/* ==========================================================================
   小微企业经营套件 · 新视觉（bz- 前缀，与既有 ts- 体系完全隔离）
   特点：卡片式分栏、渐变强调色、圆角 18px、明暗双主题、移动端单列
   ========================================================================== */

/* ---------- 主题变量 ---------- */
.bz-app {
    --bz-bg: #f5f7fc;
    --bz-bg-soft: #eef2fb;
    --bz-card: #ffffff;
    --bz-ink: #0f172a;
    --bz-ink-2: #334155;
    --bz-muted: #6b7a90;
    --bz-line: #e3e8f2;
    --bz-accent: #4f46e5;
    --bz-accent-2: #0ea5e9;
    --bz-accent-soft: #eef0ff;
    --bz-good: #0f9d6e;
    --bz-warn: #c2800a;
    --bz-bad: #d64545;
    --bz-good-soft: #e8f8f1;
    --bz-warn-soft: #fff6e5;
    --bz-bad-soft: #ffeded;
    --bz-shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 12px 32px -18px rgba(15, 23, 42, .28);
    --bz-radius: 18px;

    position: relative;
    background: var(--bz-bg);
    color: var(--bz-ink);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.7;
    padding-bottom: 56px;
    min-height: 100vh;
}

.bz-app[data-theme="dark"] {
    --bz-bg: #0a1020;
    --bz-bg-soft: #0e1526;
    --bz-card: #121a2d;
    --bz-ink: #e9eef9;
    --bz-ink-2: #c3cee2;
    --bz-muted: #8b9ab3;
    --bz-line: #222d45;
    --bz-accent: #7c85ff;
    --bz-accent-2: #38bdf8;
    --bz-accent-soft: #1b2244;
    --bz-good: #34d399;
    --bz-warn: #fbbf24;
    --bz-bad: #f87171;
    --bz-good-soft: #10281f;
    --bz-warn-soft: #2a2110;
    --bz-bad-soft: #2b1418;
    --bz-shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 20px 40px -24px rgba(0, 0, 0, .8);
}

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

.bz-app h1, .bz-app h2, .bz-app h3, .bz-app h4, .bz-app p, .bz-app ul, .bz-app ol { margin: 0; }
.bz-app ul, .bz-app ol { padding-left: 1.15em; }
.bz-app a { color: var(--bz-accent); text-decoration: none; }
.bz-app a:hover { text-decoration: underline; }

/* ---------- 顶栏 ---------- */
.bz-bar {
    position: sticky;
    top: 0;
    z-index: 30;
    backdrop-filter: blur(14px);
    background: color-mix(in srgb, var(--bz-bg) 82%, transparent);
    border-bottom: 1px solid var(--bz-line);
}

.bz-bar-in {
    max-width: 1180px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 13.5px;
    color: var(--bz-muted);
    flex-wrap: wrap;
}

.bz-brand {
    font-weight: 800;
    color: var(--bz-ink);
    letter-spacing: .3px;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.bz-brand i {
    width: 22px;
    height: 22px;
    border-radius: 7px;
    background: linear-gradient(135deg, var(--bz-accent), var(--bz-accent-2));
    display: inline-block;
}

.bz-bar .sep { opacity: .45; }
.bz-bar .current { color: var(--bz-ink-2); font-weight: 600; }

.bz-theme {
    margin-left: auto;
    border: 1px solid var(--bz-line);
    background: var(--bz-card);
    color: var(--bz-ink-2);
    border-radius: 999px;
    padding: 7px 13px;
    font-size: 13px;
    cursor: pointer;
    font-weight: 600;
    transition: .18s;
}

.bz-theme:hover { border-color: var(--bz-accent); color: var(--bz-accent); }

/* ---------- 首屏 ---------- */
.bz-wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

.bz-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    gap: 30px;
    padding: 40px 0 30px;
    align-items: center;
}

.bz-kicker {
    display: inline-block;
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--bz-accent);
    background: var(--bz-accent-soft);
    border-radius: 999px;
    padding: 5px 12px;
    margin-bottom: 14px;
}

.bz-h1 {
    font-size: clamp(26px, 3.4vw, 38px);
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: -.4px;
}

.bz-h1 em {
    font-style: normal;
    background: linear-gradient(120deg, var(--bz-accent), var(--bz-accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.bz-lead {
    margin-top: 12px;
    font-size: 16px;
    color: var(--bz-ink-2);
    max-width: 620px;
}

.bz-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
    padding: 0;
    list-style: none;
}

.bz-chips li {
    font-size: 13px;
    color: var(--bz-ink-2);
    background: var(--bz-card);
    border: 1px solid var(--bz-line);
    border-radius: 10px;
    padding: 6px 10px;
    box-shadow: var(--bz-shadow);
}

.bz-chips li b { color: var(--bz-accent); }

.bz-hero-art {
    position: relative;
    height: 190px;
    border-radius: var(--bz-radius);
    background:
        radial-gradient(120% 120% at 100% 0%, color-mix(in srgb, var(--bz-accent-2) 26%, transparent), transparent 60%),
        linear-gradient(150deg, color-mix(in srgb, var(--bz-accent) 18%, var(--bz-card)), var(--bz-card));
    border: 1px solid var(--bz-line);
    box-shadow: var(--bz-shadow);
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    gap: 10px;
    padding: 18px;
}

.bz-hero-art span {
    display: block;
    flex: 1;
    border-radius: 8px 8px 4px 4px;
    background: linear-gradient(180deg, var(--bz-accent), color-mix(in srgb, var(--bz-accent) 25%, transparent));
    opacity: .85;
}

.bz-hero-art span:nth-child(1) { height: 34%; }
.bz-hero-art span:nth-child(2) { height: 58%; }
.bz-hero-art span:nth-child(3) { height: 43%; }
.bz-hero-art span:nth-child(4) { height: 76%; }
.bz-hero-art span:nth-child(5) { height: 62%; }

/* ---------- 主区 ---------- */
.bz-main {
    display: grid;
    grid-template-columns: 392px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
}

.bz-card {
    background: var(--bz-card);
    border: 1px solid var(--bz-line);
    border-radius: var(--bz-radius);
    box-shadow: var(--bz-shadow);
    overflow: hidden;
}

.bz-side { position: sticky; top: 74px; }

.bz-card-head {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--bz-line);
    font-weight: 700;
    font-size: 14.5px;
}

.bz-card-head .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bz-accent), var(--bz-accent-2));
}

.bz-card-body { padding: 18px; }

/* ---------- 步骤与字段 ---------- */
.bz-step + .bz-step {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px dashed var(--bz-line);
}

.bz-step-title {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--bz-ink);
}

.bz-step-title i {
    width: 22px;
    height: 22px;
    border-radius: 7px;
    background: var(--bz-accent-soft);
    color: var(--bz-accent);
    font-style: normal;
    font-size: 12.5px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.bz-field + .bz-field { margin-top: 12px; }

.bz-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--bz-ink-2);
    margin-bottom: 6px;
}

.bz-input {
    width: 100%;
    background: var(--bz-bg-soft);
    border: 1px solid var(--bz-line);
    border-radius: 11px;
    padding: 10px 12px;
    color: var(--bz-ink);
    font-size: 15px;
    font-family: inherit;
    outline: none;
    transition: .16s;
    appearance: none;
}

.bz-input:focus {
    border-color: var(--bz-accent);
    background: var(--bz-card);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--bz-accent) 18%, transparent);
}

.bz-input::placeholder { color: var(--bz-muted); opacity: .75; }
textarea.bz-input { min-height: 84px; resize: vertical; line-height: 1.7; }

.bz-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.bz-row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }

.bz-seg {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    background: var(--bz-bg-soft);
    border: 1px solid var(--bz-line);
    border-radius: 12px;
    padding: 4px;
}

