:root {
  --ink: #102b29;
  --muted: #637975;
  --line: #d7e5df;
  --paper: #f8fbf9;
  --mint: #eaf5ef;
  --teal: #0b7f6b;
  --cyan: #32c8ba;
  --deep: #043b38;
  --night: #052e35;
  --gold: #f1cf68;
  --gold-deep: #d7ad35;
  --shadow: 0 24px 70px rgba(7, 63, 54, .12);
  --radius: 28px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif; overflow-x: hidden; }
body, a, button { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; -webkit-user-drag: none; user-drag: none; -webkit-touch-callout: none; user-select: none; pointer-events: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.shell { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.section { position: relative; padding: 104px 0; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 1000; padding: 10px 16px; border-radius: 10px; background: white; }
.skip-link:focus { top: 12px; }
.protected-media { position: relative; isolation: isolate; -webkit-touch-callout: none; user-select: none; }
.protected-media::after { content: ""; position: absolute; inset: 0; z-index: 5; background: transparent; -webkit-touch-callout: none; }

.eyebrow { margin: 0 0 18px; color: var(--teal); font-size: 13px; font-weight: 800; letter-spacing: .24em; line-height: 1.45; text-transform: uppercase; }
.eyebrow-gold { color: var(--gold); }
.eyebrow i { display: inline-block; width: 9px; height: 9px; margin-right: 10px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 8px rgba(241, 207, 104, .12); }
.section-head { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); gap: 68px; align-items: end; margin-bottom: 50px; }
.section-head h2 { margin: 0; font-size: clamp(36px, 4.4vw, 62px); letter-spacing: -.045em; line-height: 1.12; }
.section-head h2 span { display: block; margin-top: 7px; color: var(--teal); }
.section-head > p { margin: 0; color: var(--muted); font-size: 18px; line-height: 1.9; }
.section-head-light h2, .section-head-light > p { color: white; }
.section-head-light h2 span { color: var(--gold); }
.section-head-light > p { color: rgba(225, 241, 235, .72); }

.hero { position: relative; min-height: min(900px, 100svh); padding: 96px 0 88px; overflow: hidden; color: white; background: radial-gradient(circle at 86% 20%, #0b6a60 0, transparent 32%), linear-gradient(138deg, #031f26 0%, #043b38 58%, #075341 100%); }
.mesh, .hero .mesh { position: absolute; inset: 0; opacity: .13; background-image: linear-gradient(rgba(255,255,255,.16) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.16) 1px, transparent 1px); background-size: 52px 52px; mask-image: linear-gradient(to bottom, #000, transparent 82%); }
.orb { position: absolute; border: 1px solid rgba(89, 226, 196, .25); border-radius: 50%; }
.orb-a { width: 520px; height: 520px; right: -150px; top: -110px; }
.orb-b { width: 760px; height: 760px; left: -450px; bottom: -540px; }
.hero-layout { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, .96fr) minmax(460px, 1.04fr); gap: 56px; align-items: center; }
.hero-copy { padding: 12px 0; }
.hero h1 { margin: 0; line-height: 1.05; letter-spacing: -.055em; }
.hero h1 small { display: block; margin-bottom: 28px; color: rgba(225, 244, 238, .84); font-size: 18px; font-weight: 650; letter-spacing: .02em; }
.hero h1 span, .hero h1 em { display: block; font-size: clamp(45px, 5.2vw, 74px); font-style: normal; font-weight: 850; }
.hero h1 em { margin-top: 10px; color: var(--gold); }
.hero-lead { max-width: 660px; margin: 30px 0 0; color: rgba(224, 241, 236, .76); font-size: 18px; line-height: 1.9; }
.hero-actions { display: flex; gap: 14px; margin-top: 34px; }
