/* ===========================================================
   中大工业地产 · 官网演示
   深墨黑 + 香槟金 / 宋体标题 + 黑体正文
   =========================================================== */

:root{
  --ink:#0A0B0C;
  --ink-2:#101213;
  --ink-3:#0D0F10;
  --gold:#C6A265;
  --gold-d:#A8873F;
  --cream:#F4F1EA;
  --cream-2:#EFEBE2;
  --line:#24282B;
  --line-soft:#1E2124;
  --line-c:#E3DCCC;

  --t1:#F6F4EF;
  --t2:#8F8A80;
  --t3:#6E6A61;
  --d1:#14161A;
  --d2:#5F615E;
  --d3:#8A8B85;

  --serif:'Songti SC','STSong','Noto Serif SC','Source Han Serif SC',Georgia,'Times New Roman',serif;
  --sans:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',-apple-system,sans-serif;

  --pad:clamp(20px,4.45vw,64px);
  --nav-h:84px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box;}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}

body{
  background:var(--ink);
  color:var(--t1);
  font-family:var(--sans);
  font-size:14px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}

::selection{background:var(--gold);color:var(--ink);}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar{width:9px;height:9px;}
::-webkit-scrollbar-track{background:#08090A;}
::-webkit-scrollbar-thumb{background:#2A2E31;border-radius:0;}
::-webkit-scrollbar-thumb:hover{background:#3C4144;}

/* ===========================================================
   通用排版
   =========================================================== */
.wrap{max-width:1440px;margin:0 auto;}

.eyebrow{
  display:flex;align-items:center;gap:12px;
  font-family:var(--sans);
  font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--gold);
}
.eyebrow::before{
  content:'';width:28px;height:1px;background:currentColor;flex:none;
}
.on-cream .eyebrow{color:var(--gold-d);}
.on-dark .eyebrow{color:var(--gold);}

h1,h2,h3,h4{font-family:var(--serif);font-weight:700;letter-spacing:.01em;}

.h-display{
  font-size:clamp(34px,4vw,56px);
  line-height:1.3;
  letter-spacing:.02em;
}
.h-section{
  font-size:clamp(27px,3vw,40px);
  line-height:1.42;
  letter-spacing:.02em;
}
.h-page{
  font-size:clamp(32px,4.1vw,52px);
  line-height:1.34;
  letter-spacing:.02em;
}

.lead{
  font-family:var(--serif);
  font-size:clamp(18px,2vw,24px);
  line-height:1.78;
  color:#EDE8DD;
}

.body-copy{font-size:13.5px;line-height:2;color:var(--t2);font-weight:300;}

/* ===========================================================
   导航
   =========================================================== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:900;
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 var(--pad);
  background:transparent;
  border-bottom:1px solid transparent;
  transition:height .38s var(--ease),background .38s var(--ease),
             backdrop-filter .38s var(--ease),border-color .38s var(--ease);
}
.nav.scrolled{
  height:68px;
  background:rgba(10,11,12,.72);
  -webkit-backdrop-filter:saturate(180%) blur(24px);
  backdrop-filter:saturate(180%) blur(24px);
  border-bottom:1px solid rgba(255,255,255,.08);
}

.brand{display:flex;align-items:center;gap:12px;}
.brand svg{width:34px;height:34px;flex:none;transition:transform .6s var(--ease);}
.brand:hover svg{transform:rotate(90deg);}
.brand-txt{display:flex;flex-direction:column;gap:3px;}
.brand-cn{
  font-family:var(--serif);font-weight:700;font-size:17px;
  letter-spacing:.06em;color:var(--t1);line-height:1.2;
}
.brand-en{
  font-size:8px;letter-spacing:.16em;color:#7E7869;
  text-transform:uppercase;line-height:1;
}

.nav-links{display:flex;align-items:center;gap:34px;height:100%;}
.nav-links > a{
  position:relative;
  font-size:13.5px;color:#A8A296;letter-spacing:.04em;
  transition:color .3s var(--ease);
  height:100%;display:flex;align-items:center;
}
.nav-links > a::after{
  content:'';position:absolute;left:0;right:0;bottom:24px;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .38s var(--ease);
}
.nav-links > a:hover{color:var(--t1);}
.nav-links > a:hover::after{transform:scaleX(1);}
.nav-links > a.active{color:var(--gold);}
.nav-links > a.active::after{transform:scaleX(1);}

.nav-right{display:flex;align-items:center;gap:24px;}
.nav-phone{
  font-size:13px;letter-spacing:.06em;color:#8C877A;
  transition:color .3s var(--ease);
}
.nav-phone:hover{color:var(--gold);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 24px;
  font-size:13px;letter-spacing:.04em;
  border-radius:2px;
  transition:all .34s var(--ease);
  white-space:nowrap;
}
.btn-gold{background:var(--gold);color:var(--ink);font-weight:500;}
.btn-gold:hover{background:#D6B478;transform:translateY(-2px);}
.btn-ghost{border:1px solid #3C4144;color:#E4DFD4;}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-2px);}
.btn-ink{background:var(--d1);color:var(--cream);}
.btn-ink:hover{background:#000;transform:translateY(-2px);}

