:root {
  --ink: #142235;
  --muted: #617085;
  --line: #dbe4ee;
  --surface: #f4f7fb;
  --soft: #eef7fb;
  --paper: #ffffff;
  --primary: #1e6a8d;
  --primary-dark: #0f4968;
  --accent: #e67d3e;
  --shadow: 0 20px 50px rgba(20, 34, 53, .10);
}

* { box-sizing: border-box; }
html { color: var(--ink); background: var(--paper); font-family: -apple-system, "Microsoft YaHei", "PingFang SC", sans-serif; line-height: 1.6; }
body { margin: 0; min-width: 0; overflow-x: hidden; }
a { color: inherit; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.narrow { max-width: 760px; }
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(255, 255, 255, .96); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 800; letter-spacing: .02em; white-space: nowrap; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; color: white; background: var(--primary); font-size: 12px; letter-spacing: -.05em; }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 700; }
.site-nav a:hover, .site-nav a.active { color: var(--primary-dark); }
.menu-toggle { display: none; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); background: white; padding: 8px 12px; font: inherit; font-size: 14px; }
.hero { padding: 92px 0 100px; background: linear-gradient(135deg, #f7fbfe 0%, #ffffff 60%); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); align-items: center; gap: 72px; }
.eyebrow { margin: 0 0 12px; color: var(--primary); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 { max-width: 700px; margin: 0; font-size: clamp(38px, 5vw, 68px); line-height: 1.14; letter-spacing: -.045em; }
h1 span { color: var(--primary); }
h2 { margin: 0; font-size: clamp(28px, 3vw, 40px); line-height: 1.2; letter-spacing: -.03em; }
h3 { margin: 0 0 8px; font-size: 18px; line-height: 1.35; }
.lede { max-width: 640px; margin: 24px 0 0; color: var(--muted); font-size: 18px; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 20px; border: 1px solid transparent; border-radius: 9px; text-decoration: none; font-weight: 800; font-size: 14px; }
.button-primary { color: white; background: var(--accent); }
.button-primary:hover { background: #c9652e; }
.button-secondary { color: var(--primary-dark); background: white; border-color: #a9c4d3; }
.button-secondary:hover { background: #eef7fb; }
.microcopy { margin: 16px 0 0; color: var(--muted); font-size: 12px; }
.hero-card { overflow: hidden; border: 1px solid #d7e5ee; border-radius: 18px; background: white; box-shadow: var(--shadow); transform: rotate(1.5deg); }
.window-bar { display: flex; align-items: center; gap: 7px; padding: 15px 18px; color: var(--muted); background: #f5f8fa; border-bottom: 1px solid var(--line); font-size: 12px; }
.window-bar span { width: 8px; height: 8px; border-radius: 50%; background: #bdd2dc; }
.window-bar b { margin-left: auto; font-weight: 700; }
.hero-card-body { padding: 30px; }
.metric-row { display: flex; gap: 64px; margin-bottom: 30px; }
.metric-row small, .progress-label { color: var(--muted); font-size: 12px; }
.metric-row strong { display: block; margin-top: 3px; font-size: 34px; line-height: 1.1; }
.accent-text { color: var(--accent); }
.progress-label { display: flex; justify-content: space-between; margin-bottom: 8px; }
.progress { height: 7px; overflow: hidden; border-radius: 99px; background: #e9eff3; }
.progress span { display: block; width: 72%; height: 100%; border-radius: inherit; background: var(--primary); }
.table-line { display: flex; align-items: center; gap: 10px; padding: 17px 0; border-bottom: 1px solid #edf1f4; font-size: 13px; }
.table-line em { margin-left: auto; color: var(--muted); font-style: normal; font-size: 11px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; flex: 0 0 auto; }.green { background: #4aa579; }.blue { background: #5d9fc0; }.gray { background: #b4c0c9; }
.section { padding: 92px 0; }.section-muted { background: var(--surface); }.section-dark { color: white; background: var(--primary-dark); }.section-heading { max-width: 720px; margin-bottom: 38px; }.split-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: end; margin-bottom: 42px; }.split-heading > p { max-width: 440px; margin: 0; color: var(--muted); }.dark-heading > p { color: #c9dce6; }
.card-grid { display: grid; gap: 18px; }.three-cols { grid-template-columns: repeat(3, minmax(0, 1fr)); }.info-card, .plan-card, .step-card, .side-note { padding: 28px; border: 1px solid var(--line); border-radius: 14px; background: white; }.info-card p, .plan-card p, .step-card p, .side-note p { margin: 0; color: var(--muted); }.icon-tile { display: grid; place-items: center; width: 38px; height: 38px; margin-bottom: 30px; border-radius: 10px; color: var(--primary-dark); background: #e6f3f8; font-size: 12px; font-weight: 800; }.workflow-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }.workflow-step { padding-top: 20px; border-top: 2px solid #aac7d4; }.workflow-step span, .step-card > span { display: inline-block; margin-bottom: 22px; color: var(--accent); font-size: 13px; font-weight: 800; }.workflow-step p { margin: 0; color: var(--muted); font-size: 14px; }
