/* ===== 全局重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', sans-serif;
    background-color: #0a0e1a;
    color: #e0e6f0;
    line-height: 1.6;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
.container { max-width: 1360px; margin: 0 auto; padding: 0 24px; }

/* ===== 导航栏 ===== */
header {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 999;
    background: rgba(10, 14, 26, 0.93);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
nav {
    display: flex; align-items: center; justify-content: space-between;
    height: 72px; padding: 0 32px; max-width: 1620px; margin: 0 auto;
}
.logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 24px; font-weight: 700;
    background: linear-gradient(135deg, #6c5ce7, #0984e3);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.logo i { font-size: 28px; -webkit-text-fill-color: #6c5ce7; }
.nav-links { display: flex; list-style: none; gap: 30px; font-size: 15px; font-weight: 500; }
.nav-links li {
    cursor: pointer; position: relative; padding: 6px 0; transition: color 0.3s;
}
.nav-links li:hover { color: #6c5ce7; }
.nav-links li::after {
    content: ''; position: absolute; bottom: -2px; left: 0;
    width: 0; height: 2px;
    background: linear-gradient(90deg, #6c5ce7, #0984e3);
    transition: width 0.3s;
}
.nav-links li:hover::after, .nav-links li.active::after { width: 100%; }
.nav-links li.active { color: #6c5ce7; }
.nav-right { display: flex; align-items: center; gap: 16px; }
.btn-primary {
    background: linear-gradient(135deg, #6c5ce7, #0984e3);
    border: none; padding: 10px 24px; border-radius: 30px; color: #fff;
    font-weight: 600; font-size: 14px; cursor: pointer;
    transition: transform 0.2s, box-shadow 0.3s;
    box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
}
.btn-primary:hover { transform: scale(1.04); box-shadow: 0 6px 28px rgba(108, 92, 231, 0.5); }
.btn-outline {
    background: transparent; border: 2px solid rgba(108, 92, 231, 0.5);
    padding: 10px 24px; border-radius: 30px; color: #c8d0e0;
    font-weight: 600; cursor: pointer; transition: all 0.3s;
}
.btn-outline:hover { border-color: #6c5ce7; background: rgba(108, 92, 231, 0.1); }

/* ===== 页面容器 ===== */
.page { display: none; min-height: calc(100vh - 230px); padding-top: 96px; animation: fadeIn 0.5s ease; }
.page.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* ===== 首页 ===== */
#home { padding-top: 198px; }
#home .hero { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 50px; padding-bottom: 55px; }
#home .hero-left { flex: 1 1 488px; }
#home .hero-left h1 {
    font-size: 44px; font-weight: 800; line-height: 1.2; margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff, #a29bfe);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
#home .hero-left p { font-size: 17px; color: #a0a8c0; margin-bottom: 32px; max-width: 590px; }
#home .hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
#home .hero-right { flex: 1 1 428px; display: flex; justify-content: center; align-items: center; position: relative; }
#home .cycle-flow { position: relative; width: 396px; height: 492px; display: flex; align-items: center; justify-content: center; }
#home .flow-node {
    position: absolute; width: 158px; height: 187px;
    background: rgba(108, 92, 231, 0.065);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    border: 1px solid rgba(108, 92, 231, 0.18); transition: all 0.3s; cursor: default; z-index: 2;
}
#home .flow-node:hover { background: rgba(108, 92, 231, 0.16); border-color: #6c5ce7; transform: scale(1.06); }
#home .flow-node i { font-size: 42px; color: #6c5ce7; margin-bottom: 6px; }
#home .flow-node span { font-size: 14px; font-weight: 600; color: #c8d0e0; }
#home .node-top { top: 0; left: 52%; transform: translateX(-51%); }
#home .node-top2 { left: 0; top: 15%; transform: translateY(-51%); }
#home .node-right { right: 0; top: 54%; transform: translateY(-53%); }
#home .node-bottom { bottom: 0; left: 49%; transform: translateX(-47%); }
#home .node-left { left: 0; top: 46%; transform: translateY(-43%); }
#home .center-ring {
    position: absolute; width: 128px; height: 149px;
    background: linear-gradient(135deg, #6c5ce7, #0984e3);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: 16px;
    box-shadow: 0 0 48px rgba(108, 92, 231, 0.32); z-index: 3;
}
#home .center-ring small { font-size: 11px; font-weight: 400; opacity: 0.91; }
#home .arc-lines { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 1; }
#home .arc-lines::before {
    content: ''; position: absolute; top: 50%; left: 50%;
    width: 362px; height: 462px;
    border: 2px dashed rgba(108, 92, 231, 0.14); border-radius: 50%;
    transform: translate(-50%, -50%); animation: spin 18s linear infinite;
}
#home .arc-lines::after {
    content: '\f021'; font-family: 'Font Awesome 6 Free'; font-weight: 900;
    position: absolute; top: 62%; left: 62%; font-size: 18px;
    color: #6c5ce7; opacity: 0.24; animation: spin 5s linear infinite reverse;
}
@keyframes spin { 0% { transform: translate(-50%, -50%) rotate(0deg); } 100% { transform: translate(-50%, -50%) rotate(360deg); } }

