/* ============================================================
   首页专用样式
   ============================================================ */
.hero {
    text-align: center;
    padding: 32px 20px 28px;
}
.hero h1 {
    font-size: 36px;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 8px;
}
.hero h1 span { color: var(--primary); }
.hero p {
    font-size: 18px;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto 8px;
}
.hero .sub {
    font-size: 15px;
    color: var(--gray-400);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 16px;
}
.feature-item {
    background: var(--gray-50);
    border-radius: var(--radius);
    padding: 22px 20px;
    text-align: center;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    cursor: pointer;
}
.feature-item:hover {
    border-color: var(--primary-light);
    background: var(--primary-bg);
    transform: translateY(-2px);
}
.feature-item .icon {
    font-size: 32px;
    margin-bottom: 8px;
    display: block;
}
.feature-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-800);
}
.feature-item p {
    font-size: 14px;
    color: var(--gray-500);
    margin-top: 4px;
}
.feature-item.qr-card {
    border-color: var(--primary-lighter);
    background: var(--primary-bg);
}
.feature-item.qr-card:hover {
    border-color: var(--primary);
    background: #dbeafe;
}

.about-text {
    color: var(--gray-600);
    font-size: 15px;
    line-height: 1.8;
}
.about-text strong { color: var(--gray-800); }
.about-text .highlight {
    color: var(--primary);
    font-weight: 600;
}

/* -------- 二维码模态框 -------- */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.50);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-overlay.open { display: flex; }

.modal-box {
    background: #fff;
    border-radius: 20px;
    max-width: 420px;
    width: 100%;
    padding: 36px 32px 32px;
    text-align: center;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.20);
    animation: modalIn 0.30s ease;
    position: relative;
}
@keyframes modalIn {
    0% { transform: scale(0.92) translateY(20px); opacity: 0; }
    100% { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-box .close-btn {
    position: absolute;
    top: 14px; right: 18px;
    background: none; border: none;
    font-size: 28px;
    color: var(--gray-400);
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}
.modal-box .close-btn:hover {
    color: var(--gray-700);
    transform: rotate(90deg);
}

.modal-box h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 6px;
}
.modal-box .sub-tip {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 20px;
}

.modal-box .qr-wrapper {
    display: flex;
    justify-content: center;
    margin: 10px 0 16px;
}
.modal-box .qr-wrapper img {
    width: 200px; height: 200px;
    border-radius: 12px;
    border: 2px solid var(--gray-200);
    background: #fff;
    object-fit: contain;
}

@media (max-width: 600px) {
    .feature-grid { grid-template-columns: 1fr 1fr; }
    .hero h1 { font-size: 28px; }
}
@media (max-width: 420px) {
    .feature-grid { grid-template-columns: 1fr; }
    .modal-box { padding: 28px 20px 24px; }
    .modal-box .qr-wrapper img { width: 160px; height: 160px; }
}

/* ============================================================
   定向生查询页面专用样式
   ============================================================ */
.filter-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}
.filter-bar .form-group {
    flex: 1;
    min-width: 200px;
}
.filter-bar .form-group:nth-child(1),
.filter-bar .form-group:nth-child(2) {
    flex: 3;
    min-width: 250px;
}
.filter-bar .form-group:nth-child(3),
.filter-bar .form-group:nth-child(4) {
    flex: 0.5;
    min-width: 100px;
    max-width: 150px;
}
.filter-bar .btn {
    border-radius: 4px;
    padding: 10px 20px;
    width: 100%;
    font-size: 14px;
}

.filter-bar label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.filter-bar select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--gray-300);
    border-radius: 10px;
    font-size: 15px;
    background: #fff;
    transition: var(--transition);
}
.filter-bar select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.08);
}

.filter-bar input[type="text"] {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--gray-300);
    border-radius: 10px;
    font-size: 15px;
    background: #fff;
    transition: var(--transition);
    cursor: pointer;
}
.filter-bar input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.08);
}
.filter-bar input[type="text"]::placeholder { color: var(--gray-400); }
.filter-bar .form-group { position: relative; }

/* -------- 自定义下拉搜索组件 -------- */
.custom-select {
    position: relative;
    width: 100%;
}
.custom-select .select-header {
    display: flex;
    align-items: center;
    border: 1.5px solid var(--gray-300);
    border-radius: 10px;
    background: #fff;
    transition: var(--transition);
    overflow: hidden;
}
.custom-select .select-label {
    padding: 0 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    white-space: nowrap;
    flex-shrink: 0;
    border-right: 1px solid var(--gray-200);
}
.custom-select .select-header:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.08);
}
.custom-select .select-search {
    flex: 1;
    border: none;
    padding: 10px 14px;
    font-size: 15px;
    background: transparent;
    outline: none;
    min-width: 0;
}
.custom-select .select-search::placeholder { color: var(--gray-400); }
.custom-select .select-arrow {
    padding: 0 12px;
    color: var(--gray-400);
    font-size: 12px;
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
    flex-shrink: 0;
}
.custom-select.open .select-arrow {
    transform: rotate(180deg);
    color: var(--primary);
}
.custom-select .select-options {
    position: absolute;
    top: calc(100% + 4px);
    left: 0; right: 0;
    max-height: 240px;
    overflow-y: auto;
    background: #fff;
    border: 1.5px solid var(--gray-300);
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    z-index: 100;
    display: none;
}
.custom-select.open .select-options { display: block; }
.custom-select .select-option {
    padding: 10px 14px;
    font-size: 14px;
    color: var(--gray-700);
    cursor: pointer;
    transition: background-color 0.15s ease;
    border-bottom: 1px solid var(--gray-100);
}
.custom-select .select-option:last-child { border-bottom: none; }
.custom-select .select-option:hover {
    background: var(--primary-bg);
    color: var(--primary);
}
.custom-select .select-option.selected {
    background: var(--primary-bg);
    color: var(--primary);
    font-weight: 600;
}
.custom-select .select-option.hidden { display: none; }
.custom-select .no-results {
    padding: 16px 14px;
    text-align: center;
    color: var(--gray-400);
    font-size: 14px;
}
.custom-select .select-options::-webkit-scrollbar { width: 6px; }
.custom-select .select-options::-webkit-scrollbar-track { background: var(--gray-50); }
.custom-select .select-options::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 6px; }

.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow);
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
}
.data-table thead {
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
}
.data-table th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    white-space: nowrap;
}
.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-600);
}
.data-table tbody tr:hover { background: var(--primary-bg); }
.data-table tbody tr:last-child td { border-bottom: none; }

@media (max-width: 600px) {
    .filter-bar { flex-direction: column; }
    .filter-bar .form-group { min-width: 100%; }
    .data-table { font-size: 14px; }
    .data-table th,
    .data-table td { padding: 10px 12px; }
}

@media (max-width: 1024px) {
    .filter-bar .form-group:nth-child(1),
    .filter-bar .form-group:nth-child(2) {
        flex: 2; min-width: 200px;
    }
    .filter-bar .form-group:nth-child(3),
    .filter-bar .form-group:nth-child(4) {
        flex: 1; min-width: 90px; max-width: 120px;
    }
}

@media (max-width: 768px) {
    .filter-bar { gap: 10px; }
    .filter-bar .form-group { flex: 1 1 100%; min-width: 100%; }
    .filter-bar .form-group:nth-child(1),
    .filter-bar .form-group:nth-child(2),
    .filter-bar .form-group:nth-child(3),
    .filter-bar .form-group:nth-child(4) {
        flex: 1 1 100%; min-width: 100%; max-width: none;
    }
    .data-table { font-size: 13px; }
    .data-table th,
    .data-table td { padding: 10px 8px; }
}

@media (max-width: 480px) {
    .page-title { font-size: 22px; }
    .filter-bar { gap: 8px; }
    .custom-select .select-label { font-size: 13px; padding: 0 8px; }
    .custom-select .select-search { font-size: 14px; padding: 8px 10px; }
    .btn { padding: 8px 16px; font-size: 14px; }
    .data-table { font-size: 12px; }
    .data-table th,
    .data-table td { padding: 8px 6px; }
}

/* ============================================================
   中考资讯页面专用样式
   ============================================================ */
.category-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.tab-btn {
    padding: 8px 20px;
    border-radius: 40px;
    border: 1.5px solid var(--gray-300);
    background: #fff;
    color: var(--gray-600);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.tab-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}
.tab-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.news-item {
    padding: 20px;
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition);
}
.news-item:last-child { border-bottom: none; }
.news-item:hover { background: var(--gray-50); }
.news-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}
.news-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--gray-800);
}
.news-date {
    font-size: 13px;
    color: var(--gray-400);
    white-space: nowrap;
}
.news-summary {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.7;
    margin-top: 6px;
}
.news-detail {
    margin-top: 12px;
    padding: 14px;
    background: var(--gray-50);
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--gray-700);
    display: none;
}
.news-detail.show { display: block; }
.toggle-detail {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 14px;
    cursor: pointer;
    padding: 4px 0;
    margin-top: 8px;
    font-weight: 600;
}
.toggle-detail:hover { color: var(--primary-light); }

/* ============================================================
   分数计算器页面专用样式
   ============================================================ */
.score-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}
.form-card {
    background: var(--gray-50);
    border-radius: 10px;
    padding: 18px;
    border: 1px solid var(--gray-200);
}
.form-card label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}
.form-card input {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid var(--gray-300);
    border-radius: 8px;
    font-size: 15px;
    transition: var(--transition);
}
.form-card input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.08);
}

.result-display {
    text-align: center;
    padding: 32px 20px;
    background: linear-gradient(135deg, var(--primary-bg), #dbeafe);
    border-radius: var(--radius);
    margin: 20px 0;
}
.result-score {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    margin: 8px 0;
}
.result-label {
    font-size: 15px;
    color: var(--gray-600);
}

.score-breakdown {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-top: 20px;
}
.breakdown-item {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: 14px;
    text-align: center;
}
.breakdown-subject {
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 4px;
}
.breakdown-score {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-800);
}

.action-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 20px;
}

.explanation-list {
    list-style: none;
    padding: 0;
}
.explanation-list li {
    padding: 8px 0;
    font-size: 15px;
    color: var(--gray-700);
    border-bottom: 1px dashed var(--gray-200);
}
.explanation-list li:last-child { border-bottom: none; }

/* -------- 计算器表格 -------- */
.calc-header {
    padding: 18px 24px 14px;
    margin-bottom: 16px;
}
.calc-header .card-title { margin-bottom: 6px; }
.title-prefix {
    color: var(--primary);
    font-weight: 800;
}
.title-main {
    color: var(--gray-700);
    font-weight: 700;
}

.calc-card {
    padding: 0;
    margin-bottom: 16px;
    overflow: hidden;
}

.calc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.calc-table thead {
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
}
.calc-table th {
    padding: 10px 12px;
    text-align: center;
    font-weight: 600;
    color: var(--gray-600);
    white-space: nowrap;
    font-size: 13px;
}
.calc-table td {
    padding: 8px 12px;
    text-align: center;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-700);
    vertical-align: middle;
}
.calc-table tbody tr:hover { background: var(--primary-bg); }
.calc-table tbody tr:last-child td { border-bottom: none; }

.score-input {
    width: 80px;
    padding: 6px 8px;
    border: 2px solid #1ea87a;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    background: #fff;
    color: var(--gray-800);
}
.score-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.15);
}

.calc-table .converted-cell {
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-bg);
    border-radius: 6px;
}

.total-row {
    background: var(--gray-50);
    border-top: 2px solid var(--gray-200);
}
.total-row td {
    padding: 12px;
    font-size: 15px;
    border-bottom: none;
}

.total-score-cell {
    text-align: left;
    white-space: nowrap;
}
.total-divider {
    color: var(--gray-400);
    font-weight: 400;
    margin-left: 2px;
}

.score-rate {
    font-size: 12px;
    font-weight: 400;
    color: var(--gray-500);
    margin-left: 8px;
}

.total-action-cell { text-align: right; }
.btn-reset {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 16px;
    border-radius: 40px;
    border: 1.5px solid var(--gray-300);
    background: #fff;
    color: var(--gray-600);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-reset:hover {
    border-color: var(--primary-light);
    color: var(--primary);
    background: var(--primary-bg);
}

@media (max-width: 600px) {
    .calc-header { padding: 14px 16px 10px; }
    .calc-table { font-size: 13px; }
    .calc-table th,
    .calc-table td { padding: 8px 6px; }
    .score-input { width: 64px; padding: 5px 6px; font-size: 13px; }
    .total-row td { padding: 10px 8px; font-size: 14px; }
    .score-rate { display: block; margin-left: 0; margin-top: 2px; }
    .btn-reset { padding: 5px 12px; font-size: 12px; }
}

.rules-summary {
    background: #f8faff;
    border-radius: 16px;
    padding: 14px 20px;
    margin-bottom: 24px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 20px;
    border: 1px solid #e9eff6;
    font-size: 14px;
    color: #2d4059;
}
.rules-summary .label { font-weight: 600; color: #1a2639; }
.rules-summary .badge {
    background: #2c7be5;
    color: #fff;
    font-weight: 600;
    padding: 2px 14px;
    border-radius: 30px;
    font-size: 13px;
    letter-spacing: 0.3px;
}
.rules-summary .badge.green { background: #1ea87a; }

/* ============================================================
   学科等级页面专用样式
   ============================================================ */
.grade-year-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.grade-year-btn {
    padding: 8px 22px;
    border-radius: 40px;
    border: 1.5px solid var(--gray-300);
    background: #fff;
    color: var(--gray-600);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.grade-year-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}
.grade-year-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 2px 12px rgba(26, 86, 219, 0.25);
}

.grades-table-wrapper { overflow-x: auto; }
.grades-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
}
.grades-table thead {
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
}
.grades-table th {
    padding: 14px 16px;
    text-align: center;
    font-weight: 600;
    color: var(--gray-700);
    white-space: nowrap;
}
.grades-table td {
    padding: 12px 16px;
    text-align: center;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-600);
}
.grades-table tbody tr:hover { background: var(--primary-bg); }
.grades-table tbody tr:last-child td { border-bottom: none; }

.grade-subject-cell {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-800);
    text-align: center !important;
    white-space: nowrap;
}

.grade-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    line-height: 1.6;
}

.grade-header-badge {
    display: inline-block;
    padding: 2px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

@media (max-width: 600px) {
    .grades-table { font-size: 13px; }
    .grades-table th,
    .grades-table td { padding: 10px 8px; }
    .grade-badge { padding: 3px 10px; font-size: 12px; }
    .grade-year-btn { padding: 7px 18px; font-size: 14px; }
}

.grade-main-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 4px;
}
.grade-main-tab {
    padding: 8px 24px;
    border-radius: 40px;
    border: 1.5px solid var(--gray-300);
    background: #fff;
    color: var(--gray-600);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.grade-main-tab:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}
.grade-main-tab.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 2px 12px rgba(26, 86, 219, 0.25);
}

.grade-subject-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.grade-subject-btn {
    padding: 7px 20px;
    border-radius: 40px;
    border: 1.5px solid var(--gray-300);
    background: #fff;
    color: var(--gray-600);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.grade-subject-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}
.grade-subject-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 2px 12px rgba(26, 86, 219, 0.25);
}

@media (max-width: 600px) {
    .grade-main-tab { padding: 7px 18px; font-size: 14px; }
    .grade-subject-btn { padding: 6px 16px; font-size: 13px; }
}