:root {
  --ink: #111c27;
  --paper: #f5f4ef;
  --mint: #b6e3cb;
  --mint-deep: #2c6a4a;
  --muted: #58645f;
  --line: #d5dbd3;
  --soft: #e6eee8;
  --dark-line: #3b4c53;
  --orange: #d98057;
  --white: #fff;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
::selection { background: var(--mint); color: var(--ink); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--paper); }
::-webkit-scrollbar-thumb { background: #aeb9b2; border: 2px solid var(--paper); border-radius: 10px; }
a { color: inherit; text-decoration: none; text-underline-offset: 5px; }
button { font: inherit; color: inherit; }
a, button { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible { outline: 3px solid #387853; outline-offset: 5px; }
svg { display: block; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
.theme-title .theme-line { display: block; white-space: nowrap; }
.wrap { width: min(1180px, calc(100% - 112px)); margin-inline: auto; }
.section { padding-block: 112px; }
.eyebrow { color: var(--mint-deep); font-size: 11px; font-weight: 700; letter-spacing: .11em; line-height: 1.4; text-transform: uppercase; }
.skip-link { position: fixed; top: -70px; left: 16px; z-index: 20; background: var(--ink); color: var(--paper); padding: 12px 20px; }
.skip-link:focus { top: 12px; }

.site-header { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--paper) 94%, transparent); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 76px; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; white-space: nowrap; font-size: 23px; font-weight: 750; letter-spacing: -.04em; line-height: 1.2; }
.brand b { font-weight: 450; }
.brand svg { width: 25px; height: 25px; }
.site-nav { display: flex; align-items: center; gap: 28px; font-size: 13px; font-weight: 600; }
.site-nav > a { position: relative; padding: 9px 0; }
.site-nav > a:not(.nav-workspace)::after { content: ""; position: absolute; right: 0; bottom: 3px; left: 0; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform .2s var(--ease); }
.site-nav > a:not(.nav-workspace):hover::after { transform: scaleX(1); }
.nav-workspace { display: inline-flex; align-items: center; gap: 13px; border: 1px solid var(--ink); padding: 8px 13px !important; }
.nav-workspace:hover { background: var(--ink); color: var(--paper); }
.menu-toggle { display: none; align-items: center; justify-content: center; gap: 10px; min-width: 80px; min-height: 40px; padding: 8px 12px; border: 1px solid #9aa79c; background: none; cursor: pointer; font-size: 12px; }
.menu-lines { position: relative; width: 15px; height: 12px; }
.menu-lines::before, .menu-lines::after { content: ""; position: absolute; left: 0; width: 15px; height: 1px; background: var(--ink); transition: transform .2s var(--ease); }
.menu-lines::before { top: 3px; }
.menu-lines::after { bottom: 3px; }
.menu-toggle[aria-expanded="true"] .menu-lines::before { transform: translateY(2.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-lines::after { transform: translateY(-2.5px) rotate(-45deg); }

.hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 54px; align-items: center; padding-top: 86px; padding-bottom: 94px; }
.hero h1 { max-width: none; margin-top: 22px; font-size: clamp(34px, 3.25vw, 50px); font-weight: 750; letter-spacing: -.055em; line-height: 1.2; }
.hero h1 em { position: relative; z-index: 1; font-style: normal; }
.hero h1 em::before { content: ""; position: absolute; right: -.02em; bottom: .08em; left: -.015em; z-index: -1; height: .26em; background: var(--mint); }
.hero-intro { max-width: 510px; margin-top: 28px; color: #43514e; font-size: 16px; line-height: 1.95; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 22px; margin-top: 31px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 19px; min-height: 50px; padding: 12px 20px; border: 1px solid transparent; font-size: 13px; font-weight: 700; line-height: 1.3; transition: background .2s, color .2s, border-color .2s, transform .2s var(--ease); }
.button:hover { transform: translateY(-2px); }
.button svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.button-dark { background: var(--ink); color: var(--paper); }
.button-dark:hover { background: #2b4b3a; }
.button-light { background: var(--mint); color: var(--ink); }
.button-light:hover { background: #d5efdf; }
.text-link { display: inline-flex; align-items: center; gap: 13px; min-height: 36px; border-bottom: 1px solid #9ea9a2; font-size: 13px; }
.text-link:hover { border-color: var(--ink); }
.hero-note { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin-top: 34px; color: #65746b; font-size: 12px; }
.hero-note strong { color: var(--ink); font-weight: 650; }

