/* ===== 免费 API 全屏页 ===== */
body.simple-page.free-api-layout {
    display: block;
    min-height: 100vh;
    position: relative;
}

body.simple-page.free-api-layout #footer {
    margin-top: 0;
    position: relative;
    z-index: 1;
}

body.simple-page.free-api-layout .page-bg,
body.simple-page.free-api-layout .ink-mist {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.free-api-fullpage {
    width: 100%;
    min-height: calc(100vh - 56px);
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

.free-api-page-header {
    flex-shrink: 0;
    width: 100%;
    padding: 32px 24px 24px;
    text-align: center;
    background: var(--color-paper);
    border-bottom: var(--border-ink-light);
    box-shadow: 0 2px 12px rgba(28, 28, 28, 0.04);
}

.free-api-page-header h1 {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    color: var(--color-ink);
    letter-spacing: 0.08em;
    font-weight: 400;
}

.free-api-page-header .free-api-subtitle {
    margin: 10px 0 0;
    font-family: var(--font-kai);
    color: var(--color-ink-muted);
    font-size: 1rem;
}

.free-api-page-main {
    flex: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 28px 16px 40px;
    box-sizing: border-box;
}

.free-api-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 20px;
}

.free-api-page-main h2 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    color: var(--color-ink);
    margin: 0;
    letter-spacing: 0.06em;
}

.free-api-filter-dropdown {
    position: relative;
}

.filter-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    min-height: 36px;
}

.filter-toggle.is-open {
    background: var(--color-cinnabar);
    border-color: var(--color-cinnabar);
    color: #fff;
}

.filter-toggle-badge {
    font-size: 0.72rem;
    padding: 1px 7px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.22);
    color: inherit;
}

.filter-toggle-icon {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-fast);
}

.filter-toggle.is-open .filter-toggle-icon {
    transform: rotate(180deg);
}

.filter-panel {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    z-index: 40;
    width: min(420px, calc(100vw - 32px));
    max-height: min(70vh, 560px);
    overflow: auto;
    padding: 16px;
    border: 1px solid var(--color-border);
    border-radius: 14px;
    background: var(--color-paper);
    box-shadow: 0 12px 36px rgba(28, 28, 28, 0.14);
}

.filter-section + .filter-section {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px dashed var(--color-border);
}

.filter-section-title {
    margin: 0 0 10px;
    font-family: var(--font-kai);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--color-ink-muted);
    letter-spacing: 0.04em;
}

.filter-option-group {
    display: grid;
    gap: 6px;
}

.filter-radio {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-kai);
    font-size: 0.86rem;
    color: var(--color-ink);
    cursor: pointer;
}

.filter-radio input {
    accent-color: var(--color-cinnabar);
}

.filter-pill-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-pill {
    padding: 5px 12px;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: var(--color-paper-warm);
    color: var(--color-ink-muted);
    font-family: var(--font-kai);
    font-size: 0.8rem;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.filter-pill:hover {
    border-color: var(--color-cinnabar);
    color: var(--color-cinnabar);
}

.filter-pill.is-active {
    background: var(--color-cinnabar);
    border-color: var(--color-cinnabar);
    color: #fff;
}

.filter-panel-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px dashed var(--color-border);
}

.filter-reset-btn {
    padding: 6px 14px;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: transparent;
    color: var(--color-ink-muted);
    font-family: var(--font-kai);
    font-size: 0.82rem;
    cursor: pointer;
}

.filter-reset-btn:hover {
    border-color: var(--color-cinnabar);
    color: var(--color-cinnabar);
}

.filter-result-count {
    font-family: var(--font-kai);
    font-size: 0.8rem;
    color: var(--color-ink-muted);
}

.filter-btn {
    padding: 6px 14px;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: var(--color-paper-warm);
    color: var(--color-ink-muted);
    font-family: var(--font-kai);
    font-size: 0.85rem;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--color-cinnabar);
    color: var(--color-cinnabar);
}

.filter-btn.is-active {
    background: var(--color-cinnabar);
    border-color: var(--color-cinnabar);
    color: #fff;
}

.free-api-model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    align-items: stretch;
}

.free-api-model-card {
    text-align: left;
    background: var(--color-paper-warm);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius-lg);
    padding: 18px 18px 14px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
    box-shadow: var(--shadow-paper);
    display: flex;
    flex-direction: column;
}

.free-api-model-card[hidden],
.free-api-model-card.is-filtered-out {
    display: none !important;
}

.free-api-model-card.reveal {
    opacity: 0;
}

.free-api-model-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-paper-hover);
    border-color: rgba(139, 58, 58, 0.3);
}

.free-api-model-card.is-active {
    border-color: var(--color-cinnabar);
    box-shadow: 0 0 0 2px rgba(139, 58, 58, 0.15), var(--shadow-paper-hover);
}