.section-title { text-align: center; font-size: 31px; font-weight: 700; margin-bottom: 10px; }
.section-subtitle { text-align: center; color: #8890a8; margin-bottom: 44px; font-size: 16px; }

#home .features-section { padding: 55px 0 35px; }
#home .feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(222px, 1fr)); gap: 28px; }
#home .feature-card {
    background: rgba(255, 255, 255, 0.029); border: 1px solid rgba(255, 255, 255, 0.059);
    border-radius: 20px; padding: 32px 22px; text-align: center;
    transition: all 0.4s; backdrop-filter: blur(4px);
}
#home .feature-card:hover { border-color: rgba(108, 92, 231, 0.32); transform: translateY(-6px); box-shadow: 0 12px 40px rgba(108, 92, 231, 0.10); }
#home .feature-card i { font-size: 44px; color: #6c5ce7; margin-bottom: 16px; }
#home .feature-card h3 { font-size: 19px; margin-bottom: 10px; }
#home .feature-card p { color: #8890a8; font-size: 14px; }

#home .scenes-section { padding: 35px 0; }
#home .scene-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(183px, 1fr)); gap: 22px; }
#home .scene-card {
    background: rgba(255, 255, 255, 0.018); border: 1px solid rgba(255, 255, 255, 0.049);
    border-radius: 16px; padding: 27px 14px; text-align: center; transition: all 0.3s;
}
#home .scene-card:hover { border-color: #6c5ce7; transform: translateY(-4px); }
#home .scene-card i { font-size: 34px; color: #0984e3; margin-bottom: 12px; }
#home .scene-card h4 { font-size: 17px; margin-bottom: 8px; }
#home .scene-card p { color: #8890a8; font-size: 13px; }

#home .cta-box {
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.096), rgba(9, 132, 227, 0.069));
    border-radius: 28px; padding: 55px 38px; text-align: center;
    border: 1px solid rgba(108, 92, 231, 0.10); margin: 35px 0 65px;
}
#home .cta-box h2 { font-size: 30px; margin-bottom: 12px; }
#home .cta-box p { color: #8890a8; margin-bottom: 26px; font-size: 16px; }
#home .qr-placeholder { display: inline-block; background: #fff; padding: 10px; border-radius: 14px; margin-bottom: 18px; }
#home .qr-placeholder i { font-size: 81px; color: #000; }
#home .cta-buttons { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-top: 8px; }

/* ===== 产品中心 ===== */
#product { padding-top: 139px; }
#product .product-intro { text-align: center; margin-bottom: 45px; }
#product .product-intro h2 { font-size: 34px; font-weight: 700; margin-bottom: 10px; }
#product .product-intro p { color: #8890a8; font-size: 16px; max-width: 880px; margin: 0 auto; }
#product .module-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(261px, 1fr)); gap: 28px; margin-bottom: 55px; }
#product .module-card {
    background: rgba(255, 255, 255, 0.033); border: 1px solid rgba(255, 255, 255, 0.055);
    border-radius: 18px; padding: 28px; transition: 0.3s;
}
#product .module-card:hover { border-color: #6c5ce7; transform: translateY(-4px); }
#product .module-card h3 { font-size: 21px; margin-bottom: 14px; display: flex; align-items: center; gap: 12px; }
#product .module-card h3 i { color: #6c5ce7; }
#product .module-card ul { list-style: none; padding-left: 0; }
#product .module-card ul li { padding: 7px 0; color: #a0a8c0; position: relative; padding-left: 20px; }
#product .module-card ul li::before {
    content: '\f058'; font-family: 'Font Awesome 6 Free'; font-weight: 900;
    position: absolute; left: 0; color: #6c5ce7; font-size: 12px;
}
#product .process-block { margin: 38px 0 57px; padding: 38px 0; border-top: 1px solid rgba(255,255,255,0.063); border-bottom: 1px solid rgba(255,255,255,0.063); }
#product .process-steps { display: flex; flex-wrap: nowrap; justify-content: center; align-items: center; gap: 0; overflow-x: auto; padding: 18px 0; }
#product .step-item {
    flex: 0 0 192px; text-align: center; padding: 18px 10px;
    background: rgba(255,255,255,0.021); border: 1px solid rgba(255,255,255,0.053);
    border-radius: 14px; transition: 0.3s; position: relative;
}
#product .step-item:hover { border-color: #6c5ce7; transform: translateY(-4px); }
#product .step-item .step-num {
    display: inline-block; width: 34px; height: 34px; line-height: 34px; border-radius: 50%;
    background: linear-gradient(135deg, #6c5ce7, #0984e3); color: #fff;
    font-weight: 700; font-size: 15px; margin-bottom: 10px;
}
#product .step-item i { font-size: 30px; color: #0984e3; display: block; margin-bottom: 8px; }
#product .step-item h4 { font-size: 14px; margin-bottom: 5px; }
#product .step-item p { font-size: 12px; color: #8890a8; line-height: 1.4; }
#product .step-arrow { flex: 0 0 32px; text-align: center; color: #6c5ce7; font-size: 20px; opacity: 0.5; }
@media (max-width: 1110px) {
    #product .process-steps { flex-wrap: wrap; justify-content: center; }
    #product .step-arrow { display: none; }
    #product .step-item { flex: 0 0 47%; margin-bottom: 14px; }
}

