line-height: 1.6;
}

.deploy-stats-row {
    display: flex;
    gap: 50px;
    flex-wrap: wrap;
}

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

.deploy-stat .stat-num {
    display: block;
    font-size: 42px;
    font-weight: 700;
    color: var(--accent-yellow);
    line-height: 1;
    margin-bottom: 8px;
}

.deploy-stat .stat-desc {
    font-size: 14px;
    color: var(--medium-gray);
}

.deploy-hero-visual {
    margin-top: 60px;
    padding: 40px;
    background: var(--primary-white);
    border-radius: 16px;
    box-shadow: 0 10px 40px var(--shadow-medium);
}

.pipeline-diagram {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.pipeline-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 20px;
    border-radius: 12px;
    transition: all 0.3s ease;
    min-width: 120px;
}

.pipeline-step.active {
    background: var(--light-yellow);
    transform: scale(1.05);
}

.pipeline-step img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.pipeline-step span {
    font-size: 14px;
    font-weight: 600;
    color: var(--deep-gray);
}

.pipeline-arrow {
    font-size: 32px;
    color: var(--accent-yellow);
    font-weight: 700;
}

.deploy-tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.deploy-tool-card {
    background: var(--primary-white);
    border-radius: 16px;
    padding: 35px;
    border: 1px solid var(--border-color);
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.deploy-tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--accent-yellow);
    transition: height 0.4s ease;
}

.deploy-tool-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px var(--shadow-medium);
}

.deploy-tool-card:hover::before {
    height: 100%;
}

.deploy-tool-card.featured {
    background: linear-gradient(135deg, var(--light-yellow) 0%, var(--primary-white) 100%);
    border-color: var(--accent-yellow);
}

.tool-icon-bg {
    width: 80px;
    height: 80px;
    background: var(--light-yellow);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.tool-icon-bg img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.tool-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 15px;
}

.tool-desc {
    font-size: 15px;
    color: var(--medium-gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.tool-features {
    list-style: none;
    margin-bottom: 25px;
}

.tool-features li {
    font-size: 14px;
    color: var(--medium-gray);
    padding: 8px 0;
    border-bottom: 1px dashed var(--border-color);
}

.tool-features li:last-child {
    border-bottom: none;
}

.btn-outline {
    display: inline-block;
    padding: 12px 30px;
    border: 2px solid var(--deep-gray);
    color: var(--deep-gray);
    font-size: 15px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: var(--deep-gray);
    color: var(--primary-white);
}

.section-offset {
    padding-top: 120px;
}

.text-white {
    color: var(--primary-white) !important;
}

.deploy-steps-container {
    position: relative;
    padding: 60px 0;
}

.step-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 40px;
    margin-bottom: 50px;
    padding: 35px;
    background: var(--primary-white);
    border-radius: 16px;
    box-shadow: 0 5px 25px var(--shadow-light);
    transition: all 0.4s ease;
}

.step-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 35px var(--shadow-medium);
}

.step-number {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-yellow) 0%, #ffb300 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--deep-gray);
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 15px;
}

.step-content p {
    font-size: 15px;
    color: var(--medium-gray);
    line-height: 1.8;
}

.resource-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.resource-card {
    background: var(--secondary-white);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.resource-card:hover {
    background: var(--light-yellow);
    border-color: var(--accent-yellow);
    transform: translateY(-5px);
}

.resource-card i {
    font-size: 40px;
    margin-bottom: 15px;
    display: block;
}

.resource-card span {
    font-size: 16px;
    font-weight: 600;
    color: var(--deep-gray);
}

@media (max-width: 992px) {
    .deploy-tools-grid,
    .resource-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .deploy-title {
        font-size: 42px;
    }
    
    .pipeline-diagram {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .deploy-tools-grid,
    .resource-cards {
        grid-template-columns: 1fr;
    }
    
    .deploy-title {
        font-size: 32px;
    }
    
    .step-item {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .step-number {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
}

/* ========================================
   项目案例页面专属样式
   ======================================== */
.hero-projects {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, var(--deep-gray) 0%, #3a3a3a 100%);
    position: relative;
    overflow: hidden;
}

.hero-projects::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 213, 79, 0.1) 0%, transparent 70%);
    transform: rotate(15deg);
}

.projects-hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 2;
}

.projects-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 213, 79, 0.15);
    color: var(--accent-yellow);
    font-size: 14px;
    font-weight: 600;
    border-radius: 30px;
    border: 2px solid var(--accent-yellow);
    margin-bottom: 25px;
}

.projects-title {
    font-size: 52px;
    font-weight: 700;
    color: var(--primary-white);
    line-height: 1.2;
    margin-bottom: 20px;
}

.projects-title .highlight-yellow {
    color: var(--accent-yellow);
}

.projects-subtitle {
    font-size: 20px;
    color: #b0b0b0;
    max-width: 600px;
    margin-bottom: 40px;
    line-height: 1.6;
}

.projects-filter {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.filter-btn {
    padding: 10px 25px;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--primary-white);
    font-size: 14px;
    font-weight: 500;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-yellow);
    border-color: var(--accent-yellow);
    color: var(--deep-gray);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
    margin-top: 60px;
}

