:root {
  --paper: #fbfaf6;
  --ink: #171714;
  --muted: #696861;
  --line: #d9d7cf;
  --orange: #ff5c35;
  --yellow: #ffd447;
  --lime: #d9f45d;
  --dark: #1b1b18;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  letter-spacing: 0;
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }

.site-header {
  width: min(1440px, calc(100% - 48px));
  height: 76px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 10px; width: max-content; font-weight: 800; font-size: 18px; }
.brand-mark {
  width: 30px; height: 30px; display: grid; place-items: center;
  border-radius: 7px; background: var(--ink); color: white; font-size: 16px;
  transform: rotate(-4deg);
}
.main-nav { display: flex; align-items: center; gap: 34px; font-size: 14px; color: #4d4c46; }
.main-nav a:hover { color: var(--orange); }
.header-cta {
  justify-self: end; padding: 11px 18px; border-radius: 6px; background: var(--ink); color: white;
  font-size: 14px; font-weight: 700; transition: transform .2s ease, background .2s ease;
}
.header-cta:hover { transform: translateY(-2px); background: var(--orange); }

.hero {
  width: min(1440px, calc(100% - 48px));
  min-height: calc(100vh - 76px);
  margin: 0 auto;
  padding: 72px 0 86px;
  display: grid;
  grid-template-columns: minmax(420px, .88fr) minmax(580px, 1.12fr);
  align-items: center;
  gap: clamp(42px, 6vw, 104px);
}
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 20px; font-size: 12px; font-weight: 800; text-transform: uppercase; }
.eyebrow span { width: 25px; height: 3px; background: var(--orange); }
.hero h1 { margin: 0; font-size: 64px; line-height: 1.05; font-weight: 790; letter-spacing: 0; }
.hero h1 em { color: var(--orange); font-style: normal; }
.hero h1 em, .hero-title-line { display: inline-block; white-space: nowrap; }
.hero-lead { max-width: 620px; margin: 30px 0; font-size: 18px; line-height: 1.75; color: var(--muted); }
.prompt-box { padding: 18px; border: 1px solid var(--line); border-radius: 8px; background: #fff; box-shadow: 0 18px 50px rgba(25,25,20,.08); }
.prompt-box label { display: block; margin-bottom: 12px; font-weight: 750; font-size: 14px; }
.prompt-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.prompt-row input { min-width: 0; height: 50px; padding: 0 16px; border: 1px solid #cfcdc4; border-radius: 5px; outline: none; }
.prompt-row input:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(255,92,53,.12); }
.prompt-row button { height: 50px; padding: 0 20px; border: 0; border-radius: 5px; background: var(--orange); color: white; font-weight: 800; cursor: pointer; }
.prompt-row button:hover { background: #e84925; }
.hero-note { margin: 13px 0 0; color: #89877f; font-size: 12px; }

.hero-stage { position: relative; min-width: 0; border: 1px solid #2b2b29; border-radius: 8px; background: var(--dark); box-shadow: 24px 30px 0 var(--yellow); overflow: visible; }
.stage-toolbar { height: 50px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 16px; border-bottom: 1px solid #383835; color: #b7b6af; font-size: 11px; }
.stage-toolbar b { justify-self: end; padding: 6px 10px; border-radius: 4px; background: var(--lime); color: #191915; }
.window-dots { display: flex; gap: 5px; }
.window-dots i { width: 7px; height: 7px; border-radius: 50%; background: #575752; }
.stage-body { height: clamp(390px, 41vw, 590px); display: grid; grid-template-columns: 108px 1fr; }
.slide-rail { padding: 16px 14px; border-right: 1px solid #383835; display: flex; flex-direction: column; gap: 12px; }
.mini-slide { aspect-ratio: 16/10; padding: 7px; border: 1px solid #454540; border-radius: 3px; background: #2b2b27; color: #77776e; font-size: 7px; }
.mini-slide.active { border: 2px solid var(--orange); background: #fff5dd; color: #171714; }
.slide-rail button { aspect-ratio: 16/6; border: 1px dashed #55554f; background: transparent; color: #8a8982; cursor: pointer; }
.canvas { margin: clamp(24px, 3vw, 48px); padding: clamp(24px, 3vw, 48px); border-radius: 3px; background: #f3ead6; display: flex; flex-direction: column; overflow: hidden; }
.canvas-topline { display: flex; justify-content: space-between; font-size: 8px; font-weight: 800; color: #6b6358; }
.canvas h2 { margin: auto 0 28px; max-width: 550px; font-size: clamp(28px, 3vw, 56px); line-height: 1.05; font-weight: 800; }
.canvas-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 14px; }
.metric { min-height: 100px; padding: 16px; background: var(--orange); color: white; display: flex; flex-direction: column; justify-content: space-between; }
.metric b { font-size: clamp(24px, 2.8vw, 46px); }
.metric span { font-size: 10px; }
.chart { min-height: 100px; padding: 16px; background: var(--lime); display: flex; align-items: end; gap: 8px; }
.chart i { flex: 1; min-width: 6px; background: #25251f; }
.chart i:nth-child(1) { height: 25%; }.chart i:nth-child(2) { height: 45%; }.chart i:nth-child(3) { height: 36%; }.chart i:nth-child(4) { height: 68%; }.chart i:nth-child(5) { height: 90%; }
.ai-bubble { position: absolute; right: -25px; bottom: 36px; display: flex; align-items: center; gap: 10px; padding: 13px 16px; border-radius: 7px; background: white; box-shadow: 0 12px 38px rgba(0,0,0,.18); }
.ai-bubble > span { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 5px; background: var(--orange); color: white; }
.ai-bubble div { display: grid; gap: 3px; }.ai-bubble b { font-size: 12px; }.ai-bubble small { color: #85837b; font-size: 9px; }

