:root {
  --ink: #071225;
  --navy: #081329;
  --navy-2: #0d1c38;
  --navy-3: #12264a;
  --orange: #f48a25;
  --orange-light: #ffb463;
  --ivory: #f6f2e9;
  --paper: #fffdf8;
  --line: rgba(135, 157, 195, .23);
  --muted: #91a0b8;
  --text: #18253b;
  --blue: #6b9cff;
  --shadow: 0 26px 70px rgba(6, 16, 36, .16);
  --radius: 24px;
  --shell: 1180px;
  color-scheme: dark;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--text); line-height: 1.7; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
::selection { color: var(--navy); background: var(--orange-light); }

.shell { width: min(var(--shell), calc(100% - 56px)); margin: 0 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; z-index: 99; top: 12px; left: 14px; padding: 8px 14px; border-radius: 8px; background: var(--orange); color: var(--navy); transform: translateY(-160%); transition: transform .2s ease; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; z-index: 30; top: 0; border-bottom: 1px solid rgba(140, 162, 201, .14); background: rgba(8, 19, 41, .84); backdrop-filter: blur(18px); }
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand-mark { width: 31px; height: 31px; display: inline-flex; align-items: center; justify-content: center; gap: 3px; padding: 6px 5px; border-radius: 10px 10px 10px 3px; background: var(--orange); transform: rotate(-8deg); box-shadow: 0 7px 20px rgba(244, 138, 37, .24); }
.brand-mark i { width: 3px; height: 14px; border-radius: 2px; background: var(--navy); transform: skew(-12deg); }
.brand-mark i:nth-child(2) { height: 18px; }
.brand-logo { width: 35px; height: 35px; display: inline-flex; flex: 0 0 auto; align-items: center; justify-content: center; overflow: hidden; border: 1px solid rgba(255, 255, 255, .52); border-radius: 11px 11px 11px 3px; background: #fff; box-shadow: 0 7px 20px rgba(2, 12, 31, .25); }
.brand-logo img { width: 100%; height: 100%; object-fit: cover; object-position: center; transform: scale(1.34); }
.brand-copy { display: flex; flex-direction: column; line-height: 1; gap: 5px; }
.brand-copy strong { font-size: 17px; letter-spacing: .12em; }
.brand-copy small { color: var(--muted); font-size: 10px; letter-spacing: .16em; }
.site-header .brand-copy strong { color: var(--ivory); }
.site-nav { display: flex; align-items: center; gap: clamp(17px, 2.3vw, 32px); color: #b7c2d3; font-size: 13px; }
.site-nav a { transition: color .2s ease; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--orange-light); }
.site-nav .nav-cta { padding: 10px 14px; border: 1px solid rgba(244, 138, 37, .58); border-radius: 99px; color: var(--orange-light); }
.site-nav .nav-cta span { margin-left: 6px; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 1px solid var(--line); border-radius: 12px; background: transparent; color: var(--ivory); cursor: pointer; }
.menu-toggle i { display: block; width: 19px; height: 1px; margin: 5px auto; background: currentColor; transition: transform .2s ease; }