.page-hero { padding: 82px 0 74px; background: var(--surface); }.page-hero h1 { font-size: clamp(38px, 6vw, 60px); }.draft-note { display: inline-block; margin: 22px 0 0; padding: 8px 12px; color: #765223; background: #fff4df; border-radius: 7px; font-size: 13px; }.plan-card { display: flex; flex-direction: column; min-height: 270px; }.plan-card h2 { margin: 8px 0 8px; font-size: 32px; }.plan-card .button { margin-top: auto; align-self: flex-start; }.plan-label { color: var(--primary) !important; font-weight: 800; }.plan-card.featured { border: 2px solid var(--primary); box-shadow: var(--shadow); }.notice { margin-top: 26px; padding: 22px 26px; border-left: 4px solid var(--accent); background: #fff8ee; }.notice p { margin: 6px 0 0; color: var(--muted); }.two-col { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(240px, .65fr); gap: 20px; }.download-card { display: flex; gap: 22px; align-items: flex-start; padding: 34px; border: 1px solid var(--line); border-radius: 14px; background: white; box-shadow: var(--shadow); }.file-badge { display: grid; place-items: center; width: 58px; height: 58px; border-radius: 14px; color: white; background: var(--primary); font-size: 13px; font-weight: 800; }.download-card h2 { margin-bottom: 8px; font-size: 25px; }.download-card p { margin: 4px 0; color: var(--muted); }.download-card .button { margin-top: 24px; }.hash { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; }.check-list { display: grid; gap: 12px; margin: 16px 0 0; padding: 0; color: var(--muted); list-style: none; }.check-list li::before { content: "✓"; margin-right: 9px; color: var(--primary); font-weight: 800; }.content-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 20px; }.steps-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }.step-card { min-height: 220px; }.step-card h2 { margin-bottom: 10px; font-size: 22px; }.step-card code { padding: 3px 5px; color: var(--primary-dark); background: #edf5f8; border-radius: 4px; font-size: 12px; }.contact-placeholder { display: flex; align-items: center; justify-content: space-between; gap: 26px; margin-top: 22px; padding: 30px; border: 1px dashed #a9c4d3; border-radius: 14px; background: #f7fbfd; }.contact-placeholder p { margin: 0; color: var(--muted); }.placeholder-box { min-width: 190px; padding: 28px 18px; text-align: center; color: var(--muted); background: white; border: 1px dashed #a9c4d3; border-radius: 10px; font-size: 12px; }.placeholder-box span, .placeholder-text { color: var(--primary-dark); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; }.faq-list { max-width: 820px; }.faq-list details { border-bottom: 1px solid var(--line); }.faq-list summary { cursor: pointer; padding: 22px 0; font-size: 18px; font-weight: 800; list-style: none; }.faq-list summary::after { content: "+"; float: right; color: var(--primary); }.faq-list details[open] summary::after { content: "−"; }.faq-list details p { max-width: 720px; margin: -6px 0 22px; color: var(--muted); }.legal-copy { max-width: 820px; }.legal-copy h2 { margin-top: 42px; font-size: 25px; }.legal-copy h2:first-child { margin-top: 0; }.legal-copy p { color: var(--muted); }.error-page { display: grid; place-items: center; min-height: 100vh; text-align: center; background: var(--surface); }.error-page .lede { margin: 16px auto 28px; }.site-footer { padding: 54px 0 22px; color: #c9d7df; background: #122735; }.footer-grid { display: grid; grid-template-columns: 1.4fr .7fr .9fr; gap: 50px; }.footer-brand { color: white; }.footer-grid p { max-width: 300px; margin: 14px 0 0; color: #9db1bd; font-size: 13px; }.footer-grid a:not(.brand) { display: block; width: fit-content; margin-top: 9px; color: #c9d7df; text-decoration: none; font-size: 13px; }.footer-grid a:not(.brand):hover { color: white; }.footer-title { margin: 0 0 12px; color: white; font-size: 13px; letter-spacing: .04em; }.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 46px; padding-top: 18px; border-top: 1px solid rgba(201, 215, 223, .2); color: #829aa8; font-size: 12px; }
@media (max-width: 760px) { .container { width: min(100% - 28px, 620px); }.header-inner { min-height: 64px; }.menu-toggle { display: block; }.site-nav { position: absolute; top: 64px; left: 14px; right: 14px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 8px; border: 1px solid var(--line); border-radius: 10px; background: white; box-shadow: var(--shadow); }.site-nav.is-open { display: flex; }.site-nav a { padding: 11px 12px; }.hero { padding: 64px 0 72px; }.hero-grid, .split-heading, .two-col { grid-template-columns: 1fr; gap: 34px; }.hero-card { transform: none; }.hero-card-body { padding: 22px; }.three-cols, .workflow-grid, .content-grid, .steps-grid, .footer-grid { grid-template-columns: 1fr; }.section { padding: 64px 0; }.split-heading { margin-bottom: 28px; }.page-hero { padding: 60px 0 54px; }.download-card, .contact-placeholder { flex-direction: column; align-items: flex-start; }.placeholder-box { width: 100%; }.footer-bottom { flex-direction: column; gap: 6px; margin-top: 32px; } }
@media (min-width: 761px) and (max-width: 980px) { .container { width: min(100% - 44px, 860px); }.hero-grid { gap: 34px; }.workflow-grid, .steps-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

.pricing-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); }
.pricing-table { width: 100%; min-width: 780px; border-collapse: collapse; background: white; }
.pricing-table th, .pricing-table td { padding: 17px 18px; border-bottom: 1px solid var(--line); text-align: center; vertical-align: middle; font-size: 14px; }
.pricing-table thead th { color: white; background: var(--primary-dark); font-size: 15px; }
.pricing-table thead th:first-child { text-align: left; }
.pricing-table tbody th { min-width: 190px; color: var(--ink); background: #f7fafc; text-align: left; font-weight: 800; }
.pricing-table tbody tr:last-child th, .pricing-table tbody tr:last-child td { border-bottom: 0; }
.recommended-heading { background: var(--primary) !important; }
.recommended-heading span { color: #ffe2c5; font-size: 11px; }
.check { color: var(--primary); font-size: 20px; font-weight: 800; }
.pricing-notes { margin-top: 28px; }
.pricing-note-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 18px; }
.pricing-note-grid p { margin: 0; padding: 18px 20px; color: var(--muted); border: 1px solid var(--line); border-radius: 10px; background: var(--surface); font-size: 14px; }
.policy-card, .confirmation-box { margin-top: 28px; padding: 34px 38px; border: 1px solid var(--line); border-radius: 14px; background: white; box-shadow: var(--shadow); }
.policy-card h2, .confirmation-box h2 { margin-bottom: 22px; font-size: 30px; }
.policy-list { display: grid; gap: 14px; margin: 0; padding-left: 24px; color: var(--muted); }
.policy-list > li { padding-left: 6px; }
.policy-list ul { display: grid; gap: 8px; margin: 10px 0 0; padding-left: 20px; }
.policy-list strong { color: var(--ink); }
.confirmation-box { border-color: #f0bd8d; background: #fff8ee; }
.confirmation-box blockquote { margin: 0; padding: 18px 20px; border-left: 4px solid var(--accent); color: var(--ink); background: white; font-size: 16px; }
.confirmation-box > p:last-child { margin: 16px 0 0; color: var(--muted); font-size: 13px; }
.boundary-list { display: grid; gap: 5px; margin: 10px 0 16px; padding-left: 20px; color: #c9dce6; }
.boundary-list li::marker { color: var(--accent); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }
.workflow-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }

@media (max-width: 760px) {
  .pricing-note-grid { grid-template-columns: 1fr; }
  .policy-card, .confirmation-box { padding: 26px 22px; }
  .workflow-grid { grid-template-columns: 1fr; }
}

@media (min-width: 761px) and (max-width: 980px) {
  .workflow-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* R5: mobile pricing cards keep every package and feature value readable without horizontal scrolling. */
.pricing-mobile-cards { display: none; }

.mobile-plan-card {
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: white;
  box-shadow: var(--shadow);
}

.mobile-plan-featured { border: 2px solid var(--primary); }

.mobile-plan-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

.mobile-plan-heading h2 {
  margin: 6px 0 0;
  font-size: 30px;
}

.plan-tag {
  flex: 0 0 auto;
  padding: 5px 8px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}

.mobile-plan-card dl { margin: 0; }

.mobile-plan-card dl > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, auto);
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.mobile-plan-card dt {
  color: var(--muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.mobile-plan-card dd {
  max-width: 180px;
  margin: 0;
  color: var(--ink);
  text-align: right;
  font-size: 13px;
  font-weight: 700;
  overflow-wrap: anywhere;
}

@media (max-width: 820px) {
  .pricing-table-wrap { display: none; }
  .pricing-mobile-cards { display: grid; gap: 18px; }
  .mobile-plan-card dd { max-width: 155px; }
}