.free-api-model-card.is-last-used:not(.is-active) {
    border-color: rgba(201, 168, 76, 0.55);
}

.model-card-body {
    flex: 1;
    min-height: 0;
}

.model-card-footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--color-border);
}

.free-api-test-btn {
    display: inline-flex;
    align-items: center;
    padding: 9px 16px;
    border: 1.5px solid rgba(28, 28, 28, 0.22);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--color-ink);
    font-family: var(--font-kai);
    font-size: 0.88rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.free-api-test-btn:hover:not(:disabled) {
    background: #fff;
    border-color: var(--color-cinnabar);
    color: var(--color-cinnabar);
    transform: translateY(-1px);
}

.free-api-test-btn:disabled {
    opacity: 0.65;
    cursor: wait;
}

.model-test-result {
    margin-top: 10px;
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
    line-height: 1.45;
    font-family: var(--font-kai);
}

.model-test-result.is-running {
    background: rgba(28, 28, 28, 0.05);
    color: var(--color-ink-muted);
    border: 1px dashed var(--color-border);
}

.model-test-result.is-ok {
    background: rgba(46, 125, 50, 0.1);
    color: #2e7d32;
    border: 1px solid rgba(46, 125, 50, 0.22);
}

.model-test-result.is-fail {
    background: rgba(184, 50, 50, 0.08);
    color: var(--color-cinnabar);
    border: 1px solid rgba(184, 50, 50, 0.2);
}

.model-test-result.is-skip {
    background: rgba(61, 107, 138, 0.1);
    color: #3d6b8a;
    border: 1px solid rgba(61, 107, 138, 0.22);
}

.dp-key-picker {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 10px;
}

.dp-key-picker-label,
.config-key-row .config-label {
    font-size: 0.78rem;
    color: var(--color-ink-muted);
    font-family: var(--font-kai);
}

.dp-key-select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.85);
    color: var(--color-ink);
    font-family: var(--font-kai);
    font-size: 0.82rem;
}

.dp-key-select--modal {
    max-width: 100%;
}

.config-key-row {
    margin-bottom: 12px;
}

.model-card-top {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 10px;
}

.model-tier {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.tier-s .model-tier {
    background: linear-gradient(135deg, #8b6914, #d4af37);
    color: #fff8e7;
}

.tier-aplus .model-tier {
    background: linear-gradient(135deg, #d94a4a 0%, var(--color-cinnabar) 100%);
    color: #fff8f0;
    box-shadow: 0 1px 4px rgba(184, 50, 50, 0.35);
}

.tier-a .model-tier {
    background: var(--color-ink);
    color: var(--color-gold);
}

.tier-aminus .model-tier {
    background: var(--color-ink-muted);
    color: #fff;
}

.tier-bplus .model-tier {
    background: linear-gradient(135deg, #3d6b8a 0%, #2a4f6e 100%);
    color: #e8f4fc;
    box-shadow: 0 1px 4px rgba(42, 79, 110, 0.35);
}

.tier-b .model-tier {
    background: rgba(28, 28, 28, 0.12);
    color: var(--color-ink-muted);
    border: 1px solid rgba(28, 28, 28, 0.18);
}

.model-provider {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    background: rgba(184, 50, 50, 0.1);
    color: var(--color-cinnabar);
    border: 1px solid rgba(184, 50, 50, 0.22);
}

.model-tagline {
    font-size: 0.82rem;
    color: var(--color-ink-muted);
}

.model-name {
    margin: 0 0 8px;
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--color-ink);
}

.model-summary,
.model-caveat {
    margin: 0 0 10px;
    font-size: 0.9rem;
    line-height: 1.65;
    color: var(--color-ink);
}

.model-summary {
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.model-caveat {
    color: var(--color-cinnabar);
    font-size: 0.84rem;
}

.model-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}

.model-spec {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.05);
    color: var(--color-ink-muted);
}

.model-slug-details {
    margin-top: 4px;
}

.model-slug-details summary {
    font-size: 0.78rem;
    color: var(--color-ink-muted);
    cursor: pointer;
    font-family: var(--font-kai);
    list-style: none;
}

.model-slug-details summary::-webkit-details-marker {
    display: none;
}

.model-slug-details summary::before {
    content: "▸ ";
    color: var(--color-cinnabar);
}

.model-slug-details[open] summary::before {
    content: "▾ ";
}

.model-slug {
    display: block;
    font-size: 0.72rem;
    color: var(--color-ink-muted);
    word-break: break-all;
    background: rgba(0, 0, 0, 0.04);
    padding: 6px 8px;
    border-radius: 4px;
    margin-top: 6px;
}