/* ---------- 大菜单 ---------- */
.mega{
  position:fixed;left:0;right:0;top:var(--nav-h);z-index:880;
  background:rgba(13,15,16,.92);
  -webkit-backdrop-filter:blur(28px);
  backdrop-filter:blur(28px);
  border-bottom:1px solid var(--line);
  padding:44px var(--pad) 48px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .32s var(--ease),transform .32s var(--ease),visibility .32s;
}
.mega.open{opacity:1;visibility:visible;transform:translateY(0);}
.nav.scrolled + .mega{top:68px;}
.mega-grid{
  max-width:1440px;margin:0 auto;
  display:grid;grid-template-columns:repeat(4,1fr);gap:56px;
}
.mega-col h5{
  font-family:var(--sans);font-size:11px;font-weight:500;
  letter-spacing:.18em;color:var(--gold);margin-bottom:16px;
}
.mega-col a{
  display:block;font-size:13px;font-weight:300;color:#C8C3B8;
  padding:6px 0;transition:color .26s,transform .26s;
}
.mega-col a:hover{color:var(--gold);transform:translateX(4px);}
.mega-col .mega-phone{
  font-family:var(--sans);font-size:20px;color:var(--t1);
  letter-spacing:.05em;margin-bottom:6px;display:block;
}
.mega-col .mega-note{font-size:11px;color:var(--t3);letter-spacing:.04em;}

/* ---------- 汉堡 ---------- */
.burger{display:none;width:24px;height:24px;position:relative;}
.burger span{
  position:absolute;left:0;width:24px;height:1px;background:#E4DFD4;
  transition:transform .4s var(--ease),opacity .3s;
}
.burger span:nth-child(1){top:7px;}
.burger span:nth-child(2){top:12px;}
.burger span:nth-child(3){top:17px;}
.burger.on span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.burger.on span:nth-child(2){opacity:0;}
.burger.on span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:850;
  background:rgba(10,11,12,.98);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  padding:104px var(--pad) 40px;
  display:flex;flex-direction:column;gap:2px;
  opacity:0;visibility:hidden;transform:translateY(-16px);
  transition:opacity .34s var(--ease),transform .34s var(--ease),visibility .34s;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer a{
  font-family:var(--serif);font-size:24px;font-weight:700;
  color:#C8C3B8;padding:16px 0;border-bottom:1px solid #191C1E;
  display:flex;justify-content:space-between;align-items:center;
}
.drawer a.active{color:var(--gold);}
.drawer a small{font-family:var(--sans);font-size:10px;letter-spacing:.16em;color:#4E4A43;font-weight:400;}
.drawer .btn{margin-top:28px;width:100%;height:48px;border-bottom:0;}

/* ===========================================================
   页面容器
   =========================================================== */
.page{
  display:none;
  padding-top:var(--nav-h);
  min-height:100vh;
  animation:pageIn .55s var(--ease) both;
}
.page.active{display:block;}
@keyframes pageIn{
  from{opacity:0;transform:translateY(10px);}
  to{opacity:1;transform:translateY(0);}
}

.section{width:100%;}
.pad{padding-left:var(--pad);padding-right:var(--pad);}
.inner{max-width:1440px;margin:0 auto;display:inherit;width:100%;}

/* 进入视口动画 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
.reveal.in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.08s;}
.reveal.d2{transition-delay:.16s;}
.reveal.d3{transition-delay:.24s;}
.reveal.d4{transition-delay:.32s;}

/* 静态模式：无动画渲染，用于截图导出 / 打印 / 无障碍 */
.static-mode .reveal{opacity:1 !important;transform:none !important;}
.static-mode .page{animation:none !important;}
.static-mode .hero-visual img{animation:none !important;}
.static-mode .step .dot::after{animation:none !important;}
.static-mode .scroll-hint i::after{animation:none !important;}
.static-mode .hero{min-height:760px;max-height:760px;}

/* ===========================================================
   HERO
   =========================================================== */
.hero{
  display:grid;grid-template-columns:1fr 46.5%;
  min-height:calc(100vh - var(--nav-h));
  max-height:860px;
  background:var(--ink);
  position:relative;
  overflow:hidden;
}
.hero-copy{
  display:flex;flex-direction:column;justify-content:center;
  gap:26px;
  padding:60px var(--pad) 60px max(var(--pad),calc((100vw - 1440px)/2 + 64px));
  position:relative;z-index:2;
}
.hero h1{
  font-size:clamp(34px,4.35vw,58px);
  line-height:1.34;
  letter-spacing:.03em;
  color:var(--t1);
}
.hero-sub{
  max-width:440px;
  font-size:13.5px;line-height:2;font-weight:300;
  color:#9A9488;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:2px;}
.hero-trust{
  font-size:11px;letter-spacing:.08em;color:#6E6A61;
  padding-top:6px;
}
.hero-visual{
  position:relative;overflow:hidden;
  background:#070808;
}
.hero-visual img{
  width:100%;height:100%;object-fit:cover;
  animation:slowZoom 22s var(--ease) infinite alternate;
}
@keyframes slowZoom{
  from{transform:scale(1.03);}
  to{transform:scale(1.12);}
}
.hero-visual::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,11,12,.92) 0%,rgba(10,11,12,.35) 32%,rgba(10,11,12,0) 62%);
  pointer-events:none;
}

/* 滚动提示 */
.scroll-hint{
  position:absolute;left:max(var(--pad),calc((100vw - 1440px)/2 + 64px));
  bottom:26px;display:flex;align-items:center;gap:10px;
  font-size:10px;letter-spacing:.24em;color:#4E4A43;
}
.scroll-hint i{
  display:block;width:1px;height:34px;background:linear-gradient(#4E4A43,transparent);
  position:relative;overflow:hidden;
}
.scroll-hint i::after{
  content:'';position:absolute;top:-34px;left:0;width:1px;height:34px;
  background:var(--gold);animation:scrollDot 2.4s var(--ease) infinite;
}
@keyframes scrollDot{
  0%{top:-34px;}60%,100%{top:34px;}
}

/* ===========================================================
   数据条（米色）
   =========================================================== */
.stats{
  background:var(--cream);
  padding:0 var(--pad);
}
.stats-inner{
  max-width:1440px;margin:0 auto;
  display:grid;grid-template-columns:repeat(5,1fr);
  padding:38px 0;
  gap:24px;
}
.stat{display:flex;flex-direction:column;gap:4px;}
.stat b{
  font-family:var(--sans);font-weight:500;
  font-size:clamp(26px,2.7vw,38px);
  letter-spacing:-.02em;color:var(--d1);line-height:1.2;
}
.stat span{font-size:11.5px;letter-spacing:.08em;color:#6E6F6B;}
.stat b em{font-style:normal;font-size:.6em;letter-spacing:0;}

/* ===========================================================
   区块头
   =========================================================== */
.sec-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:48px;flex-wrap:wrap;
}
.sec-head .left{display:flex;flex-direction:column;gap:20px;}
.sec-head .desc{
  font-size:13px;line-height:2;font-weight:300;color:var(--t2);
  max-width:400px;text-align:right;
}
.on-cream .sec-head .desc{color:var(--d2);}

/* ===========================================================
   业务卡片
   =========================================================== */
.services{background:var(--ink);padding:112px var(--pad) 104px;}
.services-inner{max-width:1440px;margin:0 auto;display:flex;flex-direction:column;gap:54px;}

.svc-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.svc-card{
  position:relative;
  background:var(--ink-2);
  border:1px solid var(--line);
  padding:30px 28px 34px;
  display:flex;flex-direction:column;gap:13px;
  transition:border-color .4s var(--ease),transform .4s var(--ease),background .4s var(--ease);
  overflow:hidden;
}
.svc-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--gold),transparent);
  transform:scaleX(0);transform-origin:left;
  transition:transform .5s var(--ease);
}
.svc-card:hover{border-color:#3C4144;transform:translateY(-4px);background:#121516;}
.svc-card:hover::before{transform:scaleX(1);}
.svc-num{font-size:11px;letter-spacing:.18em;color:var(--gold);}
.svc-card h3{
  font-size:20px;font-weight:600;color:#F0EDE6;letter-spacing:.03em;
}
.svc-card p{font-size:13px;line-height:1.85;font-weight:300;color:#8B867C;}
.svc-more{
  margin-top:auto;padding-top:14px;
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;letter-spacing:.06em;color:#5F5C55;
  transition:color .3s;
}
.svc-card:hover .svc-more{color:var(--gold);}
.svc-more svg{width:14px;height:14px;transition:transform .34s var(--ease);}
.svc-card:hover .svc-more svg{transform:translateX(4px);}

/* ===========================================================
   园区卡
   =========================================================== */
.parks{background:var(--ink);padding:0 var(--pad) 112px;}
.parks-inner{max-width:1440px;margin:0 auto;display:flex;flex-direction:column;gap:44px;}
.park-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.park-card{
  background:var(--ink-2);border:1px solid var(--line);
  overflow:hidden;display:flex;flex-direction:column;
  transition:border-color .4s,transform .4s var(--ease);
}
.park-card:hover{border-color:#3C4144;transform:translateY(-4px);}
.park-cover{height:250px;overflow:hidden;position:relative;}
.park-cover img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease);}
.park-card:hover .park-cover img{transform:scale(1.06);}
.park-body{padding:24px 26px 30px;display:flex;flex-direction:column;gap:10px;}
.park-region{font-size:11px;letter-spacing:.16em;color:var(--gold);}
.park-card h3{font-size:17px;line-height:1.6;font-weight:600;color:#F0EDE6;letter-spacing:.03em;}
.park-spec{font-size:12px;color:var(--gold);letter-spacing:.03em;}
.park-card p{font-size:12px;line-height:1.9;font-weight:300;color:#8B867C;}

/* ===========================================================
   案例
   =========================================================== */
.cases{background:var(--cream);padding:108px var(--pad);}
.cases-inner{max-width:1440px;margin:0 auto;display:flex;flex-direction:column;gap:42px;}

