/* ==========================================================================
   public.css - 合规静态页面共用样式（V1.1 · 阶段 C）

   适用范围：pages/ 目录下的 6 个合规页面
   - privacy.html        隐私政策
   - disclaimer.html     免责声明
   - payment-rules.html  付费与公益规则说明
   - fund-report.html    资金公示
   - restore.html        恢复解锁
   - apply-free.html     免费申请高级权限

   设计原则：
   - 复用主站 css/style.css 的 CSS 变量与基础组件（.btn / .card / .footer）
   - 本文件只补充「文档型页面」的排版样式（.page-doc 等）
   - 移动端优先，正文最大宽度 720px，行高 1.8
   ========================================================================== */


/* --------------------------------------------------------------------------
   1. 页面骨架
   -------------------------------------------------------------------------- */

body.page {
    margin: 0;
    padding: 0;
    background: var(--c-bg-sub, #f7f7f7);
    color: var(--c-text, #262626);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}


/* 顶部返回栏 */

.page-topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 10px;
    height: 52px;
    padding: 0 16px;
    background: #ffffff;
    border-bottom: 1px solid var(--c-border, #e8e8e8);
}

.page-topbar__back {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    color: var(--c-primary, #ff7a45);
    text-decoration: none;
    white-space: nowrap;
}

.page-topbar__back:hover {
    text-decoration: underline;
}

.page-topbar__title {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    /* 抵消左侧返回链接宽度，使标题视觉居中 */
    margin-right: 56px;
}


/* 正文容器 */

.page-main {
    max-width: 720px;
    margin: 0 auto;
    padding: 20px 16px 40px;
}


/* --------------------------------------------------------------------------
   2. 文档排版
   -------------------------------------------------------------------------- */

.page-doc {
    background: #ffffff;
    border: 1px solid var(--c-border, #e8e8e8);
    border-radius: var(--radius-card, 12px);
    padding: 20px 18px;
}

.page-doc__meta {
    margin: 0 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--c-border, #e8e8e8);
    font-size: 13px;
    color: var(--c-text-sub, #8c8c8c);
}

.page-doc h1 {
    margin: 0 0 8px;
    font-size: 20px;
    line-height: 1.5;
}

.page-doc h2 {
    margin: 28px 0 10px;
    padding-left: 10px;
    font-size: 17px;
    line-height: 1.5;
    border-left: 3px solid var(--c-primary, #ff7a45);
}

.page-doc h3 {
    margin: 20px 0 8px;
    font-size: 15px;
}

.page-doc p {
    margin: 0 0 12px;
}

.page-doc ul,
.page-doc ol {
    margin: 0 0 12px;
    padding-left: 22px;
}

.page-doc li {
    margin-bottom: 6px;
}

.page-doc a {
    color: var(--c-primary, #ff7a45);
    text-decoration: none;
}

.page-doc a:hover {
    text-decoration: underline;
}

.page-doc strong {
    font-weight: 600;
}

.page-doc code {
    padding: 1px 5px;
    font-size: 13px;
    background: var(--c-bg-sub, #f7f7f7);
    border-radius: 4px;
}


/* 提示块 */

.page-note {
    margin: 14px 0;
    padding: 12px 14px;
    font-size: 14px;
    line-height: 1.75;
    background: var(--c-primary-light, #fff2ec);
    border-left: 3px solid var(--c-primary, #ff7a45);
    border-radius: 6px;
}

.page-note--warn {
    background: #fffbe6;
    border-left-color: #faad14;
}

.page-note--danger {
    background: #fff1f0;
    border-left-color: #ff4d4f;
}


/* 表格 */

.page-table {
    width: 100%;
    margin: 12px 0 16px;
    border-collapse: collapse;
    font-size: 14px;
}

.page-table th,
.page-table td {
    padding: 8px 10px;
    text-align: left;
    border: 1px solid var(--c-border, #e8e8e8);
}

.page-table th {
    background: var(--c-bg-sub, #f7f7f7);
    font-weight: 600;
}


/* 注：T-32 已删除 .page-table td.num —— 全站表格单元格均未使用 class="num"，属死代码。 */


/* V1.2（L1）：免费 / 高级功能并排对比表 */

.page-table--compare {
    font-size: 13px;
}

.page-table--compare th,
.page-table--compare td {
    padding: 7px 8px;
    vertical-align: middle;
}

