/* 轻量化界面样式 */
:root {
    --color-bg: #f4f6fb;
    --color-card: #ffffff;
    --color-border: #e3e8f0;
    --color-primary: #3251ff;
    --color-primary-hover: #223fe0;
    --color-secondary: #f0f2f8;
    --color-text: #1f2430;
    --color-text-muted: #5b6374;
    --color-success: #1fb981;
    --shadow-card: 0 12px 40px rgba(33, 56, 123, 0.08);
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --font-sans: 'Inter', 'HarmonyOS Sans', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Cascadia Code', monospace;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: linear-gradient(180deg, #f7f9ff 0%, #eef2fb 100%);
    color: var(--color-text);
    font-family: var(--font-sans);
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font: inherit;
    border: none;
    background: none;
    cursor: pointer;
    color: inherit;
}

code {
    font-family: var(--font-mono);
    background: rgba(50, 81, 255, 0.08);
    border-radius: 6px;
    padding: 2px 6px;
    font-size: 0.85em;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.page {
    max-width: 960px;
    margin: 0 auto;
    padding: 40px 20px 60px;
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: #18204d;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.brand-text strong {
    font-size: 18px;
    letter-spacing: 0.3px;
}

.brand-text small {
    font-size: 13px;
    color: var(--color-text-muted);
}

.header-link {
    font-size: 14px;
    color: var(--color-primary);
}

.main {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.hero {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.hero h1 {
    font-size: clamp(26px, 4vw, 34px);
    margin: 0;
}

.hero-subtitle {
    color: var(--color-text-muted);
    font-size: 15px;
    max-width: 720px;
}

.parse-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--color-card);
    padding: 22px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.parse-form.is-loading {
    opacity: 0.7;
    pointer-events: none;
}

.input-group {
    display: flex;
    gap: 12px;
}

.input-group input {
    flex: 1;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    font-size: 16px;
    color: var(--color-text);
    background: #fafbff;
}

.input-group input:focus {
    outline: 2px solid rgba(50, 81, 255, 0.35);
    background: #fff;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-md);
    padding: 12px 18px;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border: 1px solid transparent;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
}

.btn-secondary {
    background: #fff;
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: rgba(50, 81, 255, 0.35);
    color: var(--color-primary);
}

.btn-tertiary {
    background: var(--color-secondary);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.btn-tertiary:hover {
    color: var(--color-primary);
    border-color: rgba(50, 81, 255, 0.3);
}

.form-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.form-tip {
    margin: 0;
    font-size: 13px;
    color: var(--color-text-muted);
}

.section-header {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 18px;
}

.section-header h2 {
    margin: 0;
    font-size: 20px;
}

.section-header p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 14px;
}

.section-header.with-action {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.link-button {
    font-size: 14px;
    color: var(--color-text-muted);
    text-decoration: underline;
}

.result-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    min-height: 180px;
}

.result-placeholder {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 15px;
    display: grid;
    gap: 6px;
    place-items: center;
}

.result-placeholder-tip {
    font-size: 13px;
    color: var(--color-text-muted);
}

.result-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(50, 81, 255, 0.1);
    color: var(--color-primary);
    font-size: 13px;
}

.result-time {
    font-size: 13px;
    color: var(--color-text-muted);
}

.result-title {
    margin: 0;
    font-size: 20px;
}

.result-cover {
    width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    max-height: 280px;
    object-fit: cover;
}

.result-block {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.result-block h4 {
    margin: 0;
    font-size: 15px;
    color: var(--color-text-muted);
}

.result-text {
    margin: 0;
    background: #f7f8fd;
    border-radius: var(--radius-sm);
    padding: 12px;
    font-size: 14px;
    color: var(--color-text);
    word-break: break-word;
}

.result-link {
    font-size: 14px;
    color: var(--color-primary);
    word-break: break-all;
}

.result-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
}

.gallery-thumb {
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--color-border);
    display: block;
}

.gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.result-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.result-hint {
    margin: 0;
    font-size: 13px;
    color: var(--color-text-muted);
}

.result-error {
    display: grid;
    gap: 12px;
    text-align: center;
    color: var(--color-text-muted);
}

.result-loading {
    text-align: center;
    color: var(--color-text-muted);
    display: grid;
    gap: 10px;
    place-items: center;
}

.spinner {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 3px solid rgba(50, 81, 255, 0.15);
    border-top-color: var(--color-primary);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.history-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.history-empty {
    text-align: center;
    font-size: 14px;
    color: var(--color-text-muted);
    padding: 18px 0;
}

.history-item {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 12px;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    box-shadow: var(--shadow-card);
}

.history-item button {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    background: none;
    border: none;
    padding: 0;
    text-align: left;
}

.history-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
}

.history-meta {
    font-size: 12px;
    color: var(--color-text-muted);
    display: flex;
    gap: 10px;
}

.history-open {
    color: var(--color-primary);
    font-size: 18px;
}

.tips-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
    font-size: 14px;
    color: var(--color-text-muted);
}

.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: var(--color-text-muted);
}

.footer a {
    color: var(--color-primary);
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%) translateY(40px);
    background: #18204d;
    color: #fff;
    padding: 12px 24px;
    border-radius: 999px;
    box-shadow: 0 18px 40px rgba(24, 32, 77, 0.3);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    font-size: 14px;
    z-index: 10;
}

.toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast[data-type="success"] {
    background: var(--color-success);
}

.toast[data-type="warning"] {
    background: #f79009;
}

.toast[data-type="error"] {
    background: #ef4444;
}

@media (max-width: 720px) {
    .page {
        padding: 32px 16px 48px;
        gap: 36px;
    }

    .input-group {
        flex-direction: column;
    }

    .btn,
    .input-group input {
        width: 100%;
    }

    .form-tools {
        flex-direction: column;
        align-items: stretch;
    }

    .history-item {
        grid-template-columns: 1fr;
    }

    .footer {
        flex-direction: column;
        gap: 6px;
        text-align: center;
    }
}