.feature{
  display:grid;grid-template-columns:640px 1fr;
  background:#fff;border:1px solid var(--line-c);
  overflow:hidden;min-height:430px;
}
.feature-img{overflow:hidden;position:relative;}
.feature-img img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease);}
.feature:hover .feature-img img{transform:scale(1.04);}
.feature-body{
  padding:44px 52px;display:flex;flex-direction:column;
  justify-content:center;gap:16px;
}
.feature-body .region{font-size:11px;letter-spacing:.14em;color:var(--gold-d);}
.feature-body h3{
  font-size:clamp(24px,2.3vw,30px);line-height:1.5;
  color:var(--d1);letter-spacing:.02em;
}
.feature-body p{font-size:13px;line-height:2;font-weight:300;color:var(--d2);}
.metrics{display:flex;gap:38px;flex-wrap:wrap;margin-top:8px;}
.metric{display:flex;flex-direction:column;gap:2px;}
.metric b{font-family:var(--sans);font-weight:500;font-size:19px;color:var(--d1);letter-spacing:-.01em;}
.metric span{font-size:11px;color:var(--d3);letter-spacing:.06em;}

.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.case-card{
  background:#fff;border:1px solid var(--line-c);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.case-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -22px rgba(70,60,40,.32);}
.case-card.hide{display:none;}
.case-cover{height:190px;overflow:hidden;}
.case-cover img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease);}
.case-card:hover .case-cover img{transform:scale(1.06);}
.case-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:7px;}
.case-body .region{font-size:11px;letter-spacing:.14em;color:var(--gold-d);}
.case-body h4{font-size:16px;font-weight:600;color:var(--d1);letter-spacing:.02em;}
.case-body .spec{font-size:11.5px;line-height:1.9;color:#7A7C77;letter-spacing:.01em;}

.more-link{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;letter-spacing:.04em;color:var(--d1);
  align-self:flex-start;
}
.more-link svg{width:16px;height:16px;transition:transform .34s var(--ease);}
.more-link:hover svg{transform:translateX(5px);}

/* 筛选 */
.filters{display:flex;gap:10px;flex-wrap:wrap;}
.chip{
  padding:9px 20px;border-radius:2px;border:1px solid #2E3235;
  font-size:12px;letter-spacing:.04em;color:#9A9488;
  transition:all .3s var(--ease);
}
.chip:hover{border-color:var(--gold);color:var(--gold);}
.chip.on{background:var(--gold);border-color:var(--gold);color:var(--ink);font-weight:500;}
.on-cream .chip{border-color:#D8D0BE;color:#6E6F6B;}
.on-cream .chip:hover{border-color:var(--gold-d);color:var(--gold-d);}
.on-cream .chip.on{background:var(--gold-d);border-color:var(--gold-d);color:#fff;}

/* ===========================================================
   关于横条
   =========================================================== */
.about-strip{
  display:grid;grid-template-columns:1fr 1fr;
  background:var(--ink);
}
.about-strip .visual{overflow:hidden;min-height:520px;position:relative;}
.about-strip .visual img{width:100%;height:100%;object-fit:cover;}
.about-strip .visual::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,transparent 55%,var(--ink) 100%);
}
.about-body{
  display:flex;flex-direction:column;justify-content:center;
  gap:22px;padding:80px max(var(--pad),calc((100vw - 1440px)/2 + 64px)) 80px 0;
}
.about-body h2{font-size:clamp(26px,2.6vw,34px);line-height:1.6;color:var(--t1);}
.about-body p{font-size:13px;line-height:2.05;font-weight:300;color:#8F8A80;}
.values{
  font-family:var(--serif);font-size:19px;letter-spacing:.1em;color:var(--gold);
  display:flex;gap:26px;flex-wrap:wrap;
}
.about-meta{display:flex;gap:30px;flex-wrap:wrap;font-size:11px;letter-spacing:.04em;color:#5F5C55;padding-top:4px;}

/* ===========================================================
   二维码 CTA
   =========================================================== */
.cta-qr{background:var(--cream);padding:100px var(--pad);}
.cta-qr-inner{
  max-width:1440px;margin:0 auto;
  display:grid;grid-template-columns:1fr 336px;gap:64px;align-items:center;
}
.cta-qr h2{font-size:clamp(30px,3.3vw,44px);color:var(--d1);line-height:1.4;}
.cta-qr p{font-size:13.5px;line-height:2;font-weight:300;color:var(--d2);max-width:560px;}
.cta-divider{height:1px;background:#DDD5C4;margin:6px 0;}
.contact-rows{display:flex;flex-direction:column;gap:14px;}
.contact-row{display:flex;align-items:center;gap:12px;font-size:13.5px;color:var(--d1);}
.contact-row svg{width:16px;height:16px;flex:none;stroke:#14161A;}
.contact-row.muted{font-size:12.5px;color:var(--d2);}