.hero { position: relative; overflow: hidden; min-height: 730px; padding: 106px 0 88px; background: var(--navy); color: var(--ivory); isolation: isolate; }
.hero::before { position: absolute; z-index: -2; inset: 0; content: ""; background: radial-gradient(circle at 78% 45%, rgba(42, 82, 151, .24), transparent 30%), radial-gradient(circle at 18% 22%, rgba(244, 138, 37, .08), transparent 26%), linear-gradient(125deg, #071226 0%, #0b1832 58%, #0d2243 100%); }
.hero::after { position: absolute; z-index: -1; right: -15%; bottom: -40%; width: 70vw; height: 70vw; content: ""; border: 1px solid rgba(103, 143, 215, .1); border-radius: 50%; box-shadow: 0 0 0 80px rgba(103, 143, 215, .025), 0 0 0 160px rgba(103, 143, 215, .018); }
.hero-orbit { position: absolute; z-index: -1; border: 1px solid rgba(244, 138, 37, .12); border-radius: 50%; pointer-events: none; }
.hero-orbit-one { top: -20%; right: 9%; width: 34vw; height: 34vw; }
.hero-orbit-two { bottom: -38%; left: -13%; width: 38vw; height: 38vw; border-color: rgba(107, 156, 255, .1); }
.hero-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); align-items: center; gap: clamp(42px, 6vw, 86px); }
.hero-copy { position: relative; z-index: 1; padding-bottom: 10px; }
.eyebrow, .section-kicker { margin: 0 0 22px; color: var(--orange-light); font-size: 11px; font-weight: 700; letter-spacing: .18em; line-height: 1.4; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 10px; }
.eyebrow-dot { width: 7px; height: 7px; display: inline-block; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 6px rgba(244, 138, 37, .12); }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-weight: 680; letter-spacing: -.045em; }
h1 { max-width: 690px; margin-bottom: 26px; font-size: clamp(45px, 5vw, 68px); line-height: 1.04; }
h1 span, h2 span { color: var(--orange-light); }
.hero-lede { max-width: 530px; margin-bottom: 14px; color: #d7deea; font-size: clamp(16px, 1.6vw, 19px); line-height: 1.8; }
.hero-meta { max-width: 540px; margin-bottom: 31px; color: var(--muted); font-size: 13px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; padding: 12px 20px; border: 1px solid transparent; border-radius: 999px; font-size: 13px; font-weight: 700; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-primary { background: var(--orange); color: var(--navy); box-shadow: 0 10px 26px rgba(244, 138, 37, .22); }
.button-primary:hover, .button-primary:focus-visible { background: var(--orange-light); }
.button-ghost { border-color: rgba(216, 226, 243, .34); color: var(--ivory); }
.button-ghost:hover, .button-ghost:focus-visible { border-color: var(--orange-light); color: var(--orange-light); }
.hero-boundary { display: flex; align-items: center; gap: 8px; margin: 25px 0 0; color: #8392ac; font-size: 11px; }
.hero-boundary span { color: var(--orange); font-size: 9px; }
.hero-visual { min-width: 0; }
.hero-art { position: relative; overflow: hidden; margin: 0; aspect-ratio: 1.776; border: 1px solid rgba(156, 184, 238, .24); border-radius: 26px; background: #0a1730; box-shadow: 0 32px 80px rgba(0, 0, 0, .25); }
.hero-art::after { position: absolute; inset: 0; content: ""; pointer-events: none; background: linear-gradient(115deg, rgba(255,255,255,.04), transparent 35%, rgba(244, 138, 37, .08)); }
.hero-art img { width: 100%; height: 100%; object-fit: cover; }
.hero-art figcaption { position: absolute; right: 18px; bottom: 16px; left: 18px; display: flex; align-items: end; justify-content: space-between; gap: 15px; color: var(--ivory); text-shadow: 0 2px 10px rgba(0, 0, 0, .6); }
.hero-art figcaption span { color: var(--orange-light); font-size: 11px; letter-spacing: .13em; text-transform: uppercase; }
.hero-art figcaption strong { font-size: 12px; font-weight: 500; }
.loop-legend { display: flex; justify-content: space-between; gap: 10px; margin-top: 17px; color: #9daac0; font-size: 11px; }
.loop-legend span { display: flex; align-items: center; gap: 5px; white-space: nowrap; }
.loop-legend b { color: var(--orange-light); font-size: 10px; font-weight: 700; }

.trust-strip { position: relative; z-index: 2; border-bottom: 1px solid #e8e2d6; background: var(--paper); color: var(--text); }
.trust-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.1fr; gap: 30px; padding: 25px 0; }
.trust-item { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.trust-label { color: #8c8a83; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.trust-item strong { overflow: hidden; font-size: 13px; font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }

.section { padding: 118px 0; }
.section-dark { position: relative; overflow: hidden; background: var(--navy); color: var(--ivory); }
.section-dark::before { position: absolute; top: -20%; right: -12%; width: 45vw; height: 45vw; content: ""; border: 1px solid rgba(107, 156, 255, .09); border-radius: 50%; box-shadow: 0 0 0 80px rgba(107, 156, 255, .025); pointer-events: none; }
.section-paper { background: var(--paper); color: var(--text); }
.section-head { position: relative; max-width: 710px; margin-bottom: 52px; }
.section-head-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, .72fr); align-items: end; gap: 60px; max-width: none; }
.section-head-split > p { max-width: 410px; margin: 0 0 7px; color: var(--muted); font-size: 14px; }
.section-head h2 { margin-bottom: 18px; font-size: clamp(38px, 4.4vw, 62px); line-height: 1.1; }
.section-head > p:not(.section-kicker) { max-width: 570px; color: #6c7788; font-size: 15px; }
.section-dark .section-head > p:not(.section-kicker), .section-dark .section-head-split > p { color: #95a3bc; }

