@charset "utf-8";
/*
 * 标必审 · 全站设计系统（v2 品牌视觉：墨黑 + 信号赭橙）
 * 气质对标 B/C：商务、克制、锋利。营销页、工作台、报告外壳共用同一套色板。
 * 结构类名全部保留，仅视觉 token、几何与字体换代的版本。
 */

:root {
  --bg: #f5f5f3;
  --panel: #fff;
  --panel-2: #f7f7f5;
  --soft: #f0ede6;
  --text: #14161a;
  --muted: #54575f;
  --faint: #8b8f97;
  --line: rgba(20, 22, 26, .16);
  --line-2: rgba(20, 22, 26, .08);
  --accent: #e8590c;
  --accent-2: #ffa94d;
  --accent-strong: #9a3412;
  --accent-soft: rgba(232, 89, 12, .09);
  --ok: #0f7b3c;
  --ok-soft: rgba(15, 123, 60, .1);
  --warn: #b26a00;
  --warn-soft: rgba(178, 106, 0, .12);
  --danger: #b3261e;
  --danger-soft: rgba(179, 38, 30, .09);
  --r: 10px;
  --r-sm: 8px;
  --r-xs: 6px;
  --r-pill: 6px;
  --shadow: 0 12px 28px rgba(20, 22, 26, .1);
  --shadow-sm: 0 1px 2px rgba(20, 22, 26, .05);
  --nav-h: 64px;
  --maxw: 1120px;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
}

* { box-sizing: border-box; margin: 0; padding: 0 }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100% }
body {
  font-family: var(--font);
  color: var(--text);
  background: linear-gradient(180deg, #edeae1 0, var(--bg) 38%, #fafaf8 100%) no-repeat;
  min-height: 100vh;
  line-height: 1.7;
  padding-top: var(--nav-h);
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image: linear-gradient(rgba(20, 22, 26, .028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 22, 26, .028) 1px, transparent 1px);
  background-size: 28px 28px;
}
main, .site-nav, .site-footer { position: relative; z-index: 1 }
a { color: inherit; text-decoration: none }
img, svg { max-width: 100%; vertical-align: middle }
button, input, select, textarea { font: inherit; color: inherit }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px }
::selection { background: rgba(232, 89, 12, .18) }

/* ==================== 布局 ==================== */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px }
.wrap-wide { max-width: 1320px }
.sec { padding: 72px 0 }
.sec-tight { padding: 48px 0 }
.sec-alt { background: rgba(250, 250, 248, .8); border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2) }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 40px }
.sec-head h1, .sec-head h2 { font-family: var(--font-display); font-size: clamp(24px, 3.4vw, 36px); font-weight: 700; letter-spacing: .01em; line-height: 1.32 }
.sec-head p { color: var(--muted); font-size: 15px; margin-top: 12px }
.eyebrow { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px }
.grid { display: grid; gap: 18px }
.g2 { grid-template-columns: repeat(2, 1fr) }
.g3 { grid-template-columns: repeat(3, 1fr) }
.g4 { grid-template-columns: repeat(4, 1fr) }
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center }
.center { text-align: center }
.mt0 { margin-top: 0 } .mt1 { margin-top: 12px } .mt2 { margin-top: 20px } .mt3 { margin-top: 32px }
.lead { font-size: 17px; color: var(--muted) }
.note { color: var(--faint); font-size: 13px }

/* ==================== 导航 ==================== */
.site-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 900; height: var(--nav-h); background: rgba(250, 250, 248, .9); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line) }
.nav-in { max-width: 1320px; margin: 0 auto; height: var(--nav-h); padding: 0 20px; display: flex; align-items: center; gap: 10px }
.brand { display: flex; align-items: center; gap: 9px; flex-shrink: 0; margin-right: 18px }
.brand-mark { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; flex-shrink: 0 }
.brand-mark svg { width: 40px; height: 40px; display: block }
.brand-name { font-family: var(--font-display); font-size: 19px; font-weight: 700; letter-spacing: .04em }
.brand-name small { display: block; font-family: var(--font); font-size: 10px; font-weight: 600; letter-spacing: .18em; color: var(--faint) }
.nav-links { display: flex; gap: 2px; flex: 1 }
.nav-links a { padding: 7px 13px; border-radius: var(--r-xs); font-size: 14px; font-weight: 500; color: var(--muted); transition: background .16s, color .16s; white-space: nowrap }
.nav-links a:hover { color: var(--accent-strong); background: var(--accent-soft) }
.nav-links a.on { color: var(--accent-strong); background: var(--accent-soft); font-weight: 700 }
.nav-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0 }
.nav-burger { display: none; width: 38px; height: 38px; border: 1px solid var(--line); border-radius: var(--r-xs); background: var(--panel); color: var(--text); font-size: 18px; cursor:pointer }

