/* 作者：mos | 创建时间：2026-10-06 | 功能：品牌排版系统、响应式布局、动效与无障碍降级。 */
@font-face {
    font-family: "Brand Display";
    src: url("brand-display.woff") format("woff");
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}
:root {
    --paper: #f3f1ec;
    --ink: #252525;
    --charcoal: #181918;
    --muted: #5c5d59;
    --accent: #615d53;
    --line: #d6d3cc;
    --stone: #e9e6df;
    --white: #ffffff;
    --display: "Brand Display", "Songti SC", "SimSun", Georgia, serif;
    --ease: cubic-bezier(.22, 1, .36, 1);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
::selection { color: var(--paper); background: var(--charcoal); }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; }
svg, img { display: block; }
.container { width: min(1400px, calc(100% - 112px)); margin-inline: auto; }
.section-anchor { scroll-margin-top: 106px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 99; padding: 14px 22px; background: var(--charcoal); color: var(--white); }
.skip-link:focus { top: 14px; }
.site-header { position: sticky; top: 0; z-index: 20; color: var(--paper); background: var(--charcoal); border-bottom: 1px solid #44443e; transition: box-shadow .3s; }
.site-header.has-scrolled { box-shadow: 0 4px 24px #1718130d; }
.header-inner { display: flex; justify-content: space-between; align-items: center; min-height: 94px; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark { width: 35px; height: 35px; color: currentColor; }
.brand strong { display: block; font-weight: 650; font-size: 22px; letter-spacing: 3px; }
.brand small { display: block; color: var(--muted); font-size: 10px; letter-spacing: 2px; margin-top: 5px; }
nav { display: flex; gap: 34px; align-items: center; font-size: 13px; }
nav a { display: inline-flex; align-items: center; gap: 8px; position: relative; min-height: 44px; }
nav a > span:first-child { font-size: 9px; font-family: Arial, sans-serif; color: var(--muted); }
nav a::after { content: ""; position: absolute; left: 0; bottom: 6px; width: 100%; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .35s var(--ease); }
nav a:hover::after, nav a.active::after { transform: scaleX(1); transform-origin: left; }
nav .nav-contact { border: 1px solid var(--charcoal); padding: 0 19px; gap: 23px; min-height: 46px; transition: background .25s, color .25s; }
nav .nav-contact > span { font-size: 17px !important; color: inherit !important; }
nav .nav-contact::after { display: none; }
nav .nav-contact:hover { background: var(--charcoal); color: var(--paper); }
.menu-toggle { display: none; }
.hero { padding: 33px 0 0; color: var(--paper); background: var(--charcoal); }
.site-header .brand small, .site-header nav a > span:first-child { color: #b5b3a9; }
.site-header nav .nav-contact { border-color: #77776e; }
.site-header nav .nav-contact:hover { color: var(--charcoal); background: var(--paper); }
.site-header a:focus-visible, .site-header button:focus-visible, .hero a:focus-visible { outline-color: #ddd2b9; }
.hero .hero-description, .hero .hero-caption, .hero .hero-art figcaption, .hero .hero-bottom { color: #c1bfb5; }
.hero .accent-word { color: #bdb6a7; }
.hero .status-dot { background: #c6b597; }
.hero .hero-bottom { border-color: #44443e; }
.hero .scroll-link > span { color: var(--paper); }
.hero .button-dark { color: var(--charcoal); background: var(--paper); }
.hero .button-dark:hover { background: #d6d0c1; }
.hero-topline, .hero-bottom { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.eyebrow { margin: 0; display: flex; gap: 11px; align-items: center; font-size: 12px; line-height: 1.8; letter-spacing: 1.4px; font-weight: 500; }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.microtype { font-family: Arial, sans-serif; font-size: 10px; line-height: 1.5; letter-spacing: 2px; }
.hero-grid { position: relative; display: flex; align-items: center; min-height: 670px; padding: 60px 0 65px; }
.hero-copy { position: relative; z-index: 2; width: 76%; pointer-events: none; }
.hero-copy a { pointer-events: auto; }
h1 { font-family: var(--display); font-size: clamp(95px, 10.8vw, 166px); font-weight: 600; letter-spacing: -7px; line-height: 1.13; margin: 0 0 44px; }
