@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Noto+Sans+SC:wght@300;400;500;600&display=swap');

:root {
  --black: #050505;
  --ink: #111214;
  --white: #f4f4f1;
  --gray: #b9bbc0;
  --orange: #c46627;
  --orange-deep: #6f2f16;
}

* { box-sizing: border-box; }
html { background: var(--black); scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--black); color: var(--white); font-family: Inter, "Noto Sans SC", Arial, sans-serif; letter-spacing: -.035em; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.hero-logo-img { width: 38px; height: 38px; object-fit: contain; }
.service-logo-box img { width: 82%; height: 82%; object-fit: contain; }
.opening-web, .about-web { letter-spacing: -.035em; }

.reveal { opacity: 0; transform: translateY(54px); transition: opacity 1s cubic-bezier(.16,1,.3,1), transform 1s cubic-bezier(.16,1,.3,1); }
.reveal.visible { opacity: 1; transform: none; }

.system-section { position: relative; min-height: 1080px; padding: 54px clamp(42px, 7vw, 140px) 110px; overflow: hidden; background: #020202; }
.section-meta { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; border-bottom: 1px solid #303030; padding-bottom: 22px; color: #929292; font-size: 12px; letter-spacing: .08em; }
.section-meta span:nth-child(2) { text-align: center; }
.section-meta span:last-child { text-align: right; }
.system-watermark { margin-top: 30px; font-size: clamp(90px, 12vw, 230px); line-height: .8; font-weight: 300; letter-spacing: -.08em; color: transparent; background: linear-gradient(180deg,#8f8f92 0%,#313133 65%,#080808 100%); -webkit-background-clip: text; background-clip: text; }

.type-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr .85fr .85fr; gap: 70px; align-items: end; margin-top: 120px; }
.type-intro > p:first-child { margin: 0 0 26px; color: #7f7f82; font-size: 13px; letter-spacing: .1em; }
.type-intro h2 { margin: 0; max-width: 720px; font-size: clamp(64px, 7vw, 132px); line-height: .86; font-weight: 400; letter-spacing: -.075em; }
.type-note { max-width: 480px; margin: 54px 0 0; color: #969699; font-size: 16px; line-height: 1.75; letter-spacing: 0; }
.type-specimen { min-height: 510px; padding: 30px 0 0; border-top: 1px solid #4b4b4d; }
.type-specimen > span { color: #838386; font-size: 11px; letter-spacing: .12em; }
.type-specimen strong { display: block; margin: 58px 0 16px; font-size: clamp(105px, 10vw, 190px); line-height: .8; font-weight: 300; letter-spacing: -.09em; }
.type-specimen h3 { margin: 28px 0 70px; font-size: 26px; font-weight: 400; }
.type-specimen p { margin: 0; color: #8a8a8d; font-size: 13px; line-height: 1.8; letter-spacing: .02em; }
.type-specimen-cn strong { font-family: "Noto Sans SC", sans-serif; font-weight: 500; }

.color-section { min-height: 1300px; }
.color-stack { position: relative; z-index: 2; width: min(1040px, 78vw); margin: 90px 0 0 auto; }
.swatch { display: flex; justify-content: space-between; align-items: flex-end; min-height: 190px; padding: 34px 42px; border-radius: 34px 34px 0 0; margin-top: -22px; box-shadow: 0 -14px 40px rgba(0,0,0,.18); font-size: 12px; letter-spacing: .08em; }
.swatch b { font-size: 20px; font-weight: 400; letter-spacing: 0; }
.swatch-white { background: var(--white); color: #111; }
.swatch-gray { background: var(--gray); color: #181818; }
.swatch-orange { background: linear-gradient(90deg,#d98737,#7a3219); color: #fff; }
.swatch-black { background: #111; color: #e8e8e5; border: 1px solid #292929; }

