/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(180deg, #0b0b0f 0%, #0f0f14 55%, #120a14 100%);
    color: #ffffff;
    min-height: 100vh;
    padding-bottom: 180px; /* 为固定的 CTA 留出空间 */
}

.page-container {
    max-width: 640px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 36px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    width: 33px;
    height: 33px;
    object-fit: cover;
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.brand-name {
    font-size: 14px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1;
}

.brand-subtitle {
    font-size: 12px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1;
}

/* Hero Content */
.hero-content {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.hero-title {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.05;
    color: #ffffff;
}

.hero-description {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.7);
}

.cta-button {
    width: 100%;
    padding: 18px;
    border: none;
    border-radius: 999px;
    font-size: 24px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cta-button.primary {
    background: linear-gradient(90deg, #ffd86b 0%, #ff8a66 100%);
    color: #101010;
    box-shadow: 0px 10px 12px rgba(255, 138, 102, 0.2);
}

.cta-button.primary:hover {
    box-shadow: 0px 12px 16px rgba(255, 138, 102, 0.3);
    transform: translateY(-2px);
}

/* Hero Visual */
.hero-visual {
    width: 100%;
    border-radius: 32px;
    overflow: hidden;
    box-shadow: 0px 24px 24px rgba(0, 0, 0, 0.4);
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
}

/* Content Section */
.content {
    padding: 0 32px 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.section {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 28px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Section Header */
.section-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.section-title-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.section-title {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
}

.section-subtitle {
    font-size: 14px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.6);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    color: #ffffff;
    white-space: nowrap;
    flex-shrink: 0;
}

.badge-icon {
    width: 16px;
    height: 16px;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.feature-icon {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    width: 18px;
    height: 18px;
}

.feature-title {
    font-size: 16px;
    font-weight: 700;
    color: #ffffff;
}

.feature-description {
    font-size: 13px;
    font-weight: 400;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.6);
}

/* Partners Section */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.partner-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(230, 238, 248, 0.1);
    border-radius: 18px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 96px;
}

.partner-logo {
    width: 100%;
    height: 48px;
    object-fit: contain;
    border-radius: 8px;
}

.partner-name {
    font-size: 14px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
}

/* Footer */
.footer {
    padding: 20px 32px 24px;
    text-align: center;
}

.footer-text {
    font-size: 14px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.6);
}

/* Fixed CTA Banner */
.fixed-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(90deg, #ffd86b 0%, #ff8a66 100%);
    box-shadow: 0px 18px 18px rgba(255, 138, 102, 0.2);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    z-index: 1000;
    max-width: 640px;
    margin: 0 auto;
    border-radius: 28px 28px 0 0;
    height: 180px;
    box-sizing: border-box;
}

.fixed-cta-content {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
}

.fixed-cta-text {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
    max-width: 65%;
}

.fixed-cta-title {
    font-size: 24px;
    font-weight: 700;
    color: #101010;
}

.fixed-cta-subtitle {
    font-size: 14px;
    font-weight: 400;
    color: rgba(16, 16, 16, 0.8);
    white-space: nowrap;
}

.cta-badge {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    flex-shrink: 0;
    align-self: flex-start;
    margin-top: -4px;
}

.fixed-cta-button {
    background: #101010;
    color: #ffffff;
    font-size: 20px;
    padding: 20px 18px;
}

.fixed-cta-button:hover {
    background: #1a1a1a;
    transform: translateY(-2px);
    box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }

    .hero-description {
        font-size: 16px;
    }

    .cta-button {
        font-size: 18px;
        padding: 16px;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .section-title {
        font-size: 22px;
    }

    .section-subtitle {
        font-size: 12px;
    }

    .feature-card {
        padding: 14px;
        gap: 8px;
    }

    .feature-title {
        font-size: 14px;
    }

    .feature-description {
        font-size: 12px;
        line-height: 1.4;
    }

    .partner-card {
        padding: 12px;
        gap: 8px;
        height: 80px;
    }

    .partner-logo {
        height: 40px;
    }

    .partner-name {
        font-size: 12px;
    }

    .fixed-cta-title {
        font-size: 20px;
    }

    .fixed-cta-subtitle {
        font-size: 13px;
    }

    .fixed-cta-button {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 20px;
    }

    .content {
        padding: 0 20px 40px;
    }

    .section {
        padding: 20px;
    }

    .hero-title {
        font-size: 28px;
    }

    .section-title {
        font-size: 20px;
    }

    .section-subtitle {
        font-size: 11px;
    }

    .feature-card {
        padding: 12px;
        gap: 6px;
    }

    .feature-icon {
        width: 32px;
        height: 32px;
        border-radius: 16px;
    }

    .feature-icon img {
        width: 16px;
        height: 16px;
    }

    .feature-title {
        font-size: 13px;
    }

    .feature-description {
        font-size: 11px;
        line-height: 1.3;
    }

    .feature-grid {
        gap: 10px;
    }

    .partner-card {
        padding: 10px;
        gap: 6px;
        height: 72px;
    }

    .partner-logo {
        height: 36px;
    }

    .partner-name {
        font-size: 11px;
    }

    .partners-grid {
        gap: 10px;
    }

    .footer {
        padding: 20px 20px 24px;
    }

    .footer-text {
        font-size: 12px;
    }
}