.bz-seg button {
    flex: 1 1 auto;
    min-width: 62px;
    border: 0;
    background: transparent;
    color: var(--bz-ink-2);
    border-radius: 9px;
    padding: 8px 10px;
    font-size: 13.5px;
    font-family: inherit;
    cursor: pointer;
    transition: .16s;
    white-space: nowrap;
}

.bz-seg button:hover { color: var(--bz-accent); }

.bz-seg button.on {
    background: var(--bz-card);
    color: var(--bz-accent);
    font-weight: 700;
    box-shadow: 0 1px 2px rgba(15, 23, 42, .1);
}

.bz-check {
    display: flex;
    gap: 9px;
    align-items: flex-start;
    padding: 7px 0;
    font-size: 14px;
    color: var(--bz-ink-2);
    cursor: pointer;
}

.bz-check input {
    width: 17px;
    height: 17px;
    margin: 4px 0 0;
    accent-color: var(--bz-accent);
    flex: none;
}

.bz-hint {
    font-size: 12.5px;
    color: var(--bz-muted);
    margin-top: 7px;
    line-height: 1.65;
}

/* ---------- 按钮 ---------- */
.bz-actions { display: flex; gap: 10px; margin-top: 18px; }

.bz-btn {
    flex: 1;
    border: 1px solid var(--bz-line);
    background: var(--bz-bg-soft);
    color: var(--bz-ink-2);
    border-radius: 12px;
    padding: 11px 14px;
    font-size: 14.5px;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: .16s;
}

.bz-btn:hover { border-color: var(--bz-accent); color: var(--bz-accent); }

.bz-btn-main {
    border: 0;
    color: #fff;
    background: linear-gradient(135deg, var(--bz-accent), var(--bz-accent-2));
    box-shadow: 0 10px 22px -12px color-mix(in srgb, var(--bz-accent) 70%, transparent);
}

.bz-btn-main:hover { color: #fff; filter: brightness(1.05); }

.bz-btn:disabled { opacity: .6; cursor: not-allowed; }

/* ---------- AI 区 ---------- */
.bz-ai {
    margin-top: 16px;
    border: 1px dashed color-mix(in srgb, var(--bz-accent) 40%, var(--bz-line));
    border-radius: 14px;
    padding: 14px;
    background: linear-gradient(180deg, var(--bz-accent-soft), transparent);
}

.bz-ai h3 {
    font-size: 13.5px;
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 6px;
}

.bz-ai h3 span {
    font-size: 11px;
    font-weight: 800;
    color: #fff;
    background: var(--bz-accent);
    border-radius: 6px;
    padding: 2px 6px;
}

.bz-ai p { font-size: 12.5px; color: var(--bz-muted); }
.bz-ai .bz-btn { margin-top: 10px; width: 100%; }

.bz-ai-out {
    margin-top: 10px;
    background: var(--bz-card);
    border: 1px solid var(--bz-line);
    border-radius: 10px;
    padding: 12px;
    font-size: 13.5px;
    color: var(--bz-ink-2);
    white-space: pre-wrap;
}

/* ---------- 状态 ---------- */
.bz-status {
    font-size: 12.5px;
    color: var(--bz-muted);
    margin-top: 9px;
    min-height: 18px;
}

.bz-status.ok { color: var(--bz-good); }
.bz-status.warn { color: var(--bz-warn); }
.bz-status.bad { color: var(--bz-bad); }

.bz-disclaimer {
    margin-top: 14px;
    font-size: 12px;
    line-height: 1.7;
    color: var(--bz-muted);
    border-top: 1px solid var(--bz-line);
    padding-top: 12px;
}

/* ---------- 结果区 ---------- */
.bz-desk-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--bz-line);
}

.bz-desk-head strong { font-size: 14.5px; }

.bz-desk-body { padding: 18px; }

.bz-empty {
    border: 1px dashed var(--bz-line);
    border-radius: 14px;
    padding: 26px 18px;
    color: var(--bz-muted);
    font-size: 14px;
    text-align: center;
    line-height: 1.9;
}

