/* =========================================
   组件核心样式 (Cards & Sections)
========================================= */
.card { 
    background: var(--glass); 
    backdrop-filter: blur(16px); 
    -webkit-backdrop-filter: blur(16px); 
    border: 1px solid var(--glass-border); 
    border-top: 1.5px solid var(--glass-highlight); 
    border-left: 1.5px solid var(--glass-highlight); 
    border-radius: var(--radius-lg); 
    padding: 40px; 
    box-shadow: var(--card-shadow), inset 0 1px 0 var(--glass-highlight); 
    position: relative; 
    user-select: none; 
    transform: translateZ(0); 
    transition: opacity 0.3s, transform 0.3s; 
}

/* =========================================
   顶部控制栏 (Theme & Lang Nav)
========================================= */
.theme-wrapper { position: absolute; top: 20px; right: 20px; display: flex; justify-content: flex-end; align-items: flex-start; gap: 15px; z-index: 10000; height: auto; }
.theme-nav { display: inline-flex; gap: 10px; align-items: center; background: var(--glass); padding: 8px; border-radius: 30px; box-shadow: inset 0 0 0 1px var(--glass-border), 0 10px 30px -10px rgba(0, 0, 0, 0.3); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); user-select: none; transition: all 0.4s ease; transform-origin: right top; }
.theme-nav.is-scrolled { gap: 6px; padding: 4px 10px; border-radius: 20px; transform: scale(0.8) translateZ(0); }
.theme-item { width: 42px; height: 42px; display: flex; align-items: center; justify-content: center; cursor: pointer; border-radius: 50%; font-size: 20px; transition: all 0.4s ease; color: var(--text); opacity: 0.5; filter: grayscale(100%); transform: translateZ(0); }
.theme-item .emoji { display: inline-block; transition: transform 0.4s ease; }
.theme-item.is-active { opacity: 1; background: var(--accent); color: white; transform: scale(1.15) translateZ(0); filter: grayscale(0%); box-shadow: 0 0 15px var(--accent), inset 0 0 10px rgba(255, 255, 255, 0.4); }

/* =========================================
   个人信息与头像 (Profile)
========================================= */
.profile-header { display: flex; align-items: flex-start; gap: 25px; margin-bottom: 25px; }
.avatar-box { display: flex; flex-direction: column; align-items: center; }
.avatar-sq { width: 110px; height: 110px; border-radius: 28%; border: 3.5px solid var(--accent); overflow: hidden; transition: border-color 0.3s; }
.name-display { font-size: 28px; font-weight: 900; letter-spacing: -1px; display: inline-block; transition: color 0.3s; }
.premium-emoji { display: inline-block; vertical-align: middle; width: 28px; height: 28px; margin-left: 6px; animation: pulse-badge 1.5s infinite alternate; }

/* =========================================
   快捷统计 (Quick Stats Grid)
========================================= */
.quick-stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 25px; }
.stat-item { background: rgba(0,0,0,0.03); border-radius: var(--radius-sm); padding: 12px 15px; box-shadow: inset 0 0 0 1px var(--glass-border); display: flex; flex-direction: column; gap: 4px; transition: transform 0.2s, box-shadow 0.2s; overflow: hidden; }
[data-theme="dark"] .stat-item { background: rgba(255,255,255,0.03); }
.stat-label { font-size: 10px; font-weight: 800; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; transition: color 0.3s; }
.stat-val { font-size: 13px; font-weight: 700; color: var(--text); overflow: hidden; white-space: nowrap; position: relative; display: flex; align-items: center; }
.live-badge { font-size: 14px; animation: pulse-badge 1.5s infinite alternate; filter: drop-shadow(0 0 5px var(--accent)); margin-left: 5px; }
.ripple-card { position: relative; overflow: hidden; cursor: pointer; }
.ripple { position: absolute; border-radius: 50%; background: rgba(var(--accent), 0.4); transform: scale(0); animation: ripple-anim 0.6s linear; pointer-events: none; }
[data-theme="dark"] .ripple { background: rgba(var(--accent), 0.3); }

