/* ==========================================================
   停车券发放记录系统 · 全局样式（清爽蓝白）
   ========================================================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-soft: #eff6ff;
    --primary-line: #dbeafe;
    --text: #0f172a;
    --muted: #64748b;
    --soft: #94a3b8;
    --border: #e6ebf2;
    --bg: #f6f8fb;
    --card: #ffffff;
    --green: #059669;
    --green-soft: #ecfdf5;
    --amber: #d97706;
    --amber-soft: #fffbeb;
    --red: #dc2626;
    --red-soft: #fef2f2;
    --radius: 14px;
    --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 10px 30px -22px rgba(15, 23, 42, .25);
}

html, body { margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
h1, h2, h3, h4, p { margin: 0; }
.ic { flex: none; vertical-align: middle; }
.muted { color: var(--muted); }
.sub { color: var(--muted); font-size: 12.5px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.nowrap { white-space: nowrap; }
.text-right { text-align: right; }

/* ============ 通用组件 ============ */

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
}

.card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.card-title {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .1px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-title .ic { color: var(--primary); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 9px 16px;
    font-size: 13.5px;
    font-weight: 500;
    line-height: 1.4;
    cursor: pointer;
    background: var(--primary);
    color: #fff;
    transition: background .18s, border-color .18s, color .18s, transform .1s;
    font-family: inherit;
}
.btn:hover { background: var(--primary-dark); color: #fff; }
.btn:active { transform: translateY(1px); }
.btn-outline { background: #fff; border-color: var(--border); color: var(--text); }
.btn-outline:hover { background: #f8fafc; border-color: #cbd5e1; color: var(--text); }
.btn-soft { background: var(--primary-soft); color: var(--primary); border-color: var(--primary-line); }
.btn-soft:hover { background: #e0edff; color: var(--primary-dark); }
.btn-danger { background: #fff; border-color: #fecaca; color: var(--red); }
.btn-danger:hover { background: var(--red-soft); color: var(--red); }
.btn-block { width: 100%; }
.btn-sm { padding: 6px 11px; font-size: 12.5px; border-radius: 8px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--muted);
    cursor: pointer;
    transition: .18s;
}
.icon-btn:hover { color: var(--primary); border-color: var(--primary-line); background: var(--primary-soft); }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.7;
    white-space: nowrap;
    background: #f1f5f9;
    color: var(--muted);
}
.badge.ok { background: var(--green-soft); color: var(--green); }
.badge.pending { background: var(--amber-soft); color: var(--amber); }
.badge.danger { background: var(--red-soft); color: var(--red); }
.badge.blue { background: var(--primary-soft); color: var(--primary); }

.alert {
    border-radius: 10px;
    padding: 11px 14px;
    font-size: 13px;
    margin-bottom: 16px;
    border: 1px solid transparent;
}
.alert-success { background: var(--green-soft); color: #047857; border-color: #d1fae5; }
.alert-error { background: var(--red-soft); color: #b91c1c; border-color: #fee2e2; }
.alert-info { background: var(--primary-soft); color: #1e40af; border-color: var(--primary-line); }
.alert-warn { background: var(--amber-soft); color: #b45309; border-color: #fef3c7; }

/* ============ 表单 ============ */

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; font-weight: 600; color: #334155; }
.field .hint { font-size: 12px; color: var(--soft); }

input[type="text"], input[type="password"], input[type="date"], input[type="datetime-local"],
input[type="number"], input[type="email"], select, textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 13.5px;
    font-family: inherit;
    color: var(--text);
    background: #fff;
    outline: none;
    transition: border-color .18s, box-shadow .18s;
    -webkit-appearance: none;
    appearance: none;
}
input::placeholder, textarea::placeholder { color: #b6c2d2; }
input:focus, select:focus, textarea:focus {
    border-color: #93c5fd;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}
select {
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 32px;
}
textarea { resize: vertical; min-height: 80px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px dashed var(--border);
}

/* ============ 后台框架 ============ */

.app {
    display: grid;
    grid-template-columns: 236px minmax(0, 1fr);
    min-height: 100vh;
}

.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    background: #fff;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 18px 14px;
    z-index: 30;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 8px 16px;
    color: var(--text);
}

.brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    box-shadow: 0 6px 14px -6px rgba(37, 99, 235, .55);
    flex: none;
}
.brand-text strong { display: block; font-size: 14.5px; line-height: 1.3; letter-spacing: .2px; }
.brand-text span { display: block; font-size: 11.5px; color: var(--soft); line-height: 1.5; }