.qr-card{
  background:#fff;border:1px solid var(--line-c);border-radius:2px;
  padding:32px 30px 26px;
  display:flex;flex-direction:column;align-items:center;gap:14px;
  box-shadow:0 18px 44px -12px rgba(90,78,56,.18);
  transition:transform .45s var(--ease),box-shadow .45s var(--ease);
}
.qr-card:hover{transform:translateY(-5px);box-shadow:0 26px 56px -12px rgba(90,78,56,.26);}
.qr-card img{width:216px;height:216px;cursor:zoom-in;}
.qr-card .t{font-size:14px;letter-spacing:.06em;color:var(--d1);}
.qr-card .s{font-size:11px;letter-spacing:.1em;color:var(--d3);}

/* ===========================================================
   页脚
   =========================================================== */
.footer{background:var(--ink);padding:74px var(--pad) 32px;}
.footer-inner{max-width:1440px;margin:0 auto;display:flex;flex-direction:column;gap:54px;}
.foot-top{display:flex;justify-content:space-between;gap:60px;flex-wrap:wrap;}
.foot-brand{display:flex;flex-direction:column;gap:16px;max-width:360px;}
.foot-brand .row{display:flex;align-items:center;gap:12px;}
.foot-brand .row svg{width:32px;height:32px;}
.foot-brand .name{font-family:var(--serif);font-size:16px;font-weight:700;color:#F3F1EC;letter-spacing:.05em;}
.foot-brand p{font-size:12px;line-height:2;font-weight:300;color:#6E6A61;}
.foot-cols{display:flex;gap:72px;flex-wrap:wrap;}
.foot-col{display:flex;flex-direction:column;gap:11px;}
.foot-col h5{font-family:var(--sans);font-size:12px;font-weight:500;letter-spacing:.12em;color:var(--gold);margin-bottom:3px;}
.foot-col a,.foot-col span{font-size:12px;color:#8B867C;letter-spacing:.01em;transition:color .3s;}
.foot-col a:hover{color:var(--gold);}
.foot-bottom{
  border-top:1px solid var(--line-soft);padding-top:24px;
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:11px;color:#4E4A43;letter-spacing:.04em;
}

/* 浮动规范按钮 */
.fab{
  position:fixed;right:24px;bottom:24px;z-index:700;
  width:52px;height:52px;border-radius:50%;
  background:rgba(198,162,101,.14);
  border:1px solid rgba(198,162,101,.4);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  display:flex;align-items:center;justify-content:center;
  color:var(--gold);font-size:10px;letter-spacing:.04em;
  opacity:.55;
  transition:all .36s var(--ease);
}
.fab:hover{background:var(--gold);color:var(--ink);transform:scale(1.06);opacity:1;}
.fab svg{width:20px;height:20px;}

/* ===========================================================
   页面头（子页）
   =========================================================== */
.page-head{
  padding:96px var(--pad) 62px;
  background:var(--ink);
}
.page-head-inner{max-width:1440px;margin:0 auto;display:flex;flex-direction:column;gap:24px;}
.page-head p{font-size:13.5px;line-height:2;font-weight:300;color:#8F8A80;max-width:780px;}
.page-head .rule{height:1px;background:var(--line-soft);margin-top:8px;}

/* ===========================================================
   关于页
   =========================================================== */
.intro{background:var(--ink);padding:88px var(--pad);}
.intro-inner{
  max-width:1440px;margin:0 auto;
  display:grid;grid-template-columns:220px 1fr;gap:72px;
}
.intro-label{display:flex;flex-direction:column;gap:12px;align-items:flex-start;}
.intro-label .num{font-size:11px;letter-spacing:.18em;color:var(--gold);}
.intro-label h3{font-size:18px;font-weight:600;color:#F0EDE6;letter-spacing:.04em;}
.intro-label .r{width:32px;height:1px;background:#2E3235;margin-top:4px;}
.intro-body{display:flex;flex-direction:column;gap:22px;}
.intro-body .lead{font-size:clamp(19px,2.05vw,25px);line-height:1.76;color:#EDE8DD;}
.intro-body p{font-size:13.5px;line-height:2.05;font-weight:300;color:#8F8A80;}

.needs{background:var(--cream);padding:80px var(--pad);}
.needs-inner{
  max-width:1440px;margin:0 auto;
  display:grid;grid-template-columns:repeat(3,1fr);gap:48px;
}
.need{display:flex;flex-direction:column;gap:12px;}
.need .num{font-size:11px;letter-spacing:.18em;color:var(--gold-d);}
.need h4{font-size:21px;font-weight:600;color:var(--d1);letter-spacing:.03em;}
.need p{font-size:12.5px;line-height:1.95;font-weight:300;color:var(--d2);}

