html,
body {
    overflow-x: hidden;
}

body {
    box-sizing: border-box;
}

.xiang-page,
.xiang-page *,
.xiang-page *::before,
.xiang-page *::after {
    box-sizing: border-box;
}

.xiang-page {
    width: 100%;
    max-width: 920px;
    margin: 0 auto 90px;
}

.xiang-shell {
    width: 100%;
    max-width: 100%;
    padding: 28px 22px 34px;
    box-sizing: border-box;
    overflow: hidden;
}

.xiang-hero {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    width: 100%;
    margin-bottom: 20px;
}

.xiang-hero-card {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    padding: 20px;
    color: #fff;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 10px 24px rgba(102, 126, 234, 0.28);
}

.xiang-hero-card::before {
    content: "";
    position: absolute;
    width: 88px;
    height: 88px;
    right: -26px;
    top: -26px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
}

.xiang-hero-card h3 {
    margin: 0 0 10px;
    font-size: 20px;
}

.xiang-hero-card p {
    margin: 0;
    line-height: 1.7;
    font-size: 14px;
}

.xiang-toolbar {
    width: 100%;
    min-width: 0;
    display: grid;
    gap: 18px;
    margin-bottom: 18px;
}

.xiang-block {
    width: 100%;
    min-width: 0;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(145, 115, 220, 0.18);
    border-radius: 18px;
    padding: 18px;
    box-sizing: border-box;
    box-shadow: 0 8px 22px rgba(168, 134, 240, 0.12);
}

.xiang-block-title {
    margin: 0 0 14px;
    font-size: 18px;
    color: #5c3bb0;
}

.segmented-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.segmented-group input[type="radio"] {
    display: none;
}

.segmented-label {
    min-width: 110px;
    padding: 10px 14px;
    border-radius: 14px;
    border: 2px solid #d5c4f8;
    background: #fbf8ff;
    color: #5b3ba8;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    font-size: 15px;
}

.segmented-group input[type="radio"]:checked + .segmented-label {
    background: linear-gradient(135deg, #8c63ff, #6f41e8);
    color: #fff;
    border-color: #7a4af0;
    box-shadow: 0 10px 18px rgba(122, 74, 240, 0.25);
}

.xiang-options {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
    min-width: 0;
}

.xiang-select {
    min-width: 180px;
    max-width: 100%;
    padding: 12px 14px;
    font-size: 15px;
    border-radius: 12px;
    border: 2px solid #d4c0ff;
    background: #fff;
    box-shadow: 0 0 10px rgba(197, 163, 255, 0.24);
}

.xiang-check {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #5e4b8b;
    font-size: 15px;
}

.xiang-options .xiang-check:last-child {
    display: none;
}

.upload-shell {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 18px;
    align-items: start;
    min-width: 0;
}

.upload-panel {
    width: 100%;
    border: 2px dashed #c8b1fb;
    background: linear-gradient(180deg, rgba(252, 249, 255, 0.98), rgba(245, 238, 255, 0.92));
    border-radius: 18px;
    padding: 20px;
}

.upload-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 12px;
}

.upload-btn,
.secondary-btn {
    padding: 12px 18px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 15px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.upload-btn {
    background: linear-gradient(135deg, #a678f0, #7f00ff);
    color: #fff;
    box-shadow: 0 8px 18px rgba(127, 0, 255, 0.2);
}

.secondary-btn {
    background: #f3edff;
    color: #6540c5;
    border: 1px solid #d8c8fa;
}

.upload-btn:hover,
.secondary-btn:hover {
    transform: translateY(-1px);
}

.upload-tip,
.upload-meta,
.upload-status {
    color: #6a5c8d;
    font-size: 14px;
    line-height: 1.7;
}

.upload-status {
    min-height: 24px;
    color: #5c3bb0;
    font-weight: 600;
    margin-top: 8px;
}

.preview-panel {
    width: 100%;
    background: rgba(252, 248, 255, 0.96);
    border: 1px solid #e4d8ff;
    border-radius: 18px;
    padding: 14px;
    min-height: 320px;
    box-sizing: border-box;
    display: none;
}

.preview-frame {
    height: 240px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(247, 240, 255, 0.9), rgba(236, 228, 255, 0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: 12px;
}

.preview-placeholder {
    color: #8b78b7;
    font-size: 15px;
    text-align: center;
    line-height: 1.7;
    padding: 0 18px;
}

.preview-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: none;
    border-radius: 12px;
}

.xiang-textarea {
    width: 100%;
    min-height: 130px;
    padding: 14px 16px;
    box-sizing: border-box;
    border: 2px solid #d4c0ff;
    border-radius: 14px;
    font-size: 16px;
    resize: vertical;
    background: #fffefc;
    box-shadow: 0 0 10px rgba(197, 163, 255, 0.24);
}

.xiang-textarea:focus,
.xiang-select:focus {
    outline: none;
    box-shadow: 0 0 20px rgba(211, 170, 255, 0.45);
}

.xiang-submit-row {
    display: flex;
    justify-content: center;
    margin-top: 18px;
}

.xiang-submit-btn {
    min-width: 190px;
}

@media (max-width: 768px) {
    body {
        padding: 16px 10px 90px;
    }

    #chatContainer {
        width: 100%;
        max-width: 100%;
    }

    .xiang-hero,
    .upload-shell {
        grid-template-columns: 1fr;
    }

    .segmented-group {
        flex-wrap: nowrap;
        gap: 8px;
    }

    .segmented-label {
        flex: 1 1 0;
        min-width: 0;
        padding: 8px 6px;
        border-radius: 12px;
        font-size: 13px;
    }

    .xiang-shell {
        padding: 18px 10px 24px;
    }

    .xiang-block {
        padding: 14px 12px;
    }

    h1 {
        font-size: 30px;
        text-align: center;
    }

    .xiang-options {
        gap: 10px;
    }

    .xiang-select {
        width: 100%;
        min-width: 0;
    }

    .preview-panel {
        order: -1;
    }

    .upload-btn,
    .secondary-btn,
    .xiang-submit-btn {
        width: 100%;
        max-width: 100%;
    }
}