/* MS07 LIVSPACE — 建筑室内，玻璃态 + 分层视差 */
:root{
  --paper:#e8e4db;
  --paper-2:#ded9ce;
  --paper-3:#d2ccbe;
  --ink:#211f1b;
  --ink-2:#3b3831;
  --muted:#716b60;
  --muted-2:#9a9386;
  --stone:#8a7b62;
  --stone-2:#b3a48a;
  --line:rgba(33,31,27,.14);
  --glass:rgba(255,255,255,.44);
  --glass-2:rgba(255,255,255,.62);
  --pad:clamp(18px,4.4vw,64px);
  --max:1380px;
  --serif:"Songti SC","SimSun",Georgia,"Times New Roman",serif;
  --sans:"Segoe UI",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);
  font-size:16px;line-height:1.68;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.wrap{position:relative;z-index:2}

/* ---------- 顶栏 ---------- */
.head{position:fixed;top:0;left:0;right:0;z-index:60;display:flex;align-items:center;
  justify-content:space-between;gap:22px;padding:18px var(--pad);
  transition:background .4s,box-shadow .4s,padding .4s,backdrop-filter .4s}
.head.solid{background:rgba(232,228,219,.72);backdrop-filter:blur(18px) saturate(140%);
  box-shadow:0 1px 0 var(--line);padding-top:12px;padding-bottom:12px}
.brand{font-family:var(--serif);font-size:16px;letter-spacing:.38em;text-transform:uppercase}
.head nav ul{display:flex;gap:clamp(14px,2.4vw,34px);list-style:none;margin:0;padding:0}
.head nav a{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-2);
  padding-bottom:4px;position:relative}
.head nav a::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--stone);transition:width .34s cubic-bezier(.2,.8,.2,1)}
.head nav a:hover::after,.head nav a.on::after{width:100%}
.head .cta{display:inline-flex;align-items:center;gap:8px;font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;border:1px solid var(--line);border-radius:999px;padding:9px 16px;
  background:var(--glass);backdrop-filter:blur(10px);
  transition:background .25s,border-color .25s,transform .2s}
.head .cta:hover{background:var(--glass-2);border-color:rgba(33,31,27,.3);transform:translateY(-1px)}

/* ---------- 首屏 ---------- */
.hero{position:relative;min-height:100svh;display:grid;
  grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);align-items:center;
  gap:clamp(20px,3.4vw,54px);padding:clamp(100px,13vh,140px) var(--pad) clamp(36px,5vh,60px)}
/* 室内影像：混凝土 + 落地窗光 + 地面反射 */
.interior{position:relative;height:min(74vh,660px);border-radius:2px;overflow:hidden;
  background:linear-gradient(184deg,#cfc8b8 0%,#c3bba9 42%,#a89f8d 100%);
  box-shadow:0 30px 70px -34px rgba(50,44,34,.5)}
.interior .wall{position:absolute;inset:0;
  background:
    radial-gradient(70% 48% at 18% 12%,rgba(255,255,255,.55),transparent 62%),
    repeating-linear-gradient(91deg,rgba(255,255,255,.05) 0 1px,transparent 1px 8px),
    linear-gradient(176deg,#d6cfbf,#b8b09d 62%,#9d9482)}
.interior .win{position:absolute;left:8%;top:6%;width:52%;height:62%;
  background:linear-gradient(168deg,rgba(255,255,255,.72),rgba(236,232,222,.3) 58%,transparent);
  border:1px solid rgba(255,255,255,.5);
  box-shadow:0 0 60px rgba(255,255,255,.4) inset}
.interior .win::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent 49.4%,rgba(90,84,72,.28) 49.4% 50.2%,transparent 50.2%),
    linear-gradient(180deg,transparent 63%,rgba(90,84,72,.28) 63% 64%,transparent 64%)}
/* 斜射光 */
.interior .ray{position:absolute;left:12%;top:2%;width:66%;height:86%;
  background:linear-gradient(118deg,rgba(255,253,244,.5),rgba(255,253,244,.06) 52%,transparent 72%);
  filter:blur(2px);transform-origin:top left;animation:ray 18s ease-in-out infinite alternate}
@keyframes ray{from{opacity:.55;transform:rotate(-1.2deg)}to{opacity:.9;transform:rotate(1.6deg)}}
/* 地面 */
.interior .floor{position:absolute;left:0;right:0;bottom:0;height:34%;
  background:linear-gradient(180deg,rgba(150,142,126,.9),rgba(120,112,98,.96));
  border-top:1px solid rgba(255,255,255,.3)}
.interior .floor::after{content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(92deg,rgba(255,255,255,.06) 0 1px,transparent 1px 34px),
    linear-gradient(180deg,rgba(255,255,255,.24),transparent 32%)}
/* 家具剪影：一张低矮长凳 */
.interior .bench{position:absolute;left:22%;bottom:31%;width:44%;height:5.5%;
  background:linear-gradient(180deg,#6f6353,#4b4337);
  border-radius:2px;box-shadow:0 14px 24px -8px rgba(40,34,26,.5)}
.interior .bench::after{content:"";position:absolute;left:8%;right:8%;top:100%;height:220%;
  background:linear-gradient(180deg,rgba(70,62,50,.55),transparent 72%);
  transform:scaleY(-1);opacity:.4;filter:blur(3px)}
.interior .cap{position:absolute;left:16px;bottom:14px;z-index:3;font-size:9px;
  letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.86)}
.interior .no{position:absolute;right:16px;top:14px;z-index:3;font-size:9px;letter-spacing:.2em;
  color:rgba(255,255,255,.8);font-variant-numeric:tabular-nums}

