:root {
  --ink: #191918;
  --bone: #f2eee5;
  --paper: #faf8f3;
  --cobalt: #2c59bd;
  --muted: #706f69;
  --line: rgba(25,25,24,.16);
  --edge: clamp(1.25rem,4.5vw,5.5rem);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--bone); font-family: "Noto Sans SC","Microsoft YaHei",sans-serif; }
button, input, select, textarea { font: inherit; }
a { color: inherit; }
img { display: block; max-width: 100%; }
.skip-link { position: fixed; z-index: 999; top: .5rem; left: .5rem; padding: .7rem 1rem; color: white; background: var(--ink); transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.site-header { position: fixed; z-index: 100; inset: 0 0 auto; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 5.25rem; padding: 0 var(--edge); color: white; transition: .25s; }
.site-header::before { position: absolute; z-index: -1; inset: 0; background: linear-gradient(rgba(10,10,10,.62),transparent); content: ""; }
.site-header.scrolled { min-height: 4.35rem; color: var(--ink); border-bottom: 1px solid var(--line); background: rgba(242,238,229,.92); backdrop-filter: blur(16px); }
.site-header.scrolled::before { opacity: 0; }
.brand { display: inline-flex; flex-direction: column; width: max-content; text-decoration: none; line-height: 1; }
.brand-cn { font-family: STSong,"Noto Serif SC",serif; font-size: 1.35rem; letter-spacing: .16em; }
.brand-en { margin-top: .32rem; font-size: .48rem; letter-spacing: .32em; opacity: .68; }
.main-nav { display: flex; align-items: stretch; gap: clamp(.9rem,1.8vw,2.2rem); }
.main-nav > a, .nav-trigger { position: relative; display: flex; align-items: center; min-height: 4rem; padding: 0; border: 0; color: inherit; background: transparent; font-size: .68rem; letter-spacing: .15em; text-decoration: none; white-space: nowrap; opacity: .78; }
.main-nav > a:hover, .main-nav > a[aria-current="page"], .nav-trigger:hover { opacity: 1; }
.main-nav > a::after, .nav-trigger::after { position: absolute; right: 0; bottom: .55rem; left: 0; height: 1px; background: currentColor; content: ""; transform: scaleX(0); transition: transform .2s; }
.main-nav > a:hover::after, .main-nav > a[aria-current="page"]::after, .nav-group:focus-within .nav-trigger::after { transform: scaleX(1); }
.nav-group { position: relative; }
.nav-trigger span { margin-left: .35rem; font-size: .7rem; transition: transform .2s; }
.mega-panel { position: absolute; top: calc(100% - .1rem); left: 50%; display: grid; grid-template-columns: 10rem 13rem; width: 27rem; padding: 1.2rem; color: var(--ink); border: 1px solid var(--line); background: rgba(250,248,243,.98); box-shadow: 0 18px 50px rgba(0,0,0,.14); opacity: 0; visibility: hidden; transform: translate(-50%,-.4rem); transition: .2s; }
.nav-group:hover .mega-panel, .nav-group:focus-within .mega-panel, .nav-group.open .mega-panel { opacity: 1; visibility: visible; transform: translate(-50%,0); }
.nav-group.open .nav-trigger span { transform: rotate(180deg); }
.mega-panel > p { margin: .15rem 1rem 0 0; color: var(--cobalt); font: 600 .57rem/1.5 Arial,sans-serif; letter-spacing: .18em; }
.mega-links { display: grid; }
.mega-links a { padding: .65rem .2rem; border-bottom: 1px solid var(--line); font-size: .72rem; letter-spacing: .08em; text-decoration: none; }
.mega-links a:hover { color: var(--cobalt); padding-left: .5rem; }
.header-actions { display: flex; align-items: center; justify-self: end; gap: 1rem; }
.header-cta { padding: .72rem 1rem; border: 1px solid currentColor; font-size: .65rem; letter-spacing: .12em; text-decoration: none; }
.menu-button { display: none; width: 2.5rem; height: 2.5rem; padding: .68rem; border: 1px solid currentColor; border-radius: 50%; color: inherit; background: transparent; }
.menu-button span { display: block; height: 1px; margin: .3rem 0; background: currentColor; }
.page-hero { position: relative; display: grid; min-height: 68vh; padding: 10rem var(--edge) 5rem; overflow: hidden; color: white; background: #242421; }
.page-hero::before { position: absolute; inset: 0; background: linear-gradient(105deg,rgba(16,16,15,.86) 10%,rgba(16,16,15,.4) 64%,rgba(16,16,15,.75)); content: ""; }
.page-hero::after { position: absolute; inset: 0; opacity: .34; background: radial-gradient(circle at 77% 30%,var(--accent,#3562c8),transparent 28%), repeating-linear-gradient(110deg,transparent 0 70px,rgba(255,255,255,.045) 71px); content: ""; }
.page-hero-inner { position: relative; z-index: 1; align-self: end; max-width: 68rem; }
.breadcrumb { display: flex; gap: .6rem; align-items: center; margin-bottom: 2.5rem; font-size: .61rem; letter-spacing: .14em; opacity: .68; }
.breadcrumb a { text-decoration: none; }
.page-kicker, .section-kicker { margin: 0 0 1.2rem; color: var(--accent,#8bb0ff); font: 600 .62rem/1.5 Arial,sans-serif; letter-spacing: .23em; }
.page-hero h1 { max-width: 11em; margin: 0; font: 400 clamp(3.2rem,7.4vw,7.8rem)/1.03 STSong,"Noto Serif SC",serif; letter-spacing: -.06em; }
.page-intro { display: grid; grid-template-columns: .75fr 1.25fr; gap: 4rem; margin-top: 3rem; padding-top: 1.6rem; border-top: 1px solid rgba(255,255,255,.35); }
.page-intro > * { min-width: 0; overflow-wrap: anywhere; }
.page-intro p { max-width: 43rem; margin: 0; font-size: .88rem; line-height: 2; letter-spacing: .06em; }
.page-intro strong { font: 400 1.2rem/1.5 STSong,"Noto Serif SC",serif; }
.page-nav { position: sticky; z-index: 30; top: 4.35rem; display: flex; gap: 1.6rem; overflow-x: auto; padding: 0 var(--edge); border-bottom: 1px solid var(--line); background: rgba(242,238,229,.95); backdrop-filter: blur(12px); scrollbar-width: none; }
.page-nav a { flex: 0 0 auto; padding: 1rem 0; font-size: .68rem; letter-spacing: .12em; text-decoration: none; }
.page-nav a:hover { color: var(--cobalt); }
.content-section { padding: clamp(5rem,9vw,9rem) var(--edge); }
.content-section.light { background: var(--paper); }
.section-head { display: grid; grid-template-columns: 1.2fr .8fr; gap: 4rem; align-items: end; margin-bottom: 3.5rem; }
.section-head h2 { max-width: 12em; margin: 0; font: 400 clamp(2.4rem,4.8vw,5.2rem)/1.08 STSong,"Noto Serif SC",serif; letter-spacing: -.05em; }
.section-head > p { max-width: 38rem; margin: 0; color: var(--muted); font-size: .82rem; line-height: 2; }
.directory-grid { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.directory-card { position: relative; min-height: 18rem; padding: 2rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-decoration: none; transition: .25s; }
a.directory-card:hover { color: white; background: var(--cobalt); transform: translateY(-4px); }
.directory-card > span { color: var(--cobalt); font: 600 .58rem/1 Arial,sans-serif; letter-spacing: .18em; }
a.directory-card:hover > span { color: #bfd0ff; }
.directory-card h3 { margin: 5rem 0 1rem; font: 400 1.7rem/1.2 STSong,"Noto Serif SC",serif; }
.directory-card p { margin: 0; font-size: .76rem; line-height: 1.85; opacity: .72; }
.directory-card i { position: absolute; right: 1.5rem; bottom: 1.2rem; font: normal 1.3rem/1 Arial,sans-serif; }
.directory-card.featured-system { position:relative; color:#171810; background:var(--accent); }
.directory-card.featured-system::after { position:absolute; top:1.2rem; right:1.2rem; padding:.38rem .5rem; color:#fff; background:#171810; content:"完整详情"; font:600 .52rem/1 Arial,sans-serif; letter-spacing:.12em; }
.directory-card.featured-system:hover { color:#fff; background:#171810; }
.decision-strip { display: grid; grid-template-columns: 1fr 1fr; margin-top: 4rem; color: white; background: var(--ink); }
.decision-strip article { padding: clamp(2.5rem,5vw,5rem); }
.decision-strip article + article { border-left: 1px solid rgba(255,255,255,.2); }
.decision-strip span { color: #9ab7ff; font-size: .58rem; letter-spacing: .2em; }
.decision-strip h2 { margin: 1rem 0; font: 400 clamp(2rem,3.2vw,3.5rem)/1.1 STSong,"Noto Serif SC",serif; }
.decision-strip p { max-width: 33rem; font-size: .78rem; line-height: 1.9; opacity: .67; }
.text-link { display: inline-flex; margin-top: 1.2rem; padding-bottom: .35rem; border-bottom: 1px solid; font-size: .68rem; letter-spacing: .12em; text-decoration: none; }
.notice { margin-top: 3rem; padding: 1.3rem 1.5rem; border-left: 3px solid var(--cobalt); color: var(--muted); background: rgba(44,89,189,.055); font-size: .72rem; line-height: 1.8; }
.case-preview { overflow: hidden; padding: 0; }
.case-preview img { width: 100%; height: 13rem; object-fit: cover; }
.case-preview > div { padding: 1.5rem 2rem 2rem; }
.case-preview h3 { margin: .8rem 0; }
.journal-section { overflow: hidden; }
.journal-topics { display: flex; gap: .65rem; margin: -1rem 0 2.2rem; overflow-x: auto; scrollbar-width: none; }
.journal-topics span { flex: 0 0 auto; padding: .62rem .9rem; color: var(--muted); border: 1px solid var(--line); font-size: .62rem; letter-spacing: .1em; }
.journal-grid { display: grid; grid-template-columns: 1.15fr .85fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.journal-card { display: grid; grid-template-columns: 12.5rem 1fr; min-height: 17rem; color: var(--ink); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); text-decoration: none; transition: background-color .25s, color .25s; }
.journal-card--featured { grid-row: span 2; grid-template-columns: 1fr; }
.journal-card figure { min-width: 0; min-height: 0; margin: 0; overflow: hidden; background: #e8e3d9; }
.journal-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2,.65,.25,1); }
.journal-card--featured figure { height: clamp(19rem,31vw,35rem); }
.journal-card > div { display: flex; flex-direction: column; align-items: flex-start; padding: clamp(1.4rem,2.2vw,2.3rem); }
.journal-card > div > span { color: var(--cobalt); font: 600 .58rem/1.5 Arial,sans-serif; letter-spacing: .13em; }
.journal-card h3 { max-width: 15em; margin: 1.1rem 0 .8rem; font: 400 clamp(1.35rem,2vw,2.25rem)/1.25 STSong,"Noto Serif SC",serif; letter-spacing: -.035em; }
.journal-card p { margin: 0; color: var(--muted); font-size: .74rem; line-height: 1.85; }
.journal-card b { margin-top: auto; padding-top: 1.5rem; font-size: .64rem; font-weight: 500; letter-spacing: .1em; }
.journal-card:hover { color: white; background: var(--ink); }
.journal-card:hover p, .journal-card:hover > div > span { color: rgba(255,255,255,.68); }
.journal-card:hover img { transform: scale(1.035); }
.journal-all { display: flex; justify-content: space-between; align-items: center; margin-top: 1.4rem; padding: 1rem 0; border-bottom: 1px solid var(--ink); font-size: .7rem; letter-spacing: .1em; text-decoration: none; }
.journal-all span { font-size: 1.1rem; transition: transform .2s; }
.journal-all:hover span { transform: translateX(.4rem); }
.contact-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 5rem; }
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.contact-form label { display: grid; gap: .55rem; font-size: .68rem; letter-spacing: .1em; }
.contact-form .wide { grid-column: 1/-1; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; padding: .9rem 0; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; outline: 0; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--cobalt); }
.submit { grid-column: 1/-1; justify-self: start; padding: 1rem 1.4rem; border: 0; color: white; background: var(--cobalt); }
.direct-contact { display: grid; grid-template-columns: 1fr 1fr; margin-top: 1.2rem; border: 1px solid var(--line); background: rgba(250,248,243,.65); }
.direct-contact > div { display: grid; align-content: start; gap: .45rem; min-height: 8.5rem; padding: 1.2rem; }
.direct-contact > div + div { border-left: 1px solid var(--line); }
.direct-contact span { color: var(--muted); font-size: .61rem; letter-spacing: .14em; }
.direct-contact a, .direct-contact b { color: var(--ink); font-size: clamp(1rem,1.6vw,1.35rem); font-weight: 500; text-decoration: none; }
.direct-contact small { color: var(--muted); font-size: .62rem; }
.direct-contact button { justify-self: start; margin-top: auto; padding: .45rem 0; border: 0; border-bottom: 1px solid currentColor; color: var(--cobalt); background: transparent; cursor: pointer; font-size: .65rem; }
.form-result { display: none; padding: 1.2rem; border: 1px solid var(--line); background: var(--paper); font-size: .72rem; line-height: 1.85; white-space: pre-line; }
.form-result.is-visible { display: block; }
.site-footer { display: grid; grid-template-columns: .7fr 1fr 1fr; gap: 3rem; padding: 4rem var(--edge); color: #d7d3cb; background: var(--ink); }
.site-footer p, .site-footer small { margin: 0; font-size: .67rem; line-height: 1.9; opacity: .65; }
.site-footer p a { color: inherit; text-decoration: none; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }
.footer-links a { font-size: .68rem; text-decoration: none; }
@media (max-width: 1050px) {
  .site-header { grid-template-columns: 1fr auto; }
  .main-nav { position: fixed; top: 4.7rem; right: var(--edge); display: none; width: min(24rem,calc(100vw - 2 * var(--edge))); max-height: calc(100vh - 6rem); padding: 1rem; overflow-y: auto; color: white; background: rgba(25,25,24,.98); }
  .main-nav.open { display: grid; }
  .main-nav > a, .nav-trigger { min-height: auto; padding: .8rem; }
  .nav-group { display: grid; }
  .nav-trigger { width: 100%; justify-content: space-between; }
  .mega-panel { position: static; display: none; grid-template-columns: 1fr; width: auto; margin: 0 .8rem .8rem; padding: .8rem; color: white; border-color: rgba(255,255,255,.16); background: rgba(255,255,255,.06); box-shadow: none; opacity: 1; visibility: visible; transform: none; }
  .nav-group.open .mega-panel { display: grid; transform: none; }
  .mega-panel > p { margin: .2rem 0 .6rem; color: #a9c1ff; }
  .mega-links a { border-color: rgba(255,255,255,.15); }
  .menu-button { display: block; }
  .header-cta { display: none; }
}
@media (max-width: 760px) {
  .page-hero { min-height: 72vh; padding-top: 8rem; }
  .page-hero h1 { max-width: 100%; font-size: clamp(2.25rem,9.4vw,3.8rem); overflow-wrap: anywhere; }
  .page-intro strong { font-size: 1.05rem; line-height: 1.7; }
  .page-intro, .section-head, .contact-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .directory-grid { grid-template-columns: 1fr; }
  .directory-card { min-height: 14rem; }
  .directory-card h3 { margin-top: 3rem; }
  .decision-strip { grid-template-columns: 1fr; }
  .decision-strip article + article { border-top: 1px solid rgba(255,255,255,.2); border-left: 0; }
  .contact-form { grid-template-columns: 1fr; }
  .contact-form label, .contact-form .wide, .submit { grid-column: 1; }
  .journal-grid { grid-template-columns: 1fr; }
  .journal-card, .journal-card--featured { grid-row: auto; grid-template-columns: 1fr; min-height: 0; }
  .journal-card figure, .journal-card--featured figure { height: min(66vw,23rem); }
  .journal-card > div { min-height: 14rem; }
  .direct-contact { grid-template-columns: 1fr; }
  .direct-contact > div + div { border-top: 1px solid var(--line); border-left: 0; }
  .site-footer { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }