:root {
  --paper: #f5f2e9;
  --paper-deep: #ebe7dc;
  --ink: #102b37;
  --ink-soft: #50666d;
  --teal: #1e9b74;
  --teal-dark: #0b7056;
  --teal-pale: #cbe7dc;
  --line: rgba(16, 43, 55, 0.16);
  --white: #fffef9;
  --radius: 24px;
  --shadow: 0 24px 80px rgba(16, 43, 55, 0.10);
  --shell: min(1180px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.shell { width: var(--shell); margin-inline: auto; }
.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;
}
.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 1000; padding: 10px 16px;
  color: white; background: var(--ink); border-radius: 8px; transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid #f0a72f; outline-offset: 4px; }

.site-header {
  position: fixed; inset: 0 0 auto; z-index: 100; height: 78px;
  border-bottom: 1px solid transparent; transition: background .25s ease, border-color .25s ease, height .25s ease;
}
.site-header.is-scrolled {
  height: 68px; background: rgba(245, 242, 233, .88); border-color: var(--line);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; }
.brand-mark {
  display: grid; place-items: center; width: 34px; aspect-ratio: 1; overflow: hidden;
  color: var(--paper); background: var(--ink); border-radius: 9px; transform: rotate(45deg);
}
.brand-mark span { font-size: 16px; font-weight: 800; transform: rotate(-45deg); }
.brand-name { font-size: 20px; letter-spacing: -.04em; }
.brand-cn { margin-left: 2px; padding-left: 12px; color: var(--ink-soft); border-left: 1px solid var(--line); font-size: 12px; letter-spacing: .14em; }
.site-nav { display: flex; align-items: center; gap: 34px; }
.site-nav a { position: relative; color: #304a54; text-decoration: none; font-size: 14px; font-weight: 600; }
.site-nav a::after { content: ""; position: absolute; right: 0; bottom: -8px; left: 0; height: 2px; background: var(--teal); transform: scaleX(0); transform-origin: right; transition: transform .2s ease; }
.site-nav a:hover::after, .site-nav a:focus-visible::after, .site-nav a.active::after { transform: scaleX(1); transform-origin: left; }
.menu-toggle { display: none; border: 0; background: transparent; }

.hero { position: relative; min-height: 800px; padding: 150px 0 96px; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 70px 70px; mask-image: linear-gradient(to bottom, black, transparent 84%); }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(10px); pointer-events: none; }
.hero-glow-one { top: 40px; right: -100px; width: 520px; height: 520px; background: radial-gradient(circle, rgba(30,155,116,.18), rgba(30,155,116,0) 70%); }
.hero-glow-two { bottom: 20px; left: -200px; width: 500px; height: 500px; background: radial-gradient(circle, rgba(237,182,67,.10), rgba(237,182,67,0) 70%); }
.hero-grid { position: relative; display: grid; grid-template-columns: .94fr 1.06fr; gap: 60px; align-items: center; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 26px; color: var(--teal-dark); font-size: 11px; line-height: 1; font-weight: 800; letter-spacing: .18em; }
.eyebrow span { width: 28px; height: 2px; background: currentColor; }
.hero h1, .section h2, .closing h2 { margin: 0; font-weight: 700; letter-spacing: -.055em; }
.hero h1 { max-width: 660px; font-size: clamp(54px, 6vw, 78px); line-height: 1.08; }
.hero h1 em { color: var(--teal-dark); font-style: normal; }
.hero-lead { max-width: 610px; margin: 32px 0 0; color: var(--ink-soft); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 14px; margin-top: 38px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 22px; min-height: 52px; padding: 0 22px; border-radius: 12px; text-decoration: none; font-size: 14px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: var(--ink); box-shadow: 0 12px 28px rgba(16,43,55,.18); }
.button-primary:hover { box-shadow: 0 16px 34px rgba(16,43,55,.24); }
.button-primary span { color: #65d1aa; font-size: 18px; }
.button-quiet { border: 1px solid var(--line); background: rgba(255,255,255,.38); }
.button-quiet:hover { background: rgba(255,255,255,.72); }
.hero-note { display: flex; align-items: center; gap: 12px; margin-top: 42px; color: #6a7c82; font-size: 11px; font-weight: 600; letter-spacing: .08em; }
.hero-note i { width: 3px; height: 3px; background: var(--teal); border-radius: 50%; }