/* 玻璃文案卡 */
.glass{background:var(--glass);border:1px solid rgba(255,255,255,.6);border-radius:4px;
  backdrop-filter:blur(20px) saturate(150%);
  box-shadow:0 24px 60px -30px rgba(50,44,34,.42),inset 0 1px 0 rgba(255,255,255,.7)}
.hero-copy{padding:clamp(24px,3vw,38px);max-width:520px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:9px;letter-spacing:.26em;
  text-transform:uppercase;color:var(--muted)}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--stone);display:block}
.hero h1{margin:18px 0 0;font-family:var(--serif);font-weight:400;
  font-size:clamp(1.85rem,3.9vw,3.2rem);line-height:1.16;letter-spacing:-.012em}
.hero h1 em{font-style:italic;color:var(--stone)}
.hero .sub{margin:18px 0 0;font-size:13.5px;line-height:1.86;color:var(--ink-2);max-width:42ch}
.hero .acts{display:flex;gap:10px;margin-top:24px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;
  font:inherit;font-size:11px;letter-spacing:.16em;text-transform:uppercase;cursor:pointer;
  border:1px solid var(--line);background:rgba(255,255,255,.5);color:var(--ink);border-radius:2px;
  transition:background .25s,border-color .25s,transform .2s,box-shadow .25s}
.btn:hover{background:#fff;border-color:rgba(33,31,27,.34);transform:translateY(-1px);
  box-shadow:0 10px 24px -16px rgba(50,44,34,.6)}
.btn-dark{background:var(--ink);border-color:var(--ink);color:#f2efe7}
.btn-dark:hover{background:#332f28;border-color:#332f28;color:#fff}
.hero .meta{display:flex;gap:clamp(18px,2.6vw,32px);margin-top:26px;padding-top:18px;
  border-top:1px solid var(--line);flex-wrap:wrap}
.hero .meta div{font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.hero .meta b{display:block;font-family:var(--serif);font-size:17px;letter-spacing:.02em;
  color:var(--ink);text-transform:none;margin-top:4px;font-weight:400}

/* 右侧竖向进度 */
.rail{position:fixed;right:calc(var(--pad) * .5);top:50%;transform:translateY(-50%);z-index:40;
  display:flex;flex-direction:column;align-items:center;gap:10px}
.rail .ln{width:1px;height:110px;background:var(--line);position:relative}
.rail .ln i{position:absolute;left:-1px;top:0;width:3px;height:0;background:var(--stone);
  transition:height .12s linear}
.rail span{font-size:8.5px;letter-spacing:.2em;color:var(--muted-2);writing-mode:vertical-rl}

/* ---------- 区块 ---------- */
.sec{padding:clamp(62px,10vh,126px) 0;position:relative}
.inner{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.sec-top{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:clamp(26px,4vw,52px)}
.sec-top h2{margin:0;font-family:var(--serif);font-weight:400;
  font-size:clamp(1.45rem,3.1vw,2.3rem);letter-spacing:-.008em}
.sec-top .tag{font-size:9px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted)}

