/* ============================================================
   CYBER.CSS — 赛博朋克共享设计系统
   Tokens · 背景 · 顶栏导航 · 按钮 · 玻璃卡片 · 表单 · 表格
   Toast · Lightbox · 骨架 · 空状态 · 响应式
   应用 ui-ux-pro-max 规则：语义 token / 对比度 / 触控目标 /
   transform-opacity 动画 / reduced-motion 降级
   ============================================================ */

:root {
    /* —— 霓虹原色 —— */
    --neon-cyan: #00F0FF;
    --neon-pink: #FF006E;
    --neon-yellow: #FFBE0B;
    --neon-green: #39FF14;
    --cyber-purple: #B537F2;

    /* —— 表面 / 背景 —— */
    --dark-bg: #0A0E27;
    --dark-surface: #141B34;
    --dark-elevated: #1E2749;
    --grid-color: rgba(0, 240, 255, 0.12);

    /* —— 语义 token —— */
    --color-primary: var(--neon-cyan);
    --color-accent: var(--neon-pink);
    --color-danger: #FF4D6D;
    --color-success: var(--neon-green);
    --color-warning: var(--neon-yellow);
    --surface: var(--dark-surface);
    --surface-elevated: var(--dark-elevated);
    --border-soft: rgba(0, 240, 255, 0.22);
    --border-strong: rgba(0, 240, 255, 0.55);
    --text: #EAF6FF;
    --text-muted: rgba(234, 246, 255, 0.62);
    --text-faint: rgba(234, 246, 255, 0.35);

    /* —— 玻璃拟态 —— */
    --glass-bg: rgba(20, 27, 52, 0.62);
    --glass-blur: 14px;

    /* —— 字体 —— */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Noto Sans SC', sans-serif;

    /* —— 辉光 —— */
    --glow-cyan: 0 0 18px rgba(0, 240, 255, 0.55), 0 0 38px rgba(0, 240, 255, 0.32);
    --glow-pink: 0 0 18px rgba(255, 0, 110, 0.55), 0 0 38px rgba(255, 0, 110, 0.32);
    --glow-yellow: 0 0 18px rgba(255, 190, 11, 0.55), 0 0 38px rgba(255, 190, 11, 0.32);

    /* —— 间距节奏 (4/8) —— */
    --sp-1: 0.25rem; --sp-2: 0.5rem; --sp-3: 0.75rem; --sp-4: 1rem;
    --sp-5: 1.5rem; --sp-6: 2rem; --sp-8: 3rem;

    --radius: 10px;
    --nav-h: 68px;

    /* —— z-index 层级 —— */
    --z-bg: 0; --z-content: 2; --z-nav: 100; --z-overlay: 9000; --z-toast: 10001;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--dark-bg);
    color: var(--text);
    min-height: 100dvh;
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
::selection { background: rgba(0, 240, 255, 0.3); color: #fff; }

/* —— 滚动条 —— */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--dark-surface); }
::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--neon-cyan), var(--cyber-purple));
    border-radius: 6px;
}

/* ============================================================
   背景层：网格 + 扫描线 + 粒子 canvas
   ============================================================ */
.cyber-grid {
    position: fixed; inset: 0; z-index: var(--z-bg);
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 48px 48px;
    transform: perspective(600px) rotateX(58deg) translateZ(-60px) scale(2.4);
    transform-origin: center top;
    opacity: 0.5;
    animation: gridScroll 18s linear infinite;
    pointer-events: none;
}
@keyframes gridScroll { 0% { background-position: 0 0; } 100% { background-position: 0 48px; } }

.scanlines {
    position: fixed; inset: 0; z-index: 1; pointer-events: none;
    background: repeating-linear-gradient(
        0deg, rgba(0, 240, 255, 0.025) 0px, transparent 1px, transparent 3px, rgba(0, 240, 255, 0.025) 4px);
    mix-blend-mode: screen;
}

#bgParticles {
    position: fixed; inset: 0; z-index: 1; pointer-events: none;
    width: 100%; height: 100%;
}

.vignette {
    position: fixed; inset: 0; z-index: 1; pointer-events: none;
    background: radial-gradient(ellipse at center, transparent 55%, rgba(5, 7, 20, 0.7) 100%);
}

/* ============================================================
   顶栏导航 — navigation-consistency / nav-state-active
   ============================================================ */
.cyber-nav {
    position: sticky; top: 0; z-index: var(--z-nav);
    height: var(--nav-h);
    display: flex; align-items: center; justify-content: space-between;
    gap: var(--sp-4);
    padding: 0 clamp(1rem, 4vw, 2.5rem);
    background: rgba(10, 14, 39, 0.82);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--border-soft);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.45);
}

