/* =============================================================================
   kage · subpage system
   子页面（作品 / 详情 / 关于我 / 联系）共享的样式层。
   依赖：fonts.css + kage.css（tokens、nav、type、foot、data-rv 动画）
   只做「kage 语汇的延伸」，不引入第二套设计系统。
   ========================================================================== */

/* ---------------------------------------------------------------- atmosphere
   子页面没有 Three.js 场景，用同样的夜色层次托住：深底 + 朱红远光 + 雾斑 + 颗粒 */
.sub-bg{ position:fixed; inset:0; z-index:0; pointer-events:none; overflow:hidden;
  background:
    radial-gradient(120% 78% at 78% -8%, rgba(224,35,28,.20), transparent 58%),
    radial-gradient(110% 70% at 6% 104%, rgba(60,96,96,.22), transparent 62%),
    linear-gradient(180deg,#05070a 0%,#070b10 46%,#05070a 100%);
}
.sub-bg .blob{ position:absolute; border-radius:50%; filter:blur(70px); opacity:.5; }
.sub-bg .blob--a{ width:46vw; height:46vw; right:-10vw; top:-14vw;
  background:radial-gradient(circle at 50% 50%, rgba(224,35,28,.34), transparent 66%);
  animation:drift 26s var(--ease-io) infinite alternate; }
.sub-bg .blob--b{ width:38vw; height:38vw; left:-12vw; bottom:-14vw;
  background:radial-gradient(circle at 50% 50%, rgba(120,168,160,.20), transparent 68%);
  animation:drift 34s var(--ease-io) infinite alternate-reverse; }
@keyframes drift{ from{ transform:translate3d(0,0,0) scale(1) } to{ transform:translate3d(-4vw,3vw,0) scale(1.12) } }
.sub-grain{ position:fixed; inset:0; z-index:60; pointer-events:none; opacity:.05; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:180px 180px; }
.sub-vig{ position:fixed; inset:0; z-index:55; pointer-events:none;
  background:radial-gradient(125% 95% at 50% 40%, transparent 42%, rgba(2,4,6,.6) 100%); }

/* ---------------------------------------------------------------- page shell */
body.sub{ background:var(--ink); }
.sub .page{ padding-top:0; }
.sub-sec{ position:relative; padding:clamp(56px,9vh,120px) var(--pad); }
.sub-sec--tight{ padding-top:clamp(28px,5vh,56px); }

/* ---------------------------------------------------------------- page head */
.phead{ position:relative; padding:calc(var(--nav-h) + clamp(40px,9vh,110px)) var(--pad) clamp(30px,6vh,72px); }
.phead .eyebrow{ display:flex; align-items:center; gap:10px; margin-bottom:18px; }
.phead .eyebrow .dot{ width:5px; height:5px; border-radius:50%; background:var(--vermilion); box-shadow:0 0 10px var(--vermilion); }
.phead h1{ font-family:'Onest','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:clamp(34px,6.2vw,86px); line-height:1.04; letter-spacing:-.03em; margin-bottom:20px; }
.phead .lead{ max-width:52ch; font-size:clamp(13px,1.05vw,17px); line-height:1.78; color:#b4bfb7; font-weight:300; }
.phead .jp{ margin-top:26px; font-size:11px; letter-spacing:.52em; color:var(--muted); }

/* ---------------------------------------------------------------- numerals */
.numeral{ font-family:'Onest',serif; font-size:clamp(40px,5.4vw,84px); font-weight:300; line-height:.86;
  letter-spacing:-.04em; color:transparent; -webkit-text-stroke:1px rgba(223,231,224,.34); }
.numeral--sm{ font-size:clamp(26px,3vw,44px); -webkit-text-stroke-width:.8px; }

/* ---------------------------------------------------------------- section head */
.shead{ display:flex; align-items:baseline; gap:clamp(14px,2vw,28px); margin-bottom:clamp(24px,4vh,54px); }
.shead h2{ font-size:clamp(20px,2.4vw,32px); letter-spacing:-.01em; }
.shead .shead-n{ margin-left:auto; font-size:10px; letter-spacing:.28em; text-transform:uppercase; color:var(--muted); }
.shead-rule{ height:1px; background:var(--line-soft); margin:0 0 clamp(24px,4vh,52px); }

/* ---------------------------------------------------------------- work grid */
.wgrid{ display:grid; gap:clamp(14px,1.8vw,30px); }
.wgrid--duo{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.wgrid--tri{ grid-template-columns:repeat(3,minmax(0,1fr)); }

