/* 基础变量 */
:root {
    --teal: #00a8a8;
    --teal-dark: #008f8f;
    --purple: #6b5b95;
    --purple-dark: #5a4a7d;
    --orange: #e67e22;
    --dark-bg: #2c3e50;
    --text-dark: #333;
    --text-muted: #666;
    --white: #fff;
    --shadow: 0 4px 15px rgba(0,0,0,0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 顶部条 */
.top-bar {
    height: 8px;
    background: var(--dark-bg);
}

/* 导航栏 */
.header {
    background: var(--dark-bg);
    
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.header-logo {
    flex-shrink: 0;
}

.header-logo-img {
    height: 85px;
    display: block;
	padding-right: 20px;
    
}

.nav {
    display: flex;
    align-items: center;
    gap: 24px;
    flex: 1;
}

.nav-tabs {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-tabs a {
    color: var(--white);
    text-decoration: none;
    padding: 8px 20px;
    border-radius: 4px;
    transition: background 0.3s;
}

.nav-tabs a:hover,
.nav-tabs a.active {
    background: rgba(255,255,255,0.2);
}

.search-box {
    display: flex;
    align-items: center;
    position: relative;
    margin-left: auto;
    border-radius: 50px;
    background: var(--white);
    overflow: hidden;
}

.search-input {
    padding: 10px 44px 10px 20px;
    border: none;
    background: transparent;
    width: 180px;
    font-size: 14px;
}

.search-input::placeholder {
    color: #999;
}

.search-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    color: var(--dark-bg);
    border: none;
    padding: 0;
    cursor: pointer;
    font-size: 14px;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
}

/* 锚点区块 */
main section {
    scroll-margin-top: 70px;
}

#project {
    padding-top: 24px;
}

/* Hero 区域 */
.hero-section {
    position: relative;
}

.hero-form-below {
    display: none;
}

.hero {
    position: relative;
    min-height: 520px;
    background: url('img/ckt.png') center/cover no-repeat;
    background-size: cover;
    display: flex;
    align-items: center;
    padding: 60px 20px;
}

.hero-logo {
    display: block;
   
    max-height: 90px;
    max-width: 180px;
	
	
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.2);
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 40px;
    width: 100%;
    position: relative;
    z-index: 1;
}

/* 说明区域 - PC端：左侧，底部距背景图50px */
.hero-desc-area {
    position: absolute;
    left: 20px;
    bottom: 50px;
    text-align: left;
    background: rgba(255,255,255,0.55);
    z-index: 2;
    padding: 12px 20px;
    border-radius: 8px;
}

.hero-title {
    font-size: 2.5rem;
    color: #0ec1b1;
    margin-bottom: 16px;
    padding: 8px 16px;    
    display: inline-block;
    border-radius: 4px;
    -webkit-text-stroke: 1px white;
    text-stroke: 1px white;
    text-shadow: 2px 2px 6px rgba(0,0,0,0.3), 0 0 10px rgba(0,0,0,0.2);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: #516369;
    padding: 0 0 20px 0;
}

/* 表单卡片 */
.hero-form-card {
    background: var(--white);
    padding: 32px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    width: 480px;
    flex-shrink: 0;
}

.form-card-inner {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.form-qrcode-area {
    flex-shrink: 0;
    text-align: center;
}

.form-qrcode-wrap {
    position: relative;
    display: inline-block;
    overflow: hidden;
    border-radius: 8px;
}

.form-qrcode-placeholder {
    width: 120px;
    height: 120px;
    background: url('img/qrcode.jpg') center/contain no-repeat;
    background-color: var(--white);
    border: 1px solid #eee;
    border-radius: 8px;
}

.form-qrcode-scan-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(0,168,168,0.8), transparent);
    border-radius: 2px;
    animation: qrcode-scan 2s ease-in-out infinite;
}

@keyframes qrcode-scan {
    0%, 100% { top: 0; }
    50% { top: calc(100% - 3px); }
}

.form-qrcode-caption {
    margin-top: 2px;
    font-size: 11px;
    color: #999;
    letter-spacing: 0.3px;
    line-height: 1.2;
}

.form-card-inner .join-form {
    flex: 1;
    min-width: 0;
}

.form-title {
    font-size: 1.6rem;
    color: #8930fc;
    margin-bottom: 24px;
	text-align: center;
}

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

.join-form label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-dark);
}

.required {
    color: #e74c3c;
}

.join-form input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
}

.join-form input:focus {
    outline: none;
    border-color: var(--teal);
}

.submit-btn {
    width: 100%;
    padding: 14px;
    background: #8c2ffc;
    color: var(--white);
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

.submit-btn:hover {
    background: var(--purple-dark);
}

/* 功能卡片 */
.cards-section {
    max-width: 1200px;
    margin: 48px auto 60px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    position: relative;
    z-index: 2;
}

.card {
    padding: 32px 24px;
    border-radius: 12px;
    color: var(--white);
    text-align: center;
    box-shadow: var(--shadow);
}

.card.purple {
    background: #8c2ffc;
}

.card.orange {
    background:#ff7000;
}

.card h4 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.card-subtitle {
    font-size: 0.95rem;
    margin-bottom: 8px;
    opacity: 0.95;
}

.card-desc {
    font-size: 0.9rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.card-btn {
    display: inline-block;
    padding: 10px 24px;
    background: rgba(255,255,255,0.8);
    color: #8c2ffc;
    text-decoration: none;
    border-radius: 6px;
    font-size: 14px;
    transition: background 0.3s;	
	
}

.card-btn:hover {
    background: rgba(255,255,255,0.5);
}

/* 通用区块 */
.section {
    max-width: 1200px;
    margin: 0 auto 80px;
    padding: 0 20px;
}