.nav-brand { display: flex; align-items: center; gap: var(--sp-3); flex-shrink: 0; }
.nav-logo {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--cyber-purple));
    clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--glow-cyan);
    color: #051018;
}
.nav-logo svg { width: 22px; height: 22px; }
.nav-title {
    font-family: var(--font-display); font-weight: 900; font-size: 1.1rem;
    text-transform: uppercase; letter-spacing: 1.5px;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    white-space: nowrap;
}

.nav-links { display: flex; align-items: center; gap: var(--sp-2); flex: 1; justify-content: center; }
.nav-link {
    display: flex; align-items: center; gap: var(--sp-2);
    min-height: 44px; padding: 0 var(--sp-4);
    border-radius: var(--radius);
    color: var(--text-muted); font-weight: 600; font-size: 0.92rem;
    border: 1px solid transparent;
    transition: color .2s ease, background .2s ease, border-color .2s ease;
}
.nav-link svg { width: 18px; height: 18px; opacity: 0.9; }
.nav-link:hover { color: var(--text); background: rgba(0, 240, 255, 0.06); }
.nav-link.active {
    color: var(--neon-cyan);
    background: rgba(0, 240, 255, 0.1);
    border-color: var(--border-strong);
    box-shadow: inset 0 0 14px rgba(0, 240, 255, 0.15);
}

.nav-user { display: flex; align-items: center; gap: var(--sp-3); flex-shrink: 0; }
.user-chip {
    display: flex; align-items: center; gap: var(--sp-2);
    height: 44px; padding: 0 var(--sp-3);
    background: var(--surface-elevated);
    border: 1px solid var(--border-soft); border-radius: var(--radius);
}
.user-chip .avatar {
    width: 26px; height: 26px; border-radius: 50%;
    background: linear-gradient(135deg, var(--neon-pink), var(--cyber-purple));
    display: flex; align-items: center; justify-content: center;
    font-size: 0.8rem; font-weight: 700; color: #fff;
}
.user-chip .uname { font-weight: 600; font-size: 0.9rem; max-width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-chip .quota {
    font-family: var(--font-display); font-weight: 700; color: var(--neon-yellow);
    font-variant-numeric: tabular-nums; padding-left: var(--sp-2);
    border-left: 1px solid var(--border-soft);
}
.user-chip .quota.low { color: var(--neon-pink); }

/* 退出按钮 — destructive-nav-separation */
.btn-logout {
    height: 44px; min-width: 44px; padding: 0 var(--sp-3);
    background: rgba(255, 77, 109, 0.1);
    border: 1px solid var(--color-danger); border-radius: var(--radius);
    color: var(--color-danger); font-weight: 600; cursor: pointer;
    display: flex; align-items: center; gap: var(--sp-2);
    transition: background .2s ease, color .2s ease;
}
.btn-logout:hover { background: var(--color-danger); color: #fff; }
.btn-logout svg { width: 18px; height: 18px; }

/* 移动端汉堡 */
.nav-toggle { display: none; background: none; border: none; color: var(--text); cursor: pointer; width: 44px; height: 44px; }
.nav-toggle svg { width: 26px; height: 26px; }

/* ============================================================
   布局容器
   ============================================================ */
.page {
    position: relative; z-index: var(--z-content);
    max-width: 1320px; margin: 0 auto;
    padding: clamp(1.25rem, 4vw, 2.5rem);
}
.page-head { margin-bottom: var(--sp-6); }
.page-title {
    font-family: var(--font-display); font-weight: 900;
    font-size: clamp(1.6rem, 4vw, 2.4rem); text-transform: uppercase; letter-spacing: 2px;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink), var(--neon-yellow));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.page-sub { color: var(--text-muted); margin-top: var(--sp-2); font-weight: 300; }
.section-title {
    font-family: var(--font-display); font-weight: 700; font-size: 1.15rem;
    text-transform: uppercase; letter-spacing: 1.5px; color: var(--neon-cyan);
    margin-bottom: var(--sp-4); display: flex; align-items: center; gap: var(--sp-2);
}
.section-title::before { content: ''; width: 4px; height: 18px; background: var(--neon-pink); box-shadow: var(--glow-pink); }