/* 项目卡 */
.projects{display:grid;grid-template-columns:1fr 1fr;gap:clamp(12px,2vw,26px)}
.pj{display:block;position:relative}
.pj .vis{position:relative;aspect-ratio:4/3;overflow:hidden;border-radius:2px;
  background:linear-gradient(170deg,#d3ccbc,#a9a08d)}
.pj .vis .lay{position:absolute;inset:0;transition:transform 1.1s cubic-bezier(.16,.84,.24,1)}
.pj:hover .vis .lay{transform:scale(1.05)}
.lay-a{background:
  radial-gradient(52% 40% at 26% 16%,rgba(255,255,255,.66),transparent 62%),
  repeating-linear-gradient(92deg,rgba(90,84,72,.07) 0 1px,transparent 1px 12px),
  linear-gradient(174deg,#d8d1c1,#b2a996 62%,#918876)}
.lay-b{background:
  radial-gradient(46% 36% at 68% 24%,rgba(255,255,255,.5),transparent 60%),
  repeating-linear-gradient(0deg,rgba(90,84,72,.06) 0 1px,transparent 1px 16px),
  linear-gradient(186deg,#c9c2b2,#a29a87 58%,#857c6b)}
.lay-c{background:
  radial-gradient(54% 42% at 40% 30%,rgba(255,250,238,.6),transparent 64%),
  linear-gradient(162deg,#dcd6c7,#b6ad9a 60%,#968d7b)}
.lay-d{background:
  radial-gradient(48% 38% at 62% 70%,rgba(255,255,255,.4),transparent 62%),
  linear-gradient(196deg,#c4bcaa,#9b9380 62%,#7d7464)}
.pj .info{display:flex;justify-content:space-between;align-items:baseline;gap:14px;
  padding:14px 2px 0}
.pj h3{margin:0;font-family:var(--serif);font-size:clamp(1rem,1.6vw,1.18rem);
  font-weight:400;letter-spacing:.01em}
.pj .info span{font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);
  white-space:nowrap}

/* 双栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,80px);align-items:center}
.prose p{margin:0 0 16px;font-size:14px;line-height:1.98;color:var(--ink-2);max-width:52ch}
.prose p:last-child{margin-bottom:0}
.pull{margin:26px 0;padding-left:20px;border-left:1px solid var(--stone);
  font-family:var(--serif);font-size:clamp(1.05rem,2vw,1.4rem);line-height:1.7;color:var(--ink)}

/* 步骤：像走一遍房子 */
.walk{display:grid;gap:0;border-top:1px solid var(--line)}
.wstep{display:grid;grid-template-columns:74px 1fr 1.4fr;gap:clamp(14px,3vw,40px);
  padding:clamp(20px,2.6vw,30px) 4px;border-bottom:1px solid var(--line);align-items:start;
  transition:background .25s,padding .25s}
.wstep:hover{background:rgba(255,255,255,.34);padding-left:14px}
.wstep .n{font-family:var(--serif);font-size:11px;letter-spacing:.2em;color:var(--stone)}
.wstep h3{margin:0;font-family:var(--serif);font-size:clamp(1rem,1.7vw,1.24rem);font-weight:400}
.wstep p{margin:0;font-size:13px;line-height:1.82;color:var(--muted)}

/* 数据 */
.facts{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);
  border-bottom:1px solid var(--line)}
.fact{padding:clamp(22px,3.2vw,36px) 18px;border-right:1px solid var(--line)}
.fact:last-child{border-right:0}
.fact b{display:block;font-family:var(--serif);font-size:clamp(1.7rem,3.6vw,2.8rem);
  font-weight:400;line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.fact b em{font-style:normal;font-size:.4em;letter-spacing:.1em;color:var(--stone);margin-left:3px}
.fact span{display:block;margin-top:9px;font-size:9px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--muted-2)}

/* 联系人条 */
.contact{border:1px solid var(--line);background:var(--glass);backdrop-filter:blur(16px);
  padding:clamp(26px,4vw,48px);display:flex;align-items:center;justify-content:space-between;
  gap:26px;flex-wrap:wrap}
.contact h3{margin:0;font-family:var(--serif);font-weight:400;
  font-size:clamp(1.2rem,2.4vw,1.75rem)}
.contact p{margin:8px 0 0;font-size:12.5px;color:var(--muted)}

/* 表单 */
.form{display:grid;gap:13px;max-width:480px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted-2)}
.field input,.field select,.field textarea{background:rgba(255,255,255,.56);
  border:1px solid var(--line);border-radius:2px;padding:12px 14px;color:var(--ink);
  font:inherit;font-size:14px;transition:border-color .2s,background .2s}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid transparent;
  outline-offset:2px;border-color:var(--stone);background:#fff}

/* FAQ */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{padding:17px 30px 17px 2px;cursor:pointer;font-size:13.5px;list-style:none;
  position:relative;transition:color .2s}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  color:var(--muted-2);font-size:15px}
.faq details[open] summary::after{content:"–";color:var(--stone)}
.faq summary:hover{color:#000}
.faq p{margin:0 0 17px;padding-right:30px;font-size:13px;line-height:1.85;color:var(--muted);max-width:70ch}

/* 团队 */
.team{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,2.4vw,30px)}
.mem .ph{position:relative;aspect-ratio:3/4;overflow:hidden;border-radius:2px;
  background:linear-gradient(172deg,#d5cebe,#a79e8b 62%,#8e8574)}
.mem .ph::after{content:"";position:absolute;left:50%;bottom:14%;transform:translateX(-50%);
  width:44%;height:52%;border-radius:46% 46% 42% 42%/48% 48% 54% 54%;
  background:linear-gradient(180deg,rgba(70,63,52,.34),rgba(70,63,52,.16));
  filter:blur(1px)}
.mem h3{margin:12px 0 0;font-size:13.5px;font-weight:500}
.mem p{margin:3px 0 0;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2)}

/* 页脚 */
.foot{border-top:1px solid var(--line);padding:clamp(38px,6vw,64px) var(--pad) 28px;
  background:linear-gradient(180deg,transparent,rgba(210,204,190,.42))}
.foot-in{max-width:var(--max);margin:0 auto;display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.foot h4{margin:0 0 11px;font-size:8.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted-2)}
.foot a{display:block;font-size:12.5px;color:var(--ink-2);margin-bottom:7px;transition:color .2s}
.foot a:hover{color:#000}
.foot .note{margin-top:12px;font-size:12px;line-height:1.85;color:var(--muted);max-width:32ch}
.foot small{display:block;max-width:var(--max);margin:30px auto 0;font-size:10.5px;color:var(--muted-2)}

/* 内页首屏 */
.phero{padding-top:clamp(118px,16vh,174px);padding-bottom:clamp(22px,3.4vw,40px)}
.phero h1{margin:16px 0 0;font-family:var(--serif);font-weight:400;
  font-size:clamp(2.1rem,5.4vw,4rem);line-height:1.08;letter-spacing:-.02em}
.phero p{margin:18px 0 0;max-width:56ch;font-size:14px;line-height:1.98;color:var(--ink-2)}
.filter{display:flex;gap:9px;flex-wrap:wrap;margin-top:clamp(22px,3vw,34px)}
.filter button{font:inherit;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  padding:9px 16px;border:1px solid var(--line);background:rgba(255,255,255,.4);
  color:var(--ink-2);cursor:pointer;border-radius:999px;
  transition:background .24s,border-color .24s,color .24s}
.filter button:hover{background:#fff;border-color:rgba(33,31,27,.3)}
.filter button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#f2efe7}

/* 入场 */
.rv{opacity:0;transform:translateY(22px);
  transition:opacity .95s cubic-bezier(.16,.84,.24,1),transform .95s cubic-bezier(.16,.84,.24,1)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}

:focus-visible{outline:2px solid var(--stone);outline-offset:3px}

@media (max-width:1080px){
  .hero{grid-template-columns:1fr;padding-top:clamp(94px,12vh,124px)}
  .interior{order:-1;height:min(48vh,420px)}
  .rail{display:none}
  .projects{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .facts{grid-template-columns:1fr 1fr}
  .fact:nth-child(2){border-right:0}
  .fact:nth-child(1),.fact:nth-child(2){border-bottom:1px solid var(--line)}
  .team{grid-template-columns:1fr 1fr}
  .foot-in{grid-template-columns:1fr 1fr}
  .wstep{grid-template-columns:56px 1fr;gap:12px}
  .wstep p{grid-column:2}
}
@media (max-width:820px){ .head nav{display:none} }
@media (max-width:560px){
  .facts,.team,.foot-in{grid-template-columns:1fr}
  .fact{border-right:0;border-bottom:1px solid var(--line)}
  .hero-copy{padding:22px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;
    transition-duration:.01ms !important;scroll-behavior:auto !important}
  .rv{opacity:1;transform:none}
  .interior .ray{animation:none}
}

/* 布局工具：内页局部改列，不写内联样式 */
.g1c{grid-template-columns:1fr}
.g2c{grid-template-columns:1fr 1fr}
.g3c{grid-template-columns:repeat(3,1fr)}
.sep-r{border-right:1px solid var(--line)}
.sep-t{border-top:1px solid var(--line)}
/* 内页局部覆盖 */
.facts.g1c{margin-top:24px}
/* 布局工具 End */