/* ===== 基础变量 ===== */
:root {
    --primary-color: #d4a574;
    --primary-hover: #c4915d;
    --primary-glow: rgba(212, 165, 116, 0.35);
    --bg-color: #1a1a1a;
    --bg-secondary: #252525;
    --bg-tertiary: #2f2f2f;
    --text-primary: #f5f5dc;
    --text-secondary: #b8b8a8;
    --text-muted: #7a7a6a;
    --accent-color: #e8c896;
    --success-color: #98d4a5;
    --border-color: rgba(245, 245, 220, 0.15);
    --glass-bg: rgba(30, 30, 30, 0.55);
    --glass-bg-heavy: rgba(30, 30, 30, 0.72);
    --glass-bg-light: rgba(30, 30, 30, 0.35);
    --glass-border: rgba(245, 245, 220, 0.1);
    --glass-border-hover: rgba(245, 245, 220, 0.2);
    --glass-blur: blur(20px);
    --glass-blur-heavy: blur(30px);
    --glass-blur-light: blur(12px);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.25);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes dotBounce {
    0%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-6px); }
}
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}
@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
@keyframes statusPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(152, 212, 165, 0.5); }
    50% { box-shadow: 0 0 0 4px rgba(152, 212, 165, 0); }
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-glass);
}
.glass-heavy {
    background: var(--glass-bg-heavy);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-glass);
}
.glass-light {
    background: var(--glass-bg-light);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-glass);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

body.dark-theme {
    background: linear-gradient(180deg, rgba(245,245,220,0.7) 0%, rgba(232,220,200,0.65) 30%, rgba(212,200,176,0.6) 60%, rgba(26,26,26,0.75) 100%);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

::selection { background: rgba(212,165,116,0.3); color: var(--text-primary); }
.hidden { display: none !important; }

/* ===== 首页 ===== */
.home-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 0 20px;
    max-width: 680px;
    margin: 0 auto;
}

.home-header {
    padding: 48px 0 24px;
    text-align: center;
    animation: fadeInUp 0.6s ease-out;
}

.header-with-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 20px 28px;
    box-shadow: var(--shadow-glass);
}

.user-avatar-container {
    position: relative;
    width: 58px;
    height: 58px;
    cursor: pointer;
    transition: transform var(--transition-spring);
    flex-shrink: 0;
}
.user-avatar-container:hover { transform: scale(1.08); }
.user-avatar-container:active { transform: scale(0.95); }

.user-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
    background: var(--glass-bg);
}

.avatar-edit-icon {
    position: absolute;
    bottom: -2px;
    right: -2px;
    font-size: 11px;
    background: var(--primary-color);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(30,30,30,0.8);
    transition: transform var(--transition);
}
.user-avatar-container:hover .avatar-edit-icon { transform: scale(1.2); }

.header-title { text-align: left; }

.home-header h1 {
    font-size: 34px;
    font-weight: 800;
    background: linear-gradient(135deg, #e8c896 0%, #d4a574 50%, #8b7355 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
    animation: shimmer 4s linear infinite;
}

.tagline { color: var(--text-secondary); font-size: 14px; }

.home-content {
    flex: 1;
    padding: 20px 0;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hot-characters h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.fire-icon { font-size: 22px; }

.character-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 14px;
}

.character-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius);
    padding: 20px 14px 16px;
    text-align: center;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-glass);
    transition: all var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.character-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(212,165,116,0.08) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition);
}
.character-card:hover::before { opacity: 1; }
.character-card:hover {
    transform: translateY(-3px);
    border-color: var(--glass-border-hover);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 20px var(--primary-glow);
}
.character-card:active { transform: translateY(-1px) scale(0.98); }

.card-avatar {
    width: 72px;
    height: 72px;
    margin: 0 auto 12px;
    border-radius: 50%;
    overflow: hidden;
    border: 2.5px solid var(--primary-color);
    background: var(--glass-bg-light);
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
    transition: transform var(--transition);
}
.character-card:hover .card-avatar { transform: scale(1.05); }
.card-avatar img { width: 100%; height: 100%; object-fit: cover; }

.card-info h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.card-desc { color: var(--text-secondary); font-size: 12px; margin-bottom: 14px; min-height: 18px; line-height: 1.4; }