/* =========================================
   在线状态与 Steam 横幅 (Presence & Live Box)
========================================= */
.presence-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(0, 206, 201, 0.1); color: #00cec9; padding: 6px 12px; border-radius: 20px; font-size: 11px; font-weight: 800; box-shadow: inset 0 0 0 1px rgba(0, 206, 201, 0.3); }
.pulse-dot { width: 8px; height: 8px; background-color: var(--color-success); border-radius: 50%; animation: pulse-presence 2s infinite cubic-bezier(0.66, 0, 0, 1); }

.steam-box { margin-bottom: 20px; border-radius: var(--radius-md); padding: 25px; background: rgba(0,0,0,0.06); display: flex; align-items: center; justify-content: center; cursor: pointer; user-select: none; position: relative; overflow: hidden; transform: translateZ(0); box-shadow: inset 0 0 0 1px transparent; transition: box-shadow 0.4s, transform 0.1s; }
.steam-box::after { content: ""; position: absolute; left: 0; width: 100%; height: 60%; pointer-events: none; z-index: 1; background: linear-gradient(to bottom, transparent 0%, rgba(var(--accent), 0.05) 50%, var(--accent) 100%); opacity: 0.3; animation: scan-loop 3s ease-in-out infinite alternate; }
.steam-box::before { content: ""; position: absolute; inset: 0; background: radial-gradient(800px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 35%, transparent), transparent 40%); z-index: 0; pointer-events: none; opacity: 0; transition: opacity 0.4s ease; mix-blend-mode: overlay; }
@media (hover: hover) { .steam-box:hover::before { opacity: 1; } }

.steam-box.is-live-active { box-shadow: 0 0 30px rgba(0, 206, 201, 0.3), inset 0 0 20px rgba(0, 206, 201, 0.15), inset 0 0 0 1px rgba(0, 206, 201, 0.4); }
.steam-text-container { font-weight: 900; font-size: 24px; z-index: 2; position: relative; width: 100%; display: flex; align-items: center; justify-content: center; min-height: 32px; }
.live-word-inner, .single-word { background: linear-gradient(90deg, #ff7675, var(--accent), #00cec9, #ff7675); background-size: 200%; -webkit-background-clip: text; color: transparent; display: inline-block; max-width: 100%; overflow: hidden; text-overflow: ellipsis; vertical-align: bottom; }
#live-corner-info { position: absolute; right: 20px; bottom: 12px; font-size: 11.5px; font-weight: 800; opacity: 0; transform: translateX(10px); transition: all 0.3s ease; z-index: 5; color: var(--accent); }
.steam-box:hover #live-corner-info { opacity: 1; transform: translateX(0); }

/* =========================================
   图表与热力图 (Charts & Heatmap)
========================================= */
.chart-container { background: rgba(0,0,0,0.03); border-radius: var(--radius-md); padding: 10px; border: 1px solid var(--glass-border); position: relative; width: 100%; transition: height 0.3s; }

.heatmap-outer { width: 100%; overflow-x: auto; margin-top: 10px; margin-bottom: 25px; padding-bottom: 10px; scrollbar-width: thin; scrollbar-color: var(--glass-border) transparent; }
.heatmap-outer::-webkit-scrollbar { height: 6px; }
.heatmap-outer::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 6px; }
.heatmap-inner { min-width: max-content; display: flex; flex-direction: column; }
.heatmap-header { display: flex; margin-left: 30px; margin-bottom: 5px; font-size: 10px; color: var(--text); opacity: 0.6; font-weight: 700; position: relative; height: 15px; }
.heatmap-month-label { position: absolute; }
.heatmap-body { display: flex; gap: 5px; }
.heatmap-weekdays { position: relative; width: 25px; height: 108px; font-size: 10px; color: var(--text); opacity: 0.6; font-weight: 700; }
.heatmap-weekdays span { position: absolute; line-height: 12px; right: 0; }
.heatmap-grid { display: grid; grid-template-rows: repeat(7, 1fr); grid-auto-flow: column; gap: 4px; }
.heatmap-cell { width: 12px; height: 12px; border-radius: 3px; background: rgba(0,0,0,0.04); transition: background 0.3s; }
[data-theme="dark"] .heatmap-cell { background: rgba(255,255,255,0.04); }
.heatmap-cell.active-level-1 { background: color-mix(in srgb, var(--accent) 30%, transparent); }
.heatmap-cell.active-level-2 { background: color-mix(in srgb, var(--accent) 55%, transparent); }
.heatmap-cell.active-level-3 { background: color-mix(in srgb, var(--accent) 80%, transparent); }
.heatmap-cell.active-level-4 { background: var(--accent); box-shadow: 0 0 8px var(--accent); }