.trust-line { border-block: 1px solid var(--line); padding: 22px max(24px, calc((100vw - 1440px)/2)); display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.trust-line p { margin: 0; font-weight: 800; }
.trust-line div { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 28px; color: #75736c; font-size: 13px; }
.trust-line span::before { content: "•"; margin-right: 10px; color: var(--orange); }

.formats, .faq { width: min(1440px, calc(100% - 48px)); margin: 0 auto; padding: 130px 0; }
.section-heading { max-width: 660px; margin-bottom: 54px; }
.section-heading h2 { margin: 0 0 20px; font-size: clamp(44px, 5vw, 76px); line-height: 1; }
.section-heading > p:last-child { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.7; }
.format-grid { display: grid; grid-template-columns: 1.1fr .9fr .9fr; gap: 16px; }
.format-card { min-height: 560px; padding: 26px; border: 1px solid var(--line); border-radius: 7px; overflow: hidden; display: flex; flex-direction: column; }
.format-card h3 { margin: 40px 0 12px; font-size: 30px; }
.format-card > p { margin: 0; max-width: 380px; color: var(--muted); line-height: 1.7; }
.card-index { font-size: 11px; font-weight: 800; }
.presentation-card { background: #ffefbb; }
.web-card { background: #e3e1fa; }
.document-card { background: #e5f2d5; }
.visual-slides { position: relative; height: 255px; margin-top: auto; }
.visual-slides > div { position: absolute; width: 73%; aspect-ratio: 16/10; padding: 24px; border: 1px solid #20201d; background: var(--orange); box-shadow: 9px 10px 0 rgba(23,23,20,.16); display: flex; flex-direction: column; }
.visual-slides > div:first-child { left: 2%; bottom: 6%; transform: rotate(-6deg); color: white; justify-content: space-between; }
.visual-slides > div:last-child { right: 0; bottom: 0; transform: rotate(5deg); background: #fffaf0; }
.visual-slides b { font-size: 46px; }.visual-slides span { font-size: 12px; }.visual-slides i { height: 5px; margin-top: 17px; background: #282822; }.visual-slides i:nth-of-type(2) { width: 70%; }.visual-slides i:nth-of-type(3) { width: 42%; }
.visual-web { margin: auto -26px -26px; min-height: 245px; padding: 30px; background: #262357; color: white; display: flex; flex-direction: column; }
.visual-web span, .visual-web i { font-size: 9px; font-style: normal; }.visual-web b { margin: auto 0; font-size: 31px; line-height: 1.05; }.visual-web i { width: max-content; padding-bottom: 4px; border-bottom: 1px solid white; }
.visual-doc { margin: auto 12px 0; min-height: 280px; padding: 28px; background: white; box-shadow: 0 16px 30px rgba(50,60,40,.13); display: flex; flex-direction: column; }
.visual-doc span { font-size: 9px; color: #777; }.visual-doc b { margin: 34px 0; font-size: 27px; line-height: 1.15; }.visual-doc i { height: 5px; margin-bottom: 13px; background: #d6d6d0; }.visual-doc i:nth-of-type(2) { width: 85%; }.visual-doc i:nth-of-type(3) { width: 56%; }