.bz-empty b { display: block; color: var(--bz-ink-2); font-size: 15px; margin-bottom: 6px; }

/* KPI */
.bz-kpis {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
    gap: 10px;
    margin-bottom: 16px;
}

.bz-kpi {
    background: var(--bz-bg-soft);
    border: 1px solid var(--bz-line);
    border-radius: 13px;
    padding: 12px 13px;
}

.bz-kpi span {
    display: block;
    font-size: 12.5px;
    color: var(--bz-muted);
    margin-bottom: 3px;
}

.bz-kpi b {
    font-size: 21px;
    font-weight: 800;
    letter-spacing: -.5px;
    font-variant-numeric: tabular-nums;
}

.bz-kpi b small { font-size: 12px; font-weight: 600; color: var(--bz-muted); margin-left: 3px; }
.bz-kpi.is-good { background: var(--bz-good-soft); border-color: color-mix(in srgb, var(--bz-good) 30%, var(--bz-line)); }
.bz-kpi.is-good b { color: var(--bz-good); }
.bz-kpi.is-warn { background: var(--bz-warn-soft); border-color: color-mix(in srgb, var(--bz-warn) 30%, var(--bz-line)); }
.bz-kpi.is-warn b { color: var(--bz-warn); }
.bz-kpi.is-bad { background: var(--bz-bad-soft); border-color: color-mix(in srgb, var(--bz-bad) 30%, var(--bz-line)); }
.bz-kpi.is-bad b { color: var(--bz-bad); }

/* 报告纸 */
.bz-sheet {
    background: var(--bz-card);
    border: 1px solid var(--bz-line);
    border-radius: 14px;
    padding: 22px 22px 16px;
}

.bz-sheet > h2 {
    font-size: 19px;
    font-weight: 800;
    letter-spacing: -.2px;
}

.bz-sheet-sub { font-size: 13px; color: var(--bz-muted); margin-top: 4px; }

.bz-sheet-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 18px;
    margin: 12px 0 4px;
    font-size: 12.5px;
    color: var(--bz-muted);
}

.bz-sheet-meta b { color: var(--bz-ink-2); font-weight: 600; }

.bz-sheet h3 {
    font-size: 14.5px;
    font-weight: 800;
    margin: 20px 0 8px;
    padding-left: 10px;
    border-left: 3px solid var(--bz-accent);
    line-height: 1.4;
}

.bz-sheet p, .bz-sheet li { font-size: 14px; color: var(--bz-ink-2); line-height: 1.85; }
.bz-sheet li + li { margin-top: 4px; }
.bz-sheet ul, .bz-sheet ol { margin: 6px 0; }

.bz-sheet-foot {
    margin-top: 18px;
    padding-top: 10px;
    border-top: 1px dashed var(--bz-line);
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 11.5px;
    color: var(--bz-muted);
}

/* 表格 */
.bz-tw { overflow-x: auto; margin: 8px 0 4px; }

.bz-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
    font-variant-numeric: tabular-nums;
}

.bz-table th,
.bz-table td {
    border-bottom: 1px solid var(--bz-line);
    padding: 9px 10px;
    text-align: left;
    vertical-align: top;
    line-height: 1.65;
}

.bz-table th {
    background: var(--bz-bg-soft);
    font-weight: 700;
    font-size: 12.5px;
    color: var(--bz-ink-2);
    white-space: nowrap;
}

.bz-table td.is-num, .bz-table th.is-num { text-align: right; }
.bz-table tbody tr:hover { background: color-mix(in srgb, var(--bz-accent) 5%, transparent); }

/* 提示块 */
.bz-block {
    border: 1px solid var(--bz-line);
    border-left: 3px solid var(--bz-accent);
    background: var(--bz-bg-soft);
    border-radius: 10px;
    padding: 12px 14px;
    margin-top: 14px;
}