.mockup-stage { position: relative; width: 100%; aspect-ratio: 4 / 3; min-height: 0; overflow: hidden; background: #050505; }
.stage-image { width: 100%; height: 100%; object-fit: cover; transform: scale(1.025); transition: transform 1.5s cubic-bezier(.16,1,.3,1); }
.mockup-stage.visible .stage-image { transform: scale(1); }
.stage-caption { position: absolute; z-index: 3; left: clamp(32px, 6vw, 120px); right: clamp(32px, 6vw, 120px); display: flex; justify-content: space-between; align-items: center; color: rgba(255,255,255,.72); font-size: 11px; letter-spacing: .08em; }
.stage-caption-bottom { bottom: 42px; border-top: 1px solid rgba(255,255,255,.24); padding-top: 18px; }
.stage-caption p { margin: 0; letter-spacing: 0; }

.laptop-stage .stage-image { filter: brightness(.92) contrast(1.04); }
.laptop-screen-ui { position: absolute; z-index: 3; left: 21.85%; top: 15.4%; width: 48.1%; height: 50.4%; overflow: hidden; color: #111; background: #edf0f1; transform: rotate(-4.6deg) skewX(-.45deg); transform-origin: 50% 50%; clip-path: polygon(1.6% 13%, 97.8% 0, 100% 89%, 2.6% 100%); }
.laptop-screen-ui::after { content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none; background: radial-gradient(circle at 55% 58%, rgba(0,0,0,.05), transparent 32%); }
.laptop-screen-ui header { position: relative; z-index: 4; display: grid; grid-template-columns: 26% 1fr 20%; align-items: center; gap: 2%; height: 16%; padding: 5.5% 7% 0; font-size: clamp(5px,.5vw,10px); }
.laptop-brand { display: flex; align-items: center; gap: 4%; font-size: clamp(7px,.7vw,14px); }
.laptop-brand img { width: 22%; max-height: 68%; object-fit: contain; object-position: left center; }
.laptop-brand b { white-space: nowrap; font-weight: 600; }
.laptop-screen-ui header nav { text-align: center; white-space: nowrap; }
.laptop-screen-ui header small { text-align: right; font-size: .72em; letter-spacing: .06em; }
.laptop-screen-copy { position: absolute; z-index: 4; left: 6%; top: 29%; width: 45%; }
.laptop-screen-copy > span { font-size: clamp(5px,.48vw,10px); letter-spacing: .04em; }
.laptop-screen-copy h2 { margin: 5% 0 4%; color: #101010; font-size: clamp(24px,3vw,60px); line-height: .86; font-weight: 600; letter-spacing: -.09em; }
.laptop-screen-copy p { margin: 0 0 9%; color: #2f3032; font-size: clamp(5px,.48vw,10px); line-height: 1.4; }
.laptop-screen-copy b { display: inline-block; padding: 4% 8%; border-radius: 999px; color: #fff; background: #050505; font-size: clamp(5px,.5vw,10px); font-weight: 500; }
.laptop-screen-person { position: absolute; z-index: 3; left: 30%; bottom: -17%; width: 60%; height: 93%; object-fit: contain; }
.laptop-screen-ui aside { position: absolute; z-index: 5; right: 5%; top: 28%; width: 27%; height: 23%; padding: 4%; border-radius: 16px; color: #fff; background: rgba(168,171,175,.78); backdrop-filter: blur(8px); }
.laptop-screen-ui aside span { display: block; margin-bottom: 14%; font-size: clamp(5px,.46vw,9px); }
.laptop-screen-ui aside strong { font-size: clamp(8px,.8vw,16px); line-height: 1.15; font-weight: 500; }