.nav { display: flex; flex-direction: column; gap: 4px; flex: 1; overflow-y: auto; }
.nav-label {
    font-size: 11px;
    color: #a8b3c2;
    letter-spacing: 1px;
    padding: 10px 10px 6px;
}
.nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 11px;
    border-radius: 10px;
    color: #475569;
    font-size: 13.5px;
    font-weight: 500;
    transition: background .16s, color .16s;
}
.nav a:hover { background: #f4f7fb; color: var(--text); }
.nav a.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.nav a.active .ic { color: var(--primary); }
.nav .ic { color: #7c8ca0; }
.nav a:hover .ic { color: var(--primary); }
.nav a .nav-dot {
    margin-left: auto;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    background: #ef4444;
    color: #fff;
    font-size: 11px;
    line-height: 18px;
    text-align: center;
    padding: 0 5px;
    font-weight: 600;
}

.sidebar-foot {
    border-top: 1px solid var(--border);
    padding-top: 12px;
    margin-top: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.avatar {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--primary-soft);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    flex: none;
}
.sidebar-foot .who { min-width: 0; flex: 1; }
.sidebar-foot .who b { display: block; font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-foot .who span { display: block; font-size: 11.5px; color: var(--soft); }

.main { min-width: 0; display: flex; flex-direction: column; }

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    height: 62px;
    background: rgba(255, 255, 255, .88);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 24px;
}
.topbar h1 { font-size: 16px; font-weight: 700; letter-spacing: .2px; }
.topbar .spacer { flex: 1; }
.topbar-right { display: flex; align-items: center; gap: 10px; }
.user-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 10px 4px 4px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: #fff;
    font-size: 13px;
    color: var(--text);
    font-weight: 500;
}
.user-chip .avatar { width: 26px; height: 26px; border-radius: 50%; font-size: 12px; }

.content { padding: 24px; max-width: 1440px; width: 100%; margin: 0 auto; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.page-head h2 { font-size: 20px; font-weight: 700; letter-spacing: -.2px; }
.page-head p { color: var(--muted); font-size: 13px; margin-top: 2px; }
.page-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.menu-btn { display: none; }
.overlay { display: none; }

/* ============ 统计卡片 ============ */

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 18px; }
.stat-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: var(--shadow);
    min-width: 0;
}
.stat-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--primary-soft);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: none;
}
.stat-icon.green { background: var(--green-soft); color: var(--green); }
.stat-icon.amber { background: var(--amber-soft); color: var(--amber); }
.stat-icon.indigo { background: #eef2ff; color: #4f46e5; }
.stat-meta { min-width: 0; }
.stat-value { font-size: 26px; font-weight: 700; letter-spacing: -.6px; line-height: 1.2; }
.stat-label { font-size: 12.5px; color: var(--muted); margin-top: 1px; }

.chart-grid { display: grid; grid-template-columns: 1.65fr 1fr; gap: 16px; margin-bottom: 18px; }
.chart-box { min-width: 0; }
.donut-wrap { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.donut-wrap svg { flex: none; }
.legend { display: flex; flex-direction: column; gap: 9px; min-width: 130px; flex: 1; }
.legend-item { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: #475569; }
.legend-item .dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.legend-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 110px; }
.legend-val { margin-left: auto; color: var(--muted); font-size: 12px; white-space: nowrap; }
.empty-chart {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 220px;
    color: var(--soft);
    font-size: 13px;
    background: #fafcff;
    border: 1px dashed var(--border);
    border-radius: 12px;
}

/* ============ 表格 ============ */

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; background: #fff; }
table.data { width: 100%; border-collapse: collapse; min-width: 760px; }
table.data th {
    font-size: 12px;
    color: #64748b;
    font-weight: 600;
    text-align: left;
    padding: 11px 14px;
    background: #f8fafc;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
table.data td {
    padding: 12px 14px;
    border-bottom: 1px solid #f1f5f9;
    font-size: 13.5px;
    vertical-align: middle;
    color: #1e293b;
}
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr:hover { background: #f8fbff; }
table.data .actions { display: flex; gap: 6px; white-space: nowrap; }
table.data form { display: inline; }
.cell-ellipsis { max-width: 180px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.table-empty { padding: 44px 20px; text-align: center; color: var(--soft); font-size: 13px; }

.summary-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}
.summary-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 5px 14px;
    font-size: 12.5px;
    color: var(--muted);
}
.summary-chip b { color: var(--text); font-size: 14px; }

/* ============ 筛选栏 ============ */

.filter-bar {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}
.filter-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.filter-form .field { gap: 4px; min-width: 130px; }
.filter-form .field.grow { flex: 1; min-width: 200px; }
.filter-form input, .filter-form select { padding: 8px 11px; font-size: 13px; }
.filter-form .btn { padding: 8px 15px; }