.btn-chat {
    width: 100%;
    padding: 9px 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.btn-chat::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition);
}
.btn-chat:hover { background: var(--primary-hover); box-shadow: 0 4px 16px var(--primary-glow); }
.btn-chat:hover::after { opacity: 1; }
.btn-chat:active { transform: scale(0.97); }

/* 关于开发者 */
.about-developer {
    position: fixed;
    bottom: 28px;
    left: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 18px;
    background: var(--glass-bg-heavy);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    font-size: 13px;
    box-shadow: var(--shadow-glass);
    transition: all var(--transition);
    z-index: 100;
}
.about-developer:hover {
    transform: translateY(-2px);
    color: var(--primary-color);
    border-color: var(--glass-border-hover);
}
.about-developer:active { transform: scale(0.95); }
.about-icon { font-size: 16px; }

/* 创建按钮 */
.fab-create {
    position: fixed;
    bottom: 28px;
    right: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: linear-gradient(135deg, rgba(212,165,116,0.35) 0%, rgba(212,165,116,0.2) 100%);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border: 1px solid rgba(212,165,116,0.25);
    color: var(--primary-color);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    box-shadow: 0 8px 32px rgba(212,165,116,0.2);
    transition: all var(--transition);
    z-index: 100;
}
.fab-create:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
    box-shadow: 0 12px 40px rgba(212,165,116,0.35);
}
.fab-create:active { transform: scale(0.95); }
.plus-icon { font-size: 18px; font-weight: 300; }

.home-footer { padding: 24px 0; text-align: center; }
.developer-tag { color: var(--text-muted); font-size: 11px; opacity: 0.6; letter-spacing: 0.5px; }

.custom-section { margin-top: 8px; }
.custom-section h2 { color: var(--accent-color); }
.custom-icon { font-size: 20px; }

/* 空状态 */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 56px 24px;
    background: var(--glass-bg-light);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-lg);
    border: 1px dashed rgba(245,245,220,0.15);
    box-shadow: var(--shadow-glass);
}
.empty-icon { font-size: 56px; margin-bottom: 16px; opacity: 0.5; }
.empty-state h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.empty-state p { color: var(--text-secondary); font-size: 13px; line-height: 1.5; }

/* ===== 聊天页 ===== */
.chat-page { height: 100vh; overflow: hidden; }
#chat-container { height: 100vh; display: flex; flex-direction: column; background: transparent; }

.chat-header {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    background: var(--glass-bg-heavy);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border-bottom: 1px solid var(--glass-border);
    gap: 12px;
    z-index: 10;
}

.btn-back {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 22px;
    padding: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all var(--transition);
}
.btn-back:hover { background: var(--glass-bg); }
.btn-back:active { transform: scale(0.9); }

.avatar-img {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.header-info { flex: 1; min-width: 0; }
.header-info strong { font-size: 15px; font-weight: 600; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.header-status {
    font-size: 12px;
    color: var(--success-color);
    display: flex;
    align-items: center;
    gap: 5px;
}
.header-status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success-color);
    animation: statusPulse 2s ease-in-out infinite;
}

.header-actions { display: flex; gap: 6px; }

.btn-header {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}
.btn-header:hover { background: var(--primary-color); border-color: var(--primary-color); transform: scale(1.08); }
.btn-header:active { transform: scale(0.92); }

#chat-window {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-message {
    display: flex;
    gap: 10px;
    max-width: 82%;
    animation: fadeInUp 0.3s ease-out;
}
.message-ai { align-self: flex-start; }
.message-user { align-self: flex-end; flex-direction: row-reverse; }

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    margin-top: 2px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}
.message-avatar img { width: 100%; height: 100%; object-fit: cover; }

.message-content { display: flex; flex-direction: column; gap: 3px; }
.message-name { font-size: 11px; color: var(--text-muted); padding: 0 6px; font-weight: 500; }
.message-user .message-name { text-align: right; }

.message-bubble {
    padding: 10px 14px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.65;
    word-wrap: break-word;
}
.message-ai .message-bubble {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-top-left-radius: 4px;
}
.message-user .message-bubble {
    background: rgba(212,165,116,0.35);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid rgba(212,165,116,0.18);
    border-top-right-radius: 4px;
}

