:root {
    --bg-gradient: linear-gradient(135deg, #1a1a1e 0%, #252530 50%, #1e1e24 100%);
    --acrylic-bg: rgba(45, 45, 55, 0.55);
    --acrylic-border: rgba(255, 255, 255, 0.06);
    --acrylic-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --acrylic-blur: blur(16px);

    --text-primary: #e8e8ec;
    --text-secondary: #9898a8;
    --text-muted: #6a6a7a;

    --accent: #7c7c9a;
    --accent-hover: #9696b4;
    --accent-glow: rgba(124, 124, 154, 0.15);

    --card-radius: 16px;
    --btn-radius: 10px;
    --input-radius: 12px;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
                 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    background: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
}

.acrylic {
    background: var(--acrylic-bg);
    backdrop-filter: var(--acrylic-blur);
    -webkit-backdrop-filter: var(--acrylic-blur);
    border: 1px solid var(--acrylic-border);
    box-shadow: var(--acrylic-shadow);
    border-radius: var(--card-radius);
}

.container {
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

.home-top {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 60px 0 30px;
    transition: padding 0.6s ease;
}

.home-top.has-result {
    padding: 30px 0;
}

.home-header {
    text-align: center;
    margin-bottom: 36px;
}

.site-title {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: 2px;
    background: linear-gradient(135deg, #c0c0d0, #8888aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.site-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 10px;
}

.home-top.has-result .search-wrapper.shifted {
    margin-top: 0;
}

.home-top.has-result .home-header {
    display: none;
}

.search-wrapper {
    width: 100%;
    max-width: 680px;
    transition: all var(--transition);
    position: relative;
}

.search-box {
    display: flex;
    align-items: center;
    background: rgba(50, 50, 62, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--acrylic-border);
    border-radius: var(--input-radius);
    padding: 4px;
    transition: all var(--transition);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.search-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 4px 30px var(--accent-glow), inset 0 0 0 1px rgba(124, 124, 154, 0.1);
}

.search-box .search-icon {
    padding: 0 12px 0 16px;
    color: var(--text-muted);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.search-box input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 1rem;
    padding: 14px 4px;
    font-family: inherit;
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-box button {
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: calc(var(--input-radius) - 4px);
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    font-family: inherit;
}

.search-box button:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 20px var(--accent-glow);
}

.search-box button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.search-wrapper.shifted {
    margin-top: 10px;
}

.result-section {
    display: none;
    width: 100%;
    margin-top: 30px;
    animation: fadeInUp 0.5s ease;
}

.result-section.active {
    display: block;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.loading-card {
    display: none;
    align-items: center;
    justify-content: center;
    padding: 40px;
    gap: 14px;
}

.loading-card.active {
    display: flex;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(255, 255, 255, 0.05);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-card span {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.server-card {
    display: none;
    width: 100%;
    padding: 28px;
    transition: all var(--transition);
}

.server-card.active {
    display: block;
}

.server-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
    position: relative;
}

.server-icon {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--acrylic-border);
    overflow: hidden;
}

.server-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.server-icon .no-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--text-muted);
}

.server-info {
    flex: 1;
    min-width: 0;
}

.server-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.4;
    word-break: break-word;
}

.server-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
    line-height: 1.5;
    word-break: break-word;
}

.server-players {
    text-align: right;
    flex-shrink: 0;
    margin-left: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.player-row {
    white-space: nowrap;
}

.server-players .online {
    font-size: 1.4rem;
    font-weight: 700;
    color: #7fc97f;
    line-height: 1;
}

.server-players .max {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.server-players .label {
    font-size: 0.68rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-top: 3px;
}

.server-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.detail-item {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    padding: 12px 14px;
    transition: background var(--transition);
}

.detail-item:hover {
    background: rgba(255, 255, 255, 0.06);
}

.detail-item .label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.detail-item .value {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