/* ===== 价格介绍 ===== */
#pricing { padding-top: 139px; }
#pricing .pricing-intro { text-align: center; margin-bottom: 45px; }
#pricing .pricing-intro h2 { font-size: 33px; font-weight: 700; margin-bottom: 10px; }
#pricing .pricing-intro p { color: #8890a8; font-size: 16px; max-width: 765px; margin: 0 auto; }
#pricing .plan-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(282px, 1fr)); gap: 32px; margin-bottom: 40px; }
#pricing .plan-card {
    background: rgba(255,255,255,0.025); border: 1px solid rgba(255,255,255,0.058);
    border-radius: 22px; padding: 36px 24px; text-align: center; transition: 0.3s; position: relative;
}
#pricing .plan-card.featured { border-color: #6c5ce7; background: rgba(108,92,231,0.066); }
#pricing .plan-card:hover { transform: translateY(-6px); box-shadow: 0 14px 40px rgba(108,92,231,0.10); }
#pricing .plan-card .badge {
    display: inline-block; background: linear-gradient(135deg,#6c5ce7,#0984e3);
    color: #fff; font-size: 12px; font-weight: 600; padding: 4px 16px; border-radius: 20px; margin-bottom: 16px;
}
#pricing .plan-card h3 { font-size: 23px; margin-bottom: 8px; }
#pricing .plan-card .price { font-size: 40px; font-weight: 800; color: #6c5ce7; margin: 12px 0; }
#pricing .plan-card .price span { font-size: 16px; font-weight: 400; color: #8890a8; }
#pricing .plan-card ul { list-style: none; padding: 0; margin: 20px 0; }
#pricing .plan-card ul li { padding: 8px 0; color: #a0a8c0; border-bottom: 1px solid rgba(255,255,255,0.040); }
#pricing .plan-card ul li:last-child { border-bottom: none; }
#pricing .plan-card .btn-primary { margin-top: 12px; }

/* ===== 客户案例（5个） ===== */
#cases { padding-top: 137px; }
#cases .cases-intro { text-align: center; margin-bottom: 44px; }
#cases .cases-intro h2 { font-size: 33px; font-weight: 700; margin-bottom: 10px; }
#cases .cases-intro p { color: #8890a8; font-size: 16px; }
#cases .case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(288px, 1fr)); gap: 28px; }
#cases .case-card {
    background: rgba(255, 255, 255, 0.030); border: 1px solid rgba(255, 255, 255, 0.050);
    border-radius: 18px; padding: 26px; transition: 0.3s; display: flex; flex-direction: column;
}
#cases .case-card:hover { border-color: #0984e3; }
#cases .mock-screen {
    width: 100%; height: 298px;
    background: linear-gradient(148deg, #1e293b, #2d3748);
    border-radius: 14px; margin-bottom: 14px;
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden; border: 2px solid rgba(255, 255, 255, 0.091);
}
#cases .mock-screen .screen-content { text-align: center; color: #94a3b8; }
#cases .mock-screen .screen-content i { font-size: 56px; color: #6c5ce7; margin-bottom: 10px; display: block; }
#cases .mock-screen .screen-content span {
    font-size: 15px; background: rgba(108, 92, 231, 0.18); padding: 5px 14px; border-radius: 10px;
}
#cases .case-card .company { font-size: 19px; font-weight: 700; margin-bottom: 4px; }
#cases .case-card .industry { color: #6c5ce7; font-size: 13px; margin-bottom: 10px; }
#cases .case-card p { color: #a0a8c0; font-size: 14px; line-height: 1.6; flex: 1; }