.wcard{ position:relative; display:flex; flex-direction:column; padding:clamp(16px,1.6vw,26px);
  border:1px solid var(--line-soft); border-radius:2px; overflow:hidden;
  background:linear-gradient(165deg, rgba(12,17,21,.62), rgba(6,9,12,.5));
  backdrop-filter:blur(6px); transition:transform .7s var(--ease-out), border-color .5s, background .6s; }
.wcard::after{ content:''; position:absolute; inset:0; pointer-events:none; opacity:0;
  background:radial-gradient(90% 70% at 82% 0%, rgba(224,35,28,.16), transparent 62%); transition:opacity .6s; }
.wcard:hover{ transform:translate3d(0,-6px,0); border-color:rgba(223,231,224,.24); }
.wcard:hover::after{ opacity:1; }

.wcard-top{ display:flex; align-items:flex-start; gap:14px; }
.wcard-tag{ display:inline-flex; align-items:center; gap:7px; font-size:9px; letter-spacing:.26em;
  text-transform:uppercase; color:var(--bone-dim); padding:5px 10px; border:1px solid var(--line); border-radius:99px; }
.wcard-tag i{ width:5px; height:5px; border-radius:50%; background:var(--muted); }
.wcard.live .wcard-tag{ color:#ffb9a8; border-color:rgba(224,35,28,.42); }
.wcard.live .wcard-tag i{ background:var(--vermilion); box-shadow:0 0 9px var(--vermilion); animation:pulse 2.4s infinite; }
@keyframes pulse{ 0%,100%{opacity:1} 50%{opacity:.35} }
.wcard-ar{ margin-left:auto; width:26px; height:26px; display:grid; place-items:center;
  color:var(--bone-dim); opacity:.5; transform:translate3d(-4px,4px,0); transition:.55s var(--ease-out); }
.wcard:hover .wcard-ar{ opacity:1; transform:none; }

.wcard h3{ margin:20px 0 10px; font-size:clamp(17px,1.5vw,23px); line-height:1.32; letter-spacing:-.01em; }
.wcard p{ margin:0; font-size:13px; line-height:1.76; color:#9aa5a0; font-weight:300; }
.wcard-foot{ display:flex; align-items:center; gap:12px; margin-top:auto; padding-top:22px;
  font-size:10px; letter-spacing:.2em; text-transform:uppercase; color:var(--muted); }
.wcard-foot .go{ margin-left:auto; color:var(--bone-dim); }
.wcard-stats{ display:flex; flex-wrap:wrap; gap:8px 18px; margin-top:16px; }
.wcard-stats span{ font-size:10px; letter-spacing:.14em; color:#7d8781; }
.wcard-stats b{ font-weight:400; color:var(--bone-dim); }

/* 缩略视窗 */
.shot{ position:relative; margin-top:20px; aspect-ratio:16/10; overflow:hidden;
  border:1px solid var(--line-soft); background:linear-gradient(150deg,#0d1418,#0a0d10 60%,#1a0c0b); }
.shot img{ width:100%; height:100%; object-fit:cover; object-position:top center; opacity:.7;
  transition:opacity .6s, transform .9s var(--ease-out); }
.wcard:hover .shot img{ opacity:.92; transform:scale(1.03); }
.shot::after{ content:''; position:absolute; inset:0; pointer-events:none;
  background:linear-gradient(180deg, transparent 46%, rgba(4,7,10,.62)); }

/* SaaS 大卡：多一层「在线」气口 */
.wcard--hero{ padding:clamp(20px,2.2vw,36px); }
.wcard--hero .numeral{ margin-bottom:6px; }
.wcard--hero h3{ font-size:clamp(22px,2.5vw,38px); }
.wcard--hero .shot{ aspect-ratio:16/9; margin-top:24px; }

/* 整卡可点，但保留卡内独立链接 */
.wcard h3 a::before{ content:''; position:absolute; inset:0; z-index:2; }
.wcard .orig-link,.wcard .go,.wcard .btnline{ position:relative; z-index:3; }

/* ---------------------------------------------------------------- buttons */
.btnline{ display:inline-flex; align-items:center; gap:12px; font-size:11px; letter-spacing:.24em;
  text-transform:uppercase; color:var(--bone); padding:13px 22px; border:1px solid var(--line); border-radius:99px;
  transition:.5s var(--ease-out); }
.btnline:hover{ border-color:rgba(223,231,224,.5); background:rgba(223,231,224,.06); transform:translate3d(0,-2px,0); }
.btnline--red{ border-color:rgba(224,35,28,.5); color:#ffc4b8; }
.btnline--red:hover{ border-color:rgba(224,35,28,.9); background:rgba(224,35,28,.12); }
.btnline svg{ width:14px; height:14px; }