.phone-stage .stage-image { filter: brightness(.9) contrast(1.06); }
.phone-ui { position: absolute; z-index: 3; left: 0; top: 0; width: 100%; height: 100%; padding: 9% 10% 8%; overflow: hidden; color: #111; background: #eef0ef; transform-origin: 0 0; transform: matrix3d(.251798665,.031588175,0,.000053028,-.009456448,.656911431,0,-.000026131,0,0,1,0,535,165,0,1); border-radius: 64px; }
.phone-ui-top { display: flex; align-items: center; justify-content: space-between; }
.phone-ui-top img { width: 29%; height: auto; object-fit: contain; }
.phone-ui-top i { width: 18%; height: 2px; background: #222; box-shadow: 0 5px 0 #222; }
.phone-ui-kicker { margin-top: 12%; font-size: clamp(18px,1.7vw,34px); letter-spacing: .12em; }
.phone-ui h2 { margin: 5% 0 7%; font-size: clamp(62px,7.2vw,144px); line-height: .88; font-weight: 600; letter-spacing: -.09em; }
.phone-ui p { margin: 0; color: #5c5c5f; font-size: clamp(18px,1.75vw,35px); line-height: 1.75; letter-spacing: .02em; }
.phone-ui-band { position: absolute; left: 7%; right: 5%; bottom: 5%; height: 29%; display: flex; flex-direction: column; justify-content: space-between; padding: 9%; border-radius: 13%; color: #fff; background: #050505; }
.phone-ui-band span { color: #7e7e82; font-size: clamp(18px,1.7vw,34px); }
.phone-ui-band strong { font-size: clamp(48px,5.2vw,104px); line-height: 1.05; font-weight: 500; }

.page-chapter { position: relative; padding: 0 clamp(20px, 6vw, 120px) 170px; background: #000; }
.chapter-label { height: 340px; display: flex; align-items: flex-start; padding-top: 40px; color: transparent; background: linear-gradient(180deg,#707074 0%,#19191b 56%,#050505 100%); -webkit-background-clip: text; background-clip: text; font-size: clamp(100px, 13vw, 245px); line-height: .85; font-weight: 300; letter-spacing: -.09em; }
.site-frame { overflow: hidden; border: 2px solid rgba(196,102,39,.72); border-radius: 44px; background: var(--white); color: #0d0d0e; }
.site-hero { min-height: 980px; padding: 42px clamp(40px,5vw,90px) 70px; }
.site-nav { display: grid; grid-template-columns: 210px 1fr 210px; align-items: start; gap: 20px; font-size: 12px; }
.site-nav img { width: 160px; height: 62px; object-fit: contain; object-position: left center; }
.site-nav nav { display: flex; justify-content: center; gap: 42px; padding-top: 18px; }
.site-nav a { transition: opacity .25s ease; }
.site-nav a:hover { opacity: .45; }
.site-nav > span { padding-top: 16px; text-align: right; color: #777; line-height: 1.45; letter-spacing: .03em; }
.site-hero-grid { display: grid; grid-template-columns: 1fr .76fr; gap: 11vw; align-items: end; margin-top: 150px; }
.pill-label { display: inline-block; padding: 9px 15px; border-radius: 8px; background: #e8e8e5; font-size: 11px; letter-spacing: .07em; }
.site-hero-grid h2 { margin: 34px 0 0; font-size: clamp(72px, 7.2vw, 142px); line-height: .86; font-weight: 400; letter-spacing: -.08em; }
.site-hero-grid > p { max-width: 560px; margin: 0 0 22px; font-size: clamp(18px,1.45vw,27px); line-height: 1.55; color: #46464a; letter-spacing: -.02em; }
.statement-row { display: grid; grid-template-columns: repeat(4,1fr); margin-top: 110px; }
.statement-row span { display: grid; place-items: center; height: 178px; margin-left: -1px; border-radius: 88px; background: #e9e9e6; font-size: clamp(26px,3vw,54px); font-weight: 500; }
.statement-row span:nth-child(2) { color: #ffd070; background: linear-gradient(90deg,#d07a2e,#733018); }
.statement-row span:nth-child(3) { color: white; background: #050505; }
.statement-row span:nth-child(4) { color: #b2b2b5; }

.work-preview { padding: 60px clamp(40px,5vw,90px) 110px; text-align: center; }
.work-preview > h2 { margin: 24px 0 70px; font-size: clamp(64px,7vw,130px); line-height: .9; font-weight: 400; letter-spacing: -.08em; }
.work-card { min-height: 640px; display: grid; grid-template-columns: 1fr 1fr; align-items: end; padding: 55px; border-radius: 46px; color: #fff; text-align: left; background: radial-gradient(circle at 75% 30%,#242426 0,#090909 48%,#020202 100%); }
.work-card-copy span { color: #8b8b8f; font-size: 11px; letter-spacing: .1em; }
.work-card-copy h3 { margin: 28px 0; font-size: clamp(44px,5vw,92px); line-height: .96; font-weight: 400; }
.work-card-copy p { color: #8d8d91; font-size: 13px; letter-spacing: .04em; }
.work-card-mark { align-self: center; text-align: right; color: #242426; font-size: clamp(74px,10vw,190px); font-weight: 600; letter-spacing: -.08em; }

.service-board { padding: 110px clamp(40px,5vw,90px) 130px; }
.service-board-dark { color: #fff; background: #030303; }
.service-board-light { color: #111; background: #f4f4f1; }
.service-board header { display: grid; grid-template-columns: .8fr 1fr; gap: 12vw; align-items: end; margin-bottom: 100px; }
.service-board header h2 { margin: 30px 0 0; font-size: clamp(68px,7vw,130px); line-height: .85; font-weight: 400; }
.service-board header > p { max-width: 620px; margin: 0; font-size: 20px; line-height: 1.6; color: #87878b; }
.pill-dark { color: #d9d9d9; background: #29292b; }
.service-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; max-width: 1100px; margin-left: auto; }
.service-cards article { position: relative; min-height: 380px; padding: 34px; overflow: hidden; border-radius: 42px; background: #1d1d1f; }
.service-cards article:first-child { background: #414143; }
.service-cards article > span { position: absolute; left: -15px; bottom: -50px; color: rgba(255,255,255,.08); font-size: 180px; font-weight: 300; }
.service-cards h3 { margin: 0; max-width: 280px; font-size: 28px; font-weight: 400; line-height: 1.15; }
.service-cards p { max-width: 310px; margin: 70px 0 0 auto; color: #a3a3a6; font-size: 14px; line-height: 1.65; }
.service-cards b { position: absolute; right: 32px; bottom: 30px; color: #747477; font-size: 10px; font-weight: 400; letter-spacing: .1em; }
.service-cards-light article { border: 1px solid #d4d4d1; background: #e9e9e6; }
.service-cards-light article:first-child { color: #fff; background: linear-gradient(135deg,#d37b2f,#6e2f18); }
.service-cards-light article > span { color: rgba(0,0,0,.06); }
.service-cards-light article:first-child > span { color: rgba(255,255,255,.08); }
.service-cards-light p { color: #6e6e71; }
.service-cards-light article:first-child p { color: rgba(255,255,255,.7); }

.process-section { padding: 120px clamp(40px,5vw,90px) 150px; background: #f4f4f1; }
.process-section > h2 { margin: 26px 0 130px; font-size: clamp(68px,7vw,130px); font-weight: 400; line-height: .9; }
.process-grid { display: grid; grid-template-columns: repeat(4,1fr); align-items: start; }
.process-grid article { min-height: 280px; padding: 25px 24px; border-left: 1px solid #d4d4d1; }
.process-grid article span { color: #9c9c9c; font-size: 11px; }
.process-grid article h3 { margin: 65px 0 16px; padding: 16px; border-radius: 10px; background: #e8e8e5; font-size: 19px; font-weight: 400; }
.process-grid article p { padding: 0 16px; color: #777; font-size: 13px; line-height: 1.6; opacity: 0; transition: opacity .3s ease; }
.process-grid article.active h3, .process-grid article:hover h3 { color: white; background: #323234; }
.process-grid article.active p, .process-grid article:hover p { opacity: 1; }