.page-table--compare th:nth-child(2),
.page-table--compare th:nth-child(3),
.page-table--compare td:nth-child(2),
.page-table--compare td:nth-child(3) {
    text-align: center;
    white-space: nowrap;
}

.page-table--compare .cell-yes {
    color: #2E9E5B;
    font-weight: 600;
}

.page-table--compare .cell-no {
    color: #bfbfbf;
}

.page-table--compare .cell-price {
    color: var(--c-primary, #FF7A45);
    font-weight: 600;
}


/* --------------------------------------------------------------------------
   3. 表单（恢复解锁 / 免费申请）
   -------------------------------------------------------------------------- */

.page-form {
    margin: 16px 0;
}

.page-form__row {
    margin-bottom: 14px;
}

.page-form__label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
}


/* 注：T-32 已删除 .page-form__textarea / .page-form__input--code / .page-form__hint ——
   全站公开页表单统一使用 .input / .input--select（见 pages/*.html），
   上述三条规则无任何引用，属死代码。 */

.page-form__input {
    width: 100%;
    box-sizing: border-box;
    padding: 10px 12px;
    font-size: 15px;
    font-family: inherit;
    color: var(--c-text, #262626);
    background: #ffffff;
    border: 1px solid var(--c-border, #e8e8e8);
    border-radius: var(--radius-btn, 8px);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.page-form__input:focus {
    outline: none;
    border-color: var(--c-primary, #ff7a45);
    box-shadow: 0 0 0 2px var(--c-primary-light, #fff2ec);
}


/* 结果提示 */

.page-result {
    margin-top: 14px;
    padding: 12px 14px;
    font-size: 14px;
    border-radius: 6px;
}

.page-result--ok {
    background: #f6ffed;
    border: 1px solid #b7eb8f;
    color: #389e0d;
}

.page-result--err {
    background: #fff1f0;
    border: 1px solid #ffa39e;
    color: #cf1322;
}

.page-result--warn {
    background: #fffbe6;
    border: 1px solid #ffe58f;
    color: #d48806;
}

.page-result[hidden] {
    display: none;
}


/* 表单内的通用控件（复用主站 .input / .btn 类） */

.page-form .input {
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 14px;
}

.page-form .input--select {
    appearance: none;
    -webkit-appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, #8c8c8c 50%), linear-gradient(135deg, #8c8c8c 50%, transparent 50%);
    background-position: calc(100% - 18px) calc(50% + 2px), calc(100% - 13px) calc(50% + 2px);
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    padding-right: 34px;
}

.page-form textarea.input {
    min-height: 96px;
    resize: vertical;
    font-family: inherit;
}

.page-form .btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.page-form .btn-row .btn {
    flex: 1 1 auto;
}

.page-form .btn--block {
    width: 100%;
}


/* --------------------------------------------------------------------------
   4. 资金公示专用
   -------------------------------------------------------------------------- */

.fund-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin: 16px 0;
}

.fund-card {
    padding: 12px;
    background: var(--c-bg-sub, #f7f7f7);
    border: 1px solid var(--c-border, #e8e8e8);
    border-radius: var(--radius-btn, 8px);
}


/* 高亮卡片：公益池余额 */

.fund-card--hl {
    background: var(--c-primary-light, #fff2ec);
    border-color: var(--c-primary, #ff7a45);
}

.fund-card--hl .fund-card__value {
    color: var(--c-primary, #ff7a45);
}


/* 表格横向滚动容器（窄屏防溢出） */

.page-table-wrap {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.fund-card__label {
    font-size: 12px;
    color: var(--c-text-sub, #8c8c8c);
}

.fund-card__value {
    margin-top: 4px;
    font-size: 20px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}


/* 注：T-32 已删除 .fund-card__value--primary / .fund-month / .fund-month label /
   .fund-month input[type="month"] ——
   pages/fund-report.html 使用 .fund-card--hl 与 .page-form + .input--select，
   上述规则全站无引用，属死代码。 */

.fund-empty {
    padding: 24px 0;
    text-align: center;
    font-size: 14px;
    color: var(--c-text-sub, #8c8c8c);
}


/* --------------------------------------------------------------------------
   5. 页脚（与主站一致）
   -------------------------------------------------------------------------- */

.page-footer {
    max-width: 720px;
    margin: 0 auto;
    padding: 20px 16px 32px;
    text-align: center;
    font-size: 12px;
    line-height: 1.9;
    color: var(--c-text-sub, #8c8c8c);
}

.page-footer__links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 4px 8px;
    margin-bottom: 8px;
}