.gm{background:var(--ink);padding:96px var(--pad);}
.gm-inner{
  max-width:1440px;margin:0 auto;
  display:grid;grid-template-columns:400px 1fr;gap:64px;align-items:center;
}
.gm-card{
  background:var(--ink-2);border:1px solid var(--line);
  padding:36px 34px 40px;display:flex;flex-direction:column;gap:14px;
}
.gm-card .role{font-size:10px;letter-spacing:.18em;color:var(--gold);}
.gm-card .name{font-family:var(--serif);font-size:34px;font-weight:700;color:var(--t1);letter-spacing:.08em;}
.gm-card .r{height:1px;background:var(--line);margin:4px 0;}
.gm-card li{list-style:none;font-size:12px;line-height:1.95;color:#8F8A80;}
.gm-copy{display:flex;flex-direction:column;gap:24px;}
.gm-copy .quote{font-family:var(--serif);font-size:clamp(26px,3vw,34px);line-height:1.55;color:var(--t1);letter-spacing:.02em;}
.gm-copy p{font-size:13.5px;line-height:2.05;font-weight:300;color:#8F8A80;}
.inline-cta{display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--gold);letter-spacing:.04em;}
.inline-cta svg{width:16px;height:16px;transition:transform .34s var(--ease);}
.inline-cta:hover svg{transform:translateX(5px);}

.endorse{background:var(--ink);padding:0 var(--pad) 96px;}
.endorse-inner{max-width:1440px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.endorse-item{
  display:flex;flex-direction:column;gap:14px;padding-top:22px;
  border-top:1px solid var(--line);
}
.endorse-item p{font-size:12px;line-height:2;font-weight:300;color:#8F8A80;}

/* ===========================================================
   业务页
   =========================================================== */
.svc-rows{background:var(--ink);padding:0 var(--pad) 40px;}
.svc-rows-inner{max-width:1440px;margin:0 auto;}
.srow{
  display:grid;grid-template-columns:56px 280px 1fr;gap:32px;
  padding:28px 0;border-bottom:1px solid var(--line-soft);
  align-items:start;
  transition:padding-left .4s var(--ease);
}
.srow:hover{padding-left:10px;}
.srow .num{font-size:11px;letter-spacing:.18em;color:var(--gold);padding-top:6px;}
.srow h4{font-size:19px;font-weight:600;color:#F0EDE6;letter-spacing:.03em;}
.srow p{font-size:12.5px;line-height:1.95;font-weight:300;color:#8B867C;max-width:720px;}

.flow{background:var(--ink);padding:76px var(--pad) 96px;}
.flow-inner{max-width:1440px;margin:0 auto;display:flex;flex-direction:column;gap:30px;}
.flow h2{font-size:clamp(24px,2.6vw,34px);color:var(--t1);}
.flow-rule{height:1px;background:#2A2E31;}
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:0;}
.step{padding:0 20px 0 0;display:flex;flex-direction:column;gap:10px;position:relative;}
.step .dot{
  width:6px;height:6px;border-radius:50%;background:var(--gold);
  position:relative;top:0;margin-bottom:-2px;
}
.step .dot::after{
  content:'';position:absolute;left:0;top:0;width:6px;height:6px;border-radius:50%;
  background:var(--gold);animation:pulse 2.8s var(--ease) infinite;
}
@keyframes pulse{
  0%{transform:scale(1);opacity:.8;}
  70%,100%{transform:scale(2.6);opacity:0;}
}
.step .num{font-size:11px;letter-spacing:.14em;color:#5F5C55;}
.step h5{font-family:var(--serif);font-size:15px;font-weight:600;color:#F0EDE6;letter-spacing:.03em;}
.step span{font-size:11px;line-height:1.8;color:#7A766D;}

.issues{background:var(--cream);padding:86px var(--pad);}
.issues-inner{max-width:1440px;margin:0 auto;display:flex;flex-direction:column;gap:34px;}
.issue-cols{display:grid;grid-template-columns:1fr 1fr;gap:56px;}
.issue-item{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px solid #E6DFCE;
  font-size:12.5px;line-height:1.9;color:#4C4E4A;
}
.issue-item b{
  font-family:var(--sans);font-weight:500;font-size:11px;color:var(--gold-d);
  letter-spacing:.1em;flex:none;padding-top:3px;
}

/* ===========================================================
   案例页
   =========================================================== */
.cases-page{background:var(--ink);padding:0 var(--pad) 96px;}
.cases-page-inner{max-width:1440px;margin:0 auto;display:flex;flex-direction:column;gap:26px;}
.cases-page .case-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
.cases-page .case-card{background:var(--ink-2);border-color:var(--line);}
.cases-page .case-card:hover{border-color:#3C4144;box-shadow:none;}
.cases-page .case-cover{height:290px;}
.cases-page .case-body .region{color:var(--gold);}
.cases-page .case-body h4{font-size:21px;color:#F0EDE6;}
.cases-page .case-body .spec{font-size:11.5px;color:#8B867C;line-height:1.95;}

/* ===========================================================
   园区页
   =========================================================== */
.park-block{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;
  padding:72px var(--pad) 56px;align-items:center;
}
.park-block-inner{max-width:1440px;margin:0 auto;display:contents;}
.park-block .visual{overflow:hidden;height:420px;position:relative;background:#070808;}
.park-block .visual img{width:100%;height:100%;object-fit:cover;transition:transform 1.4s var(--ease);}
.park-block:hover .visual img{transform:scale(1.04);}
.park-block .copy{display:flex;flex-direction:column;gap:16px;}
.park-block .copy .region{font-size:11px;letter-spacing:.16em;color:var(--gold);}
.park-block .copy h3{font-size:clamp(22px,2.4vw,26px);line-height:1.55;color:var(--t1);letter-spacing:.02em;}
.park-block .copy p{font-size:13px;line-height:2;font-weight:300;color:#8F8A80;}
.park-block .copy .spec-line{font-size:12px;color:#6E6A61;letter-spacing:.03em;line-height:1.9;}
.park-block .copy .spec-line b{color:var(--gold);font-weight:400;}
.park-block.rev .visual{order:2;}

