:root {
  --font-latin: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-zh: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Noto Sans CJK SC", "Hiragino Sans GB", sans-serif;
  --font-ja: "Hiragino Sans", "Yu Gothic", Meiryo, "Noto Sans JP", "Noto Sans CJK JP", sans-serif;
  --font-body: var(--font-latin);
  --heading-weight: 700;
  --heading-tracking: -.025em;
  --heading-line: 1.2;
  --subpage-top-space: clamp(24px, 3.5vw, 48px);
  --subpage-content-width: 1040px;
  --header-height: 64.4px;
  --ink: #09202c;
  --muted: #54717c;
  --deep: #f7fbfc;
  --deep-blue: #eaf5f8;
  --aqua: #087e96;
  --line: rgba(24, 89, 108, .18);
  --panel: rgba(255, 255, 255, .78);
  --shadow: 0 28px 70px rgba(16, 71, 88, .12);
}

/* 语言属性同时适用于中文页面中的日文地址。 */
[lang|="zh"] { --font-body: var(--font-zh); --heading-weight: 600; --heading-tracking: 0; --heading-line: 1.35; font-family: var(--font-zh); }
[lang|="ja"] { --font-body: var(--font-ja); --heading-weight: 600; --heading-tracking: 0; --heading-line: 1.35; font-family: var(--font-ja); }
[lang|="en"] { --font-body: var(--font-latin); --heading-weight: 700; --heading-tracking: -.025em; --heading-line: 1.2; font-family: var(--font-latin); }

* { box-sizing: border-box; }
html { background: var(--deep); scrollbar-gutter: stable; }
html:has(.main-nav.is-open) { overflow: hidden; }
body {
  margin: 0;
  color: var(--ink);
  background: #d9f3f5;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  min-width: 0;
}
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }

.page-shell { min-height: 100svh; overflow-x: clip; position: relative; isolation: isolate; }
/* 底图始终存在，手机和图形上下文不可用时仍显示完整水纹。 */
.water-backdrop { position: fixed; inset: -5%; z-index: -1; pointer-events: none; background: #d9f3f5 url("/assets/water-texture-v1.png") center / cover no-repeat; animation: water-drift 24s ease-in-out infinite alternate; transform-origin: center; }
@keyframes water-drift { from { transform: translate3d(-1%, -1%, 0) scale(1.02); } to { transform: translate3d(1%, 1%, 0) scale(1.06); } }
@media (prefers-reduced-motion: reduce) { .water-backdrop { animation: none; transform: none; } }
@media (hover: none), (pointer: coarse), (max-width: 820px) { #water-field, #ferro-fluid { display: none; } }
#water-field, #ferro-fluid { position: fixed; inset: 0; z-index: 0; width: 100%; height: 100%; pointer-events: none; }

.site-header, .site-footer { width: min(1380px, calc(100% - 48px)); margin: auto; position: relative; z-index: 10; }
.header-wrap { position: sticky; top: 0; z-index: 10; transition: background .2s ease, box-shadow .2s ease; }
.header-wrap.is-scrolled { background: rgba(234, 249, 250, .88); backdrop-filter: blur(18px); box-shadow: 0 1px 0 rgba(24, 89, 108, .12); }
.site-header { height: var(--header-height); display: flex; align-items: center; justify-content: space-between; gap: 30px; view-transition-name: site-header; }
.mini-brand { letter-spacing: .18em; font-size: 14px; font-weight: 700; }
.main-nav { display: flex; align-items: center; gap: clamp(14px, 2vw, 32px); }
.main-nav a, .site-footer a { color: var(--muted); font-size: 14px; transition: color .2s ease; }
.main-nav a:hover, .main-nav a[aria-current], .site-footer a:hover { color: var(--ink); }
.header-actions { display: flex; gap: 14px; align-items: center; }
.language-switch { display: flex; gap: 2px; border: 1px solid var(--line); border-radius: 99px; padding: 3px; background: rgba(255, 255, 255, .54); }
.language-switch a, .quiet-button { border: 0; color: var(--muted); background: transparent; font-size: 12px; line-height: 1.4; border-radius: 99px; padding: 7px 9px; }
.language-switch a[aria-current="page"] { background: rgba(77, 197, 211, .18); color: #053b4a; }
.quiet-button { width: 32px; height: 32px; display: grid; place-items: center; border: 1px solid var(--line); padding: 0; transition: color .2s ease, border-color .2s ease, background .2s ease; }
.quiet-button:hover, .quiet-button:focus-visible, .sound-button[aria-pressed="true"] { color: #075a6d; border-color: rgba(8, 126, 150, .42); background: rgba(111, 215, 228, .12); }
.quiet-button svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.55; stroke-linecap: round; stroke-linejoin: round; }
.sound-button svg { width: 16px; height: 16px; }
.sound-button svg path:first-child { fill: currentColor; stroke: none; }
.sound-button:not([aria-pressed="true"]) .sound-wave-two { opacity: .18; }
.menu-button { display: none; }