.hero-demo { overflow: hidden; border: 1px solid #31434a; background: var(--ink); color: var(--paper); box-shadow: 0 28px 56px #111c2717; }
.demo-topline { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 19px 22px; border-bottom: 1px solid var(--dark-line); font-size: 12px; font-weight: 650; }
.demo-status { display: inline-flex; align-items: center; gap: 7px; color: var(--mint); font-size: 10px; font-weight: 500; }
.demo-status i { width: 6px; height: 6px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 5px #b6e3cb1c; }
.demo-flow { display: grid; grid-template-columns: 1fr 30px 1fr 30px 1fr; gap: 10px; align-items: center; padding: 24px 22px 20px; }
.demo-block { min-height: 238px; padding: 16px 14px; border: 1px solid #52676b; background: #182831; }
.demo-block strong { display: block; margin-top: 12px; font-size: 14px; font-weight: 600; line-height: 1.6; }
.demo-block p { min-height: 44px; margin-top: 10px; color: #b8c8c5; font-size: 11px; line-height: 1.75; }
.demo-label { color: var(--mint); font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.demo-connector { display: flex; flex-direction: column; align-items: center; gap: 7px; color: #8fa59e; font-size: 9px; }
.demo-connector span { position: relative; display: block; width: 100%; height: 1px; background: #648179; }
.demo-connector span::after { content: ""; position: absolute; top: -3px; right: -1px; border: 4px solid transparent; border-left-color: #648179; }
.voice-line { display: flex; align-items: center; gap: 3px; min-height: 34px; padding-top: 8px; border-top: 1px solid var(--dark-line); }
.voice-line > span:not(.voice-dot) { width: 3px; height: 12px; border-radius: 5px; background: #81aa98; opacity: .8; animation: voice 1.2s ease-in-out infinite alternate; }
.voice-line > span:nth-child(3) { height: 20px; animation-delay: .13s; }
.voice-line > span:nth-child(4) { height: 16px; animation-delay: .25s; }
.voice-line > span:nth-child(5) { height: 23px; animation-delay: .34s; }
.voice-line > span:nth-child(6) { height: 10px; animation-delay: .47s; }
.voice-dot { width: 7px; height: 7px; margin-right: 4px; border-radius: 50%; background: var(--orange); }
.voice-line small, .demo-canvas small, .demo-copilot small { display: block; margin-top: 9px; color: #9db1ad; font-size: 9px; line-height: 1.5; }
.question-chip { margin-top: 11px; padding: 7px 8px; border: 1px solid #49615b; color: #a9bfba; font-size: 10px; line-height: 1.45; }
.question-chip.active { border-color: var(--mint); background: #274439; color: var(--mint); }
.canvas-mini { display: flex; align-items: center; gap: 3px; margin-top: 22px; }
.canvas-mini span, .canvas-mini em { display: flex; align-items: center; justify-content: center; min-height: 30px; flex: 1; padding: 4px 3px; border: 1px solid #718e83; color: #c5d4ce; font-size: 8px; font-style: normal; text-align: center; }
.canvas-mini em { border-color: var(--mint); background: var(--mint); color: var(--ink); }
.canvas-mini i { position: relative; width: 7px; height: 1px; flex: none; background: #82a697; }
.canvas-mini i::after { content: ""; position: absolute; top: -3px; right: -1px; border: 3px solid transparent; border-left-color: #82a697; }
.demo-foot { display: flex; justify-content: space-between; gap: 15px; padding: 13px 22px; background: #263a3d; color: #b9d3c6; font-size: 10px; }