.flow-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--line); }
.flow-card { position: relative; min-height: 279px; padding: 25px 20px 20px; background: rgba(11, 28, 56, .83); }
.flow-card:not(:last-child)::after { position: absolute; top: 39px; right: -8px; z-index: 2; width: 14px; height: 14px; content: "↗"; color: var(--orange-light); background: var(--navy-2); border: 1px solid rgba(244, 138, 37, .4); border-radius: 50%; font-size: 9px; line-height: 12px; text-align: center; }
.flow-number { display: block; margin-bottom: 62px; color: var(--orange-light); font-size: 11px; letter-spacing: .12em; }
.flow-card h3 { margin-bottom: 10px; font-size: 22px; }
.flow-card p { min-height: 89px; margin-bottom: 19px; color: #98a6bd; font-size: 13px; line-height: 1.75; }
.flow-tag, .service-body > span { display: inline-flex; padding: 5px 9px; border: 1px solid rgba(120, 146, 194, .3); border-radius: 999px; color: #b8c5d9; font-size: 10px; }

.service-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
.service-card { grid-column: span 2; overflow: hidden; border: 1px solid #e7e1d6; border-radius: var(--radius); background: #fff; box-shadow: 0 12px 30px rgba(36, 45, 66, .04); transition: transform .25s ease, box-shadow .25s ease; }
.service-card-wide { grid-column: span 3; }
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.service-art { overflow: hidden; aspect-ratio: 1.33; background: var(--navy); }
.service-art img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.service-card:hover .service-art img { transform: scale(1.035); }
.service-body { padding: 23px 24px 25px; }
.service-index { margin-bottom: 11px; color: #ab7a4c; font-size: 10px; font-weight: 700; letter-spacing: .13em; }
.service-body h3 { margin-bottom: 11px; color: var(--text); font-size: 23px; }
.service-body p:not(.service-index) { min-height: 78px; margin-bottom: 18px; color: #667083; font-size: 13px; line-height: 1.8; }
.service-body > span { border-color: #e2d7c7; color: #8f6c4e; }

.section-entries { background: #efe9de; }
.entry-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.entry-card { position: relative; min-height: 400px; overflow: hidden; padding: 46px 48px 39px; border-radius: var(--radius); }
.entry-card::after { position: absolute; right: -55px; bottom: -96px; width: 245px; height: 245px; content: ""; border: 1px solid rgba(244, 138, 37, .3); border-radius: 50%; box-shadow: 0 0 0 38px rgba(244, 138, 37, .08), 0 0 0 76px rgba(244, 138, 37, .045); pointer-events: none; }
.entry-merchant { background: var(--navy); color: var(--ivory); }
.entry-partner { background: var(--orange); color: var(--navy); }
.entry-card .section-kicker { margin-bottom: 31px; }
.entry-merchant .section-kicker { color: var(--orange-light); }
.entry-partner .section-kicker { color: #68401f; }
.entry-card h2 { margin-bottom: 16px; font-size: 42px; }
.entry-card > p:not(.section-kicker) { max-width: 430px; min-height: 79px; color: #b2bed0; font-size: 14px; }
.entry-partner > p:not(.section-kicker) { color: #5b3d28; }
.check-list { display: grid; gap: 8px; margin: 21px 0 27px; padding: 0; list-style: none; font-size: 12px; }
.check-list li { display: flex; gap: 10px; align-items: center; }
.check-list li::before { width: 5px; height: 5px; content: ""; border-radius: 50%; background: var(--orange); }
.entry-partner .check-list li::before { background: var(--navy); }
.text-link { position: relative; z-index: 1; display: inline-flex; gap: 12px; align-items: center; color: var(--orange-light); font-size: 13px; font-weight: 700; }
.entry-partner .text-link { color: var(--navy); }
.text-link span { transition: transform .2s ease; }
.text-link:hover span { transform: translate(3px, -3px); }

.case-section { background: #0a1730; }
.case-note { display: grid; grid-template-columns: 50px minmax(0, 1fr) minmax(270px, .82fr); gap: 25px; align-items: start; padding: 34px; border: 1px solid rgba(142, 169, 217, .25); border-radius: var(--radius); background: linear-gradient(115deg, rgba(22, 45, 83, .78), rgba(12, 28, 55, .9)); }
.case-note-mark { color: var(--orange); font-size: 34px; line-height: 1; }
.case-status, .card-label { margin-bottom: 13px; color: var(--orange-light); font-size: 10px; font-weight: 700; letter-spacing: .15em; }
.case-note h3 { margin-bottom: 12px; color: var(--ivory); font-size: 25px; }
.case-note > div > p:last-child { max-width: 520px; margin-bottom: 0; color: #9caac1; font-size: 13px; }
.case-method { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.case-method span { display: flex; flex-direction: column; gap: 4px; padding: 13px; border: 1px solid rgba(142, 169, 217, .2); border-radius: 13px; color: #9caac1; font-size: 11px; }
.case-method b { color: var(--ivory); font-size: 13px; }

.answer-section { padding: 92px 0 100px; border-bottom: 1px solid #e8e2d6; }
.answer-grid { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: 84px; align-items: start; }
.answer-intro { max-width: 430px; }
.answer-intro h2 { margin-bottom: 19px; font-size: clamp(38px, 4.2vw, 58px); line-height: 1.1; }
.answer-intro > p:not(.section-kicker) { color: #707a89; font-size: 14px; line-height: 1.85; }
.answer-list { border-top: 1px solid #d9d1c4; }
.answer-list article { display: grid; grid-template-columns: 38px minmax(0, 1fr); gap: 18px; padding: 22px 0; border-bottom: 1px solid #d9d1c4; }
.answer-list article > span { color: #be8b58; font-size: 11px; font-weight: 700; letter-spacing: .1em; }
.answer-list h3 { margin-bottom: 5px; color: var(--text); font-size: 18px; }
.answer-list p { margin: 0; color: #707a89; font-size: 13px; line-height: 1.8; }