.detail-item .value.good {
    color: #7fc97f;
}

.detail-item .value.warn {
    color: #e8b84a;
}

.detail-item .value.bad {
    color: #e85555;
}

.player-list {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.player-list .player-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.player-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.player-item {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 6px;
    padding: 4px 10px 4px 4px;
    font-size: 0.8rem;
}

.player-item .player-avatar {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    background: #333;
}

.player-item .player-name {
    color: var(--text-secondary);
}

.motd-preview {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.motd-preview .motd-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.motd-preview .motd-content {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 12px 16px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    word-break: break-word;
    min-height: 40px;
}

.error-card {
    display: none;
    text-align: center;
    padding: 40px 28px;
}

.error-card.active {
    display: block;
}

.error-card .error-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
    opacity: 0.6;
}

.error-card .error-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.error-card .error-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.footer {
    width: 100%;
    text-align: center;
    padding: 40px 20px 30px;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.footer a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition);
}

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

.copyright {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.copyright a {
    color: var(--text-primary);
    font-weight: 700;
    text-decoration: none;
    transition: color var(--transition);
}

.copyright a:hover {
    color: var(--accent);
    text-decoration: underline;
}

.copyright-divider {
    margin: 0 8px;
    color: var(--text-muted);
    font-weight: 300;
}

.copyright-text {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.copyright-notice {
    margin-top: 8px;
    font-size: 0.72rem;
    color: rgba(106, 106, 122, 0.6);
    line-height: 1.6;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.footer-meta {
    margin-top: 10px;
    font-size: 0.72rem;
    color: rgba(106, 106, 122, 0.4);
}

.footer-nav {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.footer-nav-link {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all var(--transition);
}

.footer-nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.footer-nav-divider {
    color: rgba(106, 106, 122, 0.3);
    font-size: 0.7rem;
}

.doc-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 30px 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    margin-bottom: 30px;
}

.doc-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 10px;
    background: var(--acrylic-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--acrylic-border);
    transition: all var(--transition);
    flex-shrink: 0;
    font-size: 0.9rem;
}

.doc-back:hover {
    color: var(--text-primary);
    border-color: var(--accent);
    box-shadow: 0 0 16px var(--accent-glow);
}

.doc-back-arrow {
    font-size: 1.1rem;
}

.doc-title-area {
    flex: 1;
}

.doc-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.doc-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.doc-body {
    padding-bottom: 40px;
}

.doc-section {
    margin-bottom: 32px;
}

.doc-section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 14px;
    padding-left: 12px;
    border-left: 3px solid var(--accent);
}

.doc-card {
    background: var(--acrylic-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--acrylic-border);
    border-radius: var(--card-radius);
    padding: 20px 24px;
    box-shadow: var(--acrylic-shadow);
    overflow: hidden;
}

.doc-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 8px;
}

.doc-card p:last-child {
    margin-bottom: 0;
}

.doc-code {
    background: rgba(0, 0, 0, 0.35);
    border-radius: 8px;
    padding: 16px;
    overflow-x: auto;
    font-size: 0.82rem;
    line-height: 1.6;
    font-family: 'Courier New', 'Consolas', monospace;
    color: #c9d1d9;
    white-space: pre;
    margin: 0;
}

.doc-code code {
    background: none;
    padding: 0;
    font-size: inherit;
}

code {
    background: rgba(0, 0, 0, 0.25);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.82rem;
    font-family: 'Courier New', 'Consolas', monospace;
    color: #c9d1d9;
}

.doc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.doc-table th,
.doc-table td {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.doc-table th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.doc-table td {
    color: var(--text-secondary);
    vertical-align: top;
}

.doc-table tr:last-child td {
    border-bottom: none;
}

.doc-table .doc-label {
    color: var(--text-muted);
    font-size: 0.8rem;
    white-space: nowrap;
    width: 100px;
}

.doc-table .doc-value {
    color: var(--text-primary);
}

.tag-required {
    color: #e85555 !important;
    font-weight: 600;
}

.doc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.doc-list li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
    padding: 4px 0 4px 18px;
    position: relative;
}

.doc-list li::before {
    content: '·';
    position: absolute;
    left: 4px;
    color: var(--accent);
    font-weight: 700;
}

.doc-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 10px;
    line-height: 1.6;
}

.doc-note a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

.doc-note a:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

.doc-warning {
    color: #e8b84a !important;
    font-size: 0.82rem;
}

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 20px;
    border-radius: 10px;
    background: rgba(45, 45, 55, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--acrylic-border);
    color: var(--text-primary);
    font-size: 0.85rem;
    z-index: 2000;
    animation: toastIn 0.3s ease;
    max-width: 340px;
    box-shadow: var(--acrylic-shadow);
}

.toast.error {
    border-color: rgba(232, 85, 85, 0.3);
}

.toast.success {
    border-color: rgba(127, 201, 127, 0.3);
}

@keyframes toastIn {
    from { transform: translateX(30px); opacity: 0; }
    to   { transform: translateX(0); opacity: 1; }
}

@media (max-width: 1024px) {
    .container {
        padding: 0 24px;
    }

    .server-details {
        grid-template-columns: 1fr 1fr;
    }

    .doc-header {
        gap: 16px;
    }

    .doc-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .doc-code {
        overflow-x: auto;
    }

    .home-top {
        padding: 44px 0 24px;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 16px;
    }

    .home-top {
        padding: 32px 0 16px;
    }

    .home-header {
        margin-bottom: 24px;
    }

    .site-title {
        font-size: 1.4rem;
    }

    .site-subtitle {
        font-size: 0.8rem;
        margin-top: 8px;
    }

    .search-box {
        flex-direction: column;
        background: transparent;
        box-shadow: none;
        border: none;
        padding: 0;
    }

    .search-box .search-icon {
        display: none;
    }

    .search-box input {
        background: rgba(50, 50, 62, 0.6);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--acrylic-border);
        border-radius: var(--input-radius);
        padding: 14px 16px;
        width: 100%;
        font-size: 16px;
    }

    .search-box button {
        width: 100%;
        margin-top: 8px;
        padding: 12px;
        font-size: 0.9rem;
    }

    .server-header {
        flex-wrap: wrap;
        gap: 10px;
    }

    .server-icon {
        width: 48px;
        height: 48px;
    }

    .server-name {
        font-size: 0.95rem;
    }

    .server-description {
        font-size: 0.78rem;
    }

    .server-players {
        text-align: right;
        margin-top: 0;
        margin-left: auto;
    }

    .server-players .online {
        font-size: 1.1rem;
    }

    .server-players .label {
        font-size: 0.6rem;
        margin-top: 2px;
    }

    .server-card {
        padding: 20px;
    }

    .server-details {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .detail-item {
        padding: 10px 8px;
    }

    .detail-item .label {
        font-size: 0.65rem;
    }

    .detail-item .value {
        font-size: 0.82rem;
    }

    .motd-preview .motd-content {
        font-size: 0.78rem;
        padding: 10px 12px;
    }

    .doc-card {
        padding: 20px;
        width: 94%;
    }

    .doc-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        padding: 20px 0 16px;
    }

    .doc-title {
        font-size: 1.2rem;
    }

    .doc-subtitle {
        font-size: 0.78rem;
    }

    .doc-section-title {
        font-size: 0.95rem;
    }

    .doc-card {
        padding: 14px;
    }

    .doc-card p {
        font-size: 0.8rem;
    }

    .doc-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .doc-table th,
    .doc-table td {
        padding: 6px 8px;
        font-size: 0.72rem;
    }

    .doc-table .doc-label {
        width: auto;
    }

    .doc-code {
        font-size: 0.7rem;
        padding: 10px;
        overflow-x: auto;
    }

    .doc-list li {
        font-size: 0.8rem;
    }

    .footer {
        padding: 24px 16px 20px;
    }

    .footer-nav {
        gap: 6px;
        font-size: 0.75rem;
    }

    .copyright {
        font-size: 0.78rem;
    }

    .copyright-notice {
        font-size: 0.65rem;
    }
}