/* 漫画留言区 —— 单列卡片、手机友好；宽屏列表左 / 写作右 */

.gb-visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.guestbook-page {
    max-width: 42rem;
    margin-left: auto;
    margin-right: auto;
}

.gb-layout {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.gb-col-compose,
.gb-col-list {
    min-width: 0;
}

.gb-card {
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #ddd);
    border-radius: 14px;
    padding: 1rem 1.15rem;
    margin-bottom: 0.85rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.gb-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.gb-item-host {
    border-color: var(--color-accent, #6c6453);
    background: var(--color-accent-soft, rgba(108, 100, 83, 0.1));
}

.gb-item-host .gb-nick {
    color: var(--color-accent, #6c6453);
}

.gb-pin-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent, #6c6453);
    opacity: 0.85;
}

@media (min-width: 1100px) {
    .guestbook-page {
        max-width: min(86rem, 100%);
    }

    .gb-layout {
        display: grid;
        grid-template-columns: minmax(0, 42rem) minmax(0, 42rem);
        gap: 1rem 1.25rem;
        justify-content: center;
        align-items: start;
    }

    .gb-col-list {
        grid-column: 1;
        grid-row: 1;
    }

    .gb-col-compose {
        grid-column: 2;
        grid-row: 1;
        position: sticky;
        top: 1rem;
    }

    .gb-col-compose .gb-composer {
        margin-bottom: 0;
    }
}

.gb-hint {
    color: var(--color-muted, #666);
    font-size: 0.88rem;
    line-height: 1.5;
    margin: 0 0 0.65rem;
}

.gb-status {
    font-size: 0.88rem;
    margin: 0.35rem 0 0.65rem;
    min-height: 1.1em;
}

.gb-status.err {
    color: var(--color-danger, #a33);
}

.gb-status.ok {
    color: var(--color-ok, #2a7);
}

.gb-empty {
    color: var(--color-muted, #666);
    font-size: 0.95rem;
    padding: 0.85rem 1rem;
    background: var(--color-surface, #fff);
    border: 1px dashed var(--color-border, #ddd);
    border-radius: 14px;
}

.gb-item {
    /* card styles via .gb-card */
}

.gb-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    align-items: baseline;
    margin-bottom: 0.45rem;
    font-size: 0.85rem;
    color: var(--color-muted, #666);
}

.gb-nick {
    font-weight: 600;
    color: var(--color-text, #333);
    font-size: 0.95rem;
}

.gb-edited-btn {
    margin: 0;
    padding: 0;
    border: none;
    background: none;
    font: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-accent, #6c6453);
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 2px;
    min-height: 1.6em;
}

.gb-edit-history {
    margin: 0.35rem 0 0.65rem;
    padding: 0.65rem 0.75rem;
    border-radius: 10px;
    background: var(--color-accent-soft, rgba(108, 100, 83, 0.1));
    border: 1px dashed var(--color-border, #ddd);
}

.gb-edit-history-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-accent, #6c6453);
    margin-bottom: 0.45rem;
}

.gb-edit-history-item + .gb-edit-history-item {
    margin-top: 0.55rem;
    padding-top: 0.55rem;
    border-top: 1px solid var(--color-border, #ddd);
}

.gb-edit-history-meta {
    font-size: 0.75rem;
    color: var(--color-muted, #666);
    margin-bottom: 0.25rem;
}

.gb-body-wrap {
    position: relative;
}

.gb-body {
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}

.gb-body-wrap.is-clamped .gb-body {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 5;
    overflow: hidden;
}

/* 微博式：叠在末行右侧，不完全换行独占一行 */
.gb-body-wrap.is-clamped .gb-toggle {
    position: absolute;
    right: 0;
    bottom: 0;
    margin: 0;
    padding: 0 0 0 1.75em;
    min-height: 0;
    line-height: 1.6;
    border: none;
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0),
        var(--color-surface, #fff) 32%
    );
    color: var(--color-accent, #6c6453);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}

.gb-body-wrap:not(.is-clamped) .gb-toggle {
    display: inline;
    margin-left: 0.35em;
    padding: 0;
    min-height: 0;
    border: none;
    background: none;
    color: var(--color-accent, #6c6453);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    vertical-align: baseline;
}

.gb-toggle[hidden] {
    display: none !important;
}

.gb-reply {
    margin-top: 0.75rem;
    padding: 0.75rem 0.9rem;
    border-radius: 10px;
    background: var(--color-accent-soft, rgba(108, 100, 83, 0.12));
}

.gb-reply-label {
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
    color: var(--color-accent, #6c6453);
}

.gb-compose-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    width: 100%;
    justify-content: flex-start;
    font: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    background: transparent;
    color: var(--color-accent, #6c6453);
    padding: 0.15rem 0;
    min-height: 2.4rem;
}

.gb-compose-icon {
    flex-shrink: 0;
}

.gb-composer.is-open .gb-compose-toggle {
    margin-bottom: 0.65rem;
    padding-bottom: 0.55rem;
    border-bottom: 1px solid var(--color-border, #ddd);
}

.gb-compose-panel[hidden] {
    display: none !important;
}

.gb-form label {
    display: block;
    margin: 0.55rem 0 0.25rem;
    font-size: 0.85rem;
    color: var(--color-muted, #666);
}

.gb-form input[type='text'],
.gb-form input[type='email'],
.gb-form select,
.gb-form textarea {
    width: 100%;
    box-sizing: border-box;
    font: inherit;
    padding: 0.5rem 0.65rem;
    border: 1px solid var(--color-border, #ddd);
    border-radius: 8px;
    background: var(--color-surface, #fff);
    color: var(--color-text, #333);
}

.gb-form textarea {
    min-height: 7rem;
    resize: vertical;
    line-height: 1.5;
}

.gb-field-block {
    margin-top: 0.85rem;
}

.gb-field-block:first-child {
    margin-top: 0.15rem;
}

.gb-legend {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--color-text, #333);
    margin: 0;
}

.gb-legend-row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.35rem 0.75rem;
    margin: 0 0 0.4rem;
}

.gb-legend-side {
    margin: 0;
    flex: 1 1 12rem;
    font-size: 0.8rem;
    color: var(--color-muted, #666);
    line-height: 1.4;
}

.gb-legend-side.is-warn {
    color: var(--color-accent, #6c6453);
}

.gb-anon {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin: 0.15rem 0 0;
}

.gb-anon-option {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.45rem 0.65rem;
}

.gb-anon-label {
    display: inline-flex;
    align-items: flex-start;
    gap: 0.4rem;
    margin: 0;
    font-size: 0.88rem;
    color: var(--color-text, #333);
    cursor: pointer;
    line-height: 1.35;
    flex: 0 1 auto;
    max-width: 100%;
}

.gb-anon-label input {
    margin-top: 0.15rem;
    width: auto;
    flex-shrink: 0;
}

.gb-nick-inline {
    flex: 1 1 8rem;
    min-width: 7rem;
    max-width: 14rem;
    width: auto !important;
    padding: 0.4rem 0.55rem !important;
    font-size: 0.88rem;
}

.gb-nick-inline[hidden] {
    display: none !important;
}

.gb-contact-row {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
}

.gb-contact-row .gb-channel {
    flex: 0 0 6.5rem;
    max-width: 30%;
}

.gb-contact-row .gb-contact-value {
    flex: 1 1 auto;
    min-width: 0;
}

.gb-check {
    display: flex;
    align-items: flex-start;
    gap: 0.45rem;
    margin: 0.35rem 0 0.45rem;
    font-size: 0.88rem;
    cursor: pointer;
    color: var(--color-text, #333);
}

.gb-check input {
    width: auto;
    margin-top: 0.15rem;
}

.gb-body-legend {
    margin-bottom: 0.45rem;
}

.gb-check-inline {
    margin: 0;
    align-items: center;
    font-weight: 400;
    font-size: 0.88rem;
    flex: 0 1 auto;
}

.gb-check-inline input {
    margin-top: 0;
}

.gb-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
    align-items: center;
}

.gb-actions button {
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    border-radius: 8px;
    border: 1px solid var(--color-accent, #6c6453);
    background: var(--color-accent, #6c6453);
    color: #fff;
    padding: 0.55rem 1rem;
    min-height: 2.5rem;
}

.gb-actions button.secondary {
    background: transparent;
    color: var(--color-accent, #6c6453);
}

.gb-actions button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.gb-hp {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    width: 0;
    overflow: hidden;
}

.gb-preview-box {
    border: 1px solid var(--color-border, #ddd);
    border-radius: 10px;
    padding: 0.85rem 1rem;
    background: var(--color-surface-dim, #f8f8f7);
    margin: 0.75rem 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

.gb-preview-box dt {
    font-weight: 600;
    margin-top: 0.5rem;
    color: var(--color-muted, #666);
    font-size: 0.8rem;
}

.gb-preview-box dt:first-child {
    margin-top: 0;
}

.gb-preview-box dd {
    margin: 0.15rem 0 0;
    white-space: pre-wrap;
    word-break: break-word;
}

.gb-turnstile-wrap {
    margin: 1rem 0;
    min-height: 70px;
}

.gb-step {
    display: none;
}

.gb-step.is-active {
    display: block;
}

.gb-success {
    border-radius: 12px;
    padding: 1rem 1.1rem;
    background: var(--color-accent-soft, rgba(108, 100, 83, 0.12));
    margin-bottom: 1rem;
}

.gb-success h3 {
    margin: 0 0 0.5rem;
    font-size: 1.05rem;
}

@media (max-width: 640px) {
    .guestbook-page {
        max-width: none;
    }

    main.guestbook-main {
        padding: 0.35rem 0.65rem 1.25rem !important;
        margin-left: 0.5rem !important;
        margin-right: 0.5rem !important;
        min-width: 0 !important;
    }

    .gb-contact-row .gb-channel {
        flex-basis: 5.75rem;
    }

    .gb-legend-side {
        flex-basis: 100%;
    }
}