.section-title {
    font-size: 1.75rem;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 48px;
}

/* 项目介绍 */
.project-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: stretch;
}

.project-image {
    min-height: 0;
}

.project-img-placeholder {
    width: 100%;
    height: 100%;
    min-height: 280px;
    background: url('img/logo%204.png') center/cover no-repeat;
    border-radius: 12px;
}

.project-img-placeholder span {
    display: none;
}

.project-text .sub-title {
    color: var(--teal);
    font-size: 1.2rem;
    margin-bottom: 16px;
}

.project-text p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.project-text .join-form {
    max-width: 100%;
}

/* 站点案例 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.case-box {
    aspect-ratio: 4/3;
    background: var(--white) center/cover no-repeat;
    border: 2px solid var(--teal);
    border-radius: 8px;
}

.case-1 { background-image: url('img/show1.jpeg'); }
.case-2 { background-image: url('img/show2.jpeg'); }
.case-3 { background-image: url('img/show3.jpeg'); }
.case-4 { background-image: url('img/show4.jpeg.png'); }
.case-5 { background-image: url('img/show5.jpeg'); }
.case-6 { background-image: url('img/show6.jpeg'); }
.case-7 { background-image: url('img/show8.jpeg'); }
.case-8 { background-image: url('img/show9.jpeg'); }

/* 合伙人招募 */
.partner-content {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.partner-content p {
    margin-bottom: 32px;
    color: var(--text-muted);
}

.partner-form-wrap {
    margin: 0 auto;
}

/* 关于我们 */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-text p {
    color: var(--text-muted);
    line-height: 1.85;
}
.about_img{
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 8px;
}
.about_img img{
	width: calc(33.33% - 6px);
	max-width: 175px;
	height: auto;
	padding-top: 68px;
	
	
	
	
	
	
	
}

.about-img-placeholder {
    width: 100%;
    aspect-ratio: 16/10;
    background: url('img/kzt.png') center/cover no-repeat;
    border-radius: 12px;
}

.about-img-placeholder span {
    display: none;
}

/* 页脚 */
.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 48px 20px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 32px;
}

.footer-brand .logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--teal);
}

.footer-tagline {
    display: block;
    color: var(--teal);
    font-size: 0.95rem;
    margin-top: 4px;
}

.footer-contact,
.footer-address {
    margin: 16px 18px;
    font-size: 14px;
    color: rgba(255,255,255,0.9);
}

.qrcode-title {
    font-size: 1rem;
    margin-bottom: 12px;
	text-align: center;
}

.qrcode-placeholder {
    width: 120px;
    height: 120px;
    background: url('img/ewm.png') center/contain no-repeat;
    background-color: var(--white);
    border-radius: 8px;
}

.qrcode-caption {
    margin-top: 8px;
    font-size: 12px;
    color: rgba(255,255,255,0.8);
	text-align: center;
}

/* 合作加盟 - 平板及以下使用上下布局 */
@media (max-width: 992px) {
    .form-card-inner {
        flex-direction: column;
        align-items: center;
    }

    .form-qrcode-area {
        order: 1;
    }

    .form-card-inner .join-form {
        order: 2;
        width: 100%;
    }
}

/* iPad 横屏 (1024px) */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2rem;
    }

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

    .project-grid,
    .about-grid {
        gap: 32px;
    }

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

/* iPad 竖屏 / 小平板 (768px) */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        background: #3dafb6;
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s;
    }

    .nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-tabs {
        flex-direction: column;
        width: 100%;
    }

    .nav-tabs a {
        display: block;
        text-align: center;
    }
	

    .search-box {
        width: 100%;
    }

    .search-input {
        flex: 1;
        width: 100%;
    }

    .hero-form-inline {
        display: none;
    }

    .hero-form-below {
        display: block;
        padding: 24px 20px;
        max-width: 480px;
        margin: 0 auto;
    }

    .hero-form-below .hero-form-card {
        width: 100%;
    }

    .hero {
        min-height: 33.33vh;
    }

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

    .hero-desc-area {
        text-align: center;
        left: 20px;
        right: 20px;
        width: auto;
        top: 45%;
        transform: translateY(-50%);
        bottom: auto;
    }

    .hero-title {
        font-size: 1.75rem;
    }

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

    .form-card-inner {
        flex-direction: column;
        align-items: center;
    }

    .form-qrcode-area {
        order: 1;
    }

    .form-card-inner .join-form {
        order: 2;
        width: 100%;
    }

    .cards-section {
        grid-template-columns: 1fr;
        margin-top: 40px;
    }

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

    .about_img img {
        width: calc(33.33% - 6px);
        max-width: 100%;
        padding-top: 16px;
    }

    .project-image {
        order: 1;
    }

    .project-text {
        order: 2;
    }

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

    .case-7,
    .case-8 {
        display: none;
    }

    .footer-container {
        flex-direction: column;
        flex-wrap: nowrap;
        align-items: center;
        text-align: center;
        gap: 32px;
    }

    .footer-left {
        order: 1;
        width: 100%;
    }

    .footer-right {
        order: 2;
        margin: 0 auto;
    }

    .footer-contact,
    .footer-address {
        margin: 8px 0;
    }

    .qrcode-placeholder {
        margin: 0 auto;
    }
}

/* 手机 (480px) */
@media (max-width: 480px) {
    .footer {
        padding: 32px 16px;
    }

    .hero {
        min-height: 33.33vh;
        padding: 40px 16px;
    }

    .hero-form-card {
        padding: 24px 16px;
    }

    .form-card-inner {
        gap: 20px;
    }

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

    .hero-subtitle {
        font-size: 0.95rem;
    }

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

    .card {
        padding: 24px 16px;
    }

    .section {
        padding: 0 16px;
    }
}