:root{
  --bg:#e9e7e2;
  --ink:#161513;
  --ink-soft:#4a4741;
  --accent:#f0a6c6;
  --dark:#121110;
  --line:rgba(22,21,19,.14);
  --line-dark:rgba(233,231,226,.16);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.dot{display:inline-block;width:.22em;height:.22em;border-radius:50%;background:var(--accent);margin-left:.12em}

/* ---------- 导航 ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:18px 4vw;transition:background .3s,box-shadow .3s}
.nav.scrolled{background:rgba(233,231,226,.92);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line)}
.nav-logo{font-weight:800;font-size:16px;letter-spacing:.02em;display:flex;align-items:baseline;gap:10px;white-space:nowrap}
.nav-logo-en{font-size:11px;font-style:italic;font-weight:700;letter-spacing:.14em}
.nav-links{display:flex;gap:28px;font-size:14px;font-weight:600}
.nav-links a{opacity:.75;transition:opacity .2s}
.nav-links a:hover{opacity:1}
.nav-cta{border:1.5px solid var(--ink);border-radius:999px;padding:6px 18px;opacity:1!important;transition:all .2s}
.nav-cta:hover{background:var(--ink);color:var(--bg)}
.nav-burger{display:none;background:none;border:none;font-size:22px;cursor:pointer;color:var(--ink)}

/* ---------- HERO ---------- */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:120px 4vw 40px;position:relative}
.hero-eyebrow{font-size:clamp(13px,1.4vw,20px);font-weight:700;letter-spacing:.28em;margin-bottom:1.2vh}
.hero-title{font-size:clamp(72px,17vw,240px);font-weight:900;line-height:.98;letter-spacing:.02em}
.hero-indent{padding-left:.9em}
.hero-sub{margin-top:4vh;font-size:clamp(15px,1.8vw,22px);font-weight:600;color:var(--ink-soft)}
.hero-sub .dot{width:.5em;height:.5em;margin-right:.5em;vertical-align:middle}
.hero-meta{position:absolute;right:4vw;top:50%;transform:translateY(-50%);text-align:right;font-weight:900;
  font-size:clamp(22px,3vw,44px);line-height:1.6;writing-mode:vertical-rl;display:flex;gap:2vw}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:6vh}
.hero-tags span{border:1.5px solid var(--ink);border-radius:999px;padding:8px 18px;font-size:13px;font-weight:600}

/* ---------- 跑马灯 ---------- */
.marquee{background:var(--ink);color:var(--bg);overflow:hidden;padding:14px 0}
.marquee-track{display:flex;width:max-content;animation:marquee 26s linear infinite;font-weight:700;font-size:15px;letter-spacing:.08em;white-space:nowrap}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- 通用版块 ---------- */
.section{padding:110px 4vw}
.section-dark{background:var(--dark);color:var(--bg)}
.section-head{margin-bottom:56px}
.section-en{font-size:13px;font-weight:700;letter-spacing:.3em;opacity:.55;margin-bottom:10px}
.section-head h2{font-size:clamp(36px,5.5vw,72px);font-weight:900;letter-spacing:.02em}
.section-note{margin-top:16px;max-width:640px;color:var(--ink-soft);font-size:15px;line-height:1.8}
.section-dark .section-note{color:rgba(233,231,226,.6)}

/* ---------- 关于 ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.about-lead{font-size:clamp(20px,2.4vw,30px);font-weight:800;line-height:1.5;margin-bottom:24px}
.about-text{color:var(--ink-soft);line-height:1.9;margin-bottom:16px;font-size:15px}
.awards{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.awards li{border:1.5px solid var(--ink);border-radius:999px;padding:7px 16px;font-size:13px;font-weight:700}
.about-fig img{border-radius:18px;aspect-ratio:16/10;object-fit:cover;width:100%}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:80px}
.stat{background:var(--bg);padding:36px 28px}
.stat b{display:block;font-size:clamp(34px,4vw,56px);font-weight:900;letter-spacing:-.01em}
.stat span{font-size:13px;color:var(--ink-soft);line-height:1.7}

/* ---------- 服务 ---------- */
.services{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.service{border:1px solid var(--line-dark);border-radius:20px;padding:36px 30px;transition:transform .3s,border-color .3s}
.service:hover{transform:translateY(-6px);border-color:var(--accent)}
.service-no{font-size:14px;font-weight:800;color:var(--accent);letter-spacing:.2em;margin-bottom:18px}
.service h3{font-size:clamp(22px,2.4vw,30px);font-weight:900;margin-bottom:4px}
.service-en{font-size:12px;font-weight:700;letter-spacing:.24em;opacity:.5;margin-bottom:24px}
.service ul{list-style:none}
.service li{padding:14px 0;border-top:1px solid var(--line-dark);font-size:13.5px;line-height:1.7;color:rgba(233,231,226,.72)}
.service li b{display:block;color:var(--bg);font-size:15px;margin-bottom:2px}

/* ---------- 案例 ---------- */
.works{display:flex;flex-direction:column;gap:28px}
.work{background:#f4f2ee;border:1px solid var(--line);border-radius:20px;overflow:hidden;display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s}
.work:hover{transform:translateY(-4px);box-shadow:0 24px 48px -24px rgba(22,21,19,.35)}
.work figure{overflow:hidden}
.work figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .6s ease}
.work:hover figure img{transform:scale(1.03)}
.work-info{padding:26px 28px 30px}
.work-cat{font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--ink-soft);margin-bottom:10px}
.work-info h3{font-size:clamp(19px,2vw,26px);font-weight:900;margin-bottom:10px}
.work-desc{font-size:14px;line-height:1.8;color:var(--ink-soft)}
.work-data{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.work-data span{border:1.5px solid var(--ink);border-radius:999px;padding:6px 14px;font-size:12.5px;font-weight:600}
.work-wide{flex-direction:row;align-items:stretch}
.work-wide figure{flex:1.25}
.work-wide figure img{aspect-ratio:auto;height:100%}
.work-wide .work-info{flex:1;display:flex;flex-direction:column;justify-content:center}
.work-rev{flex-direction:row-reverse}
.work-pair{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.work-trio{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.works-more{text-align:center;color:var(--ink-soft);font-size:14px;line-height:2;padding:8px 0}

/* ---------- 合作伙伴 ---------- */
.partners-wall img{width:100%;border-radius:20px;border:1px solid var(--line-dark)}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}
.contact-card{border:1px solid var(--line);border-radius:20px;padding:34px 30px;background:#f4f2ee}
.contact-card h4{font-size:20px;font-weight:900;margin-bottom:14px}
.contact-card p{font-size:14px;line-height:1.9;color:var(--ink-soft)}
.contact-brand{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.contact-brand p{color:rgba(233,231,226,.75)}
.contact-brand h4{font-size:26px}
.contact-entity{margin-top:8px;font-weight:700;color:var(--accent)!important}
.contact-tel{margin-top:6px;font-size:16px!important;font-weight:800;color:var(--bg)!important;letter-spacing:.04em}
.contact-tel a:hover{color:var(--accent)}
.footer a{text-decoration:underline;text-underline-offset:3px}

/* ---------- 页脚 ---------- */
.footer{background:var(--dark);color:rgba(233,231,226,.6);padding:36px 4vw;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .work-wide,.work-rev{flex-direction:column}
  .work-wide figure img{aspect-ratio:16/9}
  .services,.stats,.work-trio,.contact-grid{grid-template-columns:1fr 1fr}
  .about-grid{grid-template-columns:1fr}
  .hero-meta{display:none}
}
@media (max-width:640px){
  .nav-links{position:fixed;inset:0;background:var(--bg);flex-direction:column;align-items:center;justify-content:center;
    gap:30px;font-size:20px;transform:translateY(-100%);transition:transform .35s ease}
  .nav-links.open{transform:none}
  .nav-burger{display:block;position:relative;z-index:101}
  .services,.stats,.work-pair,.work-trio,.contact-grid{grid-template-columns:1fr}
  .section{padding:80px 5vw}
  .footer{flex-direction:column}
}