/* ═══════════ HERO ═══════════ */
.hero{
  min-height:100vh;
  padding:0 var(--pad-x) 0 calc(var(--rail-x) + 56px);
  display:grid;
  grid-template-columns:minmax(0,38%) minmax(0,62%);
  align-items:stretch;
  gap:0;
  overflow:hidden;
}

/* 左栏:Sac 顶部、其余沉底(撑满高度,不居中)*/
.hero__left{
  display:flex;flex-direction:column;justify-content:flex-start;
  padding:calc(var(--nav-h) + 7vh) 0 6vh;
  max-width:760px;
  position:relative;
  z-index:4;
}
.hero__lower{
  margin-top:clamp(34px,4.8vh,66px);
  margin-left:clamp(8px,1.2vw,22px);
}
.hero__wordmark{
  font-family:var(--serif);
  font-weight:500;
  font-size:clamp(190px,25vw,460px);
  line-height:.8;
  letter-spacing:-.02em;
  white-space:nowrap;
}
.hero__kicker{
  display:flex;align-items:center;gap:11px;
  font-size:clamp(16px,1.12vw,20px);letter-spacing:.05em;color:var(--accent);
  margin-bottom:28px;
}
.hero__kicker .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);flex:none;}
.hero__slogan{
  font-family:var(--sans-cjk);font-weight:300;
  font-size:clamp(23px,2vw,34px);line-height:1.6;
  color:var(--ink);
  margin-bottom:32px;
}
.hero__cta{
  display:flex;align-items:stretch;gap:24px;
  width:min(100%,390px);
  flex-wrap:nowrap;
}
.hero__cta .btn{
  flex:1 1 0;
  height:58px;
  padding:0 22px;
  justify-content:center;
}

/* 右栏 头像:横向海报裁切,贴近参考图的平直截边与出血比例 */
.hero__right{display:flex;justify-content:flex-start;align-items:flex-start;}
.portrait{
  position:relative;
  flex:none;
  width:min(68vw,1240px);
  aspect-ratio:945/638;
  margin-top:calc(var(--nav-h) - 72px);
  margin-left:clamp(6px,1vw,22px);
}
.portrait__media{position:absolute;inset:0;overflow:hidden;}
.portrait__img{
  position:absolute;top:0;left:0;
  width:100%;height:auto;max-width:none;
  opacity:0;
  mix-blend-mode:multiply;
  transform-origin:50% 46%;
  transition:opacity .35s var(--ease),filter .35s var(--ease);
}
/* 默认是细 plus,用于 about 人物和局部装饰 */
.portrait__cross{position:absolute;z-index:5;display:block;width:74px;height:74px;pointer-events:none;}
.portrait__cross::before,.portrait__cross::after{content:"";position:absolute;background:var(--line);opacity:.9;}
.portrait__cross::before{left:50%;top:0;width:1px;height:100%;transform:translateX(-.5px);}
.portrait__cross::after{top:50%;left:0;width:100%;height:1px;transform:translateY(-.5px);}
.portrait__cross--tl{top:58px;left:0;}
.portrait__cross--br{right:120px;bottom:-38px;}
/* 首页人物图用取景 L 角 */
.hero .portrait__cross{width:58px;height:58px;--corner-overhang:6px;}
.hero .portrait__cross::before,.hero .portrait__cross::after{transform:none;}
.hero .portrait__cross::before,
.hero .portrait__cross::after{background:rgba(201,192,178,.95);opacity:1;}
.hero .portrait__cross--tl{top:94px;left:58px;}
.hero .portrait__cross--tl::before{
  top:0;left:calc(var(--corner-overhang) * -1);
  width:calc(100% + var(--corner-overhang));height:1px;
}
.hero .portrait__cross--tl::after{
  top:calc(var(--corner-overhang) * -1);left:0;
  width:1px;height:calc(100% + var(--corner-overhang));
}
.hero .portrait__cross--br{right:150px;bottom:8px;}
.hero .portrait__cross--br::before{
  top:auto;left:auto;right:calc(var(--corner-overhang) * -1);bottom:0;
  width:calc(100% + var(--corner-overhang));height:1px;
}
.hero .portrait__cross--br::after{
  top:auto;left:auto;right:0;bottom:calc(var(--corner-overhang) * -1);
  width:1px;height:calc(100% + var(--corner-overhang));
}