/* ==================== 按钮 ==================== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 22px; border-radius: var(--r-xs); border: 1px solid transparent; font-size: 14px; font-weight: 700; cursor: pointer; transition: background .16s, color .16s, border-color .16s, box-shadow .16s; white-space: nowrap }
.btn-pri { background: var(--accent); color: #fff; box-shadow: inset 0 -2px 0 rgba(0, 0, 0, .18) }
.btn-pri:hover { background: var(--accent-strong) }
.btn-ghost { background: var(--panel); color: var(--text); border-color: var(--line) }
.btn-ghost:hover { border-color: var(--text); color: var(--text) }
.btn-ondark { background: rgba(255, 255, 255, .1); color: #fff; border-color: rgba(255, 255, 255, .3) }
.btn-ondark:hover { background: rgba(255, 255, 255, .18); color: #fff }
.btn-lg { padding: 14px 30px; font-size: 16px }
.btn-sm { padding: 8px 16px; font-size: 13px }
.btn-blk { width: 100% }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap }

/* ==================== 面板 / 卡片 ==================== */
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow-sm) }
.pad { padding: 26px }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 24px; transition: transform .18s, box-shadow .18s, border-color .18s; display: flex; flex-direction: column }
.card:hover { border-color: rgba(20, 22, 26, .42); box-shadow: var(--shadow) }
.card h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px }
.card h3 a:hover { color: var(--accent-strong) }
.card p { font-size: 14px; color: var(--muted) }
.card-ico { width: 44px; height: 44px; border-radius: var(--r-xs); background: linear-gradient(140deg, var(--soft), #f6e3d0); color: var(--accent-strong); display: flex; align-items: center; justify-content: center; font-size: 21px; margin-bottom: 14px }
.card-ico.danger { background: var(--danger-soft); color: var(--danger) }
.card-ico.warn { background: var(--warn-soft); color: var(--warn) }
.card-ico.ok { background: var(--ok-soft); color: var(--ok) }
.card-tag { position: absolute }
.card-li { list-style: none; margin: 14px 0 0; padding: 0; display: flex; flex-direction: column; gap: 9px }
.card-li li { display: flex; gap: 9px; font-size: 14px; color: var(--muted); line-height: 1.65 }
.card-li li i:first-child { color: var(--ok); font-size: 15px; margin-top: 3px; flex-shrink: 0 }
.card-li li.no i:first-child { color: var(--faint) }
.card-feat { display: flex; gap: 14px; padding: 16px; border: 1px solid var(--line-2); border-radius: var(--r-sm); background: rgba(250, 250, 248, .8) }
.card-feat + .card-feat { margin-top: 12px }
.card-feat h4 { font-size: 15px; font-weight: 700 }
.card-feat p { font-size: 13px; color: var(--muted); margin-top: 3px }

/* ==================== 徽标 / 状态 ==================== */
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: var(--r-pill); font-size: 12px; font-weight: 700; background: var(--accent-soft); color: var(--accent-strong) }
.chip.ok { background: var(--ok-soft); color: var(--ok) }
.chip.warn { background: var(--warn-soft); color: #8a5600 }
.chip.danger { background: var(--danger-soft); color: #8f1f1a }
.chip.mute { background: rgba(139, 143, 151, .16); color: var(--muted) }
.tag { display: inline-flex; padding: 4px 11px; border-radius: var(--r-xs); background: var(--soft); color: var(--accent-strong); font-size: 13px; font-weight: 600 }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px }
.stat { text-align: center }
.stat b { display: block; font-family: var(--font-display); font-size: 38px; font-weight: 700; color: var(--accent-strong); line-height: 1.15; font-variant-numeric: tabular-nums }
.stat span { font-size: 12px; color: var(--faint) }

/* ==================== Hero ==================== */
.hero { padding: 68px 0 56px; position: relative; overflow: hidden }
.hero::after { content: ""; position: absolute; right: 0; top: 0; width: 5px; height: 200px; background: linear-gradient(180deg, var(--accent) 0%, rgba(232, 89, 12, 0) 100%); pointer-events: none }
.hero h1 { font-family: var(--font-display); font-size: clamp(30px, 4.6vw, 50px); font-weight: 700; line-height: 1.28; letter-spacing: .01em }
.hero h1 em { font-style: normal; color: var(--accent); position: relative }
.hero-sub { font-size: 17px; color: var(--muted); margin: 18px 0 28px; max-width: 560px }
.hero-strip { display: flex; flex-wrap: wrap; gap: 26px; margin-top: 34px }
.hero-note { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); margin-top: 16px }
.hero-note i { color: var(--ok) }

