:root {
  --ink: #142033;
  --text: #344256;
  --muted: #6b7788;
  --line: #dce4ec;
  --paper: #f5f7fa;
  --white: #fff;
  --blue: #1769e0;
  --blue-dark: #0f4fb5;
  --blue-soft: #eaf3ff;
  --green: #0d8d70;
  --green-soft: #e9f7f2;
  --amber: #a8640b;
  --amber-soft: #fff5df;
  --red: #b7443b;
  --shadow: 0 18px 46px rgba(20, 32, 51, .1);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; line-height: 1.65; }
body, button, input, textarea, select, a { letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
img { max-width: 100%; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid rgba(23, 105, 224, .24); outline-offset: 3px; }
.site-header { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, .96); backdrop-filter: blur(12px); }
.site-nav { width: min(1160px, calc(100% - 40px)); min-height: 68px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand img { width: 38px; height: 38px; border-radius: 8px; }
.brand span { display: grid; line-height: 1.15; }
.brand strong { font-size: 18px; }
.brand small { margin-top: 3px; color: var(--muted); font-size: 10px; font-weight: 700; }
.nav-links { display: flex; align-items: center; gap: 5px; color: var(--muted); font-size: 14px; }
.nav-links > a:not(.button) { padding: 9px 11px; border-radius: 6px; }
.nav-links > a:not(.button):hover, .nav-links > a.active { color: var(--blue-dark); background: var(--blue-soft); }
.button { min-height: 42px; padding: 10px 17px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid transparent; border-radius: 7px; font-weight: 850; font-size: 14px; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { transform: translateY(-1px); }
.button.primary { color: #fff; background: var(--blue); box-shadow: 0 10px 24px rgba(23, 105, 224, .2); }
.button.primary:hover { background: var(--blue-dark); }
.button.secondary { border-color: var(--line); background: #fff; }
.button.secondary:hover { border-color: #b7c7d8; box-shadow: 0 8px 22px rgba(20, 32, 51, .08); }
.button[disabled] { opacity: .55; cursor: wait; transform: none; }
.mobile-cta { display: none; }
.hero { border-bottom: 1px solid var(--line); background: #fff; }
.hero-inner { width: min(1160px, calc(100% - 40px)); margin: auto; padding: 76px 0 72px; display: grid; grid-template-columns: minmax(0, .92fr) minmax(460px, 1.08fr); gap: 64px; align-items: center; }
.eyebrow { margin-bottom: 15px; color: var(--blue-dark); font-size: 13px; font-weight: 900; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 { max-width: 680px; margin: 0; font-size: 49px; line-height: 1.14; font-weight: 950; }
.hero-copy { max-width: 660px; margin: 21px 0 0; color: var(--text); font-size: 17px; }
.hero-actions { margin-top: 29px; display: flex; flex-wrap: wrap; gap: 11px; }
.assurances { margin: 22px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 18px; list-style: none; color: var(--muted); font-size: 12px; }
.assurances li::before { content: "✓"; margin-right: 6px; color: var(--green); font-weight: 900; }
.report-preview { border: 1px solid #cbd7e3; border-radius: 8px; background: #fff; box-shadow: var(--shadow); overflow: hidden; }
.report-bar { min-height: 52px; padding: 0 18px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); background: #f8fafc; }
.report-bar strong { font-size: 13px; }
.report-bar span { color: var(--green); font-size: 11px; font-weight: 850; }
.report-body { padding: 20px; }
.report-context { padding: 13px 14px; border-left: 3px solid var(--blue); background: var(--blue-soft); color: var(--text); font-size: 13px; }
.report-grid { margin-top: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.report-card { min-height: 116px; padding: 14px; border: 1px solid var(--line); border-radius: 6px; }
.report-card span { display: block; color: var(--muted); font-size: 10px; }
.report-card strong { display: block; margin-top: 5px; font-size: 14px; }
.report-card p { margin: 5px 0 0; color: var(--muted); font-size: 11px; }
.report-note { margin: 13px 0 0; color: var(--muted); font-size: 11px; }
.band { padding: 78px 0; }
.band.white { border-block: 1px solid var(--line); background: #fff; }
.inner { width: min(1160px, calc(100% - 40px)); margin: auto; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.kicker { margin-bottom: 8px; color: var(--blue); font-size: 13px; font-weight: 900; }
h2 { margin: 0; font-size: 36px; line-height: 1.24; }
.section-lead { margin: 13px 0 0; color: var(--muted); font-size: 16px; }
.deliverables { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); background: var(--line); gap: 1px; }
.deliverable { min-height: 206px; padding: 24px; background: #fff; }
.deliverable b { color: var(--blue); font-size: 12px; }
.deliverable h3 { margin: 22px 0 7px; font-size: 18px; }
.deliverable p { margin: 0; color: var(--muted); font-size: 13px; }
.sample-layout { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(330px, .9fr); gap: 24px; align-items: start; }
.sample-sheet { border: 1px solid var(--line); background: #fff; box-shadow: 0 10px 28px rgba(20, 32, 51, .07); }
.sample-head { padding: 22px 24px; display: flex; justify-content: space-between; gap: 18px; border-bottom: 1px solid var(--line); }
.sample-head strong { font-size: 17px; }
.sample-head span { align-self: start; padding: 4px 7px; border-radius: 4px; background: var(--amber-soft); color: var(--amber); font-size: 10px; font-weight: 900; }
