:root {
  --blue: #1f6feb;
  --blue-dark: #1556b3;
  --navy: #071428;
  --navy-soft: #0e2340;
  --text: #162033;
  --muted: #69758a;
  --line: #e2e8f0;
  --soft: #f5f7fa;
  --white: #ffffff;
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; overflow-x: hidden; background: var(--white); color: var(--text); font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; font-size: 16px; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
img { display: block; max-width: 100%; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: fixed; top: -4rem; left: 1rem; z-index: 100; padding: .7rem 1rem; background: white; color: #111; }
.skip-link:focus { top: 1rem; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; color: white; transition: background .25s ease, color .25s ease, box-shadow .25s ease; }
.site-header.is-scrolled { background: rgba(255,255,255,.95); color: var(--text); box-shadow: 0 8px 34px rgba(15, 23, 42, .08); backdrop-filter: blur(14px); }
.nav-wrap { display: grid; grid-template-columns: 1fr auto; align-items: center; width: min(calc(100% - 48px), var(--max)); min-height: 76px; margin: auto; }
.brand { display: flex; align-items: center; gap: 12px; width: max-content; }
.brand-logo, .footer-logo { flex: 0 0 auto; object-fit: contain; border-radius: 50%; background: #071428; box-shadow: 0 0 0 1px rgba(151, 188, 226, .18); }
.brand-logo { width: 42px; height: 42px; }
.site-header.is-scrolled .brand-logo { box-shadow: 0 0 0 3px #edf3fa, 0 0 0 4px #dce6f1; }
.brand-text { display: grid; line-height: 1.2; }
.brand-text strong { font-size: .98rem; letter-spacing: .08em; }
.brand-text small { margin-top: 4px; font-size: .56rem; letter-spacing: .12em; opacity: .68; }
.main-nav { display: flex; align-items: center; gap: clamp(22px, 2.6vw, 40px); font-size: .88rem; }
.main-nav > a { position: relative; padding: 27px 0; }
.main-nav > a:not(.nav-cta)::after { content: ""; position: absolute; right: 0; bottom: 18px; left: 0; height: 2px; transform: scaleX(0); background: var(--blue); transition: transform .2s ease; }
.main-nav > a:hover::after, .main-nav > a:focus-visible::after { transform: scaleX(1); }
.nav-cta { min-width: 98px; margin-left: 8px; padding: 10px 18px !important; border: 1px solid rgba(255,255,255,.58); border-radius: 6px; text-align: center; transition: background .2s ease, color .2s ease, border-color .2s ease; }
.site-header.is-scrolled .nav-cta { border-color: var(--blue); color: var(--blue); }
.nav-cta:hover, .nav-cta:focus-visible { border-color: var(--blue); background: var(--blue); color: white !important; }
.menu-button { display: none; }

.hero { position: relative; isolation: isolate; display: flex; align-items: center; min-height: 760px; height: 100svh; overflow: hidden; background: var(--navy); color: white; }
.hero-image { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-shade { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(3,12,28,.94) 0%, rgba(3,12,28,.77) 38%, rgba(3,12,28,.25) 70%, rgba(3,12,28,.18) 100%); }
.hero-content { width: min(calc(100% - 48px), var(--max)); margin: auto; padding-top: 76px; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 26px; color: #acd0ff; font-size: .84rem; letter-spacing: .12em; }
.eyebrow span { width: 30px; height: 2px; background: var(--blue); }
h1 { max-width: 760px; margin: 0; font-size: clamp(3.3rem, 5.5vw, 5.6rem); font-weight: 700; letter-spacing: -.045em; line-height: 1.14; }
.hero-content > p:not(.eyebrow) { max-width: 620px; margin: 26px 0 32px; color: rgba(255,255,255,.75); font-size: clamp(1rem, 1.35vw, 1.2rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 25px; border: 1px solid transparent; border-radius: 6px; font-size: .92rem; font-weight: 600; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-primary { background: var(--blue); color: white; box-shadow: 0 12px 32px rgba(31,111,235,.28); }
.button-primary:hover, .button-primary:focus-visible { background: #2f7df2; }
.button-outline { border-color: rgba(255,255,255,.48); color: white; }
.button-outline:hover, .button-outline:focus-visible { border-color: white; background: rgba(255,255,255,.1); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 42px 0 0; padding: 0; list-style: none; }
.hero-tags li { padding: 6px 12px; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; background: rgba(255,255,255,.06); color: rgba(255,255,255,.72); font-size: .77rem; backdrop-filter: blur(6px); }
.hero-scroll { position: absolute; right: 50%; bottom: 28px; display: flex; flex-direction: column; align-items: center; gap: 8px; color: rgba(255,255,255,.52); font-size: .7rem; letter-spacing: .12em; }
.hero-scroll i { width: 1px; height: 36px; background: linear-gradient(white, transparent); }

