:root {
  --paper: #f2f0e9;
  --paper-2: #fbfaf6;
  --ink: #101927;
  --muted: #647080;
  --line: #d9d8d0;
  --blue: #2b4cff;
  --orange: #ff6b3d;
  --mint: #d7ff7a;
  --white: #ffffff;
  --display: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  --body: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  --mono: Consolas, "Courier New", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--body); font-size: 16px; line-height: 1.7; }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; opacity: .28; background-image: linear-gradient(rgba(16,25,39,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(16,25,39,.045) 1px, transparent 1px); background-size: 36px 36px; mask-image: linear-gradient(to bottom, black, transparent 70%); }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
.shell { width: min(1180px, calc(100% - 48px)); margin: auto; }
.topbar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; padding: 18px 0; background: rgba(242,240,233,.86); border-bottom: 1px solid rgba(16,25,39,.1); backdrop-filter: blur(16px); }
.brandmark { display: flex; align-items: center; gap: 11px; font-size: 14px; font-weight: 800; letter-spacing: -.02em; }
.star { width: 24px; height: 24px; display: inline-block; background: var(--blue); transform: rotate(45deg); border-radius: 5px; position: relative; }
.star::after { content: ""; position: absolute; inset: 6px; background: var(--mint); border-radius: 2px; }
nav { display: flex; align-items: center; gap: 24px; color: var(--muted); font: 12px var(--mono); letter-spacing: .04em; }
nav a { transition: color .2s ease, transform .2s ease; }
nav a:hover, nav a:focus-visible { color: var(--blue); transform: translateY(-1px); }
.kicker { color: var(--blue); font: 500 12px var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.hero { position: relative; display: grid; grid-template-columns: 1.12fr .88fr; gap: 60px; min-height: 660px; align-items: center; margin-top: 0; padding: 78px 64px; overflow: hidden; color: var(--paper); background: var(--ink); border-radius: 0; box-shadow: none; }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .16; background: linear-gradient(90deg, transparent 0 49.8%, rgba(255,255,255,.35) 50%, transparent 50.2%), linear-gradient(0deg, transparent 0 74.8%, rgba(255,255,255,.35) 75%, transparent 75.2%); background-size: 50% 100%, 100% 50%; }
.hero > * { position: relative; z-index: 1; }
.hero .kicker { color: var(--mint); }
.hero h1 { max-width: 690px; margin: 18px 0 25px; font: 800 clamp(50px, 7vw, 106px)/.98 var(--display); letter-spacing: -.08em; }
.hero h1 em { color: var(--mint); font-style: normal; }
.lead { max-width: 600px; margin: 0; color: #d7dce4; font-size: 19px; line-height: 1.75; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 11px 19px; color: var(--ink); background: transparent; border: 1px solid var(--ink); border-radius: 999px; cursor: pointer; font-size: 13px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn.primary { color: var(--ink); background: var(--mint); border-color: var(--mint); }
.hero .btn.ghost { color: var(--paper); border-color: rgba(242,240,233,.6); }
.btn:hover, .btn:focus-visible { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 var(--orange); }
.notice { margin: 26px 0 0; color: var(--orange); font: 13px var(--mono); letter-spacing: .03em; }
.hero-card { position: relative; min-height: 410px; overflow: hidden; padding: 30px; color: var(--ink); background: linear-gradient(135deg, var(--mint) 0 54%, var(--orange) 54% 100%); border-radius: 0; transform: none; box-shadow: 14px 14px 0 rgba(242,240,233,.22); }
.hero-card::before { content: ""; position: absolute; width: 280px; height: 280px; top: 65px; left: 28px; border: 1px solid rgba(16,25,39,.45); border-radius: 50%; box-shadow: 0 0 0 24px rgba(16,25,39,.06), 0 0 0 48px rgba(16,25,39,.06), 0 0 0 72px rgba(16,25,39,.06); }
.hero-card::after { content: "✳"; position: absolute; right: -18px; bottom: -65px; color: rgba(16,25,39,.75); font: 290px/.75 Arial, sans-serif; }
.card-label { position: relative; z-index: 1; font: 12px var(--mono); letter-spacing: .12em; }
.card-copy { position: absolute; z-index: 1; left: 30px; bottom: 28px; max-width: 250px; font: 800 25px/1.12 var(--display); letter-spacing: -.04em; }
.signal-bar { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; padding: 15px 0 16px; color: var(--muted); border-bottom: 1px solid var(--line); font: 12px var(--mono); letter-spacing: .1em; }
.signal-bar span { padding-right: 15px; border-right: 1px solid var(--line); }
.signal-bar span:not(:first-child) { padding-left: 15px; }
.signal-bar span:last-child { border-right: 0; text-align: right; }
.section { padding: 105px 0; border-top: 1px solid var(--line); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 54px; }
.section-head > div:only-child { width: 100%; }
.section h2 { margin: 8px 0 0; font: 800 clamp(37px, 5vw, 68px)/1.02 var(--display); letter-spacing: -.07em; }
.section-intro { max-width: 380px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.75; }
.service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.service { min-height: 250px; display: flex; flex-direction: column; justify-content: space-between; padding: 27px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 0; transition: transform .25s ease, background .25s ease; }
.service:hover { transform: translateY(-5px); background: var(--white); }
.service:nth-child(2) { color: var(--paper); background: var(--blue); border-color: var(--blue); }
.service:nth-child(3) { background: var(--orange); border-color: var(--orange); }
.service:nth-child(4) { background: var(--mint); border-color: var(--mint); }
.service h3 { max-width: 340px; margin: 27px 0 10px; font: 700 31px/1.08 var(--display); letter-spacing: -.05em; }
.service p { max-width: 380px; margin: 0; color: inherit; opacity: .82; font-size: 16px; line-height: 1.7; }
.tag { font: 11px var(--mono); letter-spacing: .12em; opacity: .72; }
.process { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); }
.process-item { min-height: 200px; padding: 24px 28px 24px 0; margin-right: 28px; border-right: 1px solid var(--ink); }
.process-item:last-child { margin: 0; border-right: 0; }
.step { color: var(--orange); font: 13px var(--mono); }
.process h3 { margin: 31px 0 8px; font-size: 22px; }
.process p { max-width: 230px; margin: 0; color: var(--muted); font-size: 14px; }
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: start; }
.about-copy { max-width: 670px; font-size: 17px; }
.about-copy p { margin: 0 0 18px; }
.about-meta { display: flex; gap: 16px; margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--line); }
.about-meta span { display: grid; flex: 1; gap: 8px; color: var(--muted); font: 17px/1.55 var(--body); }
.about-meta b { color: var(--orange); font: 12px var(--mono); letter-spacing: .11em; }
.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.case-card { position: relative; min-height: 230px; display: flex; flex-direction: column; justify-content: space-between; padding: 22px; overflow: hidden; background: var(--paper-2); border: 1px solid var(--line); border-radius: 0; transition: transform .2s ease; }
.case-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: var(--blue); }
.case-card:nth-child(2)::before { background: var(--orange); }
.case-card:nth-child(3)::before { background: var(--mint); }
.case-card:nth-child(4)::before { background: var(--ink); }
.case-card:hover { transform: translateY(-5px); }
.case-card h3 { margin: 25px 0 10px; font: 700 23px/1.12 var(--display); letter-spacing: -.04em; }
.case-card p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.65; }
.geo-list { border-top: 1px solid var(--ink); }
.geo-item { display: grid; grid-template-columns: 70px 1fr; gap: 20px; padding: 21px 0; border-bottom: 1px solid var(--line); }
.geo-item p { max-width: 790px; margin: 0; font-size: 17px; line-height: 1.7; }
.geo-actions { display: flex; justify-content: flex-end; padding-top: 24px; }
.article-grid { display: grid; grid-template-columns: 1fr; }
.article-card { display: grid; grid-template-columns: 1fr 1.8fr auto; align-items: center; gap: 28px; padding: 27px 0; color: var(--ink); border-top: 1px solid var(--ink); transition: padding .2s ease, color .2s ease; }
.article-card:last-child { border-bottom: 1px solid var(--ink); }
.article-card:hover { padding-left: 14px; color: var(--blue); }
.article-card .kicker { font-size: 12px; }
.article-card h3 { margin: 0; font: 700 29px/1.12 var(--display); letter-spacing: -.05em; }
.article-card p { margin: 0; max-width: 420px; color: var(--muted); font-size: 14px; }
.article-arrow { color: var(--orange); font: 12px var(--mono); white-space: nowrap; }
.proof { margin: 0 calc((100vw - min(1180px, calc(100% - 48px)))/-2); padding: 86px max(24px, calc((100vw - 1180px)/2)); color: var(--paper); background: var(--ink); }
.proof-inner { max-width: 1180px; margin: auto; }
.proof .section-head { padding-bottom: 30px; border-bottom: 1px solid #3e4956; }
.proof h2 { color: var(--paper); }
.proof .section-intro { color: #aeb8c5; }
.proof-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px; }
.proof-item { min-height: 80px; padding-left: 15px; border-left: 2px solid var(--orange); color: #f4f1e9; font: 500 15px/1.55 var(--body); }
.faq-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.faq-item { min-height: 180px; padding: 23px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 0; }
.faq-item h3 { margin: 0 0 12px; font-size: 16px; }
.faq-item p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.contact { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; }
.contact h2 { max-width: 510px; }
.contact-form { display: grid; gap: 12px; padding: 28px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 0; }
label { color: var(--muted); font: 12px var(--mono); letter-spacing: .08em; }
input, textarea { width: 100%; padding: 14px; color: var(--ink); background: var(--white); border: 1px solid var(--line); outline: none; }
input:focus, textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(43,76,255,.13); }
textarea { min-height: 120px; resize: vertical; }
.form-status { min-height: 24px; margin: 0; color: var(--blue); font-size: 13px; }
footer { display: flex; justify-content: space-between; padding: 22px 0 36px; color: var(--muted); border-top: 1px solid var(--line); font-size: 13px; line-height: 1.8; }
.icp-link { color: inherit; text-decoration: none; }
.icp-link:hover { color: var(--ink); text-decoration: underline; }
.collection-hero { padding: 100px 0 84px; border-bottom: 1px solid var(--ink); }
.collection-hero h1 { max-width: 900px; margin: 16px 0 28px; font: 800 clamp(50px, 7vw, 96px)/.98 var(--display); letter-spacing: -.08em; }
.collection-hero p { max-width: 720px; margin: 0; color: var(--muted); font-size: 18px; }
.collection-section { padding: 72px 0 110px; }
.collection-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.collection-heading h2 { margin: 6px 0 0; font: 800 clamp(34px, 4vw, 54px)/1 var(--display); letter-spacing: -.06em; }
.collection-heading p, .source-note { color: var(--muted); }
.case-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 38px 0 30px; }
.filter-button { padding: 9px 15px; color: var(--ink); background: transparent; border: 1px solid var(--ink); border-radius: 999px; cursor: pointer; font: 12px var(--mono); }
.filter-button:hover, .filter-button:focus-visible, .filter-button.is-active { color: var(--paper); background: var(--ink); }
.case-catalog { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.catalog-card { min-height: 270px; display: flex; flex-direction: column; padding: 24px; background: var(--paper-2); border: 1px solid var(--line); }
.catalog-card[hidden] { display: none; }
.catalog-card h3 { margin: 28px 0 12px; font: 700 24px/1.18 var(--display); letter-spacing: -.04em; }
.catalog-card p { margin: auto 0 20px; color: var(--muted); font-size: 14px; }
.catalog-card a, .source-note a { color: var(--blue); font: 12px var(--mono); text-decoration: underline; text-underline-offset: 4px; }
.source-note { max-width: 780px; margin: 30px 0 0; font-size: 13px; }
.admin-wrap { padding: 58px 0 100px; }
.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.panel { padding: 25px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 0; }
.panel h2 { margin-top: 0; font-size: 22px; }
.field { display: grid; gap: 7px; margin-bottom: 15px; }
.field textarea { min-height: 90px; }
.inquiry { padding: 14px 0; border-top: 1px solid var(--line); font-size: 13px; }
.inquiry small { color: var(--muted); }
code { padding: 2px 6px; background: rgba(43,76,255,.08); border-radius: 4px; }
@media (max-width: 900px) { .shell { width: min(100% - 30px, 620px); } nav { gap: 12px; font-size: 10px; } .hero { grid-template-columns: 1fr; gap: 42px; padding: 52px 30px 62px; } .hero h1 { font-size: 64px; } .hero-card { min-height: 330px; } .service-grid, .process, .proof-list, .faq-grid, .contact, .admin-grid, .about-grid { grid-template-columns: 1fr; } .case-grid { grid-template-columns: repeat(2, 1fr); } .case-catalog { grid-template-columns: repeat(2, 1fr); } .service:nth-child(2) { transform: none; } .process-item { min-height: 0; margin: 0; padding: 20px 0; border-right: 0; border-bottom: 1px solid var(--ink); } .section { padding: 72px 0; } .section-head { display: block; } .section-intro { margin-top: 18px; } .about-meta { display: grid; grid-template-columns: 1fr; } .proof { margin: 0 -15px; padding: 62px 15px; } footer { display: block; } footer span { display: block; margin-top: 8px; } .signal-bar { grid-template-columns: repeat(3, 1fr); row-gap: 12px; } .signal-bar span:nth-child(4), .signal-bar span:nth-child(5) { display: none; } .article-card { grid-template-columns: 1fr; gap: 10px; } }
@media (max-width: 540px) { .brandmark { max-width: 180px; font-size: 12px; line-height: 1.15; } nav a:nth-child(-n+2) { display: none; } .hero { margin-top: 14px; padding: 42px 22px 50px; border-radius: 19px; } .hero h1 { font-size: 50px; } .lead { font-size: 15px; } .hero-card { min-height: 270px; } .case-grid, .case-catalog { grid-template-columns: 1fr; } .case-card { min-height: 190px; } .collection-hero { padding: 68px 0 58px; } .collection-hero h1 { font-size: 50px; } .collection-heading { display: block; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn, .service, .case-card, nav a { transition: none; } .btn:hover { transform: none; } }