.button { display: inline-flex; min-height: 54px; padding: 0 26px; align-items: center; justify-content: center; gap: 24px; border: 1px solid rgba(255,255,255,.26); border-radius: 18px; font-weight: 750; }
.button-gold { color: #13312d; border-color: var(--gold); background: linear-gradient(135deg, #ffe594, var(--gold)); box-shadow: 0 14px 35px rgba(215, 173, 53, .22); }
.button-ghost { background: rgba(255,255,255,.045); backdrop-filter: blur(12px); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 25px; }
.hero-tags span { padding: 8px 13px; border: 1px solid rgba(132, 217, 191, .24); border-radius: 999px; color: rgba(226, 242, 237, .76); font-size: 13px; }
.hero-visual { position: relative; min-height: 580px; }
.dashboard-frame { position: absolute; width: 92%; right: 0; top: 58px; padding: 12px; border: 1px solid rgba(106, 228, 202, .36); border-radius: 24px; background: rgba(3, 24, 29, .76); box-shadow: 0 38px 90px rgba(0,0,0,.34); transform: perspective(1100px) rotateY(-4deg); }
.dashboard-frame img { width: 100%; border-radius: 14px; }
.mobile-frame { position: absolute; width: 166px; left: 0; bottom: 3px; padding: 10px; border: 1px solid rgba(255,255,255,.35); border-radius: 34px; background: #091d20; box-shadow: 0 24px 50px rgba(0,0,0,.35); transform: rotate(-5deg); }
.mobile-frame img { width: 100%; border-radius: 24px; }
.data-badge { position: absolute; right: 22px; bottom: 31px; display: grid; grid-template-columns: 38px 1fr; gap: 2px 12px; min-width: 220px; padding: 16px 18px; border: 1px solid rgba(241, 207, 104, .5); border-radius: 16px; background: rgba(2, 47, 48, .88); backdrop-filter: blur(12px); }
.data-badge i { grid-row: 1 / 3; align-self: center; width: 34px; height: 34px; border: 1px solid var(--gold); border-radius: 50%; box-shadow: inset 0 0 0 9px rgba(241,207,104,.08); }
.data-badge span { color: rgba(255,255,255,.68); font-size: 13px; }
.data-badge b { color: white; font-size: 16px; }
.scroll-cue { position: absolute; z-index: 3; bottom: 26px; left: 50%; display: grid; justify-items: center; gap: 6px; transform: translateX(-50%); color: rgba(255,255,255,.56); font-size: 12px; letter-spacing: .14em; }
.scroll-cue i { width: 1px; height: 32px; background: linear-gradient(var(--gold), transparent); animation: scrollCue 1.9s ease-in-out infinite; }
@keyframes scrollCue { 50% { transform: translateY(8px); opacity: .45; } }

.metric-strip { position: relative; z-index: 6; margin-top: -1px; border-bottom: 1px solid var(--line); background: white; }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.metric { position: relative; padding: 34px 28px; text-align: center; }
.metric + .metric::before { content: ""; position: absolute; left: 0; top: 29%; bottom: 29%; width: 1px; background: var(--line); }
.metric strong { color: var(--deep); font-size: 36px; line-height: 1; }
.metric strong i { margin-left: 4px; color: var(--teal); font-size: 17px; font-style: normal; }
.metric span { display: block; margin-top: 9px; color: var(--muted); font-size: 14px; }

.overview-section { background: linear-gradient(180deg, white, #f2f8f5); }
.challenge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.challenge-card { position: relative; min-height: 230px; padding: 26px; overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: rgba(255,255,255,.82); transition: transform .25s ease, box-shadow .25s ease; }
.challenge-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.challenge-card b { display: inline-grid; width: 48px; height: 48px; place-items: center; border-radius: 14px; color: var(--teal); background: var(--mint); font-size: 15px; }
