/* +----------------------------------------------------------------------
   | AegisAuth 赞助页样式（技术网格×亚麻商务风）
   +---------------------------------------------------------------------- */

:root {
    --color-brand: #A0522D;        /* 棕色系主色（Sienna） */
    --color-brand-dark: #8B4513;   /* 深棕（SaddleBrown）用于 hover */
    --color-brand-light: #D2B48C;  /* 浅棕（Tan）用于背景 */
    --color-accent: #3EB489;       /* 薄荷绿辅助色 */
    --color-accent-light: #98FB98; /* 浅薄荷绿 */
    --color-bg: #FAF7F2;           /* 亚麻暖白 */
    --color-linen: #F5F2EC;
    --color-text: #3D2817;         /* 深棕文字 */
    --color-text-muted: #8B7355;
    --color-border: #E5DDD0;
    --color-card: #FFFFFF;
    --shadow-sm: 0 1px 2px rgba(139, 69, 19, 0.06);
    --shadow-md: 0 4px 12px rgba(139, 69, 19, 0.08);
    --radius: 8px;
}

/* ============================================================
   页头
   ============================================================ */
.sponsor-hero {
    background: var(--color-bg);
    background-image:
        radial-gradient(circle, rgba(160, 82, 45, 0.06) 1px, transparent 1px);
    background-size: 24px 24px;
    /* padding-top 需 ≥ 100px 以避开 fixed site-header（约 60-72px），
       与全局 HEADER_OFFSET=100 / scroll-padding-top:100px 保持一致 */
    padding: 120px 0 48px;
    text-align: center;
}

.sponsor-hero-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-brand);
    margin: 0 0 12px;
}

.sponsor-hero-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* ============================================================
   统计概览
   ============================================================ */
.sponsor-stats-section {
    padding: 32px 0;
}

.sponsor-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 600px;
    margin: 0 auto;
}

.sponsor-stat-card {
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 28px 20px;
    text-align: center;
}

.sponsor-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-brand);
    line-height: 1.2;
}

.sponsor-stat-label {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: 8px;
}

/* ============================================================
   赞助表单
   ============================================================ */
.sponsor-form-section {
    padding: 24px 0 48px;
}

.sponsor-form-card {
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 36px 32px;
    max-width: 640px;
    margin: 0 auto;
}

.sponsor-form-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 24px;
    text-align: center;
}

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

.sponsor-form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.sponsor-form-input,
.sponsor-form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-bg);
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
}

.sponsor-form-input:focus,
.sponsor-form-textarea:focus {
    outline: none;
    border-color: var(--color-brand);
    box-shadow: 0 0 0 3px rgba(160, 82, 45, 0.1);
}

.sponsor-form-textarea {
    resize: vertical;
    font-family: inherit;
}

/* 预设金额按钮 */
.sponsor-preset-amounts {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
}

.preset-amount-btn {
    flex: 1;
    min-width: 80px;
    padding: 12px 8px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-card);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s;
}

.preset-amount-btn:hover {
    border-color: var(--color-brand);
    color: var(--color-brand);
}

.preset-amount-btn.active {
    border-color: var(--color-accent);
    background: rgba(62, 180, 137, 0.08);
    color: var(--color-accent);
}

/* 支付渠道 */
.sponsor-channel-group {
    display: flex;
    gap: 16px;
}

.sponsor-channel-option {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: border-color 0.2s;
}

.sponsor-channel-option:hover {
    border-color: var(--color-brand);
}

.sponsor-channel-option input[type="radio"] {
    accent-color: var(--color-brand);
}

/* 匿名选项 */
.sponsor-anonymous-option {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    cursor: pointer;
}

.sponsor-anonymous-option input[type="checkbox"] {
    accent-color: var(--color-brand);
}

/* 提交按钮 */
.sponsor-submit-btn {
    width: 100%;
    padding: 14px;
    font-size: 1.05rem;
    font-weight: 600;
    margin-top: 8px;
}

.sponsor-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.sponsor-form-hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-top: 12px;
}

/* ============================================================
   赞助排行
   ============================================================ */
.sponsor-ranking-section {
    background: var(--color-linen);
    padding: 48px 0;
}

.section-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-brand);
    text-align: center;
    margin: 0 0 8px;
}

.section-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    text-align: center;
    margin: 0 0 28px;
}

.sponsor-ranking-list {
    max-width: 720px;
    margin: 0 auto;
}

.sponsor-ranking-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 16px 20px;
    margin-bottom: 12px;
    transition: box-shadow 0.2s;
}

.sponsor-ranking-item:hover {
    box-shadow: var(--shadow-md);
}

.sponsor-ranking-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-brand);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 600;
    flex-shrink: 0;
}

.sponsor-ranking-info {
    flex: 1;
    min-width: 0;
}

.sponsor-ranking-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 4px;
}

.sponsor-ranking-message {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sponsor-ranking-amount {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-accent);
    flex-shrink: 0;
}

.sponsor-ranking-time {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    flex-shrink: 0;
    white-space: nowrap;
}

/* ============================================================
   留言墙
   ============================================================ */
.sponsor-messages-section {
    padding: 48px 0;
}

.sponsor-messages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
    max-width: 960px;
    margin: 0 auto;
}

.sponsor-message-card {
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 20px;
    transition: box-shadow 0.2s, transform 0.2s;
}

.sponsor-message-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.sponsor-message-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.sponsor-message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-brand);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 600;
    flex-shrink: 0;
}

.sponsor-message-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
}

.sponsor-message-amount {
    font-size: 0.8rem;
    color: var(--color-accent);
    font-weight: 600;
}

.sponsor-message-text {
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.6;
    margin: 0;
}

.sponsor-message-time {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 8px;
}

/* ============================================================
   加载更多
   ============================================================ */
.sponsor-load-more {
    text-align: center;
    margin-top: 24px;
}

.btn-outline {
    padding: 10px 32px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    background: transparent;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-outline:hover {
    border-color: var(--color-brand);
    color: var(--color-brand);
}

.btn-outline:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 640px) {
    .sponsor-hero {
        padding: 100px 0 32px;
    }

    .sponsor-hero-title {
        font-size: 1.6rem;
    }

    .sponsor-stats-grid {
        grid-template-columns: 1fr;
    }

    .sponsor-form-card {
        padding: 24px 20px;
    }

    .sponsor-preset-amounts {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }

    .preset-amount-btn {
        min-width: 60px;
    }

    .sponsor-channel-group {
        flex-direction: column;
    }

    .sponsor-ranking-item {
        flex-wrap: wrap;
    }

    .sponsor-messages-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   立即赞助 CTA 区域
   ============================================================ */
.sponsor-cta-area {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
}

.sponsor-cta-btn {
    display: inline-block;
    padding: 0.875rem 2.5rem;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: var(--radius);
    background: var(--color-brand);
    color: #fff;
    border: none;
    text-decoration: none;
    box-shadow: var(--shadow-md);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.sponsor-cta-btn:hover {
    transform: translateY(-2px);
    background: var(--color-accent);
    color: #fff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* ============================================================
   赞助已关闭页 - 大号提示文本（内联样式迁移）
   ============================================================ */
.sponsor-form-hint-large {
    font-size: 1rem;
    line-height: 1.8;
    margin: 24px 0;
}