/* 头像粒子层:JS 设定 left/top/width/height(向左扩展) */
.portrait__particles{position:absolute;pointer-events:none;z-index:2;}
.portrait.is-particle-ready .portrait__img{
  filter:saturate(.85) contrast(1.12) brightness(.66);
  opacity:0;
}
.portrait.is-base-visible .portrait__img{
  opacity:.42;
  filter:saturate(1.22) contrast(1.18) brightness(.82);
}

/* 入场前隐藏(JS 接管;无 JS/reduced-motion 时由 .is-ready 兜底显示) */
[data-reveal]{opacity:0;transform:translateY(18px);}
.is-ready [data-reveal]{opacity:1;transform:none;}

/* ═══════════ ABOUT ═══════════ */
:root{ --mono:ui-monospace,'SF Mono','Menlo','Roboto Mono',monospace; }

.about{
  position:relative;
  overflow:hidden;
  min-height:100vh;
  padding:calc(var(--nav-h) + 5vh) calc(var(--pad-x) + 40px) 7vh calc(var(--rail-x) + 56px);
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:clamp(48px,5.7vw,96px);
  align-content:start;
}
.about__left,.about__right{position:relative;z-index:1;min-width:0;}
.about__right{padding-top:clamp(18px,1.5vw,24px);}

.about__title{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(72px,7.2vw,126px);line-height:.92;
  margin-bottom:28px;
}
.about__bio p{
  font-family:var(--sans-cjk);font-weight:300;
  font-size:clamp(16px,1.35vw,22px);line-height:1.65;
  color:var(--ink-soft);max-width:31em;margin-bottom:12px;
}

/* ── 工程蓝图档案 ── */
.blueprint{
  position:relative;
  width:100%;
  height:clamp(330px,23vw,342px);
  margin-top:clamp(44px,4vw,58px);
  border:1px solid var(--line);
  background:
    linear-gradient(rgba(201,192,178,.14) 1px,transparent 1px) 0 0/100% 31px,
    linear-gradient(90deg,rgba(201,192,178,.14) 1px,transparent 1px) 0 0/31px 100%;
}
.bp__img{
  position:absolute;bottom:0;left:50%;
  transform:translateX(-47%);
  width:47%;height:auto;max-width:none;
  mix-blend-mode:multiply;
  filter:saturate(0) contrast(1.05);
}
.bp__ring{
  position:absolute;top:50%;left:53%;
  width:44%;aspect-ratio:1;transform:translate(-50%,-50%);
  border:1px solid rgba(240,101,46,.16);border-radius:50%;
}

/* 四角准星 */
.bp__target{
  position:absolute;width:17px;height:17px;border-radius:50%;
  border:1px solid var(--accent);
}
.bp__target::before,.bp__target::after{
  content:"";position:absolute;background:var(--accent);
}
.bp__target::before{top:50%;left:-5px;right:-5px;height:1px;transform:translateY(-50%);}
.bp__target::after{left:50%;top:-5px;bottom:-5px;width:1px;transform:translateX(-50%);}
.bp__target--tl{top:14px;left:14px;}
.bp__target--tr{top:14px;right:14px;}
.bp__target--bl{bottom:14px;left:14px;}
.bp__target--br{bottom:14px;right:14px;}

.bp__plus{
  position:absolute;transform:translate(-50%,-50%);
  font-family:var(--mono);font-size:12px;color:var(--line);
  pointer-events:none;
}

/* 标注通用 */
.bp__anno{position:absolute;}
.bp__mono{
  font-family:var(--mono);font-size:7.6px;line-height:1.62;
  letter-spacing:.04em;color:var(--muted);
  white-space:nowrap;text-transform:uppercase;
}
.bp__mono--key{color:var(--ink-soft);font-weight:600;}
.bp__mono--mt{margin-top:9px;}
.bp__lead{
  display:flex;align-items:center;gap:7px;
  font-family:var(--mono);font-size:8.5px;font-weight:600;
  letter-spacing:.06em;color:var(--ink);text-transform:uppercase;
}
.bp__sq{width:5px;height:5px;background:var(--accent);display:inline-block;}
.bp__hr{display:block;width:110px;height:1px;background:var(--line);margin:7px 0;}
.bp__hatch{
  display:block;width:42px;height:12px;margin-top:6px;
  background:repeating-linear-gradient(45deg,var(--line) 0 1px,transparent 1px 4px);
}