/* ============================================================
   玻璃卡片 / 面板
   ============================================================ */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-soft);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), inset 0 0 0 1px rgba(255, 255, 255, 0.03);
    clip-path: polygon(0 14px, 14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
    padding: var(--sp-5);
}
.panel { background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: var(--sp-5); }

/* ============================================================
   按钮
   ============================================================ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
    min-height: 48px; padding: 0 var(--sp-5);
    font-family: var(--font-display); font-weight: 700; font-size: 0.9rem;
    text-transform: uppercase; letter-spacing: 1px; cursor: pointer;
    border: 2px solid var(--neon-cyan); color: var(--text);
    background: linear-gradient(135deg, var(--dark-elevated), var(--dark-surface));
    clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
    position: relative; overflow: hidden;
}
.btn svg { width: 18px; height: 18px; }
.btn:hover { transform: translateY(-2px); box-shadow: var(--glow-cyan); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; box-shadow: none; }
.btn:focus-visible { outline: 3px solid var(--neon-yellow); outline-offset: 2px; }

.btn-primary { border-color: var(--neon-cyan); background: linear-gradient(135deg, rgba(0,240,255,0.18), rgba(181,55,242,0.18)); }
.btn-pink { border-color: var(--neon-pink); }
.btn-pink:hover { box-shadow: var(--glow-pink); }
.btn-ghost { background: transparent; border-color: var(--border-strong); }
.btn-danger { border-color: var(--color-danger); color: var(--color-danger); }
.btn-danger:hover { background: var(--color-danger); color: #fff; box-shadow: 0 0 18px rgba(255,77,109,0.6); }
.btn-block { width: 100%; }
.btn-sm { min-height: 40px; padding: 0 var(--sp-4); font-size: 0.78rem; }

/* ============================================================
   表单 — input-labels / focus-states / inline-validation
   ============================================================ */
.field { display: flex; flex-direction: column; gap: var(--sp-2); margin-bottom: var(--sp-4); }
.field label {
    font-family: var(--font-display); font-size: 0.72rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 1.2px; color: var(--neon-yellow);
}
.field label .req { color: var(--neon-pink); margin-left: 2px; }
.input, .select, .textarea {
    width: 100%; min-height: 48px; padding: var(--sp-3) var(--sp-4);
    background: var(--surface-elevated); color: var(--text);
    border: 2px solid var(--border-soft); border-radius: 8px;
    font-family: var(--font-body); font-size: 1rem;
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.textarea { min-height: 120px; resize: vertical; line-height: 1.6; }
.input::placeholder, .textarea::placeholder { color: var(--text-faint); }
.input:focus, .select:focus, .textarea:focus {
    outline: none; border-color: var(--neon-pink);
    box-shadow: 0 0 0 3px rgba(255, 0, 110, 0.2); background: rgba(255, 0, 110, 0.04);
}
.select { cursor: pointer; appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2300F0FF' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right var(--sp-4) center; padding-right: 2.5rem;
}
.field-hint { font-size: 0.78rem; color: var(--text-muted); }
.field-error { font-size: 0.8rem; color: var(--color-danger); display: none; }
.field.invalid .input, .field.invalid .select, .field.invalid .textarea { border-color: var(--color-danger); }
.field.invalid .field-error { display: block; }

/* 数量步进 */
.stepper { display: flex; align-items: stretch; gap: var(--sp-2); }
.stepper button {
    width: 48px; min-height: 48px; font-size: 1.4rem; font-weight: 700;
    background: var(--surface-elevated); color: var(--neon-cyan);
    border: 2px solid var(--border-soft); border-radius: 8px; cursor: pointer;
    transition: border-color .2s, color .2s;
}
.stepper button:hover { border-color: var(--neon-cyan); }
.stepper input { text-align: center; font-family: var(--font-display); font-weight: 700; font-variant-numeric: tabular-nums; }
.range { width: 100%; accent-color: var(--neon-cyan); height: 44px; }

/* ============================================================
   表格 — number-tabular / sortable
   ============================================================ */
.table-wrap { overflow-x: auto; border: 1px solid var(--border-soft); border-radius: var(--radius); }
table.cyber-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.cyber-table th {
    text-align: left; padding: var(--sp-3) var(--sp-4);
    font-family: var(--font-display); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 1px;
    color: var(--neon-cyan); background: var(--surface-elevated); border-bottom: 1px solid var(--border-strong);
    white-space: nowrap; position: sticky; top: 0;
}
.cyber-table td { padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid rgba(255,255,255,0.05); color: var(--text-muted); }
.cyber-table td.num { font-variant-numeric: tabular-nums; text-align: right; }
.cyber-table tr:last-child td, .cyber-table tbody tr:last-child td { border-bottom: none; }
.cyber-table tbody tr { transition: background .15s ease; }
.cyber-table tbody tr:hover { background: rgba(0, 240, 255, 0.04); }

/* 标签徽章 */
.badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 10px; border-radius: 999px; font-size: 0.72rem; font-weight: 700;
    font-family: var(--font-display); letter-spacing: 0.5px;
    border: 1px solid currentColor;
}
.badge svg { width: 12px; height: 12px; }
.badge-deduct { color: var(--neon-pink); }
.badge-recharge, .badge-refund, .badge-set { color: var(--neon-green); }
.badge-role { color: var(--neon-yellow); }
.badge-status-active { color: var(--neon-green); }
.badge-status-banned { color: var(--color-danger); }

/* ============================================================
   图片卡片网格 (生图/图库/收藏)
   ============================================================ */
.grid { display: grid; gap: var(--sp-4); }
.grid-cards { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

.img-card {
    background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius);
    overflow: hidden; cursor: pointer;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    display: flex; flex-direction: column;
}
.img-card:hover { transform: translateY(-6px); box-shadow: var(--glow-cyan); border-color: var(--border-strong); }
.img-card .thumb { width: 100%; aspect-ratio: 1; object-fit: cover; background: var(--surface-elevated); display: block; }
.img-card .meta { padding: var(--sp-3); display: flex; flex-direction: column; gap: var(--sp-2); }
.img-card .meta .pmt { font-size: 0.8rem; color: var(--text-muted); line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.img-card .actions { display: flex; gap: var(--sp-2); }
.img-card .actions .btn { flex: 1; }

/* ============================================================
   稀有度（抽卡用，亦可被收藏卡复用）
   ============================================================ */
.rarity-N   { --rr: #9aa7c7; }
.rarity-R   { --rr: var(--neon-cyan); }
.rarity-SR  { --rr: var(--cyber-purple); }
.rarity-SSR { --rr: var(--neon-yellow); }
.rarity-UR  { --rr: var(--neon-pink); }
.rarity-badge {
    position: absolute; top: 10px; right: 10px; z-index: 5;
    font-family: var(--font-display); font-weight: 900; font-size: 0.72rem;
    padding: 3px 10px; color: #05101a; background: var(--rr, var(--neon-cyan));
    clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
    box-shadow: 0 0 16px var(--rr, var(--neon-cyan));
}

/* ============================================================
   Toast — toast-accessibility (aria-live)
   ============================================================ */
.toast-stack { position: fixed; top: calc(var(--nav-h) + 12px); right: 16px; z-index: var(--z-toast); display: flex; flex-direction: column; gap: var(--sp-2); max-width: min(380px, 90vw); }
.toast {
    padding: var(--sp-3) var(--sp-4); border-radius: 8px; font-weight: 600; font-size: 0.92rem;
    border: 1px solid var(--neon-cyan); background: var(--surface-elevated); color: var(--text);
    box-shadow: 0 8px 28px rgba(0,0,0,0.5); display: flex; align-items: center; gap: var(--sp-2);
    animation: toastIn .35s cubic-bezier(.2,.9,.3,1.3);
}
.toast svg { width: 18px; height: 18px; flex-shrink: 0; }
.toast.success { border-color: var(--neon-green); color: var(--neon-green); }
.toast.error { border-color: var(--color-danger); color: var(--color-danger); }
@keyframes toastIn { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
.toast.out { animation: toastOut .3s ease forwards; }
@keyframes toastOut { to { opacity: 0; transform: translateX(40px); } }

/* ============================================================
   Lightbox — modal-motion / escape-routes
   ============================================================ */
.lightbox {
    position: fixed; inset: 0; z-index: 9500;
    background: rgba(5, 7, 20, 0.92); backdrop-filter: blur(8px);
    display: none; align-items: center; justify-content: center; padding: var(--sp-5);
}
.lightbox.active { display: flex; animation: lbIn .3s ease; }
@keyframes lbIn { from { opacity: 0; } to { opacity: 1; } }
.lightbox img { max-width: 92vw; max-height: 82vh; border: 2px solid var(--neon-cyan); box-shadow: var(--glow-cyan); border-radius: 6px; }
.lightbox .lb-close { position: fixed; top: 18px; right: 18px; width: 48px; height: 48px; }
.lightbox .lb-bar { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; gap: var(--sp-3); }

/* ============================================================
   骨架 / 空状态 / 加载
   ============================================================ */
.skeleton { background: linear-gradient(100deg, var(--surface-elevated) 30%, rgba(0,240,255,0.08) 50%, var(--surface-elevated) 70%); background-size: 200% 100%; animation: shimmer 1.3s linear infinite; border-radius: 8px; }
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
.skeleton-card { aspect-ratio: 1; }

.empty-state {
    grid-column: 1 / -1; text-align: center; padding: var(--sp-8) var(--sp-5);
    border: 1px dashed var(--border-soft); border-radius: var(--radius);
    color: var(--text-muted); background: rgba(20, 27, 52, 0.4);
}
.empty-state svg { width: 56px; height: 56px; opacity: 0.5; margin-bottom: var(--sp-3); color: var(--neon-cyan); }
.empty-state h3 { font-family: var(--font-display); color: var(--text); margin-bottom: var(--sp-2); font-weight: 700; }

.spinner { width: 22px; height: 22px; border: 3px solid rgba(0,240,255,0.25); border-top-color: var(--neon-cyan); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* 进度条 */
.progress { width: 100%; height: 10px; background: var(--surface-elevated); border-radius: 6px; overflow: hidden; border: 1px solid var(--border-soft); }
.progress .bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink)); transition: width .4s ease; box-shadow: var(--glow-cyan); }

/* 仪表（额度环形 via conic-gradient） */
.gauge { width: 160px; height: 160px; border-radius: 50%; display: grid; place-items: center; position: relative;
    background: conic-gradient(var(--neon-cyan) calc(var(--pct, 0) * 1%), var(--surface-elevated) 0); }
.gauge::before { content: ''; position: absolute; inset: 14px; border-radius: 50%; background: var(--dark-surface); }
.gauge .gauge-val { position: relative; text-align: center; }
.gauge .gauge-val b { font-family: var(--font-display); font-size: 1.8rem; color: var(--neon-cyan); font-variant-numeric: tabular-nums; }
.gauge .gauge-val span { display: block; font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

/* 统计小卡 */
.stat { display: flex; flex-direction: column; gap: var(--sp-1); padding: var(--sp-4); background: var(--surface-elevated); border: 1px solid var(--border-soft); border-radius: var(--radius); }
.stat .k { font-size: 0.74rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.stat .v { font-family: var(--font-display); font-size: 1.5rem; font-weight: 800; color: var(--neon-yellow); font-variant-numeric: tabular-nums; }

/* ============================================================
   认证页（登录/注册）居中卡片
   ============================================================ */
.auth-wrap { min-height: 100dvh; display: grid; place-items: center; padding: var(--sp-5); position: relative; z-index: var(--z-content); }
.auth-card { width: 100%; max-width: 420px; }
.auth-card .brand { text-align: center; margin-bottom: var(--sp-5); }
.auth-card .brand .nav-logo { width: 56px; height: 56px; margin: 0 auto var(--sp-3); }
.auth-foot { text-align: center; margin-top: var(--sp-4); color: var(--text-muted); font-size: 0.9rem; }
.auth-foot a { color: var(--neon-cyan); font-weight: 600; }

/* ============================================================
   工具类
   ============================================================ */
.row { display: flex; gap: var(--sp-4); flex-wrap: wrap; }
.row.between { justify-content: space-between; align-items: center; }
.col { display: flex; flex-direction: column; gap: var(--sp-4); }
.grow { flex: 1; }
.hidden { display: none !important; }
.mt-4 { margin-top: var(--sp-4); } .mt-6 { margin-top: var(--sp-6); }
.text-muted { color: var(--text-muted); }
.toolbar { display: flex; gap: var(--sp-3); flex-wrap: wrap; align-items: center; margin-bottom: var(--sp-5); }
.toolbar .grow { min-width: 200px; }

/* ============================================================
   响应式 — adaptive-navigation / mobile-first
   ============================================================ */
@media (max-width: 900px) {
    .nav-links {
        position: fixed; top: var(--nav-h); left: 0; right: 0;
        flex-direction: column; align-items: stretch; gap: 0;
        background: rgba(10, 14, 39, 0.97); backdrop-filter: blur(var(--glass-blur));
        border-bottom: 1px solid var(--border-soft);
        padding: var(--sp-2); transform: translateY(-12px); opacity: 0; pointer-events: none;
        transition: transform .25s ease, opacity .25s ease; max-height: calc(100dvh - var(--nav-h)); overflow-y: auto;
    }
    .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .nav-link { min-height: 50px; border-radius: 8px; }
    .nav-toggle { display: flex; align-items: center; justify-content: center; }
    .user-chip .uname { display: none; }
}
@media (max-width: 560px) {
    .grid-cards { grid-template-columns: repeat(2, 1fr); }
    .nav-title { display: none; }
}

/* ============================================================
   抽卡揭示 overlay (gacha-fx.js)
   ============================================================ */
.gacha-overlay {
    position: fixed; inset: 0; z-index: var(--z-overlay);
    background: rgba(5, 7, 20, 0.94); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    display: none; align-items: center; justify-content: center; padding: var(--sp-5);
    overflow-y: auto;
}
.gacha-overlay.active { display: flex; flex-direction: column; }
.gacha-overlay #fxCanvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 1; }

.summon-core {
    position: absolute; top: 50%; left: 50%; width: 140px; height: 140px; margin: -70px 0 0 -70px;
    border-radius: 50%; z-index: 2; pointer-events: none;
    background: radial-gradient(circle, rgba(0,240,255,0.9), rgba(181,55,242,0.4) 50%, transparent 70%);
    box-shadow: 0 0 80px rgba(0,240,255,0.8), 0 0 140px rgba(255,0,110,0.5);
}
.summon-core::before {
    content: ''; position: absolute; inset: 18px; border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.7);
    clip-path: polygon(50% 0, 60% 40%, 100% 50%, 60% 60%, 50% 100%, 40% 60%, 0 50%, 40% 40%);
}

.gacha-skip {
    position: fixed; top: calc(var(--nav-h) + 12px); right: 18px; z-index: 6;
}
.gacha-flash { position: absolute; inset: 0; background: #fff; opacity: 0; pointer-events: none; z-index: 4; }
.gacha-hint { position: relative; z-index: 5; margin-top: var(--sp-5); color: var(--text-muted); font-size: 0.9rem; text-align: center; }

.gacha-stage { position: relative; z-index: 3; display: grid; gap: clamp(0.75rem, 2vw, 1.5rem); width: 100%; max-width: 1200px; perspective: 1400px; margin: auto; }
.gacha-stage.single { grid-template-columns: minmax(0, 340px); justify-content: center; }
.gacha-stage.multi { grid-template-columns: repeat(5, 1fr); }

.gcard { position: relative; aspect-ratio: 2/3; transform-style: preserve-3d; cursor: pointer; will-change: transform, opacity; }
.gcard-inner { position: relative; width: 100%; height: 100%; }
.gcard-face { position: absolute; inset: 0; border-radius: 10px; overflow: hidden; backface-visibility: hidden; }
.gcard-back {
    background: linear-gradient(135deg, var(--cyber-purple), var(--neon-pink));
    border: 2px solid rgba(255,255,255,0.3); display: none;
}
.gcard-front {
    border: 2px solid var(--rr, var(--neon-cyan));
    box-shadow: 0 0 28px color-mix(in srgb, var(--rr, var(--neon-cyan)) 60%, transparent), inset 0 0 0 1px rgba(255,255,255,0.06);
    background: var(--surface-elevated);
}
.gcard.revealed .gcard-front { animation: cardGlow 2.4s ease-in-out infinite; }
@keyframes cardGlow {
    0%,100% { box-shadow: 0 0 24px color-mix(in srgb, var(--rr, var(--neon-cyan)) 55%, transparent); }
    50% { box-shadow: 0 0 42px color-mix(in srgb, var(--rr, var(--neon-cyan)) 85%, transparent); }
}
.gcard-img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gcard-beam {
    position: absolute; left: -4%; width: 108%; height: 4px; top: 0; opacity: 0; pointer-events: none;
    background: linear-gradient(90deg, transparent, var(--rr, #00F0FF), #fff, var(--rr, #00F0FF), transparent);
    box-shadow: 0 0 16px var(--rr, #00F0FF), 0 0 30px var(--rr, #00F0FF); transform: translateY(-50%);
}
.gcard-grain {
    position: absolute; inset: 0; pointer-events: none; opacity: 0.12; mix-blend-mode: overlay;
    background-image: repeating-linear-gradient(0deg, rgba(255,255,255,0.5) 0 1px, transparent 1px 3px);
}

@media (max-width: 900px) { .gacha-stage.multi { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 520px) { .gacha-stage.multi { grid-template-columns: repeat(2, 1fr); } }

/* ============================================================
   reduced-motion 降级 — reduced-motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
    .cyber-grid { animation: none; }
}