.hero-console { position: relative; min-height: 550px; padding: 18px; border: 1px solid rgba(16,43,55,.14); border-radius: 28px; background: rgba(255,254,249,.62); box-shadow: var(--shadow); backdrop-filter: blur(10px); }
.console-topline, .console-footer { display: flex; align-items: center; justify-content: space-between; color: #5f7176; font-size: 8px; font-weight: 800; letter-spacing: .15em; }
.console-topline { height: 26px; padding: 0 8px 12px; }
.console-status { display: flex; align-items: center; gap: 7px; }
.console-status i { width: 6px; height: 6px; background: var(--teal); border-radius: 50%; box-shadow: 0 0 0 5px rgba(30,155,116,.1); animation: pulse 2.4s infinite; }
.console-stage { position: relative; min-height: 440px; overflow: hidden; border-radius: 18px; background: var(--ink); }
.stage-grid { position: absolute; inset: 0; opacity: .13; background-image: linear-gradient(rgba(255,255,255,.2) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.2) 1px, transparent 1px); background-size: 42px 42px; }
.stage-grid::before, .stage-grid::after { content: ""; position: absolute; background: rgba(69,222,166,.45); }
.stage-grid::before { top: 50%; left: 0; width: 100%; height: 1px; }
.stage-grid::after { top: 0; left: 50%; width: 1px; height: 100%; }
.stage-orbit { position: absolute; top: 50%; left: 50%; border: 1px solid rgba(102,216,175,.24); border-radius: 50%; transform: translate(-50%, -50%); }
.orbit-one { width: 300px; height: 300px; }
.orbit-two { width: 430px; height: 430px; }
.stage-core { position: absolute; top: 50%; left: 50%; z-index: 2; display: grid; place-items: center; width: 178px; height: 178px; color: white; background: radial-gradient(circle at 35% 30%, #25a97f, #0c6e57 62%, #06483e); border: 1px solid rgba(255,255,255,.34); border-radius: 50%; transform: translate(-50%, -50%); box-shadow: 0 0 0 14px rgba(54,196,146,.06), 0 20px 60px rgba(0,0,0,.28); }
.stage-core::before { content: ""; position: absolute; inset: 10px; border: 1px dashed rgba(255,255,255,.25); border-radius: 50%; }
.stage-core span { align-self: end; margin-bottom: -5px; font-size: 9px; letter-spacing: .12em; }
.stage-core strong { font-size: 29px; letter-spacing: .04em; }
.stage-core small { align-self: start; margin-top: -5px; color: #bce8d6; font-size: 8px; letter-spacing: .08em; }
.float-card { position: absolute; z-index: 3; min-width: 138px; padding: 15px; color: #dceae5; border: 1px solid rgba(255,255,255,.17); border-radius: 12px; background: rgba(15,45,54,.82); box-shadow: 0 12px 30px rgba(0,0,0,.23); backdrop-filter: blur(10px); }
.float-card small, .float-card span { display: block; color: #84a79e; font-size: 7px; letter-spacing: .13em; }
.float-card strong { display: block; margin: 8px 0 6px; color: white; font-size: 14px; }
.card-define { top: 50px; left: 34px; }
.card-build { top: 116px; right: 26px; }
.card-verify { right: 54px; bottom: 36px; }
.console-footer { height: 36px; padding: 14px 8px 0; }
.signal-bars { display: flex; align-items: end; gap: 3px; height: 10px; }
.signal-bars i { display: block; width: 3px; background: var(--teal); }
.signal-bars i:nth-child(1) { height: 3px; } .signal-bars i:nth-child(2) { height: 5px; } .signal-bars i:nth-child(3) { height: 8px; } .signal-bars i:nth-child(4) { height: 10px; } .signal-bars i:nth-child(5) { height: 7px; }