.stats { position: relative; z-index: 3; display: grid; grid-template-columns: repeat(4, 1fr); width: min(calc(100% - 48px), var(--max)); margin: -74px auto 0; border-radius: 10px; background: white; box-shadow: 0 20px 60px rgba(20,40,80,.13); }
.stat { padding: 28px 32px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat strong { display: block; color: var(--blue); font-size: 2.3rem; line-height: 1; }
.stat strong small { margin-left: 3px; font-size: 1rem; }
.stat span { display: block; margin-top: 14px; font-weight: 650; }
.stat p { margin: 4px 0 0; color: var(--muted); font-size: .78rem; }

.section { padding: 108px max(24px, calc((100vw - var(--max)) / 2)); }
.section-soft { background: var(--soft); }
.section-heading { max-width: 740px; margin: 0 auto 58px; text-align: center; }
.section-label { margin: 0 0 12px; color: var(--blue); font-size: .76rem; font-weight: 700; letter-spacing: .16em; }
.section-heading h2 { margin: 0; font-size: clamp(2.2rem, 3.5vw, 3.4rem); line-height: 1.25; }
.section-heading > p:last-child { max-width: 640px; margin: 17px auto 0; color: var(--muted); }

.about { padding-top: 126px; }
.about-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(50px, 8vw, 110px); align-items: center; }
.about-copy h3 { margin: 0 0 24px; font-size: clamp(1.55rem, 2.4vw, 2.3rem); }
.about-copy p { margin: 0 0 18px; color: var(--muted); line-height: 1.95; }
.about-photo { position: relative; min-height: 440px; overflow: hidden; margin: 0; border-radius: 10px; background: #dce4ec; box-shadow: 0 24px 60px rgba(17, 39, 69, .14); }
.about-photo img { width: 100%; height: 440px; object-fit: cover; }
.about-photo::after { content: ""; position: absolute; inset: auto 0 0; height: 45%; background: linear-gradient(transparent, rgba(4,14,29,.78)); }
.about-photo figcaption { position: absolute; right: 28px; bottom: 25px; left: 28px; z-index: 1; display: grid; color: white; }
.about-photo figcaption small { color: #9fc8ff; font-size: .64rem; font-weight: 700; letter-spacing: .16em; }
.about-photo figcaption strong { margin-top: 5px; font-size: 1.05rem; font-weight: 600; }

.service-showcase { display: grid; grid-template-columns: .84fr 1.16fr; gap: 18px; align-items: stretch; }
.service-system, .service-scenes { overflow: hidden; border-radius: 10px; }
.service-system { display: flex; flex-direction: column; min-height: 520px; padding: 42px; background: var(--navy); color: white; }
.service-index { display: flex; align-items: center; gap: 12px; color: #81b6ff; }
.service-index span { font-size: .74rem; }
.service-index small { padding-left: 12px; border-left: 1px solid rgba(255,255,255,.22); font-size: .61rem; letter-spacing: .14em; }
.service-system > h3 { max-width: 340px; margin: 74px 0 17px; font-size: clamp(1.8rem, 3vw, 2.6rem); line-height: 1.25; }
.service-system > p { max-width: 420px; margin: 0; color: #99aabe; }
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 28px 0 0; padding: 0; list-style: none; }
.service-tags li { padding: 6px 10px; border: 1px solid rgba(255,255,255,.15); border-radius: 999px; color: #b6c5d7; font-size: .7rem; }
.service-scope { margin-top: auto; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.14); }
.service-scope small { color: #7290b3; font-size: .64rem; letter-spacing: .12em; }
.service-scope p { margin: 5px 0 0; color: #b0bfd0; font-size: .78rem; }
.service-scenes { display: grid; grid-template-rows: minmax(300px, 1fr) auto; min-height: 520px; border: 1px solid var(--line); background: white; }
.service-scenes > img { width: 100%; height: 100%; min-height: 330px; object-fit: cover; }
.scene-services { display: grid; grid-template-columns: 1fr 1fr; }
.scene-services > div { min-height: 220px; padding: 30px; border-top: 1px solid var(--line); }
.scene-services > div + div { border-left: 1px solid var(--line); }
.scene-services span { color: var(--blue); font-size: .66rem; font-weight: 700; letter-spacing: .09em; }
.scene-services h3 { margin: 20px 0 10px; font-size: 1.22rem; line-height: 1.35; }
.scene-services p { margin: 0; color: var(--muted); font-size: .87rem; }

