/* ============================================================
   AppleCMS AI Tech Theme · 芒果片库风格 + 科技霓虹
   ============================================================ */
:root {
    --bg: #0b0c12;
    --bg2: #12141c;
    --panel: rgba(18, 20, 30, 0.95);
    --card: rgba(22, 26, 40, 0.8);
    --line: rgba(255, 255, 255, 0.08);
    --text: #f0f2f8;
    --muted: #8b93a8;
    --accent: #8b5cf6;
    --accent2: #06b6d4;
    --mango: #ff6b00;
    --radius: 10px;
    --radius-lg: 14px;
    --header-h: 58px;
    --bottom-h: 60px;
    --shadow: 0 10px 32px rgba(0,0,0,.4);
    --glow: 0 0 24px color-mix(in srgb, var(--accent) 35%, transparent);
    --font: "PingFang SC", "SF Pro Display", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.ai-body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; transition: color .15s; }
a:hover { color: #fff; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
.muted { color: var(--muted); }

/* ===== Header (mgtv-like top bar) ===== */
.ai-header {
    position: sticky; top: 0; z-index: 50;
    height: var(--header-h);
    background: rgba(11, 12, 18, 0.88);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
}
.ai-header-inner {
    max-width: 1400px;
    margin: 0 auto;
    height: 100%;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 18px;
}
.ai-logo {
    flex-shrink: 0;
    font-weight: 800;
    font-size: 20px;
    color: var(--text);
    display: flex;
    align-items: center;
}
.ai-logo img { height: 30px; }
.ai-logo-text {
    background: linear-gradient(135deg, #c4b5fd, #67e8f9);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.ai-channel-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    scrollbar-width: none;
}
.ai-channel-nav::-webkit-scrollbar { display: none; }
.ai-channel-nav a {
    flex-shrink: 0;
    padding: 6px 12px;
    border-radius: 6px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 500;
    position: relative;
}
.ai-channel-nav a:hover { color: var(--text); }
.ai-channel-nav a.on {
    color: #fff;
}
.ai-channel-nav a.on::after {
    content: '';
    position: absolute;
    left: 12px; right: 12px; bottom: 0;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
}
.ai-search {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,.06);
    border: 1px solid var(--line);
    border-radius: 999px;
    overflow: hidden;
    min-width: 160px;
    max-width: 260px;
}
.ai-search input {
    border: 0; background: transparent;
    padding: 7px 12px; color: var(--text);
    font-size: 13px; outline: none; min-width: 0; width: 100%;
}
.ai-search input::placeholder { color: var(--muted); }
.ai-search button {
    border: 0; background: transparent;
    color: var(--muted); padding: 7px 12px; font-size: 13px;
}
.ai-search button:hover { color: #fff; }
.ai-header-user {
    display: flex; align-items: center; gap: 10px; flex-shrink: 0;
}
.ai-user-link { color: var(--muted); font-size: 13px; }
.ai-user-link:hover { color: #fff; }
.ai-menu-btn {
    display: none;
    width: 36px; height: 36px;
    border: 0; background: transparent;
    flex-direction: column; justify-content: center; gap: 5px;
}
.ai-menu-btn span {
    display: block; height: 2px; width: 20px;
    background: var(--text); border-radius: 2px;
}

/* Drawer mobile */
.ai-drawer {
    position: fixed; top: 0; left: 0; bottom: 0;
    width: 260px; z-index: 60;
    background: var(--panel);
    border-right: 1px solid var(--line);
    transform: translateX(-100%);
    transition: transform .25s ease;
    padding: 20px 0;
    overflow-y: auto;
}
body.ai-drawer-open .ai-drawer { transform: translateX(0); }
.ai-drawer-mask {
    display: none;
    position: fixed; inset: 0; z-index: 55;
    background: rgba(0,0,0,.5);
}
body.ai-drawer-open .ai-drawer-mask { display: block; }
.ai-drawer-nav { display: flex; flex-direction: column; padding: 0 12px; }
.ai-drawer-nav a {
    padding: 12px 14px; border-radius: 8px;
    color: var(--muted); font-size: 15px;
}
.ai-drawer-nav a:hover { color: #fff; background: rgba(255,255,255,.04); }

/* Main */
.ai-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 16px 20px 48px;
    min-height: calc(100vh - var(--header-h) - 120px);
}

/* Buttons */
.ai-btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 8px 18px; border-radius: 999px;
    background: linear-gradient(135deg, var(--accent), #6366f1);
    color: #fff !important; font-size: 13px; font-weight: 600;
    border: none; box-shadow: 0 4px 14px rgba(139,92,246,.3);
}
.ai-btn-primary:hover { filter: brightness(1.08); color: #fff !important; }
.ai-btn-primary.sm { padding: 5px 12px; font-size: 12px; }
.ai-btn-ghost {
    display: inline-flex; padding: 8px 14px;
    border-radius: 999px; border: 1px solid var(--line);
    color: var(--muted); font-size: 13px; background: transparent;
}
.ai-btn-ghost:hover { color: #fff; border-color: var(--accent); }

/* ===== Filters (mgtv lib style) ===== */
.ai-lib { }
.ai-filters {
    background: rgba(18, 20, 30, 0.6);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 14px 18px;
    margin-bottom: 18px;
}
.ai-filter-row {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255,255,255,.04);
}
.ai-filter-row:last-child { border-bottom: 0; }
.ai-filter-label {
    flex: 0 0 48px;
    color: var(--muted);
    font-size: 13px;
    line-height: 28px;
    white-space: nowrap;
}
.ai-filter-choices {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 4px;
    flex: 1;
}
.ai-filter-choices a {
    padding: 4px 12px;
    border-radius: 999px;
    color: var(--muted);
    font-size: 13px;
    transition: all .15s;
}
.ai-filter-choices a:hover {
    color: #fff;
    background: rgba(255,255,255,.06);
}
.ai-filter-choices a.on {
    color: #fff;
    background: linear-gradient(135deg, var(--accent), #6366f1);
    box-shadow: 0 2px 10px rgba(139,92,246,.35);
}
.ai-lib-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}
.ai-lib-count { color: var(--muted); font-size: 13px; }
.ai-page-title { margin: 0; font-size: 20px; font-weight: 700; }

/* Grid - denser like mgtv */
.ai-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 18px 14px;
}
.ai-lib-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
}

/* Card */
.ai-card { display: flex; flex-direction: column; gap: 8px; }
.ai-card-cover {
    position: relative;
    aspect-ratio: 2/3;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg2);
    display: block;
    transition: transform .2s, box-shadow .2s;
}
.ai-card-cover img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform .35s;
}
.ai-card:hover .ai-card-cover {
    transform: translateY(-3px);
    box-shadow: var(--glow), var(--shadow);
}
.ai-card:hover .ai-card-cover img { transform: scale(1.05); }
.ai-card-placeholder {
    position: absolute; inset: 0;
    display: none; align-items: center; justify-content: center;
    color: var(--muted); font-size: 13px; background: var(--bg2);
}
.ai-card-cover.empty .ai-card-placeholder { display: flex; }
.ai-card-play {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,.4);
    opacity: 0; transition: opacity .2s; color: #fff;
}
.ai-card:hover .ai-card-play { opacity: 1; }
.ai-card-score {
    position: absolute; top: 6px; left: 6px;
    padding: 2px 6px; border-radius: 4px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: #fff; font-size: 11px; font-weight: 700; font-style: normal;
}
.ai-card-badge {
    position: absolute; top: 6px; right: 6px;
    padding: 2px 6px; border-radius: 4px;
    background: var(--mango);
    color: #fff; font-size: 11px; font-style: normal; font-weight: 600;
}
.ai-card-glow { display: none; }
.ai-card-meta h3 {
    margin: 0; font-size: 14px; font-weight: 600; line-height: 1.35;
    display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.ai-card-meta h3 a { color: var(--text); }
.ai-card-meta h3 a:hover { color: var(--accent); }
.ai-card-meta p {
    margin: 2px 0 0; font-size: 12px; color: var(--muted);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* Sections (home) */
.ai-sec { margin-bottom: 32px; }
.ai-sec-head {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 14px;
}
.ai-sec-head h2 {
    margin: 0; font-size: 18px; font-weight: 700;
    display: flex; align-items: center; gap: 6px;
}
.ai-sec-icon {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.ai-more { color: var(--muted); font-size: 13px; }
.ai-more:hover { color: var(--accent2); }

/* Hero simplified for home */
.ai-hero {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 24px;
    aspect-ratio: 21/8;
    min-height: 200px;
    max-height: 340px;
    background: var(--bg2);
}
.ai-hero-track { position: relative; width: 100%; height: 100%; }
.ai-hero-slide {
    position: absolute; inset: 0;
    opacity: 0; pointer-events: none;
    transition: opacity .5s; display: block; color: inherit;
}
.ai-hero-slide.on { opacity: 1; pointer-events: auto; }
.ai-hero-bg { position: absolute; inset: 0; }
.ai-hero-bg img { width: 100%; height: 100%; object-fit: cover; filter: brightness(.7); }
.ai-hero-mask {
    position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(11,12,18,.9) 0%, rgba(11,12,18,.4) 50%, transparent 75%),
                linear-gradient(0deg, rgba(11,12,18,.7), transparent 45%);
}
.ai-hero-info {
    position: absolute; left: 36px; bottom: 32px; right: 40%; z-index: 2;
}
.ai-hero-tag {
    display: inline-block; padding: 2px 10px; border-radius: 4px;
    background: var(--mango); font-size: 12px; font-weight: 600; color: #fff;
    margin-bottom: 8px;
}
.ai-hero-info h2 {
    margin: 0 0 8px; font-size: clamp(20px, 2.8vw, 28px); font-weight: 800;
}
.ai-hero-info p {
    margin: 0 0 14px; color: var(--muted); font-size: 13px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.ai-hero-btn {
    display: inline-flex; padding: 9px 20px; border-radius: 999px;
    background: linear-gradient(135deg, var(--accent), #6366f1);
    color: #fff; font-weight: 600; font-size: 13px;
}
.ai-hero-dots {
    position: absolute; bottom: 14px; right: 20px;
    display: flex; gap: 6px; z-index: 3;
}
.ai-hero-dots button {
    width: 7px; height: 7px; border-radius: 50%;
    border: 0; background: rgba(255,255,255,.3); cursor: pointer;
}
.ai-hero-dots button.on {
    width: 18px; border-radius: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
}
.ai-chips { margin-bottom: 24px; }
.ai-chips-scroll {
    display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none;
}
.ai-chips-scroll::-webkit-scrollbar { display: none; }
.ai-chip {
    flex: 0 0 auto; padding: 6px 14px; border-radius: 999px;
    background: rgba(255,255,255,.05); border: 1px solid var(--line);
    color: var(--muted); font-size: 13px;
}
.ai-chip:hover, .ai-chip.more {
    color: #fff; border-color: color-mix(in srgb, var(--accent) 40%, transparent);
}

/* Topic / Art */
.ai-topic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
}
.ai-topic-cover {
    position: relative; display: block;
    aspect-ratio: 16/9; border-radius: var(--radius);
    overflow: hidden; background: var(--bg2);
}
.ai-topic-cover img { width: 100%; height: 100%; object-fit: cover; }
.ai-topic-placeholder {
    position: absolute; inset: 0; display: none;
    align-items: center; justify-content: center; color: var(--muted);
}
.ai-topic-cover.empty .ai-topic-placeholder { display: flex; }
.ai-topic-cover em {
    position: absolute; bottom: 6px; right: 6px;
    padding: 2px 6px; border-radius: 4px;
    background: rgba(0,0,0,.7); color: #fff; font-size: 11px; font-style: normal;
}
.ai-topic-meta { padding: 8px 2px 0; }
.ai-topic-meta h3 { margin: 0; font-size: 14px; }
.ai-topic-meta h3 a { color: var(--text); }
.ai-topic-meta p { margin: 3px 0 0; font-size: 12px; color: var(--muted); }

.ai-art-list { display: grid; gap: 10px; }
.ai-art-item {
    display: flex; gap: 12px; align-items: center;
    padding: 10px; border-radius: var(--radius);
    background: var(--card); border: 1px solid var(--line);
}
.ai-art-item img {
    width: 96px; height: 60px; object-fit: cover; border-radius: 6px; flex-shrink: 0;
}
.ai-art-item h3 {
    margin: 0 0 4px; font-size: 14px; color: var(--text);
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.ai-art-item time { font-size: 12px; color: var(--muted); }

/* Detail */
.ai-detail {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 28px;
    margin-bottom: 28px;
}
.ai-detail-cover {
    aspect-ratio: 2/3; border-radius: var(--radius);
    overflow: hidden; background: var(--bg2); position: relative;
}
.ai-detail-cover img { width: 100%; height: 100%; object-fit: cover; }
.ai-detail-cover-empty {
    position: absolute; inset: 0; display: none;
    align-items: center; justify-content: center; color: var(--muted);
}
.ai-detail-cover.empty .ai-detail-cover-empty { display: flex; }
.ai-detail-main h1 { margin: 0 0 12px; font-size: 24px; font-weight: 800; }
.ai-detail-tags {
    list-style: none; padding: 0; margin: 0 0 12px;
    display: flex; flex-wrap: wrap; gap: 6px;
}
.ai-detail-tags li {
    padding: 3px 10px; border-radius: 6px;
    background: rgba(255,255,255,.05); border: 1px solid var(--line);
    font-size: 12px; color: var(--muted);
}
.ai-detail-tags li a { color: var(--muted); }
.ai-detail-tags li.hi { color: var(--accent2); }
.ai-detail-tags li.score {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: #fff; border: none; font-weight: 700;
}
.ai-detail-row { margin: 0 0 8px; font-size: 14px; }
.ai-detail-row .label { color: var(--muted); margin-right: 8px; }
.ai-detail-row a { color: var(--text); }
.ai-detail-actions { display: flex; gap: 10px; margin: 16px 0; flex-wrap: wrap; }
.ai-detail-desc {
    font-size: 14px; color: var(--muted); line-height: 1.7;
    padding: 12px; border-radius: var(--radius);
    background: var(--card); border: 1px solid var(--line);
}
.ai-ep-block { margin-bottom: 16px; }
.ai-ep-line { margin: 0 0 8px; font-size: 14px; color: var(--muted); }
.ai-ep-list { display: flex; flex-wrap: wrap; gap: 8px; }
.ai-ep-item {
    padding: 6px 12px; border-radius: 6px;
    background: rgba(255,255,255,.04); border: 1px solid var(--line);
    color: var(--text); font-size: 13px;
}
.ai-ep-item:hover, .ai-ep-item.on {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 18%, transparent);
    color: #fff;
}

/* Play */
.ai-play-head { margin-bottom: 14px; }
.ai-play-head h1 { margin: 0 0 4px; font-size: 18px; }
.ai-play-head h1 a { color: var(--text); }
.ai-player {
    position: relative; aspect-ratio: 16/9;
    background: #000; border-radius: var(--radius);
    overflow: hidden; margin-bottom: 18px;
}
.ai-player-frame { width: 100%; height: 100%; border: 0; }
.ai-player-empty {
    position: absolute; inset: 0;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 10px; color: var(--muted);
}

/* Auth / Member */
.ai-auth-page { max-width: 880px; margin: 20px auto; }
.ai-auth-shell {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 0; border-radius: var(--radius-lg); overflow: hidden;
    border: 1px solid var(--line); background: var(--card);
}
.ai-auth-aside {
    padding: 36px 28px;
    background: linear-gradient(160deg, rgba(139,92,246,.2), rgba(6,182,212,.1));
}
.ai-auth-brand { font-weight: 800; font-size: 18px; margin: 0 0 16px; }
.ai-auth-aside h2 { margin: 0 0 10px; font-size: 22px; }
.ai-auth-card { padding: 32px 28px; }
.ai-auth-head h1 { margin: 0 0 4px; font-size: 20px; }
.ai-auth-form { display: grid; gap: 14px; margin-top: 18px; }
.ai-field { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.ai-field input, .ai-field textarea, .ai-field select {
    width: 100%; padding: 10px 12px; border-radius: 8px;
    border: 1px solid var(--line); background: var(--bg);
    color: var(--text); font-size: 14px; outline: none;
}
.ai-field input:focus, .ai-field textarea:focus {
    border-color: color-mix(in srgb, var(--accent) 55%, transparent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent);
}
.ai-member-page { }
.ai-member-shell {
    display: grid; grid-template-columns: 200px 1fr; gap: 20px;
}
.ai-member-nav {
    display: flex; flex-direction: column; gap: 4px;
    padding: 12px; border-radius: var(--radius);
    background: var(--card); border: 1px solid var(--line);
}
.ai-member-nav a {
    padding: 10px 12px; border-radius: 8px; color: var(--muted); font-size: 14px;
}
.ai-member-nav a:hover, .ai-member-nav a.active {
    color: #fff; background: color-mix(in srgb, var(--accent) 15%, transparent);
}
.ai-member-main { }
.ai-member-card {
    padding: 16px; border-radius: var(--radius);
    background: var(--card); border: 1px solid var(--line); margin-bottom: 14px;
}

/* Footer */
.ai-footer {
    border-top: 1px solid var(--line);
    padding: 24px 20px 36px;
    background: rgba(0,0,0,.2);
}
.ai-footer-inner { max-width: 1400px; margin: 0 auto; }
.ai-flink {
    display: flex; flex-wrap: wrap; gap: 8px 14px;
    margin-bottom: 14px; font-size: 13px;
}
.ai-flink a { color: var(--muted); }
.ai-foot-meta {
    display: flex; flex-wrap: wrap; gap: 10px 18px;
    justify-content: space-between; font-size: 13px; color: var(--muted);
}
.ai-foot-links { display: flex; gap: 14px; }
.ai-foot-links a { color: var(--muted); }

/* Bottom nav */
.ai-bottom-nav {
    display: none;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
    height: calc(var(--bottom-h) + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: rgba(11,12,18,.92);
    backdrop-filter: blur(18px);
    border-top: 1px solid rgba(139,92,246,.2);
    justify-content: space-around;
    align-items: flex-start;
    padding-top: 6px;
}
.ai-bn-item {
    flex: 1; max-width: 72px;
    display: flex; flex-direction: column; align-items: center; gap: 2px;
    color: var(--muted); font-size: 11px;
}
.ai-bn-item.active { color: #c4b5fd; }
.ai-bn-item.active svg { filter: drop-shadow(0 0 6px rgba(139,92,246,.6)); }
.ai-bn-search .ai-bn-search-btn {
    width: 44px; height: 44px; border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    display: flex; align-items: center; justify-content: center;
    color: #fff; margin-top: -16px;
    box-shadow: 0 4px 16px rgba(139,92,246,.4);
    border: 2px solid rgba(255,255,255,.1);
}