.intro-band { border-block: 1px solid var(--line); background: rgba(255,255,255,.24); }
.intro-band-inner { display: grid; grid-template-columns: .75fr 1.25fr; gap: 80px; align-items: center; min-height: 260px; padding-block: 52px; }
.intro-band p { margin: 0; color: var(--teal-dark); font-size: 24px; line-height: 1.45; font-weight: 700; letter-spacing: -.03em; }
.intro-statement { padding-left: 64px; border-left: 1px solid var(--line); }
.intro-statement span, .intro-statement strong { display: block; }
.intro-statement span { margin-bottom: 10px; color: #6b7c82; font-size: 14px; }
.intro-statement strong { font-size: clamp(22px, 2.8vw, 34px); line-height: 1.5; letter-spacing: -.035em; }

.section { padding: 132px 0; }
.section-heading { display: grid; grid-template-columns: 1fr 360px; gap: 80px; align-items: end; margin-bottom: 68px; }
.section-heading h2 { font-size: clamp(40px, 5vw, 64px); line-height: 1.18; }
.section-heading > p { margin: 0 0 6px; color: var(--ink-soft); font-size: 15px; line-height: 1.9; }
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.capability-card { position: relative; min-height: 570px; overflow: hidden; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,254,249,.62); transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; }
.capability-card:hover { transform: translateY(-6px); border-color: rgba(30,155,116,.35); box-shadow: 0 22px 52px rgba(16,43,55,.10); }
.card-index { color: #86979b; font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.card-symbol { position: relative; height: 160px; margin: 28px 0 36px; border-radius: 16px; background: var(--paper-deep); }
.card-symbol::after { content: ""; position: absolute; inset: 18px; border: 1px solid rgba(16,43,55,.08); border-radius: 50%; }
.symbol-nodes i { position: absolute; z-index: 2; width: 14px; height: 14px; background: var(--teal); border: 4px solid #d8ece4; border-radius: 50%; }
.symbol-nodes i:nth-child(1) { top: 38px; left: 48px; }
.symbol-nodes i:nth-child(2) { top: 88px; right: 54px; }
.symbol-nodes i:nth-child(3) { right: 82px; bottom: 28px; }
.symbol-nodes span { position: absolute; top: 53px; left: 58px; width: 150px; height: 70px; border-top: 1px dashed var(--teal); border-right: 1px dashed var(--teal); transform: rotate(13deg); }
.symbol-stack i { position: absolute; left: 50%; width: 148px; height: 48px; border: 1px solid rgba(16,43,55,.16); border-radius: 9px; background: rgba(255,255,255,.72); transform: translateX(-50%) skewY(-5deg); box-shadow: 0 8px 20px rgba(16,43,55,.06); }
.symbol-stack i:nth-child(1) { top: 32px; z-index: 3; border-color: rgba(30,155,116,.5); }
.symbol-stack i:nth-child(2) { top: 58px; z-index: 2; }
.symbol-stack i:nth-child(3) { top: 84px; z-index: 1; }
.symbol-scan i { position: absolute; top: 32px; bottom: 32px; width: 62px; border: 1px solid rgba(16,43,55,.15); border-radius: 12px; background: rgba(255,255,255,.5); }
.symbol-scan i:first-child { left: 55px; }
.symbol-scan i:nth-child(2) { right: 55px; }
.symbol-scan span { position: absolute; z-index: 3; top: 50%; left: 38px; right: 38px; height: 2px; background: var(--teal); box-shadow: 0 0 18px rgba(30,155,116,.6); animation: scan 3s ease-in-out infinite; }
.card-kicker { margin: 0 0 12px; color: var(--teal-dark); font-size: 9px; font-weight: 800; letter-spacing: .17em; }
.card-content h3 { margin: 0; font-size: 25px; letter-spacing: -.03em; }
.card-content > p:not(.card-kicker) { min-height: 80px; margin: 16px 0 22px; color: var(--ink-soft); font-size: 14px; line-height: 1.8; }
.card-content ul { display: grid; gap: 10px; margin: 0; padding: 20px 0 0; border-top: 1px solid var(--line); list-style: none; }
.card-content li { display: flex; align-items: center; gap: 9px; color: #3b535c; font-size: 12px; }
.card-content li::before { content: ""; width: 5px; height: 5px; border: 1px solid var(--teal); border-radius: 50%; }

