/* ============ 显影 · 二元体系 ============ */
:root{
  --ink:#000000;
  --paper:#ffffff;
  --ink-55:rgba(0,0,0,.55);
  --ink-30:rgba(0,0,0,.30);
  --line-l:rgba(0,0,0,.16);
  --paper-55:rgba(255,255,255,.55);
  --paper-30:rgba(255,255,255,.30);
  --line-d:rgba(255,255,255,.18);
  --f-disp:'Michroma','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --f-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --f-serif:'Noto Serif SC','Songti SC','STSong','SimSun',serif;
  --f-mono:'IBM Plex Mono','SF Mono','Noto Sans SC','PingFang SC',monospace;
  --ease-out:cubic-bezier(.16,1,.3,1);
}
*{margin:0;padding:0;box-sizing:border-box;border-radius:0!important}
html{scroll-behavior:smooth}
body{
  font-family:var(--f-sans);
  background:var(--ink);
  color:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--paper);color:var(--ink)}
.light ::selection{background:var(--ink);color:var(--paper)}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}

/* ---- 通用元素 ---- */
.mono{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;font-weight:400}
.mono-cn{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.35em;font-weight:400}
.tbd{border-bottom:1px dashed currentColor;padding-bottom:1px;cursor:help}
.wrap{max-width:1560px;margin:0 auto;padding:0 clamp(20px,4vw,72px)}
section{position:relative}
.light{background:var(--paper);color:var(--ink)}
.dark{background:var(--ink);color:var(--paper)}

/* 区块头 */
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:24px;
  padding-top:clamp(48px,7vw,104px);margin-bottom:clamp(32px,4.5vw,72px)}
.sec-head .no{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.3em}
.sec-head h2{font-weight:900;font-size:clamp(1.6rem,3.4vw,2.75rem);letter-spacing:.02em}
.sec-head .en{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.3em;opacity:.45}
.hr{border:0;border-top:1px solid var(--line-d)}
.light .hr{border-color:var(--line-l)}

/* 显影揭示动画 */
.wipe{opacity:0;transform:translateX(-26px);transition:opacity 1s var(--ease-out),transform 1s var(--ease-out)}
.wipe.on{opacity:1;transform:none}
.fadeup{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease-out),transform .9s var(--ease-out)}
.fadeup.on{opacity:1;transform:none}

/* ---- 固定头 ---- */
header{
  position:fixed;inset:0 0 auto 0;z-index:50;
  mix-blend-mode:difference;color:#fff;
  display:flex;justify-content:space-between;align-items:center;
  padding:20px clamp(20px,4vw,72px);
}
header .logo{font-family:var(--f-mono);font-size:.78rem;letter-spacing:.3em}
header .logo b{font-weight:500}
header nav{display:flex;gap:clamp(14px,2.4vw,36px)}
header nav a{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.24em;position:relative;padding:4px 0}
header nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:#fff;transition:width .45s var(--ease-out)}
header nav a:hover::after{width:100%}
@media (max-width:720px){header nav{display:none}}

