:root {
  --paper: #f4f2ed;
  --paper-deep: #e9e5dc;
  --white: #fffefa;
  --ink: #252522;
  --muted: #78756e;
  --line: #dedad1;
  --gold: #a78045;
  --gold-soft: #c9aa73;
  --jade: #4b6962;
  --cinnabar: #a14c3f;
  --night: #29302e;
  --shadow: 0 16px 40px rgba(48, 42, 31, 0.06);
  --serif: Georgia, "Noto Serif SC", "Songti SC", SimSun, serif;
  --sans: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.7;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--gold); }

button { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(244, 242, 237, 0.96);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  width: min(1500px, calc(100% - 40px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo { width: 38px; height: 38px; object-fit: contain; }
.brand-name { display: grid; gap: 0; line-height: 1.15; }
.brand-name strong { font-family: var(--serif); font-size: 19px; letter-spacing: 2px; }
.brand-name small { color: var(--muted); font-size: 8px; letter-spacing: 2px; }

.nav { display: flex; align-items: center; gap: 28px; color: var(--muted); font-size: 14px; }
.nav a { position: relative; padding: 24px 0 20px; }
.nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -1px; height: 2px; background: var(--gold); transition: right .2s ease; }
.nav a:hover::after, .nav a.active::after { right: 0; }
.nav a.active { color: var(--ink); }
.header-spacer { flex: 1; }
.menu-button { display: none; border: 1px solid var(--line); color: var(--ink); background: transparent; width: 40px; height: 40px; cursor: pointer; }

.page { width: min(1500px, calc(100% - 40px)); margin: 0 auto; padding: 32px 0 72px; }
.intro { display: flex; justify-content: space-between; gap: 48px; align-items: end; padding: 0 6px 32px; }
.intro h1 { margin: 8px 0 0; max-width: 670px; font-family: var(--serif); font-size: clamp(32px, 4.5vw, 58px); line-height: 1.2; font-weight: 500; letter-spacing: 1px; }
.intro-note { max-width: 300px; margin: 0; color: var(--muted); }
.kicker { margin: 0; color: var(--gold); font-size: 12px; letter-spacing: 3px; }

.panel { background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow); }
.top-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(280px, .75fr); gap: 18px; }
.core-panel { display: grid; grid-template-columns: repeat(3, 1fr); padding: 14px; gap: 14px; }
.core-card { min-height: 300px; padding: 24px; display: flex; align-items: end; border: 1px solid transparent; transition: transform .2s ease, box-shadow .2s ease; }
.core-card:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(35, 30, 22, .1); }
.dark-card { background: var(--night); color: #f8f4eb; }
.paper-card { background: #ede8de; }
.jade-card { background: var(--jade); color: #f7f4ec; }
.core-content { width: 100%; }
.core-index { display: block; opacity: .68; font-size: 11px; letter-spacing: 2px; }
.core-card h2 { margin: 20px 0 8px; font-family: var(--serif); font-size: 27px; font-weight: 500; }
.core-card p { margin: 0; color: inherit; opacity: .74; font-size: 13px; }
.core-arrow, .service-item a { display: inline-block; margin-top: 28px; color: var(--gold-soft); font-size: 13px; }
.paper-card .core-arrow, .service-item.panel a { color: var(--gold); }

.today-panel { padding: 26px; }
.panel-heading, .section-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 18px; }
.panel-heading h2, .section-heading h2 { margin: 0; font-family: var(--serif); font-size: 23px; font-weight: 500; }
.panel-heading span, .section-heading p { color: var(--muted); font-size: 12px; }
.today-card { display: flex; gap: 18px; align-items: center; padding: 26px 0; margin: 10px 0 8px; border-bottom: 1px solid var(--line); }
.today-date { display: grid; place-items: center; min-width: 72px; height: 86px; background: var(--paper-deep); color: var(--cinnabar); font-family: var(--serif); font-size: 36px; line-height: 1; }
.today-date small { color: var(--muted); font-family: var(--sans); font-size: 11px; }
.today-copy strong { font-family: var(--serif); font-size: 17px; font-weight: 500; }
.today-copy p { margin: 6px 0 0; color: var(--muted); font-size: 13px; }
.today-links { display: grid; }
.today-links a { display: flex; justify-content: space-between; padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.today-links span { color: var(--gold); font-size: 18px; line-height: 1; }

.section { margin-top: 18px; padding: 30px; }
.project-heading { max-width: 680px; margin: 0 auto 30px; text-align: center; }
.project-heading h2 { margin: 10px 0 12px; font-family: var(--serif); font-size: 34px; font-weight: 500; }
.project-heading i { display: block; width: 64px; height: 3px; margin: 0 auto 18px; background: var(--cinnabar); }
.project-heading > p:last-child { margin: 0; color: var(--muted); }
.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project-card { overflow: hidden; border: 1px solid #e8dfca; border-radius: 8px; background: #faf8f1; box-shadow: 0 10px 18px rgba(78, 62, 38, .08); transition: transform .2s ease, box-shadow .2s ease; }
.project-card:hover { transform: translateY(-3px); box-shadow: 0 14px 24px rgba(78, 62, 38, .12); }
.project-card > img { display: block; width: 100%; aspect-ratio: 1.9 / 1; object-fit: cover; }
.project-copy { padding: 24px 26px 26px; }
.project-icon { display: block; margin-bottom: 10px; color: var(--cinnabar); font-family: var(--serif); font-size: 17px; }
.project-copy h3 { margin: 0 0 8px; font-family: var(--serif); font-size: 22px; font-weight: 500; }
.project-copy p { min-height: 76px; margin: 0; color: var(--muted); font-size: 13px; }
.project-copy strong { display: flex; justify-content: space-between; margin-top: 18px; color: var(--cinnabar); font-size: 13px; font-weight: 500; }
.project-copy b { font-size: 18px; font-weight: 400; line-height: 1; }
.cooperation-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cooperation-card { display: flex; flex-direction: column; overflow: hidden; border: 1px solid #e8dfca; background: #faf8f1; box-shadow: 0 10px 18px rgba(78, 62, 38, .08); }
.cooperation-card > img { display: block; width: 100%; aspect-ratio: 1.35 / 1; object-fit: cover; }
.cooperation-copy { display: flex; flex: 1; flex-direction: column; padding: 22px 22px 24px; }
.cooperation-copy small { color: var(--gold); font-size: 10px; letter-spacing: 1px; }
.cooperation-copy h3 { margin: 8px 0 8px; font-family: var(--serif); font-size: 22px; font-weight: 500; }
.cooperation-copy p { margin: 0; color: var(--muted); font-size: 13px; }
.cooperation-list, .cooperation-bullets { margin: 16px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: 12px; }
.cooperation-list li { padding: 6px 0; border-top: 1px solid var(--line); }
.cooperation-list li::before, .cooperation-bullets li::before { content: "·"; display: inline-block; width: 14px; color: var(--cinnabar); font-size: 18px; line-height: 0; vertical-align: -2px; }
.cooperation-copy strong { display: block; margin-top: auto; padding-top: 18px; color: var(--cinnabar); font-size: 13px; font-weight: 500; }
.cooperation-bullets { display: grid; gap: 0; margin-top: 18px; }
.cooperation-bullets li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.section-heading { padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.section-heading p { margin: 0; }
.knowledge-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; padding-top: 24px; }
.knowledge-column h3 { display: flex; justify-content: space-between; margin: 0 0 8px; font-family: var(--serif); font-size: 17px; font-weight: 500; }
.knowledge-column h3 span { color: var(--gold); font-family: var(--sans); font-size: 11px; font-weight: 400; }
.knowledge-list { margin: 0; padding: 0; list-style: none; counter-reset: lessons; }
.knowledge-list li { counter-increment: lessons; border-bottom: 1px solid var(--line); }
.knowledge-list a { display: flex; gap: 10px; align-items: center; padding: 9px 0; font-size: 13px; }
.knowledge-list a::before { content: "0" counter(lessons); color: var(--gold); font-size: 10px; letter-spacing: 1px; }
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; padding-top: 26px; }
.value-item { padding-right: 18px; border-right: 1px solid var(--line); }
.value-item:last-child { border-right: 0; }
.value-item strong { color: var(--gold); font-size: 12px; letter-spacing: 2px; }
.value-item h3 { margin: 16px 0 6px; font-family: var(--serif); font-size: 19px; font-weight: 500; }
.value-item p { margin: 0; color: var(--muted); font-size: 13px; }
.about-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: start; }
.about-panel h2 { margin: 12px 0 0; font-family: var(--serif); font-size: 30px; font-weight: 500; }
.about-panel p { margin: 0 0 12px; color: var(--muted); }
.about-page { padding-top: 32px; }
.about-hero { min-height: 0; padding-bottom: 28px; align-items: end; }
.about-hero h1 { font-size: clamp(44px, 7vw, 86px); letter-spacing: 3px; }
.about-hero-title { max-width: 520px !important; margin: 22px 0 0 !important; color: var(--ink) !important; font-family: var(--serif); font-size: clamp(20px, 2.1vw, 28px); line-height: 1.55; }
.about-hero-caption { max-width: 440px !important; margin: 9px 0 0 !important; color: var(--muted) !important; font-size: 13px; }
.about-hero-side { display: grid; grid-template-columns: 80px minmax(220px, 320px); gap: 22px; align-items: center; max-width: 430px; }
.about-hero-side p { margin: 0; color: var(--muted); font-size: 13px; }
.about-seal { display: grid; place-items: center; width: 80px; height: 80px; border: 1px solid var(--gold-soft); border-radius: 50%; background: var(--white); box-shadow: 0 0 0 8px rgba(201, 170, 115, .12); }
.about-seal img { width: 54px; height: 54px; object-fit: contain; }
.about-intro { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; padding-top: 42px; padding-bottom: 42px; }
.about-intro h2 { max-width: 410px; margin: 14px 0 24px; font-family: var(--serif); font-size: 32px; font-weight: 500; line-height: 1.45; }
.about-quote { margin: 0; padding-left: 18px; border-left: 2px solid var(--gold); color: #6e695f; font-family: var(--serif); font-size: 15px; line-height: 1.9; }
.about-intro-copy { color: var(--muted); }
.about-intro-copy p { margin: 0 0 14px; }
.about-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--line); }
.about-facts div { display: grid; gap: 3px; }
.about-facts strong { color: var(--ink); font-family: var(--serif); font-size: 20px; font-weight: 500; }
.about-facts span { color: var(--muted); font-size: 11px; }
.about-product { padding: 34px 0 16px; }
.about-feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding-top: 26px; }
.about-feature { min-height: 300px; padding: 28px; border: 1px solid var(--line); background: var(--white); box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease; }
.about-feature:hover { transform: translateY(-3px); box-shadow: 0 18px 32px rgba(48, 42, 31, .1); }
.about-feature-dark { background: var(--night); color: #f8f4eb; }
.about-feature-jade { background: var(--jade); color: #f7f4ec; }
.about-feature-no { display: block; color: var(--gold); font-size: 12px; letter-spacing: 2px; }
.about-feature h3 { margin: 48px 0 10px; font-family: var(--serif); font-size: 27px; font-weight: 500; }
.about-feature p { min-height: 76px; margin: 0; color: var(--muted); font-size: 13px; }
.about-feature-dark p, .about-feature-jade p { color: rgba(248, 244, 235, .72); }
.about-feature a { display: inline-flex; gap: 12px; align-items: center; margin-top: 26px; color: var(--gold); font-size: 13px; }
.about-feature-dark a, .about-feature-jade a { color: var(--gold-soft); }
.about-feature a b { font-size: 17px; font-weight: 400; }
.about-global { display: grid; grid-template-columns: .9fr 1.1fr; gap: 36px 80px; margin-top: 36px; padding: 44px 42px 38px; background: var(--night); color: #f8f4eb; }
.about-global-heading h2 { max-width: 380px; margin: 14px 0 0; font-family: var(--serif); font-size: 32px; font-weight: 500; line-height: 1.5; }
.about-global .kicker { color: var(--gold-soft); }
.about-global-copy { color: rgba(248, 244, 235, .72); font-size: 13px; }
.about-global-copy p { margin: 0 0 12px; }
.about-global-route { grid-column: 1 / -1; display: flex; align-items: center; gap: 20px; padding-top: 26px; border-top: 1px solid rgba(248, 244, 235, .18); }
.about-global-route > div { display: grid; grid-template-columns: auto auto; gap: 2px 12px; align-items: baseline; min-width: 160px; }
.about-global-route strong { grid-row: span 2; color: var(--gold-soft); font-size: 12px; letter-spacing: 2px; }
.about-global-route span { font-family: var(--serif); font-size: 20px; }
.about-global-route small { color: rgba(248, 244, 235, .55); font-size: 11px; }
.about-global-route i { flex: 1; height: 1px; background: rgba(201, 170, 115, .52); }
.about-method { margin-top: 36px; padding-top: 42px; padding-bottom: 42px; }
.about-method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 36px; }
.about-method-grid article { min-height: 176px; padding: 0 24px; border-right: 1px solid var(--line); }
.about-method-grid article:first-child { padding-left: 0; }
.about-method-grid article:last-child { padding-right: 0; border-right: 0; }
.about-method-grid span { color: var(--cinnabar); font-family: var(--serif); font-size: 20px; }
.about-method-grid h3 { margin: 18px 0 8px; font-family: var(--serif); font-size: 20px; font-weight: 500; }
.about-method-grid p { margin: 0; color: var(--muted); font-size: 13px; }
.about-values { padding: 34px 0 16px; }
.about-timeline { margin-top: 36px; padding-top: 34px; padding-bottom: 34px; }
.timeline-list { max-width: 940px; margin-top: 24px; }
.timeline-item { display: grid; grid-template-columns: 100px 1fr; gap: 28px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.timeline-item:last-child { border-bottom: 0; padding-bottom: 0; }
.timeline-item > strong { color: var(--gold); font-family: var(--serif); font-size: 22px; font-weight: 500; }
.timeline-item h3 { margin: 0 0 5px; font-family: var(--serif); font-size: 20px; font-weight: 500; }
.timeline-item p { margin: 0; color: var(--muted); font-size: 13px; }
.about-contact { display: grid; grid-template-columns: .85fr 1.15fr; gap: 52px; margin-top: 36px; padding: 38px 0 12px; border-top: 1px solid var(--line); }
.about-contact-intro h2 { margin: 12px 0 12px; font-family: var(--serif); font-size: 30px; font-weight: 500; }
.about-contact-intro > p:last-child { max-width: 360px; margin: 0; color: var(--muted); font-size: 13px; }
.about-contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.about-contact-item { display: flex; min-height: 140px; flex-direction: column; padding: 20px; border: 1px solid var(--line); background: var(--white); }
.about-contact-item > span { color: var(--gold); font-size: 11px; letter-spacing: 1px; }
.about-contact-item strong { margin-top: auto; color: var(--ink); font-family: var(--serif); font-size: 16px; font-weight: 500; overflow-wrap: anywhere; }
.about-contact-item small { margin-top: 6px; color: var(--muted); font-size: 11px; line-height: 1.5; }
.about-contact-item b { color: var(--gold); font-size: 18px; font-weight: 400; }
.about-contact-foot { grid-column: 1 / -1; display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.about-contact-foot a { color: var(--gold); }
.quality-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px 56px; padding-top: 26px; }
.quality-item { display: flex; align-items: flex-start; gap: 14px; }
.quality-check { display: grid; place-items: center; flex: 0 0 20px; width: 20px; height: 20px; margin-top: 4px; border-radius: 50%; background: var(--cinnabar); color: var(--white); font-size: 14px; font-weight: 700; line-height: 1; }
.quality-item h3 { margin: 0 0 4px; font-family: var(--serif); font-size: 18px; font-weight: 500; }
.quality-item p { margin: 0; color: var(--muted); font-size: 13px; }
.way-heading { max-width: 650px; margin: 0 auto 30px; text-align: center; }
.way-heading h2 { margin: 10px 0 12px; font-family: var(--serif); font-size: 34px; font-weight: 500; }
.way-heading i { display: block; width: 64px; height: 3px; margin: 0 auto 18px; background: var(--cinnabar); }
.way-heading > p:last-child { margin: 0; color: var(--muted); }
.way-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.way-card { min-height: 220px; padding: 28px 30px; border: 1px solid #e8dfca; border-radius: 8px; background: #faf8f1; box-shadow: 0 10px 18px rgba(78, 62, 38, .08); }
.way-mark { display: block; margin-bottom: 18px; color: var(--cinnabar); font-family: var(--serif); font-size: 19px; }
.way-card h3 { margin: 0 0 10px; font-family: var(--serif); font-size: 22px; font-weight: 500; }
.way-card p { margin: 0; color: var(--muted); font-size: 14px; }
.text-link { display: inline-block; margin-top: 10px; color: var(--gold); font-size: 13px; }
.service-strip { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 18px; padding: 0; border: 0; box-shadow: none; background: transparent; }
.service-item { min-height: 236px; padding: 28px; }
.service-item h2 { margin: 20px 0 8px; font-family: var(--serif); font-size: 23px; font-weight: 500; }
.service-item p:not(.kicker) { margin: 0; color: var(--muted); font-size: 13px; }
.service-item.dark-card p:not(.kicker) { color: #e5e0d4; }

.page-hero { display: flex; justify-content: space-between; align-items: end; gap: 36px; padding: 0 6px 28px; }
.page-hero h1 { margin: 8px 0 0; font-family: var(--serif); font-weight: 500; font-size: clamp(32px, 5vw, 52px); line-height: 1.2; }
.page-hero > p { max-width: 350px; margin: 0; color: var(--muted); }
.breadcrumb { margin-bottom: 12px; color: var(--muted); font-size: 12px; }
.breadcrumb a { color: var(--gold); }
.category-list { display: grid; gap: 18px; }
.category-block { padding: 28px; }
.category-title { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.category-title h2 { margin: 0; font-family: var(--serif); font-size: 25px; font-weight: 500; }
.category-title span { color: var(--muted); font-size: 12px; }
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 26px; }
.article-link { display: block; padding: 17px 0; border-bottom: 1px solid var(--line); }
.article-link small { color: var(--gold); font-size: 10px; letter-spacing: 1px; }
.article-link h3 { margin: 4px 0 4px; font-family: var(--serif); font-size: 17px; font-weight: 500; }
.article-link p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.article-link:hover h3 { color: var(--gold); }

.article-layout { display: grid; grid-template-columns: minmax(0, 780px) 260px; gap: 48px; align-items: start; }
.article-main { padding: 42px 54px 54px; }
.article-main .article-kicker { color: var(--gold); font-size: 12px; letter-spacing: 2px; }
.article-main h1 { margin: 12px 0 12px; font-family: var(--serif); font-size: clamp(32px, 4vw, 48px); line-height: 1.25; font-weight: 500; }
.article-meta { color: var(--muted); font-size: 12px; }
.article-lead { margin: 30px 0; padding: 20px 22px; border-left: 3px solid var(--gold); background: var(--paper); color: #58554e; }
.article-images { display: grid; gap: 14px; margin: 24px 0 30px; }
.article-images figure { margin: 0; background: var(--paper); border: 1px solid var(--line); }
.article-images img { display: block; width: 100%; height: auto; max-height: 420px; object-fit: contain; }
.article-body h2 { margin: 32px 0 10px; font-family: var(--serif); font-size: 22px; font-weight: 500; }
.article-body p { margin: 0 0 14px; color: #56534d; }
.article-body ul { margin: 0 0 18px; padding-left: 20px; color: #56534d; }
.article-body li { margin: 7px 0; }
.article-aside { padding: 24px; position: sticky; top: 96px; }
.article-aside h2 { margin: 0 0 12px; font-family: var(--serif); font-size: 17px; font-weight: 500; }
.article-aside a { display: block; padding: 8px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.article-aside a:hover { color: var(--gold); }
.back-link { display: inline-block; margin-top: 28px; color: var(--gold); font-size: 13px; }

.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.info-card { min-height: 190px; padding: 26px; }
.info-card h2 { margin: 0 0 10px; font-family: var(--serif); font-size: 22px; font-weight: 500; }
.info-card p { margin: 0; color: var(--muted); font-size: 13px; }
.info-card a { display: inline-block; margin-top: 24px; color: var(--gold); font-size: 13px; }
.notice { padding: 22px 26px; border-left: 3px solid var(--gold); background: #eee9df; color: #625e55; }
.notice p { margin: 0; }
.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.case-card { padding: 22px; background: var(--white); border: 1px solid var(--line); }
.case-card strong { font-family: var(--serif); font-size: 19px; font-weight: 500; }
.case-card p { margin: 5px 0 14px; color: var(--muted); font-size: 12px; }
.case-card a { color: var(--gold); font-size: 12px; }
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-block { padding: 32px; }
.contact-block h2 { margin: 0 0 14px; font-family: var(--serif); font-size: 24px; font-weight: 500; }
.contact-block p { margin: 0 0 10px; color: var(--muted); }
.contact-block a { color: var(--gold); }
.contact-block .contact-line { display: block; margin: 0 0 8px; color: var(--ink); font-size: 14px; }
.contact-block .contact-line[href]:hover { color: var(--gold); }

.site-footer { width: min(1500px, calc(100% - 40px)); margin: 0 auto; padding: 28px 0 36px; display: grid; grid-template-columns: 1fr 1fr auto; gap: 20px; align-items: center; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.footer-brand { display: flex; align-items: center; gap: 9px; color: var(--ink); font-family: var(--serif); font-size: 17px; }
.footer-brand .brand-logo { width: 28px; height: 28px; }
.footer-meta { display: grid; justify-items: end; gap: 3px; }
.footer-meta span, .footer-meta a { overflow-wrap: anywhere; }
.footer-contact { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 4px 12px; }
.footer-contact a { color: var(--muted); }
.footer-meta a { color: var(--muted); text-decoration: none; }
.footer-meta a:hover { color: var(--gold); text-decoration: underline; }

.empty-state { padding: 60px 20px; text-align: center; color: var(--muted); }

@media (max-width: 900px) {
  .top-grid, .about-panel, .article-layout, .contact-layout { grid-template-columns: 1fr; }
  .core-panel { grid-template-columns: repeat(3, 1fr); }
  .project-grid { grid-template-columns: repeat(2, 1fr); }
  .cooperation-grid { grid-template-columns: repeat(2, 1fr); }
  .knowledge-grid { grid-template-columns: repeat(2, 1fr); }
  .article-aside { position: static; }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .footer-meta { justify-items: start; }
  .about-hero-side { max-width: none; margin-top: 24px; }
  .about-intro { grid-template-columns: 1fr; gap: 28px; }
  .about-feature-grid { grid-template-columns: 1fr; }
  .about-global { grid-template-columns: 1fr; gap: 22px; }
  .about-global-route { grid-column: auto; }
  .about-method-grid { grid-template-columns: repeat(2, 1fr); gap: 26px 0; }
  .about-method-grid article:nth-child(2) { border-right: 0; }
  .about-method-grid article:nth-child(3) { padding-left: 0; }
  .about-method-grid article:nth-child(3), .about-method-grid article:nth-child(4) { padding-top: 26px; border-top: 1px solid var(--line); }
  .about-contact { grid-template-columns: 1fr; gap: 28px; }
  .about-contact-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 680px) {
  .header-inner, .page, .site-footer { width: min(100% - 28px, 1500px); }
  .header-inner { min-height: 62px; gap: 14px; }
  .brand-name small { display: none; }
  .menu-button { display: block; margin-left: auto; font-size: 0; }
  .menu-button::before { content: "☰"; font-size: 18px; }
  .nav { display: none; position: absolute; top: 62px; left: 0; right: 0; padding: 8px 14px 14px; flex-direction: column; align-items: stretch; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .nav a { padding: 10px 4px; border-bottom: 1px solid var(--line); }
  .nav a::after { display: none; }
  .page { padding: 24px 0 62px; }
  .intro, .page-hero { display: block; padding-bottom: 28px; }
  .intro-note, .page-hero > p { margin-top: 18px; }
  .intro h1 { font-size: 36px; }
  .about-page { padding-top: 24px; }
  .about-hero { min-height: 0; }
  .about-hero h1 { font-size: 52px; }
  .about-hero-side { grid-template-columns: 64px 1fr; gap: 16px; }
  .about-seal { width: 64px; height: 64px; }
  .about-seal img { width: 44px; height: 44px; }
  .about-intro h2 { font-size: 27px; }
  .about-facts { grid-template-columns: 1fr; gap: 12px; }
  .about-feature { min-height: 250px; }
  .about-feature h3 { margin-top: 34px; }
  .about-global { padding: 28px 18px; }
  .about-global-heading h2 { font-size: 27px; }
  .about-global-route { display: grid; grid-template-columns: 1fr; gap: 14px; }
  .about-global-route > div { min-width: 0; }
  .about-global-route i { width: 1px; height: 18px; margin-left: 5px; }
  .about-method-grid { grid-template-columns: 1fr; gap: 0; }
  .about-method-grid article, .about-method-grid article:nth-child(3), .about-method-grid article:nth-child(4) { min-height: 0; padding: 20px 0; border-right: 0; border-top: 1px solid var(--line); }
  .about-method-grid article:first-child { padding-top: 0; border-top: 0; }
  .timeline-item { grid-template-columns: 64px 1fr; gap: 16px; }
  .about-contact-grid { grid-template-columns: 1fr; }
  .about-contact-item { min-height: 112px; }
  .about-contact-foot { display: grid; gap: 8px; }
  .core-panel { grid-template-columns: 1fr; padding: 10px; }
  .core-card { min-height: 190px; }
  .section { padding: 22px 18px; }
  .knowledge-grid, .values-grid, .service-strip, .info-grid { grid-template-columns: 1fr; gap: 18px; }
  .quality-grid { grid-template-columns: 1fr; gap: 18px; }
  .way-grid { grid-template-columns: 1fr; gap: 14px; }
  .project-grid { grid-template-columns: 1fr; }
  .cooperation-grid { grid-template-columns: 1fr; }
  .value-item { padding: 0 0 18px; border-right: 0; border-bottom: 1px solid var(--line); }
  .value-item:last-child { border-bottom: 0; padding-bottom: 0; }
  .service-item { min-height: 180px; }
  .article-grid { grid-template-columns: 1fr; }
  .article-main { padding: 28px 22px 34px; }
  .article-main h1 { font-size: 32px; }
  .category-block, .contact-block, .info-card { padding: 22px 18px; }
  .case-grid { grid-template-columns: 1fr 1fr; }
  .site-footer { grid-template-columns: 1fr; gap: 12px; }
  .footer-meta { justify-items: start; }
}