.method { color: #eef5f1; background: var(--ink); }
.method-shell { display: grid; grid-template-columns: .75fr 1.25fr; gap: 100px; }
.eyebrow-light { color: #63c7a3; }
.method-copy { position: sticky; top: 120px; align-self: start; }
.method-copy h2 { font-size: clamp(42px, 5vw, 64px); line-height: 1.18; }
.method-copy > p:last-child { max-width: 430px; margin: 28px 0 0; color: #a9bbb6; font-size: 15px; line-height: 1.9; }
.method-list { margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.16); list-style: none; }
.method-list li { display: grid; grid-template-columns: 50px 1fr auto; gap: 24px; align-items: center; min-height: 150px; border-bottom: 1px solid rgba(255,255,255,.16); }
.method-number { align-self: start; padding-top: 42px; color: #63c7a3; font-size: 10px; font-weight: 800; letter-spacing: .14em; }
.method-list h3 { margin: 0 0 10px; font-size: 24px; letter-spacing: -.02em; }
.method-list p { margin: 0; color: #9eb1ac; font-size: 13px; }
.method-tag { padding: 7px 10px; color: #7f9690; border: 1px solid rgba(255,255,255,.15); border-radius: 999px; font-size: 8px; letter-spacing: .14em; }

.about-heading > p { font-size: 16px; }
.principle-grid { display: grid; grid-template-columns: 1.3fr .85fr; grid-template-rows: 1fr 1fr; gap: 18px; }
.principle-card { position: relative; overflow: hidden; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,254,249,.68); }
.principle-main { grid-row: 1 / 3; min-height: 600px; display: flex; flex-direction: column; justify-content: space-between; background: var(--teal-pale); }
.principle-main::after { content: "Y"; position: absolute; right: -30px; bottom: -140px; color: rgba(15,90,70,.07); font-size: 440px; line-height: 1; font-weight: 900; transform: rotate(-9deg); }
.principle-label { position: relative; z-index: 2; color: var(--teal-dark); font-size: 9px; font-weight: 800; letter-spacing: .16em; }
.principle-main blockquote { position: relative; z-index: 2; margin: auto 0; font-size: clamp(48px, 5.5vw, 72px); line-height: 1.22; font-weight: 700; letter-spacing: -.055em; }
.principle-main blockquote em { color: var(--teal-dark); font-style: normal; }
.principle-main p { position: relative; z-index: 2; max-width: 440px; margin: 0; color: #486760; font-size: 14px; line-height: 1.8; }
.principle-detail { min-height: 291px; }
.principle-detail h3 { margin: 30px 0 10px; font-size: 24px; }
.principle-detail p { max-width: 360px; margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.clarity-demo { position: absolute; right: 30px; bottom: 28px; width: 112px; height: 78px; }
.clarity-demo i { display: block; height: 5px; margin-bottom: 9px; background: var(--paper-deep); border-radius: 4px; }
.clarity-demo i:first-child { width: 88%; background: var(--teal); }
.clarity-demo i:nth-child(2) { width: 66%; }
.clarity-demo i:nth-child(3) { width: 42%; }
.clarity-demo span { position: absolute; right: 0; bottom: 0; width: 28px; height: 28px; border: 1px solid var(--teal); border-radius: 50%; }
.principle-dark { color: white; background: var(--ink); }
.principle-dark .principle-label { color: #63c7a3; }
.principle-dark p { color: #a9bbb6; }
.reliability-demo { position: absolute; right: 35px; bottom: 30px; width: 90px; height: 56px; }
.reliability-demo span { position: absolute; inset: 0; border: 1px solid rgba(99,199,163,.3); border-radius: 50%; }
.reliability-demo i { position: absolute; top: 50%; left: 50%; width: 12px; height: 12px; background: #63c7a3; border-radius: 50%; transform: translate(-50%,-50%); box-shadow: 0 0 0 9px rgba(99,199,163,.1), 0 0 0 18px rgba(99,199,163,.05); }