.project-card {
    background: var(--primary-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 5px 25px var(--shadow-light);
    transition: all 0.4s ease;
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 45px var(--shadow-medium);
}

.project-image-wrapper {
    position: relative;
    overflow: hidden;
    height: 220px;
}

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

.project-card:hover .project-image-wrapper img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(45, 45, 45, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-overlay a {
    padding: 12px 30px;
    background: var(--accent-yellow);
    color: var(--deep-gray);
    font-size: 15px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
}

.project-content {
    padding: 28px;
}

.project-category {
    display: inline-block;
    padding: 6px 15px;
    background: var(--light-yellow);
    color: var(--accent-yellow);
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 15px;
}

.project-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 12px;
    line-height: 1.4;
}

.project-desc {
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.project-tech {
    display: flex;
    gap: 8px;
}

.tech-tag {
    font-size: 12px;
    color: #888;
    background: var(--secondary-white);
    padding: 4px 10px;
    border-radius: 4px;
}

.project-difficulty {
    font-size: 13px;
    color: var(--medium-gray);
}

.timeline-section {
    background: var(--secondary-white);
    padding: 100px 0;
}

.learning-path {
    max-width: 1000px;
    margin: 50px auto 0;
    position: relative;
}

.learning-path::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: var(--accent-yellow);
}

.path-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 50px;
    position: relative;
}

.path-item:nth-child(even) {
    direction: rtl;
}

.path-item:nth-child(even) .path-content {
    direction: ltr;
}

.path-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--accent-yellow);
    border-radius: 50%;
    border: 4px solid var(--primary-white);
    box-shadow: 0 0 0 4px var(--light-yellow);
}

.path-content {
    background: var(--primary-white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 20px var(--shadow-light);
}

.path-time {
    font-size: 14px;
    color: var(--accent-yellow);
    font-weight: 600;
    margin-bottom: 10px;
}

.path-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 12px;
}

.path-content p {
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.7;
}

@media (max-width: 992px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-title {
        font-size: 42px;
    }
    
    .learning-path::before {
        left: 20px;
    }
    
    .path-item,
    .path-item:nth-child(even) {
        grid-template-columns: 1fr;
        direction: ltr;
        gap: 20px;
    }
    
    .path-dot {
        left: 20px;
    }
}

@media (max-width: 576px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-title {
        font-size: 32px;
    }
    
    .projects-filter {
        justify-content: center;
    }
}

/* ========================================
   问答专区页面专属样式
   ======================================== */
.hero-qa {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, var(--secondary-white) 0%, var(--primary-white) 100%);
    position: relative;
}

.qa-hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.qa-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--light-yellow);
    color: var(--accent-yellow);
    font-size: 14px;
    font-weight: 600;
    border-radius: 30px;
    border: 2px solid var(--accent-yellow);
    margin-bottom: 25px;
}

.qa-title {
    font-size: 52px;
    font-weight: 700;
    color: var(--deep-gray);
    line-height: 1.2;
    margin-bottom: 20px;
}

.qa-subtitle {
    font-size: 20px;
    color: var(--medium-gray);
    max-width: 600px;
    margin-bottom: 40px;
    line-height: 1.6;
}

.qa-search-box {
    max-width: 700px;
    margin: 40px 0;
    position: relative;
}

.qa-search-input {
    width: 100%;
    padding: 20px 60px 20px 30px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    outline: none;
    transition: all 0.3s ease;
    background: var(--primary-white);
}

.qa-search-input:focus {
    border-color: var(--accent-yellow);
    box-shadow: 0 0 0 4px rgba(255, 213, 79, 0.15);
}

.qa-search-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: var(--accent-yellow);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all 0.3s ease;
}

.qa-search-btn:hover {
    background: #ffb300;
    transform: translateY(-50%) scale(1.05);
}

.qa-stats-bar {
    display: flex;
    gap: 50px;
    flex-wrap: wrap;
    padding: 30px;
    background: var(--primary-white);
    border-radius: 12px;
    box-shadow: 0 5px 20px var(--shadow-light);
    margin-top: 40px;
}

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

.qa-stat-num {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-yellow);
    line-height: 1;
    margin-bottom: 8px;
}

.qa-stat-label {
    font-size: 14px;
    color: var(--medium-gray);
}

.qa-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin: 60px 0;
}

.qa-category-card {
    background: var(--primary-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: all 0.4s ease;
    cursor: pointer;
}

.qa-category-card:hover {
    border-color: var(--accent-yellow);
    background: var(--light-yellow);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-light);
}

.qa-category-icon {
    width: 70px;
    height: 70px;
    background: var(--light-yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
}

.qa-category-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 8px;
}

.qa-category-count {
    font-size: 13px;
    color: #888;
}

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

.qa-question-card {
    background: var(--primary-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 28px;
    transition: all 0.4s ease;
}

.qa-question-card:hover {
    border-color: var(--accent-yellow);
    box-shadow: 0 8px 25px var(--shadow-light);
    transform: translateX(5px);
}

.qa-question-header {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 15px;
}

