/* 济南就业参考 - 重新设计 */

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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --radius: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --transition: 0.2s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main.container {
    flex: 1;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== Header ========== */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 32px 0;
    position: relative;
}

.header-inner {
    text-align: center;
}

.logo {
    font-size: 26px;
    font-weight: 700;
    color: var(--gray-900);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.02em;
}

.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--primary);
    flex-shrink: 0;
}

.tagline {
    margin-top: 6px;
    color: var(--gray-500);
    font-size: 15px;
    font-weight: 400;
}

/* GitHub Corner */
.github-corner {
    position: absolute;
    top: 0;
    right: 0;
    color: var(--gray-400);
    transition: color var(--transition);
    z-index: 10;
}
.github-corner:hover { color: var(--gray-600); }
.github-corner svg { display: block; }

/* ========== Search ========== */
.search-section {
    margin: 24px auto 28px;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.search-icon {
    width: 20px;
    height: 20px;
    color: var(--gray-400);
    margin-left: 16px;
    flex-shrink: 0;
}

.search-box input {
    flex: 1;
    padding: 14px 12px;
    font-size: 15px;
    border: none;
    outline: none;
    background: transparent;
    color: var(--gray-800);
}

.search-box input::placeholder {
    color: var(--gray-400);
}

.search-box button {
    padding: 14px 28px;
    font-size: 14px;
    font-weight: 500;
    background: var(--primary);
    color: var(--white);
    border: none;
    cursor: pointer;
    transition: background var(--transition);
}

.search-box button:hover {
    background: var(--primary-dark);
}

.search-stats {
    margin-top: 12px;
    text-align: center;
    color: var(--gray-500);
    font-size: 13px;
}

/* ========== Tabs ========== */
.tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--gray-200);
    padding-bottom: 0;
}

.tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 500;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    color: var(--gray-500);
    transition: all var(--transition);
    margin-bottom: -1px;
}

.tab svg {
    width: 16px;
    height: 16px;
}

.tab:hover {
    color: var(--gray-700);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* ========== Posts List ========== */
.posts-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.post-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px 24px;
    border: 1px solid var(--gray-200);
    cursor: pointer;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.post-card:hover {
    border-color: var(--gray-300);
    box-shadow: var(--shadow-md);
}

.post-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 8px;
}

.post-company {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
    line-height: 1.4;
}

.post-date {
    font-size: 13px;
    color: var(--gray-400);
    white-space: nowrap;
    flex-shrink: 0;
}

.post-content {
    color: var(--gray-500);
    font-size: 14px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 12px;
}

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

.post-author {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--gray-500);
}

.post-author a {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
}

.post-author a:hover {
    color: var(--primary);
}

.author-avatar {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--gray-100);
}

.post-stats {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--gray-400);
}

.post-stats .stat {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.post-stats svg {
    width: 14px;
    height: 14px;
}

/* ========== Companies List ========== */
.companies-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 12px;
}

.company-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 18px 20px;
    border: 1px solid var(--gray-200);
    cursor: pointer;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.company-card:hover {
    border-color: var(--gray-300);
    box-shadow: var(--shadow-md);
}

.company-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-800);
}

/* ========== Loading ========== */
.loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-400);
}

.spinner {
    width: 32px;
    height: 32px;
    border: 2.5px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 12px;
}

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

/* ========== Pagination ========== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.pagination button {
    padding: 8px 14px;
    font-size: 13px;
    border: 1px solid var(--gray-200);
    background: var(--white);
    border-radius: 8px;
    cursor: pointer;
    color: var(--gray-600);
    transition: all var(--transition);
}

.pagination button:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination button.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination .ellipsis {
    padding: 0 6px;
    color: var(--gray-400);
    font-size: 13px;
}

/* ========== Modal ========== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    z-index: 1000;
    padding: 20px;
    overflow-y: auto;
}

