/* ============================================================
   VIDON.CSS — 基于 GLOBAL 16阶视觉无偏色灰阶的深色纯色风格
   无玻璃、无边框、无动效（仅保留 transform 直接变化）
   仅用黑白灰层级区分，品牌色占比 < 10%
   ============================================================ */

:root {
    /* ===== 1. 品牌色（克制使用） ===== */
    --color-brand: #fedc10;
    --color-black: #020101;
    --color-white: #fffefe;

    /* ===== 2. 16阶视觉无偏色灰阶（来自 global.css） ===== */
    --gray-01: #fffefe;
    --gray-02: #f3f2f2;
    --gray-03: #e6e5e5;
    --gray-04: #d8d7d7;
    --gray-05: #cbcaca;
    --gray-06: #bebdbd;
    --gray-07: #a9a8a8;
    --gray-08: #949393;
    --gray-09: #7f7e7e;
    --gray-10: #6a6969;
    --gray-11: #555454;
    --gray-12: #403f3f;
    --gray-13: #2d2c2c;
    --gray-14: #1b1a1a;
    --gray-15: #0e0d0d;
    --gray-16: #020101;

    /* ===== 3. 语义化颜色（深色系，层次分明） ===== */
    --bg-primary: var(--color-black);        /* #020101 */
    --bg-secondary: var(--gray-15);          /* #0e0d0d (导航、底部栏) */
    --bg-card: var(--gray-14);               /* #1b1a1a (卡片) */
    --bg-card-hover: var(--gray-13);         /* #2d2c2c (卡片悬停) */
    --bg-input: var(--gray-12);              /* #403f3f (输入框) */
    --bg-surface: var(--gray-13);            /* #2d2c2c (表面，如结果框) */
    --bg-hover: var(--gray-13);              /* #2d2c2c (悬停背景) */
    --bg-overlay: rgba(0, 0, 0, 0.85);       /* 遮罩纯色 */

    --text-primary: var(--color-white);      /* #fffefe */
    --text-secondary: var(--gray-04);        /* #d8d7d7 */
    --text-muted: var(--gray-08);            /* #949393 */
    --text-dim: var(--gray-10);              /* #6a6969 */

    /* 品牌功能色（极少数用于按钮） */
    --brand-bg: rgba(254, 220, 16, 0.15);    /* 仅作备用 */

    /* 尺寸 */
    --sidebar-width: 80px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
}

/* ============================================================
   全局重置 — 无动效，仅保留 transform 直接变化
   ============================================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
    transition: none; /* 完全移除过渡动效 */
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    height: 100vh;
    display: flex;
    overflow: hidden;
}

*::-webkit-scrollbar {
    display: none;
}
* {
    scrollbar-width: none;
}

.material-icons-outlined {
    font-size: 24px;
}

/* ============================================================
   侧边栏 (Sidebar) — 纯色
   ============================================================ */
.sidebar {
    flex: 0 0 var(--sidebar-width);
    background-color: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: 100vh;
    padding-top: env(safe-area-inset-top, 0);
    padding-bottom: env(safe-area-inset-bottom, 0);
    z-index: 1000;
}

body.sidebar-collapsed .sidebar {
    flex-basis: 0;
    opacity: 0;
    pointer-events: none;
}

.sidebar-header {
    padding: 22px 0 16px;
    text-align: center;
    flex-shrink: 0;
    background-color: var(--bg-secondary);
}

.sidebar-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}
.logo-icon {
    width: 38px;
    height: 38px;
}
.brand-text sup {
    font-size: 0.55em;
    font-weight: 400;
    vertical-align: super;
    margin-left: 2px;
    color: var(--text-muted);
}

.sidebar-social {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 28px 0;
}
.sidebar-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-muted);
    text-decoration: none;
    background-color: var(--bg-card);
}
.sidebar-icon:hover {
    background-color: var(--bg-card-hover);
    color: var(--text-primary);
    transform: scale(1.05);
}
.social-icon {
    width: 18px;
    height: 18px;
    fill: currentColor;
}
.sidebar-icon .material-icons-outlined {
    font-size: 20px;
}

.sidebar-footer {
    display: flex;
    justify-content: center;
    padding: 20px 0;
    flex-shrink: 0;
}
.menu-item {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-muted);
    background-color: var(--bg-card);
}
.menu-item:hover {
    background-color: var(--bg-card-hover);
    color: var(--text-primary);
    transform: scale(1.05);
}
.menu-item .material-icons-outlined {
    font-size: 20px;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-overlay);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
}
body.sidebar-collapsed .sidebar-overlay {
    opacity: 0;
    pointer-events: none;
}
@media (max-width: 1023px) {
    body:not(.sidebar-collapsed) .sidebar-overlay {
        opacity: 1;
        pointer-events: auto;
    }
}

