/* ==========================================================================
   营养视界 NutriVision · 设计系统
   ========================================================================== */
:root {
    --primary: #10b981;
    --primary-dark: #059669;
    --primary-light: #d1fae5;
    --accent: #f97316;
    --accent-light: #ffedd5;
    --blue: #3b82f6;
    --blue-light: #dbeafe;
    --purple: #8b5cf6;
    --purple-light: #ede9fe;
    --red: #ef4444;
    --red-light: #fee2e2;
    --amber: #f59e0b;

    --bg: #f4f6fa;
    --card: #ffffff;
    --sidebar: #0f172a;
    --sidebar-hover: #1e293b;
    --border: #e6eaf0;
    --text: #0f172a;
    --text-2: #475569;
    --text-3: #94a3b8;

    --radius: 14px;
    --radius-sm: 9px;
    --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 8px 24px -12px rgba(15, 23, 42, .12);
    --shadow-lg: 0 20px 45px -20px rgba(15, 23, 42, .25);
    --sidebar-w: 244px;
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

/* ====================== 布局 ====================== */
.layout { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-w);
    background: var(--sidebar);
    color: #e2e8f0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; bottom: 0; left: 0;
    z-index: 60;
    transition: transform .28s ease;
}

.brand {
    display: flex; align-items: center; gap: 11px;
    padding: 20px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.brand-logo {
    width: 40px; height: 40px; flex: 0 0 40px;
    display: block; object-fit: contain;
}
.brand-text strong { display: block; font-size: 15.5px; letter-spacing: .3px; color: #fff; }
.brand-text small { color: #7c8ba1; font-size: 11px; }

.nav { flex: 1; overflow-y: auto; padding: 14px 10px 20px; }
.nav-group {
    font-size: 10.5px; text-transform: uppercase; letter-spacing: 1.1px;
    color: #64748b; padding: 14px 12px 7px; font-weight: 600;
}
.nav-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px; border-radius: var(--radius-sm);
    color: #b8c4d4; font-size: 13.5px; margin-bottom: 2px;
    transition: all .18s ease;
}
.nav-item .ico {
    width: 22px; height: 22px; flex: 0 0 22px;
    display: grid; place-items: center;
    font-size: 13px; border-radius: 6px;
    background: rgba(255, 255, 255, .06);
}
.nav-item:hover { background: var(--sidebar-hover); color: #fff; transform: translateX(2px); }
.nav-item.active {
    background: linear-gradient(90deg, rgba(16, 185, 129, .22), rgba(16, 185, 129, .06));
    color: #fff; font-weight: 600;
    box-shadow: inset 3px 0 0 var(--primary);
}
.nav-item.active .ico { background: var(--primary); color: #04231a; }

.sidebar-user {
    display: flex; align-items: center; gap: 10px;
    padding: 13px 14px; border-top: 1px solid rgba(255, 255, 255, .07);
    background: rgba(0, 0, 0, .18);
}
.avatar-sm {
    width: 34px; height: 34px; flex: 0 0 34px; border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--blue));
    display: grid; place-items: center; font-weight: 700; font-size: 14px; color: #fff;
    overflow: hidden;
}
.su-info { flex: 1; min-width: 0; }
.su-info strong { display: block; font-size: 13px; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.su-info small { color: #7c8ba1; font-size: 11px; }
.logout-btn {
    color: #94a3b8; font-size: 16px; padding: 4px 6px; border-radius: 6px;
    transition: .18s;
}
.logout-btn:hover { color: var(--red); background: rgba(239, 68, 68, .12); }

.main {
    flex: 1; margin-left: var(--sidebar-w);
    display: flex; flex-direction: column; min-height: 100vh; min-width: 0;
}

.topbar {
    display: flex; align-items: center; gap: 16px;
    padding: 16px 26px; background: rgba(255, 255, 255, .86);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 40;
}
.topbar-title h1 { font-size: 19px; font-weight: 700; letter-spacing: -.2px; }
.topbar-title p { font-size: 12.5px; color: var(--text-3); margin-top: 1px; }
.topbar-actions { margin-left: auto; display: flex; gap: 9px; align-items: center; }
.menu-toggle {
    display: none; background: none; border: none; font-size: 20px; color: var(--text-2);
}

