/* 路由沿用旧文件名；工具内容按“选择、算法、参数、结果”连续纵向排列。 */
.image-intro {
    max-width: 760px;
    margin: 12px 0 0;
    color: var(--muted);
    /* 窄屏按短段落均衡分行，避免最后一两个字形成孤行。 */
    text-wrap: balance;
}

.image-compressor-form > .data-dropzone > .image-upload-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    column-gap: 8px;
}

.image-upload-meta > span {
    /* 两个语义组不可逐字断开；空间不足时按整组换行。 */
    white-space: nowrap;
}

.image-compressor-form {
    margin-top: 24px;
}

/* 原生文件输入保持语义但不可见，焦点必须反馈到用户实际看到的拖放区。 */
.image-compressor-form > .data-dropzone:focus-within {
    outline: 3px solid var(--eye);
    outline-offset: 2px;
}

.image-settings {
    display: grid;
    gap: 20px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.image-algorithm-field,
.image-result-options {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

.image-algorithm-field > legend,
.image-field > label,
.image-field-label label {
    font-weight: 750;
}

.image-algorithm-field > legend {
    margin-bottom: 12px;
}

.image-algorithm-options {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
}

.image-algorithm-option {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    min-width: 0;
    min-height: 76px;
    padding: 12px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 4px;
    cursor: pointer;
}

.image-algorithm-option:has(input:checked) {
    background: var(--surface-soft);
    border-color: var(--forest);
}

.image-algorithm-option:focus-within {
    outline: 3px solid var(--eye);
    outline-offset: 2px;
}

.image-algorithm-option.is-unavailable {
    cursor: not-allowed;
    opacity: 0.5;
}

.image-algorithm-option input {
    flex: 0 0 auto;
    width: 18px;
    height: 18px;
    margin: 2px 0 0;
    accent-color: var(--forest);
}

.image-algorithm-option > span {
    display: grid;
    gap: 3px;
    min-width: 0;
}

.image-algorithm-option strong {
    line-height: 1.35;
}

.image-algorithm-option small,
.image-help {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.5;
}

.image-help {
    margin: 7px 0 0;
}

.image-parameter-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 32px;
}

.image-field {
    display: grid;
    align-content: start;
    gap: 8px;
    min-width: 0;
}

.image-field-label {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
}

.image-field-label output {
    min-width: 3ch;
    color: var(--forest);
    font-weight: 750;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.image-field select {
    min-height: var(--tool-control-height);
    padding: var(--tool-control-padding) 12px;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 4px;
    font: inherit;
    font-size: var(--tool-input-font);
    line-height: 22px;
}

.image-field input[type="range"] {
    width: 100%;
    min-height: var(--tool-control-height);
    margin: 0;
    accent-color: var(--forest);
}

.image-field select:focus-visible,
.image-field input[type="range"]:focus-visible {
    outline: 3px solid var(--eye);
    outline-offset: 2px;
}

.image-field.is-disabled {
    opacity: 0.55;
}

.image-run-all-field {
    display: grid;
    padding-top: 16px;
    border-top: 1px solid var(--line);
}

.image-run-all {
    display: inline-flex;
    align-items: center;
    justify-self: start;
    gap: 9px;
    min-height: 44px;
    cursor: pointer;
    font-weight: 750;
}

.image-run-all input {
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: var(--forest);
}

.image-boundary-note {
    max-width: 820px;
    margin: 14px 0 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.6;
}

.image-result {
    margin-top: 28px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
}

.image-result h2 {
    margin: 0;
    font-size: 21px;
}

.image-result-note {
    margin: 6px 0 16px;
    color: var(--muted);
    font-size: 13px;
}

.image-result-row {
    display: grid;
    grid-template-columns: 24px minmax(190px, 1fr) minmax(180px, 0.8fr) minmax(100px, 0.4fr);
    gap: 12px;
    align-items: center;
    min-height: 64px;
    padding: 8px 12px;
    border-top: 1px solid var(--line);
    cursor: pointer;
}

.image-result-row:last-child {
    border-bottom: 1px solid var(--line);
}

.image-result-row:has(input:checked) {
    background: var(--surface-soft);
}

.image-result-row input {
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: var(--forest);
}

.image-result-identity {
    display: grid;
    gap: 3px;
    min-width: 0;
}

.image-result-identity strong {
    overflow-wrap: anywhere;
}

.image-result-identity > span,
.image-result-size,
.image-result-saving {
    color: var(--muted);
    font-size: 13px;
}

.image-result-size {
    min-width: 0;
    font-variant-numeric: tabular-nums;
}

.image-result-saving {
    text-align: right;
}

.image-best {
    color: var(--forest);
    font-size: 12px;
    font-weight: 750;
    white-space: nowrap;
}

.download-command {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.primary-command:disabled {
    cursor: wait;
    opacity: 0.65;
}

.image-compressor-form > .data-status:empty {
    display: none;
}

.image-compressor-form > .form-actions {
    margin-top: 18px;
}

@media (max-width: 920px) {
    .image-algorithm-options {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .image-result-row {
        grid-template-columns: 24px minmax(0, 1fr) auto;
    }

    .image-result-saving {
        grid-column: 2 / -1;
        text-align: left;
    }
}

@media (max-width: 640px) {
    .image-settings {
        gap: 14px;
        margin-top: 16px;
        padding-top: 16px;
    }

    .image-parameter-grid {
        gap: 16px;
    }

    .image-algorithm-option {
        padding: 10px;
    }

    .image-run-all-field {
        padding-top: 10px;
    }

    .image-result-row {
        grid-template-columns: 24px minmax(0, 1fr);
        align-items: start;
    }

    .image-result-size,
    .image-result-saving {
        grid-column: 2;
        text-align: left;
    }
}

@media (max-width: 359px) {
    .image-algorithm-options,
    .image-parameter-grid {
        grid-template-columns: 1fr;
    }
}