.challenge-card h3 { margin: 28px 0 9px; font-size: 22px; }
.challenge-card p { margin: 0; color: var(--muted); line-height: 1.75; }
.challenge-card::after { content: ""; position: absolute; width: 120px; height: 120px; right: -70px; bottom: -65px; border: 1px solid #cae5da; border-radius: 50%; }
.goal-board { display: grid; grid-template-columns: 1fr 1.2fr; gap: 54px; align-items: center; margin-top: 28px; padding: 44px; color: white; border-radius: var(--radius); background: linear-gradient(135deg, var(--night), var(--deep)); box-shadow: var(--shadow); }
.goal-board h3 { margin: 0; font-size: clamp(30px, 4vw, 48px); line-height: 1.15; }
.goal-board h3 span { display: block; margin-top: 7px; color: var(--gold); }
.goal-board p:not(.eyebrow) { margin: 18px 0 0; color: rgba(222,240,234,.7); line-height: 1.8; }
.goal-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.goal-list span { padding: 18px; border: 1px solid rgba(130,221,195,.18); border-radius: 17px; color: rgba(230,244,239,.72); font-size: 14px; background: rgba(255,255,255,.035); }
.goal-list b { display: block; margin-bottom: 7px; color: white; font-size: 18px; }

.architecture-section { color: white; background: linear-gradient(160deg, #062b32, #073f3b 68%, #0a5043); }
.flow-grid { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.flow-card { position: relative; min-height: 240px; padding: 20px; border: 1px solid rgba(136,220,199,.18); border-radius: 22px; background: rgba(255,255,255,.045); }
.flow-card:not(:last-child)::after { content: "→"; position: absolute; z-index: 3; right: -20px; top: 50%; display: grid; width: 27px; height: 27px; place-items: center; border-radius: 50%; color: #173d38; background: var(--gold); transform: translateY(-50%); }
.flow-card b { color: var(--gold); font-size: 13px; letter-spacing: .14em; }
.flow-card i { display: grid; width: 66px; height: 66px; margin-top: 18px; place-items: center; border: 1px solid rgba(80,216,182,.32); border-radius: 21px; color: var(--cyan); background: rgba(11,127,107,.14); font-size: 29px; font-style: normal; font-weight: 800; }
.flow-card h3 { margin: 20px 0 8px; font-size: 22px; }
.flow-card p { margin: 0; color: rgba(220,238,232,.66); font-size: 14px; line-height: 1.7; }
.system-map { margin-top: 36px; padding: 18px; border: 1px solid rgba(132,225,202,.22); border-radius: var(--radius); background: white; box-shadow: 0 25px 75px rgba(0,0,0,.2); }
.system-map img { width: 100%; border-radius: 15px; }
.system-map span { display: block; padding: 18px 10px 2px; color: #456a63; text-align: center; font-weight: 700; }

.terminal-section { padding-bottom: 82px; background: #eff7f3; }
.terminal-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: center; }
.terminal-copy h2 { margin: 0; font-size: clamp(38px, 4.6vw, 62px); line-height: 1.1; }
.terminal-copy h2 span { display: block; margin-top: 8px; color: var(--teal); }
.terminal-copy > p:not(.eyebrow) { color: var(--muted); font-size: 18px; line-height: 1.85; }
.terminal-copy ul { margin: 26px 0 0; padding: 0; list-style: none; }
.terminal-copy li { position: relative; padding: 14px 0 14px 32px; border-bottom: 1px solid var(--line); color: var(--muted); line-height: 1.6; }
.terminal-copy li::before { content: ""; position: absolute; left: 4px; top: 22px; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 7px rgba(50,200,186,.1); }
.terminal-copy li b { color: var(--ink); }