.case-toolbar { display: flex; flex-wrap: wrap; gap: 9px; margin: -15px 0 28px; }
.case-filter { padding: 9px 13px; border: 1px solid rgba(142, 169, 217, .3); border-radius: 999px; background: rgba(255, 255, 255, .03); color: #9eacc1; cursor: pointer; font-size: 11px; transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease; }
.case-filter:hover, .case-filter:focus-visible { transform: translateY(-2px); border-color: rgba(255, 180, 99, .75); color: var(--ivory); }
.case-filter.is-active { border-color: var(--orange); background: var(--orange); color: var(--navy); font-weight: 700; }
.case-filter span { margin-left: 4px; opacity: .72; font-size: 9px; }
.case-wall { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.case-card { overflow: hidden; border: 1px solid #e5dfd5; border-radius: var(--radius); background: var(--paper); color: var(--text); box-shadow: 0 15px 38px rgba(0, 0, 0, .14); transition: transform .25s ease, box-shadow .25s ease, opacity .25s ease; }
.case-card:hover { transform: translateY(-5px); box-shadow: 0 28px 64px rgba(0, 0, 0, .22); }
.case-card.is-filtered { display: none; }
.case-card-feature { display: grid; grid-column: 1 / -1; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); }
.case-visual { position: relative; min-height: 265px; overflow: hidden; background: var(--navy); isolation: isolate; }
.case-card-feature .case-visual { min-height: 410px; }
.case-visual::after { position: absolute; z-index: 1; inset: 0; content: ""; pointer-events: none; background: linear-gradient(145deg, rgba(7, 18, 37, .04), rgba(7, 18, 37, .68)); }
.case-visual img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.case-card:hover .case-visual img { transform: scale(1.045); }
.case-visual-label { position: absolute; z-index: 2; top: 17px; left: 17px; padding: 6px 9px; border: 1px solid rgba(255, 255, 255, .25); border-radius: 999px; background: rgba(7, 18, 37, .45); color: var(--orange-light); font-size: 9px; letter-spacing: .13em; backdrop-filter: blur(8px); }
.case-visual-douyin { background: #111e38; }
.case-visual-ads { background: #142d52; }
.case-visual-retail { background: #0f3142; }
.case-visual-beauty { background: #292542; }
.case-visual-bbq { background: #392316; }
.case-content { padding: 24px 25px 25px; }
.case-card-feature .case-content { display: flex; flex-direction: column; justify-content: center; padding: 36px 38px; }
.case-topline { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 15px; }
.case-category { color: #bd6f31; font-size: 10px; font-weight: 700; letter-spacing: .1em; }
.case-period { color: #8591a0; font-size: 10px; text-align: right; }
.case-content h3 { margin-bottom: 10px; color: var(--text); font-size: 27px; line-height: 1.18; }
.case-card:not(.case-card-feature) .case-content h3 { font-size: 23px; }
.case-summary { min-height: 51px; margin-bottom: 19px; color: #687386; font-size: 13px; line-height: 1.75; }
.case-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin: 0 0 20px; border-top: 1px solid #e3ddd3; border-bottom: 1px solid #e3ddd3; }
.case-metrics > div { min-width: 0; padding: 13px 8px 12px 0; }
.case-metrics dt { overflow: hidden; color: #122548; font-size: clamp(17px, 2vw, 23px); font-weight: 800; letter-spacing: -.045em; text-overflow: ellipsis; white-space: nowrap; }
.case-metrics dd { margin: 2px 0 0; color: #8b95a3; font-size: 9px; line-height: 1.4; }
.case-details { border-top: 1px solid #e3ddd3; }
.case-details summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 0 2px; color: #8e643f; cursor: pointer; font-size: 11px; font-weight: 700; list-style: none; }
.case-details summary::-webkit-details-marker { display: none; }
.case-details summary span { color: #bd8954; font-size: 19px; font-weight: 400; transition: transform .2s ease; }
.case-details[open] summary span { transform: rotate(45deg); }
.case-details > div { padding: 10px 0 2px; }
.case-details p { margin: 0 0 9px; color: #788392; font-size: 11px; line-height: 1.75; }
.case-details p:last-child { margin-bottom: 0; }
.case-details strong { color: #3d4a5d; }
.case-disclosure { display: flex; align-items: start; gap: 14px; margin-top: 17px; padding: 18px 21px; border: 1px solid rgba(142, 169, 217, .2); border-radius: 17px; background: rgba(18, 38, 74, .58); }
.case-disclosure-mark { flex: 0 0 auto; color: var(--orange-light); font-size: 18px; line-height: 1.4; }
.case-disclosure p { margin: 0; color: #9daac0; font-size: 11px; line-height: 1.75; }
.case-disclosure strong { color: var(--ivory); }
.inline-email { color: #a76028; text-decoration: underline; text-underline-offset: 3px; }
.contact-email { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 13px; color: var(--orange-light); font-size: 15px; font-weight: 700; text-underline-offset: 4px; }
.contact-email:hover, .contact-email:focus-visible { color: var(--ivory); text-decoration: underline; }
.footer-email { display: inline-block; margin-top: 11px; color: var(--orange-light); font-size: 12px; }
.footer-email:hover, .footer-email:focus-visible { color: var(--ivory); text-decoration: underline; }

.boundary-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; align-items: stretch; }
.cooperation-card { padding: 38px 42px; border-radius: var(--radius); background: var(--navy); color: var(--ivory); }
.cooperation-card h3 { margin-bottom: 22px; font-size: 28px; }
.cooperation-card p:not(.card-label) { color: #aab7ca; font-size: 14px; }
.cooperation-card p:last-child { margin-bottom: 0; }
.boundary-list { display: grid; border: 1px solid #e6dfd4; border-radius: var(--radius); background: #fff; }
.boundary-list > div { display: grid; grid-template-columns: 50px minmax(0, 1fr); gap: 16px; align-items: center; padding: 20px 28px; border-bottom: 1px solid #ece6dc; }
.boundary-list > div:last-child { border-bottom: 0; }
.boundary-list span { color: #be8b58; font-size: 11px; font-weight: 700; }
.boundary-list p { margin: 0; color: #707a89; font-size: 13px; }
.boundary-list strong { display: block; margin-bottom: 3px; color: var(--text); font-size: 14px; }

.faq-section { background: #f5f1e9; }
.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: start; }
.faq-grid .section-head { position: sticky; top: 120px; margin-bottom: 0; }
.faq-list { border-top: 1px solid #d9d1c4; }
.faq-list details { border-bottom: 1px solid #d9d1c4; }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; color: var(--text); cursor: pointer; font-size: 16px; font-weight: 650; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { flex: 0 0 auto; color: #bd8954; font-size: 22px; font-weight: 400; transition: transform .2s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { max-width: 650px; margin: -5px 34px 22px 0; color: #727b89; font-size: 13px; line-height: 1.8; }

.contact-section { padding: 86px 0; background: var(--navy); color: var(--ivory); }
.contact-card { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .7fr); gap: 70px; align-items: center; padding: 58px 64px; border: 1px solid rgba(142, 169, 217, .25); border-radius: 28px; background: radial-gradient(circle at 82% 20%, rgba(244, 138, 37, .15), transparent 28%), linear-gradient(125deg, #0d2142, #0b1932); }
.contact-card h2 { margin-bottom: 18px; font-size: clamp(39px, 4vw, 58px); line-height: 1.08; }
.contact-card > div > p:not(.section-kicker) { max-width: 530px; margin: 0; color: #a9b7cc; font-size: 14px; }
.contact-side { display: flex; flex-direction: column; align-items: flex-start; gap: 7px; padding-left: 36px; border-left: 1px solid rgba(142, 169, 217, .27); }
.contact-label { color: var(--orange-light); font-size: 11px; letter-spacing: .14em; }
.contact-side strong { font-size: 23px; }
.contact-side small { margin-bottom: 14px; color: var(--muted); font-size: 12px; }
.contact-qr { display: flex; flex-direction: column; align-items: flex-start; gap: 7px; margin: 6px 0 8px; }
.contact-qr img { width: 148px; height: 148px; padding: 7px; border-radius: 15px; background: #fff; box-shadow: 0 14px 30px rgba(0, 0, 0, .18); }
.contact-qr figcaption { color: #a9b7cc; font-size: 11px; }

.site-footer { padding: 43px 0 25px; background: #061023; color: #a5b1c4; }
.footer-grid { display: flex; justify-content: space-between; gap: 40px; padding-bottom: 34px; }
.brand-footer { color: var(--ivory); }
.footer-grid > div > p { margin: 17px 0 0; color: #76849b; font-size: 12px; }
.footer-links { display: flex; align-items: start; flex-wrap: wrap; gap: 22px; padding-top: 6px; font-size: 12px; }
.footer-links a:hover { color: var(--orange-light); }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; padding-top: 19px; border-top: 1px solid rgba(142, 169, 217, .15); color: #64738a; font-size: 10px; }

[data-reveal] { opacity: 1; transform: none; transition: opacity .7s ease, transform .7s ease; }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
[data-reveal-delay="80"] { transition-delay: 80ms; }
[data-reveal-delay="100"] { transition-delay: 100ms; }
[data-reveal-delay="120"] { transition-delay: 120ms; }
[data-reveal-delay="160"] { transition-delay: 160ms; }
:focus-visible { outline: 3px solid rgba(255, 180, 99, .9); outline-offset: 4px; }

@media (max-width: 1040px) {
  .site-nav { gap: 15px; }
  .site-nav { font-size: 12px; }
  .site-nav .nav-cta { padding-right: 11px; padding-left: 11px; }
  .hero-grid { gap: 44px; }
  .flow-grid { grid-template-columns: repeat(3, 1fr); }
  .flow-card { min-height: 250px; }
  .flow-card:nth-child(3)::after { display: none; }
  .flow-number { margin-bottom: 40px; }
  .flow-card p { min-height: 75px; }
}

@media (max-width: 800px) {
  .shell { width: min(var(--shell), calc(100% - 40px)); }
  .nav-wrap { min-height: 68px; }
  .menu-toggle { display: block; }
  .site-nav { position: absolute; top: calc(100% + 1px); right: 0; left: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 20px 22px; border-bottom: 1px solid rgba(140, 162, 201, .15); background: rgba(8, 19, 41, .97); box-shadow: 0 20px 30px rgba(0, 0, 0, .22); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 14px 0; border-bottom: 1px solid rgba(140, 162, 201, .12); }
  .site-nav .nav-cta { margin-top: 14px; padding: 12px 14px; border-bottom: 0; text-align: center; }
  .hero { min-height: auto; padding: 80px 0 65px; }
  .hero-grid, .section-head-split, .boundary-grid, .faq-grid, .contact-card { grid-template-columns: 1fr; }
  .hero-grid { gap: 52px; }
  .hero-copy { padding: 0; }
  h1 { font-size: clamp(43px, 10vw, 62px); }
  .hero-art { aspect-ratio: 1.3; }
  .section { padding: 82px 0; }
  .section-head-split { gap: 20px; }
  .section-head { margin-bottom: 36px; }
  .section-head h2 { font-size: clamp(38px, 10vw, 54px); }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-card:nth-child(2)::after, .flow-card:nth-child(4)::after { display: none; }
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .service-card, .service-card-wide { grid-column: span 1; }
  .entry-card { min-height: 360px; padding: 37px 34px 32px; }
  .faq-grid { gap: 45px; }
  .faq-grid .section-head { position: static; }
  .contact-card { gap: 36px; padding: 42px 32px; }
  .contact-side { padding: 28px 0 0; border-top: 1px solid rgba(142, 169, 217, .27); border-left: 0; }
  .footer-grid, .footer-bottom { flex-direction: column; }
  .footer-grid { gap: 25px; }
  .footer-bottom { gap: 8px; }
}

@media (max-width: 560px) {
  .shell { width: min(var(--shell), calc(100% - 32px)); }
  .hero { padding-top: 66px; }
  .eyebrow { font-size: 10px; letter-spacing: .11em; }
  h1 { margin-bottom: 21px; font-size: clamp(40px, 11.5vw, 52px); }
  .hero-lede { font-size: 15px; }
  .hero-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .button { padding-right: 12px; padding-left: 12px; font-size: 12px; }
  .hero-boundary { align-items: flex-start; font-size: 10px; line-height: 1.6; }
  .hero-art { border-radius: 19px; }
  .hero-art figcaption { display: block; }
  .hero-art figcaption strong { display: block; margin-top: 5px; font-size: 11px; }
  .loop-legend { display: grid; grid-template-columns: repeat(3, 1fr); row-gap: 7px; margin-top: 13px; font-size: 10px; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 18px 12px; padding: 22px 0; }
  .trust-item strong { font-size: 11px; }
  .section { padding: 68px 0; }
  .flow-grid, .service-grid, .entry-grid { grid-template-columns: 1fr; }
  .flow-card { min-height: auto; padding: 23px 20px 21px; }
  .flow-card:not(:last-child)::after { display: none; }
  .flow-number { margin-bottom: 25px; }
  .flow-card p { min-height: 0; }
  .service-card, .service-card-wide { grid-column: auto; }
  .service-art { aspect-ratio: 1.22; }
  .service-body { padding: 21px 21px 23px; }
  .service-body p:not(.service-index) { min-height: 0; }
  .entry-card { min-height: 0; padding: 32px 27px 30px; }
  .entry-card h2 { font-size: 38px; }
  .case-note { grid-template-columns: 1fr; gap: 15px; padding: 26px 22px; }
  .case-note-mark { display: none; }
  .case-method { margin-top: 10px; }
  .cooperation-card { padding: 29px 25px; }
  .cooperation-card h3 { font-size: 24px; }
  .boundary-list > div { grid-template-columns: 35px minmax(0, 1fr); gap: 11px; padding: 17px 20px; }
  .faq-list summary { font-size: 14px; }
  .contact-section { padding: 59px 0; }
  .contact-card h2 { font-size: 40px; }
  .contact-qr img { width: 132px; height: 132px; }
  .brand-logo { width: 32px; height: 32px; }
}

@media (max-width: 800px) {
  .answer-grid { grid-template-columns: 1fr; gap: 38px; }
  .answer-intro { max-width: 650px; }
  .case-wall { grid-template-columns: 1fr; }
  .case-card-feature { grid-column: auto; grid-template-columns: 1fr; }
  .case-card-feature .case-visual { min-height: 300px; }
  .case-card-feature .case-content { padding: 27px 24px 25px; }
  .case-disclosure { gap: 10px; }
}

@media (max-width: 560px) {
  .answer-section { padding: 70px 0 76px; }
  .answer-list article { grid-template-columns: 30px minmax(0, 1fr); gap: 12px; padding: 18px 0; }
  .case-toolbar { gap: 7px; margin-bottom: 22px; }
  .case-filter { padding: 8px 10px; font-size: 10px; }
  .case-content, .case-card-feature .case-content { padding: 22px 20px 23px; }
  .case-card-feature .case-visual { min-height: 245px; }
  .case-topline { align-items: start; flex-direction: column; gap: 5px; }
  .case-period { text-align: left; }
  .case-content h3, .case-card:not(.case-card-feature) .case-content h3 { font-size: 24px; }
  .case-summary { min-height: 0; }
  .case-metrics dt { font-size: 17px; }
  .case-disclosure { padding: 15px 16px; }
  .contact-email { font-size: 13px; }
}

@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; }
}