.patina-container {
    max-width: 1000px;
    margin: 0 auto;
}

/* ===== 上传区域 ===== */
.patina-upload-area {
    background: linear-gradient(135deg, #f0fff4 0%, #e6fffa 100%);
    border: 2px dashed #68d391;
    border-radius: 20px;
    padding: 60px 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    margin-bottom: 28px;
}

.patina-upload-area::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(104,211,145,0.08) 0%, transparent 70%);
    animation: patinaPulse 4s ease-in-out infinite;
}

@keyframes patinaPulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 1; }
}

.patina-upload-area:hover {
    border-color: #48bb78;
    background: linear-gradient(135deg, #e6fffa 0%, #e0e7ff 100%);
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(104,211,145,0.15);
}

.patina-upload-area .upload-icon {
    font-size: 56px;
    color: #68d391;
    margin-bottom: 16px;
    display: block;
    position: relative;
    z-index: 1;
}

.patina-upload-area .upload-title {
    font-size: 20px;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.patina-upload-area .upload-desc {
    font-size: 14px;
    color: #718096;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.patina-upload-area .upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: #fff;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    z-index: 1;
    transition: all 0.2s;
    box-shadow: 0 4px 14px rgba(72,187,120,0.3);
}

.patina-upload-area .upload-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(72,187,120,0.4);
}

.patina-upload-area .upload-hint {
    font-size: 12px;
    color: #a0aec0;
    margin-top: 12px;
    position: relative;
    z-index: 1;
}

.patina-upload-area input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 10;
}

/* ===== 输出区域 ===== */
.patina-output-box {
    text-align: center;
    margin-bottom: 28px;
    min-height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #faf5ff 0%, #f7fafc 100%);
    border-radius: 20px;
    border: 2px solid var(--border);
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.patina-output-box[data-direction="horizontal"] {
    flex-direction: row;
    gap: 20px;
}

.patina-output-box[data-direction="vertical"] {
    flex-direction: column;
    gap: 20px;
}

.patina-output-box .source-image,
.patina-output-box .output-image {
    max-width: 100%;
    max-height: 500px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.patina-output-box .output-image {
    border: 3px solid var(--primary);
}

.patina-placeholder {
    color: #a0aec0;
    font-size: 16px;
    text-align: center;
}

.patina-placeholder i {
    display: block;
    font-size: 56px;
    margin-bottom: 16px;
    color: #cbd5e0;
}

.patina-progress {
    text-align: center;
    padding: 20px;
    color: var(--primary);
    font-weight: 600;
    font-size: 15px;
}

.patina-progress i {
    font-size: 28px;
    margin-bottom: 10px;
    display: block;
}

/* ===== 控制面板 ===== */
.patina-ctrl-box {
    background: #fff;
    border-radius: 16px;
    padding: 28px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.patina-btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.patina-btn {
    padding: 11px 22px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.patina-btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 4px 14px rgba(102,126,234,0.3);
}

.patina-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(102,126,234,0.4);
}

.patina-btn-success {
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: #fff;
    box-shadow: 0 4px 14px rgba(72,187,120,0.3);
}

.patina-btn-success:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(72,187,120,0.4);
}

.patina-btn-warning {
    background: linear-gradient(135deg, #ed8936, #dd6b20);
    color: #fff;
    box-shadow: 0 4px 14px rgba(237,137,54,0.3);
}

.patina-btn-warning:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(237,137,54,0.4);
}

.patina-btn-outline {
    background: #fff;
    color: var(--text);
    border: 1px solid var(--border);
}

.patina-btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: #f7fafc;
}

.patina-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.patina-checkbox-row {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
    align-items: center;
    padding: 16px;
    background: #f7fafc;
    border-radius: 12px;
}

.patina-checkbox-row label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
}

.patina-checkbox-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
}

.patina-checkbox-row input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
}

.patina-status {
    margin-left: auto;
    font-size: 13px;
    color: var(--text-light);
    font-weight: 600;
}

/* ===== 滑块组 ===== */
.patina-slider-group {
    margin-bottom: 20px;
    padding: 16px;
    background: #fafafa;
    border-radius: 12px;
    transition: background 0.2s;
}

.patina-slider-group:hover {
    background: #f0f0f0;
}

.patina-slider-group h4 {
    font-size: 14px;
    font-weight: 600;
    margin: 0 0 10px 0;
    color: #4a5568;
}