h1 > span { display: block; }
h1 > span:first-child { font-size: clamp(30px, 3vw, 45px); letter-spacing: 1px; margin-bottom: 25px; }
.accent-word { color: var(--accent); }
.hero-description { margin: 0 0 32px; color: var(--muted); font-size: 14px; line-height: 2; }
.button { display: inline-flex; justify-content: space-between; align-items: center; gap: 38px; padding: 0 23px; min-height: 57px; border: 1px solid transparent; font-size: 13px; transition: background .3s, color .3s; }
.button-dark { background: var(--charcoal); color: var(--paper); }
.button-dark:hover { background: #373832; }
.button-arrow { font-family: Arial, sans-serif; font-size: 22px; transition: transform .35s var(--ease); }
.button:hover .button-arrow { transform: translate(3px, -3px); }
.hero-caption { display: flex; gap: 21px; margin: 40px 0 0; color: var(--muted); font-size: 11px; }
.caption-index { font-family: Arial, sans-serif; letter-spacing: 1px; }
.hero-art { position: absolute; inset: -30px -56px 0 auto; width: 65%; margin: 0; padding: 0; }
.hero-art picture { display: block; overflow: hidden; height: 100%; background: #151613; mask-image: linear-gradient(to right, transparent, #000 28%, #000 92%, transparent), linear-gradient(to bottom, transparent, #000 13%, #000 88%, transparent); mask-composite: intersect; }
.hero-art img { width: 100%; height: 100%; object-fit: cover; object-position: center 55%; transition: transform 1.4s var(--ease); }
.hero-art:hover img { transform: scale(1.025); }
.hero-art figcaption { display: flex; justify-content: space-between; align-items: center; position: absolute; bottom: 22px; left: 38%; right: 56px; padding: 8px 10px; background: var(--charcoal); font-size: 10px; color: var(--muted); letter-spacing: .8px; }
.hero-art figcaption span:first-child { font-family: Arial, sans-serif; letter-spacing: 2px; }
.hero-bottom { border-top: 1px solid var(--line); padding: 24px 0; font-size: 11px; color: var(--muted); }
.scroll-link { display: inline-flex; gap: 28px; min-height: 44px; align-items: center; }
.scroll-link > span { font-size: 19px; color: var(--ink); }
.section { padding: 105px 0; }
.section-kicker { display: flex; justify-content: space-between; gap: 25px; padding-bottom: 30px; margin-bottom: 43px; border-bottom: 1px solid var(--line); }
.section-kicker > .microtype { color: var(--muted); }
h2 { font-family: var(--display); font-size: clamp(36px, 4.2vw, 62px); line-height: 1.45; font-weight: 600; letter-spacing: -2px; margin: 0; }
.about { background: var(--stone); }
.about-grid { display: grid; grid-template-columns: 1fr; gap: 65px; }
.statement { font-size: clamp(40px, 6.1vw, 91px); line-height: 1.28; }
.about-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 0 80px; max-width: none; }
.about-copy .lead { grid-row: 1 / 4; }
.about-copy .text-link { justify-self: start; }
.about-copy p { font-size: 14px; color: var(--muted); line-height: 2.1; margin: 0 0 23px; }
.about-copy .lead { color: var(--ink); font-size: 22px; line-height: 1.8; margin-bottom: 30px; }
.text-link { display: inline-flex; gap: 26px; align-items: center; min-height: 44px; font-size: 13px; padding: 7px 0; border-bottom: 1px solid currentColor; }
.text-link > span[aria-hidden] { font-size: 19px; transition: transform .35s var(--ease); }
.text-link:hover > span[aria-hidden] { transform: translate(3px, -3px); }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 65px; }
.principles > div { display: flex; flex-direction: column; gap: 17px; border-top: 1px solid #cdcac0; padding-top: 23px; }
.principle-en { font-family: Georgia, "Times New Roman", serif; font-size: clamp(25px, 3.15vw, 45px); letter-spacing: -1px; font-style: italic; }
.principles > div > span:last-child { font-size: 12px; color: var(--muted); letter-spacing: 1px; }
.section-heading { display: flex; gap: 45px; justify-content: space-between; align-items: flex-end; margin-bottom: 45px; }
.section-heading > p { font-size: 14px; color: var(--muted); line-height: 2; margin: 0 0 9px; }
.services .section-heading h2 { font-size: clamp(42px, 5.7vw, 82px); line-height: 1.25; }
.service-item { border-top: 1px solid var(--line); transition: background .35s, color .35s; }
.service-item[open] { background: #202329; color: var(--paper); padding-inline: 28px; border-color: #202329; }
.service-item[open] .service-title { color: var(--paper); }
.service-item[open] .service-number { color: #a4b8ff; }
.service-item[open] .service-en, .service-item[open] .service-brief, .service-item[open] .service-body p, .service-item[open] .service-body li { color: #d0d4df; }
.service-item[open] .service-body p:first-child { color: var(--paper); font-size: 20px; }
.service-item[open] .service-body li { border-color: #555c6a; }
.service-item[open] .service-toggle { background: #3553dc; border-color: #3553dc; }
.service-item[open] a:focus-visible, .service-item[open] summary:focus-visible { outline-color: #a4b8ff; }
.service-item summary:hover .service-title { transform: translateX(8px); }
.service-item:last-child { border-bottom: 1px solid var(--line); }
.service-item summary { list-style: none; display: grid; grid-template-columns: 90px 1fr 230px 50px; gap: 25px; align-items: center; padding: 43px 0; cursor: pointer; }
.service-item summary::-webkit-details-marker { display: none; }
.service-number { font-family: Georgia, serif; font-size: 46px; font-style: italic; color: var(--accent); }
.service-name { display: flex; flex-direction: column; gap: 9px; }
.service-title { font-family: var(--display); font-weight: 600; font-size: 42px; transition: transform .35s var(--ease); }
.service-en { font-family: Arial, sans-serif; color: var(--muted); font-size: 11px; letter-spacing: 1px; }
.service-brief { color: var(--muted); font-size: 13px; }
.service-toggle { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 50%; font-family: Arial, sans-serif; font-size: 25px; line-height: 1; transition: background .25s, color .25s; }
.service-item summary:hover .service-toggle { background: var(--charcoal); color: var(--paper); border-color: var(--charcoal); }
.toggle-close, .service-item[open] .toggle-open { display: none; }
.service-item[open] .toggle-close { display: inline; }
.service-body { display: grid; grid-template-columns: 1.35fr 1fr; gap: 20px 60px; padding: 0 75px 35px 115px; animation: panel-in .45s var(--ease) both; }
.service-body p { font-size: 14px; line-height: 2; color: var(--muted); margin: 0 0 13px; }
.service-body p:first-child { color: var(--ink); }
.service-body ul { list-style: none; padding: 0; margin: 0; }
.service-body li { border-bottom: 1px solid var(--line); padding: 11px 0; color: var(--muted); font-size: 12px; }
.service-body li::before { content: "—"; padding-right: 12px; }
.service-body .text-link { justify-self: start; }
.approach { color: var(--paper); background: #111724; }
.approach .section-kicker { border-color: #65665e; }
.approach .section-kicker > .microtype { color: #c9c9be; }
.approach a:focus-visible, .approach button:focus-visible { outline-color: #c6b597; }
.method-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 90px; }
.method-intro > p { font-size: 14px; line-height: 2; color: #c9c9be; margin: 25px 0 32px; }
.method-tabs { display: none; flex-direction: column; max-width: 390px; }
.method-tabs.is-enhanced { display: flex; }
.method-tabs button { display: flex; gap: 25px; align-items: center; position: relative; min-height: 59px; padding: 0; color: #c9c9be; background: transparent; border: 0; border-top: 1px solid #65665e; text-align: left; font-size: 14px; transition: background .3s, padding .3s, color .3s; }
.method-tabs button:last-child { border-bottom: 1px solid #65665e; }
.method-tabs button > span { font-family: Arial, sans-serif; font-size: 11px; }
.method-tabs button[aria-selected="true"] { color: #ffffff; background: #3553dc; padding-inline: 16px; border-color: #3553dc; }
.method-tabs button[aria-selected="true"]::after { content: "↗"; position: absolute; right: 8px; font-size: 21px; }
.method-panel { position: relative; padding: 28px 35px 35px; min-height: 510px; background: #1a243b; border: 1px solid #53607b; overflow: hidden; }
.method-panel[hidden] { display: none; }
.method-panel:focus-visible { outline: 2px solid #c6b597; outline-offset: 8px; }
.method-panel:not([hidden]) { animation: panel-in .45s var(--ease) both; }
.panel-number { display: block; font-family: Arial, sans-serif; font-size: clamp(150px, 19vw, 270px); font-weight: 500; letter-spacing: -20px; line-height: .95; color: transparent; -webkit-text-stroke: 1px #8da5ec; margin-bottom: 27px; }
.method-panel .microtype { color: #c9c9be; font-size: 10px; margin: 0 0 19px; }
.method-panel h3 { font-family: var(--display); font-weight: 600; font-size: 34px; letter-spacing: -1px; line-height: 1.6; margin: 0 0 22px; }
.method-panel > p:not(.microtype) { font-size: 14px; line-height: 2; color: #c9c9be; max-width: 420px; margin: 0; }
.panel-foot { margin-top: 36px; border-top: 1px solid #65665e; padding-top: 22px; display: flex; flex-direction: column; gap: 12px; font-size: 11px; line-height: 1.8; color: #c9c9be; }
.panel-foot span:first-child { color: var(--paper); }
.company { position: relative; background: #e4e6e8; }
.company .container { position: relative; }
.company-year { margin: 0 0 30px; font-family: Arial, sans-serif; font-size: clamp(90px, 12vw, 172px); line-height: 1; letter-spacing: -10px; color: #39445c; }
.company-year span { display: block; font-size: 11px; letter-spacing: 2px; margin-top: 15px; color: var(--muted); }
.company-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 90px; }
.company-details { padding: 25px 32px; background: #f3f4f5; border-top: 3px solid #3553dc; align-self: start; margin: 0; }
.company-details > div:last-child { border-bottom: 0; }
.company-note { font-size: 14px; color: var(--muted); line-height: 2; margin: 27px 0 24px; }
.company-details > div { display: grid; grid-template-columns: 155px 1fr; gap: 18px; padding: 25px 0; border-bottom: 1px solid var(--line); font-size: 14px; line-height: 1.8; }
.company-details > div:first-child { border-top: 0; }
.company-details dt { color: var(--muted); }
.company-details dd { margin: 0; overflow-wrap: anywhere; }
.credit-code { font-family: Consolas, monospace; letter-spacing: .6px; }
.contact { color: var(--paper); background: #202e84; }
.contact .section-kicker { border-color: #65665e; }
.contact .section-kicker > .microtype, .contact-grid > div > p, .contact .contact-domain .microtype { color: #c9c9be; }
.contact .accent-word { color: #d6ddff; }
.contact .copy-button { color: var(--paper); }
.contact a:focus-visible, .contact button:focus-visible, .site-footer a:focus-visible { outline-color: #ddd2b9; }
.contact-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 90px; }
.contact h2 { font-size: clamp(44px, 6.3vw, 90px); line-height: 1.25; }
.contact-orbit { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 50px; padding: 20px 0; border-top: 1px solid #8493ce; font-size: 13px; }
.contact-orbit > span:last-child { display: grid; place-items: center; width: 100px; height: 100px; border: 1px solid #abb9f0; border-radius: 50%; font-family: Arial, sans-serif; font-size: 52px; transition: transform .4s var(--ease), background .4s, color .4s; }
.contact-orbit:hover > span:last-child { transform: rotate(45deg); background: var(--paper); color: #202e84; }
.contact-grid > div > p { font-size: 14px; line-height: 2; margin: 29px 0 0; }
.contact-panel { align-self: center; border-left: 1px solid #c9c6ba; padding: 10px 0 0 42px; }
#contact-information { scroll-margin-top: 120px; }
.contact-panel .contact-caption { font-size: 11px; margin: 0 0 23px; }
.contact-panel h3 { font-family: var(--display); font-size: 27px; margin: 0 0 17px; font-weight: 600; }
.contact-panel #contact-address { font-size: 14px; margin: 0 0 18px; }
.copy-button { background: transparent; border: 0; border-bottom: 1px solid currentColor; color: var(--ink); }
.contact-panel .copy-status { min-height: 24px; font-size: 12px; margin: 8px 0 0; }
.contact-domain { margin-top: 28px; display: flex; flex-direction: column; gap: 13px; font-size: 15px; }
.contact-domain .microtype { color: var(--muted); }
.site-footer { padding: 50px 0 0; color: var(--paper); background: var(--charcoal); }
.site-footer .brand small, .site-footer .footer-main p, .site-footer .footer-bottom { color: #c9c9be; }
.site-footer .footer-signature, .site-footer .footer-bottom { border-color: #65665e; }
.site-footer .icp-link { color: var(--paper); }
.footer-signature { font-family: Georgia, serif; font-size: clamp(50px, 8.8vw, 135px); font-style: italic; letter-spacing: -5px; padding-bottom: 38px; line-height: 1.25; border-bottom: 1px solid var(--line); }
.footer-main { display: flex; justify-content: space-between; align-items: center; gap: 25px; padding: 32px 0; }
.footer-main p { font-size: 12px; color: var(--muted); }
.back-top { display: inline-flex; align-items: center; gap: 22px; min-height: 44px; font-size: 12px; }
.back-top > span { font-size: 20px; }
.footer-bottom { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 8px; border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); font-size: 11px; line-height: 1.8; }
.icp-link { display: inline-flex; min-height: 44px; align-items: center; font-size: 13px; color: var(--ink); }
.icp-link:hover { text-decoration: underline; }
/* 内容默认可见；仅在观察器成功启动后渐入，脚本失败不会留下空白章节。 */
.reveal.is-pending { opacity: 0; transform: translateY(22px); }
.reveal { transition: opacity .75s var(--ease), transform .75s var(--ease); }
@keyframes panel-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@media (min-width: 1600px) { .hero-grid { min-height: 750px; } }
@media (max-width: 1100px) {
    .container { width: calc(100% - 72px); }
    nav { gap: 22px; }
    nav a > span:first-child { display: none; }
    nav .nav-contact > span { display: inline !important; }
    h1 { font-size: 10.8vw; letter-spacing: -5px; }
    .hero-grid { min-height: 600px; }
    .hero-art { right: -36px; width: 70%; }
    .about-grid, .method-grid, .company-grid, .contact-grid { gap: 55px; }
    .service-item summary { grid-template-columns: 65px 1fr 185px 44px; gap: 20px; }
    .service-body { padding-left: 85px; padding-right: 0; gap: 20px 35px; }
    .company-details > div { grid-template-columns: 140px 1fr; font-size: 13px; }
    .principle-en { font-size: 3.7vw; }
}
@media (max-width: 760px) {
    .container { width: calc(100% - 40px); }
    .section-anchor { scroll-margin-top: 98px; }
    .header-inner { min-height: 78px; }
    .brand strong { font-size: 18px; letter-spacing: 2px; }
    .brand small { font-size: 9px; letter-spacing: 1.5px; }
    .brand-mark { width: 30px; height: 30px; }
    .menu-toggle { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 7px; width: 46px; height: 46px; border: 1px solid var(--line); background: transparent; padding: 10px; }
    .menu-toggle span { width: 21px; height: 1px; background: var(--paper); transition: transform .25s; }
    .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
    .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
    nav { display: none; position: absolute; top: 78px; left: 0; right: 0; background: var(--charcoal); border-bottom: 1px solid #77776e; padding: 20px; flex-direction: column; align-items: stretch; gap: 8px; box-shadow: 0 20px 25px #1718130d; }
    nav.is-open { display: flex; }
    nav a { font-size: 15px; padding: 7px 0; min-height: 50px; }
    nav a > span:first-child { display: inline; }
    nav a::after { display: none; }
    nav .nav-contact { justify-content: space-between; padding-inline: 16px; margin-top: 5px; }
    .hero { padding-top: 27px; }
    .hero-topline .microtype { display: none; }
    .eyebrow { font-size: 11px; letter-spacing: 1px; }
    .hero-grid { display: flex; flex-direction: column; align-items: stretch; min-height: 0; padding: 38px 0 26px; gap: 22px; }
    .hero-copy { width: 100%; }
    h1 { font-size: clamp(49px, 14.5vw, 105px); letter-spacing: -3px; line-height: 1.16; margin-bottom: 28px; }
    h1 > span:first-child { font-size: 24px; margin-bottom: 14px; }
    .hero-description { font-size: 13px; margin-bottom: 24px; }
    .button { min-height: 53px; }
    .hero-caption { margin-top: 24px; gap: 24px; font-size: 10px; }
    .hero-art { position: relative; inset: auto; width: calc(100% + 40px); max-width: none; margin: 0 -20px; padding-bottom: 26px; }
    .hero-art picture { height: auto; aspect-ratio: 1.25; mask-image: linear-gradient(to bottom, transparent, #000 15%, #000 85%, transparent); }
    .hero-art img { height: 100%; object-fit: cover; object-position: center 52%; }
    .hero-art figcaption { font-size: 9px; left: 20px; right: 20px; bottom: 0; }
    .hero-bottom { font-size: 10px; padding: 14px 0; align-items: flex-start; flex-direction: column; gap: 5px; }
    .scroll-link { gap: 18px; }
    .section { padding: 63px 0; }
    .section-kicker { padding-bottom: 20px; margin-bottom: 32px; }
    .section-kicker > .microtype { font-size: 8px; letter-spacing: 1px; text-align: right; }
    h2 { font-size: 38px; letter-spacing: -1px; }
    .statement { font-size: clamp(31px, 8.1vw, 54px); }
    .about-grid, .method-grid, .company-grid, .contact-grid { grid-template-columns: 1fr; gap: 31px; }
    .about-copy { display: block; padding-top: 0; max-width: none; }
    .about-copy .lead { font-size: 20px; margin-bottom: 22px; }
    .about-copy p { font-size: 14px; }
    .principles { gap: 22px; grid-template-columns: 1fr; margin-top: 45px; }
    .principles > div { flex-direction: row; justify-content: space-between; align-items: center; padding-top: 18px; gap: 15px; }
    .principle-en { font-size: 34px; }
    .principles > div > span:last-child { font-size: 11px; }
    .section-heading { flex-direction: column; align-items: flex-start; gap: 24px; margin-bottom: 30px; }
    .section-heading > p { font-size: 13px; margin: 0; }
    .service-item summary { grid-template-columns: 42px 1fr 40px; gap: 14px; padding: 26px 0; }
    .service-number { font-size: 33px; }
    .service-title { font-size: 26px; }
    .service-item[open] { padding-inline: 16px; }
    .service-item[open] .service-body { padding-left: 0; }
    .service-item[open] .service-body p:first-child { font-size: 17px; }
    .service-en { font-size: 9px; letter-spacing: .6px; }
    .service-brief { display: none; }
    .service-toggle { width: 38px; height: 38px; font-size: 23px; }
    .service-body { padding: 0 0 29px 56px; grid-template-columns: 1fr; gap: 14px; }
    .service-body p { font-size: 13px; }
    .service-body li { font-size: 12px; }
    .method-intro > p { margin: 22px 0 25px; font-size: 13px; }
    .method-tabs { max-width: none; }
    .method-tabs.is-enhanced { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; }
    .method-tabs button { font-size: 12px; gap: 12px; min-height: 57px; }
    .method-tabs button:last-child { border-bottom: 0; }
    .method-tabs button[aria-selected="true"]::after { right: 0; font-size: 17px; }
    .method-panel { padding: 24px; min-height: 435px; }
    .panel-number { font-size: 160px; margin-bottom: 24px; letter-spacing: -12px; }
    .method-panel h3 { font-size: 29px; margin-bottom: 19px; }
    .method-panel > p:not(.microtype) { font-size: 13px; }
    .panel-foot { margin-top: 28px; }
    .company-note { font-size: 13px; margin: 23px 0 16px; }
    .company-year { font-size: 110px; margin-bottom: 28px; }
    .company-details { padding: 10px 18px; }
    .company-details > div { grid-template-columns: 108px 1fr; gap: 13px; font-size: 12px; padding: 22px 0; }
    .company-details .credit-code { font-size: 12px; letter-spacing: 0; }
    .contact h2 { font-size: clamp(40px, 11.4vw, 65px); }
    .contact-orbit { margin-top: 32px; }
    .contact-orbit > span:last-child { width: 72px; height: 72px; font-size: 38px; }
    .contact-grid > div > p { margin-top: 23px; font-size: 13px; }
    .contact-panel { padding: 28px 0 0; border-left: 0; border-top: 1px solid #c9c6ba; }
    .contact-panel .contact-caption { margin: 0 0 21px; }
    .contact-panel #contact-address { font-size: 13px; }
    .site-footer { padding-top: 36px; }
    .footer-signature { font-size: clamp(37px, 10.7vw, 75px); letter-spacing: -2px; padding-bottom: 29px; }
    .footer-main { flex-wrap: wrap; gap: 20px; padding: 26px 0; }
    .footer-main p { width: 100%; order: 3; margin: 0; font-size: 11px; }
    .back-top { gap: 11px; font-size: 11px; margin-left: auto; }
    .footer-bottom { padding: 19px 0; font-size: 10px; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .reveal.is-pending { opacity: 1; transform: none; }
}