.action-text { color: #ffe082; font-style: italic; opacity: 0.95; }

/* 打字指示器 */
.typing-indicator { display: flex; gap: 4px; padding: 4px 0; }
.typing-indicator span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-secondary);
    animation: dotBounce 1.4s ease-in-out infinite;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.16s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.32s; }

.input-area {
    display: flex;
    gap: 10px;
    padding: 10px 14px 16px;
    background: var(--glass-bg-heavy);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border-top: 1px solid var(--glass-border);
}

.input-area input {
    flex: 1;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 11px 18px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: all var(--transition);
}
.input-area input:focus {
    border-color: rgba(212,165,116,0.4);
    box-shadow: 0 0 0 3px rgba(212,165,116,0.1);
    background: var(--glass-bg-heavy);
}
.input-area input::placeholder { color: var(--text-muted); }

.btn-send {
    padding: 11px 22px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}
.btn-send:hover { background: var(--primary-hover); box-shadow: 0 4px 16px var(--primary-glow); }
.btn-send:active { transform: scale(0.95); }
.btn-send:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* 模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    animation: fadeIn 0.2s ease-out;
}

.modal-content {
    background: var(--glass-bg-heavy);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 400px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: 0 24px 80px rgba(0,0,0,0.4);
    animation: slideUp 0.3s ease-out;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 22px;
    border-bottom: 1px solid var(--glass-border);
}
.modal-header h3 { font-size: 17px; font-weight: 600; }

.btn-close {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 18px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
.btn-close:hover { background: rgba(255,80,80,0.2); border-color: rgba(255,80,80,0.3); color: #ff6b6b; }

.modal-body { padding: 22px; }
.screenshot-tip { color: var(--text-secondary); font-size: 13px; margin-bottom: 16px; text-align: center; }

.screenshot-preview {
    background: var(--glass-bg-light);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--glass-border);
}

.modal-footer {
    display: flex;
    gap: 10px;
    padding: 16px 22px;
    border-top: 1px solid var(--glass-border);
}

.btn-primary {
    flex: 1;
    padding: 11px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 4px 16px var(--primary-glow); }
.btn-primary:active { transform: scale(0.97); }

.btn-secondary {
    flex: 1;
    padding: 11px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition);
}
.btn-secondary:hover { background: var(--glass-bg-heavy); border-color: var(--glass-border-hover); }
.btn-secondary:active { transform: scale(0.97); }

/* ===== 创建角色页 ===== */
.create-page { min-height: 100vh; }
.create-container { max-width: 560px; margin: 0 auto; padding: 0 20px 40px; }

.create-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    margin: 0 -20px;
    position: sticky;
    top: 0;
    background: var(--glass-bg-heavy);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border-bottom: 1px solid var(--glass-border);
    z-index: 10;
}
.create-header h1 { font-size: 18px; font-weight: 600; }
.header-spacer { width: 36px; }

.create-content { padding: 20px 0; }

.form-section {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-lg);
    padding: 22px;
    margin-bottom: 16px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-glass);
    animation: fadeInUp 0.4s ease-out both;
}
.form-section:nth-child(2) { animation-delay: 0.05s; }
.form-section:nth-child(3) { animation-delay: 0.1s; }

.form-section h2 { font-size: 16px; font-weight: 600; margin-bottom: 18px; color: var(--primary-color); }

.form-group { margin-bottom: 18px; }
.form-group:last-child { margin-bottom: 0; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 7px; color: var(--text-secondary); }
.required { color: var(--accent-color); }
.optional { color: var(--text-muted); font-size: 11px; }

input[type="text"],
input[type="url"],
textarea,
select {
    width: 100%;
    background: var(--glass-bg-light);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 11px 14px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: all var(--transition);
    font-family: inherit;
}
input:focus, textarea:focus, select:focus {
    border-color: rgba(212,165,116,0.4);
    box-shadow: 0 0 0 3px rgba(212,165,116,0.08);
    background: var(--glass-bg);
}
input::placeholder, textarea::placeholder { color: var(--text-muted); }
textarea { resize: vertical; min-height: 76px; line-height: 1.5; }

.help-text { display: block; font-size: 11px; color: var(--text-muted); margin-top: 5px; }

/* 头像上传 */
.avatar-upload { display: flex; gap: 16px; align-items: center; }

.avatar-preview {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    overflow: hidden;
    border: 2.5px solid var(--primary-color);
    flex-shrink: 0;
    background: var(--glass-bg-light);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.avatar-preview img { width: 100%; height: 100%; object-fit: cover; }

.avatar-options { flex: 1; display: flex; flex-direction: column; gap: 10px; }
.avatar-options input[type="file"] { display: none; }

.btn-upload {
    display: inline-block;
    padding: 9px 18px;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    transition: all var(--transition);
}
.btn-upload:hover { background: var(--primary-hover); box-shadow: 0 4px 12px var(--primary-glow); }
.btn-upload:active { transform: scale(0.97); }
.or-text { color: var(--text-muted); font-size: 12px; }

/* 复选框 */
.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 7px;
    cursor: pointer;
    padding: 8px 10px;
    background: var(--glass-bg-light);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    font-size: 12px;
    user-select: none;
}
.checkbox-label:hover { background: rgba(212,165,116,0.12); border-color: rgba(212,165,116,0.25); }
.checkbox-label input[type="checkbox"] { display: none; }

.checkmark {
    width: 16px;
    height: 16px;
    border: 1.5px solid var(--glass-border-hover);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    flex-shrink: 0;
}
.checkbox-label input[type="checkbox"]:checked + .checkmark { background: var(--primary-color); border-color: var(--primary-color); }
.checkbox-label input[type="checkbox"]:checked + .checkmark::after { content: '✓'; color: white; font-size: 10px; font-weight: bold; }
.checkbox-label:has(input[type="checkbox"]:checked) { background: rgba(212,165,116,0.12); border-color: rgba(212,165,116,0.3); }

/* 文件上传 */
.bg-upload, .music-upload { display: flex; flex-direction: column; gap: 10px; }
.bg-upload input[type="file"], .music-upload input[type="file"] { display: none; }

.btn-upload-file {
    display: block;
    padding: 12px 16px;
    background: var(--glass-bg-light);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1.5px dashed var(--glass-border-hover);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 13px;
    cursor: pointer;
    text-align: center;
    transition: all var(--transition);
}
.btn-upload-file:hover { border-color: var(--primary-color); color: var(--text-primary); background: rgba(212,165,116,0.08); }

.advanced-section { padding: 0; overflow: hidden; }
.section-header { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; cursor: pointer; transition: all var(--transition); }
.section-header:hover { background: var(--glass-bg-light); }
.section-header h2 { margin: 0; }
.toggle-icon { color: var(--text-muted); font-size: 14px; transition: transform 0.3s; }
.advanced-content { padding: 0 24px 24px; }

.form-actions { display: flex; gap: 10px; padding: 20px 0; }
.form-actions .btn-secondary, .form-actions .btn-primary { flex: 1; padding: 13px; font-size: 15px; }

.create-footer { text-align: center; padding: 20px 0; }

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(245,245,220,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(245,245,220,0.2); }

/* ===== 响应式 ===== */
@media (max-width: 480px) {
    .home-header h1 { font-size: 28px; }
    .home-header { padding: 36px 0 20px; }
    .header-with-avatar { flex-direction: column; gap: 14px; padding: 18px 24px; }
    .header-title { text-align: center; }
    .user-avatar-container { width: 50px; height: 50px; }

    .character-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .character-card { padding: 16px 12px; }
    .card-avatar { width: 56px; height: 56px; }
    .card-info h3 { font-size: 14px; }

    .fab-text { display: none; }
    .fab-create {
        width: 52px; height: 52px; border-radius: 50%;
        padding: 0; justify-content: center; bottom: 20px; right: 20px;
    }
    .about-text { display: none; }
    .about-developer {
        width: 52px; height: 52px; border-radius: 50%;
        padding: 0; justify-content: center; bottom: 20px; left: 20px;
    }

    .chat-message { max-width: 88%; }
    .message-bubble { font-size: 13px; padding: 9px 12px; }

    .create-container { padding: 0 16px 30px; }
    .create-header { padding: 14px 16px; margin: 0 -16px; }
    .form-section { padding: 18px; }
    .avatar-upload { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 360px) {
    .character-grid { grid-template-columns: 1fr; }
}