.bp__anno--tl{top:28px;left:34px;}
.bp__anno--spec{top:32%;left:34px;}
.bp__anno--ver{bottom:58px;left:34px;}
.bp__anno--tr{top:28px;right:34px;text-align:right;}
.bp__anno--cat{top:32%;right:34px;text-align:right;}
.bp__anno--cat .bp__hatch{margin-left:auto;}
.bp__anno--focus{top:60%;right:34px;text-align:right;}
.bp__anno--est{bottom:58px;right:34px;text-align:right;}

.bp__coords{
  position:absolute;left:50%;bottom:16px;transform:translateX(-50%);
  font-family:var(--mono);font-size:8px;line-height:1.55;letter-spacing:.12em;
  color:var(--ink-soft);white-space:nowrap;
}

/* ── 写 · 拍 · 创 三连圆 ── */
.flow{
  display:grid;
  grid-template-columns:auto minmax(44px,1fr) auto minmax(44px,1fr) auto;
  align-items:center;
  margin-bottom:clamp(48px,5vw,66px);
}
.flow__node{
  position:relative;flex:0 0 auto;
  width:clamp(92px,7.3vw,122px);aspect-ratio:1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  border:1px solid var(--accent);border-radius:50%;
  transition:border-color .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
}
.flow__node:hover{
  border-color:#D94F1F;
  background:rgba(240,101,46,.1);
  box-shadow:inset 0 0 0 1px rgba(217,79,31,.2);
}
.flow__zh{
  font-family:var(--serif-cjk);font-weight:600;
  font-size:clamp(28px,2.5vw,36px);line-height:1;color:var(--ink);
  transition:color .25s var(--ease);
}
.flow__en{
  font-family:var(--mono);font-size:10px;letter-spacing:.08em;
  color:var(--muted);
  transition:color .25s var(--ease);
}
.flow__node:hover .flow__zh{color:#D94F1F;}
.flow__node:hover .flow__en{color:var(--ink);}
.flow__link{
  height:1px;min-width:18px;
  background:var(--accent);opacity:.55;
}

/* ── 全平台信号台 ── */
.signal{max-width:650px;margin-left:clamp(16px,2vw,34px);}
.signal__head{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding-bottom:16px;border-bottom:1px solid var(--ink);
  margin-bottom:0;
}
.signal__title{
  font-family:var(--serif-cjk);font-weight:600;
  font-size:clamp(24px,2.25vw,32px);line-height:1;
}
.signal__legend{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--muted);
}
.signal__legend b{color:var(--accent);font-weight:600;}

.signal__list{list-style:none;margin:0;padding:0;}
.srow{border-bottom:1px solid var(--line);}
.srow > a,.srow.srow--soon{
  display:grid;
  grid-template-columns:clamp(42px,4vw,52px) minmax(86px,180px) clamp(48px,5.4vw,72px) clamp(76px,7vw,112px) clamp(54px,5.5vw,74px);
  justify-content:space-between;
  align-items:center;column-gap:0;
  min-height:72px;
  padding:10px 0;
  transition:background .25s;
}
.srow > a:hover{background:rgba(240,101,46,.11);}

.srow__logo{
  width:44px;height:44px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
}
.srow__logo svg{width:22px;height:22px;display:block;}
.srow__logo--x{background:transparent;color:var(--ink);}
.srow__logo--x svg{width:42px;height:42px;}
.srow__logo--x svg path{fill:currentColor;}
.srow__logo--tg{background:#29A9EB;border-radius:50%;}
.srow__logo--xhs{background:#FF2442;}
.srow__logo--xhs svg{width:32px;height:32px;}
.srow__logo--tt{background:#111;}
.srow__logo--bili{background:#00A1D6;}
.srow__logo--bili svg{width:31px;height:31px;}
.srow__logo--yt{background:#FF0000;}