/* ---------------------------------------------------------------- detail page */
.dhead{ padding:calc(var(--nav-h) + clamp(36px,8vh,100px)) var(--pad) 0; }
.dhead .eyebrow{ display:flex; align-items:center; gap:10px; margin-bottom:16px; }
.dhead h1{ font-size:clamp(28px,4.6vw,62px); line-height:1.08; letter-spacing:-.025em; max-width:20ch; margin-bottom:18px; }
.dhead .dsub{ max-width:56ch; font-size:clamp(13px,1.05vw,17px); line-height:1.78; color:#b4bfb7; font-weight:300; }

.dmeta{ display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:1px; margin:clamp(30px,5vh,58px) 0 0;
  border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft); background:var(--line-soft); }
.dmeta div{ padding:18px 18px 20px; background:rgba(5,7,10,.72); }
.dmeta dt{ font-size:9px; letter-spacing:.26em; text-transform:uppercase; color:var(--muted); margin-bottom:8px; }
.dmeta dd{ margin:0; font-size:13px; color:var(--bone-dim); line-height:1.6; }

.dbody{ position:relative; padding:clamp(46px,8vh,110px) var(--pad); }
.dblock{ display:grid; grid-template-columns:minmax(0,190px) minmax(0,1fr); gap:clamp(18px,3vw,54px);
  padding:clamp(26px,4vh,46px) 0; border-top:1px solid var(--line-soft); }
.dblock:first-child{ border-top:0; }
.dblock h3{ font-size:12px; letter-spacing:.22em; text-transform:uppercase; color:var(--bone-dim); padding-top:4px; }
.dblock .dtx{ max-width:70ch; }
.dblock .dtx p{ margin:0 0 14px; font-size:14px; line-height:1.85; color:#9aa5a0; font-weight:300; }
.dblock .dtx p strong{ color:var(--bone); font-weight:400; }
.dblock ul{ margin:0; padding:0; list-style:none; }
.dblock li{ position:relative; padding-left:18px; margin-bottom:11px; font-size:13.5px; line-height:1.78; color:#9aa5a0; font-weight:300; }
.dblock li::before{ content:''; position:absolute; left:0; top:11px; width:6px; height:1px; background:var(--vermilion); }
.dblock li b{ color:var(--bone-dim); font-weight:400; }

.dquote{ position:relative; margin:clamp(30px,5vh,56px) 0; padding:clamp(22px,3vw,38px);
  border-left:1px solid rgba(224,35,28,.55); background:linear-gradient(90deg, rgba(224,35,28,.07), transparent 72%); }
.dquote p{ margin:0; font-size:clamp(15px,1.5vw,21px); line-height:1.7; color:var(--bone); font-weight:300; letter-spacing:-.01em; }

.dstats{ display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:clamp(14px,2vw,28px); }
.dstat{ padding:20px 0 0; border-top:1px solid var(--line); }
.dstat b{ display:block; font-size:clamp(24px,3vw,40px); font-weight:300; letter-spacing:-.02em; color:var(--bone); font-variant-numeric:tabular-nums; }
.dstat span{ display:block; margin-top:8px; font-size:11px; letter-spacing:.1em; color:var(--muted); line-height:1.6; }

/* 原件陈列柜 */
.orig{ position:relative; padding:clamp(36px,6vh,84px) var(--pad); border-top:1px solid var(--line-soft); }
.orig-in{ border:1px solid var(--line); background:rgba(8,11,15,.7); padding:clamp(20px,2.6vw,40px); }
.orig-top{ display:flex; flex-wrap:wrap; align-items:flex-end; gap:16px; margin-bottom:20px; }
.orig-top h2{ font-size:clamp(18px,2vw,28px); }
.orig-top .note{ margin-left:auto; max-width:36ch; font-size:11.5px; line-height:1.7; color:var(--muted); }
.orig-bar{ display:flex; flex-wrap:wrap; gap:12px; align-items:center; }
.orig-bar .meta{ font-size:10px; letter-spacing:.2em; text-transform:uppercase; color:var(--muted); margin-left:4px; }
.orig-frame{ margin-top:26px; border:1px solid var(--line-soft); background:#080b0e; display:none; }
.orig-frame.on{ display:block; }
.orig-frame .bar{ display:flex; align-items:center; gap:10px; padding:10px 14px; border-bottom:1px solid var(--line-soft);
  font-size:10px; letter-spacing:.2em; text-transform:uppercase; color:var(--muted); }
.orig-frame iframe{ display:block; width:100%; height:min(72vh,760px); border:0; background:#fff; }