.promise-strip { background: var(--mint); }
.promise-strip .wrap { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 70px; }
.promise-strip span { color: #426c55; font-size: 10px; letter-spacing: .08em; }
.promise-strip strong { font-size: 16px; font-weight: 650; letter-spacing: -.015em; }

.i2m-section { padding-block: 96px; background: #e5eee8; }
.i2m-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 74px; align-items: center; }
.i2m-copy h2 { margin-top: 18px; font-size: clamp(32px, 3.4vw, 47px); font-weight: 700; letter-spacing: -.055em; line-height: 1.25; }
.i2m-copy h2 em { position: relative; z-index: 1; display: inline; font-style: normal; }
.i2m-copy h2 em::before { content: ""; position: absolute; right: -.02em; bottom: .08em; left: -.015em; z-index: -1; height: .25em; background: var(--mint); }
.i2m-copy > p:not(.eyebrow) { max-width: 460px; margin-top: 23px; color: #50635a; font-size: 14px; line-height: 1.95; }
.i2m-copy > p strong { color: var(--ink); font-weight: 700; }
.i2m-definition { display: inline-flex; align-items: center; gap: 13px; margin-top: 27px; padding: 13px 16px; border: 1px solid #a8c3b0; background: #f5f7f1; }
.i2m-definition > span { display: inline-flex; align-items: center; justify-content: center; width: 39px; height: 39px; background: var(--ink); color: var(--mint); font-size: 12px; font-weight: 800; letter-spacing: .04em; }
.i2m-definition strong, .i2m-definition small { display: block; line-height: 1.35; }
.i2m-definition strong { font-size: 13px; font-weight: 700; }
.i2m-definition small { margin-top: 3px; color: var(--muted); font-size: 10px; }
.i2m-visual { margin: 0; }
.i2m-visual svg { width: 100%; height: auto; filter: drop-shadow(0 20px 28px #111c2712); font-family: var(--sans); }
.i2m-visual figcaption { margin-top: 12px; color: #60736a; font-size: 10px; text-align: right; }

.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 60px; margin-bottom: 48px; }
.section-heading h2 { margin-top: 17px; font-size: clamp(31px, 3.5vw, 47px); font-weight: 680; letter-spacing: -.05em; line-height: 1.28; }
.section-heading > p { max-width: 390px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step-card { min-height: 625px; padding: 25px 23px 22px; border: 1px solid var(--line); background: #faf9f4; }
.step-card.featured { border-color: #7ca58f; background: #e8f1eb; }
.step-card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.step-card.featured .step-card-top { border-color: #b7d0be; }
.step-number { color: var(--mint-deep); font-size: 13px; font-variant-numeric: tabular-nums; font-weight: 750; }
.step-kicker { color: #6c7871; font-size: 10px; }
.feature-carousel { margin-top: 18px; }
.feature-slides { min-height: 247px; }
.feature-visual { margin: 0; }
.feature-visual svg { width: 100%; height: auto; font-family: var(--sans); }
.feature-visual figcaption { display: grid; gap: 5px; margin-top: 11px; color: #687a70; font-size: 10px; line-height: 1.55; }
.feature-visual figcaption span { color: #5b8b70; font-size: 9px; font-weight: 750; letter-spacing: .04em; text-transform: uppercase; }
.feature-visual figcaption strong { color: var(--ink); font-size: 15px; font-weight: 650; letter-spacing: -.02em; }
.feature-visual figcaption small { color: #687a70; font-size: 10px; }
.carousel-controls { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; padding-top: 11px; border-top: 1px solid var(--line); }
.step-card.featured .carousel-controls { border-color: #b7d0be; }
.carousel-controls > button { display: grid; width: 27px; height: 27px; place-items: center; border: 1px solid #9bb3a4; background: transparent; color: #2c6a4a; font-size: 16px; line-height: 1; cursor: pointer; }
.carousel-controls > button:hover, .carousel-controls > button:focus-visible { border-color: #2c6a4a; background: #dcebe1; outline: none; }
.carousel-dots { display: flex; align-items: center; justify-content: center; gap: 7px; }
.carousel-dots button { width: 7px; height: 7px; padding: 0; border: 1px solid #7ca58f; border-radius: 50%; background: transparent; cursor: pointer; }
.carousel-dots button[aria-selected="true"] { background: #2c6a4a; box-shadow: 0 0 0 3px #dcebe1; }
.carousel-dots button:focus-visible { outline: 2px solid #2c6a4a; outline-offset: 3px; }
.feature-slide[hidden] { display: none; }
.feature-slide:not(.is-active) { display: none; }
.feature-slide.is-active { display: block; }
.overview-carousel .feature-slides { min-height: 0; }
.overview-carousel .feature-visual { margin: 0; }
.overview-carousel .feature-visual figcaption { display: grid; gap: 5px; min-height: 102px; margin: 0; padding: 14px 22px; text-align: left; line-height: 1.5; }
.overview-carousel .feature-visual figcaption span { font-size: 10px; letter-spacing: .04em; }
.overview-carousel .feature-visual figcaption strong { font-size: 19px; font-weight: 650; }
.overview-carousel .feature-visual figcaption small { font-size: 11px; }
.overview-carousel .carousel-controls { flex-wrap: wrap; margin: 0; padding: 13px 22px; }
.overview-carousel .carousel-dots { margin-inline: 8px; }
.hero-carousel .feature-visual figcaption { background: #182831; }
.hero-carousel .feature-visual figcaption span, .hero-carousel .feature-visual figcaption strong { color: var(--mint); }
.hero-carousel .feature-visual figcaption small { color: #b8c8c5; }
.hero-carousel .carousel-controls { border-color: var(--dark-line); }
.hero-carousel .carousel-controls > button { color: var(--mint); border-color: #648179; }
.hero-carousel .carousel-controls > button:hover, .hero-carousel .carousel-controls > button:focus-visible { background: #274439; border-color: var(--mint); }
.hero-carousel .carousel-dots button[aria-selected="true"] { background: var(--mint); box-shadow: 0 0 0 3px #274439; }
.i2m-carousel { overflow: hidden; border: 1px solid #a8c3b0; background: #f5f7f1; }
.i2m-carousel .i2m-visual svg { filter: none; }
.i2m-carousel .i2m-output { margin: 0; padding: 12px 22px; border-top: 1px solid var(--line); color: #60736a; font-size: 10px; line-height: 1.7; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.step-card h3 { margin-top: 18px; font-size: 28px; font-weight: 650; letter-spacing: -.04em; }
.step-card p { min-height: 92px; margin-top: 12px; color: var(--muted); font-size: 13px; line-height: 1.9; }
.step-example { padding-top: 14px; border-top: 1px solid var(--line); }
.step-card.featured .step-example { border-color: #b7d0be; }
.step-example span { display: block; color: var(--mint-deep); font-size: 10px; }
.step-example strong { display: block; margin-top: 5px; font-size: 13px; font-weight: 600; line-height: 1.6; }