/* ---- S1 HERO ---- */
.hero{min-height:100vh;display:grid;grid-template-columns:1.08fr .92fr;align-items:stretch}
.hero-l{display:flex;flex-direction:column;justify-content:center;padding:120px clamp(20px,4vw,72px) 64px}
.eyebrow{display:flex;align-items:center;gap:10px;color:var(--paper-55);margin-bottom:clamp(24px,3vw,44px)}
.cursor{display:inline-block;width:8px;height:14px;background:var(--paper);animation:blink 1.1s steps(1,end) infinite}
@keyframes blink{50%{opacity:0}}
h1{font-weight:900;font-size:clamp(2.6rem,6.4vw,5.6rem);line-height:1.14;letter-spacing:.01em}
h1 .rl{display:block;overflow:hidden}
h1 .rl-in{display:block;transform:translateY(108%);transition:transform 1.15s var(--ease-out)}
body.ready h1 .rl-in{transform:none}
h1 .rl:nth-child(2) .rl-in{transition-delay:.14s}
h1 .rl:nth-child(3) .rl-in{transition-delay:.28s}
h1 .ai{font-family:var(--f-disp);font-weight:400;letter-spacing:.04em}
.hero-sub{margin-top:clamp(20px,2.6vw,36px);font-family:var(--f-serif);font-weight:300;
  font-size:clamp(1rem,1.5vw,1.3rem);line-height:2;color:var(--paper-55);max-width:34em}
.hero-sub b{color:var(--paper);font-weight:600}
.hero-cta{margin-top:clamp(28px,3.4vw,52px);display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:12px;border:1px solid var(--paper);
  padding:15px 30px;font-family:var(--f-mono);font-size:.7rem;letter-spacing:.26em;
  transition:background .35s var(--ease-out),color .35s var(--ease-out)}
.btn:hover{background:var(--paper);color:var(--ink)}
.btn.solid{background:var(--paper);color:var(--ink)}
.btn.solid:hover{background:transparent;color:var(--paper)}
.light .btn{border-color:var(--ink)}
.light .btn:hover{background:var(--ink);color:var(--paper)}
.light .btn.solid{background:var(--ink);color:var(--paper)}
.light .btn.solid:hover{background:transparent;color:var(--ink)}
.link-plain{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.2em;color:var(--paper-55);
  border-bottom:1px solid var(--line-d);padding-bottom:4px;transition:color .3s}
.link-plain:hover{color:var(--paper)}
.hero-scan{margin-top:auto;padding-top:clamp(28px,4vw,56px);color:var(--paper-30)}
/* 右侧：显影装置 */
.hero-r{position:relative;border-left:1px solid var(--line-d);display:flex;align-items:center;justify-content:center;padding:clamp(20px,4vw,72px)}
.scope{position:relative;width:100%;max-width:560px;aspect-ratio:1/1;border:1px solid var(--line-d);overflow:hidden}
.scope canvas{position:absolute;inset:0;width:100%;height:100%}
.sweep{position:absolute;left:0;top:0;width:100%;height:100%;pointer-events:none;
  background:conic-gradient(from 0deg at 0% 0%,rgba(255,255,255,.16),transparent 72deg);
  transform-origin:0 0;animation:sweep 9s linear infinite}
@keyframes sweep{to{transform:rotate(360deg)}}
.scope .tag{position:absolute;font-family:var(--f-mono);font-size:.6rem;letter-spacing:.22em;color:var(--paper-55)}
.scope .tag.tl{top:14px;left:16px}
.scope .tag.br{bottom:14px;right:16px;color:var(--paper-30)}
.scope .tag.tr{top:14px;right:16px;color:var(--paper-30)}
.covergrid{position:absolute;inset:0;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr)}
.covergrid i{background:var(--ink);transform:scale(1.02);transition:transform .9s var(--ease-out)}
body.ready .covergrid i{transform:scale(0)}
.covergrid i:nth-child(1){transition-delay:.55s}.covergrid i:nth-child(2){transition-delay:.68s}
.covergrid i:nth-child(3){transition-delay:.62s}.covergrid i:nth-child(4){transition-delay:.8s}
.covergrid i:nth-child(5){transition-delay:.95s}.covergrid i:nth-child(6){transition-delay:.75s}
.covergrid i:nth-child(7){transition-delay:1.05s}.covergrid i:nth-child(8){transition-delay:.88s}
.covergrid i:nth-child(9){transition-delay:1.15s}
@media (max-width:980px){
  .hero{grid-template-columns:1fr}
  .hero-r{border-left:0;border-top:1px solid var(--line-d);padding-top:40px;padding-bottom:56px}
  .scope{max-width:440px}
}

/* ---- S2 十秒 ---- */
.ten .sentence{font-family:var(--f-serif);font-weight:300;font-size:clamp(1.35rem,2.6vw,2.2rem);
  line-height:1.9;max-width:22em;margin-bottom:clamp(40px,5vw,80px)}
.ten .sentence b{font-weight:600}
.stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line-l)}
.stat{padding:clamp(24px,3vw,44px) clamp(16px,2vw,36px) clamp(64px,7vw,120px);border-left:1px solid var(--line-l)}
.stat:first-child{border-left:0;padding-left:0}
.stat .n{font-weight:900;font-size:clamp(2.2rem,4.6vw,4rem);line-height:1;letter-spacing:-.01em;margin-bottom:14px}
.stat .n small{font-size:.42em;font-weight:700;letter-spacing:.06em}
.stat .d{color:var(--ink-55);font-size:.86rem;line-height:1.8}
@media (max-width:820px){.stats{grid-template-columns:1fr}.stat{border-left:0;border-top:1px solid var(--line-l);padding-left:0;padding-bottom:36px}.stat:first-child{border-top:0}}

/* ---- S3 判断 ---- */
.arts{border-top:1px solid var(--line-d)}
.art{display:grid;grid-template-columns:70px 1fr auto 40px;align-items:center;gap:clamp(14px,2vw,32px);
  padding:clamp(22px,2.8vw,36px) clamp(4px,1vw,16px);border-bottom:1px solid var(--line-d);
  transition:background .35s var(--ease-out),color .35s var(--ease-out);cursor:pointer}
.art .idx{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.2em;color:var(--paper-30);transition:color .35s}
.art h3{font-weight:700;font-size:clamp(1.05rem,1.9vw,1.5rem);line-height:1.6}
.art .meta{font-family:var(--f-mono);font-size:.62rem;letter-spacing:.2em;color:var(--paper-30);text-align:right;transition:color .35s}
.art .arr{font-size:1.2rem;transform:translateX(-6px);opacity:.3;transition:all .35s var(--ease-out)}
.art:hover{background:var(--paper);color:var(--ink)}
.art:hover .idx,.art:hover .meta{color:var(--ink-55)}
.art:hover .arr{transform:none;opacity:1}
.arts-note{padding-top:20px;color:var(--paper-30)}
@media (max-width:720px){.art{grid-template-columns:44px 1fr 24px}.art .meta{display:none}}

/* ---- S4 案例 ---- */
.case-lead{font-family:var(--f-serif);font-weight:300;font-size:clamp(1.2rem,2.2vw,1.8rem);
  line-height:2;color:var(--paper-55);max-width:26em;margin-bottom:clamp(36px,4.5vw,64px)}
.case-lead b{color:var(--paper);font-weight:600}
.case{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,3.5vw,64px);margin-bottom:clamp(40px,5vw,72px)}
.frame{border:1px solid var(--line-d);position:relative;overflow:hidden}
.frame img{width:100%;height:100%;object-fit:cover;
  filter:grayscale(1) contrast(1.05);transition:filter .8s var(--ease-out),transform 1.2s var(--ease-out)}
.frame:hover img{filter:grayscale(0);transform:scale(1.015)}
.frame .cap{position:absolute;left:0;right:0;bottom:0;display:flex;justify-content:space-between;
  padding:12px 16px;background:rgba(0,0,0,.72);backdrop-filter:blur(4px);
  font-family:var(--f-mono);font-size:.6rem;letter-spacing:.2em;color:var(--paper-55)}
.case-info{display:flex;flex-direction:column}
.case-info .krow{display:grid;grid-template-columns:110px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line-d)}
.case-info .krow:first-child{border-top:1px solid var(--line-d)}
.case-info .k{font-family:var(--f-mono);font-size:.64rem;letter-spacing:.24em;color:var(--paper-30);padding-top:4px}
.case-info .v{font-size:.95rem;line-height:1.9;color:var(--paper-55)}
.case-info .v b{color:var(--paper);font-weight:700}
.case-tag{margin-bottom:22px;color:var(--paper-30)}
.case-more{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2vw,32px);padding-bottom:clamp(64px,8vw,120px)}
.slot{border:1px dashed var(--paper-30);min-height:150px;display:flex;align-items:center;justify-content:center;
  font-family:var(--f-mono);font-size:.66rem;letter-spacing:.3em;color:var(--paper-30)}
@media (max-width:900px){.case{grid-template-columns:1fr}.case-more{grid-template-columns:1fr}}

/* ---- S5 诊断 ---- */
.diag{display:grid;grid-template-columns:1fr 340px;gap:clamp(28px,4vw,72px);align-items:start}
.diag-lead{font-family:var(--f-serif);font-weight:300;font-size:clamp(1.15rem,2vw,1.6rem);line-height:2;color:var(--ink-55);max-width:30em;margin-bottom:clamp(32px,4vw,56px)}
.diag-lead b{color:var(--ink);font-weight:600}
.diag-cols{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line-l)}
.dcol{padding:clamp(20px,2.6vw,36px) clamp(14px,1.8vw,30px) clamp(28px,3vw,44px);border-left:1px solid var(--line-l)}
.dcol:first-child{border-left:0;padding-left:0}
.dcol .code{font-family:var(--f-mono);font-size:.64rem;letter-spacing:.26em;color:var(--ink-30);margin-bottom:16px}
.dcol h3{font-weight:900;font-size:clamp(1.15rem,1.8vw,1.5rem);margin-bottom:18px}
.dcol ul{list-style:none}
.dcol li{font-size:.88rem;line-height:2.1;color:var(--ink-55);padding-left:16px;position:relative}
.dcol li::before{content:"";position:absolute;left:0;top:.95em;width:8px;height:1px;background:var(--ink)}
.diag-out{margin-top:clamp(32px,4vw,56px);padding-top:clamp(24px,3vw,40px);border-top:1px solid var(--line-l);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding-bottom:clamp(64px,8vw,120px)}
.diag-out p{font-size:1rem;line-height:1.9;color:var(--ink-55)}
.diag-out p b{color:var(--ink);font-weight:700}
/* 雷达装置（白版） */
.radar{position:relative;width:100%;aspect-ratio:1/1;border:1px solid var(--line-l);overflow:hidden}
.radar::before,.radar::after{content:"";position:absolute;background:var(--line-l)}
.radar::before{left:50%;top:0;bottom:0;width:1px}
.radar::after{top:50%;left:0;right:0;height:1px}
.radar .sw{position:absolute;left:50%;top:50%;width:142%;height:142%;transform:translate(-50%,-50%);
  background:conic-gradient(from 0deg,rgba(0,0,0,.14),transparent 70deg);
  animation:sweep 7s linear infinite}
.radar .dot{position:absolute;left:50%;top:50%;width:7px;height:7px;background:var(--ink);transform:translate(-50%,-50%)}
.radar .tag{position:absolute;font-family:var(--f-mono);font-size:.58rem;letter-spacing:.2em;color:var(--ink-30)}
@media (max-width:980px){.diag{grid-template-columns:1fr}.radar{max-width:340px}}
@media (max-width:820px){.diag-cols{grid-template-columns:1fr}.dcol{border-left:0;border-top:1px solid var(--line-l);padding-left:0}.dcol:first-child{border-top:0}}

/* ---- S6 关于 ---- */
.about{display:grid;grid-template-columns:340px 1fr;gap:clamp(28px,4vw,80px);padding-bottom:clamp(64px,8vw,120px)}
.portrait{border:1px dashed var(--ink-30);aspect-ratio:3/4;display:flex;align-items:center;justify-content:center;
  font-family:var(--f-mono);font-size:.64rem;letter-spacing:.3em;color:var(--ink-30);position:relative;overflow:hidden}
.portrait img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:grayscale(1)}
.about h3{font-weight:900;font-size:clamp(1.9rem,3.6vw,3rem);margin-bottom:10px}
.about .role{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.26em;color:var(--ink-55);margin-bottom:clamp(24px,3vw,40px)}
.tl{border-top:1px solid var(--line-l);margin-bottom:clamp(24px,3vw,40px)}
.tl .row{display:grid;grid-template-columns:170px 1fr;gap:20px;padding:16px 0;border-bottom:1px solid var(--line-l)}
.tl .y{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.16em;color:var(--ink-30);padding-top:3px}
.tl .w{font-size:.95rem;line-height:1.8}
.tl .w b{font-weight:700}
.about .co{font-size:.95rem;line-height:2.1;color:var(--ink-55);max-width:44em;margin-bottom:clamp(20px,2.6vw,36px)}
.about .co b{color:var(--ink);font-weight:700}
.salon{border:1px solid var(--ink);display:grid;grid-template-columns:1.05fr .95fr}
.salon .pic{position:relative;overflow:hidden;border-right:1px solid var(--ink);min-height:260px}
.salon .pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:grayscale(1);transition:filter .8s var(--ease-out)}
.salon:hover .pic img{filter:grayscale(0)}
.salon .txt{padding:clamp(24px,3vw,44px);display:flex;flex-direction:column;justify-content:center;gap:14px}
.salon .t{font-weight:900;font-size:clamp(1.15rem,1.8vw,1.5rem);letter-spacing:.04em}
.salon .s{font-size:.9rem;line-height:1.9;color:var(--ink-55)}
.salon .m{font-family:var(--f-mono);font-size:.62rem;letter-spacing:.22em;color:var(--ink-30)}
@media (max-width:820px){.salon{grid-template-columns:1fr}.salon .pic{border-right:0;border-bottom:1px solid var(--ink);min-height:220px}}
@media (max-width:900px){.about{grid-template-columns:1fr}.portrait{max-width:320px}}
@media (max-width:640px){.tl .row{grid-template-columns:1fr;gap:4px}}


.contact-grid{display:grid;grid-template-columns:260px 1fr;gap:clamp(28px,4vw,80px);align-items:start}
.qr-slot{width:100%;aspect-ratio:1/1;border:1px dashed var(--paper-30);display:flex;align-items:center;justify-content:center;
  text-align:center;font-family:var(--f-mono);font-size:.66rem;letter-spacing:.3em;color:var(--paper-30);line-height:2.2}
.c-rows .crow{display:grid;grid-template-columns:110px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid var(--line-d)}
.c-rows .crow:first-child{border-top:1px solid var(--line-d)}
.crow .k{font-family:var(--f-mono);font-size:.64rem;letter-spacing:.24em;color:var(--paper-30);padding-top:4px}
.crow .v{font-size:.98rem;line-height:1.9;color:var(--paper-55)}
.crow .v b{color:var(--paper);font-weight:700}
footer{margin-top:clamp(56px,7vw,100px);border-top:1px solid var(--line-d);padding:28px 0 40px;
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-family:var(--f-mono);font-size:.62rem;letter-spacing:.22em;color:var(--paper-30)}
@media (max-width:820px){.contact-grid{grid-template-columns:1fr}.qr-slot{max-width:240px}}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .wipe{opacity:1;transform:none}.fadeup{opacity:1;transform:none}
  h1 .rl-in{transform:none}.covergrid{display:none}
}