/* ===== 关于我们 ===== */
#about { padding-top: 137px; }
#about .about-intro { text-align: center; margin-bottom: 44px; }
#about .about-intro h2 { font-size: 33px; font-weight: 700; margin-bottom: 10px; }
#about .about-intro p { color: #8890a8; font-size: 16px; max-width: 855px; margin: 0 auto; }
#about .about-content { display: flex; flex-wrap: wrap; gap: 48px; align-items: center; }
#about .about-text { flex: 1 1 456px; }
#about .about-text h3 { font-size: 27px; margin-bottom: 18px; }
#about .about-text p { color: #a0a8c0; margin-bottom: 18px; font-size: 16px; }
#about .about-stats { display: flex; gap: 36px; margin: 28px 0; }
#about .about-stats div { text-align: center; }
#about .about-stats .num { font-size: 34px; font-weight: 700; color: #6c5ce7; }
#about .about-stats .label { font-size: 13px; color: #8890a8; }
#about .contact-details {
    background: rgba(255, 255, 255, 0.027); border: 1px solid rgba(255, 255, 255, 0.047);
    border-radius: 14px; padding: 22px; margin: 18px 0;
}
#about .contact-details .contact-item {
    display: flex; align-items: center; gap: 14px;
    padding: 9px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.043);
}
#about .contact-details .contact-item:last-child { border-bottom: none; }
#about .contact-details .contact-item i { width: 26px; font-size: 18px; color: #6c5ce7; text-align: center; }
#about .contact-details .contact-item span { color: #c8d0e0; font-size: 14px; }
#about .about-image {
    flex: 1 1 384px; background: rgba(108, 92, 231, 0.045);
    border-radius: 28px; padding: 36px; text-align: center;
    border: 1px solid rgba(108, 92, 231, 0.12);
}
#about .about-image i { font-size: 117px; color: #6c5ce7; opacity: 0.405; }

/* ===== 页脚 ===== */
footer {
    background: rgba(10, 14, 26, 0.962);
    border-top: 1px solid rgba(255,255,255,0.067);
    padding: 40px 0 30px;
    margin-top: 30px;
}
footer .footer-container {
    max-width: 1360px; margin: 0 auto; padding: 0 24px;
    display: flex; flex-wrap: wrap; justify-content: space-between; gap: 30px;
}
footer .footer-brand { flex: 1 1 249px; }
footer .footer-brand .logo { font-size: 22px; margin-bottom: 10px; }
footer .footer-brand p { color: #8890a8; font-size: 14px; }
footer .footer-links { flex: 2 1 416px; display: flex; gap: 40px; flex-wrap: wrap; }
footer .footer-links h4 { font-size: 16px; margin-bottom: 12px; color: #c8d0e0; }
footer .footer-links ul { list-style: none; }
footer .footer-links ul li { margin-bottom: 6px; }
footer .footer-links ul li a { color: #8890a8; font-size: 14px; transition: color 0.3s; }
footer .footer-links ul li a:hover { color: #6c5ce7; }
footer .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.030);
    margin-top: 28px; padding-top: 18px;
    text-align: center; color: #6a7288; font-size: 13px;
}
footer .footer-bottom a { color: #6c5ce7; }
footer .friend-links {
    display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;
    margin-bottom: 12px;
}
footer .friend-links a {
    color: #6a7288; font-size: 13px; padding: 0 8px;
    border-right: 1px solid rgba(255,255,255,0.081);
}
footer .friend-links a:last-child { border-right: none; }
footer .friend-links a:hover { color: #6c5ce7; }

/* ===== 响应式 ===== */
@media (max-width: 998px) {
    nav { padding: 0 16px; flex-wrap: wrap; height: auto; padding-top: 10px; padding-bottom: 10px; }
    .nav-links { gap: 12px; font-size: 13px; flex-wrap: wrap; }
    .nav-right { display: none; }
    #home { padding-top: 244px; }
    #home .hero-left h1 { font-size: 28px; }
    #home .cycle-flow { width: 306px; height: 376px; }
    #home .flow-node { width: 96px; height: 117px; }
    #home .flow-node i { font-size: 21px; }
    #home .center-ring { width: 78px; height: 92px; font-size: 12px; }
    #home .arc-lines::before { width: 252px; height: 316px; }
    #home .cta-box { padding: 28px 18px; }
    #about .about-stats { flex-wrap: wrap; gap: 18px; }
    #cases .mock-screen { height: 236px; }
    footer .footer-container { flex-direction: column; align-items: center; text-align: center; }
    footer .footer-links { justify-content: center; }
}