.method-section { padding-block: 104px; background: var(--ink); color: var(--paper); }
.method-section .eyebrow { color: var(--mint); }
.method-section .section-heading > p { color: #b6c5c2; }
.method-chain { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: center; gap: 18px; margin-bottom: 31px; padding: 19px 22px; border: 1px solid #536861; background: #182a31; }
.method-chain span { color: var(--mint); font-size: 16px; font-weight: 650; text-align: center; }
.method-chain i { color: #89a99b; font-size: 19px; font-style: normal; text-align: center; }
.method-engine { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); align-items: center; gap: 8px; padding: 17px 20px; border: 1px solid #3f5557; background: #12242c; }
.method-engine span { display: flex; align-items: center; justify-content: center; gap: 5px; color: #d8e5df; font-size: 11px; text-align: center; }
.method-engine b { color: var(--mint); font-size: 11px; font-weight: 700; }
.method-engine small { color: #a5b9b1; font-size: 10px; }
.method-engine i { color: #73978a; font-size: 14px; font-style: normal; text-align: center; }
.method-engine-note { margin: 12px 0 29px; color: #aebfba; font-size: 11px; line-height: 1.8; }
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.method-grid article { display: grid; grid-template-columns: 35px 1fr; gap: 15px; min-height: 205px; padding: 22px 20px; border-top: 1px solid #51665e; border-bottom: 1px solid #34474d; }
.method-index { display: flex; align-items: center; justify-content: center; width: 28px; height: 28px; border: 1px solid var(--mint); border-radius: 50%; color: var(--mint); font-size: 11px; }
.method-grid h3 { font-size: 20px; font-weight: 600; letter-spacing: -.02em; }
.method-grid p { margin-top: 10px; color: #c1d0cc; font-size: 13px; line-height: 1.85; }
.method-grid small { display: block; margin-top: 18px; color: #91b59f; font-size: 10px; }
.method-note { display: flex; align-items: center; gap: 14px; margin-top: 28px; padding: 16px 18px; border-left: 2px solid var(--orange); background: #1a2e35; }
.method-note-mark { display: flex; align-items: center; justify-content: center; width: 24px; height: 24px; color: #f0bd9e; font-size: 17px; }
.method-note p { color: #bccbc6; font-size: 12px; line-height: 1.8; }
.method-note strong { color: #f0c4a7; font-weight: 650; }

.quickstart-section { padding-block: 104px; background: var(--soft); }
.quickstart-layout { display: grid; grid-template-columns: .92fr 1.08fr; gap: 100px; align-items: start; }
.quickstart-layout h2 { margin-top: 18px; font-size: clamp(32px, 4vw, 49px); font-weight: 680; letter-spacing: -.05em; line-height: 1.28; }
.quickstart-intro { max-width: 430px; margin-top: 22px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.quickstart-layout .button { margin-top: 28px; }
.start-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid #9caf9f; }
.start-list li { display: grid; grid-template-columns: 41px 1fr; gap: 17px; padding: 23px 0; border-bottom: 1px solid #bdcfc2; }
.start-list li > span { color: var(--mint-deep); font-size: 12px; font-weight: 750; }
.start-list strong { display: block; font-size: 18px; font-weight: 650; }
.start-list p { max-width: 490px; margin-top: 5px; color: #52675d; font-size: 13px; line-height: 1.8; }
.start-list b { color: var(--mint-deep); font-weight: 700; }

.roles-section { padding-block: 37px; background: var(--mint); }
.role-line { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 24px; align-items: center; }
.role-line > div { display: grid; grid-template-columns: auto 1fr; align-items: baseline; column-gap: 12px; }
.role-label { grid-row: span 2; color: var(--mint-deep); font-size: 11px; font-weight: 750; letter-spacing: .06em; }
.role-line strong { font-size: 16px; font-weight: 650; }
.role-line small { color: #4e735e; font-size: 10px; line-height: 1.6; }
.role-line > i { color: #5d9170; font-size: 23px; font-style: normal; font-weight: 300; }

.closing-section { padding-block: 96px 104px; }
.closing-layout { display: grid; grid-template-columns: 1.08fr .92fr; gap: 90px; align-items: end; }
.closing-layout h2 { margin-top: 18px; font-size: clamp(35px, 4.2vw, 56px); font-weight: 700; letter-spacing: -.055em; line-height: 1.25; }
.closing-layout > div:last-child { max-width: 420px; }
.closing-layout > div:last-child > p:first-child { color: var(--muted); font-size: 14px; line-height: 1.9; }
.closing-layout .button { margin-top: 28px; }
.boundary-note { padding-top: 20px; border-top: 1px solid var(--line); margin-top: 29px; color: #6b776f; font-size: 11px !important; line-height: 1.8 !important; }

.site-footer { padding-block: 34px 20px; background: var(--ink); color: var(--paper); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.footer-inner .brand { font-size: 21px; }
.footer-inner > p { color: #b6c6c4; font-size: 10px; }
.footer-inner > div { display: flex; gap: 22px; color: #c3d2cc; font-size: 10px; }
.footer-inner > div a:hover { color: var(--mint); }
.footer-note { display: flex; justify-content: space-between; gap: 25px; padding-top: 26px; color: #99abb0; font-size: 9px; }

@keyframes voice { from { transform: scaleY(.62); opacity: .45; } to { transform: scaleY(1); opacity: .95; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }

@media (max-width: 1080px) {
  .wrap { width: calc(100% - 72px); }
  .site-nav { gap: 18px; }
  .hero { gap: 40px; }
  .hero h1 { font-size: clamp(34px, 3.25vw, 46px); }
  .demo-flow { grid-template-columns: 1fr; gap: 9px; }
  .demo-block { min-height: 0; }
  .demo-connector { flex-direction: row; justify-content: center; }
  .demo-connector span { width: 45px; }
  .step-card p { min-height: 140px; }
  .quickstart-layout { gap: 55px; }
}

@media (max-width: 820px) {
  .header-inner { min-height: 68px; }
  .menu-toggle { display: flex; }
  .site-nav { display: none; position: absolute; top: 68px; right: 0; left: 0; flex-direction: column; align-items: stretch; gap: 3px; padding: 18px 36px 25px; border-bottom: 1px solid var(--line); background: var(--paper); box-shadow: 0 18px 26px #111c2712; }
  .site-nav.is-open { display: flex; }
  .site-nav > a { min-height: 43px; padding: 10px 0; }
  .nav-workspace { justify-content: space-between; margin-top: 8px; padding: 12px 15px !important; }
  .hero { grid-template-columns: 1fr; gap: 45px; padding-top: 60px; padding-bottom: 67px; }
  .hero h1 { max-width: 690px; font-size: clamp(34px, 7vw, 52px); }
  .hero-intro { max-width: 640px; }
  .hero-demo { max-width: 680px; }
  .i2m-layout { grid-template-columns: 1fr; gap: 42px; }
  .i2m-copy > p:not(.eyebrow) { max-width: 650px; }
  .i2m-visual { max-width: 720px; }
  .section { padding-block: 78px; }
  .section-heading { display: block; margin-bottom: 34px; }
  .section-heading > p { margin-top: 20px; max-width: 580px; }
  .step-grid, .method-grid { grid-template-columns: 1fr; gap: 12px; }
  .step-card { min-height: 0; }
  .step-card p { min-height: 0; max-width: 600px; }
  .method-section, .quickstart-section { padding-block: 78px; }
  .method-chain { grid-template-columns: 1fr; gap: 8px; text-align: center; }
  .method-chain i { transform: rotate(90deg); }
  .method-engine { grid-template-columns: repeat(4, 1fr); row-gap: 12px; }
  .method-engine i { display: none; }
  .method-grid article { min-height: 0; }
  .quickstart-layout { grid-template-columns: 1fr; gap: 48px; }
  .role-line { grid-template-columns: 1fr; gap: 17px; }
  .role-line > i { display: none; }
  .role-line > div { grid-template-columns: 70px 1fr; }
  .closing-section { padding-block: 72px 80px; }
  .closing-layout { grid-template-columns: 1fr; gap: 38px; }
  .footer-inner { flex-wrap: wrap; }
  .footer-inner > p { order: 3; width: 100%; }
  .footer-inner > div { margin-left: auto; }
}

@media (max-width: 560px) {
  html { scroll-padding-top: 79px; }
  .wrap { width: calc(100% - 40px); }
  .brand { font-size: 21px; }
  .brand svg { width: 23px; height: 23px; }
  .site-nav { top: 68px; padding-inline: 20px; }
  .hero { padding-top: 45px; gap: 37px; }
  .hero h1 { font-size: clamp(24px, 7.4vw, 42px); line-height: 1.2; }
  .hero-intro { font-size: 14px; line-height: 1.9; }
  .hero-actions { gap: 17px; }
  .hero-actions .button { min-height: 48px; padding-inline: 16px; }
  .hero-note { margin-top: 23px; font-size: 11px; }
  .demo-topline { align-items: flex-start; flex-direction: column; gap: 6px; padding: 17px; }
  .demo-flow { padding: 17px; }
  .demo-foot { flex-direction: column; gap: 4px; padding: 12px 17px; }
  .promise-strip .wrap { align-items: flex-start; flex-direction: column; justify-content: center; gap: 2px; min-height: 92px; }
  .promise-strip strong { font-size: 15px; }
  .section { padding-block: 61px; }
  .section-heading h2, .quickstart-layout h2 { font-size: clamp(25px, 6.6vw, 32px); }
  .section-heading > p { font-size: 13px; }
  .step-card { padding: 20px 18px 19px; }
  .step-card h3 { font-size: 25px; }
  .step-card p { font-size: 13px; }
  .i2m-section, .method-section, .quickstart-section { padding-block: 61px; }
  .i2m-copy h2 { font-size: 32px; }
  .i2m-visual figcaption { text-align: left; }
  .method-chain { padding: 16px; }
  .method-chain span { font-size: 14px; }
  .method-engine { grid-template-columns: repeat(2, 1fr); padding: 14px; }
  .method-engine span { justify-content: flex-start; }
  .method-grid article { grid-template-columns: 30px 1fr; gap: 12px; padding: 19px 0; }
  .method-grid h3 { font-size: 19px; }
  .method-grid p { font-size: 13px; }
  .method-note { align-items: flex-start; margin-top: 22px; }
  .quickstart-intro { font-size: 13px; }
  .start-list strong { font-size: 17px; }
  .start-list p { font-size: 12px; }
  .roles-section { padding-block: 28px; }
  .closing-section { padding-block: 60px 64px; }
  .closing-layout h2 { font-size: 32px; }
  .closing-layout > div:last-child > p:first-child { font-size: 13px; }
  .footer-inner { align-items: flex-start; gap: 20px; }
  .footer-inner > div { width: 100%; margin-left: 0; gap: 20px; }
  .footer-note { flex-direction: column; gap: 7px; }
}

@media print {
  .site-header, .hero-actions, .menu-toggle, .roles-section, .site-footer { display: none !important; }
  body { background: #fff; font-size: 11pt; }
  .wrap { width: 100%; max-width: none; }
  .hero, .quickstart-layout, .closing-layout { grid-template-columns: 1fr 1fr; gap: 30px; padding-block: 20px; }
  .section, .method-section, .quickstart-section, .closing-section { padding-block: 25px; }
  .hero-demo, .method-section { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
}

/* 1.4.1 宣传页增量：只说明界面变化，不承载项目状态或业务判断。
 * 输入为静态三页示意和版本说明；依赖本文件品牌色与容器；副作用仅为呈现。 */
.hero-carousel .feature-visual figcaption { min-height: 120px; }
.method-double { grid-template-columns: 1fr auto 1fr; }
.release-section { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; padding-block: 50px 58px; border-top: 1px solid var(--line); }
.release-section h2 { font-size: clamp(24px, 2.7vw, 34px); line-height: 1.3; font-weight: 650; letter-spacing: -.02em; }
.release-section p { margin-top: 15px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.release-section ul { margin: 0; padding-left: 20px; color: var(--muted); font-size: 14px; line-height: 2; }
.release-section li + li { margin-top: 8px; }
@media (max-width: 820px) {
  .release-section { grid-template-columns: 1fr; gap: 24px; padding-block: 36px 42px; }
  .method-double { grid-template-columns: 1fr; }
}

/* 升级阅读入口沿用官网文字链接；只影响呈现，不改变下载或项目状态。 */
.release-links { display:flex;flex-wrap:wrap;gap:12px 24px; }
.release-links a { min-height:40px;display:inline-flex;align-items:center;color:var(--mint-deep);text-decoration:underline;text-underline-offset:5px;font-size:13px; }
.footer-inner > div { flex-wrap:wrap; }
@media (min-width:821px) and (max-width:1180px) { .site-nav { gap:14px;font-size:12px; } .header-inner { gap:18px; } }