.advantage-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.advantage-card { min-height: 286px; padding: 30px; border-top: 3px solid var(--blue); background: var(--soft); }
.advantage-card span { color: #a8b5c5; font-size: .75rem; }
.advantage-card h3 { margin: 62px 0 14px; font-size: 1.25rem; }
.advantage-card p { margin: 0; color: var(--muted); font-size: .92rem; }

.section-navy { background: var(--navy); color: white; }
.section-navy .section-heading > p:last-child { color: #94a5bc; }
.process-list { display: grid; grid-template-columns: repeat(6, 1fr); margin: 0; padding: 0; list-style: none; }
.process-list li { position: relative; min-height: 225px; padding: 28px 22px; border: 1px solid rgba(255,255,255,.14); border-right: 0; }
.process-list li:last-child { border-right: 1px solid rgba(255,255,255,.14); }
.process-list li::after { content: ""; position: absolute; top: 50px; right: -7px; z-index: 2; width: 12px; height: 12px; border-top: 1px solid #6c89ad; border-right: 1px solid #6c89ad; background: var(--navy); transform: rotate(45deg); }
.process-list li:last-child::after { display: none; }
.process-list b { color: #5f85b5; font-size: .76rem; }
.process-list div { position: absolute; right: 22px; bottom: 28px; left: 22px; }
.process-list h3 { margin: 0 0 8px; font-size: 1.12rem; }
.process-list p { margin: 0; color: #8294ab; font-size: .83rem; }

.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.scenario-card { overflow: hidden; border: 1px solid var(--line); border-radius: 10px; background: white; }
.scenario-art { position: relative; display: flex; align-items: flex-end; height: 190px; overflow: hidden; padding: 24px; background: linear-gradient(135deg, #0b2344, #1f6feb); }
.scenario-art::before { content: ""; position: absolute; width: 190px; height: 190px; top: -72px; right: -42px; border: 28px solid rgba(255,255,255,.16); border-radius: 50%; }
.scenario-art::after { content: ""; position: absolute; width: 120px; height: 120px; bottom: -52px; left: -34px; border: 1px solid rgba(255,255,255,.3); border-radius: 20px; transform: rotate(24deg); }
.art-food { background: linear-gradient(135deg, #123969, #0885d1); }
.art-beauty { background: linear-gradient(135deg, #142853, #3465c9); }
.scenario-art span { position: relative; z-index: 1; color: white; font-size: 1.55rem; font-weight: 700; }
.scenario-card h3 { margin: 25px 25px 10px; font-size: 1.13rem; }
.scenario-card p { margin: 0 25px 28px; color: var(--muted); font-size: .9rem; }
.scenario-template { display: grid; grid-template-columns: .72fr 1.2fr auto; gap: 42px; align-items: center; margin-top: 18px; padding: 31px 34px; border-radius: 10px; background: var(--navy); color: white; }
.scenario-template-title small { color: #75abf7; font-size: .62rem; font-weight: 700; letter-spacing: .12em; }
.scenario-template-title h3 { margin: 4px 0 0; font-size: 1.35rem; }
.scenario-template > p { margin: 0; color: #99aabe; font-size: .86rem; }
.scenario-template ul { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 7px; margin: 0; padding: 0; list-style: none; }
.scenario-template li { padding: 6px 10px; border: 1px solid rgba(255,255,255,.15); border-radius: 999px; color: #b6c5d7; font-size: .68rem; white-space: nowrap; }

.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 9vw; padding: 104px max(24px, calc((100vw - var(--max)) / 2)); background: linear-gradient(135deg, #1764cf, #0b3f8e); color: white; }
.contact .section-label { color: #b9d7ff; }
.contact h2 { margin: 0; font-size: clamp(2.5rem, 4.4vw, 4.4rem); line-height: 1.2; }
.contact-copy > p:not(.section-label) { max-width: 550px; margin: 23px 0 30px; color: rgba(255,255,255,.75); }
.button-light { background: white; color: var(--blue-dark); }
.contact-panel { align-self: center; border-top: 1px solid rgba(255,255,255,.38); }
.contact-panel > div { display: grid; grid-template-columns: 94px 1fr; gap: 18px; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.24); }
.contact-panel span { color: rgba(255,255,255,.6); font-size: .84rem; }
.contact-panel p { margin: 0; }