.srow__handle{
  font-family:var(--sans);font-size:clamp(14px,1.06vw,17px);color:var(--ink);
  letter-spacing:.01em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.srow__count{
  font-family:var(--mono);font-size:clamp(13px,1vw,16px);color:var(--ink);
  font-variant-numeric:tabular-nums;text-align:left;
}

.srow__bars{
  display:flex;align-items:flex-end;gap:5px;height:32px;justify-self:end;
}
.srow__bars i{width:8px;border-radius:2px;background:var(--accent);}
.srow__bars i:nth-child(1){height:32%;}
.srow__bars i:nth-child(2){height:44%;}
.srow__bars i:nth-child(3){height:56%;}
.srow__bars i:nth-child(4){height:68%;}
.srow__bars i:nth-child(5){height:80%;}
.srow__bars i:nth-child(6){height:90%;}
.srow__bars i:nth-child(7){height:100%;}
/* 信号渐弱(小红书) */
.srow__bars--fade i:nth-child(6),
.srow__bars--fade i:nth-child(7){background:var(--line);}
/* SOON:空心条 */
.srow--soon .srow__bars i{background:transparent;border:1px solid var(--line);}
.srow--soon{opacity:.5;}

.srow__status{
  display:flex;align-items:center;gap:7px;justify-self:end;
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--ink);
}
.srow__dot{
  width:7px;height:7px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 0 rgba(240,101,46,.5);animation:srow-pulse 2s infinite;
}
.srow__status--soon{color:var(--muted);}
.srow__status--soon::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--muted);
}
@keyframes srow-pulse{
  0%{box-shadow:0 0 0 0 rgba(240,101,46,.45);}
  70%{box-shadow:0 0 0 6px rgba(240,101,46,0);}
  100%{box-shadow:0 0 0 0 rgba(240,101,46,0);}
}

/* ═══════════ WORK ═══════════ */
.work{
  min-height:100vh;
  padding:calc(var(--nav-h) + 5vh) calc(var(--pad-x) + 40px) 8vh calc(var(--rail-x) + 56px);
}
.work__title{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(56px,7vw,104px);line-height:1;margin-bottom:18px;
}
.work__cats{
  display:flex;align-items:center;gap:20px;
  font-size:14px;letter-spacing:.04em;color:var(--ink);
  padding-bottom:26px;border-bottom:1px solid var(--line);margin-bottom:8px;
}
.cat-sep{width:1px;height:14px;background:var(--line);}
.cat--soon{color:var(--muted);display:inline-flex;align-items:center;gap:8px;}
.cat__zh{display:inline-block;font-weight:inherit;will-change:transform;}
.cat__soon{font-style:normal;font-size:9.5px;letter-spacing:.12em;border:1px solid var(--line);border-radius:2px;padding:1px 6px;}

/* 档案行 */
.wrow{
  display:grid;
  grid-template-columns:58px auto minmax(40px,1fr) auto 150px 28px;
  align-items:center;gap:28px;
  padding:24px 4px;border-bottom:1px solid var(--line);
  transition:padding-left .3s var(--ease);
}
.wrow__rule{height:1px;background:var(--line);align-self:center;}
.wrow:hover{padding-left:10px;}
.wrow__idx{font-family:var(--serif);font-size:30px;color:#9a9082;}
.wrow__body{min-width:0;}
.wrow__meta{display:flex;align-items:center;gap:14px;margin-bottom:8px;}
.wrow__tag{font-size:12px;letter-spacing:.05em;color:var(--muted);}
.wrow__date{font-size:12px;color:var(--line);font-variant-numeric:tabular-nums;}
.wrow__date::before{content:"·  ";color:var(--line);}
.wrow__title{font-family:var(--serif-cjk);font-weight:600;font-size:23px;line-height:1.25;transition:color .25s;}
.wrow__dek{font-family:var(--sans-cjk);font-weight:300;font-size:13.5px;color:var(--muted);margin-top:7px;max-width:42em;transition:color .25s;}
/* hover:整行文字变橙 */
.wrow:hover .wrow__idx,
.wrow:hover .wrow__tag,
.wrow:hover .wrow__date,
.wrow:hover .wrow__title,
.wrow:hover .wrow__dek,
.wrow:hover .wrow__like{color:var(--accent);}
.wrow__idx,.wrow__tag,.wrow__date,.wrow__like{transition:color .25s;}
.wrow__like{
  justify-self:end;font-size:14px;color:var(--ink-soft);
  font-variant-numeric:tabular-nums;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
}
.wrow__like .heart{color:var(--ink);transition:color .25s;}
.wrow:hover .wrow__like .heart{color:var(--accent);}
.wrow__thumb{
  width:150px;height:84px;overflow:hidden;border:1px solid var(--line);
  background:#2a2622;
}
.wrow__thumb img{
  width:100%;height:100%;object-fit:cover;object-position:50% 42%;
  filter:none;                                   /* 默认原图彩色 */
  transition:transform .5s var(--ease),filter .4s var(--ease);
}
/* hover / 点击(active)才上双色调 */
.wrow:hover .wrow__thumb img,
.wrow:active .wrow__thumb img{transform:scale(1.07);filter:url(#duotone);}
.wrow:hover .wrow__thumb img.is-invert,
.wrow:active .wrow__thumb img.is-invert{filter:url(#duotone-invert);}
.wrow__arr{justify-self:end;color:var(--ink);transition:transform .3s var(--ease),color .3s;}
.wrow:hover .wrow__arr{transform:translateX(5px);color:var(--accent);}