.workflow { display: grid; grid-template-columns: .85fr 1.15fr; gap: 9vw; padding: 130px max(24px, calc((100vw - 1440px)/2)); background: var(--dark); color: white; }
.workflow-copy { align-self: start; position: sticky; top: 60px; }
.workflow-copy h2 { margin: 0 0 24px; max-width: 560px; font-size: clamp(46px, 5vw, 76px); line-height: 1.02; }
.workflow-copy > p:not(.eyebrow) { max-width: 510px; color: #aaa9a2; line-height: 1.75; }
.workflow-copy > a { display: inline-block; margin-top: 28px; padding-bottom: 6px; border-bottom: 1px solid var(--lime); color: var(--lime); font-weight: 750; }
.steps { margin: 0; padding: 0; list-style: none; }
.steps li { min-height: 170px; padding: 32px 0; border-top: 1px solid #454540; display: grid; grid-template-columns: 70px 1fr; gap: 20px; }
.steps li:last-child { border-bottom: 1px solid #454540; }
.steps > li > span { color: var(--orange); font-size: 12px; font-weight: 800; }
.steps h3 { margin: 0 0 14px; font-size: 28px; }.steps p { margin: 0; color: #aaa9a2; line-height: 1.7; }

.template-section { padding: 125px max(24px, calc((100vw - 1440px)/2)); background: var(--orange); color: white; overflow: hidden; }
.template-section .section-heading { max-width: 860px; }
.template-section .section-heading h2 { font-size: 64px; white-space: nowrap; }
.light-heading .eyebrow span { background: var(--yellow); }
.template-track { display: grid; grid-template-columns: repeat(4, minmax(260px, 1fr)); gap: 16px; }
.template { aspect-ratio: 3/4; min-height: 420px; padding: 24px; display: flex; flex-direction: column; border-radius: 5px; color: var(--ink); overflow: hidden; transition: transform .25s ease, box-shadow .25s ease; }
.template:hover { transform: translateY(-9px); box-shadow: 0 22px 40px rgba(91,24,8,.2); }
.template-meta, .template-footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 9px; font-weight: 800; }
.template-meta small { font-size: 9px; }.template-meta > span { padding: 4px 6px; border: 1px solid currentColor; }
.template-kicker { margin: 36px 0 10px; font-size: 8px; font-weight: 800; }
.template-title { margin: 0; font-size: 35px; line-height: 1.04; }
.template-footer { margin-top: auto; padding-top: 16px; border-top: 1px solid currentColor; }
.template-one { background: #ffe49a; }
.business-data { margin-top: auto; display: grid; grid-template-columns: .78fr 1.22fr; gap: 14px; align-items: end; padding-bottom: 22px; }
.business-data > div:first-child { display: flex; flex-direction: column; }.business-data strong { font-size: 38px; line-height: 1; }.business-data small { margin-top: 7px; font-size: 9px; }
.mini-bars { height: 76px; display: flex; align-items: end; gap: 5px; border-bottom: 1px solid var(--ink); }
.mini-bars i { width: 20%; background: var(--orange); }.mini-bars i:nth-child(1) { height: 28%; }.mini-bars i:nth-child(2) { height: 45%; }.mini-bars i:nth-child(3) { height: 38%; }.mini-bars i:nth-child(4) { height: 68%; }.mini-bars i:nth-child(5) { height: 92%; }
.template-two { background: var(--lime); }
.template-two .template-title { margin-top: 42px; }
.brand-board { position: relative; height: 150px; margin: auto -24px 22px 30px; background: var(--ink); color: white; overflow: hidden; }
.brand-board span { position: absolute; top: 14px; left: 16px; font-size: 9px; font-weight: 800; }.brand-board b { position: absolute; right: 17px; bottom: -15px; color: var(--yellow); font-size: 112px; line-height: 1; }
.brand-board i { position: absolute; display: block; background: var(--orange); }.brand-board i:nth-of-type(1) { width: 52px; height: 52px; left: 18px; bottom: 18px; }.brand-board i:nth-of-type(2) { width: 68px; height: 12px; left: 82px; top: 42px; background: white; }.brand-board i:nth-of-type(3) { width: 38px; height: 38px; left: 100px; bottom: 20px; background: var(--lime); }
.template-three { background: #9dd9f2; color: #092b3c; }
.template-three .template-title { font-size: 40px; }
.ocean-stats { margin-top: auto; display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; align-items: end; padding: 18px; background: #073e59; color: white; }
.ocean-stats strong { font-size: 40px; line-height: .9; }.ocean-stats > span { font-size: 9px; line-height: 1.4; }.ocean-stats div { grid-column: 1/-1; display: flex; gap: 5px; height: 20px; align-items: end; }.ocean-stats i { flex: 1; height: 5px; background: #62c7ee; }.ocean-stats i:nth-child(2) { height: 11px; }.ocean-stats i:nth-child(3) { height: 18px; background: var(--yellow); }
.template-four { background: #f8f5ee; }
.template-four .template-title { margin: 54px 0 28px; font-size: 34px; }
.project-list { display: grid; border-top: 1px solid var(--ink); }
.project-list span { padding: 10px 0; border-bottom: 1px solid var(--ink); font-size: 10px; text-transform: uppercase; }.project-list b { display: inline-block; width: 32px; color: var(--orange); }