.content { flex: 1; padding: 22px 26px 34px; }
.footer {
    text-align: center; padding: 16px; font-size: 12px; color: var(--text-3);
    border-top: 1px solid var(--border); background: #fff;
}

.sidebar-mask {
    display: none; position: fixed; inset: 0; background: rgba(15, 23, 42, .45);
    z-index: 55;
}

/* ====================== 通用组件 ====================== */
.card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow);
}
.card-head {
    display: flex; align-items: center; gap: 10px;
    padding: 15px 18px; border-bottom: 1px solid var(--border);
}
.card-head h3 { font-size: 14.5px; font-weight: 650; }
.card-head .sub { font-size: 12px; color: var(--text-3); margin-left: auto; }
.card-body { padding: 18px; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-sidebar { grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    padding: 9px 17px; border-radius: 10px; border: 1px solid transparent;
    font-size: 13.5px; font-weight: 600; transition: all .18s ease;
    background: #fff; color: var(--text-2); border-color: var(--border);
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff; border-color: transparent;
    box-shadow: 0 6px 16px -6px rgba(16, 185, 129, .6);
}
.btn-accent {
    background: linear-gradient(135deg, #fb923c, var(--accent));
    color: #fff; border-color: transparent;
}
.btn-blue { background: var(--blue); color: #fff; border-color: transparent; }
.btn-danger { background: #fff; color: var(--red); border-color: #fecaca; }
.btn-danger:hover { background: var(--red-light); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-2); }
.btn-block { width: 100%; }
.btn-sm { padding: 6px 12px; font-size: 12.5px; border-radius: 8px; }
.btn-lg { padding: 12px 22px; font-size: 15px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

.badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600;
    background: var(--primary-light); color: var(--primary-dark);
}
.badge-blue { background: var(--blue-light); color: #1d4ed8; }
.badge-orange { background: var(--accent-light); color: #c2410c; }
.badge-purple { background: var(--purple-light); color: #6d28d9; }
.badge-red { background: var(--red-light); color: #b91c1c; }
.badge-gray { background: #eef2f7; color: var(--text-2); }

.stat {
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 17px 18px; box-shadow: var(--shadow); position: relative; overflow: hidden;
    transition: transform .2s ease, box-shadow .2s ease;
}
.stat:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.stat::after {
    content: ''; position: absolute; right: -22px; top: -22px;
    width: 82px; height: 82px; border-radius: 50%; background: var(--tint, var(--primary-light));
    opacity: .65;
}
.stat-ico {
    width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
    font-size: 18px; background: var(--tint, var(--primary-light)); margin-bottom: 11px;
    position: relative; z-index: 1;
}
.stat-label { font-size: 12.5px; color: var(--text-3); position: relative; z-index: 1; }
.stat-value {
    font-size: 25px; font-weight: 750; letter-spacing: -.6px; margin-top: 3px;
    position: relative; z-index: 1;
}
.stat-value small { font-size: 12.5px; font-weight: 500; color: var(--text-3); margin-left: 3px; }
.stat-foot { font-size: 12px; color: var(--text-3); margin-top: 6px; position: relative; z-index: 1; }

/* 进度条 */
.progress { height: 8px; border-radius: 999px; background: #eef2f7; overflow: hidden; }
.progress > i {
    display: block; height: 100%; border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), #34d399);
    transition: width .8s cubic-bezier(.22, 1, .36, 1);
}
.progress.warn > i { background: linear-gradient(90deg, var(--amber), #fbbf24); }
.progress.danger > i { background: linear-gradient(90deg, var(--red), #f87171); }

/* 表单 */
.form-row { margin-bottom: 15px; }
.form-row label, .form-label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text-2); }
.form-input, .form-row input, .form-row select, .form-row textarea {
    width: 100%; padding: 10px 13px; border: 1px solid var(--border);
    border-radius: 10px; font-size: 13.5px; font-family: inherit;
    background: #fbfcfe; color: var(--text); transition: .18s;
}
.form-input:focus, .form-row input:focus, .form-row select:focus, .form-row textarea:focus {
    outline: none; border-color: var(--primary); background: #fff;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, .13);
}
.help-text, .form-row .helptext { font-size: 11.5px; color: var(--text-3); margin-top: 5px; display: block; }
.errorlist { list-style: none; color: var(--red); font-size: 12px; margin-top: 5px; }
.errorlist li::before { content: '⚠ '; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }

/* 消息提示 */
.messages { margin-bottom: 16px; display: grid; gap: 9px; }
.alert {
    display: flex; align-items: center; gap: 10px;
    padding: 11px 15px; border-radius: var(--radius-sm); font-size: 13.5px;
    background: var(--blue-light); color: #1e40af; border: 1px solid #bfdbfe;
    animation: slideIn .3s ease;
}
.alert-success { background: var(--primary-light); color: var(--primary-dark); border-color: #a7f3d0; }
.alert-error, .alert-danger { background: var(--red-light); color: #b91c1c; border-color: #fecaca; }
.alert-warning { background: var(--accent-light); color: #c2410c; border-color: #fed7aa; }
.alert-ico {
    width: 21px; height: 21px; flex: 0 0 21px; border-radius: 50%;
    display: grid; place-items: center; background: rgba(255, 255, 255, .75);
    font-weight: 800; font-size: 12px;
}
.alert-close { margin-left: auto; background: none; border: none; font-size: 17px; opacity: .55; }
.alert-close:hover { opacity: 1; }

@keyframes slideIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }

/* Toast */
.toast-wrap { position: fixed; top: 20px; right: 20px; z-index: 999; display: grid; gap: 10px; }
.toast {
    min-width: 220px; padding: 12px 16px; border-radius: 11px;
    background: #0f172a; color: #fff; font-size: 13.5px;
    box-shadow: var(--shadow-lg); animation: slideIn .3s ease;
    display: flex; align-items: center; gap: 9px;
}
.toast.ok { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.toast.err { background: linear-gradient(135deg, #f87171, var(--red)); }

/* ====================== 上传区 ====================== */
.dropzone {
    border: 2px dashed #cbd5e1; border-radius: var(--radius);
    padding: 34px 20px; text-align: center; background: #fbfdff;
    transition: .2s; cursor: pointer; position: relative;
}
.dropzone:hover, .dropzone.dragover {
    border-color: var(--primary); background: #f0fdf7;
    transform: translateY(-2px);
}
.dropzone.dragover { box-shadow: 0 0 0 4px rgba(16, 185, 129, .12); }
.dz-icon { font-size: 42px; margin-bottom: 8px; }
.dz-title { font-size: 15px; font-weight: 650; }
.dz-desc { font-size: 12.5px; color: var(--text-3); margin-top: 5px; }
.preview-area { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.preview-area img { width: 100%; max-height: 320px; object-fit: contain; background: #f8fafc; }
.preview-remove {
    position: absolute; top: 9px; right: 9px; width: 30px; height: 30px;
    border-radius: 50%; border: none; background: rgba(15, 23, 42, .72); color: #fff;
    font-size: 15px; display: grid; place-items: center;
}
.preview-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 9px; }
.preview-list .item { position: relative; border-radius: 10px; overflow: hidden; border: 1px solid var(--border); }
.preview-list img { height: 84px; width: 100%; object-fit: cover; }

.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chip {
    padding: 5px 12px; border-radius: 999px; font-size: 12.5px;
    background: #eef2f7; color: var(--text-2); border: 1px solid transparent;
    transition: .18s; cursor: pointer;
}
.chip:hover { background: var(--primary-light); color: var(--primary-dark); }
.chip.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.seg { display: inline-flex; background: #eef2f7; border-radius: 10px; padding: 3px; gap: 3px; }
.seg button {
    border: none; background: transparent; padding: 7px 14px; border-radius: 8px;
    font-size: 13px; font-weight: 600; color: var(--text-2); transition: .18s;
}
.seg button.active { background: #fff; color: var(--primary-dark); box-shadow: var(--shadow); }

/* ====================== 记录卡片 ====================== */
.record-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(258px, 1fr)); gap: 16px; }
.record-card {
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
    overflow: hidden; box-shadow: var(--shadow); transition: .22s ease; display: flex; flex-direction: column;
}
.record-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: #d7e0ea; }
.rc-img { position: relative; height: 152px; background: #f1f5f9; }
.rc-img img { width: 100%; height: 100%; object-fit: cover; }
.rc-conf {
    position: absolute; left: 9px; bottom: 9px;
    background: rgba(15, 23, 42, .78); color: #fff; font-size: 11.5px;
    padding: 3px 9px; border-radius: 999px; backdrop-filter: blur(4px);
}
.rc-meal {
    position: absolute; left: 9px; top: 9px;
    background: rgba(255, 255, 255, .92); color: var(--text-2);
    font-size: 11.5px; padding: 3px 9px; border-radius: 999px; font-weight: 600;
}
.rc-fav {
    position: absolute; right: 9px; top: 9px; width: 32px; height: 32px;
    border-radius: 50%; border: none; background: rgba(255, 255, 255, .92);
    font-size: 15px; display: grid; place-items: center; transition: .18s;
}
.rc-fav:hover { transform: scale(1.12); background: #fff; }
.rc-fav.on { color: var(--amber); }
.rc-body { padding: 13px 15px; flex: 1; display: flex; flex-direction: column; }
.rc-title { display: flex; align-items: center; gap: 8px; }
.rc-title strong { font-size: 15.5px; }
.rc-meta { font-size: 12px; color: var(--text-3); margin-top: 3px; }
.rc-cal { display: flex; align-items: baseline; gap: 4px; margin-top: 9px; }
.rc-cal b { font-size: 19px; color: var(--accent); letter-spacing: -.4px; }
.rc-cal span { font-size: 11.5px; color: var(--text-3); }
.rc-actions {
    display: flex; gap: 7px; margin-top: 12px; padding-top: 11px;
    border-top: 1px dashed var(--border);
}
.rc-actions .btn { flex: 1; }

/* ====================== 表格 ====================== */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); background: #fff; }
table.data { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.data th {
    text-align: left; padding: 12px 15px; background: #f8fafc;
    color: var(--text-2); font-weight: 650; font-size: 12.5px;
    border-bottom: 1px solid var(--border); white-space: nowrap;
}
table.data td { padding: 11px 15px; border-bottom: 1px solid #f1f5f9; vertical-align: middle; }
table.data tr:last-child td { border-bottom: none; }
table.data tbody tr { transition: background .15s; }
table.data tbody tr:hover { background: #f8fbff; }

/* 分页 */
.pagination { display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 22px; flex-wrap: wrap; }
.pagination a, .pagination span {
    min-width: 36px; height: 36px; padding: 0 11px; border-radius: 9px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 13px; border: 1px solid var(--border); background: #fff; color: var(--text-2);
    transition: .18s;
}
.pagination a:hover { border-color: var(--primary); color: var(--primary-dark); background: var(--primary-light); }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 650; }
.pagination .disabled { opacity: .45; }

/* 空状态 */
.empty { text-align: center; padding: 54px 20px; color: var(--text-3); }
.empty-ico { font-size: 52px; margin-bottom: 12px; opacity: .75; }
.empty h3 { font-size: 16px; color: var(--text-2); margin-bottom: 6px; }
.empty p { font-size: 13px; margin-bottom: 16px; }

/* ====================== 结果页 ====================== */
.result-hero {
    display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 20px;
}
.result-img { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); background: #f8fafc; }
.result-img img { width: 100%; max-height: 430px; object-fit: contain; }
.conf-ring { display: flex; align-items: center; gap: 16px; }
.ring {
    --p: 0; --size: 96px;
    width: var(--size); height: var(--size); flex: 0 0 var(--size); border-radius: 50%;
    background: conic-gradient(var(--primary) calc(var(--p) * 1%), #e9eef5 0);
    display: grid; place-items: center; position: relative;
}
.ring::after {
    content: ''; position: absolute; inset: 9px; border-radius: 50%; background: #fff;
}
.ring b { position: relative; z-index: 1; font-size: 19px; letter-spacing: -.5px; }

.nutri-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(112px, 1fr)); gap: 12px; }
.nutri-item {
    background: #fbfdff; border: 1px solid var(--border); border-radius: 12px;
    padding: 13px; text-align: center;
}
.nutri-item .ni-label { font-size: 11.5px; color: var(--text-3); }
.nutri-item .ni-value { font-size: 19px; font-weight: 720; margin-top: 3px; letter-spacing: -.4px; }
.nutri-item .ni-unit { font-size: 11px; color: var(--text-3); margin-left: 2px; }

.macro-bar { display: flex; height: 34px; border-radius: 9px; overflow: hidden; border: 1px solid var(--border); }
.macro-bar > div {
    display: grid; place-items: center; font-size: 11.5px; color: #fff; font-weight: 650;
    transition: flex .6s ease; min-width: 0; white-space: nowrap;
}
.macro-legend { display: flex; gap: 15px; margin-top: 11px; flex-wrap: wrap; font-size: 12.5px; color: var(--text-2); }
.macro-legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; margin-right: 5px; }

.bar-row { display: flex; align-items: center; gap: 11px; margin-bottom: 11px; }
.bar-row .name { width: 74px; font-size: 13px; color: var(--text-2); }
.bar-row .track { flex: 1; height: 22px; background: #f1f5f9; border-radius: 7px; overflow: hidden; }
.bar-row .fill {
    height: 100%; border-radius: 7px;
    background: linear-gradient(90deg, var(--primary), #34d399);
    transition: width .9s cubic-bezier(.22, 1, .36, 1);
    display: flex; align-items: center; justify-content: flex-end;
    padding-right: 8px; color: #fff; font-size: 11.5px; font-weight: 650;
}

/* 折线图 */
.chart-wrap { position: relative; }
.chart-svg { width: 100%; height: 220px; overflow: visible; }
.chart-axis { stroke: #e6eaf0; stroke-width: 1; }
.chart-line { fill: none; stroke: var(--primary); stroke-width: 2.6; stroke-linejoin: round; stroke-linecap: round; }
.chart-area { fill: url(#areaGrad); }
.chart-dot { fill: #fff; stroke: var(--primary); stroke-width: 2.4; }
.chart-xlabel { fill: var(--text-3); font-size: 10.5px; }

/* ====================== 认证页 ====================== */
.auth {
    min-height: 100vh; display: grid; grid-template-columns: 1.05fr .95fr;
}
.auth-visual {
    background: linear-gradient(150deg, #064e3b 0%, #0f766e 45%, #115e59 100%);
    color: #fff; padding: 54px 52px; display: flex; flex-direction: column;
    position: relative; overflow: hidden;
}
.auth-visual::before, .auth-visual::after {
    content: ''; position: absolute; border-radius: 50%;
    background: rgba(255, 255, 255, .07);
}
.auth-visual::before { width: 420px; height: 420px; right: -140px; top: -120px; }
.auth-visual::after { width: 280px; height: 280px; left: -90px; bottom: -90px; }
.auth-brand { display: flex; align-items: center; gap: 12px; font-size: 19px; font-weight: 700; }
.auth-brand .brand-logo { width: 34px; height: 34px; flex: 0 0 34px; }
.auth-hero { margin: auto 0; position: relative; z-index: 1; }
.auth-hero h2 { font-size: 34px; line-height: 1.35; letter-spacing: -.8px; margin-bottom: 14px; }
.auth-hero p { color: #a7f3d0; font-size: 14.5px; max-width: 420px; }
.auth-feats { display: grid; gap: 13px; margin-top: 30px; }
.auth-feat { display: flex; gap: 12px; align-items: flex-start; }
.auth-feat .fi {
    width: 36px; height: 36px; flex: 0 0 36px; border-radius: 10px;
    background: rgba(255, 255, 255, .14); display: grid; place-items: center; font-size: 17px;
}
.auth-feat strong { display: block; font-size: 13.5px; }
.auth-feat span { font-size: 12.5px; color: #99f6e4; }

.auth-form-side { display: grid; place-items: center; padding: 40px 24px; background: #fff; }
.auth-card { width: 100%; max-width: 390px; }
.auth-card h2 { font-size: 25px; letter-spacing: -.5px; margin-bottom: 6px; }
.auth-card > p { color: var(--text-3); font-size: 13.5px; margin-bottom: 26px; }
.auth-switch { text-align: center; margin-top: 20px; font-size: 13px; color: var(--text-3); }
.auth-switch a { color: var(--primary-dark); font-weight: 650; }
.auth-switch a:hover { text-decoration: underline; }
.auth-divider {
    display: flex; align-items: center; gap: 11px; color: var(--text-3);
    font-size: 12px; margin: 20px 0;
}
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.demo-tip {
    background: #f8fafc; border: 1px dashed var(--border); border-radius: 10px;
    padding: 11px 13px; font-size: 12.5px; color: var(--text-2); margin-top: 18px;
}
.demo-tip code { background: #eef2f7; padding: 1px 5px; border-radius: 4px; font-size: 12px; }

/* 头像上传 */
.avatar-lg {
    width: 84px; height: 84px; border-radius: 50%; overflow: hidden; flex: 0 0 84px;
    background: linear-gradient(135deg, var(--primary), var(--blue));
    display: grid; place-items: center; color: #fff; font-size: 32px; font-weight: 700;
    box-shadow: var(--shadow);
}

/* 标签页 */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.tab {
    padding: 10px 16px; font-size: 13.5px; font-weight: 600; color: var(--text-3);
    border-bottom: 2px solid transparent; cursor: pointer; background: none; border-top: none;
    border-left: none; border-right: none; transition: .18s;
}
.tab:hover { color: var(--text-2); }
.tab.active { color: var(--primary-dark); border-bottom-color: var(--primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: slideIn .25s ease; }

/* 加载动画 */
.spinner {
    width: 13px; height: 13px; border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, .4); border-top-color: #fff;
    display: inline-block; animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* 骨架屏 */
.skeleton {
    background: linear-gradient(90deg, #eef2f7 25%, #f8fafc 50%, #eef2f7 75%);
    background-size: 200% 100%; animation: sk 1.4s infinite; border-radius: 8px;
}
@keyframes sk { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* 时间轴 */
.timeline { position: relative; padding-left: 22px; }
.timeline::before { content: ''; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px; background: var(--border); }
.tl-item { position: relative; padding-bottom: 16px; }
.tl-item::before {
    content: ''; position: absolute; left: -20px; top: 5px; width: 10px; height: 10px;
    border-radius: 50%; background: var(--primary); border: 2px solid #fff;
    box-shadow: 0 0 0 2px var(--primary-light);
}

.muted { color: var(--text-3); }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.flex { display: flex; } .flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-center { display: flex; align-items: center; } .gap-1 { gap: 8px; } .gap-2 { gap: 16px; }
.hidden { display: none !important; }

/* ====================== 响应式 ====================== */
@media (max-width: 1080px) {
    .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-sidebar, .result-hero { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: none; }
    .main { margin-left: 0; }
    .menu-toggle { display: block; }
    .sidebar-mask.show { display: block; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .auth { grid-template-columns: 1fr; }
    .auth-visual { display: none; }
    .content { padding: 16px 14px 26px; }
    .topbar { padding: 13px 15px; }
}
@media (max-width: 560px) {
    .grid-4 { grid-template-columns: 1fr; }
    .form-grid-2 { grid-template-columns: 1fr; }
    .record-grid { grid-template-columns: 1fr; }
}