.terminal-visual { position: relative; min-height: 458px; padding: 30px 16px 54px 64px; overflow: hidden; border: 1px solid #cde2da; border-radius: 30px; background: radial-gradient(circle at 86% 12%, rgba(50,200,186,.16), transparent 34%), rgba(255,255,255,.66); box-shadow: 0 22px 55px rgba(6,65,53,.1); }
.terminal-screen-main { position: relative; z-index: 1; width: 100%; padding: 11px; border: 1px solid rgba(31,107,96,.25); border-radius: 24px; background: var(--night); box-shadow: 0 22px 48px rgba(3,40,46,.2); }
.terminal-screen-main img { width: 100%; border-radius: 14px; }
.terminal-screen-mobile { position: absolute; z-index: 3; width: 142px; left: 15px; bottom: 29px; padding: 8px; border: 1px solid #bad8cd; border-radius: 28px; background: white; box-shadow: 0 18px 42px rgba(5,53,48,.22); transform: rotate(-2deg); }
.terminal-screen-mobile img { width: 100%; border-radius: 20px; }
.terminal-visual-caption { position: absolute; z-index: 4; right: 21px; bottom: 17px; display: flex; gap: 9px; align-items: center; color: #55716b; font-size: 12px; font-weight: 700; letter-spacing: .03em; }
.terminal-visual-caption i { width: 20px; height: 1px; background: #90b8ad; }

.platform-section { background: white; }
.click-guide { display: inline-flex; gap: 13px; align-items: center; margin: -10px 0 18px; padding: 11px 16px; border: 1px solid #cbe1d8; border-radius: 16px; color: var(--deep); background: #f1f8f5; }
.click-guide > span { display: grid; width: 34px; height: 34px; place-items: center; border-radius: 50%; color: white; background: var(--teal); font-size: 20px; animation: hint 1.7s ease-in-out infinite; }
.click-guide strong, .click-guide small { display: block; }
.click-guide small { margin-top: 2px; color: var(--muted); }
@keyframes hint { 50% { transform: translate(2px, 3px); } }
.tab-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; padding: 13px; border: 1px solid var(--line); border-radius: 24px; background: #f2f7f4; }
.tab-button { min-height: 76px; padding: 14px 18px; border: 1px solid transparent; border-radius: 18px; color: #71827e; background: transparent; text-align: left; cursor: pointer; transition: .2s ease; }
.tab-button small { display: block; margin-bottom: 7px; color: #9aada8; font-size: 11px; font-weight: 800; letter-spacing: .16em; }
.tab-button strong { font-size: 17px; }
.tab-button[aria-selected="true"] { color: white; background: linear-gradient(135deg, var(--deep), var(--teal)); box-shadow: 0 10px 24px rgba(11,127,107,.2); }
.tab-button[aria-selected="true"] small { color: var(--gold); }
.feature-panel { display: grid; grid-template-columns: .84fr 1.16fr; gap: 42px; align-items: center; margin-top: 14px; padding: 40px; border: 1px solid var(--line); border-radius: var(--radius); background: #fbfdfc; box-shadow: var(--shadow); }
.feature-copy h3 { margin: 0; font-size: clamp(28px, 3.4vw, 44px); line-height: 1.15; }
.feature-copy > p:not(.eyebrow) { margin: 18px 0; color: var(--muted); font-size: 17px; line-height: 1.85; }
.feature-copy ul { margin: 22px 0 0; padding: 0; list-style: none; }
.feature-copy li { position: relative; margin: 13px 0; padding-left: 27px; color: #526a65; line-height: 1.65; }
.feature-copy li::before { content: ""; position: absolute; left: 1px; top: .55em; width: 8px; height: 8px; border-radius: 50%; background: #29b88d; box-shadow: 0 0 0 6px #e1f4ec; }
.feature-image { position: relative; min-height: 360px; display: grid; place-items: center; overflow: hidden; border-radius: 20px; background: #edf6f2; }
.feature-image img { width: 100%; max-height: 430px; object-fit: contain; }
.feature-image span { position: absolute; z-index: 7; left: 14px; bottom: 14px; padding: 8px 12px; border-radius: 999px; color: white; background: rgba(3,50,48,.78); backdrop-filter: blur(8px); font-size: 12px; }

.ai-section { color: white; overflow: hidden; background: radial-gradient(circle at 75% 30%, #12665c, transparent 34%), linear-gradient(140deg, #031f28, #063c3b); }
.ai-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.ai-copy h2 { margin: 0; font-size: clamp(38px, 4.8vw, 62px); line-height: 1.12; }
.ai-copy h2 span { display: block; margin-top: 7px; color: var(--gold); }
.ai-copy > p:not(.eyebrow) { color: rgba(223,240,234,.7); font-size: 18px; line-height: 1.85; }
.sense-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 28px 0; }
.sense-grid span { padding: 17px; border: 1px solid rgba(120,224,197,.18); border-radius: 17px; color: rgba(226,242,237,.72); background: rgba(255,255,255,.04); }
.sense-grid b { margin-right: 7px; color: var(--gold); font-size: 22px; }
.ai-copy > small { color: rgba(223,240,234,.52); line-height: 1.7; }
.ai-visual { padding: 20px; border: 1px solid rgba(100,222,197,.24); border-radius: 30px; background: rgba(255,255,255,.055); box-shadow: 0 30px 80px rgba(0,0,0,.24); }
.ai-visual img { width: 100%; border-radius: 18px; }

.cooperation-section { color: white; background: #073c35; }
.cooperation-layout { display: grid; grid-template-columns: .86fr 1.14fr; gap: 28px; align-items: stretch; }
.cooperation-list { display: grid; gap: 9px; }
.cooperation-item { display: grid; grid-template-columns: 44px 1fr; gap: 13px; align-items: center; padding: 15px; border: 1px solid rgba(137,222,198,.16); border-radius: 17px; background: rgba(255,255,255,.04); }
.cooperation-item b { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 13px; color: var(--gold); background: rgba(241,207,104,.09); }
.cooperation-item h3 { margin: 0; font-size: 16px; }
.cooperation-item p { margin: 4px 0 0; color: rgba(223,240,234,.6); font-size: 13px; line-height: 1.55; }
.cooperation-visual { display: flex; flex-direction: column; overflow: hidden; border: 1px solid rgba(137,222,198,.2); border-radius: 28px; background: #06282f; }
.cooperation-visual img { width: 100%; flex: 1; object-fit: cover; }
.cooperation-visual > div { position: relative; z-index: 7; display: flex; flex-wrap: wrap; gap: 9px; align-items: center; justify-content: center; padding: 21px; color: rgba(230,244,239,.7); }
.cooperation-visual > div span { padding: 7px 11px; border: 1px solid rgba(255,255,255,.15); border-radius: 999px; }
.cooperation-visual > div i { color: var(--gold); font-style: normal; }
.cooperation-visual > div b { width: 100%; color: white; text-align: center; font-size: 19px; }

.case-section { background: linear-gradient(180deg, white, #eff7f3); }
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.case-card { overflow: hidden; border: 1px solid var(--line); border-radius: 26px; background: white; box-shadow: 0 15px 45px rgba(6,65,53,.08); }
.case-card figure { position: relative; height: 290px; margin: 0; overflow: hidden; background: #eaf3ef; }
.case-card figure img { width: 100%; height: 100%; object-fit: cover; }
.case-card figure::after { content: ""; position: absolute; inset: auto 0 0; height: 42%; background: linear-gradient(transparent, rgba(1,32,29,.68)); }
.case-card figure span { position: absolute; z-index: 7; left: 18px; bottom: 18px; padding: 7px 11px; border: 1px solid rgba(255,255,255,.24); border-radius: 999px; color: white; background: rgba(3,54,47,.7); font-size: 12px; }
.case-card > div { padding: 24px; }
.case-card h3 { margin: 0 0 8px; font-size: 23px; }
.case-card p { margin: 0; color: var(--muted); line-height: 1.75; }

.closing-section { position: relative; overflow: hidden; padding: 104px 0; color: white; background: linear-gradient(140deg, #031f28, #064b3e); }
.closing-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.closing-copy h2 { margin: 0; font-size: clamp(40px, 5.2vw, 68px); line-height: 1.1; letter-spacing: -.04em; }
.closing-copy h2 span { display: block; margin-top: 8px; color: var(--gold); }
.closing-copy > p:not(.eyebrow) { color: rgba(225,241,236,.68); font-size: 18px; line-height: 1.85; }
.contact-list { display: grid; gap: 11px; }
.contact-item { display: grid; grid-template-columns: 46px 1fr auto; gap: 13px; align-items: center; min-height: 78px; padding: 14px 16px; border: 1px solid rgba(139,221,199,.22); border-radius: 18px; background: rgba(255,255,255,.04); }
.contact-item > i { display: grid; width: 43px; height: 43px; place-items: center; border: 1px solid rgba(107,221,192,.36); border-radius: 50%; color: #8ce2ca; font-style: normal; }
.contact-item span small, .contact-item span strong { display: block; }
.contact-item span small { color: rgba(224,241,235,.53); font-size: 11px; letter-spacing: .09em; }
.contact-item span strong { margin-top: 5px; font-size: 17px; }
.contact-item > b, .contact-item button { color: #d8eee7; }
.contact-item button { padding: 8px 14px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; background: rgba(255,255,255,.07); cursor: pointer; }
.contact-primary { color: #123028; border-color: var(--gold); background: linear-gradient(135deg, #ffe592, var(--gold)); }
.contact-primary > i { color: #17483c; border-color: rgba(20,72,60,.23); }
.contact-primary span small { color: rgba(18,48,40,.64); }
.contact-primary > b { color: #123028; }
footer { padding: 34px 0; color: rgba(226,240,235,.68); background: #021c22; text-align: center; }
.footer-inner strong { color: white; }
.footer-inner p { margin: 8px 0; font-size: 14px; }
.footer-inner small { font-size: 12px; }
.back-top { position: fixed; z-index: 30; right: max(18px, env(safe-area-inset-right)); bottom: max(20px, env(safe-area-inset-bottom)); display: grid; width: 52px; height: 52px; place-items: center; border: 1px solid rgba(255,255,255,.25); border-radius: 50%; color: white; background: rgba(4,75,62,.92); box-shadow: 0 12px 28px rgba(0,0,0,.18); opacity: 0; transform: translateY(20px); pointer-events: none; transition: .2s; }
.back-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.toast { position: fixed; z-index: 60; left: 50%; bottom: calc(28px + env(safe-area-inset-bottom)); padding: 11px 18px; border-radius: 999px; color: white; background: rgba(2,34,32,.92); opacity: 0; transform: translate(-50%, 12px); pointer-events: none; transition: .2s; }
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.noscript { padding: 12px; color: white; background: #9b2e2e; text-align: center; }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

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

@media (max-width: 900px) {
  .section { padding: 78px 0; }
  .section-head { grid-template-columns: 1fr; gap: 20px; margin-bottom: 38px; }
  .hero { min-height: auto; padding-top: 74px; }
  .hero-layout { grid-template-columns: 1fr; gap: 20px; }
  .hero-visual { min-height: 520px; }
  .dashboard-frame { width: 88%; }
  .challenge-grid { grid-template-columns: repeat(2, 1fr); }