/* 所有行统一:头条不再放大(用户要求默认一致)*/

.work__all{
  display:inline-flex;align-items:center;gap:10px;
  margin-top:34px;font-size:14px;border-bottom:1px solid var(--ink);
  padding-bottom:3px;transition:color .25s,border-color .25s;
}
.work__all:hover{color:var(--accent);border-color:var(--accent);}
.work__all .arr{transition:transform .25s var(--ease);}
.work__all:hover .arr{transform:translateX(5px);}

/* ═══════════ CONTACT ═══════════ */
.contact{
  min-height:100vh;
  padding:calc(var(--nav-h) + 4vh) var(--pad-x) 0;
  display:flex;flex-direction:column;
}
.contact__center{text-align:center;margin:auto;padding:4vh 0;}
.contact__kicker{
  display:flex;align-items:center;justify-content:center;gap:14px;
  font-size:12px;letter-spacing:.22em;color:var(--muted);margin-bottom:26px;
}
.contact__kicker .ln{width:40px;height:1px;background:var(--line);}
.contact__title{
  position:relative;display:inline-block;
  font-family:var(--serif);font-weight:500;
  font-size:clamp(72px,10vw,150px);line-height:1;letter-spacing:-.01em;
}
.contact__underline{position:absolute;left:2%;right:2%;bottom:-2px;width:96%;height:.16em;overflow:visible;}
.contact__sub{font-family:var(--sans-cjk);font-size:clamp(17px,1.6vw,21px);color:var(--ink-soft);margin-top:30px;}
.contact__open{font-size:13px;letter-spacing:.04em;color:var(--muted);margin-top:14px;}
.contact__status{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;color:var(--ink-soft);margin-top:24px;
}
.contact__status .pulse{
  width:8px;height:8px;border-radius:50%;background:var(--accent);position:relative;
}
.contact__status .pulse::after{
  content:"";position:absolute;inset:0;border-radius:50%;background:var(--accent);
  animation:pulse 2s var(--ease) infinite;
}
@keyframes pulse{0%{transform:scale(1);opacity:.6}70%{transform:scale(3);opacity:0}100%{opacity:0}}

/* 关键词 marquee */
.contact__marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);}
.marquee__track{display:flex;width:max-content;animation:marquee 36s linear infinite;}
.marquee__set{font-family:var(--serif-cjk);font-size:18px;color:var(--muted);letter-spacing:.06em;white-space:nowrap;flex:none;}
@keyframes marquee{to{transform:translateX(-50%)}}

