:root {
  --ink: #112033;
  --ink-soft: #213348;
  --paper: #fffdf7;
  --canvas: #f2efe7;
  --line: #d9d4c8;
  --muted: #68716d;
  --coral: #ec765b;
  --coral-dark: #bc4634;
  --mint: #c7ecd9;
  --mint-dark: #0f735a;
  --amber: #f5bd57;
  --blue: #4667a9;
  --shadow: 0 20px 48px rgba(17, 32, 51, 0.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

a { color: inherit; }

button, input { font: inherit; }

button { cursor: pointer; }

.section-shell {
  width: min(1160px, calc(100% - 56px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 68px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 12px max(28px, calc((100% - 1160px) / 2));
  background: rgba(255, 253, 247, 0.95);
  border-bottom: 1px solid rgba(217, 212, 200, 0.88);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  width: max-content;
  color: var(--ink);
  font-size: 18px;
  font-weight: 780;
  letter-spacing: 0;
  text-decoration: none;
}

.wordmark-mark {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 5px;
  background: var(--ink);
  color: var(--paper);
  font-family: Georgia, serif;
  font-size: 18px;
  font-weight: 700;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 25px;
}

.site-nav a {
  color: #55616b;
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover { color: var(--ink); }

.site-header > .button { justify-self: end; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 17px;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 760;
  line-height: 1;
  text-decoration: none;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.button:hover { transform: translateY(-1px); }
.button:focus-visible, .text-link:focus-visible, .site-nav a:focus-visible, details summary:focus-visible, input:focus-visible { outline: 3px solid rgba(70, 103, 169, 0.42); outline-offset: 3px; }
.button-dark { background: var(--ink); color: var(--paper); }
.button-dark:hover { background: #23364c; }
.button-coral { background: var(--coral); color: #261c18; }
.button-coral:hover { background: #f48c73; }
.hero .button-outline {
  border-color: rgba(255, 255, 255, .55);
  background: transparent;
  color: var(--paper);
}
.hero .button-outline:hover { border-color: rgba(255, 255, 255, .82); background: rgba(255, 255, 255, .11); }
.button-small { min-height: 36px; padding: 0 13px; font-size: 12px; }
.button-large { min-height: 52px; padding: 0 20px; }

.hero {
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
}

.hero-inner {
  width: min(980px, calc(100% - 56px));
  margin: 0 auto;
  padding: 96px 0 74px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: #7b827b;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.5px;
  line-height: 1.2;
}

.eyebrow-light { color: #b4c5d3; }

h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 900px;
  margin: 0 auto;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 64px;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.02;
}

.hero-copy {
  max-width: 610px;
  margin: 27px auto 0;
  color: #c8d3dc;
  font-size: 19px;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 31px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
}

.text-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.text-link-light { color: #e1e7e7; }
.text-link-dark { color: var(--ink); }

.hero-note {
  margin: 20px 0 0;
  color: #9fb1c0;
  font-size: 12px;
}

.hero-rule { height: 1px; background: #3a4c60; }

.hero-foot {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  width: min(1160px, calc(100% - 56px));
  margin: 0 auto;
  padding: 16px 0 18px;
  color: #a2b3be;
  font-size: 10px;
  font-weight: 780;
  letter-spacing: 1.25px;
}

.proof-visual { background: var(--canvas); padding-bottom: 78px; }

.browser-frame {
  position: relative;
  top: 0;
  overflow: hidden;
  border: 1px solid #b8c2c4;
  border-radius: 8px;
  background: #fbfaf6;
  box-shadow: var(--shadow);
}

.browser-bar {
  min-height: 46px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 17px;
  border-bottom: 1px solid #d4d7d2;
  background: #e9ece8;
}

.browser-dots { display: flex; gap: 5px; }
.browser-dots i { display: block; width: 9px; height: 9px; border-radius: 50%; background: #a7b0ac; }
.browser-dots i:nth-child(1) { background: var(--coral); }
.browser-dots i:nth-child(2) { background: var(--amber); }
.browser-dots i:nth-child(3) { background: var(--mint-dark); }
.browser-title { color: #606b70; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; }
.browser-status { display: inline-flex; align-items: center; gap: 6px; margin-left: auto; color: var(--mint-dark); font-size: 10px; font-weight: 800; letter-spacing: .8px; }
.browser-status i { width: 7px; height: 7px; border-radius: 50%; background: var(--mint-dark); }

.case-window { display: grid; grid-template-columns: minmax(0, 1.48fr) minmax(290px, .72fr); }

.case-document { min-width: 0; min-height: 390px; padding: 43px 48px 28px; background: #fffefb; overflow-wrap: anywhere; }
.document-kicker { color: #7c837d; font-size: 10px; font-weight: 800; letter-spacing: 1.1px; }
.case-document h2 { max-width: 610px; margin: 18px 0 8px; font-family: Georgia, serif; font-size: 34px; font-weight: 500; line-height: 1.12; }
.document-meta { margin-bottom: 20px; color: #737e86; font-size: 12px; line-height: 1.45; overflow-wrap: anywhere; }
.document-rule { width: 42px; height: 3px; margin-bottom: 21px; background: var(--coral); }
.case-document p { max-width: 675px; margin-bottom: 15px; color: #37424b; font-family: Georgia, serif; font-size: 16px; line-height: 1.58; }
.case-document .highlight-copy { border-left: 3px solid var(--mint-dark); padding-left: 15px; color: #183b36; }
.document-footer { display: flex; flex-wrap: wrap; gap: 11px 19px; margin-top: 22px; color: #697570; font-size: 11px; font-weight: 700; }

.quality-panel { min-width: 0; padding: 33px 29px; background: #e6f2ed; border-left: 1px solid #c8d8d1; }
.quality-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding-bottom: 22px; border-bottom: 1px solid #bfd2c8; }
.quality-score { color: var(--mint-dark); font-size: 32px; font-weight: 800; line-height: 1; }
.quality-score small { color: #557369; font-size: 11px; font-weight: 700; }
.quality-pending { color: #8a6416; font-size: 10px; font-weight: 800; letter-spacing: .8px; }
.quality-line { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 6px 10px; margin-top: 20px; color: #38594d; font-size: 12px; font-weight: 700; }
.quality-line i { grid-column: 1 / -1; display: block; height: 6px; overflow: hidden; border-radius: 99px; background: #bfd3c9; }
.quality-line em { display: block; height: 100%; border-radius: inherit; background: var(--mint-dark); }
.quality-flag { display: flex; gap: 9px; margin-top: 25px; padding: 13px; border: 1px solid #dfb471; border-radius: 6px; background: #fff7e9; color: #69491b; }
.quality-panel > .quality-flag:first-child { margin-top: 0; margin-bottom: 22px; }
.document-disclaimer { margin: 14px 0 0; padding-top: 12px; border-top: 1px solid #e3ded4; color: #7c837d; font-family: Georgia, serif; font-size: 12px; font-style: italic; }
.quality-flag span { display: grid; place-items: center; flex: 0 0 17px; width: 17px; height: 17px; border-radius: 50%; background: #e1a544; color: #fffdf7; font-size: 11px; font-weight: 800; }
.quality-flag p { margin: 0; font-size: 11px; line-height: 1.45; }
.quality-flag-list { margin-top: 22px; }
.quality-flag-list b { display: block; margin-bottom: 7px; font-size: 10px; letter-spacing: .9px; }
.quality-flag-list p + p { margin-top: 7px; }
.quality-source { display: flex; align-items: center; gap: 10px; margin-top: 24px; color: #446458; font-size: 11px; }
.quality-source small { color: #648076; }
.source-check { display: grid; place-items: center; width: 25px; height: 25px; border-radius: 50%; background: var(--mint-dark); color: #fff; font-size: 13px; font-weight: 900; }
.visual-caption { max-width: 480px; margin: 18px auto 0; color: #65706f; font-family: Georgia, serif; font-size: 16px; text-align: center; }

.pain-section { padding: 98px 0; background: #faf7f0; border-top: 1px solid #e7e1d4; }
.pain-grid { display: grid; grid-template-columns: minmax(260px, .85fr) minmax(0, 1.15fr); gap: 100px; }
.pain-grid h2, .section-intro h2 { margin-bottom: 0; font-family: Georgia, serif; font-size: 45px; font-weight: 500; line-height: 1.1; }
.pain-list { border-top: 1px solid #cfc9bc; }
.pain-row { display: grid; grid-template-columns: 42px 1fr; gap: 17px; padding: 26px 0; border-bottom: 1px solid #d6d0c4; }
.pain-number, .step-number { color: var(--coral-dark); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; font-weight: 800; }
.pain-row h3, .step h3, .feature-card h3 { margin: 0 0 7px; font-size: 18px; line-height: 1.25; }
.pain-row p { max-width: 620px; margin: 0; color: var(--muted); font-size: 15px; }

.mechanism-section { padding: 102px 0 92px; background: var(--paper); }
.section-intro { max-width: 530px; }
.section-intro-wide { max-width: 710px; }
.section-intro > p:not(.eyebrow) { margin: 20px 0 0; color: var(--muted); font-size: 17px; }
.steps-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin-top: 54px; border-top: 1px solid #c9c6bd; border-bottom: 1px solid #c9c6bd; }
.step { min-height: 250px; padding: 28px 25px 25px 0; border-right: 1px solid #d6d1c6; }
.step + .step { padding-left: 25px; }
.step:last-child { border-right: 0; }
.step h3 { margin-top: 58px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }
.step-closing { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 0; color: #53616a; font-family: Georgia, serif; font-size: 20px; }
.step-closing strong { color: var(--ink); font-weight: 600; }

/* ---- 时间账（workflow 区） ---- */
.time-math { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; max-width: 860px; margin: 34px auto 0; padding: 24px 28px; border: 1px solid #d8d2c4; border-radius: 8px; background: var(--paper); }
.time-math h4 { margin: 0 0 8px; font-size: 13px; letter-spacing: .6px; color: var(--coral-dark); }
.time-math-col:last-child h4 { color: var(--mint-dark); }
.time-math p { margin: 0; color: #55616b; font-size: 14px; line-height: 1.65; }
@media (max-width: 640px) { .time-math { grid-template-columns: 1fr; } }

.feature-section { padding: 98px 0 106px; background: var(--ink); color: var(--paper); }
.section-intro-light h2 { color: var(--paper); }
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 47px; }
.feature-card { min-height: 274px; padding: 23px; border: 1px solid transparent; border-radius: 7px; color: var(--ink); }
.feature-card-coral { background: #ee987f; }
.feature-card-mint { background: #bbdfd0; }
.feature-card-paper { background: #f3eddf; }
.feature-card-amber { background: #edb653; }
.feature-icon { display: inline-grid; place-items: center; width: 32px; height: 32px; margin-bottom: 53px; border: 1px solid rgba(17, 32, 51, .38); border-radius: 50%; font-size: 11px; font-weight: 800; }
.feature-card h3 { font-size: 20px; }
.feature-card p { margin: 0; color: rgba(17, 32, 51, .78); font-size: 14px; }

.example-section { padding: 104px 0; background: #e8e4d9; }
.example-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(350px, .82fr); gap: 130px; align-items: center; }
.example-notes { border-top: 1px solid #c4c1b8; }
.note-line { display: grid; grid-template-columns: 15px 1fr; gap: 14px; padding: 22px 0; border-bottom: 1px solid #cbc7bd; }
.note-dot { display: block; width: 11px; height: 11px; margin-top: 5px; border-radius: 50%; }
.note-dot-coral { background: var(--coral); }
.note-dot-mint { background: var(--mint-dark); }
.note-dot-amber { background: #cc8a20; }
.note-line b { font-size: 15px; }
.note-line p { margin: 3px 0 0; color: var(--muted); font-size: 14px; }

.reserve-section { padding: 92px 0; background: var(--amber); }
.reserve-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .85fr); gap: 95px; align-items: center; }
.reserve-copy h2 { max-width: 580px; margin: 0; font-family: Georgia, serif; font-size: 49px; font-weight: 500; line-height: 1.08; }
.reserve-copy > p:not(.eyebrow) { max-width: 550px; margin: 21px 0 0; color: #564527; font-size: 17px; }
.reserve-copy .refund-note { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; font-weight: 700; }
.refund-note span { display: grid; place-items: center; flex: 0 0 18px; width: 18px; height: 18px; margin-top: 2px; border-radius: 50%; background: #315e4e; color: #fbf3e2; font-size: 11px; }
.reserve-actions { padding-left: 3px; }
.reserve-helper { margin: 11px 0 25px; color: #66532e; font-size: 12px; }
.reserve-byline { margin: 24px 0 0; color: #66532e; font-size: 12px; }
.reserve-byline a { color: #3d2f14; text-decoration: underline; text-underline-offset: 3px; }
.email-form { max-width: 440px; }
.email-form label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 760; }
.email-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
.email-row input { min-width: 0; height: 44px; padding: 0 12px; border: 1px solid rgba(17, 32, 51, .45); border-radius: 6px; background: #fffaf0; color: var(--ink); }
.email-row input::placeholder { color: #8b805f; }
.honey-field { position: absolute; left: -10000px; width: 1px; height: 1px; opacity: 0; }
.form-message { min-height: 19px; margin: 9px 0 0; color: #345849; font-size: 12px; font-weight: 650; }
.form-message.error { color: #8f3123; }

.faq-section { padding: 108px 0; background: #f8f6f0; }
.faq-grid { display: grid; grid-template-columns: minmax(260px, .7fr) minmax(0, 1.3fr); gap: 120px; }
.faq-list { border-top: 1px solid #c8c4b9; }
details { border-bottom: 1px solid #d2cdc2; }
details summary { position: relative; padding: 20px 31px 20px 0; color: var(--ink); cursor: pointer; font-size: 16px; font-weight: 720; list-style: none; }
details summary::-webkit-details-marker { display: none; }
details summary::after { position: absolute; top: 17px; right: 1px; color: var(--coral-dark); content: "+"; font-size: 25px; font-weight: 400; line-height: 1; }
details[open] summary::after { content: "-"; }
details p { max-width: 720px; margin: -2px 0 21px; color: var(--muted); font-size: 14px; }

/* ---- FAQ 轮播 ---- */
.faq-carousel { margin-bottom: 26px; border: 1px solid #d8d2c4; border-radius: 8px; background: var(--paper); overflow: hidden; }
.faq-slides { position: relative; min-height: 168px; }
.faq-slide { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; padding: 22px 26px; opacity: 0; transform: translateY(8px); transition: opacity 260ms ease, transform 260ms ease; pointer-events: none; }
.faq-slide.active { position: relative; opacity: 1; transform: translateY(0); pointer-events: auto; }
.faq-slide-tag { align-self: flex-start; margin-bottom: 9px; padding: 3px 8px; border-radius: 4px; background: var(--mint); color: var(--mint-dark); font-size: 10px; font-weight: 800; letter-spacing: .6px; }
.faq-slide h3 { margin: 0 0 8px; font-size: 19px; line-height: 1.25; cursor: pointer; }
.faq-slide h3::after { content: " \2197"; color: var(--coral-dark); font-size: 13px; }
.faq-slide p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
.faq-dots { display: flex; justify-content: center; gap: 7px; padding: 0 0 16px; }
.faq-dot { width: 8px; height: 8px; padding: 0; border: 0; border-radius: 50%; background: #cfc9bc; cursor: pointer; transition: background-color 150ms ease; }
.faq-dot.active { background: var(--coral-dark); }
.faq-carousel-cta { display: block; width: 100%; padding: 11px; border: 0; border-top: 1px solid #ece7db; background: #faf7f0; color: var(--ink); font-size: 13px; font-weight: 750; cursor: pointer; }
.faq-carousel-cta:hover { background: #f3eee2; }

.site-footer { padding: 43px 0; background: #0c1827; color: #d8dfdf; }
.footer-grid { display: grid; grid-template-columns: 1fr minmax(320px, 1.25fr) auto; gap: 50px; align-items: end; }
.wordmark-footer { color: #fffaf0; }
.wordmark-footer .wordmark-mark { background: var(--coral); color: var(--ink); }
.site-footer p { margin: 12px 0 0; color: #99a9b3; font-size: 12px; }
.footer-meta p { max-width: 490px; margin: 0 0 6px; }
.back-top { color: #f5bd57; font-size: 12px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.back-top:hover { text-decoration: underline; text-underline-offset: 4px; }

.toast { position: fixed; right: 24px; bottom: 24px; z-index: 20; max-width: min(390px, calc(100vw - 48px)); padding: 12px 14px; border-radius: 6px; background: var(--ink); box-shadow: 0 10px 24px rgba(17, 32, 51, .24); color: #fff; font-size: 13px; opacity: 0; pointer-events: none; transform: translateY(10px); transition: opacity 180ms ease, transform 180ms ease; }
.toast.show { opacity: 1; transform: translateY(0); }

/* ---- 演示区：双案例切换 ---- */
.demo-tabs {
  position: static;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.demo-tab {
  min-height: 36px;
  padding: 0 15px;
  border: 1px solid #b8c2c4;
  border-radius: 99px;
  background: #fbfaf6;
  color: #55616b;
  font-size: 13px;
  font-weight: 700;
  transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease;
}

.demo-tab:hover { border-color: var(--mint-dark); color: var(--ink); }
.demo-tab.active { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.demo-tab-note { margin-left: 6px; color: #6b7673; font-size: 12px; }

/* 无 JS 时默认显示第一个案例；JS 切换 .active */
.case-panel { display: none; }
.case-panel.active { display: block; }

/* ---- 性能：首屏以下区块延迟渲染 ---- */
.pain-section, .mechanism-section, .feature-section, .example-section, .reserve-section, .faq-section, .site-footer {
  content-visibility: auto;
  contain-intrinsic-size: auto 700px;
}

@media (max-width: 940px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-nav { display: none; }
  h1 { font-size: 54px; }
  .case-window { grid-template-columns: 1fr; }
  .quality-panel { border-top: 1px solid #c8d8d1; border-left: 0; }
  .quality-heading { padding-bottom: 15px; }
  .pain-grid, .example-grid, .reserve-grid, .faq-grid { gap: 58px; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-card { min-height: 225px; }
  .feature-icon { margin-bottom: 32px; }
}

@media (max-width: 720px) {
  .section-shell, .hero-inner, .hero-foot { width: min(100% - 32px, 620px); }
  .site-header { min-height: 60px; padding: 10px 16px; }
  .wordmark { font-size: 16px; }
  .wordmark-mark { width: 26px; height: 26px; }
  .site-header .button { min-height: 36px; padding: 0 10px; font-size: 11px; }
  .hero-inner { padding: 72px 0 60px; text-align: left; }
  h1 { font-size: 45px; }
  .hero-copy { margin-left: 0; font-size: 17px; }
  .hero-actions { justify-content: flex-start; gap: 17px; }
  .hero-note { max-width: 300px; }
  .hero-foot { justify-content: flex-start; flex-wrap: wrap; padding: 13px 0; }
  .proof-visual { padding-top: 22px; padding-bottom: 52px; }
  .browser-frame { top: 0; }
  .demo-tabs { gap: 6px; margin-bottom: 14px; }
  .demo-tab { min-height: 32px; padding: 0 12px; font-size: 12px; }
  .demo-tab-note { width: 100%; margin: 2px 0 0; font-size: 11px; }
  .browser-bar { padding: 0 12px; }
  .browser-title { display: none; }
  .browser-status { font-size: 9px; }
  .case-document { min-height: auto; padding: 31px 23px 23px; }
  .case-document h2 { font-size: 29px; }
  .case-document p { font-size: 15px; }
  .quality-panel { padding: 26px 23px; }
  .visual-caption { margin-top: 15px; font-size: 15px; }
  .pain-section, .mechanism-section, .feature-section, .example-section, .reserve-section, .faq-section { padding: 72px 0; }
  .pain-grid, .example-grid, .reserve-grid, .faq-grid { grid-template-columns: 1fr; gap: 38px; }
  .pain-grid h2, .section-intro h2, .reserve-copy h2 { font-size: 38px; }
  .steps-grid { grid-template-columns: 1fr 1fr; margin-top: 38px; }
  .step { min-height: 210px; padding: 22px 17px 22px 0; border-bottom: 1px solid #d6d1c6; }
  .step:nth-child(2n) { padding-left: 17px; border-right: 0; }
  .step:nth-child(3), .step:nth-child(4) { border-bottom: 0; }
  .step h3 { margin-top: 38px; font-size: 16px; }
  .step p { font-size: 13px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 0; }
  .feature-icon { margin-bottom: 25px; }
  .example-grid { align-items: start; }
  .reserve-actions { padding-left: 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 23px; align-items: start; }
  .back-top { width: max-content; }
}

@media (max-width: 430px) {
  .site-header .button span { display: none; }
  h1 { font-size: 39px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .browser-status { margin-left: 0; }
  .steps-grid { grid-template-columns: 1fr; }
  .step, .step + .step, .step:nth-child(2n) { min-height: 0; padding: 22px 0; border-right: 0; border-bottom: 1px solid #d6d1c6; }
  .step:last-child { border-bottom: 0; }
  .step h3 { margin-top: 24px; }
  .email-row { grid-template-columns: 1fr; }
  .email-row .button { width: 100%; }
}