/* Sponsor Page Styles */
.yi-sponsor-page {
    background-color: #0d0d0d;
    color: #ffffff;
    font-family: 'Noto Sans JP', sans-serif;
    padding-top: 64px;
}

.yi-container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.yi-section-header {
    margin-bottom: 50px;
}

.yi-section-subtitle {
    color: var(--primary-color);
    font-family: 'Oswald', sans-serif;
    font-size: 14px;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 10px;
}

.yi-section-title {
    font-size: 32px;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 20px 0;
    line-height: 1.4;
}

.yi-section-line {
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
}

/* Hero Section */
.yi-sponsor-hero {
    text-align: center;
    padding: 120px 0 80px;
    background: linear-gradient(180deg, #1a0800 0%, #0a0a0a 100%);
}

.yi-sponsor-subtitle {
    color: var(--primary-color);
    font-family: 'Oswald', sans-serif;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 4px;
    display: block;
    margin-bottom: 20px;
}

.yi-sponsor-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.2;
    margin: 0 0 30px 0;
    letter-spacing: -1px;
}

.yi-sponsor-hero-desc {
    font-size: 16px;
    color: #cccccc;
    line-height: 1.6;
}

/* Why Section */
.yi-sponsor-why {
    background-color: #111318;
}

.yi-why-box {
    background-color: #2a1610;
    border: 1px solid rgba(255, 107, 26, 0.2);
    border-radius: 8px;
    padding: 40px;
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.yi-why-stat {
    min-width: 150px;
}

.yi-why-stat-title {
    color: var(--primary-color);
    font-family: 'Oswald', sans-serif;
    font-size: 12px;
    letter-spacing: 1px;
    margin: 0 0 5px 0;
}

.yi-why-stat-value {
    font-size: 24px;
    font-weight: 700;
    font-family: 'Oswald', sans-serif;
}

.yi-why-stat-value span {
    font-size: 12px;
    font-family: 'Noto Sans JP', sans-serif;
    margin-left: 2px;
}

.yi-why-text-box {
    flex-grow: 1;
}

.yi-why-text-box p {
    margin: 0;
    font-size: 15px;
    line-height: 1.8;
    color: #dddddd;
}

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

.yi-why-card {
    background-color: #1a1a1c;
    border-radius: 8px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.yi-why-icon {
    font-size: 24px;
    margin-bottom: 20px;
}

.yi-why-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0 0 15px 0;
}

.yi-why-card-desc {
    font-size: 14px;
    line-height: 1.8;
    color: #aaaaaa;
    margin: 0;
}

/* Plan Section */
.yi-sponsor-plan {
    background-color: #0d0d0d;
}

.yi-plan-table-wrapper {
    overflow-x: auto;
}

.yi-plan-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.yi-plan-table th,
.yi-plan-table td {
    padding: 25px 20px;
    text-align: center;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    background-color: transparent;
}

.yi-plan-table th:first-child,
.yi-plan-table td:first-child {
    text-align: left;
    width: 35%;
    color: #ffffff;
    font-size: 14px;
    font-weight: 700;
    border-left: none;
}

.yi-plan-table th:last-child,
.yi-plan-table td:last-child {
    border-right: none;
}

.yi-plan-table th {
    border-bottom: 1px solid var(--primary-color);
    border-top: none;
    vertical-align: bottom;
    padding-bottom: 30px;
}

tr:first-child th {
    border-block-start: 1px solid hsla(0, 0%, 50%, 0) !important;
}

/* Highlight DREAM PARTNER column */
.yi-plan-table th.yi-plan-highlight,
.yi-plan-table td.yi-plan-highlight {
    background-color: #1a0e0a;
    border-left: 1px solid var(--primary-color);
    border-right: 1px solid var(--primary-color);
}

.yi-plan-table th.yi-plan-highlight {
    border-top: 1px solid var(--primary-color);
}



.yi-plan-name {
    font-family: 'Oswald', sans-serif;
    font-size: 16px;
    letter-spacing: 1px;
    display: block;
    color: #ffffff;
    margin-bottom: 5px;
}

.yi-plan-price {
    color: var(--primary-color);
    font-size: 24px;
    font-weight: 700;
    font-family: 'Oswald', sans-serif;
}

.yi-plan-price span {
    font-size: 12px;
    font-family: 'Noto Sans JP', sans-serif;
    color: #888888;
}

.yi-plan-check {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 18px;
}

.yi-plan-dash {
    color: #555555;
}

.yi-plan-note {
    font-size: 12px;
    color: #888888;
    margin-top: 20px;
}

/* Benefits Section */
.yi-sponsor-benefits {
    background-color: #111318;
}

.yi-benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.yi-benefit-card {
    background-color: #1a1a1c;
    border-radius: 8px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    gap: 20px;
}

.yi-benefit-num {
    color: var(--primary-color);
    font-family: 'Oswald', sans-serif;
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
}

.yi-benefit-content {
    flex-grow: 1;
}

.yi-benefit-title {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 15px 0;
}

.yi-benefit-desc {
    font-size: 14px;
    line-height: 1.8;
    color: #aaaaaa;
    margin: 0;
}

/* Flow Section */
.yi-sponsor-flow {
    background-color: #0d0d0d;
}

.yi-flow-list {
    max-width: 800px;
    margin: 0 auto;
}

.yi-flow-item {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
}

.yi-flow-item:last-child {
    margin-bottom: 0;
}

.yi-flow-item::after {
    content: '';
    position: absolute;
    left: 19px;
    top: 50px;
    bottom: -40px;
    width: 2px;
    background-color: rgba(255, 107, 26, 0.2);
}

.yi-flow-item:last-child::after {
    display: none;
}

.yi-flow-num {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Oswald', sans-serif;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.yi-flow-content {
    flex-grow: 1;
    padding-top: 8px;
}

.yi-flow-title {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 10px 0;
}

.yi-flow-desc {
    font-size: 15px;
    line-height: 1.8;
    color: #cccccc;
    margin: 0;
}

/* CTA Contact Section */
.yi-sponsor-cta {
    padding: 120px 20px;
    text-align: center;
    background: linear-gradient(180deg, #0a0a0a 0%, #1a0800 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.yi-cta-subtitle {
    color: var(--primary-color);
    font-family: 'Oswald', sans-serif;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 4px;
    display: block;
    margin-bottom: 20px;
}

.yi-cta-title {
    font-size: clamp(2rem, 4vw, 36px);
    font-weight: 700;
    margin: 0 0 30px 0;
    line-height: 1.4;
}

.yi-cta-line {
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 0 auto 30px;
}

.yi-cta-desc {
    font-size: 15px;
    color: #aaaaaa;
    margin: 0 auto 30px;
    max-width: 600px;
    line-height: 1.6;
}

.yi-cta-contact-info {
    margin-bottom: 40px;
}

.yi-cta-contact-info p {
    font-size: 16px;
    font-weight: 700;
    margin: 5px 0;
    color: #ffffff;
}

.yi-cta-contact-info p span {
    color: var(--primary-color);
    margin-right: 10px;
}

.yi-btn {
    padding: 16px 40px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
}

.yi-btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
}

.yi-btn-primary:hover {
    background-color: #e04e0f;
    color: #ffffff;
}

.yi-cta-note {
    display: block;
    font-size: 12px;
    color: #888888;
    margin-top: 15px;
}

/* Responsive */
@media (max-width: 992px) {
    .yi-why-box {
        flex-direction: column;
        gap: 20px;
    }

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

    .yi-benefits-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .yi-why-cards {
        grid-template-columns: 1fr;
    }
}