.page-footer__links a {
    color: var(--c-text-sub, #8c8c8c);
    text-decoration: none;
}

.page-footer__links a:hover {
    color: var(--c-primary, #ff7a45);
    text-decoration: underline;
}

.page-footer__sep {
    color: var(--c-border, #e8e8e8);
    user-select: none;
}

.page-footer p {
    margin: 4px 0 0;
}


/* --------------------------------------------------------------------------
   6. 响应式
   -------------------------------------------------------------------------- */

@media (min-width: 768px) {
    .page-main {
        padding: 28px 16px 48px;
    }
    .page-doc {
        padding: 28px 32px;
    }
    .fund-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 374px) {
    body.page {
        font-size: 14px;
    }
    .page-doc {
        padding: 16px 14px;
    }
    .fund-cards {
        grid-template-columns: 1fr;
    }
}


/* --------------------------------------------------------------------------
   7. 公益名额卡片（V1.8：免费申请限量机制）
   -------------------------------------------------------------------------- */

.quota-card {
    margin: 16px 0 20px;
    padding: 14px 16px;
    border: 1px solid var(--c-border, #e8e8e8);
    border-radius: 12px;
    background: var(--c-primary-light, #fff2ec);
}

.quota-card__head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
}

.quota-card__label {
    font-size: 13px;
    color: var(--c-text-sub, #8c8c8c);
}

.quota-card__value {
    font-size: 20px;
    font-weight: 600;
    color: var(--c-primary, #ff7a45);
    font-variant-numeric: tabular-nums;
}

.quota-card__bar {
    margin-top: 10px;
    height: 6px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.quota-card__bar-fill {
    height: 100%;
    border-radius: 999px;
    background: var(--c-primary, #ff7a45);
    transition: width 0.3s ease;
}

.quota-card__hint {
    margin: 10px 0 0;
    font-size: 12px;
    line-height: 1.6;
    color: var(--c-text-sub, #8c8c8c);
}


/* --------------------------------------------------------------------------
   8. 邀请与优惠券（V1.8）
   -------------------------------------------------------------------------- */

.invite-code {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin: 12px 0;
    padding: 14px 16px;
    border: 1px dashed var(--c-primary, #ff7a45);
    border-radius: 12px;
    background: var(--c-primary-light, #fff2ec);
}

.invite-code__value {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--c-primary, #ff7a45);
    user-select: all;
}

.invite-link {
    display: block;
    width: 100%;
    margin: 8px 0 0;
    padding: 10px 12px;
    border: 1px solid var(--c-border, #e8e8e8);
    border-radius: 8px;
    background: #fafafa;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 12px;
    line-height: 1.5;
    color: var(--c-text, #333);
    word-break: break-all;
}

.coupon-card {
    margin: 16px 0;
    padding: 16px;
    border: 1px solid var(--c-border, #e8e8e8);
    border-radius: 12px;
    background: #fff;
}

.coupon-card--active {
    border-color: var(--c-primary, #ff7a45);
    background: var(--c-primary-light, #fff2ec);
}

.coupon-card__amount {
    font-size: 28px;
    font-weight: 700;
    color: var(--c-primary, #ff7a45);
    font-variant-numeric: tabular-nums;
}

.coupon-card__meta {
    margin-top: 6px;
    font-size: 12px;
    color: var(--c-text-sub, #8c8c8c);
}

.invite-steps {
    margin: 12px 0;
    padding-left: 20px;
}

.invite-steps li {
    margin: 6px 0;
    line-height: 1.7;
}

.invite-bind {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 12px 0;
}

.invite-bind .input {
    flex: 1 1 200px;
    min-width: 0;
}


/* ---------------------------------------------------------------------------
   T-27：访问统计趋势图（纯 CSS 柱状图，零依赖）
   --------------------------------------------------------------------------- */

.visit-chart {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 120px;
    margin: 12px 0 6px;
    padding: 0 0 1px;
    border-bottom: 1px solid var(--c-border, #e8e8e8);
}

.visit-chart__bar {
    flex: 1 1 0;
    min-width: 0;
    min-height: 2px;
    background: var(--c-primary, #ff7a45);
    border-radius: 1px 1px 0 0;
    transition: opacity 0.15s ease;
}

.visit-chart__bar:hover {
    opacity: 0.75;
}

.visit-chart__bar--empty {
    background: var(--c-border, #e8e8e8);
}

.visit-chart__bar--today {
    background: var(--c-primary-dark, #d9531e);
}