.modal.show {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 720px;
    margin: 40px 0;
    position: relative;
    animation: modalIn 0.25s ease;
    box-shadow: var(--shadow-lg);
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(12px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: var(--gray-500);
    transition: all var(--transition);
    z-index: 10;
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-700);
}

.modal-close svg {
    width: 18px;
    height: 18px;
}

.modal-body {
    padding: 32px;
}

.modal-company {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
    padding-right: 48px;
    line-height: 1.3;
}

.modal-author {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    padding: 6px 12px 6px 6px;
    background: var(--gray-50);
    border-radius: 20px;
    font-size: 13px;
    color: var(--gray-600);
    text-decoration: none;
    border: 1px solid var(--gray-200);
    transition: border-color var(--transition);
}

.modal-author:hover {
    border-color: var(--primary);
}

.modal-author img {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--gray-200);
}

.modal-author span {
    font-weight: 500;
}

.modal-address {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--gray-500);
    margin-bottom: 20px;
    font-size: 14px;
}

.modal-address svg {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
}

.modal-content-text {
    line-height: 1.8;
    white-space: pre-wrap;
    font-size: 15px;
    color: var(--gray-700);
}

.modal-replies {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

.modal-replies h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 6px;
}

.modal-replies h3 svg {
    width: 16px;
    height: 16px;
    color: var(--gray-400);
}

.reply-item {
    background: var(--gray-50);
    padding: 14px 16px;
    border-radius: 8px;
    margin-bottom: 8px;
    border: 1px solid var(--gray-100);
}

.reply-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.reply-author-avatar {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--gray-200);
}

.reply-author-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-600);
}

.reply-content {
    font-size: 14px;
    line-height: 1.6;
    color: var(--gray-700);
}

.reply-time {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 6px;
}

/* ========== Comments (Giscus) ========== */
.modal-comments {
    padding: 0 32px 32px;
}

.giscus-wrapper {
    border-top: 1px solid var(--gray-200);
    padding-top: 24px;
}

.comments-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 6px;
}

.comments-title svg {
    width: 16px;
    height: 16px;
    color: var(--gray-400);
}

.comments-hint {
    font-size: 13px;
    color: var(--gray-400);
    margin-bottom: 16px;
}

.giscus {
    min-height: 150px;
}

/* Skeleton */
.giscus-skeleton {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: var(--gray-50);
    border-radius: 8px;
    margin-bottom: 12px;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.skeleton-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gray-200);
    flex-shrink: 0;
}

.skeleton-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skeleton-line {
    height: 12px;
    border-radius: 4px;
    background: var(--gray-200);
}
.skeleton-line-short { width: 30%; }
.skeleton-line-medium { width: 60%; }

/* ========== FAB ========== */
.fab {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 52px;
    height: 52px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(37,99,235,0.3);
    transition: all var(--transition);
    z-index: 100;
}

.fab svg {
    width: 22px;
    height: 22px;
}

.fab:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37,99,235,0.4);
}

.fab-help {
    bottom: 90px;
    background: var(--gray-700);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.fab-help:hover {
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.fab-theme {
    bottom: 152px;
}

/* ========== Footer ========== */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 36px 0;
    margin-top: 40px;
    text-align: center;
    font-size: 13px;
}

.footer p {
    margin-bottom: 8px;
}

.disclaimer {
    color: var(--gray-500);
    font-size: 12px;
}

.github-link a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color var(--transition);
}

.github-link a:hover {
    color: var(--white);
}

/* ========== Theme Toggle FAB ========== */
.fab-theme {
    bottom: 152px;
    background: var(--gray-600);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border: none;
    color: var(--white);
    cursor: pointer;
}

.fab-theme:hover {
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

/* Sun/Moon icon visibility */
.fab-theme .icon-moon { display: none; }
.fab-theme .icon-sun { display: block; }
[data-theme="dark"] .fab-theme .icon-moon { display: block; }
[data-theme="dark"] .fab-theme .icon-sun { display: none; }