#app { width: min(1380px, calc(100% - 48px)); margin: 0 auto; position: relative; z-index: 1; view-transition-name: main-content; }
#app:focus { outline: none; }
.page-section { padding: clamp(42px, 7vw, 100px) 0; }
.home {
  --home-top-space: clamp(20px, 5vw, 70px);
  --home-bottom-space: clamp(75px, 9vw, 130px);
  position: relative; display: grid; place-items: center;
  min-height: calc(100svh - var(--header-height));
  padding: var(--home-top-space) 0 var(--home-bottom-space);
  /* 增加字标下方原有留白的一半，保持字标位置不变。 */
  margin-bottom: max(calc(var(--home-bottom-space) / 2), calc((100svh - var(--header-height) - var(--home-top-space) + var(--home-bottom-space) - min(1180px, 100%) / 6.95) / 4));
}
.eyebrow { color: var(--aqua); letter-spacing: .14em; text-transform: uppercase; font-size: 11px; font-weight: 600; margin: 0 0 20px; }
.subpage h1 { font-size: clamp(42px, 5.5vw, 86px); letter-spacing: var(--heading-tracking); line-height: var(--heading-line); margin: 0; font-weight: var(--heading-weight); }
.page-lede { color: #48646f; font-size: 17px; line-height: 1.85; margin: 28px 0 0; max-width: 550px; }
.primary-button, .form-submit { display: inline-flex; min-height: 46px; padding: 10px 19px; align-items: center; justify-content: center; border: 1px solid rgba(121, 239, 243, .55); background: linear-gradient(140deg, #168eaa, #1e435d); color: #effeff; border-radius: 100px; font-size: 14px; line-height: 1.5; font-weight: 600; box-shadow: 0 10px 28px rgba(21, 194, 210, .14); }
.text-button { color: var(--muted); background: transparent; border: 0; padding: 8px 0; font-size: 13px; }
.text-button:hover { color: var(--ink); }