/* 下一件 */
.nextup{ position:relative; padding:clamp(40px,7vh,96px) var(--pad); border-top:1px solid var(--line-soft); }
.nextup a{ display:flex; flex-wrap:wrap; align-items:baseline; gap:16px; }
.nextup .k{ font-size:10px; letter-spacing:.28em; text-transform:uppercase; color:var(--muted); }
.nextup h3{ font-size:clamp(20px,2.6vw,34px); letter-spacing:-.01em; transition:color .4s; }
.nextup a:hover h3{ color:#fff; }
.nextup .ar{ margin-left:auto; color:var(--bone-dim); }

/* ---------------------------------------------------------------- about */
.phead--split{ display:grid; grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:clamp(28px,5vw,72px); align-items:center; }
.phead--split .phead-tx{ min-width:0; }

/* ---- 照片书：一摞可翻的画布照片 ---- */
.album{ position:relative; min-width:0; user-select:none; -webkit-user-select:none; }
.album-stage{ position:relative; width:min(88%,330px); margin:0 auto;
  aspect-ratio:41/58; /* 相纸 3/4 + 边距，舞台随卡片等比伸缩，不会压到下方控件 */
  touch-action:pan-y; cursor:grab; }
.album-stage:active{ cursor:grabbing; }
.album-card{
  position:absolute; left:0; right:0; top:0; width:100%;
  transform: translate3d(0, calc(var(--i) * 9px), 0) rotate(var(--r))
             scale(calc(1 - var(--i) * .022));
  transition: transform .55s var(--ease-out), opacity .4s;
  will-change: transform; z-index:40;
}
.album-card.dragging{ transition:none; }
.album-card.fly-r{ animation:toss-r .55s var(--ease-out) forwards; }
.album-card.fly-l{ animation:toss-l .55s var(--ease-out) forwards; }
.album-card.fly-in-l{ animation:back-l .5s var(--ease-out) both; }
@keyframes toss-r{ to{ transform:translate3d(175%,-3%,0) rotate(13deg); opacity:0; } }
@keyframes toss-l{ to{ transform:translate3d(-175%,-3%,0) rotate(-13deg); opacity:0; } }
@keyframes back-l{ from{ transform:translate3d(-175%,-3%,0) rotate(-12deg); opacity:0; }
                   to{ transform:translate3d(0,0,0) rotate(var(--r)); opacity:1; } }

/* 画布相纸 */
.album-card .p-in{
  position:relative; padding:12px 12px 44px; overflow:hidden;
  background:linear-gradient(160deg,#11161b,#0b0e11 55%,#15131a);
  border:1px solid var(--line-soft);
  box-shadow:0 26px 54px -22px rgba(0,0,0,.78), 0 4px 14px -6px rgba(0,0,0,.5);
  animation:sway calc(6.5s + var(--d,0s)) ease-in-out infinite alternate;
}
@keyframes sway{ from{ transform:rotate(-.35deg) translateY(0); }
                 to{ transform:rotate(.4deg) translateY(-3px); } }
/* 织纹 */
.p-in::before{ content:''; position:absolute; inset:0; z-index:2; pointer-events:none;
  background:
    repeating-linear-gradient(0deg, rgba(223,231,224,.035) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, rgba(223,231,224,.03) 0 1px, transparent 1px 3px);
  mix-blend-mode:screen; }
/* 流动的光 */
.p-in::after{ content:''; position:absolute; inset:0; z-index:3; pointer-events:none;
  background:linear-gradient(105deg, transparent 40%, rgba(223,231,224,.07) 50%, transparent 60%);
  background-size:280% 100%; background-position:120% 0;
  mix-blend-mode:screen; animation:sheen 7.5s ease-in-out infinite; }
@keyframes sheen{ 0%{ background-position:120% 0; } 55%,100%{ background-position:-120% 0; } }
.p-in img{ display:block; width:100%; aspect-ratio:3/4; object-fit:cover;
  filter:saturate(.84) contrast(1.04); pointer-events:none; }
.p-num{ position:absolute; left:17px; right:17px; bottom:15px; z-index:4;
  display:flex; justify-content:space-between; gap:10px;
  font-size:10px; letter-spacing:.2em; color:var(--bone-dim); }
.p-num b{ font-weight:400; color:rgba(223,231,224,.78); }