.free-api-get-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border: 2px solid #E8D5A0;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--color-cinnabar-light) 0%, var(--color-cinnabar) 100%);
    color: #fff;
    font-family: var(--font-kai);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(184, 50, 50, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.08) inset;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.free-api-get-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 22px rgba(184, 50, 50, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.12) inset;
    background: linear-gradient(135deg, #e85d5d 0%, #c94040 100%);
}

.free-api-get-btn:active {
    transform: translateY(0);
}

.free-api-get-btn-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* ===== 弹窗流程 ===== */
.free-api-flow-popup {
    width: min(520px, 94vw);
}

.flow-steps {
    display: flex;
    gap: 12px;
    list-style: none;
    margin: 14px 0 0;
    padding: 0;
    font-family: var(--font-kai);
    font-size: 0.82rem;
}

.flow-step-indicator {
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.05);
    color: var(--color-ink-muted);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.flow-step-indicator.is-active {
    background: var(--color-cinnabar);
    color: #fff;
}

.flow-step-indicator.is-done {
    background: rgba(139, 58, 58, 0.12);
    color: var(--color-cinnabar);
}

.flow-step[hidden] {
    display: none !important;
}

.flow-step-enter {
    animation: flowStepIn 0.28s ease forwards;
}

.flow-step-success {
    text-align: center;
    padding: 24px 0;
}

.success-message {
    margin: 0;
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--color-cinnabar);
    letter-spacing: 0.06em;
}

@keyframes flowStepIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes captchaShake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

.captcha-row.shake {
    animation: captchaShake 0.4s ease;
}

.config-notice {
    margin: 0 0 16px;
    padding: 10px 12px;
    background: rgba(139, 58, 58, 0.08);
    border-left: 3px solid var(--color-cinnabar);
    font-size: 0.88rem;
    line-height: 1.6;
    font-family: var(--font-kai);
}

.config-loading,
.config-error {
    margin: 0;
    padding: 12px;
    font-family: var(--font-kai);
    font-size: 0.9rem;
    text-align: center;
}

.config-loading {
    color: var(--color-ink-muted);
}

.config-error {
    color: var(--color-cinnabar);
    background: rgba(184, 50, 50, 0.08);
    border-radius: 8px;
}

.config-form {
    display: grid;
    gap: 16px;
}

.config-field {
    display: block;
}

.config-label {
    display: block;
    font-size: 0.84rem;
    color: var(--color-ink-muted);
    margin-bottom: 6px;
    font-family: var(--font-kai);
}

.config-input-row {
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    align-items: stretch;
}

.config-input-row input {
    flex: 1;
    min-width: 0;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    font-size: 0.88rem;
    font-family: var(--font-body);
    background: #fff;
    color: var(--color-ink);
}

.config-input-row input:focus {
    outline: none;
    border-color: var(--color-cinnabar);
    box-shadow: 0 0 0 2px rgba(139, 58, 58, 0.12);
}

.captcha-box {
    max-width: 100%;
}

.captcha-question {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin: 0 0 12px;
    color: var(--color-ink);
}

.captcha-row {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
}

.captcha-row input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    font-size: 1rem;
    background: #fff;
}

.captcha-refresh {
    width: 44px;
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    background: var(--color-paper-warm);
    cursor: pointer;
    font-size: 1.2rem;
}

.captcha-error {
    margin-top: 10px;
    color: var(--color-cinnabar);
    font-size: 0.9rem;
}

.free-api-primary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 22px;
    border-radius: 999px;
    font-family: var(--font-kai);
    font-weight: 600;
    cursor: pointer;
    border: 2px solid var(--color-cinnabar);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    background: linear-gradient(135deg, #a63d3d 0%, var(--color-cinnabar) 100%);
    color: #fff;
    box-shadow: 0 3px 12px rgba(139, 58, 58, 0.28);
}

.free-api-primary-btn:hover:not(:disabled) {
    transform: translateY(-1px);
}

.free-api-primary-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.copy-btn,
.toggle-key-btn {
    flex-shrink: 0;
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: #fff;
    cursor: pointer;
    font-size: 0.82rem;
    font-family: var(--font-kai);
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.copy-btn.is-copied,
.toggle-key-btn.is-copied {
    background: #e8f5e9;
    border-color: #4caf50;
    color: #2e7d32;
}

.toggle-key-btn {
    color: var(--color-ink-muted);
}

@media (max-width: 599px) {
    .free-api-model-grid {
        grid-template-columns: 1fr;
    }

    .model-card-footer {
        justify-content: stretch;
    }

    .free-api-get-btn {
        width: 100%;
        justify-content: center;
    }

    .config-input-row {
        overflow-x: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    .free-api-model-card.reveal,
    .flow-step-enter,
    .captcha-row.shake {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
}