.logo-experience { width: min(1180px, 100%); min-width: 0; position: relative; }
.logo-stage { position: relative; aspect-ratio: 6.95 / 1; isolation: isolate; overflow: visible; transition: opacity .56s ease, transform .62s cubic-bezier(.16,.74,.2,1), filter .56s ease; }
.hero-logo { display: flex; align-items: stretch; justify-content: center; gap: clamp(1px, .35vw, 6px); width: 100%; height: 100%; position: relative; z-index: 2; filter: drop-shadow(0 20px 24px rgba(11, 74, 94, .13)); }
.logo-hotspot { flex: 0 0 auto; width: auto; height: 100%; aspect-ratio: var(--letter-ratio); min-width: 0; margin: 0; padding: 0; border: 0; border-radius: 12px; background: transparent; outline: 0; cursor: pointer; transition: opacity .66s ease, transform .72s cubic-bezier(.16,.74,.2,1), filter .66s ease; }
.logo-letter-image { display: block; width: 100%; height: 100%; object-fit: contain; opacity: 0; transform: translate3d(0, 15px, 0) scale(.965); animation: logo-letter-arrival .84s calc(.08s + var(--letter-index) * .11s) cubic-bezier(.16,.74,.2,1) both; }
.logo-hotspot:focus-visible { outline: 2px solid rgba(12, 134, 158, .72); outline-offset: 3px; }
.logo-experience.is-fading-wordmark .logo-hotspot:not(.is-active) { opacity: 0; transform: translate3d(0, -10px, 0) scale(.965); filter: blur(4px); pointer-events: none; transition-delay: calc(40ms + var(--exit-delay)); }
.logo-experience.is-reading .logo-stage { position: absolute; inset: 50% 0 auto; transform: translate3d(0, -50%, 0); pointer-events: none; }
.logo-experience.is-reading.is-selected-in-flight .logo-hotspot.is-active { opacity: 0; transition: opacity .01ms linear; }
.value-browser {
  --value-title-size: 46px;
  --value-body-size: 24px;
  --value-note-size: 16px;
  font-size: var(--value-body-size);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(390px, .95fr);
  align-items: center;
  gap: clamp(36px, 6vw, 92px);
  min-height: clamp(500px, 64svh, 650px);
  outline: 0;
}
.value-browser[hidden] { display: none; }
.logo-experience.is-opening .value-letter-frame { opacity: 0; }
.logo-experience.is-opening .value-copy-card { opacity: 0; transform: translateX(-38px); }
.logo-experience.is-opening.is-letter-ready .value-letter-frame { opacity: 1; }
.logo-experience.is-opening.is-copy-ready .value-copy-card { animation: value-copy-arrival .59s cubic-bezier(.18,.72,.2,1) both; }
.value-copy-card {
  min-height: 420px;
  padding: clamp(30px, 4vw, 54px);
  border: 1px solid rgba(15, 81, 99, .32);
  border-radius: clamp(36px, 5vw, 72px);
  background: linear-gradient(145deg, rgba(255, 255, 255, .84), rgba(235, 249, 251, .76));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .72), 0 26px 70px rgba(15, 71, 88, .09);
  backdrop-filter: blur(15px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}
.value-copy-heading { width: 100%; margin: 0; padding-bottom: 24px; border-bottom: 1px solid rgba(24, 89, 108, .15); }
.value-copy-heading .eyebrow { margin: 0 0 12px; font-size: var(--value-note-size); letter-spacing: .08em; }
.value-copy-card h2 { max-width: 520px; margin: 0 auto; font-size: var(--value-title-size); letter-spacing: var(--heading-tracking); line-height: 1.4; font-weight: 600; text-wrap: balance; }
.value-description { width: 100%; max-width: 540px; margin: 0 auto; padding-top: 24px; color: #244c5a; font-size: var(--value-body-size); line-height: 1.75; font-weight: 500; text-wrap: pretty; }
.value-annotation { width: 100%; max-width: 34em; margin: 22px auto 0; color: #496572; font-size: var(--value-note-size); line-height: 1.9; text-wrap: pretty; overflow-wrap: anywhere; }
.value-annotation[hidden] { display: none; }
.value-annotation cite { display: block; max-width: 100%; margin-top: 8px; font-style: normal; text-align: center; }
.value-pager { display: grid; grid-template-columns: 44px minmax(310px, 360px) 44px; align-items: center; justify-content: center; gap: clamp(9px, 1.6vw, 20px); min-width: 0; }
.value-letter-frame {
  position: relative;
  width: min(100%, 350px);
  height: clamp(430px, 52vw, 570px);
  justify-self: center;
  overflow: hidden;
  filter: drop-shadow(0 24px 32px rgba(10, 65, 82, .15));
  will-change: transform, opacity;
}
.value-letter-image { position: absolute; left: 50%; top: 50%; width: 100%; height: 100%; max-width: 100%; object-fit: contain; transform: translate(-50%, -50%); will-change: transform; }
.value-flight { position: fixed; z-index: 20; pointer-events: none; transform-origin: center; will-change: transform, opacity; }
.value-flight img { display: block; width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 20px 24px rgba(11, 74, 94, .13)); }
.value-page-button {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  color: #355a68;
  border: 1px solid rgba(24, 89, 108, .28);
  border-radius: 50%;
  background: rgba(255, 255, 255, .42);
  box-shadow: 0 10px 26px rgba(16, 71, 88, .06);
  font-size: var(--value-body-size);
  transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
}
.value-page-button:hover, .value-page-button:focus-visible { color: #006d83; border-color: rgba(8, 126, 150, .56); background: rgba(255, 255, 255, .72); transform: scale(1.06); }
.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; }

