:root {
  color: #17251f;
  background: #f5f7f5;
  font-family: "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --ink: #17251f;
  --muted: #5f6d66;
  --green: #126b4c;
  --green-dark: #0c5139;
  --green-soft: #e5efe9;
  --paper: #f5f7f5;
  --line: #d8e0da;
  --warm: #a65d20;
  --white: #fff;
}

* { box-sizing: border-box; }
html { max-width: 100%; overflow-x: clip; scroll-behavior: smooth; }
body { max-width: 100%; margin: 0; overflow-x: clip; color: var(--ink); }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible { outline: 3px solid #bb6929; outline-offset: 4px; }

.site-nav {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 max(24px, calc((100% - 1240px) / 2));
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.wordmark { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.wordmark span { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 5px; color: var(--white); background: var(--green); font-size: 16px; font-weight: 800; }
.wordmark strong { font-size: 17px; }
.site-nav nav { display: flex; align-items: center; gap: 30px; color: var(--muted); font-size: 14px; }
.site-nav nav a { transition: color 160ms ease; }
.site-nav nav a:hover { color: var(--green); }
.nav-download { min-height: 40px; display: inline-flex; align-items: center; justify-content: center; padding: 0 15px; border: 1px solid #a8c5b6; border-radius: 5px; color: var(--green-dark); font-size: 14px; font-weight: 700; transition: color 160ms ease, background 160ms ease, border-color 160ms ease; }
.nav-download:hover { border-color: var(--green); color: var(--white); background: var(--green); }

.hero { min-height: calc(100svh - 70px); display: flex; align-items: center; padding: 48px 24px; background: #f0f5f1; }
.hero-inner { width: min(1240px, 100%); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 48px; align-items: center; margin: 0 auto; }
.hero-copy { min-width: 0; max-width: 600px; margin: 0; }
.eyebrow { margin: 0 0 17px; color: var(--green); font-size: 14px; font-weight: 800; }
.eyebrow span { padding: 0 7px; color: #b7783d; }
.hero h1 { max-width: 600px; margin: 0; font-size: 46px; line-height: 1.2; font-weight: 800; }
.hero-offer { max-width: 550px; margin: 18px 0 0; color: #52625a; font-size: 17px; line-height: 1.72; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; margin-top: 24px; }
.primary { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--green); border-radius: 5px; padding: 0 20px; color: var(--white); background: var(--green); font-size: 15px; font-weight: 700; transition: transform 140ms ease, background 160ms ease, border-color 160ms ease; }
.primary:hover { border-color: var(--green-dark); background: var(--green-dark); }
.primary:active { transform: scale(.98); }
.text-link { min-height: 44px; display: inline-flex; align-items: center; gap: 9px; color: var(--green-dark); font-size: 15px; font-weight: 700; }
.text-link span { color: var(--warm); font-size: 18px; transition: transform 160ms ease; }
.text-link:hover span { transform: translateY(3px); }
.hero-flow { display: flex; flex-wrap: wrap; gap: 10px 24px; margin: 20px 0 0; padding: 0; color: #52625a; font-size: 14px; list-style: none; }
.hero-flow li { display: inline-flex; align-items: center; gap: 8px; }
.hero-flow span { color: var(--warm); font-size: 12px; font-weight: 800; }
.hero-media { min-width: 0; margin: 0; padding: 10px 10px 0; border: 1px solid #d5dfd8; border-radius: 7px; background: var(--white); box-shadow: 0 18px 42px rgb(22 48 35 / 8%); }
.hero-media img { display: block; width: 100%; height: auto; border: 1px solid #e0e6e2; border-radius: 4px 4px 0 0; }
.hero-media figcaption { min-height: 42px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 0 9px; color: #68766e; font-size: 13px; }

.video-band { min-height: calc(100svh - 70px); align-items: center; padding: 76px 24px; color: #f1f6f2; background: #172820; }
.video-band[hidden] { display: none; }
.video-band:not([hidden]) { display: flex; }
.section-inner { width: min(1180px, 100%); margin: 0 auto; }
.video-layout { display: grid; grid-template-columns: minmax(260px, .58fr) minmax(0, 1.42fr); gap: 64px; align-items: center; }
.video-heading > p { margin: 0 0 14px; color: #d6a365; font-size: 13px; font-weight: 800; }
.video-heading h2 { margin: 0; font-size: 34px; line-height: 1.32; }
.video-heading span { display: block; margin-top: 18px; color: #c0cec5; font-size: 16px; line-height: 1.75; }
.video-layout video { display: block; width: 100%; aspect-ratio: 16 / 9; border: 1px solid #486052; background: #0c1711; object-fit: contain; }

.workflow-band { padding: 92px 24px 86px; background: #fff; }
.classic-section-title { max-width: 930px; }
.classic-section-title h2 { margin: 0; font-size: 48px; line-height: 1.32; }
.classic-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 62px 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.classic-steps li { min-width: 0; padding: 30px 34px 34px 0; }
.classic-steps li + li { padding-left: 34px; border-left: 1px solid var(--line); }
.classic-steps span { color: #a86100; font-size: 14px; font-weight: 800; }
.classic-steps h3 { margin: 31px 0 15px; font-size: 20px; line-height: 1.45; }
.classic-steps p { margin: 0; color: #68766e; font-size: 15px; line-height: 1.8; }

.workflow-section { padding: 76px 24px 54px; color: var(--ink); background: #f4f0e8; border-top: 1px solid #e4ddd2; border-bottom: 1px solid #e4ddd2; }
.workflow-heading { max-width: 760px; }
.workflow-heading .eyebrow { color: var(--green); }
.workflow-heading h2 { margin: 0; font-size: 36px; line-height: 1.3; }
.workflow-heading > p:last-child { margin: 14px 0 0; color: #5f6d66; font-size: 16px; line-height: 1.7; }
.story-states { display: flex; align-items: center; gap: 32px; margin: 30px 0 16px; padding: 0; list-style: none; }
.story-state { display: inline-flex; align-items: center; gap: 9px; color: #5f6d66; font-size: 14px; transition: color 180ms ease; }
.story-state span { width: 28px; height: 28px; display: grid; place-items: center; border: 1px solid #718f7e; border-radius: 50%; color: #274d3c; background: #fff; font-size: 12px; font-weight: 700; transition: color 180ms ease, background 180ms ease, border-color 180ms ease; }
.story-state.is-active { color: var(--ink); font-weight: 700; }
.story-state.is-active span { border-color: var(--green); color: #fff; background: var(--green); }
.story-stage { display: grid; grid-template-columns: minmax(0, 1fr) 60px minmax(0, 1fr); align-items: center; gap: 18px; min-height: 344px; }
.story-panel { min-width: 0; min-height: 300px; padding: 22px 23px; border: 1px solid #d2ddd5; border-radius: 6px; color: var(--ink); background: #fff; box-shadow: 0 10px 26px rgb(48 61 52 / 7%); }
.story-source { background: #f9fbf9; }
.story-result { border-top: 4px solid #c5803e; background: #fff; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 17px; border-bottom: 1px solid #dce4de; color: #1f3028; font-size: 15px; font-weight: 800; }
.panel-mark { padding: 5px 8px; border-radius: 3px; color: #17573f; background: #dcebe3; font-size: 12px; font-weight: 700; white-space: nowrap; }
.panel-mark-warm { color: #75451f; background: #f3e4d5; }
.message-list { display: grid; gap: 10px; padding-top: 18px; }
.message-list article { padding: 11px 13px; background: #fff; }
.message-list article:nth-child(2) { margin-left: 22px; background: #f8f1e8; }
.message-list article span { color: #48564e; font-size: 12px; }
.message-list article p { margin: 6px 0 0; color: #26372f; font-size: 14px; line-height: 1.65; }
.story-connector { width: 100%; height: 2px; background: #9fb4a7; }
.story-thread { width: 100%; height: 100%; display: block; background: #c5803e; transform: scaleX(0); transform-origin: left center; }
.story-result h3 { margin: 19px 0 14px; font-size: 22px; line-height: 1.35; }
.record-fields { display: grid; gap: 12px; margin: 0; }
.record-fields div { display: grid; grid-template-columns: 86px minmax(0, 1fr); gap: 12px; padding-bottom: 10px; border-bottom: 1px solid #e7ebe8; }
.record-fields dt { color: #5d6b63; font-size: 13px; }
.record-fields dd { margin: 0; color: #293a32; font-size: 14px; line-height: 1.5; }
.source-note { margin: 15px 0 0; color: #59675f; font-size: 13px; line-height: 1.55; }
.story-caption { margin: 11px 0 0; color: #56635c; font-size: 12px; }
.skip-story { display: inline-flex; margin-top: 20px; color: var(--green-dark); font-size: 13px; text-decoration: underline; text-underline-offset: 4px; }

.privacy-band { padding: 86px 24px; color: #f4f7f5; background: #172820; }
.privacy-layout { display: grid; grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); gap: 96px; align-items: start; }
.privacy-layout .eyebrow { color: #8ed0ad; }
.privacy-layout h2, .pricing-copy h2 { margin: 0; font-size: 42px; line-height: 1.3; }
.privacy-layout > p { margin: 0; padding-top: 3px; color: #d1ddd5; font-size: 16px; line-height: 1.9; }
.pricing-copy > p:last-child { margin: 20px 0 0; color: #5f6e66; font-size: 16px; line-height: 1.8; }

.pricing-section { padding: 88px 24px; background: #eef3ef; }
.pricing-layout { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(340px, .8fr); gap: 100px; align-items: center; }
.pricing-copy { max-width: 680px; }
.pricing-copy h2 { max-width: 620px; }
.price-panel { padding: 28px 30px 30px; border-top: 3px solid #bd793b; background: #fff; }
.price-panel > p { margin: 0 0 12px; color: var(--green); font-size: 14px; font-weight: 800; }
.price-panel strong { display: block; margin: 0 0 19px; color: var(--ink); font-size: 54px; line-height: 1.1; }
.price-panel strong small { margin-right: 4px; font-size: 20px; }
.price-panel ul { margin: 0 0 24px; padding: 16px 0 0; border-top: 1px solid var(--line); list-style: none; }
.price-panel li { padding: 7px 0; color: #5f6e66; font-size: 14px; line-height: 1.5; }
.price-panel li::before { content: "✓"; margin-right: 9px; color: var(--green); font-weight: 800; }
.price-panel .primary { width: 100%; }

footer { min-height: 94px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px max(24px, calc((100% - 1180px) / 2)); color: #68766e; background: #fff; font-size: 13px; }
footer strong { color: var(--ink); font-size: 14px; }
footer a { color: var(--green); font-weight: 700; }

@media (max-width: 1100px) {
  .hero-inner { gap: 34px; }
  .hero h1 { font-size: 40px; }
}

@media (max-width: 860px) {
  .site-nav { padding: 0 20px; }
  .site-nav nav { gap: 17px; }
  .hero { min-height: 0; padding: 42px 20px; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-copy, .hero h1, .hero-offer { max-width: 680px; }
  .hero h1 { font-size: 42px; }
  .hero-offer { font-size: 16px; }
  .story-stage { grid-template-columns: minmax(0, 1fr) 48px minmax(0, 1fr); gap: 12px; }
  .story-panel { padding: 20px 18px; }
  .message-list article:nth-child(2) { margin-left: 10px; }
  .record-fields div { grid-template-columns: 72px minmax(0, 1fr); gap: 8px; }
  .classic-section-title h2 { font-size: 42px; }
  .privacy-layout { gap: 52px; }
  .pricing-layout { gap: 56px; }
}

@media (max-width: 760px) {
  .hero { min-height: 0; }
  .hero-inner { grid-template-columns: 1fr; gap: 30px; }
  .hero-copy, .hero h1, .hero-offer { max-width: 650px; }
}

@media (max-width: 620px) {
  .site-nav { min-height: 62px; gap: 12px; padding: 0 15px; }
  .wordmark { gap: 8px; }
  .wordmark span { width: 32px; height: 32px; }
  .wordmark strong { font-size: 15px; }
  .site-nav nav { display: none; }
  .nav-download { min-height: 38px; padding: 0 11px; font-size: 13px; }
  .hero { min-height: 0; padding: 35px 16px 27px; }
  .hero-inner { grid-template-columns: 1fr; gap: 25px; }
  .hero-copy { margin-bottom: 0; }
  .eyebrow { margin-bottom: 13px; font-size: 13px; }
  .hero h1 { font-size: 39px; line-height: 1.3; }
  .hero h1 br { display: none; }
  .hero-offer { margin-top: 15px; font-size: 16px; line-height: 1.7; }
  .hero-actions { gap: 14px; margin-top: 19px; }
  .primary { min-height: 46px; padding: 0 15px; font-size: 14px; }
  .text-link { min-height: 42px; font-size: 14px; }
  .hero-flow { gap: 8px 16px; margin-top: 16px; font-size: 12px; }
  .hero-flow li { gap: 6px; }
  .hero-media { padding: 6px 6px 0; }
  .hero-media figcaption { min-height: 38px; gap: 8px; padding: 0 4px; font-size: 11px; }
  .hero-media figcaption span:last-child { text-align: right; }
  .video-band { min-height: 0; padding: 52px 18px; }
  .video-layout { grid-template-columns: 1fr; gap: 26px; }
  .video-heading h2 { font-size: 29px; }
  .workflow-band { padding: 64px 18px 58px; }
  .classic-section-title h2 { font-size: 34px; }
  .classic-steps { grid-template-columns: 1fr; margin-top: 38px; }
  .classic-steps li { padding: 23px 0 26px; }
  .classic-steps li + li { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .classic-steps h3 { margin: 18px 0 10px; font-size: 19px; }
  .classic-steps p { font-size: 14px; }
  .workflow-section { padding: 56px 18px 42px; }
  .workflow-heading h2 { font-size: 30px; }
  .workflow-heading > p:last-child { font-size: 16px; }
  .story-states { justify-content: space-between; gap: 10px; margin: 31px 0 14px; }
  .story-state { gap: 6px; font-size: 12px; }
  .story-state span { width: 25px; height: 25px; font-size: 11px; }
  .story-stage { grid-template-columns: minmax(0, 1fr); gap: 12px; min-height: 0; }
  .story-panel { min-height: 0; padding: 17px 16px; }
  .story-source { min-height: 214px; }
  .story-result { min-height: 236px; }
  .panel-heading { padding-bottom: 12px; font-size: 14px; }
  .panel-mark { font-size: 11px; }
  .message-list { gap: 7px; padding-top: 12px; }
  .message-list article { padding: 8px 10px; }
  .message-list article p { margin-top: 4px; font-size: 13px; }
  .story-connector { width: 2px; height: 26px; justify-self: center; }
  .story-thread { transform: scaleY(0); transform-origin: center top; }
  .story-result h3 { margin: 14px 0 11px; font-size: 20px; }
  .record-fields { gap: 9px; }
  .record-fields div { grid-template-columns: 74px minmax(0, 1fr); padding-bottom: 8px; }
  .record-fields dt, .record-fields dd { font-size: 13px; }
  .source-note { margin-top: 11px; font-size: 12px; }
  .story-caption { max-width: 360px; line-height: 1.6; }
  .privacy-band { padding: 62px 18px; }
  .privacy-layout, .pricing-layout { grid-template-columns: 1fr; gap: 36px; }
  .privacy-layout h2, .pricing-copy h2 { font-size: 34px; }
  .privacy-layout > p { font-size: 15px; line-height: 1.85; }
  .pricing-copy > p:last-child { margin-top: 15px; font-size: 15px; }
  .pricing-section { padding: 64px 18px; }
  .price-panel { padding: 23px 20px 22px; }
  .price-panel strong { font-size: 48px; }
  footer { min-height: 106px; align-items: flex-start; flex-direction: column; justify-content: center; gap: 8px; padding: 18px; }
}

@media (max-width: 360px) {
  .hero h1 { font-size: 35px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 7px; }
  .story-state { flex-direction: column; align-items: flex-start; gap: 5px; }
  .hero-media figcaption { align-items: flex-start; flex-direction: column; justify-content: center; gap: 2px; padding: 6px 4px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}