.belief-section { min-height: 830px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 8vw; padding: 110px clamp(40px,5vw,90px); color: white; background: #020202; }
.belief-orbit { position: relative; width: min(520px,36vw); aspect-ratio: 1; margin: auto; border: 1px solid #3b3b3d; border-radius: 50%; animation: float 7s ease-in-out infinite; }
.belief-orbit span { position: absolute; display: grid; place-items: center; width: 130px; aspect-ratio: 1; border-radius: 50%; background: #1f1f21; font-size: 20px; }
.belief-orbit span:first-child { left: 9%; top: 15%; }
.belief-orbit span:nth-child(2) { right: 7%; bottom: 17%; color: white; background: var(--orange); }
.belief-orbit span:last-child { left: 32%; bottom: -6%; width: 150px; font-size: 11px; letter-spacing: .08em; }
.belief-section h2 { margin: 34px 0; font-size: clamp(64px,7vw,130px); line-height: .86; font-weight: 400; }
.belief-section p { max-width: 540px; color: #8e8e92; font-size: 18px; line-height: 1.65; }

.site-contact { min-height: 950px; padding: 100px clamp(40px,5vw,90px) 50px; color: #fff; background: radial-gradient(circle at 52% 20%,#11141c 0,#050609 42%,#020202 74%); }
.site-contact > p { color: #8f8f93; font-size: 12px; letter-spacing: .1em; }
.site-contact > h2 { margin: 160px 0 52px auto; width: fit-content; text-align: right; font-size: clamp(74px,9vw,170px); line-height: .78; font-weight: 400; letter-spacing: -.09em; }
.site-contact > h2 span { color: #5d5d62; }
.site-contact > a { display: block; width: fit-content; margin-left: auto; border-bottom: 1px solid #aaa; padding-bottom: 6px; font-size: 20px; }
.site-contact footer { display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: end; gap: 30px; min-height: 230px; margin-top: 90px; padding-top: 48px; border-top: 1px solid #2b2b2e; color: #8c8c90; }
.site-contact footer img { width: 180px; }
.site-contact footer p { margin: 0; text-align: center; }
.site-contact footer span { text-align: right; font-size: 11px; letter-spacing: .1em; }

.mobile-chapter { min-height: 1800px; padding: 110px clamp(40px,7vw,140px); overflow: hidden; background: #020202; }
.mobile-title { color: transparent; background: linear-gradient(180deg,#b4b4b7 0,#37373a 58%,#090909 100%); -webkit-background-clip: text; background-clip: text; font-size: clamp(110px,14vw,270px); line-height: .72; font-weight: 300; letter-spacing: -.09em; }
.mobile-screens { display: grid; grid-template-columns: repeat(3,1fr); gap: 70px; align-items: start; margin-top: 180px; }
.mobile-screen { min-height: 920px; padding: 42px 36px; color: #111; background: #e9e9e6; }
.mobile-screen:nth-child(2) { margin-top: 300px; }
.mobile-screen:nth-child(3) { margin-top: 110px; }
.mobile-screen > img { width: 130px; height: 54px; object-fit: contain; object-position: left center; }
.mobile-screen > span:not(.pill-label) { display: block; margin-top: 95px; font-size: 10px; letter-spacing: .1em; }
.mobile-screen h2 { margin: 34px 0; font-size: clamp(42px,4vw,74px); line-height: .9; font-weight: 400; }
.mobile-screen > p { color: #666; font-size: 12px; line-height: 1.6; }
.mobile-black-card { min-height: 330px; margin-top: 130px; padding: 34px; border-radius: 36px; color: white; background: #050505; font-size: 22px; }
.mobile-black-card b { display: block; margin-top: 130px; text-align: right; color: var(--orange); font-size: 74px; font-weight: 400; }
.mobile-screen-b { color: white; background: #111; }
.mobile-screen-b > h2 { margin-bottom: 120px; }
.mobile-service { display: flex; justify-content: space-between; align-items: flex-end; min-height: 245px; padding: 30px; border-radius: 32px; background: #29292b; }
.mobile-service + .mobile-service { margin-top: 16px; }
.mobile-service b { font-size: 90px; font-weight: 300; color: #5d5d61; }
.mobile-service.orange { background: linear-gradient(135deg,#d37b2f,#6e2f18); }
.mobile-service.orange b { color: rgba(255,255,255,.35); }
.mobile-screen-c ol { margin: 180px 0 0; padding: 0; list-style: none; }
.mobile-screen-c li { padding: 24px 0; border-bottom: 1px solid #c7c7c4; font-size: 22px; }