.discover-section { grid-column: 1 / -1; padding-top: clamp(68px, 9vw, 135px); }
.value-grid { display: grid; grid-template-columns: repeat(8, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.value-card { background: rgba(7, 27, 38, .36); border: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); min-height: 145px; text-align: left; padding: 20px; color: var(--ink); transition: background .2s ease, transform .2s ease; }
.value-card:hover, .value-card.is-active { background: rgba(29, 95, 114, .34); transform: translateY(-3px); }
.value-card strong { display: block; color: var(--aqua); font-size: 12px; letter-spacing: .12em; }
.value-card span { display: block; margin-top: 43px; color: var(--muted); font-size: 12px; line-height: 1.4; }
.portal-row { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; padding-top: 18px; }
.portal-card { min-height: 170px; border: 1px solid var(--line); padding: 22px; border-radius: 16px; background: linear-gradient(145deg, rgba(40, 115, 135, .16), rgba(1, 8, 14, .25)); display: flex; flex-direction: column; justify-content: flex-end; transition: transform .25s ease, border-color .25s ease; }
.portal-card:hover { transform: translateY(-5px); border-color: rgba(147, 244, 246, .52); }
.portal-card strong { font-size: 20px; letter-spacing: -.04em; }
.portal-card span { color: var(--muted); font-size: 12px; margin-top: 8px; line-height: 1.5; }

.subpage { width: min(100%, var(--subpage-content-width)); margin-inline: auto; min-height: calc(100svh - 156px); padding-top: var(--subpage-top-space); }
.subpage h1 { max-width: 850px; }
.page-lede { max-width: 700px; }
.content-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 54px; }
.content-card { border: 1px solid var(--line); border-radius: 20px; padding: clamp(23px, 3vw, 42px); background: var(--panel); box-shadow: 0 20px 55px rgba(16, 71, 88, .08); }
.content-card h2 { margin: 0; letter-spacing: var(--heading-tracking); line-height: var(--heading-line); font-size: 27px; font-weight: var(--heading-weight); }
.content-card p, .content-card li { color: #4c6872; font-size: 16px; line-height: 1.8; }
.content-card ul { padding-left: 18px; margin: 18px 0 0; }
.content-card .card-tag { display: block; color: var(--aqua); font-size: 11px; letter-spacing: .11em; margin-bottom: 12px; }
.content-card.full { grid-column: 1 / -1; }
.company-page .value-list { margin-top: 0; }
.business-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
.business-card { min-height: 0; display: flex; flex-direction: column; overflow: hidden; position: relative; }
.business-card::after { content: ""; position: absolute; width: 240px; height: 240px; right: -130px; bottom: -150px; border-radius: 50%; border: 1px solid rgba(22, 147, 171, .13); box-shadow: 0 0 0 34px rgba(22, 147, 171, .025), 0 0 0 68px rgba(22, 147, 171, .018); pointer-events: none; }
.business-heading { display: flex; align-items: center; gap: 12px; margin-bottom: 26px; }
.business-heading .card-tag { margin: 0; }
.subpage.business-page h1 { max-width: 1080px; font-size: clamp(34px, 5vw, 72px); line-height: var(--heading-line); letter-spacing: var(--heading-tracking); white-space: pre-line; text-wrap: balance; }
.business-page .page-lede { max-width: 780px; }
.content-card .business-services li { padding: 24px 0; gap: 14px; }
.business-services li > div { min-width: 0; }
.service-heading { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; }
.service-heading h4 { margin: 0; color: #163b49; font-size: clamp(19px, 2vw, 24px); font-weight: 600; line-height: 1.5; }
.service-status { color: #276271; background: rgba(27, 136, 155, .08); border: 1px solid rgba(27, 136, 155, .18); border-radius: 999px; padding: 2px 10px; font-size: 12px; line-height: 1.6; }
.business-services li p { margin: 8px 0 0; max-width: 780px; font-size: 16px; }
.business-page .business-cta { max-width: 100%; white-space: normal; }
.business-number { color: #7c98a2; font: 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.business-card .business-title { margin: 0; letter-spacing: var(--heading-tracking); line-height: var(--heading-line); font-weight: var(--heading-weight); font-size: clamp(31px, 3vw, 48px); max-width: 520px; }
.business-intro { max-width: 610px; margin-top: 22px; }
.service-label { margin: 27px 0 5px !important; color: var(--aqua) !important; font-size: 10px !important; letter-spacing: .12em; text-transform: uppercase; }
.content-card .service-list { list-style: none; padding: 0; margin: 0; counter-reset: service; }
.service-list li { counter-increment: service; display: grid; grid-template-columns: 28px 1fr; align-items: baseline; gap: 6px; padding: 9px 0; border-bottom: 1px solid rgba(24, 89, 108, .11); }
.service-list li::before { content: "0" counter(service); color: #7997a2; font: 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.business-cta { align-self: flex-start; margin-top: 30px; position: relative; z-index: 1; }
.business-card-secondary { background: linear-gradient(145deg, rgba(255, 255, 255, .84), rgba(231, 247, 249, .72)); }
.business-note { margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 12px !important; }
.profile-list { display: grid; grid-template-columns: 190px 1fr; gap: 0; margin: 17px 0 0; }
.profile-list div { padding: 15px 0; border-bottom: 1px solid var(--line); color: #35535e; font-size: 16px; overflow-wrap: anywhere; }
.profile-list div:nth-child(odd) { color: var(--muted); }

.value-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px 30px; margin-top: 21px; }
.value-list div { border-top: 1px solid var(--line); padding: 13px 0; }
.value-list strong { color: var(--aqua); font-size: 13px; letter-spacing: .09em; }
.value-list span { display: block; color: var(--muted); font-size: 16px; margin-top: 7px; line-height: 1.55; }
.value-list p { max-width: 560px; margin: 9px 0 4px; color: #4c6872; font-size: 16px; line-height: 1.8; }

.form-card { margin-top: 54px; }
.subpage.company-page h1, .subpage.collaboration-page h1 { max-width: none; font-size: clamp(34px, 4.5vw, 64px); text-wrap: balance; }
.collaboration-page .form-card { margin-top: clamp(24px, 3vw, 40px); }
.collaboration-page .form-grid { margin-top: 0; }
.collaboration-page .field { min-width: 0; }
.collaboration-page .field textarea { min-height: 140px; }
.collaboration-page .contact-options-note { grid-column: 1 / -1; margin: -6px 0 2px; color: var(--muted); font-size: 13px; line-height: 1.6; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 28px; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { color: #35535e; font-size: 14px; font-weight: 500; }
.field input, .field textarea { width: 100%; font-size: 16px; line-height: 1.6; color: var(--ink); background: rgba(244, 250, 252, .82); border: 1px solid rgba(44, 122, 143, .22); border-radius: 10px; min-height: 44px; padding: 10px 12px; outline: 0; }
.field textarea { min-height: 118px; resize: vertical; }
.field input:focus, .field textarea:focus { border-color: var(--aqua); box-shadow: 0 0 0 3px rgba(86, 216, 231, .12); }
.consent-row { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: 14px; line-height: 1.7; margin: 20px 0; }
.consent-row input { margin-top: 3px; accent-color: var(--aqua); }
.form-error { min-height: 22px; color: #a13930; font-size: 14px; margin: 8px 0 0; }
.form-success { border-left: 2px solid var(--aqua); padding: 17px; background: rgba(71, 219, 218, .08); color: #164854; font-size: 16px; line-height: 1.7; margin-top: 22px; }

.site-footer { display: flex; justify-content: space-between; align-items: center; padding: 34px 0; color: var(--muted); font-size: 12px; border-top: 1px solid rgba(161, 216, 224, .12); }
::view-transition-old(main-content) { animation: route-out .2s ease both; }
::view-transition-new(main-content) { animation: route-in .52s cubic-bezier(.18, .72, .2, 1) both; }
::view-transition-old(site-header), ::view-transition-new(site-header) { animation: none; }
@keyframes route-out { to { opacity: 0; transform: translateY(-5px); } }
@keyframes route-in { from { opacity: 0; transform: translateY(12px); } }
@keyframes logo-letter-arrival { from { opacity: 0; transform: translate3d(0, 15px, 0) scale(.965); } to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); } }
@keyframes value-copy-arrival { from { opacity: 0; transform: translateX(-38px); } to { opacity: 1; transform: translateX(0); } }

@media (max-width: 980px) {
  .home { --home-top-space: 20px; }
  .value-browser { grid-template-columns: minmax(0, 1.05fr) minmax(330px, .8fr); gap: 28px; }
  .value-copy-card { min-height: 400px; }
  .value-letter-frame { width: min(100%, 320px); height: 450px; }
}
@media (max-width: 820px) {
  .home { align-items: start; }
  .logo-experience.is-reading { padding: 18px 0 38px; }
  .value-browser { --value-title-size: 34px; --value-body-size: 21px; --value-note-size: 15px; grid-template-columns: 1fr; gap: 24px; min-height: 0; }
  .value-copy-card { min-height: 310px; padding: 28px; border-radius: 38px; }
  .value-copy-heading { padding-bottom: 20px; }
  .value-description { padding-top: 20px; }
  .value-pager { width: min(100%, 380px); margin: auto; grid-template-columns: 44px minmax(0, 260px) 44px; gap: 10px; }

  .value-letter-frame { width: min(100%, 260px); height: clamp(240px, 63vw, 300px); }
}
@media (max-width: 680px) {
  :root { --header-height: 49px; }
  .site-header, #app, .site-footer { width: min(100% - 28px, 1380px); }
  .site-header { gap: 10px; }
  .main-nav {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    width: min(250px, calc(100vw - 28px));
    display: grid;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid rgba(30, 101, 121, .17);
    border-radius: 16px;
    background: rgba(248, 252, 253, .96);
    box-shadow: 0 24px 60px rgba(10, 60, 75, .18);
    backdrop-filter: blur(22px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(.98);
    transform-origin: top right;
    transition: opacity .2s ease, visibility .2s ease, transform .2s ease;
  }
  .main-nav::before { content: attr(aria-label); padding: 8px 12px 11px; color: var(--aqua); font-size: 9px; letter-spacing: .16em; }
  .main-nav a { padding: 13px 12px; border-top: 1px solid rgba(24, 89, 108, .1); font-size: 14px; }
  .main-nav a::after { content: "↓"; float: right; opacity: .38; }
  .main-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
  .menu-button { display: grid; }
  .mini-brand { font-size: 12px; }
  .header-actions { gap: 5px; }
  .language-switch a { padding: 6px 7px; }
  .home { --home-top-space: 10px; --home-bottom-space: 48px; }
  .subpage h1 { font-size: 45px; }
  .page-lede { font-size: 16px; }
  .logo-experience.is-reading { padding-top: 6px; }
  .hero-logo { gap: 1px; }
  .value-copy-card { min-height: 292px; padding: 23px; border-radius: 32px; }
  .value-copy-heading { padding-bottom: 16px; }
  .value-description { padding-top: 18px; line-height: 1.75; }
  .value-annotation { margin-top: 18px; }
  .portal-row, .content-grid, .business-grid, .value-list, .form-grid { grid-template-columns: 1fr; }
  .content-card.full { grid-column: auto; }
  .business-card { min-height: 0; }
  .business-cta { margin-top: 30px; }
  .business-note { margin-top: 34px; }
  .profile-list { grid-template-columns: 110px 1fr; }
  .field.full { grid-column: auto; }
  .site-footer { padding: 26px 0; }
}
@media (max-width: 360px) {
  .language-switch a { padding: 5px; font-size: 10px; }
  .quiet-button { width: 28px; height: 28px; }
  .header-actions { gap: 3px; }
}
@media (prefers-reduced-motion: reduce) {
  body *, body *::before, body *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
  body .logo-letter-image { animation: none !important; opacity: 1; transform: none; }
}

.business-brand-art { width: min(100%, 820px); margin: 8px auto 24px; }
.mato-logo { display: block; width: 100%; height: auto; }

/* 店铺字标通过视口展示原始招牌，不修改原图。 */
.mato-card { background: linear-gradient(145deg, rgba(255, 253, 247, .95), rgba(253, 246, 228, .91)); border-color: rgba(168, 136, 83, .28); }
.mato-card::after { display: none; }
.mato-brand-stage { width: 100%; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: center; gap: clamp(16px, 3vw, 40px); padding: clamp(18px, 3vw, 36px); border: 1px solid rgba(168, 136, 83, .16); border-radius: 16px; background: #fff7e3; }
.mato-wordmark-wrap { min-width: 0; width: 100%; }
.mato-wordmark { display: block; width: 100%; height: auto; aspect-ratio: 4500 / 1250; overflow: hidden; }
.content-card .mato-description { white-space: pre-line; width: min(100%, 780px); margin: 30px auto 0; text-align: center; font-size: clamp(16px, 1.4vw, 17px); line-height: 1.9; color: #574a40; }
.mato-location { width: min(100%, 780px); margin: 26px auto 0; padding-top: 24px; border-top: 1px solid rgba(168, 136, 83, .24); text-align: center; }
.mato-location h3 { margin: 0 0 8px; color: #8d241d; font-size: 13px; font-weight: 600; letter-spacing: .08em; }
.mato-location address { font-style: normal; color: #574a40; font-size: 15px; line-height: 1.85; overflow-wrap: anywhere; }
.mato-mascot-scene { min-width: 0; margin: 0; }
.mato-mascot-scene img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: contain; border-radius: 12px; }
.mato-mascot-labels { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; margin-bottom: clamp(8px, 1.2vw, 16px); text-align: center; }
.mato-mascot-label { min-width: 0; line-height: 1.6; }
.mato-mascot-name { display: inline-block; color: #8d241d; font-size: clamp(11px, 1.25vw, 16px); font-weight: 600; white-space: nowrap; }

@media (max-width: 680px) {
  .mato-brand-stage { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px; padding: 14px 8px; }
  .mato-mascot-scene img { border-radius: 8px; }
  .content-card .mato-description { margin-top: 24px; }
  .mato-location { margin-top: 22px; padding-top: 20px; }
}

@media (max-width: 680px) {
  .mato-mascot-name { display: block; }
}
@media (max-width: 360px) {
  .mato-brand-stage { grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); }
}

/* 首页连续展示各个区域，联系表单使用独立页面。 */
.landing-section { width: min(100%, var(--subpage-content-width)); margin-inline: auto; padding-bottom: clamp(80px, 10vw, 144px); scroll-margin-top: calc(var(--header-height) + 32px); }
.landing-section:focus { outline: none; }
.section-title { margin: 0; color: var(--ink); font-size: clamp(34px, 4.5vw, 64px); font-weight: var(--heading-weight); line-height: var(--heading-line); letter-spacing: var(--heading-tracking); text-wrap: balance; }
.landing-contact { min-height: calc(100svh - var(--header-height) - 32px); padding-bottom: clamp(48px, 7vw, 96px); }
.contact-banner { border: 1px solid var(--line); border-radius: 28px; background: var(--panel); padding: clamp(38px, 6vw, 76px) 24px; text-align: center; }
.contact-entry { margin-top: 30px; gap: 24px; padding-inline: 28px; min-height: 52px; font-size: 16px; }
.contact-page h1 { max-width: none; font-size: clamp(34px, 4.5vw, 64px); text-wrap: balance; }
.contact-tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; margin-top: clamp(24px, 3vw, 40px); padding: 6px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.45); }
.contact-tabs button { padding: 14px 12px; min-width: 0; border: 0; border-radius: 12px; background: transparent; color: var(--muted); font-size: 18px; font-weight: 600; line-height: 1.5; }
.contact-tabs button[aria-selected="true"] { background: var(--ink); color: #f2fbfc; box-shadow: 0 4px 14px rgba(16,71,88,.12); }
.contact-tabs button:focus-visible, .contact-entry:focus-visible { outline: 2px solid var(--aqua); outline-offset: 4px; }
.contact-panel[hidden] { display: none; }
.contact-page .form-card { margin-top: 24px; }
.contact-page .form-grid { margin-top: 0; }
.contact-page .field { min-width: 0; }
@media (max-width: 820px) {
  .home { align-items: center; }
}
@media (max-width: 680px) {
  .landing-section { scroll-margin-top: calc(var(--header-height) + 24px); }
  .landing-section .content-grid { margin-top: 32px; }
  .contact-tabs button { font-size: 15px; padding: 12px 6px; }
  .contact-entry { font-size: 14px; gap: 14px; padding-inline: 22px; }
}

/* 业务卡片以提供的品牌标志和宣传语开头。 */
.landing-section.business-page .business-grid { margin-top: 0; }
.business-logo { display: block; width: clamp(220px, 28vw, 340px); max-width: 100%; height: auto; }
.content-card .business-tagline { margin: 24px 0 28px; max-width: 780px; font-size: clamp(20px, 2.4vw, 28px); line-height: 1.6; font-weight: 600; color: var(--ink); white-space: pre-line; }
.company-page > .section-title { text-align: center; }
.company-values-label { margin: 0 0 22px; color: var(--ink); font-size: clamp(17px, 1.6vw, 20px); line-height: 1.6; font-weight: 600; text-align: left; }

/* 隐藏防垃圾字段但保留机器人可能访问的表单结构。 */
.form-trap { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.form-submit:disabled { cursor: wait; opacity: .65; }
.privacy-copy section + section { margin-top: 2rem; }
.privacy-copy h2 { font-size: 1.2rem; margin: 0 0 .75rem; }
.privacy-copy p { line-height: 1.85; }

/* 正文与浏览器共用静态版式，让无脚本抓取和正常浏览显示相同内容。 */
.logo-hotspot[data-value="0"] { --letter-index: 0; --letter-ratio: 0.8132; }
.logo-hotspot[data-value="1"] { --letter-index: 1; --letter-ratio: 0.781; }
.logo-hotspot[data-value="2"] { --letter-index: 2; --letter-ratio: 0.6488; }
.logo-hotspot[data-value="3"] { --letter-index: 3; --letter-ratio: 0.7686; }
.logo-hotspot[data-value="4"] { --letter-index: 4; --letter-ratio: 0.7033; }
.logo-hotspot[data-value="5"] { --letter-index: 5; --letter-ratio: 0.614; }
.logo-hotspot[data-value="6"] { --letter-index: 6; --letter-ratio: 1.0008; }
.logo-hotspot[data-value="7"] { --letter-index: 7; --letter-ratio: 1.205; }

.service-detail-link { display: inline-block; margin-top: 14px; color: #086979; font-size: 15px; font-weight: 600; text-underline-offset: 4px; text-decoration: underline; }
.service-detail-link:hover { color: var(--ink); }
.channel-links { display: flex; flex-wrap: wrap; gap: 10px 20px; padding: 0; margin: 18px 0 0; list-style: none; }
.business-services .channel-links li { display: block; border: 0; padding: 0; counter-increment: none; }
.business-services .channel-links li::before { content: none; }
.channel-links a { color: #086979; font-size: 14px; line-height: 1.7; text-decoration: underline; text-underline-offset: 4px; overflow-wrap: anywhere; }
.service-page { padding-bottom: 80px; }
.service-back { display: inline-block; margin-bottom: 28px; color: #315765; font-size: 15px; }
.service-page h1 { max-width: 940px; font-size: clamp(30px, 4.2vw, 54px); line-height: 1.4; text-wrap: balance; }
.service-page-header .eyebrow { margin-bottom: 12px; }
.service-page-lead { max-width: 780px; color: #315765; font-size: clamp(16px, 1.7vw, 19px); line-height: 1.9; margin: 24px 0 20px; }
.service-page-sections { display: grid; gap: 24px; margin-top: 36px; }
.service-page .content-card { padding: clamp(22px, 4vw, 42px); }
.service-page .content-card h2 { margin: 0 0 18px; font-size: clamp(21px, 2.4vw, 28px); line-height: 1.5; letter-spacing: 0; font-weight: 600; }
.service-page .content-card p, .service-bullets { font-size: 16px; line-height: 1.95; color: #315765; }
.service-bullets { padding-left: 1.4em; margin: 18px 0 0; }
.service-bullets li + li { margin-top: 8px; }
.service-faq details { border-top: 1px solid var(--line); padding: 18px 0; }
.service-faq details:last-child { padding-bottom: 0; }
.service-faq summary { cursor: pointer; color: var(--ink); font-weight: 600; font-size: 16px; line-height: 1.8; }
.service-faq summary:focus-visible { outline: 2px solid #086979; outline-offset: 4px; }
.service-faq details p { margin: 12px 0 0; }
.service-contact { margin: 36px 0 30px; }
.service-contact p { font-size: 14px; margin: 18px 0 0; color: #315765; }
.related-services { display: flex; flex-wrap: wrap; gap: 18px 32px; border-top: 1px solid var(--line); padding-top: 24px; }
.related-services a { color: #086979; font-size: 15px; text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 480px) {
  .service-page .primary-button { width: 100%; white-space: normal; text-align: center; line-height: 1.6; }
}