.faq { display: grid; grid-template-columns: .78fr 1.22fr; gap: 9vw; }
.faq-list { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { padding: 25px 40px 25px 0; position: relative; list-style: none; cursor: pointer; font-size: 18px; font-weight: 750; }
.faq summary::-webkit-details-marker { display: none; }.faq summary::after { content: "+"; position: absolute; right: 4px; font-size: 24px; font-weight: 400; }.faq details[open] summary::after { content: "−"; }
.faq details p { margin: -6px 0 26px; max-width: 680px; color: var(--muted); line-height: 1.75; }

.final-cta { min-height: 520px; padding: 80px 24px; background: var(--yellow); text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.final-cta p { margin: 0 0 12px; font-weight: 800; }.final-cta h2 { margin: 0 0 40px; font-size: clamp(54px, 8vw, 116px); line-height: .95; }.final-cta a { padding: 16px 24px; border-radius: 6px; background: var(--ink); color: white; font-weight: 800; }
.site-footer { padding: 54px max(24px, calc((100vw - 1440px)/2)); display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 30px; background: var(--dark); color: white; }
.footer-brand { font-size: 16px; }.site-footer p { margin: 0; color: #a7a69f; }.site-footer div { display: flex; gap: 24px; font-size: 13px; }.site-footer small { grid-column: 1/-1; padding-top: 30px; border-top: 1px solid #3b3b37; color: #77766f; }

@media (max-width: 1080px) {
  .main-nav { display: none; }.site-header { grid-template-columns: 1fr auto; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 70px; }.hero-copy { max-width: 760px; }
  .hero-stage { width: calc(100% - 24px); margin-top: 26px; }
  .format-grid { grid-template-columns: 1fr 1fr; }.format-card:first-child { grid-column: 1/-1; }
  .workflow { grid-template-columns: 1fr; gap: 60px; }.workflow-copy { position: static; }
  .template-track { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .site-header, .hero, .formats, .faq { width: min(100% - 28px, 1440px); }
  .site-header { height: 66px; }.header-cta { padding: 10px 13px; }.brand { font-size: 16px; }.brand-mark { width: 28px; height: 28px; }
  .hero { padding: 38px 0 28px; gap: 20px; }.hero h1 { font-size: 40px; }.hero-lead { margin: 18px 0; font-size: 15px; line-height: 1.6; }
  .hero .eyebrow { margin-bottom: 13px; }.prompt-box { padding: 12px; }.prompt-box label { margin-bottom: 8px; }
  .prompt-row { grid-template-columns: 1fr; gap: 7px; }.prompt-row input, .prompt-row button { height: 44px; }.prompt-row button { width: 100%; }
  .hero-note { display: none; }
  .hero-stage { width: calc(100% - 10px); box-shadow: 10px 12px 0 var(--yellow); }
  .stage-toolbar { height: 44px; grid-template-columns: 1fr auto; }.stage-toolbar > span { display: none; }
  .stage-body { height: 200px; grid-template-columns: 48px 1fr; }.slide-rail { padding: 8px 6px; gap: 6px; }.canvas { margin: 10px; padding: 14px; }.canvas h2 { font-size: 21px; margin-bottom: 10px; }.canvas-grid { grid-template-columns: 1fr; }.chart { display: none; }.metric { min-height: 52px; padding: 9px; }.metric b { font-size: 23px; }.ai-bubble { display: none; }
  .trust-line { align-items: flex-start; flex-direction: column; }.trust-line div { justify-content: flex-start; gap: 14px 20px; }
  .formats, .faq { padding: 88px 0; }.section-heading { margin-bottom: 38px; }.section-heading h2 { font-size: 46px; }
  .format-grid { grid-template-columns: 1fr; }.format-card:first-child { grid-column: auto; }.format-card { min-height: 510px; }
  .workflow { padding-block: 90px; }.workflow-copy h2 { font-size: 46px; }.steps li { grid-template-columns: 48px 1fr; }
  .template-section { padding-block: 88px; }.template-section .section-heading h2 { font-size: 32px; }.template-track { grid-template-columns: repeat(4, 260px); overflow-x: auto; padding-bottom: 15px; scroll-snap-type: x mandatory; }.template { scroll-snap-align: start; }
  .faq { grid-template-columns: 1fr; gap: 10px; }.faq summary { font-size: 16px; }
  .final-cta { min-height: 420px; }.final-cta h2 { font-size: 58px; }
  .site-footer { grid-template-columns: 1fr; }.site-footer div { flex-wrap: wrap; }.site-footer small { grid-column: auto; }
}

@media (max-width: 360px) {
  .hero h1 { font-size: 36px; }
  .template-section .section-heading h2 { font-size: 28px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }