* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

:root {
    --primary: #0066FF;
    --primary-dark: #0052CC;
    --accent: #FF6B35;
    --dark: #1A1A2E;
    --gray: #666666;
    --light-gray: #F5F7FA;
    --white: #FFFFFF;
}

body {
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    padding: 12px 0;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 36px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    color: var(--gray);
    font-size: 15px;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover { color: var(--primary); }

.nav-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 14px;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
}

.btn-outline {
    border: 1px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

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

.login-link { color: var(--gray); font-size: 15px; }
.login-link:hover { color: var(--primary); }

/* Banner */
.banner {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #E8F4FF 0%, #F0F7FF 50%, #E8ECFF 100%);
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

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

.banner-text h1 {
    font-size: 48px;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--dark);
}

.banner-text h1 span {
    color: var(--primary);
}

.banner-sub {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 12px;
}

.banner-slogan {
    font-size: 24px;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 32px;
}

.banner-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.banner-url {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 16px;
}

.banner-url i { font-size: 12px; }

.banner-image {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: var(--dark);
    border-radius: 36px;
    padding: 12px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.15);
    animation: float 6s ease-in-out infinite;
}

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

.phone-screen {
    background: var(--white);
    height: 100%;
    border-radius: 28px;
    padding: 24px 16px;
    overflow-y: auto;
}

.profile-header {
    text-align: center;
    margin-bottom: 20px;
}

.profile-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
}

.profile-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.profile-bio {
    font-size: 12px;
    color: var(--gray);
}

.link-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--light-gray);
    padding: 14px;
    border-radius: 12px;
    margin-bottom: 10px;
    transition: all 0.3s;
    cursor: pointer;
}

.link-card:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.link-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
}

.link-icon.wechat { background: #07C160; }
.link-icon.douyin { background: #000; }
.link-icon.xiaohongshu { background: #FF2442; }
.link-icon.weibo { background: #E6162D; }

.link-info { flex: 1; }
.link-title { font-size: 14px; font-weight: 600; color: var(--dark); }
.link-desc { font-size: 11px; color: var(--gray); }

/* 场景展示 */
.scenes {
    padding: 100px 0;
    background: var(--white);
}

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

.section-tag {
    display: inline-block;
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    color: var(--dark);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 18px;
    color: var(--gray);
}

.scene-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.scene-card {
    background: var(--white);
    border-radius: 20px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: all 0.3s;
    border: 1px solid #F0F0F0;
}

.scene-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 102, 255, 0.12);
    border-color: var(--primary);
}

.scene-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 20px;
}

.scene-icon.blue { background: linear-gradient(135deg, #0066FF, #4499FF); color: white; }
.scene-icon.orange { background: linear-gradient(135deg, #FF6B35, #FF9F6B); color: white; }
.scene-icon.purple { background: linear-gradient(135deg, #8B5CF6, #A78BFA); color: white; }
.scene-icon.green { background: linear-gradient(135deg, #10B981, #34D399); color: white; }
.scene-icon.pink { background: linear-gradient(135deg, #EC4899, #F472B6); color: white; }
.scene-icon.cyan { background: linear-gradient(135deg, #06B6D4, #22D3EE); color: white; }

.scene-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--dark);
}

.scene-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.scene-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
}

.scene-link:hover { gap: 10px; }

/* 案例展示 */
.cases {
    padding: 100px 0;
    background: var(--light-gray);
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--white);
    border-radius: 20px;
    padding: 32px;
    display: flex;
    gap: 24px;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.04);
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
}

.case-icon-wrap {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
    flex-shrink: 0;
}

.case-card:nth-child(1) .case-icon-wrap { background: linear-gradient(135deg, #FF6B35, #FF9F6B); }
.case-card:nth-child(2) .case-icon-wrap { background: linear-gradient(135deg, #10B981, #34D399); }
.case-card:nth-child(3) .case-icon-wrap { background: linear-gradient(135deg, #0066FF, #4499FF); }
.case-card:nth-child(4) .case-icon-wrap { background: linear-gradient(135deg, #8B5CF6, #A78BFA); }
.case-card:nth-child(5) .case-icon-wrap { background: linear-gradient(135deg, #EC4899, #F472B6); }
.case-card:nth-child(6) .case-icon-wrap { background: linear-gradient(135deg, #06B6D4, #22D3EE); }

.case-tag {
    display: inline-block;
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.case-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--dark);
}

.case-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

.case-highlight {
    color: var(--primary);
    font-weight: 600;
}

/* CTA */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    text-align: center;
    color: white;
}

.cta h2 {
    font-size: 40px;
    margin-bottom: 16px;
}

.cta p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.cta .btn {
    background: white;
    color: var(--primary);
    padding: 14px 40px;
    font-size: 16px;
}

.cta .btn:hover {
    background: var(--light-gray);
    transform: translateY(-2px);
}

/* 页脚 */
footer {
    background: var(--dark);
    color: rgba(255,255,255,0.6);
    padding: 60px 0 30px;
    font-size: 14px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand img {
    height: 32px;
    margin-bottom: 16px;
}

.footer-col h4 {
    color: white;
    font-size: 15px;
    margin-bottom: 20px;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a:hover { color: white; }

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 13px;
}

.beian {
    margin-top: 12px;
}

.beian a {
    color: rgba(255,255,255,0.5);
    text-decoration: underline;
}

.beian a:hover {
    color: white;
}

/* 右侧悬浮栏 */
.floating-sidebar {
    position: fixed;
    right: 24px;
    bottom: 80px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.float-btn {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--white);
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary);
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    position: relative;
}

.float-btn:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 102, 255, 0.25);
    color: var(--primary-dark);
}

.float-tooltip {
    position: absolute;
    right: 68px;
    background: var(--dark);
    color: white;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s;
}

.float-btn:hover .float-tooltip {
    opacity: 1;
}

.phone-tooltip {
    background: var(--primary);
    font-size: 16px;
    padding: 10px 16px;
}

.float-popup {
    position: absolute;
    right: 68px;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    padding: 14px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    display: none;
    flex-direction: column;
    align-items: center;
    width: 140px;
}

.float-popup img {
    width: 110px;
    height: 110px;
    border-radius: 8px;
    object-fit: cover;
}

.float-popup p {
    font-size: 13px;
    color: #333;
    margin-top: 10px;
    text-align: center;
}

.float-btn:hover .float-popup {
    display: flex;
}

.float-btn.wechat:hover { background: #07C160; color: white; }
.float-btn.service:hover { background: var(--primary); color: white; }

/* 响应式 */
@media (max-width: 968px) {
    .banner-content { grid-template-columns: 1fr; text-align: center; }
    .banner-image { margin-top: 40px; }
    .banner-buttons { justify-content: center; }
    .scene-grid { grid-template-columns: 1fr; }
    .case-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .nav-links { display: none; }
    .floating-sidebar { display: none; }
}

@media (max-width: 576px) {
    .banner-text h1 { font-size: 32px; }
    .section-title { font-size: 28px; }
    .footer-grid { grid-template-columns: 1fr; }
    .phone-mockup { width: 240px; height: 480px; }
}

/* index.html 白色头部 - 用户信息样式 */
header .user-info {
    background: var(--white);
    border: 1px solid #E5E7EB;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

header .user-info:hover {
    background: var(--white);
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    border-color: #D1D5DB;
}

header .user-name {
    color: var(--dark);
}

header .user-avatar {
    border-color: var(--primary);
    background-color: #E8F0FE;
}