footer { display: grid; grid-template-columns: 1fr auto auto; gap: 42px; align-items: center; padding: 32px max(24px, calc((100vw - var(--max)) / 2)); background: #050c18; color: #7f8da1; font-size: .78rem; }
footer p { margin: 0; }
.footer-meta { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 16px; }
.footer-meta a { color: #a7b3c4; transition: color .2s ease; }
.footer-meta a:hover, .footer-meta a:focus-visible { color: white; text-decoration: underline; text-underline-offset: 3px; }
.footer-brand { display: flex; align-items: center; gap: 11px; color: white; line-height: 1.2; }
.footer-logo { width: 42px; height: 42px; }
.footer-brand-copy { display: grid; }
.footer-brand small { margin-top: 5px; color: #6f7d91; font-size: .56rem; letter-spacing: .12em; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal { opacity: 1; transform: none; transition: none; } }

@media (max-width: 980px) {
  .main-nav { gap: 18px; }
  .main-nav a:nth-child(4), .main-nav a:nth-child(5) { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .about-layout { grid-template-columns: 1fr; }
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
  .process-list { grid-template-columns: repeat(3, 1fr); }
  .process-list li:nth-child(3) { border-right: 1px solid rgba(255,255,255,.14); }
  .process-list li:nth-child(3)::after { display: none; }
  .process-list li:nth-child(n+4) { border-top: 0; }
  .contact { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-wrap { width: calc(100% - 32px); min-height: 68px; }
  .brand-logo { width: 36px; height: 36px; }
  .brand-text small { display: none; }
  .menu-button { display: grid; gap: 5px; justify-self: end; width: 42px; padding: 10px; border: 0; background: transparent; }
  .menu-button i { display: block; width: 22px; height: 1px; background: currentColor; transition: transform .2s ease, opacity .2s ease; }
  .menu-button[aria-expanded="true"] i:nth-of-type(1) { transform: translateY(6px) rotate(45deg); }
  .menu-button[aria-expanded="true"] i:nth-of-type(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] i:nth-of-type(3) { transform: translateY(-6px) rotate(-45deg); }
  .main-nav { position: absolute; top: 68px; right: 0; left: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 22px 24px; background: white; color: var(--text); box-shadow: 0 20px 40px rgba(10,28,55,.12); }
  .main-nav.is-open { display: flex; }
  .main-nav a, .main-nav a:nth-child(4), .main-nav a:nth-child(5) { display: block; padding: 13px 2px; border-bottom: 1px solid var(--line); }
  .main-nav a::after { display: none; }
  .main-nav .nav-cta { margin: 12px 0 0; border-color: var(--blue); color: var(--blue); }
  .hero { min-height: 700px; height: 92svh; }
  .hero-image { object-position: 63% center; }
  .hero-shade { background: linear-gradient(90deg, rgba(3,12,28,.96), rgba(3,12,28,.76) 65%, rgba(3,12,28,.35)); }
  .hero-content { width: calc(100% - 40px); padding-top: 68px; }
  h1 { font-size: clamp(2.8rem, 13vw, 4.1rem); }
  .hero-scroll { display: none; }
  .stats { width: calc(100% - 32px); margin-top: -46px; }
  .stat { padding: 22px 18px; }
  .stat strong { font-size: 1.9rem; }
  .section { padding-top: 80px; padding-bottom: 80px; }
  .section-heading { margin-bottom: 40px; text-align: left; }
  .section-heading > p:last-child { margin-left: 0; }
  .about-photo, .about-photo img { min-height: 340px; height: 340px; }
  .about-photo img { object-position: 56% center; }
  .service-showcase { grid-template-columns: 1fr; }
  .service-system { min-height: 500px; padding: 32px 24px 24px; }
  .service-system > h3 { margin-top: 50px; }
  .service-scenes { min-height: 0; }
  .service-scenes > img { min-height: 260px; height: 260px; }
  .scene-services { grid-template-columns: 1fr; }
  .scene-services > div { min-height: 0; padding: 26px 24px; }
  .scene-services > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .advantage-grid, .scenario-grid { grid-template-columns: 1fr; }
  .scenario-template { grid-template-columns: 1fr; gap: 18px; padding: 27px 24px; }
  .scenario-template ul { justify-content: flex-start; }
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .process-list li, .process-list li:nth-child(3) { border-right: 0; border-bottom: 0; }
  .process-list li:nth-child(odd) { border-right: 1px solid rgba(255,255,255,.14); }
  .process-list li:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.14); }
  .process-list li::after { display: none; }
  footer { grid-template-columns: 1fr; gap: 12px; }
  .footer-meta { justify-content: flex-start; }
}