.sound-main {
    padding: 32px 20px 48px;
    min-height: calc(100vh - 140px);
}
.sound-container { max-width: 720px; margin: 0 auto; }
.sound-hero { text-align: center; margin-bottom: 28px; }
.sound-hero h2 { font-size: 1.6rem; margin-bottom: 8px; }
.sound-hero p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; }

.sound-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 24px;
    margin-bottom: 24px;
}
.form-group { margin-bottom: 22px; }
.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.recorder {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.rec-btn {
    padding: 10px 16px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
}
.rec-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.rec-btn.stop { border-color: #ef4444; color: #fca5a5; }
.rec-status { font-size: 0.85rem; color: var(--text-muted); }
.rec-status.recording { color: #ef4444; animation: pulse 1s infinite; }
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.rec-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 8px;
    opacity: 0.8;
}

.sound-types {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
}
.sound-type-btn {
    text-align: right;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 12px;
    cursor: pointer;
    font-family: inherit;
    color: var(--text);
    transition: all 0.15s;
}
.sound-type-btn:hover { border-color: var(--primary-light); }
.sound-type-btn.active {
    border-color: #a855f7;
    background: rgba(168, 85, 247, 0.12);
}
.st-icon { font-size: 1.4rem; display: block; margin-bottom: 6px; }
.st-title { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 4px; }
.st-desc { display: block; font-size: 0.75rem; color: var(--text-muted); line-height: 1.4; }

.when-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
    padding: 8px 14px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
}
.tag.active {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--primary-light);
    color: var(--text);
}

.btn-diagnose {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, #7c3aed, #a855f7);
    color: #fff;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
}
.btn-diagnose:hover { opacity: 0.92; }

.sound-results {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
}
.sound-results h3 { margin-bottom: 12px; font-size: 1.15rem; }
.result-intro { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; }
.disclaimer { font-size: 0.8rem; color: var(--text-muted); margin-top: 16px; opacity: 0.8; }
.empty { color: var(--text-muted); }

.card-sound:hover { border-color: #a855f7; }
.card-sound .card-btn {
    background: rgba(168, 85, 247, 0.15);
    color: #c084fc;
}
.card-sound:hover .card-btn {
    background: #a855f7;
    color: #fff;
}

.ai-settings-btn {
    padding: 8px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
}
.ai-loading {
    text-align: center;
    padding: 32px 16px;
    color: var(--text-muted);
}
.ai-loading .spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: #a855f7;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 12px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.ai-answer {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text);
}