/* =========================================
   照片轮播 (Carousel)
========================================= */
.photo-carousel-card { 
    display: flex; align-items: center; justify-content: center; position: relative; 
    overflow: hidden; cursor: grab; touch-action: pan-y; perspective: 1000px;
    background: transparent !important; border: none !important; box-shadow: none !important; 
    padding: 40px 0 !important; 
    min-height: 280px;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
    mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}
.photo-carousel-card:active { cursor: grabbing; }
.carousel-track { position: relative; width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; transform-style: preserve-3d; }
.carousel-item { 
    position: absolute; 
    width: 60%; 
    max-width: 800px; 
    aspect-ratio: 16 / 9; 
    border-radius: 20px; object-fit: cover; 
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.8s; 
    box-shadow: 0 20px 40px rgba(0,0,0,0.4); 
    user-select: none; pointer-events: none; will-change: transform, opacity; 
}
.carousel-item.active { transform: translateX(0) scale(1); opacity: 1; z-index: 3; }
.carousel-item.prev { transform: translateX(-60%) scale(0.85); opacity: 0.5; z-index: 2; }
.carousel-item.next { transform: translateX(60%) scale(0.85); opacity: 0.5; z-index: 2; }
.carousel-item.hidden-left { transform: translateX(-120%) scale(0.7); opacity: 0; z-index: 1; }
.carousel-item.hidden-right { transform: translateX(120%) scale(0.7); opacity: 0; z-index: 1; }

/* =========================================
   访客与国旗墙 (Visitor Stats & Flags)
========================================= */
.visitor-stats-grid { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 15px; margin-top: 8px; border-top: 1px solid var(--glass-border); padding-top: 15px; font-family: monospace; font-size: 12px; opacity: 0.8; }
.visitor-stats-grid b { color: var(--accent); }
.flag-icon { display: inline-block; height: 12px; margin-left: 6px; border-radius: 2px; }
.visited-flag-icon { width:26px; height:18px; border-radius:3px; object-fit:cover; box-shadow:0 0 3px rgba(0,0,0,0.3); transition: transform 0.2s; }
.visited-flag-icon:hover { transform: scale(1.1); }

/* =========================================
   留言板 (Guestbook & Editor)
========================================= */
.ed-toolbar { display: flex; gap: 5px; margin-bottom: 8px; padding: 6px; background: rgba(0,0,0,0.03); border-radius: var(--radius-xs); flex-wrap: wrap; }
[data-theme="dark"] .ed-toolbar { background: rgba(255,255,255,0.03); }
.ed-btn { background: transparent; border: none; cursor: pointer; padding: 4px 10px; border-radius: 4px; color: var(--text); font-family: inherit; font-size: 13px; font-weight: 600; transition: background 0.2s; }
.ed-btn:hover { background: var(--glass-border); }

.gb-textarea { width: 100%; background: rgba(0,0,0,0.02); border: 1px solid var(--glass-border); border-radius: var(--radius-sm); padding: 15px; color: var(--text); font-family: inherit; font-size: 14px; outline: none; transition: border-color 0.3s, background 0.3s; min-height: 100px; max-height: 300px; overflow-y: auto; }
[data-theme="dark"] .gb-textarea { background: rgba(255,255,255,0.02); }
.gb-textarea:focus { border-color: var(--accent); background: rgba(0,0,0,0.04); }
[data-theme="dark"] .gb-textarea:focus { background: rgba(255,255,255,0.04); }
.gb-textarea[contenteditable]:empty:before { content: attr(placeholder); color: var(--text); opacity: 0.5; pointer-events: none; display: block; }
.gb-textarea pre { background: rgba(0,0,0,0.05); padding: 8px; border-radius: 6px; font-family: monospace; white-space: pre-wrap; font-size: 12px; }
[data-theme="dark"] .gb-textarea pre { background: rgba(255,255,255,0.08); }
.gb-textarea blockquote { border-left: 4px solid var(--accent); margin: 5px 0; padding-left: 10px; color: inherit; opacity: 0.8; background: linear-gradient(90deg, rgba(108,92,231,0.05), transparent); border-radius: 0 4px 4px 0; }