.closing { position: relative; overflow: hidden; padding: 120px 0; color: white; background: #0a7056; }
.closing::before { content: ""; position: absolute; inset: 0; opacity: .13; background-image: linear-gradient(rgba(255,255,255,.25) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.25) 1px, transparent 1px); background-size: 64px 64px; }
.closing-inner { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; }
.closing h2 { font-size: clamp(48px, 6vw, 78px); line-height: 1.18; }
.closing-mark { display: grid; place-items: center; width: 110px; height: 110px; margin-top: 52px; color: #0a7056; background: #d9efe6; border-radius: 28px; transform: rotate(45deg); box-shadow: 0 20px 60px rgba(0,0,0,.15); }
.closing-mark span { font-size: 50px; font-weight: 900; transform: rotate(-45deg); }

.site-footer { padding: 34px 0; background: #082e35; color: #d8e4e1; }
.footer-inner { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 20px; text-align: center; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.brand-mark-small { width: 30px; color: var(--ink); background: #65caa6; border-radius: 7px; }
.brand-mark-small span { font-size: 14px; }
.footer-brand div { display: grid; gap: 3px; }
.footer-brand strong { font-size: 16px; letter-spacing: -.02em; }
.footer-brand div span { color: #8fa6a2; font-size: 10px; }
.footer-legal { display: flex; align-items: center; justify-content: center; gap: 24px; color: #8fa6a2; font-size: 11px; text-align: center; }
.footer-legal a { color: #bcd0cb; text-underline-offset: 4px; }
.footer-legal a:hover { color: white; }

.error-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.error-page main { max-width: 620px; text-align: center; }
.error-page small { color: var(--teal-dark); font-weight: 800; letter-spacing: .16em; }
.error-page h1 { margin: 18px 0 14px; font-size: clamp(46px, 10vw, 86px); letter-spacing: -.06em; }
.error-page p { color: var(--ink-soft); line-height: 1.8; }
.error-page a { display: inline-block; margin-top: 24px; padding: 13px 20px; border-radius: 11px; background: var(--ink); color: white; text-decoration: none; font-weight: 700; }

[data-reveal] { opacity: 1; transform: none; transition: opacity .7s ease, transform .7s ease; }
[data-reveal].reveal-ready { opacity: 0; transform: translateY(24px); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(30,155,116,0); } }
@keyframes scan { 0%, 100% { transform: translateY(-34px); opacity: .35; } 50% { transform: translateY(34px); opacity: 1; } }

@media (max-width: 980px) {
  :root { --shell: min(100% - 36px, 760px); }
  .hero { padding-top: 130px; }
  .hero-grid { grid-template-columns: 1fr; gap: 60px; }
  .hero-copy { max-width: 720px; }
  .hero-console { min-height: 520px; }
  .section-heading { grid-template-columns: 1fr; gap: 28px; }
  .section-heading > p { max-width: 560px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: auto; display: grid; grid-template-columns: .65fr 1.35fr; gap: 32px; align-items: center; }
  .capability-card .card-index { position: absolute; top: 26px; left: 28px; }
  .card-symbol { margin: 40px 0 0; }
  .card-content > p:not(.card-kicker) { min-height: 0; }
  .method-shell { grid-template-columns: 1fr; gap: 70px; }
  .method-copy { position: static; }
  .principle-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto auto; }
  .principle-main { grid-column: 1 / 3; grid-row: auto; min-height: 500px; }
  .footer-legal { gap: 18px; }
}

@media (max-width: 680px) {
  :root { --shell: calc(100% - 32px); --radius: 20px; }
  html { scroll-padding-top: 72px; }
  .site-header { height: 68px; }
  .brand-cn { display: none; }
  .menu-toggle { position: relative; z-index: 102; display: grid; gap: 6px; width: 44px; height: 44px; padding: 12px; }
  .menu-toggle span:not(.sr-only) { display: block; width: 20px; height: 2px; background: var(--ink); transition: transform .2s ease; }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(4px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-4px) rotate(-45deg); }
  .site-nav { position: fixed; inset: 0; z-index: 101; display: flex; flex-direction: column; justify-content: center; gap: 34px; visibility: hidden; opacity: 0; background: var(--paper); transition: opacity .2s ease, visibility .2s ease; }
  .site-nav.is-open { visibility: visible; opacity: 1; }
  .site-nav a { font-size: 26px; }
  .hero { min-height: auto; padding: 118px 0 70px; }
  .hero::before { background-size: 48px 48px; }
  .hero h1 { font-size: clamp(42px, 12vw, 54px); line-height: 1.12; }
  .hero-lead { margin-top: 24px; font-size: 15px; line-height: 1.8; }
  .hero-actions { align-items: stretch; flex-direction: column; margin-top: 30px; }
  .button { width: 100%; }
  .hero-note { justify-content: center; margin-top: 28px; }
  .hero-console { min-height: 420px; padding: 12px; border-radius: 22px; }
  .console-stage { min-height: 340px; }
  .orbit-one { width: 230px; height: 230px; }
  .orbit-two { width: 330px; height: 330px; }
  .stage-core { width: 140px; height: 140px; }
  .stage-core strong { font-size: 23px; }
  .float-card { min-width: 112px; padding: 11px; }
  .card-define { top: 26px; left: 16px; }
  .card-build { top: 82px; right: 12px; }
  .card-verify { right: 26px; bottom: 22px; }
  .intro-band-inner { grid-template-columns: 1fr; gap: 28px; min-height: auto; padding-block: 60px; }
  .intro-statement { padding: 28px 0 0; border-top: 1px solid var(--line); border-left: 0; }
  .intro-statement strong { font-size: 24px; }
  .section { padding: 92px 0; }
  .section-heading { margin-bottom: 42px; }
  .section-heading h2, .method-copy h2 { font-size: 40px; }
  .capability-card { display: block; min-height: auto; padding: 24px; }
  .capability-card .card-index { top: 24px; left: 24px; }
  .card-symbol { height: 145px; margin: 40px 0 28px; }
  .method-shell { gap: 48px; }
  .method-list li { grid-template-columns: 38px 1fr; gap: 12px; min-height: 136px; }
  .method-tag { display: none; }
  .method-number { padding-top: 39px; }
  .method-list p { line-height: 1.6; }
  .principle-grid { display: grid; grid-template-columns: 1fr; }
  .principle-main { grid-column: auto; min-height: 470px; }
  .principle-main blockquote { font-size: 48px; }
  .principle-detail { min-height: 270px; }
  .closing { padding: 92px 0; }
  .closing h2 { font-size: 45px; }
  .closing-mark { width: 84px; height: 84px; border-radius: 22px; }
  .closing-mark span { font-size: 40px; }
  .footer-legal { flex-direction: column; gap: 9px; }
}

@media (max-width: 340px) {
  .hero h1 { font-size: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

@media (prefers-contrast: more) {
  :root { --line: rgba(16,43,55,.38); --ink-soft: #334b54; }
}