.result-strip{background:var(--cream);padding:0 var(--pad);}
.result-strip-inner{
  max-width:1440px;margin:0 auto;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:46px 0;
}
.result-strip .rs b{
  font-family:var(--sans);font-weight:500;font-size:32px;color:var(--d1);display:block;line-height:1.2;
}
.result-strip .rs span{font-size:11.5px;color:#6E6F6B;letter-spacing:.06em;}

/* ===========================================================
   联系页
   =========================================================== */
.contact-sec{background:var(--ink);padding:20px var(--pad) 84px;}
.contact-inner{
  max-width:1440px;margin:0 auto;
  display:grid;grid-template-columns:1fr 748px;gap:60px;align-items:start;
}
.qr-trio{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.qr-mini{
  background:#fff;padding:24px 22px 22px;
  display:flex;flex-direction:column;align-items:center;gap:12px;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.qr-mini:hover{transform:translateY(-5px);box-shadow:0 22px 44px -16px rgba(0,0,0,.5);}
.qr-mini img{width:100%;max-width:180px;aspect-ratio:1;cursor:zoom-in;}
.qr-mini .t{font-size:13px;letter-spacing:.05em;color:var(--d1);}
.qr-mini .s{font-size:10px;letter-spacing:.06em;color:var(--d3);}

.form-sec{background:var(--cream);padding:72px var(--pad) 80px;}
.form-inner{
  max-width:1440px;margin:0 auto;
  display:grid;grid-template-columns:380px 1fr;gap:72px;
}
.form-inner h3{font-size:clamp(23px,2.4vw,28px);line-height:1.6;color:var(--d1);}
.form-inner .desc{font-size:12.5px;line-height:2;font-weight:300;color:var(--d2);margin-top:16px;}
.fields{display:flex;flex-direction:column;gap:14px;}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.field{
  height:54px;background:#fff;border:1px solid #E0D9C9;border-radius:2px;
  padding:0 18px;display:flex;align-items:center;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.field:focus-within{border-color:var(--gold-d);box-shadow:0 0 0 3px rgba(168,135,63,.1);}
.field input{
  width:100%;border:0;outline:0;background:none;
  font-family:var(--sans);font-size:13px;color:var(--d1);
}
.field input::placeholder{color:#A6A79F;}
textarea.field{
  height:108px;padding:16px 18px;align-items:flex-start;
  resize:none;width:100%;font-family:var(--sans);font-size:13px;
  color:var(--d1);outline:0;
}
textarea.field::placeholder{color:#A6A79F;}
.form-foot{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;}
.form-note{font-size:10.5px;color:#9A9B93;letter-spacing:.03em;}
.toast{
  position:fixed;left:50%;bottom:40px;transform:translate(-50%,20px);
  background:var(--d1);color:var(--cream);
  padding:14px 26px;border-radius:2px;font-size:13px;
  opacity:0;pointer-events:none;transition:all .4s var(--ease);z-index:999;
}
.toast.on{opacity:1;transform:translate(-50%,0);}

/* ===========================================================
   规范页
   =========================================================== */
.spec-page{background:var(--cream-2);padding:0 var(--pad) 90px;}
.spec-inner{max-width:1440px;margin:0 auto;display:flex;flex-direction:column;gap:44px;}
.spec-block{display:flex;flex-direction:column;gap:14px;}
.spec-label{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;}
.spec-label .n{font-size:11px;letter-spacing:.16em;color:var(--gold-d);}
.spec-label h4{font-family:var(--sans);font-size:13px;font-weight:500;color:var(--d1);letter-spacing:.06em;}
.spec-label span{font-size:11px;color:var(--d3);letter-spacing:.02em;}
.spec-plate{background:var(--ink);overflow:hidden;}
.plate-nav{
  height:84px;display:flex;align-items:center;justify-content:space-between;
  padding:0 32px;border-bottom:1px solid var(--line);
}
.plate-nav.glass{
  background:rgba(10,11,12,.62);
  -webkit-backdrop-filter:saturate(180%) blur(24px);
  backdrop-filter:saturate(180%) blur(24px);
  border-bottom:1px solid rgba(255,255,255,.12);
  position:relative;
  isolation:isolate;
}
.plate-nav.glass::before{
  content:'';position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(rgba(10,11,12,.45),rgba(10,11,12,.45)),
    url('park_yunfu.jpg') center 45%/cover;
  opacity:.9;
}
.plate-links{display:flex;gap:28px;font-size:12.5px;color:#A8A296;}
.plate-links .on{color:var(--gold);}
.spec-swatches{display:grid;grid-template-columns:repeat(auto-fill,minmax(78px,1fr));gap:10px;}
.sw{display:flex;flex-direction:column;gap:7px;}
.sw i{display:block;height:52px;border-radius:2px;border:1px solid rgba(0,0,0,.07);}
.sw b{font-family:var(--sans);font-size:10px;font-weight:500;color:var(--d1);letter-spacing:.04em;}
.sw span{font-size:9.5px;color:var(--d3);letter-spacing:.06em;font-variant-numeric:tabular-nums;}
.spec-panel{background:#fff;padding:36px 38px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:52px;}
.spec-panel h5{font-family:var(--sans);font-size:11px;font-weight:500;letter-spacing:.14em;color:var(--gold-d);margin-bottom:16px;}
.spec-btns{display:flex;gap:10px;flex-wrap:wrap;}
.serif-sample{font-family:var(--serif);font-size:22px;font-weight:700;color:var(--d1);letter-spacing:.03em;}
.sans-sample{font-size:13px;font-weight:300;color:var(--d2);margin-top:8px;}

/* 二维码放大 */
.lightbox{
  position:fixed;inset:0;z-index:1000;
  background:rgba(5,5,6,.9);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  display:flex;align-items:center;justify-content:center;flex-direction:column;gap:18px;
  opacity:0;visibility:hidden;transition:opacity .34s var(--ease),visibility .34s;
}
.lightbox.open{opacity:1;visibility:visible;}
.lightbox img{width:min(340px,72vw);height:auto;background:#fff;padding:16px;}
.lightbox p{font-size:12px;letter-spacing:.1em;color:#8F8A80;}

/* ===========================================================
   响应式
   =========================================================== */
@media (max-width:1180px){
  .hero{grid-template-columns:1fr;}
  .hero-visual{position:absolute;inset:0;z-index:0;}
  .hero-visual::after{background:linear-gradient(90deg,rgba(10,11,12,.94),rgba(10,11,12,.6));}
  .hero-copy{z-index:2;padding:80px var(--pad);}
  .about-strip{grid-template-columns:1fr;}
  .about-strip .visual{min-height:340px;order:2;}
  .about-strip .visual::after{background:linear-gradient(180deg,transparent 60%,var(--ink));}
  .about-body{padding:60px var(--pad);}
  .feature{grid-template-columns:1fr;}
  .feature-img{height:340px;}
  .gm-inner{grid-template-columns:1fr;gap:44px;}
  .contact-inner{grid-template-columns:1fr;gap:44px;}
  .form-inner{grid-template-columns:1fr;gap:34px;}
  .park-block{grid-template-columns:1fr;gap:32px;}
  .park-block.rev .visual{order:0;}
  .spec-panel{grid-template-columns:1fr 1fr;}
}

@media (max-width:980px){
  .nav-links,.nav-phone{display:none;}
  .burger{display:block;}
  .mega{display:none;}
  .svc-grid{grid-template-columns:repeat(2,1fr);}
  .park-grid{grid-template-columns:1fr 1fr;}
  .case-grid{grid-template-columns:1fr 1fr;}
  .cases-page .case-grid{grid-template-columns:1fr;}
  .stats-inner{grid-template-columns:repeat(3,1fr);gap:26px;}
  .steps{grid-template-columns:repeat(3,1fr);gap:28px 0;}
  .needs-inner{grid-template-columns:1fr;gap:32px;}
  .endorse-inner{grid-template-columns:1fr;}
  .issue-cols{grid-template-columns:1fr;gap:0;}
  .intro-inner{grid-template-columns:1fr;gap:32px;}
  .cta-qr-inner{grid-template-columns:1fr;gap:44px;}
  .srow{grid-template-columns:36px 1fr;gap:18px;}
  .srow p{grid-column:2;}
}

@media (max-width:680px){
  :root{--nav-h:64px;--pad:20px;}
  .nav{padding:0 20px;}
  .nav-right{gap:14px;}
  .nav-right .btn-gold{display:none;}
  .brand-cn{font-size:15px;}
  .brand-en{display:none;}
  .svc-grid,.park-grid,.case-grid,.result-strip-inner{grid-template-columns:1fr;}
  .stats-inner{grid-template-columns:1fr 1fr;gap:22px 16px;padding:30px 0;}
  .steps{grid-template-columns:1fr 1fr;gap:26px 0;}
  .frow{grid-template-columns:1fr;}
  .qr-trio{grid-template-columns:1fr 1fr;}
  .page-head{padding:64px 20px 44px;}
  .services,.cases{padding-top:72px;padding-bottom:72px;}
  .hero{min-height:auto;max-height:none;}
  .hero-copy{padding:110px 20px 70px;gap:22px;}
  .hero h1{font-size:33px;line-height:1.36;}
  .hero-sub{font-size:13px;max-width:100%;}
  .hero-cta{flex-direction:column;width:100%;}
  .hero-cta .btn{width:100%;}
  .scroll-hint{display:none;}
  .spec-panel{grid-template-columns:1fr;gap:32px;padding:28px;}
  .footer{padding-top:56px;}
  .foot-cols{gap:40px;}
  .fab{width:46px;height:46px;right:16px;bottom:16px;}
}