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

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    position: relative;
    text-align: center;
    color: white;
    margin-bottom: 30px;
}

.home-settings-btn {
    position: absolute;
    top: 0;
    right: 0;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255,255,255,0.5);
    border-radius: 50%;
    background: rgba(255,255,255,0.16);
    color: white;
    cursor: pointer;
    font-size: 1.35em;
    line-height: 1;
    box-shadow: 0 8px 20px rgba(0,0,0,0.16);
    transition: transform 0.2s ease, background 0.2s ease;
}

.contact-btn {
    position: absolute;
    top: 0;
    left: 0;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255,255,255,0.5);
    border-radius: 50%;
    background: rgba(255,255,255,0.16);
    color: white;
    cursor: pointer;
    font-size: 1.25em;
    line-height: 1;
    box-shadow: 0 8px 20px rgba(0,0,0,0.16);
    transition: transform 0.2s ease, background 0.2s ease;
}

.contact-btn:hover {
    background: rgba(255,255,255,0.28);
    transform: rotate(-12deg) scale(1.04);
}

.contact-modal {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(18, 24, 52, 0.58);
}

.contact-modal.active {
    display: flex;
}

.contact-panel {
    position: relative;
    width: min(360px, 100%);
    padding: 28px 24px 24px;
    border-radius: 18px;
    background: #fff;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.28);
}

.contact-panel h2 {
    color: #2f365f;
    margin-bottom: 8px;
    font-size: 1.35em;
}

.contact-panel p {
    color: #667085;
    line-height: 1.6;
    margin-bottom: 18px;
}

.contact-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 34px;
    height: 34px;
    border: none;
    border-radius: 50%;
    background: #eef1ff;
    color: #5568d3;
    cursor: pointer;
    font-size: 1.35em;
    line-height: 1;
}

.contact-qrcode {
    display: block;
    width: min(240px, 100%);
    margin: 0 auto 16px;
    border-radius: 12px;
    border: 1px solid #edf0f7;
}

.contact-wechat {
    padding: 12px 14px;
    border-radius: 12px;
    background: #f8f9ff;
    color: #2f365f;
    line-height: 1.5;
}

.home-settings-btn:hover {
    background: rgba(255,255,255,0.28);
    transform: rotate(24deg) scale(1.04);
}

.home-settings-modal {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(18, 24, 52, 0.58);
}

.home-settings-modal.active {
    display: flex;
}

.home-settings-panel {
    width: min(620px, 100%);
    max-height: 86vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 20px 60px rgba(0,0,0,0.28);
}

.home-settings-header {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    padding: 22px 24px 18px;
    border-bottom: 1px solid #edf0f7;
    background: linear-gradient(180deg, #f8f9ff 0%, #fff 100%);
}

.home-settings-header h2 {
    color: #2f365f;
    margin-bottom: 6px;
    font-size: 1.35em;
}

.home-settings-header p {
    color: #667085;
    line-height: 1.6;
}

.home-settings-close {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: #eef1ff;
    color: #5568d3;
    cursor: pointer;
    font-size: 1.4em;
    flex-shrink: 0;
}

.home-settings-list {
    display: grid;
    gap: 10px;
    padding: 18px 20px;
    overflow-y: auto;
    position: relative;
}

.home-settings-item {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid #e5e8f2;
    border-radius: 14px;
    background: #fbfcff;
    cursor: grab;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.22s ease, background 0.2s ease;
    touch-action: none;
}

.home-settings-item.dragging {
    opacity: 0.92;
    border-color: #667eea;
    background: #eef1ff;
    box-shadow: 0 16px 36px rgba(102,126,234,0.34);
    transform: scale(1.035);
    cursor: grabbing;
    pointer-events: none;
    z-index: 2;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.home-settings-item.sort-animating {
    transition: transform 0.22s ease;
}

.home-settings-placeholder {
    border: 2px dashed rgba(102,126,234,0.45);
    border-radius: 14px;
    background: rgba(102,126,234,0.08);
    transition: transform 0.22s ease, height 0.18s ease;
}

.home-settings-drag {
    color: #9aa3b8;
    font-size: 1.2em;
    user-select: none;
}

.home-settings-name {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #333;
    font-weight: bold;
}

.home-settings-name input {
    width: 18px;
    height: 18px;
    accent-color: #667eea;
}

.home-settings-actions {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 20px 20px;
    border-top: 1px solid #edf0f7;
}

.home-settings-action-group {
    display: flex;
    gap: 10px;
}

.home-settings-actions button {
    border: none;
    border-radius: 999px;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 1em;
}

.home-settings-reset,
.home-settings-cancel {
    background: #f2f4f8;
    color: #475467;
}

.home-settings-save {
    background: #667eea;
    color: white;
}

header h1 {
    font-size: 3em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

header p {
    font-size: 1.2em;
    opacity: 0.9;
}

.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.module-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.module-card h2 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.8em;
}

.module-card p {
    color: #666;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .home-settings-btn {
        top: -4px;
        right: 0;
        width: 40px;
        height: 40px;
    }

    .contact-btn {
        top: -4px;
        width: 40px;
        height: 40px;
    }

    .home-settings-modal,
    .contact-modal {
        padding: 12px;
    }

    .home-settings-header,
    .home-settings-actions {
        padding-left: 16px;
        padding-right: 16px;
    }

    .home-settings-actions {
        flex-direction: column;
    }

    .home-settings-action-group {
        justify-content: flex-end;
    }
}

.practice-area {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    display: none;
}

.practice-area.active {
    display: block;
}

.back-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin-bottom: 20px;
    font-size: 1em;
}

.back-btn:hover {
    background: #5568d3;
}

.gua-image {
    text-align: center;
    margin: 30px 0;
}

.gua-symbol {
    font-size: 5em;
    color: #333;
    margin: 0;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px auto;
    max-width: 800px;
}

.option-btn {
    background: #f0f0f0;
    border: 2px solid #ddd;
    padding: 15px 30px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.2em;
    transition: all 0.3s;
}

.option-btn.selected {
    background: #4CAF50;
    border-color: #4CAF50;
    color: white;
}

.option-btn:hover {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.option-btn.correct {
    background: #4CAF50;
    color: white;
    border-color: #4CAF50;
}

.option-btn.wrong {
    background: #f44336;
    color: white;
    border-color: #f44336;
}

.bagua-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin: 20px auto;
    max-width: 800px;
}

.bagua-btn {
    background: #f0f0f0;
    border: 2px solid #ddd;
    padding: 10px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1em;
    transition: all 0.3s;
    text-align: center;
}

.bagua-btn svg {
    display: block;
    width: 40px;
    height: 40px;
    margin: 0 auto;
}

.bagua-btn:hover {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.bagua-btn.selected {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.result-area {
    text-align: center;
    margin: 20px 0;
    padding: 20px;
    border-radius: 10px;
    font-size: 1.3em;
}

.result-area.correct {
    background: #e8f5e9;
    color: #2e7d32;
}

.result-area.wrong {
    background: #ffebee;
    color: #c62828;
}

.next-btn {
    background: #4CAF50;
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.2em;
    margin-top: 20px;
}

.next-btn:hover {
    background: #45a049;
}

.progress-info {
    text-align: center;
    margin: 20px 0;
    font-size: 1.2em;
    color: #667eea;
}

.gua-name-display {
    text-align: center;
    font-size: 2em;
    margin: 20px 0;
    color: #333;
}

.selected-bagua {
    text-align: center;
    margin: 20px 0;
    font-size: 1.5em;
}

.yaoci-section {
    margin: 30px 0;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 10px;
}

.yaoci-option {
    background: #f0f0f0;
    border: 2px solid #ddd;
    padding: 15px;
    margin: 10px 0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.yaoci-option:hover {
    background: #667eea;
    color: white;
}

.score-display {
    text-align: center;
    font-size: 1.5em;
    color: #667eea;
    margin: 20px auto;
    max-width: 800px;
}

.related-gua-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 116px));
    justify-content: center;
    gap: 8px;
    margin: 14px 0 18px;
}

.related-gua-actions .option-btn {
    width: 100%;
    min-height: 34px;
    padding: 7px 10px;
    border: none;
    border-radius: 10px;
    color: #fff;
    font-size: 0.88em;
    box-shadow: 0 6px 14px rgba(31, 41, 55, 0.12);
}

.related-gua-actions #cxChangeGuaBtn {
    background: #ef4444;
}

.related-gua-actions #cxHuguaBtn {
    background: #3b82f6;
}

.related-gua-actions #cxZongguaBtn {
    background: #8b5cf6;
}

.related-gua-actions #cxCuoguaBtn {
    background: #f59e0b;
}

.related-gua-actions .option-btn:disabled,
.related-gua-actions .option-btn.disabled {
    background: #e6e8ef;
    border-color: #d0d5dd;
    color: #98a2b3;
    cursor: not-allowed;
    box-shadow: none;
}

.related-gua-actions .option-btn:disabled:hover,
.related-gua-actions .option-btn.disabled:hover {
    background: #e6e8ef;
    border-color: #d0d5dd;
    color: #98a2b3;
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    header h1 {
        font-size: 2em;
    }

    header p {
        font-size: 1em;
    }

    .module-grid {
        grid-template-columns: 1fr;
    }

    .module-card {
        padding: 20px;
    }

    .practice-area {
        padding: 20px;
    }

    .gua-symbol {
        font-size: 2rem;
    }

    .bagua-options {
        grid-template-columns: repeat(4, 1fr);
        gap: 10px;
    }

    .bagua-btn {
        padding: 15px 10px;
        font-size: 1.2em;
    }

    .bagua-btn div:first-child {
        font-size: 1.8em;
    }

    .bagua-btn div:last-child {
        font-size: 0.6em;
        margin-top: 3px;
    }

    .options-grid {
        grid-template-columns: 1fr;
    }

    .option-btn {
        padding: 12px 20px;
        font-size: 1em;
    }

    .gua-name-display {
        font-size: 1.5em;
    }

    .result-area {
        font-size: 1.1em;
    }

    .next-btn {
        padding: 12px 30px;
        font-size: 1.1em;
    }

    .back-btn {
        padding: 8px 16px;
        font-size: 0.9em;
    }
}