/* ==================== 报告样例（真实字段，非装饰图）==================== */
.mock { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); overflow: hidden }
.mock-bar { display: flex; align-items: center; gap: 8px; padding: 13px 18px; border-bottom: 1px solid var(--line-2); background: var(--panel-2); font-size: 13px; font-weight: 700 }
.mock-bar i { color: var(--accent) }
.mock-bar span { margin-left: auto; font-weight: 500; color: var(--faint); font-size: 12px }
.mock-body { padding: 6px 18px 14px }
.mock-row { display: flex; align-items: flex-start; gap: 12px; padding: 13px 0; border-bottom: 1px dashed var(--line-2) }
.mock-row:last-child { border-bottom: none }
.mock-row .dot { width: 8px; height: 8px; border-radius: 2px; margin-top: 9px; flex-shrink: 0 }
.mock-row .txt { flex: 1; min-width: 0 }
.mock-row .t1 { font-size: 14px; font-weight: 600 }
.mock-row .t2 { font-size: 12px; color: var(--faint); margin-top: 2px }
.mock-foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 18px; border-top: 1px solid var(--line-2); background: var(--soft) }
.mock-foot b { font-family: var(--font-display); font-size: 30px; font-weight: 700; color: var(--accent-strong); font-variant-numeric: tabular-nums }
.mock-foot .k { font-size: 12px; color: var(--muted) }

/* ==================== 步骤 ==================== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: st }
.step { position: relative; padding: 26px 22px 22px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r) }
.step::before { counter-increment: st; content: counter(st); position: absolute; top: -18px; left: 22px; width: 36px; height: 36px; border-radius: var(--r-xs); background: linear-gradient(140deg, var(--accent), var(--accent-strong)); color: #fff; font-size: 15px; font-weight: 800; display: flex; align-items: center; justify-content: center; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .12) }
.step h3 { font-size: 16px; font-weight: 700; margin: 6px 0 6px }
.step p { font-size: 14px; color: var(--muted) }

/* ==================== 定价 ==================== */
.price-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; align-items: start }
.price { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 26px 22px }
.price.hot { border-color: var(--accent); box-shadow: var(--shadow) }
.price.hot::before { content: "推荐"; position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #fff; padding: 3px 14px; border-radius: var(--r-pill); font-size: 11px; font-weight: 700 }
.price h3 { font-size: 16px; font-weight: 700 }
.price .amt { font-family: var(--font-display); font-size: 36px; font-weight: 700; color: var(--accent-strong); margin: 10px 0 2px; font-variant-numeric: tabular-nums }
.price .amt small { font-family: var(--font); font-size: 13px; font-weight: 600; color: var(--faint) }
.price .per { font-size: 13px; color: var(--muted) }
.price ul { list-style: none; padding: 0; margin: 16px 0 18px; display: flex; flex-direction: column; gap: 8px }
.price ul li { display: flex; gap: 8px; font-size: 13px; color: var(--muted) }
.price ul li i:first-child { color: var(--ok) }

/* ==================== 表格 ==================== */
.tbl { width: 100%; border-collapse: collapse; font-size: 14px }
.tbl th, .tbl td { padding: 12px 14px; border-bottom: 1px solid var(--line-2); text-align: left; vertical-align: top }
.tbl th { background: var(--panel-2); font-size: 13px; font-weight: 700; color: var(--muted); white-space: nowrap }
.tbl td.num { text-align: right; font-variant-numeric: tabular-nums }
.tbl tbody tr:hover td { background: rgba(232, 89, 12, .05) }
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--panel) }

/* ==================== FAQ ==================== */
.faq { max-width: 820px; margin: 0 auto }
.faq-item { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-sm); margin-bottom: 10px; overflow: hidden }
.faq-q { padding: 16px 20px; font-size: 15px; font-weight: 700; display: flex; align-items: center; justify-content: space-between; gap: 12px; cursor: pointer; list-style: none }
.faq-q::-webkit-details-marker { display: none }
.faq-q i { color: var(--faint); transition: transform .2s; flex-shrink: 0 }
.faq-item[open] .faq-q i { transform: rotate(45deg); color: var(--accent) }
.faq-a { padding: 0 20px 18px; font-size: 14px; color: var(--muted); line-height: 1.85 }
.faq-a p + p { margin-top: 10px }
.faq-a ul { margin: 10px 0 0 20px }

/* ==================== 资讯 / 列表 ==================== */
.list-row { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line-2) }
.list-row:last-child { border-bottom: none }
.list-row h3 { font-size: 16px; font-weight: 700 }
.list-row p { font-size: 14px; color: var(--muted); margin-top: 4px }
.list-row .when { font-size: 12px; color: var(--faint); margin-top: 8px }