.bz-block h4 { font-size: 13.5px; margin-bottom: 5px; }
.bz-block li { font-size: 13.5px; }

.bz-block.warn { border-left-color: var(--bz-warn); background: var(--bz-warn-soft); }
.bz-block.bad { border-left-color: var(--bz-bad); background: var(--bz-bad-soft); }
.bz-block.good { border-left-color: var(--bz-good); background: var(--bz-good-soft); }

/* 勾选清单行 */
.bz-line-item {
    display: flex;
    gap: 9px;
    align-items: flex-start;
    padding: 6px 0;
    border-bottom: 1px dashed var(--bz-line);
    font-size: 13.5px;
    list-style: none;
}

.bz-line-item i {
    width: 15px;
    height: 15px;
    margin-top: 4px;
    border: 1.5px solid var(--bz-line);
    border-radius: 4px;
    flex: none;
}

/* ---------- 正文说明 ---------- */
.bz-notes { margin-top: 30px; display: grid; gap: 16px; }

.bz-note {
    background: var(--bz-card);
    border: 1px solid var(--bz-line);
    border-radius: var(--bz-radius);
    padding: 20px 22px;
    box-shadow: var(--bz-shadow);
}

.bz-note h2 {
    font-size: 17px;
    font-weight: 800;
    margin-bottom: 10px;
}

.bz-note p, .bz-note li { font-size: 14px; color: var(--bz-ink-2); line-height: 1.9; }
.bz-note li + li { margin-top: 6px; }

.bz-faq details {
    border-top: 1px solid var(--bz-line);
    padding: 10px 0;
}

.bz-faq details:first-of-type { border-top: 0; }

.bz-faq summary {
    cursor: pointer;
    font-weight: 700;
    font-size: 14px;
    color: var(--bz-ink);
    list-style: none;
}

.bz-faq summary::-webkit-details-marker { display: none; }
.bz-faq summary::before { content: "＋ "; color: var(--bz-accent); font-weight: 800; }
.bz-faq details[open] summary::before { content: "− "; }
.bz-faq p { margin-top: 7px; color: var(--bz-muted); }

.bz-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }

.bz-links a {
    display: block;
    border: 1px solid var(--bz-line);
    border-radius: 12px;
    padding: 11px 13px;
    font-size: 13.5px;
    color: var(--bz-ink-2);
    background: var(--bz-bg-soft);
    transition: .16s;
}

.bz-links a:hover {
    border-color: var(--bz-accent);
    color: var(--bz-accent);
    text-decoration: none;
    transform: translateY(-1px);
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
    .bz-main { grid-template-columns: 1fr; }
    .bz-side { position: static; }
    .bz-hero { grid-template-columns: 1fr; padding-top: 26px; }
    .bz-hero-art { height: 120px; order: -1; }
}

@media (max-width: 560px) {
    .bz-app { font-size: 14.5px; }
    .bz-row, .bz-row-3 { grid-template-columns: 1fr; }
    .bz-kpis { grid-template-columns: 1fr 1fr; }
    .bz-sheet { padding: 16px 14px 12px; }
}

/* ---------- 打印 ---------- */
@media print {
    .bz-app { background: #fff; padding: 0; }
    .bz-bar, .bz-hero-art, .bz-side, .bz-desk-head, .bz-notes, .bz-noprint, .back-to-top { display: none !important; }
    .bz-wrap { max-width: none; padding: 0; }
    .bz-main { display: block; }
    .bz-card { border: 0; box-shadow: none; }
    .bz-desk-body { padding: 0; }
    .bz-sheet { border: 0; padding: 0; }
    .bz-kpis { display: none; }
    .bz-sheet p, .bz-sheet li, .bz-table { font-size: 10.5pt; }
    .bz-sheet h2 { font-size: 15pt; }
    .bz-sheet h3 { font-size: 12pt; }
    .bz-table th, .bz-table td { padding: 5px 6px; }
}