.gb-file-btn { background: rgba(0,0,0,0.05); border: 1px solid var(--glass-border); padding: 10px 15px; border-radius: var(--radius-xs); cursor: pointer; font-size: 12px; font-weight: bold; color: var(--text); display: inline-flex; align-items: center; gap: 8px; transition: all 0.2s; }
[data-theme="dark"] .gb-file-btn { background: rgba(255,255,255,0.05); }
.gb-file-btn:hover { background: var(--accent); color: white; border-color: var(--accent); }

#gb-file-list { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }
.file-item { display: flex; align-items: center; gap: 10px; font-size: 12px; background: rgba(0,0,0,0.03); padding: 8px 12px; border-radius: var(--radius-xs); }
[data-theme="dark"] .file-item { background: rgba(255,255,255,0.03); }

.progress-wrapper { display: inline-flex; align-items: center; justify-content: center; position: relative; width: 22px; height: 22px; flex-shrink: 0; }
.progress-ring { width: 100%; height: 100%; border-radius: 50%; border: 2.5px solid rgba(0,0,0,0.1); border-top-color: var(--accent); animation: spin 1s linear infinite; }
[data-theme="dark"] .progress-ring { border-color: rgba(255,255,255,0.1); border-top-color: var(--accent); }
.progress-pct { position: absolute; font-size: 7.5px; font-weight: 800; color: var(--accent); }
.progress-done { color: var(--color-success); font-weight: 900; font-size: 15px; }

/* =========================================
   通用控件 (Forms, Buttons, Toggles)
========================================= */
.switch { position: relative; display: inline-block; width: 46px; height: 24px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; inset: 0; background-color: rgba(0,0,0,0.1); border-radius: 30px; transition: 0.3s; }
.slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 3px; background: white; border-radius: 50%; transition: transform 0.3s; }
input:checked + .slider { background-color: var(--accent); }
input:checked + .slider:before { transform: translateX(22px); }

.master-btn { background: var(--accent); color: white; padding: 18px; border-radius: 22px; border: none; font-weight: 800; cursor: pointer; width: 100%; transition: opacity 0.2s, background 0.3s; }
.master-btn:disabled { opacity: 0.5; cursor: not-allowed !important; }

.pretty-input { width: 100%; padding: 14px; background: rgba(0,0,0,0.04); border-radius: var(--radius-sm); border: 1px solid transparent; color: var(--text); font-family: inherit; box-sizing: border-box; outline: none; transition: box-shadow 0.2s, border-color 0.2s; }
[data-theme="dark"] .pretty-input { background: rgba(255,255,255,0.04); }
.pretty-input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 20%, transparent); }

label.section-title { margin: 0; font-size: 10px; font-weight: 900; color: var(--accent); text-transform: uppercase; }

.skeleton { background: var(--glass-border) !important; color: transparent !important; animation: pulse-skeleton 1.5s infinite ease-in-out; pointer-events: none; }

.toast { background: var(--glass); backdrop-filter: blur(16px); border-radius: 16px; padding: 16px 20px; color: var(--text); font-weight: 600; transform: translate3d(120%, 0, 0); opacity: 0; transition: transform 0.4s, opacity 0.4s; display: flex; align-items: center; gap: 12px; pointer-events: auto; }
.toast.is-show { transform: translate3d(0, 0, 0); opacity: 1; }

/* =========================================
   移动端响应式覆写 (Mobile Overrides)
========================================= */
@media screen and (max-width: 768px) {
    .photo-carousel-card {
        min-height: 220px;
        padding: 10px 0 !important;
        -webkit-mask-image: linear-gradient(to right, transparent 0%, black 5%, black 95%, transparent 100%);
    }
    .carousel-item { width: 75%; }
    .card { padding: 25px 20px; border-radius: var(--radius-md); }
    .steam-box { padding: 20px 15px; border-radius: 20px; min-height: 80px; }
    .steam-text-container { font-size: 16px; }
    #live-corner-info { bottom: 8px; right: 12px; font-size: 10px; }
    #login-modal .card { width: 90% !important; padding: 30px 20px !important; }
}