/* ========================================
   粗放主义 - 布局层：两栏布局、面板结构
   ======================================== */

/* ===== 主容器：两栏布局 ===== */
.container {
    display: flex;
    flex-wrap: nowrap;
    height: 100vh;
    overflow: hidden;
    transition:
        grid-template-columns var(--transition-normal),
        filter 0.5s ease-out;
    opacity: 1;
    visibility: visible;
    filter: blur(30px);
    pointer-events: none;
}

.container.visible {
    opacity: 1;
    visibility: visible;
    filter: blur(0);
    pointer-events: auto;
}

/* ===== 左侧面板 ===== */
.left-panel {
    width: 500px;
    flex-shrink: 0;
    min-width: 320px;
    padding: 3rem;
    padding: var(--space-xl, 3rem);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    border-right: 4px solid #0a0a0a;
    border-right: var(--border-width, 4px) solid var(--fg, #0a0a0a);
    background-color: #fffef7;
    background-color: var(--bg, #fffef7);
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
    z-index: 50;
    z-index: var(--z-content, 50);
    contain: layout style paint;
    box-shadow:
        15px 0 40px rgba(0, 0, 0, 0.2),
        0 0 60px rgba(0, 0, 0, 0.1);
    transition:
        width var(--transition-normal),
        padding var(--transition-normal),
        border-right-width var(--transition-normal);
}

.left-panel .hero {
    width: 100%;
    text-align: left;
    animation: slideIn 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===== 右侧面板 ===== */
.right-panel {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    background-color: transparent;
    color: #fffef7;
    color: var(--bg, #fffef7);
    position: relative;
    z-index: 1;
}

/* ===== 右侧：信息面板 ===== */
.info-panel {
    padding: 1.5rem;
    padding: var(--space-md, 1.5rem);
    padding-bottom: 0;
    background: rgba(10, 10, 10, 0.92);
    border-bottom: 1px solid rgba(255, 254, 247, 0.15);
    box-shadow:
        0 8px 40px rgba(0, 0, 0, 0.35),
        0 16px 64px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 254, 247, 0.12),
        inset 0 -1px 0 rgba(0, 0, 0, 0.15),
        inset 0 0 0 1px rgba(255, 254, 247, 0.05);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    z-index: var(--z-content, 50);
}

@supports (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px)) {
    .info-panel {
        background: rgba(10, 10, 10, 0.75);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
    }
}

.info-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 254, 247, 0.2), transparent);
    pointer-events: none;
    z-index: 2;
}

.info-panel::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background:
        linear-gradient(180deg, rgba(255, 150, 80, 0.12) 0%, transparent 12%),
        linear-gradient(90deg, rgba(255, 100, 100, 0.1) 0%, transparent 15%),
        linear-gradient(270deg, rgba(100, 180, 255, 0.1) 0%, transparent 15%),
        linear-gradient(0deg, rgba(150, 100, 255, 0.12) 0%, transparent 12%);
    pointer-events: none;
    z-index: 1;
}

/* ===== 右侧面板阴影层 - 独立于壁纸 ===== */
.right-panel-shadow {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    pointer-events: none;
    z-index: 10;
    box-shadow:
        inset -12px 0 30px rgba(0, 0, 0, 0.15),
        inset 12px 0 30px rgba(0, 0, 0, 0.15),
        inset 0 12px 30px rgba(0, 0, 0, 0.15),
        inset 0 -12px 30px rgba(0, 0, 0, 0.15);
}

/* ===== 壁纸容器 ===== */
.wallpaper-scroll-area {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 0;
    z-index: var(--z-wallpaper, 0);
    background-color: #fffef7;
    background-color: var(--bg, #fffef7);
    scrollbar-width: none;
    contain: layout style paint;

    /* 禁用用户交互 */
    pointer-events: none;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

.wallpaper-image {
    width: 100%;
    min-height: 180px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    position: relative;
    border-bottom: var(--border-heavy) solid var(--border-color);
}

.wallpaper-image img {
    width: 100%;
    height: auto;
    display: block;
    opacity: 0;
    transition: opacity 0.3s ease-out;
}

.wallpaper-image.loaded img {
    opacity: 1;
}