/* ========== Dark Theme ========== */
[data-theme="dark"] {
    --gray-50: #0f1117;
    --gray-100: #1a1d27;
    --gray-200: #2a2d3a;
    --gray-300: #3a3d4a;
    --gray-400: #6b7280;
    --gray-500: #9ca3af;
    --gray-600: #d1d5db;
    --gray-700: #e5e7eb;
    --gray-800: #f3f4f6;
    --gray-900: #f9fafb;
    --white: #1e2130;
    --primary: #60a5fa;
    --primary-dark: #93bbfd;
    --primary-light: #1e3a5f;
}

[data-theme="dark"] .header {
    background: #1a1d27;
    border-bottom-color: #2a2d3a;
}

[data-theme="dark"] .footer {
    background: #0a0c12;
    color: #6b7280;
}

[data-theme="dark"] .modal {
    background: rgba(0,0,0,0.6);
}

[data-theme="dark"] .modal-content {
    background: #1a1d27;
}

[data-theme="dark"] .modal-author {
    background: #0f1117;
    border-color: #2a2d3a;
}

[data-theme="dark"] .reply-item {
    background: #0f1117;
    border-color: #1a1d27;
}

[data-theme="dark"] .giscus-skeleton {
    background: #0f1117;
}

[data-theme="dark"] .skeleton-avatar,
[data-theme="dark"] .skeleton-line {
    background: #2a2d3a;
}

[data-theme="dark"] .fab {
    background: #60a5fa;
    box-shadow: 0 4px 12px rgba(96,165,250,0.3);
}

[data-theme="dark"] .fab:hover {
    box-shadow: 0 6px 20px rgba(96,165,250,0.4);
}

[data-theme="dark"] .fab-help {
    background: #4b5563;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

[data-theme="dark"] .fab-theme {
    background: #4b5563;
}

[data-theme="dark"] .github-corner {
    color: #6b7280;
}

[data-theme="dark"] .search-box:focus-within {
    box-shadow: 0 0 0 3px rgba(96,165,250,0.15);
}

/* ========== Utilities ========== */
.hidden {
    display: none !important;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .header {
        padding: 24px 0;
    }

    .logo {
        font-size: 22px;
    }

    .logo-icon {
        width: 24px;
        height: 24px;
    }

    .tagline {
        font-size: 14px;
    }

    .search-box button {
        padding: 14px 20px;
    }

    .tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .tabs::-webkit-scrollbar { display: none; }

    .tab {
        padding: 10px 14px;
        font-size: 13px;
        white-space: nowrap;
    }

    .post-card {
        padding: 16px 18px;
    }

    .post-header {
        flex-direction: column;
        gap: 4px;
    }

    .post-company {
        font-size: 15px;
    }

    .companies-list {
        grid-template-columns: 1fr;
    }

    .modal-content {
        margin: 16px 0;
        border-radius: var(--radius);
    }

    .modal-body {
        padding: 24px;
    }

    .modal-comments {
        padding: 0 24px 24px;
    }

    .modal-company {
        font-size: 19px;
    }

    .fab {
        width: 48px;
        height: 48px;
        bottom: 20px;
        right: 20px;
    }

    .fab svg {
        width: 20px;
        height: 20px;
    }

    .fab-help {
        bottom: 78px;
    }

    .fab-theme {
        bottom: 136px;
    }

    .github-corner svg {
        width: 48px;
        height: 48px;
    }
}

@media (max-width: 480px) {
    .search-box {
        flex-direction: column;
        border-radius: var(--radius);
    }

    .search-icon {
        display: none;
    }

    .search-box input {
        padding: 12px 16px;
        border-bottom: 1px solid var(--gray-100);
    }

    .search-box button {
        width: 100%;
        padding: 12px;
        border-radius: 0 0 var(--radius) var(--radius);
    }

    .post-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}