/* ============================================================
   主内容区 (Main Content) & Header
   ============================================================ */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background-color: var(--bg-primary);
    width: 100%;
    padding-top: env(safe-area-inset-top, 0);
    padding-bottom: env(safe-area-inset-bottom, 0);
    padding-left: env(safe-area-inset-left, 0);
    padding-right: env(safe-area-inset-right, 0);
}

.main-header {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
    padding-top: env(safe-area-inset-top, 0);
    background-color: var(--bg-secondary);
}
.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}
.mobile-logo-trigger {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 50%;
}
.mobile-logo-trigger:hover {
    background-color: var(--bg-hover);
    transform: scale(1.05);
}
.mobile-logo-icon {
    width: 32px;
    height: 32px;
}
.version-badge {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 50px;
    background-color: var(--bg-card);
}
.header-right {
    width: 40px;
}

/* ============================================================
   欢迎页 (Welcome Container)
   ============================================================ */
.welcome-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
}
.welcome-content {
    width: 100%;
    max-width: 680px;
    text-align: center;
}
.welcome-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
}
.welcome-logo .logo-icon {
    width: 52px;
    height: 52px;
}
.welcome-logo .brand-text {
    font-size: 38px;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: -1px;
}
.welcome-subtitle {
    font-size: 18px;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.5;
}

.welcome-input-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--bg-input);
    border-radius: 100px;
    padding: 8px 16px 8px 24px;
}
.welcome-input-row:focus-within {
    background-color: var(--bg-card);
    transform: scale(1.01);
}
.welcome-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 15px;
    padding: 10px 0;
    resize: none;
    line-height: 1.4;
}
.welcome-input::placeholder {
    color: var(--text-muted);
}
.welcome-send-btn {
    background: var(--color-brand);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    color: var(--color-black);
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    box-shadow: none;
    backdrop-filter: none;
}
.welcome-send-btn:hover {
    transform: scale(1.08);
    opacity: 0.95;
}
.welcome-send-btn.send-active {
    color: var(--color-black);
}
.welcome-later-btn {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: none;
    box-shadow: none;
    backdrop-filter: none;
}
.welcome-later-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    transform: scale(1.03);
}

/* ============================================================
   对话容器 (Chat Container)
   ============================================================ */
.chat-container {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 16px 0;
    display: none;
    position: relative;
}
.chat-inner {
    width: 100%;
    max-width: 780px;
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-bottom: 90px;
}

.user-message {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}
.user-content {
    background: var(--gray-02);
    padding: 12px 20px;
    border-radius: 20px 20px 4px 20px;
    font-size: 14px;
    line-height: 1.5;
    max-width: 85%;
    word-break: break-all;
    color: var(--color-black);
}

.assistant-message {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.assistant-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.assistant-logo {
    width: 16px;
    height: 16px;
    object-fit: contain;
}

.chat-clear-wrapper {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin: 20px 0 16px;
}
.chat-clear-btn,
.global-popout-btn {
    background: var(--bg-card);
    border-radius: 100px;
    padding: 9px 22px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    border: none;
    box-shadow: none;
    backdrop-filter: none;
}
.chat-clear-btn:hover,
.global-popout-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    transform: translateY(-2px) scale(1.02);
}
.chat-clear-btn .material-icons-outlined,
.global-popout-btn .material-icons-outlined {
    font-size: 18px;
    color: var(--text-primary);
}

/* ============================================================
   底部输入栏 (Input Bar Container)
   ============================================================ */
.input-bar-container {
    flex-shrink: 0;
    background: var(--bg-primary);
    padding: 16px 20px 24px;
    display: flex;
    justify-content: center;
    display: none;
    padding-bottom: max(24px, env(safe-area-inset-bottom));
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
    position: relative;
    z-index: 1001;
}
.input-box-wrapper {
    width: 100%;
    max-width: 780px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--bg-input);
    border-radius: 100px;
    padding: 6px 16px 6px 24px;
}
.input-row:focus-within {
    background-color: var(--bg-card);
    transform: scale(1.01);
}
.main-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 15px;
    padding: 10px 0;
    resize: none;
    line-height: 1.4;
}
.main-input::placeholder {
    color: var(--text-muted);
}
.send-btn {
    background: none;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
}
.send-btn:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
    transform: scale(1.05);
}
.send-btn-active {
    background: var(--color-brand) !important;
    color: var(--color-black) !important;
}
.send-btn-active:hover {
    transform: scale(1.08);
    opacity: 0.95;
}
.send-btn-later {
    background: var(--bg-card);
    color: var(--text-secondary);
}
.send-btn-later:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.footer-tips {
    font-size: 11px;
    color: var(--text-dim);
    text-align: center;
}
.footer-tips kbd {
    background: var(--bg-card);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-family: inherit;
    color: var(--text-secondary);
}

/* ============================================================
   卡片播放器 (Card Player) — 纯色
   ============================================================ */
.player-area {
    position: relative;
    background-color: var(--color-black);
    border-radius: var(--radius-md);
    overflow: hidden;
    width: 100%;
    aspect-ratio: 16 / 9;
}
.player-area.portrait {
    aspect-ratio: 9 / 16;
    max-width: 360px;
    margin: 0 auto;
}

.card-idle-content {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    text-align: center;
    width: 100%;
    height: 100%;
    background: var(--bg-overlay);
}
.card-idle-content .video-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
    max-width: 85%;
    color: var(--text-primary);
    word-break: break-word;
}
.card-idle-content .play-btn {
    background: var(--color-brand);
    border-radius: 50%;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-black);
    border: none;
    box-shadow: none;
    backdrop-filter: none;
}
.card-idle-content .play-btn:hover {
    transform: scale(1.12);
    opacity: 0.95;
}
.card-idle-content .play-btn .material-icons-outlined {
    font-size: 32px;
}
.card-idle-content .popped-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
    display: none;
}

.player-container {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-black);
}
.player-area.playing .player-container {
    display: block;
}
.player-container video,
.player-container iframe {
    width: 100% !important;
    height: 100% !important;
    border: none !important;
    border-radius: 0 !important;
    object-fit: contain;
    background: var(--color-black);
    display: block;
}

.player-area.idle .player-container,
.player-area.popped .player-container {
    display: none;
}
.player-area.idle .card-idle-content,
.player-area.popped .card-idle-content {
    display: flex;
}
.player-area.playing .card-idle-content {
    display: none;
}
.player-area.popped .card-idle-content .play-btn {
    display: none;
}
.player-area.popped .card-idle-content .popped-label {
    display: block;
}

.popout-btn {
    opacity: 0;
    pointer-events: none;
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 10;
    background-color: var(--bg-card);
    border-radius: 50%;
    width: 38px;
    height: 38px;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    border: none;
    box-shadow: none;
    backdrop-filter: none;
}
.player-area.playing .popout-btn {
    display: flex;
}
.player-area.playing:hover .popout-btn {
    opacity: 1;
    pointer-events: auto;
}
.popout-btn:hover {
    background: var(--bg-hover);
    color: var(--color-brand);
    transform: scale(1.08);
}
@media (max-width: 1023px) {
    .popout-btn {
        display: none !important;
    }
}

/* ============================================================
   浮动播放器 (Floating Video Player) — 纯色
   ============================================================ */
.floating-video {
    position: relative;
    width: 100%;
    background-color: transparent;
    aspect-ratio: 16 / 9;
}
.floating-video iframe,
.floating-video video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: var(--radius-sm);
    object-fit: contain;
    background: transparent;
}
.floating-player,
.floating-backdrop {
    display: none;
}
.floating-player.active {
    display: flex;
}
.floating-backdrop.active {
    display: block;
}
.floating-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-overlay);
    z-index: 999;
}
.floating-player {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    width: auto;
    max-width: 90vw;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    z-index: 1000;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    border: none;
    box-shadow: none;
    backdrop-filter: none;
}
.floating-player.active {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}
.floating-video {
    width: 100%;
    background: transparent;
    pointer-events: none;
}
.floating-video video,
.floating-video iframe {
    pointer-events: auto;
}

/* ============================================================
   桌面端适配
   ============================================================ */
@media (min-width: 1024px) {
    .sidebar {
        position: relative;
        flex: 0 0 var(--sidebar-width);
        transform: none !important;
    }
    body.sidebar-collapsed .sidebar {
        flex-basis: 0;
        opacity: 0;
        pointer-events: none;
    }
    .sidebar-overlay {
        display: none;
    }
    .mobile-logo-trigger {
        display: none !important;
    }
    .main-content {
        width: 100%;
    }
    .main-header {
        padding: 0 28px;
        height: 70px;
    }
    .version-badge {
        font-size: 13px;
    }
    .welcome-logo .logo-icon {
        width: 58px;
        height: 58px;
    }
    .welcome-logo .brand-text {
        font-size: 44px;
    }
    .welcome-subtitle {
        font-size: 20px;
        margin-bottom: 44px;
    }
    .welcome-input,
    .main-input {
        font-size: 16px;
        padding: 12px 0;
    }
    .user-content {
        font-size: 15px;
        padding: 14px 22px;
        max-width: 620px;
    }
    .chat-inner {
        margin: 0 auto;
    }
    .input-bar-container {
        padding: 16px 28px 32px;
    }
    .floating-player {
        min-width: 1000px;
    }
}

@media (max-width: 1023px) {
    body:not(.sidebar-collapsed) .sidebar {
        flex-basis: var(--sidebar-width);
        opacity: 1;
        pointer-events: auto;
    }
    body.sidebar-collapsed .sidebar {
        flex-basis: 0;
        opacity: 0;
        pointer-events: none;
    }
}

/* ============================================================
   工具类
   ============================================================ */
.global-player-container,
.global-player-container .video-js,
.global-player-container .iframe-player,
.floating-player,
.floating-player .video-js,
.floating-player .iframe-player,
.video-js,
.video-js video {
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
    background-color: transparent !important;
}
video.video-js {
    background-color: transparent !important;
}

.back-home-btn {
    display: none;
}