.sample-row { padding: 18px 24px; display: grid; grid-template-columns: 118px 1fr; gap: 18px; border-bottom: 1px solid var(--line); }
.sample-row:last-child { border-bottom: 0; }
.sample-row b { color: var(--muted); font-size: 12px; }
.sample-row strong { display: block; font-size: 14px; }
.sample-row p { margin: 5px 0 0; color: var(--muted); font-size: 12px; }
.sample-side { padding: 24px; border: 1px solid var(--line); border-radius: 7px; background: #fff; }
.sample-side h3 { margin: 0; font-size: 20px; }
.sample-side ul { margin: 18px 0 22px; padding: 0; display: grid; gap: 11px; list-style: none; }
.sample-side li { padding-left: 25px; position: relative; color: var(--text); font-size: 13px; }
.sample-side li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 900; }
.form-layout { display: grid; grid-template-columns: minmax(300px, .72fr) minmax(0, 1.28fr); gap: 42px; align-items: start; }
.form-intro { position: sticky; top: 102px; }
.fit-list { margin-top: 24px; display: grid; gap: 1px; border: 1px solid var(--line); background: var(--line); }
.fit-item { padding: 16px; background: #fff; }
.fit-item strong { display: block; font-size: 13px; }
.fit-item span { display: block; margin-top: 3px; color: var(--muted); font-size: 12px; }
.form-card { padding: 28px; border: 1px solid #cbd7e3; border-radius: 8px; background: #fff; box-shadow: var(--shadow); }
.form-card h2 { font-size: 25px; }
.form-card > p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.form-grid { margin-top: 23px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label, .consent { font-size: 12px; font-weight: 800; }
.required { color: var(--red); }
.input, .select, .textarea { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid #c7d2de; border-radius: 6px; color: var(--ink); background: #fff; }
.textarea { min-height: 112px; resize: vertical; }
.input:focus, .select:focus, .textarea:focus { border-color: var(--blue); outline: 3px solid rgba(23, 105, 224, .1); }
.consent { grid-template-columns: auto 1fr; align-items: start; gap: 9px; color: var(--text); font-weight: 500; }
.consent input { margin-top: 5px; }
.consent a { color: var(--blue-dark); text-decoration: underline; text-underline-offset: 2px; }
.form-warning { margin: 14px 0 0; padding: 10px 12px; border-left: 3px solid var(--amber); background: var(--amber-soft); color: #65491f; font-size: 11px; }
.form-actions { margin-top: 18px; display: flex; align-items: center; gap: 14px; }
.form-status { min-height: 20px; color: var(--red); font-size: 12px; }
.honeypot { position: absolute !important; left: -9999px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.success { padding: 28px; border: 1px solid #a9dacb; border-radius: 7px; background: var(--green-soft); }
.success b { display: block; color: var(--green); font-size: 12px; }
.success h2 { margin-top: 8px; font-size: 26px; }
.success p { color: var(--text); }
.success small { display: block; margin: 14px 0; color: var(--muted); }
.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 42px; align-items: start; }
.article { padding: 34px; border: 1px solid var(--line); background: #fff; }
.article h1 { font-size: 42px; }
.article h2 { margin-top: 40px; font-size: 25px; }
.article h3 { margin-top: 26px; font-size: 18px; }
.article p, .article li { color: var(--text); font-size: 14px; }
.article ul { padding-left: 21px; }
.notice { padding: 13px 15px; border-left: 3px solid var(--blue); background: var(--blue-soft); color: var(--text); font-size: 13px; }
.side-nav { position: sticky; top: 92px; padding: 20px; border: 1px solid var(--line); background: #fff; }
.side-nav strong { font-size: 13px; }
.side-nav a { display: block; margin-top: 10px; color: var(--blue-dark); font-size: 12px; }
.site-footer { border-top: 1px solid var(--line); background: #fff; }
.footer-inner { width: min(1160px, calc(100% - 40px)); min-height: 94px; margin: auto; display: flex; justify-content: space-between; align-items: center; gap: 24px; color: var(--muted); font-size: 12px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a:hover { color: var(--blue-dark); }
@media (max-width: 940px) {
  .hero-inner, .form-layout, .content-layout { grid-template-columns: 1fr; }
  .form-intro, .side-nav { position: static; }
  .deliverables { grid-template-columns: 1fr 1fr; }
  .sample-layout { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .site-nav { width: calc(100% - 28px); min-height: 62px; }
  .brand img { width: 34px; height: 34px; }
  .brand small, .nav-links { display: none; }
  .mobile-cta { display: inline-flex; min-height: 38px; padding: 8px 12px; }
  .hero-inner, .inner, .footer-inner { width: calc(100% - 28px); }
  .hero-inner { padding: 32px 0; gap: 28px; }
  h1, .article h1 { font-size: 36px; }
  h2 { font-size: 29px; }
  .report-grid { grid-template-columns: 1fr 1fr; }
  .report-card { min-height: 100px; padding: 10px; }
  .report-card:nth-child(n+3), .report-card p, .report-note { display: none; }
  .form-grid, .deliverables { grid-template-columns: 1fr; }
  .band { padding: 60px 0; }
  .sample-row { grid-template-columns: 1fr; gap: 6px; }
  .form-card, .article { padding: 20px 16px; }
  .field.full { grid-column: auto; }
  .form-actions { align-items: stretch; flex-direction: column; }
  .form-actions .button { width: 100%; }
  .footer-inner { padding: 22px 0; align-items: flex-start; flex-direction: column; }
}