/* ============================================================
   Works Universe 官网 — 公共样式表
   工业蓝图美学：深色背景 + 蓝图网格 + 安全橙/警示黄
   ============================================================ */

:root{
  --bg:#14161a;
  --bg-soft:#1b1e23;
  --panel:#1f2329;
  --blueprint:#0d2740;
  --blueprint-soft:#12335a;
  --grid-line:rgba(140,190,255,.09);
  --orange:#ff6a1f;
  --orange-dim:#c8511b;
  --yellow:#ffc23c;
  --steel:#8a97a6;
  --paper:#ece5d3;
  --text:#f3f1ec;
  --text-dim:#9aa0a8;
  --border:rgba(255,255,255,.09);
  --radius:2px;
  --display:'Oswald',-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  --body:'Work Sans',-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'IBM Plex Mono',Consolas,monospace;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--body);
  line-height:1.6;
  overflow-x:hidden;
}
::selection{background:var(--orange);color:#14161a;}
a{color:inherit;text-decoration:none;}
img,svg{display:block;max-width:100%;}
.wrap{max-width:1240px;margin:0 auto;padding:0 32px;}

/* 噪点/网格纹理 */
.grain{
  position:fixed;inset:0;pointer-events:none;z-index:2;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}
.blueprint-grid{
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size:42px 42px;
}

/* 警示斜纹分隔条 */
.caution-strip{
  height:10px;
  background:repeating-linear-gradient(135deg, var(--orange) 0 18px, #16181c 18px 36px);
}
.caution-strip.thin{height:6px;}

/* 顶部标签 */
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--yellow);
  margin-bottom:18px;
}
.kicker::before{content:"";width:8px;height:8px;background:var(--yellow);display:inline-block;transform:rotate(45deg);}

h1,h2,h3{font-family:var(--display);font-weight:700;text-transform:uppercase;letter-spacing:.01em;}

.btn{
  font-family:var(--mono);
  font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;
  padding:15px 30px;border:1px solid var(--border);
  display:inline-flex;align-items:center;gap:10px;
  position:relative;transition:all .25s ease;cursor:pointer;
  background:transparent;color:var(--text);
}
.btn-primary{
  background:var(--orange);border-color:var(--orange);color:#181008;font-weight:600;
}
.btn-primary:hover{background:var(--yellow);border-color:var(--yellow);transform:translateY(-2px);}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px);}

/* ===== NAV ===== */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:22px 0;
  transition:background .3s ease, padding .3s ease, border-color .3s ease;
  border-bottom:1px solid transparent;
}
header.scrolled{background:rgba(20,22,26,.92);backdrop-filter:blur(10px);padding:14px 0;border-color:var(--border);}
nav{display:flex;align-items:center;justify-content:space-between;}
.logo{
  font-family:var(--display);font-weight:700;font-size:1.15rem;letter-spacing:.03em;
  display:flex;align-items:center;gap:10px;
}
.logo .dot{width:10px;height:10px;background:var(--orange);display:inline-block;}
.navlinks{display:flex;gap:30px;align-items:center;}
.navlinks a{
  font-family:var(--mono);font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;
  color:var(--text-dim);transition:color .2s;position:relative;
}
.navlinks a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;background:var(--orange);transition:width .25s;}
.navlinks a:hover{color:var(--text);}
.navlinks a:hover::after{width:100%;}
.navlinks a.active{color:var(--orange);}
.navlinks a.active::after{width:100%;}
.navlinks .btn{padding:10px 20px;font-size:.75rem;}
@media (max-width:960px){ .navlinks a:not(.btn){display:none;} }

/* ===== HERO ===== */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:140px 0 100px;
  background:
    radial-gradient(ellipse 90% 60% at 75% 8%, rgba(255,106,31,.14), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, #101216 100%);
  overflow:hidden;
}
.hero .blueprint-grid{position:absolute;inset:0;opacity:.6;}
.hero-content{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center;}
.hero-title{
  font-size:clamp(2.6rem,5.4vw,4.7rem);line-height:1.04;
  margin:14px 0 26px;
}
.hero-title .line{display:block;overflow:hidden;}
.hero-title span{display:inline-block;animation:riseUp .8s cubic-bezier(.2,.8,.2,1) both;}
.hero-title .accent{color:var(--orange);}
.hero-title .line:nth-child(1) span{animation-delay:.05s;}
.hero-title .line:nth-child(2) span{animation-delay:.18s;}
.hero-title .line:nth-child(3) span{animation-delay:.31s;}
@keyframes riseUp{from{transform:translateY(110%);opacity:0;}to{transform:translateY(0);opacity:1;}}

.hero-sub{
  font-size:1.08rem;color:var(--text-dim);max-width:520px;margin-bottom:38px;
  animation:fadeUp .8s ease .5s both;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;animation:fadeUp .8s ease .62s both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:translateY(0);}}

.hero-stats{display:flex;gap:38px;margin-top:56px;animation:fadeUp .8s ease .74s both;}
.hero-stats .stat b{
  font-family:var(--mono);font-size:1.9rem;color:var(--yellow);display:block;
}
.hero-stats .stat span{font-size:.78rem;color:var(--text-dim);letter-spacing:.03em;}

/* 等距建筑插画（纯CSS） */
.rig{position:relative;height:520px;animation:fadeUp 1s ease .3s both;}
.rig-card{
  position:absolute;background:var(--panel);border:1px solid var(--border);
  box-shadow:0 30px 60px -20px rgba(0,0,0,.6);
}
.rig-tower{
  left:50%;bottom:40px;width:210px;height:340px;transform:translateX(-50%);
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,.05) 0 2px, transparent 2px 38px),
    linear-gradient(160deg,#242830,#181b20);
  border-top:4px solid var(--orange);
}
.rig-tower::before{
  content:"BUILDWORKS TOWER";position:absolute;bottom:14px;left:0;right:0;text-align:center;
  font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;color:var(--text-dim);
}
.crane{
  position:absolute;right:8%;top:0;width:6px;height:270px;background:var(--yellow);
}
.crane::before{
  content:"";position:absolute;top:0;left:-140px;width:220px;height:5px;background:var(--yellow);
  transform-origin:right center;
  animation:craneSwing 7s ease-in-out infinite;
}
.crane::after{
  content:"";position:absolute;top:0;right:-3px;width:3px;height:60px;background:var(--steel);
  animation:hookMove 7s ease-in-out infinite;
}
@keyframes craneSwing{0%,100%{transform:rotate(0deg);}50%{transform:rotate(-6deg);}}
@keyframes hookMove{0%,100%{height:60px;}50%{height:100px;}}

.badge-float{
  position:absolute;padding:10px 16px;border:1px solid var(--border);background:rgba(31,35,41,.9);
  backdrop-filter:blur(6px);font-family:var(--mono);font-size:.72rem;color:var(--yellow);
  animation:floatY 5s ease-in-out infinite;
}
.badge-float.b1{top:6%;left:0;animation-delay:.2s;}
.badge-float.b2{bottom:14%;left:6%;animation-delay:1.1s;}
@keyframes floatY{0%,100%{transform:translateY(0);}50%{transform:translateY(-10px);}}

.scroll-cue{
  position:absolute;left:32px;bottom:34px;display:flex;align-items:center;gap:12px;
  font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;color:var(--text-dim);
  text-transform:uppercase;z-index:2;
}
.scroll-cue .bar{width:1px;height:34px;background:var(--text-dim);position:relative;overflow:hidden;}
.scroll-cue .bar::after{content:"";position:absolute;top:0;left:0;width:100%;height:40%;background:var(--orange);animation:scrollDown 1.8s ease-in-out infinite;}
@keyframes scrollDown{0%{transform:translateY(-100%);}100%{transform:translateY(250%);}}

@media (max-width:960px){
  .hero-content{grid-template-columns:1fr;}
  .rig{height:340px;order:-1;}
}

/* ===== SECTION 通用 ===== */
section{padding:120px 0;position:relative;}
.page-hero{padding:170px 0 70px;}
.sec-head{max-width:640px;margin-bottom:64px;}
.sec-head h2{font-size:clamp(2rem,3.6vw,2.9rem);line-height:1.12;margin-top:14px;}
.sec-head p{color:var(--text-dim);margin-top:18px;font-size:1.02rem;}

/* ===== VISION ===== */
#vision{background:var(--bg-soft);}
.principle-list{display:flex;flex-direction:column;}
.principle{
  display:grid;grid-template-columns:110px 1fr 1fr;gap:32px;
  padding:32px 0;border-top:1px solid var(--border);
  transition:background .3s;
}
.principle:last-child{border-bottom:1px solid var(--border);}
.principle:hover{background:rgba(255,106,31,.05);}
.principle .num{font-family:var(--mono);color:var(--orange);font-size:1.1rem;}
.principle h3{font-size:1.15rem;text-transform:none;letter-spacing:0;}
.principle p{color:var(--text-dim);font-size:.94rem;}
.principle .example{
  font-family:var(--mono);font-size:.8rem;color:var(--yellow);
  border-left:2px solid var(--orange-dim);padding-left:14px;align-self:center;
}
@media (max-width:820px){
  .principle{grid-template-columns:1fr;gap:10px;}
}

/* ===== LINEUP 行业矩阵 ===== */
#lineup .sec-head{max-width:720px;}
.industry-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:1px;
  background:var(--border);border:1px solid var(--border);
}
.industry-cell{
  background:var(--bg);padding:28px 20px;min-height:150px;
  display:flex;flex-direction:column;justify-content:space-between;
  position:relative;overflow:hidden;transition:background .3s;
}
.industry-cell:hover{background:var(--panel);}
.industry-cell .tag{
  font-family:var(--mono);font-size:.65rem;letter-spacing:.08em;color:var(--text-dim);text-transform:uppercase;
}
.industry-cell h4{font-size:1.02rem;text-transform:none;letter-spacing:0;margin-top:14px;}
.industry-cell .status{
  position:absolute;top:16px;right:16px;width:8px;height:8px;border-radius:50%;
  background:var(--steel);
}
.industry-cell.live .status{background:var(--orange);box-shadow:0 0 0 4px rgba(255,106,31,.18);}
.industry-cell.live{background:linear-gradient(160deg, rgba(255,106,31,.1), transparent);}
.industry-cell.live .tag{color:var(--orange);}
@media (max-width:1024px){ .industry-grid{grid-template-columns:repeat(3,1fr);} }
@media (max-width:640px){ .industry-grid{grid-template-columns:repeat(2,1fr);} }

/* ===== BUILDWORKS ===== */
#buildworks{
  background:
    linear-gradient(180deg, var(--bg) 0%, var(--blueprint) 100%);
}
.bw-head{display:grid;grid-template-columns:1.3fr 1fr;gap:60px;align-items:end;margin-bottom:70px;}
.bw-head h2{font-size:clamp(2.2rem,4vw,3.4rem);}
.bw-head .bw-desc{color:#c3d3e5;font-size:1.02rem;}
.bw-tagline{
  font-family:var(--mono);color:var(--yellow);font-size:.95rem;letter-spacing:.03em;
  border-left:3px solid var(--orange);padding-left:16px;margin-top:20px;
}

.loop-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:rgba(255,255,255,.08);margin-bottom:80px;
}
.loop-step{
  background:var(--blueprint-soft);padding:26px 22px;position:relative;
}
.loop-step .n{font-family:var(--mono);color:var(--orange);font-size:.75rem;}
.loop-step h4{font-size:1rem;text-transform:none;margin:10px 0 6px;color:#fff;}
.loop-step p{font-size:.85rem;color:#a9bacb;}
.loop-step::after{
  content:"→";position:absolute;right:-2px;top:50%;transform:translateY(-50%);
  color:var(--orange);font-size:1.1rem;z-index:2;
}
.loop-step:last-child::after{content:"↻";}
@media (max-width:820px){ .loop-strip{grid-template-columns:1fr 1fr;} .loop-step::after{display:none;} }

/* 角色卡 */
.cast-title{margin-bottom:30px;}
.cast-title span{font-family:var(--mono);font-size:.72rem;color:var(--yellow);letter-spacing:.1em;text-transform:uppercase;}
.cast-title h3{font-size:1.5rem;margin-top:8px;color:#fff;}
.cast-scroll{
  display:flex;gap:20px;overflow-x:auto;padding-bottom:20px;scroll-snap-type:x mandatory;
}
.cast-scroll::-webkit-scrollbar{height:6px;}
.cast-scroll::-webkit-scrollbar-thumb{background:var(--orange-dim);}
.cast-card{
  flex:0 0 240px;scroll-snap-align:start;
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.1);
  padding:22px;transition:transform .3s, border-color .3s;
}
.cast-card:hover{transform:translateY(-6px);border-color:var(--orange);}
.cast-card .role-tag{font-family:var(--mono);font-size:.62rem;color:var(--orange);letter-spacing:.08em;text-transform:uppercase;}
.cast-card h4{color:#fff;font-size:1.05rem;text-transform:none;margin:10px 0 4px;}
.cast-card .job{font-size:.78rem;color:#8ba0b6;margin-bottom:12px;}
.cast-card .quote{font-size:.83rem;color:#c3d3e5;font-style:italic;border-top:1px solid rgba(255,255,255,.08);padding-top:12px;}

/* 工地进度可视化 */
.site-viz{
  margin-top:90px;background:rgba(0,0,0,.25);border:1px solid rgba(255,255,255,.08);
  padding:40px;
}
.site-viz-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:28px;flex-wrap:wrap;gap:10px;}
.site-viz-head h3{color:#fff;font-size:1.3rem;}
.site-viz-head .pct{font-family:var(--mono);color:var(--orange);font-size:1.3rem;}
.progress-track{height:10px;background:rgba(255,255,255,.08);position:relative;margin-bottom:24px;}
.progress-fill{
  position:absolute;left:0;top:0;height:100%;width:68%;
  background:repeating-linear-gradient(135deg, var(--orange) 0 10px, var(--yellow) 10px 20px);
  animation:barPulse 2.4s ease-in-out infinite;
}
@keyframes barPulse{0%,100%{filter:brightness(1);}50%{filter:brightness(1.15);}}
.progress-labels{display:flex;justify-content:space-between;font-family:var(--mono);font-size:.68rem;color:#7c8ea3;}
.progress-labels b{color:var(--yellow);}

/* ===== ENGINE ===== */
.engine-layers{display:flex;flex-direction:column;gap:1px;background:var(--border);border:1px solid var(--border);margin-top:20px;}
.engine-layer{
  display:grid;grid-template-columns:220px 1fr;background:var(--bg);
}
.engine-layer .label{
  padding:24px;background:var(--panel);display:flex;flex-direction:column;justify-content:center;
  border-right:1px solid var(--border);
}
.engine-layer .label .idx{font-family:var(--mono);font-size:.65rem;color:var(--orange);letter-spacing:.1em;}
.engine-layer .label h4{font-size:1rem;text-transform:none;color:#fff;margin-top:6px;}
.engine-layer .modules{display:flex;flex-wrap:wrap;gap:10px;padding:24px;align-content:center;}
.mod-chip{
  font-family:var(--mono);font-size:.74rem;color:var(--text-dim);
  border:1px solid var(--border);padding:7px 13px;transition:all .2s;
}
.mod-chip:hover{border-color:var(--orange);color:var(--orange);}
@media (max-width:720px){ .engine-layer{grid-template-columns:1fr;} .engine-layer .label{border-right:none;border-bottom:1px solid var(--border);} }

.stack-note{
  margin-top:36px;padding:22px 26px;background:rgba(255,194,60,.06);border-left:3px solid var(--yellow);
  font-family:var(--mono);font-size:.86rem;color:var(--paper);
}

/* ===== ROADMAP ===== */
#roadmap{background:var(--bg-soft);}
.roadmap-rail{position:relative;margin-top:20px;}
.roadmap-rail::before{
  content:"";position:absolute;left:0;right:0;top:14px;height:2px;
  background:repeating-linear-gradient(90deg, var(--orange) 0 10px, transparent 10px 20px);
}
.roadmap-track{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative;}
.rm-stop{padding-top:44px;position:relative;}
.rm-stop::before{
  content:"";position:absolute;top:6px;left:0;width:16px;height:16px;background:var(--bg-soft);
  border:2px solid var(--orange);transform:rotate(45deg);
}
.rm-stop .phase{font-family:var(--mono);font-size:.7rem;color:var(--orange);letter-spacing:.1em;text-transform:uppercase;}
.rm-stop h4{font-size:1.15rem;margin:10px 0 12px;}
.rm-stop ul{list-style:none;display:flex;flex-direction:column;gap:8px;}
.rm-stop li{font-size:.88rem;color:var(--text-dim);padding-left:16px;position:relative;}
.rm-stop li::before{content:"—";position:absolute;left:0;color:var(--steel);}
@media (max-width:820px){ .roadmap-track{grid-template-columns:1fr;} .roadmap-rail::before{display:none;} }

/* ===== ABOUT 关于我们 ===== */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border);margin-top:10px;}
.value-card{background:var(--bg);padding:32px;transition:background .3s, transform .3s;display:block;}
.value-card:hover{background:var(--panel);transform:translateY(-4px);}
.value-card .idx{font-family:var(--mono);color:var(--orange);font-size:.75rem;}
.value-card h4{font-size:1.05rem;margin:12px 0 8px;text-transform:none;color:#fff;}
.value-card p{color:var(--text-dim);font-size:.9rem;}
@media (max-width:820px){ .value-grid{grid-template-columns:1fr;} }

.about-split{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:80px;align-items:start;}
.about-split h3{font-size:1.3rem;margin-bottom:16px;color:#fff;}
.about-split p{color:var(--text-dim);margin-bottom:14px;}
@media (max-width:820px){ .about-split{grid-template-columns:1fr;} }

/* ===== CONTACT 联系我们 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:20px;align-items:start;}
.contact-form{display:flex;flex-direction:column;gap:18px;}
.field label{
  display:block;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--text-dim);margin-bottom:8px;
}
.field input,.field textarea{
  width:100%;background:var(--panel);border:1px solid var(--border);color:var(--text);
  padding:13px 16px;font-family:var(--body);font-size:.95rem;resize:vertical;
  transition:border-color .2s;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--orange);}
.field textarea{min-height:120px;}
.form-note{font-family:var(--mono);font-size:.72rem;color:var(--steel);}

.info-card{
  border:1px solid var(--border);padding:26px;margin-bottom:16px;transition:border-color .2s;
}
.info-card:hover{border-color:var(--orange-dim);}
.info-card .idx{font-family:var(--mono);color:var(--orange);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;}
.info-card h4{font-size:1rem;margin:10px 0 6px;text-transform:none;color:#fff;}
.info-card p,.info-card a{color:var(--text-dim);font-size:.9rem;}
.info-card a:hover{color:var(--orange);}
@media (max-width:820px){ .contact-grid{grid-template-columns:1fr;} }

/* ===== CTA ===== */
#cta{
  text-align:center;padding:150px 0;position:relative;
  background:radial-gradient(ellipse 70% 60% at 50% 0%, rgba(255,106,31,.16), transparent 65%);
}
#cta h2{font-size:clamp(2.4rem,5vw,4rem);margin:20px 0 22px;}
#cta p{color:var(--text-dim);max-width:520px;margin:0 auto 40px;}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;}
.cta-note{margin-top:26px;font-family:var(--mono);font-size:.75rem;color:var(--steel);}

/* ===== FOOTER ===== */
footer{border-top:1px solid var(--border);padding:50px 0 34px;}
.foot-top{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:30px;margin-bottom:36px;}
.foot-links{display:flex;gap:40px;flex-wrap:wrap;}
.foot-col h5{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;color:var(--text-dim);text-transform:uppercase;margin-bottom:14px;}
.foot-col a{display:block;font-size:.88rem;color:var(--text-dim);margin-bottom:10px;transition:color .2s;}
.foot-col a:hover{color:var(--orange);}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  padding-top:24px;border-top:1px solid var(--border);
  font-family:var(--mono);font-size:.72rem;color:var(--steel);
}