/* ==================== 提示条 ==================== */
.callout { display: flex; gap: 12px; padding: 16px 18px; border-radius: var(--r-sm); background: var(--soft); border: 1px solid var(--line-2); border-left: 3px solid var(--accent); font-size: 14px; color: var(--muted) }
.callout i { color: var(--accent); font-size: 17px; margin-top: 2px }
.callout.warn { background: var(--warn-soft); border-color: rgba(178, 106, 0, .25); border-left-color: var(--warn) }
.callout.warn i { color: var(--warn) }
.callout.danger { background: var(--danger-soft); border-color: rgba(179, 38, 30, .22); border-left-color: var(--danger) }
.callout.danger i { color: var(--danger) }
.notice-bar { background: linear-gradient(120deg, #14161a 0%, #1c1f24 58%, #2a1d13 100%); color: #fff; border-radius: var(--r); padding: 30px 32px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; position: relative; overflow: hidden; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .06) }
.notice-bar::after { content: ""; position: absolute; right: -80px; top: -80px; width: 260px; height: 260px; border-radius: 50%; background: radial-gradient(circle, rgba(232, 89, 12, .4), transparent 66%) }
.notice-bar h2 { font-family: var(--font-display); font-size: clamp(20px, 2.6vw, 28px); font-weight: 700; position: relative; z-index: 1 }
.notice-bar p { font-size: 14px; color: rgba(255, 255, 255, .74); margin-top: 6px; position: relative; z-index: 1 }
.notice-bar .btn-row { position: relative; z-index: 1 }

/* ==================== 表单 ==================== */
.fld { margin-bottom: 16px }
.fld label { display: block; font-size: 13px; font-weight: 700; color: var(--muted); margin-bottom: 6px }
.fld input, .fld textarea, .fld select { width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: var(--r-xs); background: var(--panel); font-size: 14px; transition: border-color .16s, box-shadow .16s }
.fld input:focus, .fld textarea:focus, .fld select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft) }
.fld textarea { min-height: 120px; resize: vertical }
.fld .hint { font-size: 12px; color: var(--faint); margin-top: 5px }

/* ==================== 页脚 ==================== */
.site-footer { background: var(--panel); border-top: 1px solid var(--line); margin-top: 72px }
.foot-cta { padding: 52px 24px; text-align: center; background: linear-gradient(180deg, var(--soft), rgba(250, 250, 248, 0)) }
.foot-cta h2 { font-family: var(--font-display); font-size: clamp(21px, 2.8vw, 28px); font-weight: 700 }
.foot-cta p { color: var(--muted); font-size: 15px; margin: 8px auto 22px; max-width: 560px }
.foot-main { max-width: var(--maxw); margin: 0 auto; padding: 48px 24px 32px; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px }
.foot-main h4 { font-size: 13px; font-weight: 800; letter-spacing: .06em; color: var(--text); margin-bottom: 14px }
.foot-main a { display: block; font-size: 14px; color: var(--muted); padding: 5px 0; transition: color .16s }
.foot-main a:hover { color: var(--accent-strong) }
.foot-desc { font-size: 13px; color: var(--muted); line-height: 1.85; margin-top: 12px; max-width: 320px }
.foot-bottom { max-width: var(--maxw); margin: 0 auto; padding: 18px 24px 28px; border-top: 1px solid var(--line-2); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12px; color: var(--faint) }
.foot-bottom a { color: var(--faint) }
.foot-bottom a:hover { color: var(--accent-strong) }
.foot-legal { display: flex; gap: 18px; flex-wrap: wrap }

/* ==================== 响应式 ==================== */
@media (max-width:1080px) {
  .g4, .price-grid { grid-template-columns: repeat(2, 1fr) }
  .foot-main { grid-template-columns: 1fr 1fr; gap: 28px }
}
@media (max-width:860px) {
  .nav-links { display: none; position: absolute; top: var(--nav-h); left: 0; right: 0; flex-direction: column; gap: 0; background: rgba(252, 252, 250, .98); border-bottom: 1px solid var(--line); padding: 8px 16px 16px; box-shadow: var(--shadow) }
  .nav-links.open { display: flex }
  .nav-links a { padding: 12px 10px; border-bottom: 1px solid var(--line-2); border-radius: 0 }
  .nav-burger { display: block }
  .split { grid-template-columns: 1fr; gap: 32px }
  .split .mock { order: -1 }
  .steps { grid-template-columns: 1fr }
  .step { margin-top: 18px }
  .g3 { grid-template-columns: repeat(2, 1fr) }
}
@media (max-width:640px) {
  :root { --nav-h: 58px }
  body { padding-top: 58px }
  .sec { padding: 52px 0 }
  .wrap { padding: 0 16px }
  .hero { padding-top: 40px }
  .g2, .g3, .g4, .price-grid { grid-template-columns: 1fr }
  .foot-main { grid-template-columns: 1fr; gap: 22px }
  .foot-cta { padding: 40px 16px }
  .nav-right .btn-ghost { display: none }
  .hero-strip { gap: 18px }
  .stat b { font-size: 30px }
  .price .amt { font-size: 30px }
  .notice-bar { padding: 24px 20px }
}