/* ============ 分页 ============ */

.pager { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: 18px; }
.pg {
    min-width: 32px;
    height: 32px;
    padding: 0 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: #fff;
    color: #475569;
    font-size: 13px;
}
.pg:hover { border-color: #cbd5e1; color: var(--primary); }
.pg.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.pg.disabled { opacity: .5; pointer-events: none; }
.pg.dots { border: none; background: transparent; }
.pg-total { margin-left: 6px; font-size: 12.5px; color: var(--soft); }

/* ============ 登录 / 注册 / 安装 ============ */

.auth-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 36px 16px;
    background:
        radial-gradient(1100px 520px at 8% -10%, #dbeafe 0%, rgba(219, 234, 254, 0) 60%),
        radial-gradient(900px 460px at 100% 0%, #e0f2fe 0%, rgba(224, 242, 254, 0) 55%),
        #f6f8fb;
}
.auth-card {
    width: 100%;
    max-width: 430px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: 0 24px 60px -30px rgba(15, 23, 42, .3);
    padding: 32px;
}
.auth-card.wide { max-width: 520px; }
.auth-brand { display: flex; align-items: center; gap: 10px; justify-content: center; margin-bottom: 22px; }
.auth-title { font-size: 20px; font-weight: 700; text-align: center; letter-spacing: -.2px; }
.auth-sub { text-align: center; color: var(--muted); font-size: 13px; margin: 4px 0 22px; }
.auth-form { display: flex; flex-direction: column; gap: 15px; }
.auth-foot { text-align: center; font-size: 13px; color: var(--muted); margin-top: 18px; }
.auth-foot a { font-weight: 600; }
.auth-back { text-align: center; margin-top: 14px; font-size: 12.5px; }
.auth-back a { color: var(--soft); }
.auth-back a:hover { color: var(--primary); }

.install-card { max-width: 560px; }
.install-title { font-size: 14px; font-weight: 700; margin: 18px 0 10px; color: #334155; }
.checks { display: flex; flex-direction: column; gap: 8px; }
.check-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 9px;
    background: #fbfdff;
    font-size: 13px;
    color: #475569;
}
.install-form { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.install-form .full { grid-column: 1 / -1; }
.install-form .field label { font-size: 12.5px; }
.install-tip { font-size: 12px; color: var(--soft); text-align: center; margin-top: 14px; }
.install-success { text-align: center; padding-top: 6px; }
.install-success h2 { font-size: 18px; margin: 12px 0 6px; }
.install-success .big-ok {
    display: inline-flex;
    width: 62px;
    height: 62px;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    background: var(--green-soft);
    color: var(--green);
}
.install-success .kv {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 9px;
    margin-top: 10px;
    font-size: 13px;
    color: var(--muted);
    text-align: left;
}
.install-success .kv b { color: var(--text); }
.install-actions { display: flex; gap: 10px; justify-content: center; margin-top: 20px; }

/* ============ 站点首页 ============ */

.landing { background: #fff; }
.landing-wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

.site-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, .86);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #eef2f7;
}
.site-nav .landing-wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.site-nav .brand { padding: 0; }
.site-nav .brand-text strong { font-size: 15px; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: #475569; font-size: 13.5px; font-weight: 500; }
.nav-links a:hover { color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 10px; }

.hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(900px 460px at 12% -12%, #dbeafe 0%, rgba(219, 234, 254, 0) 62%),
        radial-gradient(760px 420px at 92% 0%, #e0f2fe 0%, rgba(224, 242, 254, 0) 58%),
        linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
}
.hero-inner {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 52px;
    align-items: center;
    padding: 76px 0 88px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 13px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--primary-line);
    color: var(--primary);
    font-size: 12.5px;
    font-weight: 500;
    box-shadow: 0 4px 12px -8px rgba(37, 99, 235, .4);
}
.hero h1 {
    font-size: 44px;
    line-height: 1.22;
    letter-spacing: -1.2px;
    font-weight: 800;
    margin: 18px 0 14px;
}
.hero h1 .grad {
    background: linear-gradient(100deg, #2563eb, #38bdf8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-desc { color: var(--muted); font-size: 15px; line-height: 1.8; max-width: 480px; }
.hero-actions { display: flex; align-items: center; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
.hero-actions .btn { padding: 11px 22px; font-size: 14px; border-radius: 11px; }
.hero-note { display: flex; align-items: center; gap: 7px; color: var(--soft); font-size: 12.5px; margin-top: 14px; }

.hero-visual { position: relative; }
.mock {
    background: #fff;
    border: 1px solid #e8eef6;
    border-radius: 18px;
    box-shadow: 0 36px 70px -36px rgba(37, 99, 235, .45);
    padding: 16px;
    transform: rotate(.5deg);
}
.mock-bar { display: flex; align-items: center; gap: 5px; margin-bottom: 14px; }
.mock-dot { width: 8px; height: 8px; border-radius: 50%; background: #e2e8f0; }
.mock-url {
    margin-left: 8px;
    flex: 1;
    height: 20px;
    border-radius: 6px;
    background: #f1f5f9;
    font-size: 10px;
    color: #94a3b8;
    display: flex;
    align-items: center;
    padding: 0 8px;
    font-family: ui-monospace, Menlo, monospace;
}
.mock-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 12px; }
.mock-stat { background: #f8fafc; border: 1px solid #eef2f7; border-radius: 10px; padding: 9px 10px; }
.mock-stat b { display: block; font-size: 17px; line-height: 1.3; color: #0f172a; letter-spacing: -.3px; }
.mock-stat span { font-size: 10.5px; color: #94a3b8; }
.mock-chart { background: #f8fbff; border: 1px solid #eef2f7; border-radius: 10px; padding: 10px 10px 4px; }
.mock-rows { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; }
.mock-row { display: flex; align-items: center; gap: 8px; padding: 6px 8px; background: #fbfdff; border: 1px solid #f1f5f9; border-radius: 8px; }
.mock-row .m-avatar { width: 22px; height: 22px; border-radius: 7px; background: var(--primary-soft); color: var(--primary); font-size: 10px; display: flex; align-items: center; justify-content: center; font-weight: 700; }
.mock-row .m-name { font-size: 11px; color: #334155; flex: 1; }
.mock-row .m-qty { font-size: 10.5px; color: var(--primary); background: var(--primary-soft); border-radius: 999px; padding: 1px 8px; }

.section { padding: 76px 0; }
.section.alt { background: #f8fafc; border-top: 1px solid #eef2f7; border-bottom: 1px solid #eef2f7; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.section-head .eyebrow {
    display: inline-block;
    font-size: 12px;
    color: var(--primary);
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 8px;
}
.section-head h2 { font-size: 30px; letter-spacing: -.6px; font-weight: 800; }
.section-head p { color: var(--muted); font-size: 14px; margin-top: 10px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px 22px;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px -28px rgba(37, 99, 235, .5);
    border-color: #dbeafe;
}
.feature-icon {
    width: 42px;
    height: 42px;
    border-radius: 11px;
    background: var(--primary-soft);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}
.feature-card h3 { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.feature-card p { color: var(--muted); font-size: 13px; line-height: 1.75; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.step {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 22px;
    position: relative;
}
.step .num {
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: var(--primary);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    box-shadow: 0 8px 16px -10px rgba(37, 99, 235, .8);
}
.step h3 { font-size: 14.5px; font-weight: 700; margin-bottom: 4px; }
.step p { color: var(--muted); font-size: 12.5px; line-height: 1.7; }

.tech-strip {
    display: flex;
    justify-content: center;
    gap: 44px;
    flex-wrap: wrap;
    padding: 24px 0;
    border-top: 1px solid #eef2f7;
    border-bottom: 1px solid #eef2f7;
    background: #fff;
}
.tech-item { display: flex; align-items: center; gap: 9px; font-size: 13px; color: #475569; }
.tech-item .ic { color: var(--primary); }

.cta-band { padding: 68px 0; background: linear-gradient(120deg, #1e40af, #2563eb 55%, #0ea5e9); color: #fff; }
.cta-inner { text-align: center; }
.cta-inner h2 { font-size: 28px; letter-spacing: -.5px; font-weight: 800; }
.cta-inner p { color: rgba(255, 255, 255, .78); margin: 10px 0 24px; font-size: 14px; }
.cta-inner .btn { background: #fff; color: var(--primary); }
.cta-inner .btn:hover { background: #eff6ff; color: var(--primary-dark); }
.cta-inner .btn-ghost {
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .35);
    color: #fff;
}
.cta-inner .btn-ghost:hover { background: rgba(255, 255, 255, .2); color: #fff; }

.site-footer { background: #fff; border-top: 1px solid #eef2f7; padding: 26px 0; }
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 12.5px;
    color: var(--soft);
}

/* ============ 分享页 ============ */

.share-body { background: #f6f8fb; min-height: 100vh; }
.share-top {
    background: linear-gradient(125deg, #1e3a8a 0%, #2563eb 58%, #0ea5e9 100%);
    color: #fff;
    padding: 34px 20px 64px;
}
.share-top-inner { max-width: 1080px; margin: 0 auto; }
.share-brand { display: flex; align-items: center; gap: 9px; font-size: 13px; color: rgba(255, 255, 255, .82); }
.share-brand .brand-mark { background: rgba(255, 255, 255, .16); box-shadow: none; }
.share-title { font-size: 26px; font-weight: 800; letter-spacing: -.5px; margin: 18px 0 8px; }
.share-meta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; font-size: 12.5px; color: rgba(255, 255, 255, .82); }
.share-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 11px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .22);
    font-size: 12px;
}
.share-main { max-width: 1080px; margin: -40px auto 0; padding: 0 20px 48px; }
.share-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 16px; }
.share-stat {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px 18px;
    box-shadow: 0 16px 34px -30px rgba(15, 23, 42, .5);
}
.share-stat b { display: block; font-size: 24px; letter-spacing: -.5px; line-height: 1.3; }
.share-stat span { font-size: 12.5px; color: var(--muted); }
.share-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    box-shadow: var(--shadow);
}
.share-foot { text-align: center; font-size: 12px; color: var(--soft); margin-top: 22px; }
.share-invalid {
    max-width: 460px;
    margin: 90px auto;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 44px 32px;
    text-align: center;
    box-shadow: 0 24px 60px -34px rgba(15, 23, 42, .3);
}
.share-invalid .big-ico {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: var(--red-soft);
    color: var(--red);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}
.share-invalid h2 { font-size: 19px; margin-bottom: 6px; }
.share-invalid p { color: var(--muted); font-size: 13px; }
.privacy-note {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 12px;
    color: var(--soft);
    margin-top: 12px;
}

/* ============ 其他 ============ */

.copy-row { display: flex; gap: 8px; align-items: center; max-width: 380px; }
.copy-row input {
    flex: 1;
    padding: 7px 10px;
    font-size: 12px;
    color: #475569;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 8px;
    min-width: 0;
}
.inline-form { display: inline; }
.empty-block { padding: 54px 20px; text-align: center; color: var(--soft); }
.empty-block .ic { color: #cbd5e1; margin-bottom: 10px; }
.empty-block h3 { font-size: 15px; color: #475569; font-weight: 600; margin-bottom: 4px; }
.empty-block p { font-size: 13px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.quick-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 18px; }
.quick-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 13px;
    padding: 15px 17px;
    color: var(--text);
    transition: border-color .18s, box-shadow .18s;
}
.quick-card:hover { border-color: var(--primary-line); box-shadow: 0 14px 28px -24px rgba(37, 99, 235, .5); }
.quick-card .quick-ico {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--primary-soft);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex: none;
}
.quick-card b { display: block; font-size: 13.5px; font-weight: 600; }
.quick-card span { display: block; font-size: 12px; color: var(--soft); }

@media (max-width: 1180px) {
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 960px) {
    .app { grid-template-columns: 1fr; }
    .grid-2 { grid-template-columns: 1fr; }
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: 250px;
        transform: translateX(-100%);
        transition: transform .22s ease;
        box-shadow: 0 0 40px rgba(15, 23, 42, .18);
    }
    body.nav-open .sidebar { transform: none; }
    .overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, .42);
        z-index: 25;
    }
    body.nav-open .overlay { display: block; }
    .menu-btn { display: inline-flex; }
    .topbar { padding: 0 16px; }
    .content { padding: 18px 16px; }
    .chart-grid { grid-template-columns: 1fr; }
    .hero-inner { grid-template-columns: 1fr; gap: 42px; padding: 52px 0 64px; }
    .hero h1 { font-size: 34px; }
    .hero-visual { max-width: 520px; }
    .share-stats { grid-template-columns: 1fr; }
    .quick-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
}

@media (max-width: 640px) {
    .stat-grid { grid-template-columns: 1fr; }
    .feature-grid, .steps { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .install-form { grid-template-columns: 1fr; }
    .section { padding: 54px 0; }
    .section-head h2 { font-size: 24px; }
    .hero h1 { font-size: 29px; letter-spacing: -.6px; }
    .hero-desc { font-size: 14px; }
    .site-nav .brand-text span { display: none; }
    .topbar h1 { font-size: 15px; }
    .user-chip .who-name { display: none; }
    .auth-card { padding: 24px 20px; }
    .share-title { font-size: 21px; }
    .donut-wrap { justify-content: center; }
    .filter-form .field, .filter-form .field.grow { min-width: 100%; }
    .filter-form .btn { flex: 1; }
}