/* ===== CSS 变量 ===== */
        :root, [data-theme="dark"] {
            --bg: #0a0e1a; --bg2: #0f1424;
            --card: rgba(255,255,255,0.03); --border: rgba(99,102,241,0.12);
            --border-h: rgba(99,102,241,0.3); --text: #c5c7d0;
            --text2: #6b7294; --text3: #8b8fa3; --title: #fff;
            --accent: #6366f1; --accent2: #a855f7;
            --card-hover: rgba(99,102,241,0.06); --overlay: rgba(0,0,0,0.7);
            --panel: #111827; --scrollbar: #6366f1;
            --dot-color: rgba(99,102,241,0.04);
        }
        [data-theme="light"] {
            --bg: #f0f2f8; --bg2: #e8ebf4;
            --card: rgba(255,255,255,0.85); --border: rgba(99,102,241,0.1);
            --border-h: rgba(99,102,241,0.3); --text: #374151;
            --text2: #6b7280; --text3: #9ca3af; --title: #111827;
            --accent: #6366f1; --accent2: #a855f7;
            --card-hover: rgba(99,102,241,0.05); --overlay: rgba(0,0,0,0.35);
            --panel: #fff; --scrollbar: #6366f1;
            --dot-color: rgba(99,102,241,0.07);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; font-family: "Microsoft YaHei", sans-serif; }

        body {
            background: var(--bg); color: var(--text);
            padding-bottom: 90px; padding-top: 100px;
            min-height: 100vh; position: relative; touch-action: manipulation;
        }
        body::before {
            content: ''; position: fixed; inset: 0;
            background-image: radial-gradient(var(--dot-color) 1px, transparent 1px);
            background-size: 24px 24px; pointer-events: none; z-index: 0;
        }
        body::after {
            content: ''; position: fixed; inset: 0;
            background:
                radial-gradient(ellipse 600px 400px at 20% 20%, rgba(99,102,241,0.08) 0%, transparent 70%),
                radial-gradient(ellipse 500px 350px at 80% 80%, rgba(168,85,247,0.06) 0%, transparent 70%);
            pointer-events: none; z-index: 0;
        }
        .body-wrap { position: relative; z-index: 1; }
        body::-webkit-scrollbar { width: 4px !important; }
        body::-webkit-scrollbar-track { background: transparent !important; }
        body::-webkit-scrollbar-thumb { background: var(--scrollbar) !important; border-radius: 2px !important; }
        body.modal-open { overflow: hidden !important; }

        .loading { text-align: center; padding: 60px 20px; font-size: 16px; color: var(--text2); }
        .loader-spin {
            width: 24px; height: 24px; border: 2px solid var(--border);
            border-top: 2px solid var(--accent); border-radius: 50%;
            animation: spin 0.8s linear infinite; margin: 0 auto 12px;
        }
        @keyframes spin { 0%{transform:rotate(0deg)} 100%{transform:rotate(360deg)} }

        .page-container { max-width: 900px; margin: 0 auto; padding: 0 15px; display: none; }

        /* 标题 */
        .page-header { text-align: center; margin-bottom: 24px; }
        .page-header h1 {
            font-size: 26px; font-weight: 800; margin-bottom: 6px;
            background: linear-gradient(135deg, #6366f1, #a855f7);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .page-header .sub { font-size: 13px; color: var(--text2); }

        /* ===== Tab 切换栏（与 PC 顶部导航 pill 样式一致） ===== */
        .tab-bar {
            display: flex; gap: 4px; padding: 4px; margin: 0 auto 22px;
            width: fit-content;
            background: rgba(125,125,125,0.08); border-radius: 999px;
            position: sticky; top: 90px; z-index: 50;
        }
        .tab-item {
            padding: 8px 20px; border: none; background: transparent;
            color: var(--text3); font-size: 13px; font-weight: 600;
            border-radius: 999px; cursor: pointer; transition: all 0.25s ease;
            white-space: nowrap;
        }
        .tab-item:hover { color: var(--title); background: rgba(255,255,255,0.1); }
        .tab-item.active {
            color: var(--title);
            background: rgba(255,255,255,0.13);
        }
        [data-theme="light"] .tab-item:hover { background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
        [data-theme="light"] .tab-item.active { background: #fff; color: var(--title); box-shadow: 0 2px 8px rgba(0,0,0,0.06); }

        /* Tab 内容面板 */
        .tab-panel { display: none; animation: fadeIn 0.3s ease; }
        .tab-panel.active { display: block; }
        @keyframes fadeIn { from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:translateY(0)} }

        /* 面板描述 */
        .panel-desc {
            font-size: 14px; color: var(--text); line-height: 1.7;
            padding: 14px 16px; border-radius: 12px; margin-bottom: 12px;
            background: var(--card); border: 1px solid var(--border);
            border-left: 3px solid #0ea5e9;
        }

        /* 重置按钮栏 */
        .reset-bar {
            display: flex; justify-content: flex-end; margin-bottom: 16px;
        }
        .reset-btn {
            padding: 8px 16px; border-radius: 8px; cursor: pointer;
            font-size: 13px; font-weight: 600; transition: all 0.2s;
            display: inline-flex; align-items: center; gap: 6px;
            background: rgba(255,255,255,0.08); color: var(--text);
            border: 1px solid var(--border); backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px); text-decoration: none;
        }
        .reset-btn:hover { background: rgba(255,255,255,0.14); border-color: var(--border-h); transform: translateY(-1px); }
        [data-theme="light"] .reset-btn { background: rgba(255,255,255,0.6); }
        [data-theme="light"] .reset-btn:hover { background: rgba(255,255,255,0.9); }
        .reset-btn i { font-size: 15px; }

        /* 信息卡片 */
        .info-card {
            background: var(--card); border: 1px solid var(--border);
            border-radius: 14px; padding: 20px; backdrop-filter: blur(10px);
            margin-bottom: 16px;
        }
        .info-row {
            display: flex; align-items: center; justify-content: space-between;
            gap: 12px; padding: 12px 14px; border-radius: 10px;
            background: var(--card-hover); border: 1px solid var(--border);
            margin-bottom: 10px;
        }
        .info-row:last-child { margin-bottom: 0; }
        .info-label { font-size: 13px; color: var(--text2); flex-shrink: 0; }
        .info-value { font-size: 14px; color: var(--text); flex: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
        .btn {
            padding: 8px 16px; border: none; border-radius: 8px; cursor: pointer;
            font-size: 13px; font-weight: 600; transition: all 0.2s; white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, #0ea5e9, #2563eb); color: #fff;
            box-shadow: 0 2px 10px rgba(37,99,235,0.3);
        }
        .btn-primary:hover { box-shadow: 0 4px 16px rgba(37,99,235,0.5); transform: translateY(-1px); }
        .btn-ghost {
            background: var(--card-hover); color: var(--text); border: 1px solid var(--border);
        }
        .btn-ghost:hover { border-color: #0ea5e9; color: #0ea5e9; }
        .btn-group { display: flex; gap: 8px; flex-shrink: 0; }

        /* ===== 视图切换栏 ===== */
        .view-toolbar {
            display: flex; align-items: center; justify-content: space-between;
            margin-bottom: 16px; gap: 12px;
        }
        .view-switch {
            display: flex; gap: 2px; padding: 3px;
            background: var(--card); border: 1px solid var(--border);
            border-radius: 10px;
        }
        .view-btn {
            padding: 7px 12px; border: none; background: transparent;
            color: var(--text3); font-size: 12px; font-weight: 600;
            border-radius: 7px; cursor: pointer; transition: all 0.2s;
            display: flex; align-items: center; gap: 5px;
        }
        .view-btn:hover { color: var(--text); }
        .view-btn.active {
            color: #fff;
            background: linear-gradient(135deg, #0ea5e9, #2563eb);
            box-shadow: 0 2px 8px rgba(37,99,235,0.3);
        }
        .view-btn i { font-size: 15px; }
        .view-count { font-size: 12px; color: var(--text2); }

        /* ===== 大图模式（网格卡片） ===== */
        .template-grid {
            display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 14px;
        }
        .grid-card {
            background: var(--card); border: 1px solid var(--border);
            border-radius: 14px; overflow: hidden; backdrop-filter: blur(10px);
            transition: all 0.3s; cursor: pointer; display: flex; flex-direction: column;
        }
        .grid-card:hover {
            border-color: #0ea5e9; transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(14,165,233,0.15);
        }
        .grid-card-img {
            width: 100%; aspect-ratio: 9/16; object-fit: cover;
            background: var(--bg2); display: block;
            transition: transform 0.4s;
        }
        .grid-card:hover .grid-card-img { transform: scale(1.04); }
        .grid-card-body {
            padding: 10px 12px; display: flex; align-items: center;
            justify-content: space-between; gap: 8px;
        }
        .grid-card-name {
            font-size: 13px; color: var(--title); font-weight: 600;
            flex: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
        }
        .grid-card-btn {
            flex-shrink: 0; padding: 5px 11px; border-radius: 7px;
            background: rgba(255,255,255,0.08); color: var(--text);
            border: 1px solid var(--border); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
            cursor: pointer; display: flex; align-items: center;
            justify-content: center; font-size: 12px; font-weight: 600; transition: all 0.2s;
            white-space: nowrap;
        }
        .grid-card-btn:hover { background: rgba(255,255,255,0.14); border-color: var(--border-h); transform: translateY(-1px); }
        [data-theme="light"] .grid-card-btn { background: rgba(255,255,255,0.6); }
        [data-theme="light"] .grid-card-btn:hover { background: rgba(255,255,255,0.9); }

        /* ===== 列表模式（抽屉） ===== */
        .template-list { display: flex; flex-direction: column; gap: 10px; }
        .template-item {
            background: var(--card); border: 1px solid var(--border);
            border-radius: 14px; overflow: hidden; backdrop-filter: blur(10px);
            transition: border-color 0.3s; cursor: pointer;
        }
        .template-item:hover { border-color: #0ea5e9; }
        .template-head {
            display: flex; align-items: center; justify-content: space-between;
            padding: 14px 16px; gap: 12px;
        }
        .template-name { font-size: 15px; color: var(--title); font-weight: 600; flex: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
        .template-arrow { color: var(--text3); transition: transform 0.3s; flex-shrink: 0; }
        .template-item.open .template-arrow { transform: rotate(180deg); }
        .template-body { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
        .template-item.open .template-body { max-height: 800px; }
        .template-body img { width: 100%; max-width: 400px; margin: 0 auto; display: block; border-top: 1px solid var(--border); }

        /* 空状态 */
        .empty-state {
            text-align: center; padding: 60px 20px; color: var(--text2);
            min-height: 320px; display: flex; flex-direction: column;
            align-items: center; justify-content: center;
            grid-column: 1 / -1;
        }
        .empty-state i { font-size: 48px; color: var(--text3); margin-bottom: 12px; display: block; }
        .empty-state p { font-size: 14px; }

        /* ===== 预览弹窗 ===== */
        .preview-modal {
            position: fixed; inset: 0; background: var(--overlay); z-index: 9999;
            display: none; align-items: center; justify-content: center; backdrop-filter: blur(6px);
        }
        .preview-wrapper {
            width: 100%; max-width: 390px; height: 90vh; max-height: 844px;
            background: var(--panel); border: 1px solid var(--border);
            border-radius: 16px; overflow: hidden; position: relative;
            animation: slideUp 0.3s ease;
        }
        @keyframes slideUp { from{transform:translateY(30px);opacity:0} to{transform:translateY(0);opacity:1} }
        .close-btn {
            position: absolute; top: 10px; right: 10px; width: 36px; height: 36px;
            background: rgba(99,102,241,0.3); color: #fff; border-radius: 50%;
            font-size: 18px; border: none; cursor: pointer; z-index: 10; transition: all 0.2s;
        }
        .close-btn:hover { background: rgba(99,102,241,0.6); }
        .preview-iframe { width: 100%; height: 100%; border: none; }
        .frame-loading {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: var(--panel); display: flex; flex-direction: column;
            align-items: center; justify-content: center; font-size: 14px;
            color: var(--text2); z-index: 5; gap: 12px;
        }
        .frame-loading .loader-spin { margin: 0; }

        /* ===== 顶部导航 ===== */
        .navbar {
            position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
            width: 92%; max-width: 1100px; height: 60px; padding: 0 12px;
            display: grid; grid-template-columns: auto 1fr auto; align-items: center;
            background: color-mix(in srgb, var(--bg) 75%, transparent);
            backdrop-filter: blur(16px) saturate(180%); -webkit-backdrop-filter: blur(16px) saturate(180%);
            border: 1px solid var(--border); border-radius: 999px;
            z-index: 1000; transition: all 0.4s cubic-bezier(0.16,1,0.3,1);
            box-shadow: 0 8px 32px rgba(0,0,0,0.08);
        }
        .navbar.scrolled { top: 10px; width: 96%; box-shadow: 0 16px 48px rgba(0,0,0,0.12); }
        .nav-left { padding-left: 12px; display: flex; align-items: center; }
        .nav-logo {
            font-size: 18px; font-weight: 800; text-decoration: none;
            display: flex; align-items: center; gap: 10px;
            background: linear-gradient(135deg, #6366f1, #a855f7);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
        }
        .nav-logo-icon {
            width: 36px; height: 36px; background: linear-gradient(135deg, #6366f1, #a855f7);
            border-radius: 10px; display: flex; align-items: center; justify-content: center;
            color: #fff; font-size: 20px; box-shadow: 0 4px 12px rgba(99,102,241,0.5);
            transform: rotate(-5deg); transition: transform 0.3s;
            -webkit-background-clip: unset; -webkit-text-fill-color: unset;
        }
        .nav-logo:hover .nav-logo-icon { transform: rotate(0deg) scale(1.05); }
        .nav-center { display: flex; justify-content: center; }
        .nav-links { display: flex; gap: 4px; background: rgba(125,125,125,0.08); padding: 4px; border-radius: 999px; }
        .nav-links a {
            color: var(--text3); text-decoration: none; font-size: 13px; font-weight: 600;
            padding: 8px 20px; border-radius: 999px; transition: all 0.25s ease;
        }
        .nav-links a:hover { color: var(--title); background: rgba(255,255,255,0.1); }
        [data-theme="light"] .nav-links a:hover { background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
        .nav-right { display: flex; align-items: center; gap: 12px; padding-right: 4px; }
        .mobile-menu-btn {
            display: none; width: 40px; height: 40px;
            align-items: center; justify-content: center;
            font-size: 24px; color: var(--title); background: transparent; border: none; cursor: pointer;
        }
        .mobile-menu-overlay {
            position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
            background: rgba(0,0,0,0.8); backdrop-filter: blur(10px);
            z-index: 999; opacity: 0; pointer-events: none; transition: opacity 0.3s;
            display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px;
        }
        .mobile-menu-overlay.active { opacity: 1; pointer-events: all; }
        .mobile-menu-link {
            font-size: 24px; font-weight: 700; color: #fff; text-decoration: none;
            transform: translateY(20px); opacity: 0; transition: 0.4s;
        }
        .mobile-menu-overlay.active .mobile-menu-link { transform: translateY(0); opacity: 1; }
        .mobile-menu-overlay.active .mobile-menu-link:nth-child(1) { transition-delay: 0.1s; }
        .mobile-menu-overlay.active .mobile-menu-link:nth-child(2) { transition-delay: 0.2s; }

        /* ===== 右下角浮动区 ===== */
        .float-group { position: fixed; right: 20px; bottom: 20px; z-index: 100; display: flex; flex-direction: column; gap: 12px; align-items: center; }
        .fab-home {
            width: 52px; height: 52px; border-radius: 50%; background: var(--card);
            border: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
            text-decoration: none; color: var(--text3); transition: all 0.3s; font-size: 20px;
        }
        .fab-home:hover { border-color: var(--border-h); color: var(--accent); transform: scale(1.1); }
        /* 返回顶部按钮 */
        .back-top {
            width: 52px; height: 52px; border-radius: 50%;
            background: linear-gradient(135deg, #0ea5e9, #2563eb); color: #fff;
            border: none; display: flex; align-items: center; justify-content: center;
            cursor: pointer; transition: all 0.3s; font-size: 22px;
            box-shadow: 0 4px 18px rgba(37,99,235,0.4);
            opacity: 0; visibility: hidden; transform: translateY(20px);
        }
        .back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
        .back-top:hover { transform: translateY(-2px) scale(1.05); box-shadow: 0 6px 24px rgba(37,99,235,0.55); }
        .cs-fab {
            width: 52px; height: 52px; border-radius: 50%;
            background: linear-gradient(135deg, #6366f1, #a855f7);
            box-shadow: 0 4px 24px rgba(99,102,241,0.5);
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; border: none; transition: all 0.3s; position: relative;
        }
        .cs-fab:hover { transform: scale(1.1); box-shadow: 0 6px 32px rgba(99,102,241,0.6); }
        .cs-fab svg { width: 24px; height: 24px; fill: #e0e7ff; }
        .cs-fab .pulse { position: absolute; width: 52px; height: 52px; border-radius: 50%; background: rgba(99,102,241,0.25); animation: fabPulse 2s ease-out infinite; }
        @keyframes fabPulse { 0%{transform:scale(1);opacity:.5} 100%{transform:scale(1.8);opacity:0} }
        [data-theme="light"] .cs-fab { background: linear-gradient(135deg, #4f46e5, #7c3aed); box-shadow: 0 4px 24px rgba(79,70,229,0.4); }
        [data-theme="light"] .cs-fab svg { fill: #fff; }
        .mode-toggle {
            width: 52px; height: 52px; border-radius: 50%;
            background: var(--card); border: 1px solid var(--border);
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; transition: all 0.3s;
        }
        .mode-toggle:hover { border-color: var(--border-h); transform: scale(1.1); background: var(--card-hover); }
        .mode-toggle svg { width: 22px; height: 22px; transition: transform 0.4s ease; }
        .mode-toggle .icon-sun { display: none; }
        [data-theme="light"] .mode-toggle .icon-moon { display: none; }
        [data-theme="light"] .mode-toggle .icon-sun { display: block; fill: #f59e0b; }
        [data-theme="dark"] .mode-toggle .icon-moon { fill: #818cf8; }

        /* ===== 客服弹窗 ===== */
        .cs-modal { position: fixed; inset: 0; background: var(--overlay); z-index: 10001; display: none; align-items: center; justify-content: center; padding: 16px; backdrop-filter: blur(6px); }
        .cs-modal.show { display: flex; }
        .cs-panel { background: var(--panel); width: 100%; max-width: 380px; border-radius: 20px; border: 1px solid var(--border); animation: slideUp 0.3s ease; position: relative; }
        .cs-float-close {
            position: absolute; top: -14px; right: -14px; width: 36px; height: 36px;
            border-radius: 50%; background: var(--panel); border: 1px solid var(--border);
            color: var(--text2); font-size: 18px; cursor: pointer; z-index: 10;
            display: flex; align-items: center; justify-content: center;
            box-shadow: 0 4px 16px rgba(0,0,0,0.2); transition: all 0.2s;
        }
        .cs-float-close:hover { background: #6366f1; color: #fff; border-color: #6366f1; }
        .cs-body { padding: 20px; }
        .cs-time { background: rgba(99,102,241,0.06); border: 1px solid rgba(99,102,241,0.12); border-radius: 12px; padding: 12px; text-align: center; margin-bottom: 14px; }
        .cs-time .t1 { font-size: 13px; color: #818cf8; font-weight: 700; margin-bottom: 3px; }
        .cs-time .t2 { font-size: 12px; color: var(--text2); line-height: 1.5; }
        .cs-qr { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 16px; text-align: center; margin-bottom: 12px; }
        .cs-qr h4 { font-size: 14px; color: #818cf8; margin-bottom: 10px; }
        .cs-qr img { width: 120px; height: 120px; border-radius: 10px; border: 1px solid var(--border); margin-bottom: 8px; }
        .cs-qr-line { font-size: 14px; color: var(--title); font-weight: 700; display: flex; align-items: center; justify-content: center; gap: 8px; }
        .cs-qr-desc { font-size: 12px; color: var(--text2); margin-top: 4px; }
        .cs-info { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 12px; }
        .cs-row { display: flex; align-items: center; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 13px; color: var(--text); }
        .cs-row:last-child { border-bottom: none; }
        .cs-row strong { color: #818cf8; font-weight: 500; width: 72px; flex-shrink: 0; }
        .cs-row .val { flex: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
        .copy-btn { padding: 3px 8px; font-size: 11px; color: #818cf8; background: rgba(99,102,241,0.08); border: 1px solid rgba(99,102,241,0.2); border-radius: 6px; cursor: pointer; transition: all 0.2s; }
        .copy-btn:hover { background: #6366f1; color: #fff; }

        /* Toast */
        .msg-toast {
            position: fixed; top: 50%; left: 50%; transform: translate(-50%,-50%);
            background: rgba(99,102,241,0.9); color: #fff;
            padding: 12px 24px; border-radius: 10px; font-size: 14px;
            z-index: 99999; display: none; backdrop-filter: blur(8px); pointer-events: none;
        }

        @media (max-width: 768px) {
            .preview-wrapper { max-width: 100%; height: 100vh; border-radius: 0; }
            .float-group { right: 14px; bottom: 80px; }
            .navbar { grid-template-columns: auto 1fr; height: auto; padding: 12px 16px; border-radius: 24px; top: 10px; width: 94%; }
            .nav-center { display: none; }
            .nav-right { display: none; }
            .mobile-menu-btn { display: flex; }
            .tab-item { font-size: 12px; padding: 7px 14px; }
        }