/* Gotop / Flash / Toast */
.ai-gotop {
    position: fixed; right: 16px; bottom: 24px; z-index: 45;
    width: 40px; height: 40px; border-radius: 10px;
    border: 1px solid var(--line); background: rgba(18,20,30,.9);
    color: var(--text); opacity: 0; pointer-events: none;
    transform: translateY(8px); transition: .2s;
}
.ai-gotop.on { opacity: 1; pointer-events: auto; transform: none; }
.ai-flash {
    padding: 10px 14px; border-radius: 8px; margin-bottom: 14px;
    font-size: 13px; border: 1px solid;
}
.ai-flash.ok { background: rgba(6,182,212,.1); border-color: rgba(6,182,212,.3); color: #67e8f9; }
.ai-flash.err { background: rgba(239,68,68,.1); border-color: rgba(239,68,68,.3); color: #fca5a5; }
.ai-toast {
    position: fixed; left: 50%; top: 18%; transform: translateX(-50%);
    z-index: 100; padding: 10px 20px; border-radius: 8px;
    background: rgba(18,20,30,.95); border: 1px solid var(--line);
    color: var(--text); font-size: 13px; box-shadow: var(--shadow);
}
.ai-paginate { margin-top: 24px; display: flex; justify-content: center; }
.ai-paginate nav, .ai-paginate .pagination { display: flex; gap: 6px; flex-wrap: wrap; }
.ai-paginate a, .ai-paginate span {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 34px; height: 34px; padding: 0 8px;
    border-radius: 6px; border: 1px solid var(--line);
    color: var(--muted); font-size: 13px;
}
.ai-paginate a:hover, .ai-paginate .active span {
    border-color: var(--accent); color: #fff;
    background: color-mix(in srgb, var(--accent) 18%, transparent);
}
.ai-comment-box { }
.ai-comment-form { margin-bottom: 16px; display: grid; gap: 10px; }
.ai-comment-item {
    padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px;
}
.ai-comment-item strong { margin-right: 8px; }
.ai-comment-item p { margin: 6px 0 0; color: var(--text); }

/* Responsive */
@media (max-width: 900px) {
    .ai-channel-nav { display: none; }
    .ai-menu-btn { display: flex; }
    .ai-header-user .ai-btn-primary { display: none; }
    .ai-search { max-width: none; flex: 1; }
    .ai-auth-shell { grid-template-columns: 1fr; }
    .ai-auth-aside { display: none; }
    .ai-member-shell { grid-template-columns: 1fr; }
    .ai-member-nav { flex-direction: row; flex-wrap: wrap; }
}
@media (max-width: 720px) {
    .ai-bottom-nav { display: flex; }
    body.ai-body { padding-bottom: calc(var(--bottom-h) + env(safe-area-inset-bottom, 0px)); }
    .ai-gotop { bottom: calc(var(--bottom-h) + 14px + env(safe-area-inset-bottom, 0px)); }
    .ai-main { padding: 12px 12px 28px; }
    .ai-detail { grid-template-columns: 110px 1fr; gap: 14px; }
    .ai-detail-main h1 { font-size: 17px; }
    .ai-hero { aspect-ratio: 16/9; max-height: 220px; }
    .ai-hero-info { left: 14px; right: 14px; bottom: 16px; }
    .ai-hero-info p { display: none; }
    .ai-grid, .ai-lib-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px 8px;
    }
    .ai-card-meta h3 { font-size: 12px; }
    .ai-filter-label { flex: 0 0 40px; font-size: 12px; }
    .ai-filter-choices a { padding: 3px 10px; font-size: 12px; }
}


/* ===== Member Center Redesign ===== */
.mc { max-width: 1100px; margin: 0 auto; }
.mc-hero {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 20px;
    border: 1px solid var(--line);
}
.mc-hero-bg {
    position: absolute; inset: 0;
    background:
        radial-gradient(600px 200px at 10% 0%, color-mix(in srgb, var(--accent) 35%, transparent), transparent 60%),
        radial-gradient(400px 180px at 90% 100%, color-mix(in srgb, var(--accent2) 20%, transparent), transparent 50%),
        linear-gradient(135deg, #12141c, #0e1018);
}
.mc-hero-body {
    position: relative;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 28px 24px;
    flex-wrap: wrap;
}
.mc-avatar {
    width: 64px; height: 64px; border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    display: flex; align-items: center; justify-content: center;
    font-size: 26px; font-weight: 800; color: #fff;
    box-shadow: 0 4px 20px rgba(139,92,246,.4);
    flex-shrink: 0;
}
.mc-hero-info { flex: 1; min-width: 160px; }
.mc-hero-info h1 {
    margin: 0 0 6px; font-size: 22px; font-weight: 800;
}
.mc-hero-desc { margin: 0; color: var(--muted); font-size: 13px; }
.mc-vip-badge {
    display: inline-block; margin-top: 8px;
    padding: 3px 10px; border-radius: 999px;
    background: linear-gradient(90deg, #f59e0b, #ef4444);
    color: #fff; font-size: 12px; font-weight: 600;
}
.mc-points-box {
    text-align: center;
    padding: 14px 22px;
    border-radius: 12px;
    background: rgba(255,255,255,.05);
    border: 1px solid var(--line);
    min-width: 100px;
}
.mc-points-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.mc-points-num {
    font-size: 28px; font-weight: 800;
    background: linear-gradient(135deg, #c4b5fd, #67e8f9);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* Quick nav */
.mc-nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    margin-bottom: 24px;
}
.mc-nav-item {
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    padding: 16px 10px;
    border-radius: 12px;
    background: var(--card);
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 13px;
    transition: all .18s;
}
.mc-nav-item:hover {
    color: #fff;
    border-color: color-mix(in srgb, var(--accent) 40%, transparent);
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    transform: translateY(-2px);
}
.mc-nav-ico {
    width: 40px; height: 40px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(139,92,246,.12);
    font-size: 18px;
}

/* Content grid */
.mc-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}
.mc-card {
    padding: 20px;
    border-radius: 14px;
    background: var(--card);
    border: 1px solid var(--line);
}
.mc-card-title {
    margin: 0 0 16px;
    font-size: 16px; font-weight: 700;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}
.mc-form { display: grid; gap: 12px; }
.mc-form .ai-btn-primary { justify-self: start; margin-top: 4px; }

.mc-invite-code {
    padding: 12px 16px;
    border-radius: 10px;
    background: rgba(139,92,246,.1);
    border: 1px dashed color-mix(in srgb, var(--accent) 40%, transparent);
    margin-bottom: 10px;
}
.mc-invite-code code {
    font-size: 18px; font-weight: 700; letter-spacing: .08em;
    color: #c4b5fd;
}
.mc-invite-url { font-size: 13px; word-break: break-all; margin: 0 0 8px; }
.mc-invite-stats { font-size: 13px; margin: 0 0 12px; }

.mc-list, .mc-rank-list {
    list-style: none; padding: 0; margin: 0;
}
.mc-list li, .mc-rank-list li {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,.04);
    font-size: 14px;
}
.mc-list li:last-child, .mc-rank-list li:last-child { border-bottom: 0; }
.mc-rank-num {
    width: 24px; height: 24px; border-radius: 6px;
    background: rgba(139,92,246,.15);
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 700; color: #c4b5fd;
    flex-shrink: 0;
}
.mc-rank-list li:nth-child(1) .mc-rank-num { background: linear-gradient(135deg, #f59e0b, #ef4444); color: #fff; }
.mc-rank-list li:nth-child(2) .mc-rank-num { background: linear-gradient(135deg, #94a3b8, #64748b); color: #fff; }
.mc-rank-list li:nth-child(3) .mc-rank-num { background: linear-gradient(135deg, #b45309, #92400e); color: #fff; }
.mc-rank-name { flex: 1; }
.mc-rank-count { color: var(--muted); font-size: 13px; }

.mc-logout { text-align: center; padding: 8px 0 20px; }
.mc-page-head {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px;
}
.mc-page-head h1 { margin: 0; font-size: 20px; }
.mc-empty {
    text-align: center; padding: 60px 20px;
    color: var(--muted);
}
.mc-empty .ai-btn-primary { margin-top: 16px; }

/* Plugin menu links inside mc-nav-grid (mall/pay etc inject <a>) */
.mc-nav-grid > a {
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    padding: 16px 10px;
    border-radius: 12px;
    background: var(--card);
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 13px;
    transition: all .18s;
}
.mc-nav-grid > a:hover {
    color: #fff;
    border-color: color-mix(in srgb, var(--accent) 40%, transparent);
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    transform: translateY(-2px);
}

@media (max-width: 720px) {
    .mc-grid { grid-template-columns: 1fr; }
    .mc-hero-body { flex-direction: column; align-items: flex-start; }
    .mc-points-box { width: 100%; display: flex; align-items: center; justify-content: space-between; }
    .mc-points-num { font-size: 22px; }
    .mc-nav-grid { grid-template-columns: repeat(4, 1fr); gap: 8px; }
    .mc-nav-item, .mc-nav-grid > a { padding: 12px 6px; font-size: 12px; }
    .mc-nav-ico { width: 34px; height: 34px; font-size: 15px; }
}
@media (max-width: 400px) {
    .mc-nav-grid { grid-template-columns: repeat(3, 1fr); }
}


/* ===== Auth pages (login / register) ===== */
.auth-wrap {
    max-width: 920px;
    margin: 24px auto 40px;
    padding: 0 12px;
}
.auth-panel {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--card);
    box-shadow: 0 20px 50px rgba(0,0,0,.35);
}
.auth-side {
    position: relative;
    background:
        radial-gradient(400px 220px at 20% 10%, color-mix(in srgb, var(--accent) 40%, transparent), transparent 60%),
        radial-gradient(300px 180px at 80% 90%, color-mix(in srgb, var(--accent2) 25%, transparent), transparent 55%),
        linear-gradient(160deg, #14162a, #0c0e18);
    padding: 40px 32px;
    display: flex;
    align-items: center;
}
.auth-side-inner { position: relative; z-index: 1; }
.auth-brand {
    margin: 0 0 16px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    background: linear-gradient(135deg, #c4b5fd, #67e8f9);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.auth-side h2 {
    margin: 0 0 12px;
    font-size: 26px;
    font-weight: 800;
    line-height: 1.3;
}
.auth-side p {
    margin: 0 0 20px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.65;
}
.auth-features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 10px;
}
.auth-features li {
    position: relative;
    padding-left: 22px;
    font-size: 13px;
    color: #c8cde0;
}
.auth-features li::before {
    content: '';
    position: absolute;
    left: 0; top: 6px;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    box-shadow: 0 0 10px rgba(139,92,246,.5);
}
.auth-main {
    padding: 36px 32px 40px;
}
.auth-head { margin-bottom: 22px; }
.auth-head h1 {
    margin: 0 0 6px;
    font-size: 22px;
    font-weight: 800;
}
.auth-head .muted { margin: 0; font-size: 13px; }
.auth-form {
    display: grid;
    gap: 14px;
}
.auth-remember {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
    cursor: pointer;
}
.auth-remember input {
    width: 15px; height: 15px;
    accent-color: var(--accent);
}
.auth-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-top: 6px;
}
.auth-submit {
    min-width: 120px;
    padding: 11px 22px;
    font-size: 14px;
}
.auth-social {
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
}
.auth-social > .muted {
    margin: 0 0 10px;
    font-size: 12px;
}

@media (max-width: 720px) {
    .auth-panel { grid-template-columns: 1fr; }
    .auth-side { padding: 28px 22px 20px; }
    .auth-side h2 { font-size: 22px; }
    .auth-features { display: none; }
    .auth-main { padding: 24px 20px 32px; }
    .auth-wrap { margin: 12px auto 28px; }
}