.closing-scene { position: relative; min-height: 1100px; overflow: hidden; background: #111; }
.closing-type { position: absolute; inset: -30px -20px auto; color: #f4f4f1; font-size: clamp(140px,17vw,330px); line-height: .7; font-weight: 500; letter-spacing: -.1em; white-space: nowrap; }
.closing-sheet { position: absolute; left: 50%; top: 52%; width: min(830px,58vw); min-height: 600px; padding: 64px; color: #111; background: #e7e8e6; transform: translate(-45%,-35%) rotate(18deg); box-shadow: 0 60px 120px rgba(0,0,0,.5); }
.closing-sheet img { width: 180px; }
.closing-sheet p { margin: 90px 0 24px; color: #7e7e81; font-size: 12px; letter-spacing: .08em; }
.closing-sheet h2 { margin: 0; font-size: clamp(54px,5vw,90px); line-height: .9; font-weight: 400; }

@keyframes float { 0%,100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-18px) rotate(2deg); } }

@media (max-width: 900px) {
  .system-section { min-height: auto; padding: 38px 24px 80px; }
  .section-meta { grid-template-columns: 1fr; gap: 8px; }
  .section-meta span:nth-child(2), .section-meta span:last-child { text-align: left; }
  .type-grid { grid-template-columns: 1fr; margin-top: 80px; }
  .type-specimen { min-height: 400px; }
  .color-stack { width: 100%; }
  .mockup-stage, .stage-image { min-height: 650px; height: 650px; }
  .phone-ui, .laptop-screen-ui { display: none; }
  .page-chapter { padding: 0 10px 80px; }
  .chapter-label { height: 210px; }
  .site-frame { border-radius: 24px; }
  .site-hero, .work-preview, .service-board, .process-section, .belief-section, .site-contact { padding-left: 24px; padding-right: 24px; }
  .site-nav { grid-template-columns: 1fr auto; }
  .site-nav nav { display: none; }
  .site-hero-grid, .service-board header, .belief-section { grid-template-columns: 1fr; }
  .site-hero-grid { margin-top: 90px; gap: 50px; }
  .statement-row { grid-template-columns: 1fr 1fr; }
  .statement-row span { height: 110px; }
  .work-card { grid-template-columns: 1fr; min-height: 520px; }
  .service-cards, .process-grid, .mobile-screens { grid-template-columns: 1fr; }
  .service-cards article { min-height: 320px; }
  .process-grid article p { opacity: 1; }
  .belief-orbit { width: 80vw; }
  .site-contact footer { grid-template-columns: 1fr; }
  .site-contact footer p, .site-contact footer span { text-align: left; }
  .mobile-chapter { min-height: auto; padding: 80px 24px; }
  .mobile-screens { margin-top: 100px; }
  .mobile-screen:nth-child(2), .mobile-screen:nth-child(3) { margin-top: 0; }
  .closing-scene { min-height: 720px; }
  .closing-sheet { width: 82vw; min-height: 460px; padding: 36px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .belief-orbit { animation: none; }
}