/* 底部联系栏(竖 hairline 分列,无大方框) */
.contact__bar{
  display:grid;grid-template-columns:1fr 1fr 1fr 1fr;
  border-top:1px solid var(--line);
}
.cbar__item{
  display:flex;align-items:center;gap:14px;
  padding:34px 34px;min-height:160px;
  transition:background .25s;
}
.cbar__item .cbar__val{flex:1;}          /* 把箭头顶到右侧、同一行 */
.cbar__item--mail{align-items:center;gap:14px;}
.cbar__item--mail .cbar__lbl{flex:none;}
.cbar__item--mail .cbar__arr{margin-left:auto;}
.cbar__item--wechat{flex-direction:column;align-items:center;justify-content:center;gap:8px;opacity:.7;}
.cbar__item + .cbar__item{border-left:1px solid var(--line);}
a.cbar__item:hover{background:rgba(26,23,20,.025);}
.cbar__lbl{font-size:11px;letter-spacing:.16em;color:var(--muted);}
.cbar__logo{width:22px;height:22px;}
.cbar__logo svg{width:100%;height:100%;}
.cbar__val{font-size:18px;color:var(--ink);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.cbar__val em{font-style:normal;font-size:13px;color:var(--muted);}
.cbar__val--mail{flex:none !important;border-bottom:1px solid var(--ink);padding-bottom:3px;transition:color .25s,border-color .25s;}
a.cbar__item:hover .cbar__val--mail{color:var(--accent);border-color:var(--accent);}
.cbar__arr{color:var(--ink);transition:transform .25s var(--ease),color .25s;}
a.cbar__item:hover .cbar__arr{transform:translateX(5px);color:var(--accent);}

/* 微信 QR 占位 */
.cbar__item--wechat{align-items:center;justify-content:flex-start;gap:8px;opacity:.7;}
.qr{
  position:relative;width:96px;height:96px;margin-top:2px;
  border:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background-image:radial-gradient(var(--line) .8px,transparent .8px);background-size:7px 7px;
  color:var(--muted);
}
.qr__icon{width:26px;height:26px;}
.qr__txt{font-size:10px;letter-spacing:.08em;}
.qr__cross{position:absolute;width:12px;height:12px;}
.qr__cross::before,.qr__cross::after{content:"";position:absolute;background:var(--line);}
.qr__cross::before{left:5px;top:-3px;width:1px;height:12px;}
.qr__cross::after{top:5px;left:-3px;height:1px;width:12px;}
.qr__cross--tl{top:0;left:0;}
.qr__cross--br{bottom:0;right:0;}
.cbar__soon{font-size:10px;letter-spacing:.12em;color:var(--muted);}

/* 页脚 */
.contact__foot{
  display:flex;justify-content:space-between;align-items:center;
  padding:22px 2px 26px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--muted);letter-spacing:.04em;
}
.to-top{display:inline-flex;gap:7px;transition:color .25s;}
.to-top:hover{color:var(--ink);}
.to-top .arr{transition:transform .25s var(--ease);}
.to-top:hover .arr{transform:translateY(-3px);}

/* ═══════════ 响应式(U10 细化,先给基础堆叠)═══════════ */
@media (max-width:860px){
  .nav{height:72px;padding:0 18px;}
  .nav__brand{font-size:20px;}
  .nav__links{gap:12px;font-size:9.5px;letter-spacing:.04em;}
  .nav__links .sep,.nav__stat,.nav__github{display:none;}
  .nav__links a:nth-of-type(3),.nav__links a:nth-of-type(4){display:none;}
  .hero{
    grid-template-columns:1fr;
    padding:calc(var(--nav-h) + 3vh) var(--pad-x) 5vh calc(var(--rail-x) + 12px);
    gap:6vh;
  }
  .hero__left{padding:0 0 6vh;}
  .hero__wordmark{font-size:clamp(92px,32vw,150px);}
  .hero__lower{margin-left:0;}
  .hero__right{order:-1;}
  .portrait{width:min(76vw,460px);margin-left:0;}
  .portrait__cross{width:56px;height:56px;}
  .hero .portrait__cross{width:42px;height:42px;--corner-overhang:4px;}
  .hero .portrait__cross--tl{top:38px;left:12px;}
  .hero .portrait__cross--br{right:42px;bottom:-10px;}

  .about{
    grid-template-columns:1fr;
    padding:calc(var(--nav-h) + 4vh) var(--pad-x) 8vh calc(var(--rail-x) + 12px);
    gap:44px;
  }
  .about__right{padding-top:0;}
  .blueprint{height:auto;aspect-ratio:1.34;}
  .bp__img{width:55%;transform:translateX(-46%);}
  .bp__anno--spec,.bp__anno--cat,.bp__anno--focus{font-size:8px;}
  .flow{margin-bottom:38px;}
  .signal{max-width:none;margin-left:0;}
  .srow > a,.srow.srow--soon{
    grid-template-columns:36px minmax(0,1fr) auto;
    justify-content:stretch;
    gap:10px;
  }
  .srow__logo{width:36px;height:36px;}
  .srow__logo--x svg{width:34px;height:34px;}
  .srow__bars{height:18px;}
  .srow__bars,.srow__status{display:none;}

  .work{
    padding:calc(var(--nav-h) + 4vh) var(--pad-x) 8vh calc(var(--rail-x) + 12px);
  }
  .work__cats{gap:10px;flex-wrap:wrap;}
  .wrow{
    grid-template-columns:42px minmax(0,1fr) 24px;
    gap:12px;
    padding:20px 0;
  }
  .wrow__rule,.wrow__like,.wrow__thumb{display:none;}
  .wrow__title{font-size:20px;}

  .contact{
    padding:calc(var(--nav-h) + 4vh) var(--pad-x) 0;
  }
  .contact__marquee{max-width:100%;contain:layout paint;}
  .contact__bar{grid-template-columns:1fr;}
  .cbar__item{min-height:auto;padding:22px 0;}
  .cbar__item + .cbar__item{border-left:0;border-top:1px solid var(--line);}
}

@media (max-width:600px){
  .hero{
    min-height:100svh;
    padding:calc(var(--nav-h) + 22px) var(--pad-x) 48px;
    gap:34px;
  }
  .hero__left{padding:0;}
  .hero__lower{margin-top:28px;}
  .hero__wordmark{font-size:clamp(104px,34vw,136px);}
  .hero__kicker{
    font-size:14px;
    letter-spacing:.04em;
    margin-bottom:20px;
  }
  .hero__slogan{
    font-size:20px;
    line-height:1.55;
    margin-bottom:24px;
  }
  .hero__cta{
    width:100%;
    max-width:330px;
    gap:12px;
  }
  .hero__cta .btn{
    height:56px;
    padding:0 12px;
    font-size:14px;
  }
  .hero__right{justify-content:center;}
  .portrait{
    width:min(100%,330px);
    margin-top:0;
    overflow:hidden;
  }

  .about{
    padding:calc(var(--nav-h) + 36px) var(--pad-x) 72px;
    gap:38px;
  }
  .about__title{
    font-size:clamp(56px,18vw,76px);
    margin-bottom:22px;
  }
  .about__bio p{
    font-size:15.5px;
    line-height:1.7;
  }
  .blueprint{
    max-width:100%;
    aspect-ratio:1.16;
    margin-top:34px;
    overflow:hidden;
  }
  .bp__anno--tl{left:20px;}
  .bp__anno--spec{left:20px;}
  .bp__anno--ver{left:20px;}
  .bp__anno--tr{right:20px;}
  .bp__anno--cat{right:20px;}
  .bp__anno--focus{right:20px;}
  .bp__anno--est{right:20px;}

  .flow{
    grid-template-columns:auto minmax(18px,1fr) auto minmax(18px,1fr) auto;
    margin-bottom:32px;
  }
  .flow__node{width:clamp(72px,22vw,88px);}
  .flow__zh{font-size:24px;}
  .flow__en{font-size:9px;}
  .signal{max-width:100%;}
  .signal__head{
    align-items:flex-start;
    gap:12px;
  }

  .contact{
    padding:calc(var(--nav-h) + 34px) var(--pad-x) 0;
  }
  .contact__center{padding:40px 0;}
  .contact__kicker{
    gap:8px;
    font-size:10px;
  }
  .contact__kicker .ln{width:24px;}
  .contact__title{
    font-size:clamp(50px,15vw,60px);
    white-space:nowrap;
  }
  .contact__sub{font-size:15.5px;}
  .cbar__item{
    gap:10px;
    padding:18px 0;
  }
  .cbar__val{
    min-width:0;
    font-size:15px;
    overflow-wrap:anywhere;
  }
  .contact__foot{
    gap:18px;
    font-size:11.5px;
  }
}