.qa-vote-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    padding: 10px 15px;
    background: var(--secondary-white);
    border-radius: 8px;
    min-width: 60px;
}

.qa-vote-num {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-yellow);
}

.qa-vote-label {
    font-size: 11px;
    color: #888;
    text-transform: uppercase;
}

.qa-question-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 10px;
    line-height: 1.4;
}

.qa-question-content h3 a:hover {
    color: var(--accent-yellow);
}

.qa-question-excerpt {
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.7;
    margin-bottom: 15px;
}

.qa-question-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.qa-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.qa-tag {
    font-size: 12px;
    color: var(--medium-gray);
    background: var(--secondary-white);
    padding: 5px 12px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.qa-stats {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: #888;
}

.qa-stats span {
    display: flex;
    align-items: center;
    gap: 6px;
}

@media (max-width: 992px) {
    .qa-categories {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .qa-title {
        font-size: 42px;
    }
}

@media (max-width: 576px) {
    .qa-categories {
        grid-template-columns: 1fr;
    }
    
    .qa-title {
        font-size: 32px;
    }
    
    .qa-question-header {
        flex-direction: column;
        gap: 15px;
    }
    
    .qa-vote-box {
        width: 100%;
        flex-direction: row;
        justify-content: center;
    }
}

/* ========================================
   全栈知识页面专属样式
   ======================================== */
    padding: 180px 0 100px;
    background: linear-gradient(135deg, var(--deep-gray) 0%, #4a4a4a 100%);
    position: relative;
    overflow: hidden;
}

    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 100%;
    height: 300%;
    background: radial-gradient(circle, rgba(255, 213, 79, 0.08) 0%, transparent 70%);
    transform: rotate(-20deg);
}

    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 2;
}

    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 213, 79, 0.15);
    color: var(--accent-yellow);
    font-size: 14px;
    font-weight: 600;
    border-radius: 30px;
    border: 2px solid var(--accent-yellow);
    margin-bottom: 25px;
}

    font-size: 52px;
    font-weight: 700;
    color: var(--primary-white);
    line-height: 1.2;
    margin-bottom: 20px;
}

    font-size: 20px;
    color: #b0b0b0;
    max-width: 600px;
    margin-bottom: 40px;
    line-height: 1.6;
}

    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
    margin-top: 50px;
}

.layer-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 25px 15px;
    text-align: center;
    transition: all 0.4s ease;
}

.layer-item:hover {
    background: rgba(255, 213, 79, 0.15);
    border-color: var(--accent-yellow);
    transform: translateY(-8px);
}

.layer-icon {
    font-size: 40px;
    margin-bottom: 15px;
    display: block;
}

.layer-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-white);
    margin-bottom: 8px;
}

.layer-tech {
    font-size: 11px;
    color: #888;
    line-height: 1.6;
}

.knowledge-map {
    margin: 80px 0;
    padding: 60px;
    background: var(--primary-white);
    border-radius: 20px;
    box-shadow: 0 10px 40px var(--shadow-medium);
}

.map-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.map-category {
    text-align: center;
}

.map-category-icon {
    width: 80px;
    height: 80px;
    background: var(--light-yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 36px;
}

.map-category-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 15px;
}

.map-skills {
    list-style: none;
}

.map-skills li {
    font-size: 13px;
    color: var(--medium-gray);
    padding: 6px 0;
    border-bottom: 1px dashed var(--border-color);
}

.map-skills li:last-child {
    border-bottom: none;
}

.roadmap-section {
    background: var(--secondary-white);
    padding: 100px 0;
}

.roadmap-container {
    max-width: 1200px;
    margin: 50px auto 0;
}

.roadmap-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 40px;
    margin-bottom: 40px;
    padding: 30px;
    background: var(--primary-white);
    border-radius: 16px;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: all 0.4s ease;
}

.roadmap-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 35px var(--shadow-medium);
}

.roadmap-period {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--light-yellow);
    border-radius: 12px;
    border: 2px solid var(--accent-yellow);
}

.roadmap-months {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent-yellow);
    line-height: 1;
}

.roadmap-label {
    font-size: 13px;
    color: var(--medium-gray);
    margin-top: 8px;
}

.roadmap-content h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 15px;
}

.roadmap-content ul {
    list-style: none;
}

.roadmap-content li {
    font-size: 15px;
    color: var(--medium-gray);
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.roadmap-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-yellow);
    font-weight: 700;
}

@media (max-width: 992px) {
    .map-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
        font-size: 42px;
    }
    
    .roadmap-item {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 576px) {
    .map-grid {
        grid-template-columns: 1fr;
    }
    
        font-size: 32px;
    }
}

/* ========================================
   界面定制页面专属样式
   ======================================== */
.hero-ui {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, var(--secondary-white) 0%, var(--primary-white) 100%);
    position: relative;
    overflow: hidden;
}

.hero-ui::after {
    content: '';
    position: absolute;
    bottom: -40%;
    right: -20%;
    width: 80%;
    height: 250%;
    background: radial-gradient(circle, rgba(255, 213, 79, 0.06) 0%, transparent 70%);
    transform: rotate(25deg);
}

.ui-hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 2;
}

.ui-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--light-yellow);
    color: var(--accent-yellow);
    font-size: 14px;
    font-weight: 600;
    border-radius: 30px;
    border: 2px solid var(--accent-yellow);
    margin-bottom: 25px;
}

.ui-title {
    font-size: 52px;
    font-weight: 700;
    color: var(--deep-gray);
    line-height: 1.2;
    margin-bottom: 20px;
}

.ui-subtitle {
    font-size: 20px;
    color: var(--medium-gray);
    max-width: 600px;
    margin-bottom: 40px;
    line-height: 1.6;
}

.ui-process {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin: 60px 0;
    position: relative;
}

.ui-process::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: var(--gradient-line);
    z-index: 0;
}

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

.process-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-white);
    border: 3px solid var(--accent-yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: all 0.4s ease;
}

.process-step:hover .process-icon {
    background: var(--accent-yellow);
    transform: scale(1.1);
}

.process-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 8px;
}

.process-desc {
    font-size: 12px;
    color: var(--medium-gray);
    line-height: 1.5;
}

.pricing-section {
    padding: 100px 0;
    background: var(--secondary-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
    margin-top: 50px;
}

.pricing-card {
    background: var(--primary-white);
    border-radius: 20px;
    padding: 45px 35px;
    text-align: center;
    border: 2px solid var(--border-color);
    box-shadow: 0 5px 25px var(--shadow-light);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 45px var(--shadow-medium);
}

.pricing-card.featured {
    border-color: var(--accent-yellow);
    background: linear-gradient(135deg, var(--light-yellow) 0%, var(--primary-white) 100%);
}

.pricing-card.featured::before {
    content: '推荐';
    position: absolute;
    top: 20px;
    right: -35px;
    background: var(--accent-yellow);
    color: var(--deep-gray);
    font-size: 12px;
    font-weight: 600;
    padding: 5px 40px;
    transform: rotate(45deg);
}

.pricing-icon {
    width: 90px;
    height: 90px;
    background: var(--light-yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 40px;
}

.pricing-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--deep-gray);
    margin-bottom: 10px;
}

.pricing-price {
    font-size: 42px;
    font-weight: 700;
    color: var(--accent-yellow);
    margin-bottom: 30px;
}

.pricing-price small {
    font-size: 16px;
    color: var(--medium-gray);
    font-weight: 400;
}

.pricing-features {
    list-style: none;
    margin-bottom: 35px;
    text-align: left;
}

.pricing-features li {
    font-size: 14px;
    color: var(--medium-gray);
    padding: 10px 0;
    border-bottom: 1px dashed var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features li::before {
    content: '✓';
    color: var(--accent-yellow);
    font-weight: 700;
}

.contact-form-section {
    padding: 100px 0;
}

.contact-form-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 50px;
    background: var(--primary-white);
    border-radius: 20px;
    box-shadow: 0 10px 40px var(--shadow-medium);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 10px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 15px 20px;
    font-size: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    outline: none;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent-yellow);
    box-shadow: 0 0 0 4px rgba(255, 213, 79, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

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

@media (max-width: 992px) {
    .ui-process {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .ui-process::before {
        display: none;
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ui-title {
        font-size: 42px;
    }
}

@media (max-width: 576px) {
    .ui-process {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .ui-title {
        font-size: 32px;
    }
    
    .contact-form-wrapper {
        padding: 30px;
    }
}

/* ========================================
   部署教程页面完整样式
   ======================================== */
.hero-deploy {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, var(--secondary-white) 0%, var(--primary-white) 100%);
    position: relative;
    overflow: hidden;
}

.hero-deploy::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 213, 79, 0.08) 0%, transparent 70%);
    transform: rotate(-15deg);
}

.deploy-hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 2;
}

.deploy-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--light-yellow);
    color: var(--accent-yellow);
    font-size: 14px;
    font-weight: 600;
    border-radius: 30px;
    border: 2px solid var(--accent-yellow);
    margin-bottom: 25px;
}

.deploy-title {
    font-size: 52px;
    font-weight: 700;
    color: var(--deep-gray);
    line-height: 1.2;
    margin-bottom: 20px;
}

.deploy-title .highlight-yellow {
    color: var(--accent-yellow);
}

.deploy-subtitle {
    font-size: 20px;
    color: var(--medium-gray);
    max-width: 600px;
    margin-bottom: 40px;
    line-height: 1.6;
}

.deploy-stats-row {
    display: flex;
    gap: 50px;
    flex-wrap: wrap;
}

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

.deploy-stat .stat-num {
    display: block;
    font-size: 42px;
    font-weight: 700;
    color: var(--accent-yellow);
    line-height: 1;
    margin-bottom: 8px;
}

.deploy-stat .stat-desc {
    font-size: 14px;
    color: var(--medium-gray);
}

.deploy-hero-visual {
    margin-top: 60px;
    padding: 40px;
    background: var(--primary-white);
    border-radius: 16px;
    box-shadow: 0 10px 40px var(--shadow-medium);
}

.pipeline-diagram {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.pipeline-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 20px;
    border-radius: 12px;
    transition: all 0.3s ease;
    min-width: 120px;
}

.pipeline-step.active {
    background: var(--light-yellow);
    transform: scale(1.05);
}

.pipeline-step img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.pipeline-step span {
    font-size: 14px;
    font-weight: 600;
    color: var(--deep-gray);
}

.pipeline-arrow {
    font-size: 32px;
    color: var(--accent-yellow);
    font-weight: 700;
}

.deploy-tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.deploy-tool-card {
    background: var(--primary-white);
    border-radius: 16px;
    padding: 35px;
    border: 1px solid var(--border-color);
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.deploy-tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--accent-yellow);
    transition: height 0.4s ease;
}

.deploy-tool-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px var(--shadow-medium);
}

.deploy-tool-card:hover::before {
    height: 100%;
}

.deploy-tool-card.featured {
    background: linear-gradient(135deg, var(--light-yellow) 0%, var(--primary-white) 100%);
    border-color: var(--accent-yellow);
}

.featured-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-yellow);
    color: var(--deep-gray);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
}

.tool-icon-bg {
    width: 80px;
    height: 80px;
    background: var(--light-yellow);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.tool-icon-bg img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.tool-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 15px;
}

.tool-desc {
    font-size: 15px;
    color: var(--medium-gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.tool-features {
    list-style: none;
    margin-bottom: 25px;
}

.tool-features li {
    font-size: 14px;
    color: var(--medium-gray);
    padding: 8px 0;
    border-bottom: 1px dashed var(--border-color);
}

.tool-features li:last-child {
    border-bottom: none;
}

.btn-outline {
    display: inline-block;
    padding: 12px 30px;
    border: 2px solid var(--deep-gray);
    color: var(--deep-gray);
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: var(--deep-gray);
    color: var(--primary-white);
}

.btn-primary {
    display: inline-block;
    padding: 12px 30px;
    background: var(--accent-yellow);
    color: var(--deep-gray);
    border-radius: 8px;
    font-weight: 600;
    border: 2px solid var(--accent-yellow);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent-yellow);
}

.section-dark {
    background: var(--deep-gray);
    color: var(--primary-white);
}

.steps-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.steps-content .section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 213, 79, 0.15);
    color: var(--accent-yellow);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 20px;
}

.steps-content .section-title {
    font-size: 38px;
    font-weight: 700;
    margin-bottom: 15px;
}

.text-white {
    color: var(--primary-white) !important;
}

.text-gray {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 40px;
}

.step-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.step-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--accent-yellow);
    color: var(--deep-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
}

.step-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-white);
    margin-bottom: 8px;
}

.step-info p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.steps-visual .terminal-window {
    background: #1e1e1e;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.terminal-header {
    background: #2d2d2d;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27ca40; }

.terminal-title {
    margin-left: 20px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.terminal-body {
    padding: 25px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.8;
}

.terminal-body .cmd {
    color: #5fd7ff;
}

.terminal-body .output {
    color: rgba(255, 255, 255, 0.7);
}

.terminal-body .output.success {
    color: #27ca40;
}

.resources-section {
    text-align: center;
}

.resource-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.resource-card {
    background: var(--secondary-white);
    padding: 35px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-medium);
}

.resource-card img {
    width: 50px;
    height: 50px;
    margin: 0 auto 20px;
}

.resource-card h4 {
    font-size: 18px;
    color: var(--deep-gray);
    margin-bottom: 10px;
}

.resource-card p {
    font-size: 14px;
    color: var(--medium-gray);
    margin-bottom: 20px;
}

.btn-link {
    color: var(--accent-yellow);
    font-weight: 600;
    font-size: 14px;
}

/* 部署教程响应式 */
@media (max-width: 992px) {
    .deploy-tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .steps-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .resource-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .deploy-title {
        font-size: 42px;
    }
}

@media (max-width: 576px) {
    .deploy-tools-grid {
        grid-template-columns: 1fr;
    }
    
    .resource-cards {
        grid-template-columns: 1fr;
    }
    
    .deploy-title {
        font-size: 32px;
    }
    
    .pipeline-diagram {
        justify-content: center;
    }
    
    .deploy-stats-row {
        gap: 30px;
    }
}

/* ========================================
   项目案例页面完整样式
   ======================================== */
.hero-projects {
    padding: 200px 0 120px;
    background: linear-gradient(135deg, #1a1a2e 0%, #2d2d44 100%);
    position: relative;
    overflow: hidden;
}

.hero-projects::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 60%;
    height: 150%;
    background: radial-gradient(circle, rgba(255, 213, 79, 0.1) 0%, transparent 70%);
    transform: rotate(15deg);
}

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

.project-hero-text {
    padding-right: 40px;
}

.hero-label {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 213, 79, 0.15);
    color: var(--accent-yellow);
    font-size: 14px;
    font-weight: 600;
    border-radius: 30px;
    margin-bottom: 25px;
}

.hero-main-title {
    font-size: 54px;
    font-weight: 700;
    color: var(--primary-white);
    line-height: 1.2;
    margin-bottom: 20px;
}

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

.hero-description {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 35px;
    max-width: 500px;
}

.hero-cta-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-lg {
    padding: 15px 35px;
    font-size: 16px;
}

.project-hero-cards {
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: float 4s ease-in-out infinite;
}

.floating-card img {
    width: 200px;
    height: 140px;
    object-fit: cover;
    border-radius: 8px;
}

.floating-card span {
    color: var(--primary-white);
    font-weight: 600;
}

.card-1 {
    top: 0;
    right: 0;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: -30px;
    transform: translate(0, -50%);
    animation-delay: 1s;
}

.card-3 {
    bottom: 0;
    right: 20px;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.section-category {
    padding: 40px 0;
    background: var(--secondary-white);
    border-bottom: 1px solid var(--border-color);
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 28px;
    background: var(--primary-white);
    border: 2px solid var(--border-color);
    border-radius: 30px;
    font-size: 15px;
    font-weight: 600;
    color: var(--medium-gray);
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover,
.tab-btn.active {
    background: var(--accent-yellow);
    border-color: var(--accent-yellow);
    color: var(--deep-gray);
}

.project-showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.project-card {
    background: var(--primary-white);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: all 0.4s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px var(--shadow-medium);
}

.project-card.featured {
    grid-column: span 2;
}

.project-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--accent-yellow);
    color: var(--deep-gray);
    font-size: 12px;
    font-weight: 600;
    padding: 5px 15px;
    border-radius: 20px;
    z-index: 10;
}

.project-image {
    position: relative;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.08);
}

.project-tech-tags {
    position: absolute;
    bottom: 15px;
    left: 15px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.project-tech-tags span {
    background: rgba(0, 0, 0, 0.75);
    color: var(--primary-white);
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 15px;
}

.project-content {
    padding: 25px;
}

.project-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 12px;
}

.project-desc {
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.7;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.meta-item {
    font-size: 13px;
    color: var(--medium-gray);
    display: flex;
    align-items: center;
    gap: 5px;
}

.project-actions {
    display: flex;
    gap: 15px;
}

.btn-link {
    color: var(--accent-yellow);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
}

.learning-path-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.path-content .section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--light-yellow);
    color: var(--accent-yellow);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 20px;
}

.path-steps {
    margin-top: 40px;
}

.path-step {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    padding: 20px;
    background: var(--secondary-white);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.path-step:hover {
    background: var(--light-yellow);
    transform: translateX(10px);
}

.step-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.step-detail h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 5px;
}

.step-detail p {
    font-size: 14px;
    color: var(--medium-gray);
}

.progress-circle {
    width: 200px;
    height: 200px;
    margin: 0 auto;
}

.progress-circle svg {
    transform: rotate(-90deg);
    width: 100%;
    height: 100%;
}

.progress-bg {
    fill: none;
    stroke: var(--border-color);
    stroke-width: 8;
}

.progress-bar {
    fill: none;
    stroke: var(--accent-yellow);
    stroke-width: 8;
    stroke-dasharray: 326;
    stroke-dashoffset: 82;
    stroke-linecap: round;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.percent {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-yellow);
}

.label {
    font-size: 14px;
    color: var(--medium-gray);
}

/* 项目案例响应式 */
@media (max-width: 992px) {
    .project-hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .project-hero-text {
        padding-right: 0;
        text-align: center;
    }
    
    .hero-description {
        margin: 0 auto 35px;
    }
    
    .hero-cta-group {
        justify-content: center;
    }
    
    .project-hero-cards {
        display: none;
    }
    
    .project-showcase-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .project-card.featured {
        grid-column: span 1;
    }
    
    .learning-path-section {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 576px) {
    .hero-main-title {
        font-size: 36px;
    }
    
    .category-tabs {
        gap: 10px;
    }
    
    .tab-btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .project-showcase-grid {
        grid-template-columns: 1fr;
    }
    
    .project-actions {
        flex-direction: column;
    }
}

/* ========================================
   问答专区页面完整样式
   ======================================== */
.hero-qa {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, var(--primary-white) 0%, var(--light-yellow) 100%);
    position: relative;
    overflow: hidden;
}

.hero-qa::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffd54f' fill-opacity='0.08'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.qa-hero-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 40px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.qa-hero-content .hero-label {
    margin-bottom: 25px;
}

.qa-hero-content .hero-main-title {
    font-size: 48px;
    color: var(--deep-gray);
    margin-bottom: 20px;
}

.qa-hero-content .hero-description {
    font-size: 18px;
    color: var(--medium-gray);
    margin: 0 auto 40px;
    max-width: 600px;
}

.qa-search-box {
    background: var(--primary-white);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 10px 40px var(--shadow-medium);
}

.search-input-group {
    display: flex;
    gap: 15px;
}

.search-input-group input {
    flex: 1;
    padding: 15px 25px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    outline: none;
    transition: all 0.3s ease;
}

.search-input-group input:focus {
    border-color: var(--accent-yellow);
}

.search-input-group button {
    padding: 15px 35px;
    background: var(--accent-yellow);
    color: var(--deep-gray);
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-input-group button:hover {
    background: var(--deep-gray);
    color: var(--primary-white);
}

.qa-stats-bar {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 50px;
    flex-wrap: wrap;
}

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

.qa-stat-number {
    display: block;
    font-size: 42px;
    font-weight: 700;
    color: var(--accent-yellow);
    line-height: 1;
    margin-bottom: 8px;
}

.qa-stat-label {
    font-size: 14px;
    color: var(--medium-gray);
}

.qa-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 50px;
}

.qa-category-card {
    background: var(--primary-white);
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.qa-category-card:hover {
    border-color: var(--accent-yellow);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-light);
}

.qa-category-icon {
    width: 60px;
    height: 60px;
    background: var(--light-yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 28px;
}

.qa-category-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 8px;
}

.qa-category-count {
    font-size: 13px;
    color: var(--medium-gray);
}

.qa-list-section {
    margin-top: 60px;
}

.qa-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.qa-list-header h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--deep-gray);
}

.qa-filter-group {
    display: flex;
    gap: 10px;
}

.filter-btn {
    padding: 8px 20px;
    background: var(--secondary-white);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 14px;
    color: var(--medium-gray);
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-yellow);
    border-color: var(--accent-yellow);
    color: var(--deep-gray);
}

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

.qa-question-card {
    background: var(--primary-white);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.qa-question-card:hover {
    border-color: var(--accent-yellow);
    box-shadow: 0 5px 20px var(--shadow-light);
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.question-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--deep-gray);
    flex: 1;
    cursor: pointer;
    transition: color 0.3s ease;
}

.question-title:hover {
    color: var(--accent-yellow);
}

.question-status {
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-solved {
    background: rgba(39, 202, 64, 0.15);
    color: #27ca40;
}

.status-pending {
    background: rgba(255, 189, 46, 0.15);
    color: #ffbd2e;
}

.question-meta {
    display: flex;
    gap: 25px;
    font-size: 13px;
    color: var(--medium-gray);
}

.question-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.question-excerpt {
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.7;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px dashed var(--border-color);
}

/* 问答专区响应式 */
@media (max-width: 992px) {
    .qa-categories {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .search-input-group {
        flex-direction: column;
    }
    
    .qa-stats-bar {
        gap: 40px;
    }
}

@media (max-width: 576px) {
    .qa-hero-content .hero-main-title {
        font-size: 32px;
    }
    
    .qa-categories {
        grid-template-columns: 1fr;
    }
    
    .qa-list-header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
    
    .question-header {
        flex-direction: column;
        gap: 10px;
    }
    
    .question-meta {
        flex-wrap: wrap;
        gap: 15px;
    }
}

/* ========================================
   全栈知识页面完整样式
   ======================================== */
    padding: 180px 0 100px;
    background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 100%);
    position: relative;
    overflow: hidden;
}

    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 213, 79, 0.12) 0%, transparent 70%);
}

    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 2;
}

    margin-bottom: 25px;
}

    font-size: 50px;
    color: var(--primary-white);
    margin-bottom: 20px;
}

    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0 0 40px;
    max-width: 650px;
}

.tech-stack-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-top: 60px;
}

.tech-layer {
    text-align: center;
    padding: 25px 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.tech-layer:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.tech-layer-icon {
    font-size: 36px;
    margin-bottom: 15px;
}

.tech-layer-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-white);
    margin-bottom: 10px;
}

.tech-layer-items {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
}

.knowledge-map-section {
    padding: 100px 0;
    background: var(--secondary-white);
}

.map-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.map-content .section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--light-yellow);
    color: var(--accent-yellow);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 20px;
}

.map-skills {
    margin-top: 40px;
}

.skill-item {
    margin-bottom: 25px;
}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.skill-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--deep-gray);
}

.skill-percent {
    font-size: 14px;
    color: var(--accent-yellow);
    font-weight: 600;
}

.skill-bar {
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-yellow) 0%, #ffb300 100%);
    border-radius: 4px;
    transition: width 1s ease;
}

.map-visual {
    position: relative;
}

.stack-layers {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.stack-layer-card {
    background: var(--primary-white);
    padding: 20px 25px;
    border-radius: 12px;
    border-left: 4px solid var(--accent-yellow);
    box-shadow: 0 5px 15px var(--shadow-light);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
}

.stack-layer-card:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 25px var(--shadow-medium);
}

.layer-icon {
    width: 50px;
    height: 50px;
    background: var(--light-yellow);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.layer-info h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 5px;
}

.layer-info p {
    font-size: 13px;
    color: var(--medium-gray);
}

.roadmap-section {
    padding: 100px 0;
}

.roadmap-timeline {
    position: relative;
    max-width: 900px;
    margin: 50px auto 0;
    padding-left: 30px;
}

.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-yellow) 0%, var(--border-color) 100%);
}

.roadmap-item {
    position: relative;
    padding-left: 40px;
    margin-bottom: 40px;
}

.roadmap-item::before {
    content: '';
    position: absolute;
    left: -30px;
    top: 5px;
    width: 14px;
    height: 14px;
    background: var(--accent-yellow);
    border-radius: 50%;
    border: 3px solid var(--primary-white);
    box-shadow: 0 0 0 3px var(--accent-yellow);
}

.roadmap-month {
    display: inline-block;
    padding: 5px 15px;
    background: var(--accent-yellow);
    color: var(--deep-gray);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 12px;
}

.roadmap-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 10px;
}

.roadmap-desc {
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.7;
}

/* 全栈知识响应式 */
@media (max-width: 992px) {
    .tech-stack-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .map-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
        font-size: 40px;
    }
}

@media (max-width: 576px) {
    .tech-stack-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
        font-size: 32px;
    }
    
    .roadmap-timeline {
        padding-left: 20px;
    }
    
    .roadmap-item::before {
        left: -20px;
        width: 10px;
        height: 10px;
    }
    
    .roadmap-item {
        padding-left: 30px;
    }
}

/* ========================================
   界面定制页面完整样式
   ======================================== */
    padding: 180px 0 100px;
    background: linear-gradient(135deg, var(--secondary-white) 0%, var(--primary-white) 100%);
    position: relative;
    overflow: hidden;
}

    content: '';
    position: absolute;
    bottom: -40%;
    right: -20%;
    width: 70%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 213, 79, 0.1) 0%, transparent 70%);
    transform: rotate(-20deg);
}

    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.ui-hero-text .hero-label {
    margin-bottom: 25px;
}

.ui-hero-text .hero-main-title {
    font-size: 48px;
    color: var(--deep-gray);
    margin-bottom: 20px;
}

.ui-hero-text .hero-description {
    font-size: 18px;
    color: var(--medium-gray);
    margin-bottom: 35px;
    line-height: 1.7;
}

.ui-hero-visual {
    position: relative;
}

.design-showcase {
    background: var(--primary-white);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 60px var(--shadow-medium);
    position: relative;
}

.showcase-mockup {
    background: linear-gradient(135deg, var(--light-yellow) 0%, var(--primary-white) 100%);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
}

.mockup-screen {
    height: 200px;
    background: var(--primary-white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: 0 5px 20px var(--shadow-light);
}

.mockup-screen img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}

.ui-process-section {
    padding: 100px 0;
    background: var(--secondary-white);
}

.process-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.process-content .section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--light-yellow);
    color: var(--accent-yellow);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 20px;
}

.ui-process {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
    margin-top: 40px;
    position: relative;
}

.ui-process::before {
    content: '';
    position: absolute;
    top: 25px;
    left: 50px;
    right: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-yellow), var(--border-color));
    z-index: 1;
}

.process-step-card {
    position: relative;
    z-index: 2;
    text-align: center;
}

.process-step-num {
    width: 50px;
    height: 50px;
    background: var(--accent-yellow);
    color: var(--deep-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    margin: 0 auto 15px;
    border: 4px solid var(--secondary-white);
}

.process-step-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 8px;
}

.process-step-desc {
    font-size: 12px;
    color: var(--medium-gray);
    line-height: 1.5;
}

.pricing-section {
    padding: 100px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.pricing-card {
    background: var(--primary-white);
    border-radius: 16px;
    padding: 40px 30px;
    border: 2px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    border-color: var(--accent-yellow);
    transform: translateY(-8px);
    box-shadow: 0 15px 40px var(--shadow-medium);
}

.pricing-card.popular {
    border-color: var(--accent-yellow);
    background: linear-gradient(135deg, var(--light-yellow) 0%, var(--primary-white) 100%);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-yellow);
    color: var(--deep-gray);
    font-size: 12px;
    font-weight: 600;
    padding: 5px 20px;
    border-radius: 20px;
}

.pricing-icon {
    width: 70px;
    height: 70px;
    background: var(--light-yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
}

.pricing-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 10px;
}

.pricing-price {
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-yellow);
    margin-bottom: 25px;
}

.pricing-price small {
    font-size: 14px;
    color: var(--medium-gray);
    font-weight: 400;
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--border-color);
    font-size: 14px;
    color: var(--medium-gray);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li::before {
    content: '✓';
    color: var(--accent-yellow);
    font-weight: 700;
    margin-right: 10px;
}

.contact-form-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background: var(--primary-white);
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 10px 40px var(--shadow-medium);
}

.form-section-title {
    font-size: 26px;
    font-weight: 600;
    color: var(--deep-gray);
    text-align: center;
    margin-bottom: 15px;
}

.form-section-subtitle {
    font-size: 15px;
    color: var(--medium-gray);
    text-align: center;
    margin-bottom: 40px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--deep-gray);
    margin-bottom: 10px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 15px 20px;
    font-size: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    outline: none;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent-yellow);
    box-shadow: 0 0 0 4px rgba(255, 213, 79, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

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

/* 界面定制响应式 */
@media (max-width: 992px) {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .ui-hero-text {
        text-align: center;
    }
    
    .ui-hero-text .hero-description {
        margin: 0 auto 35px;
    }
    
    .process-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .ui-process {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .ui-process::before {
        display: none;
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ui-hero-text .hero-main-title {
        font-size: 40px;
    }
}

@media (max-width: 576px) {
        padding: 0 20px;
    }
    
    .ui-hero-text .hero-main-title {
        font-size: 32px;
    }
    
    .ui-process {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 30px;
    }
}