  .goal-board, .terminal-layout, .ai-layout, .closing-inner { grid-template-columns: 1fr; }
  .flow-grid { grid-template-columns: repeat(5, minmax(160px, 1fr)); overflow-x: auto; padding-bottom: 10px; scroll-snap-type: x mandatory; }
  .flow-card { scroll-snap-align: start; }
  .feature-panel { grid-template-columns: 1fr; }
  .cooperation-layout { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  :root { --radius: 22px; }
  .shell { width: min(100% - 28px, 560px); }
  .section { padding: 60px 0; }
  .eyebrow { margin-bottom: 12px; font-size: 10px; letter-spacing: .22em; }
  .section-head { gap: 14px; margin-bottom: 28px; }
  .section-head h2 { font-size: 34px; line-height: 1.16; }
  .section-head > p { font-size: 15px; line-height: 1.75; }
  .hero { padding: 54px 0 48px; }
  .hero h1 small { margin-bottom: 18px; font-size: 14px; }
  .hero h1 span, .hero h1 em { font-size: 40px; line-height: 1.08; }
  .hero-lead { margin-top: 22px; font-size: 15px; line-height: 1.8; }
  .hero-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; margin-top: 25px; }
  .button { min-height: 50px; padding: 0 13px; gap: 9px; border-radius: 15px; font-size: 14px; }
  .hero-tags { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; margin-top: 17px; }
  .hero-tags span { padding: 7px 2px; text-align: center; font-size: 11px; }
  .hero-visual { min-height: 335px; margin-top: 2px; }
  .dashboard-frame { width: 93%; top: 30px; padding: 7px; border-radius: 17px; transform: none; }
  .dashboard-frame img { border-radius: 10px; }
  .mobile-frame { width: 90px; bottom: 6px; padding: 6px; border-radius: 20px; }
  .mobile-frame img { border-radius: 14px; }
  .data-badge { right: 5px; bottom: 8px; grid-template-columns: 29px 1fr; min-width: 168px; padding: 10px 12px; gap: 1px 8px; border-radius: 12px; }
  .data-badge i { width: 26px; height: 26px; box-shadow: inset 0 0 0 7px rgba(241,207,104,.08); }
  .data-badge span { font-size: 10px; }
  .data-badge b { font-size: 12px; }
  .scroll-cue { display: none; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .metric { padding: 21px 8px; }
  .metric:nth-child(3)::before { display: none; }
  .metric:nth-child(n+3) { border-top: 1px solid var(--line); }
  .metric strong { font-size: 29px; }
  .metric strong i { font-size: 14px; }
  .metric span { font-size: 12px; }
  .challenge-grid { grid-template-columns: 1fr 1fr; gap: 9px; }
  .challenge-card { min-height: 178px; padding: 17px; border-radius: 18px; }
  .challenge-card b { width: 38px; height: 38px; border-radius: 12px; font-size: 12px; }
  .challenge-card h3 { margin: 18px 0 6px; font-size: 17px; }
  .challenge-card p { font-size: 12px; line-height: 1.6; }
  .goal-board { gap: 27px; margin-top: 16px; padding: 25px 20px; }
  .goal-board h3 { font-size: 30px; }
  .goal-list { gap: 7px; }
  .goal-list span { padding: 13px; font-size: 11px; }
  .goal-list b { font-size: 15px; }
  .flow-grid { grid-template-columns: 1fr; overflow: visible; gap: 8px; }
  .flow-card { display: grid; grid-template-columns: 45px 52px 1fr; gap: 10px; min-height: 0; padding: 14px; align-items: center; }
  .flow-card:not(:last-child)::after { content: "↓"; right: 23px; top: auto; bottom: -17px; width: 24px; height: 24px; transform: none; font-size: 12px; }
  .flow-card b { font-size: 11px; }
  .flow-card i { width: 48px; height: 48px; margin: 0; border-radius: 15px; font-size: 20px; }
  .flow-card h3 { margin: 0; font-size: 19px; }
  .flow-card p { grid-column: 3; margin-top: -16px; font-size: 12px; }
  .system-map { margin-top: 24px; padding: 8px; }
  .system-map span { padding: 12px 7px 5px; font-size: 12px; }
  .terminal-layout { gap: 26px; }
  .terminal-copy h2, .ai-copy h2 { font-size: 34px; }
  .terminal-copy > p:not(.eyebrow), .ai-copy > p:not(.eyebrow) { font-size: 15px; }
  .terminal-copy li { padding-left: 27px; font-size: 13px; }
  .terminal-section { padding-bottom: 22px; }
  .platform-section { padding-top: 42px; }
  .terminal-visual { min-height: 0; padding: 14px 10px 42px 42px; border-radius: 22px; }
  .terminal-screen-main { width: 100%; padding: 6px; border-radius: 16px; }
  .terminal-screen-main img { border-radius: 10px; }
  .terminal-screen-mobile { width: 76px; left: 8px; bottom: 15px; padding: 4px; border-radius: 17px; transform: rotate(-2deg); }
  .terminal-screen-mobile img { border-radius: 12px; }
  .terminal-visual-caption { right: 12px; bottom: 13px; gap: 6px; font-size: 9px; }
  .terminal-visual-caption i { width: 11px; }
  .click-guide { margin-bottom: 11px; padding: 9px 12px; }
  .click-guide > span { width: 30px; height: 30px; font-size: 17px; }
  .click-guide strong { font-size: 13px; }
  .click-guide small { font-size: 11px; }
  .tab-grid { grid-template-columns: 1fr 1fr; gap: 7px; padding: 8px; border-radius: 19px; }
  .tab-button { min-height: 65px; padding: 11px 13px; border-radius: 14px; }
  .tab-button small { margin-bottom: 4px; font-size: 9px; }
  .tab-button strong { font-size: 15px; }
  .feature-panel { gap: 22px; margin-top: 9px; padding: 21px 17px 17px; border-radius: 21px; }
  .feature-copy h3 { font-size: 28px; }
  .feature-copy > p:not(.eyebrow) { margin: 13px 0; font-size: 14px; }
  .feature-copy ul { margin-top: 14px; }
  .feature-copy li { margin: 9px 0; padding-left: 23px; font-size: 12px; }
  .feature-image { min-height: 215px; border-radius: 16px; }
  .feature-image img { max-height: 270px; }
  .feature-image span { left: 9px; bottom: 9px; font-size: 10px; }
  .ai-layout { gap: 28px; }
  .sense-grid { gap: 7px; margin: 20px 0; }
  .sense-grid span { padding: 12px; font-size: 11px; }
  .sense-grid b { font-size: 18px; }
  .ai-visual { padding: 8px; border-radius: 20px; }
  .cooperation-layout { gap: 16px; }
  .cooperation-item { grid-template-columns: 38px 1fr; padding: 12px; }
  .cooperation-item b { width: 36px; height: 36px; }
  .cooperation-item h3 { font-size: 14px; }
  .cooperation-item p { font-size: 11px; }
  .cooperation-visual { border-radius: 20px; }
  .cooperation-visual > div { padding: 15px; font-size: 11px; }
  .cooperation-visual > div b { font-size: 15px; }
  .case-grid { grid-template-columns: 1fr; gap: 12px; }
  .case-card { border-radius: 20px; }
  .case-card figure { height: 220px; }
  .case-card > div { padding: 18px; }
  .case-card h3 { font-size: 19px; }
  .case-card p { font-size: 13px; }
  .closing-section { padding: 68px 0; }
  .closing-inner { gap: 32px; text-align: center; }
  .closing-copy h2 { font-size: 38px; }
  .closing-copy > p:not(.eyebrow) { font-size: 14px; }
  .contact-list { text-align: left; }
  .contact-item { grid-template-columns: 40px minmax(0, 1fr) auto; min-height: 70px; padding: 12px; }
  .contact-item > i { width: 38px; height: 38px; }
  .contact-item span strong { overflow-wrap: anywhere; font-size: 14px; }
  .contact-item > b { font-size: 12px; }
  footer { padding: 28px 0; }
}

@media (max-width: 370px) {
  .hero h1 span, .hero h1 em { font-size: 35px; }
  .hero-actions { grid-template-columns: 1fr; }
  .challenge-grid { grid-template-columns: 1fr; }
  .goal-list { grid-template-columns: 1fr; }
}