.patina-slider-row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.patina-slider-row input[type="range"] {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    -webkit-appearance: none;
    appearance: none;
    background: #e2e8f0;
    outline: none;
}

.patina-slider-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(102,126,234,0.4);
    transition: transform 0.2s;
}

.patina-slider-row input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.patina-slider-value {
    min-width: 60px;
    text-align: right;
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
}

/* ===== 高级选项 ===== */
.patina-advanced-toggle {
    margin: 20px 0;
    padding: 14px 0;
    border-top: 1px dashed var(--border);
}

.patina-advanced-toggle label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text);
    font-weight: 600;
}

.patina-advanced-box {
    margin-top: 16px;
    padding: 20px;
    background: linear-gradient(135deg, #f7fafc, #edf2f7);
    border-radius: 14px;
    border: 1px solid var(--border);
}

.patina-advanced-box .patina-slider-group {
    background: #fff;
    margin-bottom: 14px;
}

.patina-advanced-box .patina-slider-group:last-child {
    margin-bottom: 0;
}

/* ===== 水印设置 ===== */
.patina-watermark-section {
    margin-top: 16px;
    padding-top: 20px;
    border-top: 2px dashed var(--border);
}

.patina-watermark-section > h4 {
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 14px 0;
    color: var(--text);
}

.patina-watermark-section textarea {
    width: 100%;
    min-height: 100px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 13px;
    resize: vertical;
    font-family: inherit;
    background: #fff;
    transition: all 0.2s;
}

.patina-watermark-section textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

/* ===== 使用说明 ===== */
/* 权限按钮区域 */
.patina-auth-area{margin:20px 0;padding:30px 24px;background:linear-gradient(135deg,#f8faff,#f0f4ff);border-radius:16px;border:1px solid #e2e8f0;text-align:center}
.patina-auth-icon{font-size:48px;margin-bottom:12px}
.patina-auth-hint{font-size:15px;color:#4a5568;margin-bottom:18px;line-height:1.6}
.patina-auth-btn-group{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.patina-btn-vip{background:linear-gradient(135deg,#f59e0b,#d97706)!important;color:#fff!important;border:none!important;box-shadow:0 4px 15px rgba(245,158,11,.3)}
.patina-btn-vip:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(245,158,11,.4)}
.patina-btn-single{background:#fff!important;color:var(--primary,#667eea)!important;border:2px solid var(--primary,#667eea)!important}
.patina-btn-single:hover{background:rgba(102,126,234,.05)!important;transform:translateY(-1px)}

/* 使用次数信息 */
.patina-usage-info{display:flex;align-items:center;gap:10px;margin:10px 0;padding:8px 12px;background:#f8fafc;border-radius:8px;justify-content:center}
.patina-usage-badge{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;background:linear-gradient(135deg,#fef3c7,#fde68a);color:#92400e;border-radius:20px;font-size:12px;font-weight:600}
.patina-usage-badge-paid{background:linear-gradient(135deg,#d1fae5,#a7f3d0);color:#065f46}
.patina-usage-count{font-size:13px;color:#718096}
.patina-usage-count strong{color:var(--primary,#667eea);font-size:16px}

.patina-tips {
    margin-top: 28px;
    padding: 24px;
    background: linear-gradient(135deg, #fffaf0, #fff5f5);
    border-radius: 16px;
    border: 1px solid #fed7d7;
}

.patina-tips h3 {
    font-size: 17px;
    margin: 0 0 14px 0;
    color: #c05621;
    font-weight: 700;
}

.patina-tips p {
    font-size: 14px;
    color: #744210;
    margin: 0 0 8px 0;
    line-height: 1.8;
}

.patina-tips p:last-child {
    margin-bottom: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .patina-upload-area {
        padding: 40px 20px;
    }
    .patina-upload-area .upload-title {
        font-size: 17px;
    }
    .patina-btn-row {
        flex-direction: column;
    }
    .patina-btn {
        width: 100%;
        justify-content: center;
    }
    .patina-checkbox-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    .patina-status {
        margin-left: 0;
    }
    .patina-ctrl-box {
        padding: 18px;
    }
    .patina-output-box {
        min-height: 180px;
        padding: 16px;
    }
}