.album-bar{ display:flex; align-items:center; justify-content:center; gap:16px; margin-top:18px; }
.album-btn{ width:36px; height:36px; display:grid; place-items:center;
  background:none; border:1px solid var(--line-soft); color:var(--bone-dim);
  font-size:14px; cursor:pointer; transition:border-color .4s, color .4s; }
.album-btn:hover{ border-color:rgba(223,231,224,.4); color:var(--bone); }
.album-count{ font-size:11px; letter-spacing:.24em; color:var(--muted); }
.album-count b{ font-weight:400; color:var(--bone); }
.album-count i{ font-style:normal; margin-left:6px; opacity:.6; }
.album-cap{ display:flex; align-items:baseline; gap:12px; margin-top:12px;
  font-size:11px; letter-spacing:.2em; color:var(--muted); }
.album-cap b{ font-weight:400; text-transform:uppercase; color:var(--bone-dim); }

.gallery{ columns:3; column-gap:clamp(12px,1.6vw,24px); }
.gallery figure{ margin:0 0 clamp(12px,1.6vw,24px); break-inside:avoid; position:relative; overflow:hidden; }
.gallery img{ width:100%; display:block; filter:saturate(.86) contrast(1.02); transition:transform 1s var(--ease-out), filter .6s; }
.gallery figure:hover img{ transform:scale(1.04); filter:saturate(1) contrast(1.06); }
.gallery figcaption{ position:absolute; left:0; right:0; bottom:0; padding:14px 16px; font-size:10px; letter-spacing:.18em;
  color:var(--bone-dim); background:linear-gradient(180deg, transparent, rgba(3,6,9,.85)); opacity:0; transition:opacity .5s; }
.gallery figure:hover figcaption{ opacity:1; }

.tl{ position:relative; }
.tl-item{ display:grid; grid-template-columns:minmax(0,150px) minmax(0,1fr); gap:clamp(14px,3vw,44px);
  padding:clamp(20px,3vh,34px) 0; border-top:1px solid var(--line-soft); }
.tl-item:last-child{ border-bottom:1px solid var(--line-soft); }
.tl-when{ font-size:11px; letter-spacing:.2em; color:var(--muted); padding-top:5px; }
.tl-what h3{ font-size:clamp(15px,1.35vw,20px); margin-bottom:8px; }
.tl-what p{ margin:0; font-size:13px; line-height:1.8; color:#9aa5a0; font-weight:300; }
.tl-what .who{ font-size:10px; letter-spacing:.24em; text-transform:uppercase; color:var(--vermilion); margin-bottom:8px; display:block; }

.skills{ display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:clamp(14px,1.8vw,26px); }
.skill{ padding:22px 22px 24px; border:1px solid var(--line-soft); background:rgba(9,13,17,.55); }
.skill h3{ font-size:11px; letter-spacing:.24em; text-transform:uppercase; color:var(--bone-dim); margin-bottom:16px; }
.skill ul{ margin:0; padding:0; list-style:none; display:flex; flex-wrap:wrap; gap:8px; }
.skill li{ font-size:12px; color:#9aa5a0; padding:6px 12px; border:1px solid var(--line-soft); border-radius:99px; }

.motto{ position:relative; padding:clamp(46px,8vh,110px) var(--pad); text-align:center; }
.motto p{ margin:0; font-size:clamp(24px,4.4vw,58px); line-height:1.22; letter-spacing:-.02em; font-weight:300;
  background:linear-gradient(96deg,#dfe7e0 8%,#9fb0a8 46%,#c9a24a 96%); -webkit-background-clip:text; background-clip:text; color:transparent; }
.motto small{ display:block; margin-top:22px; font-size:10px; letter-spacing:.4em; color:var(--muted); text-transform:uppercase; }

/* ---------------------------------------------------------------- contact */
.cgrid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:clamp(14px,1.8vw,26px); }
.ccard{ position:relative; padding:26px 24px 28px; border:1px solid var(--line-soft); background:rgba(9,13,17,.55);
  transition:.6s var(--ease-out); }
.ccard:hover{ border-color:rgba(223,231,224,.26); transform:translate3d(0,-4px,0); }
.ccard .k{ font-size:9px; letter-spacing:.26em; text-transform:uppercase; color:var(--muted); }
.ccard .v{ display:block; margin-top:14px; font-size:clamp(15px,1.5vw,21px); color:var(--bone); word-break:break-all; }
.ccard .hint{ margin-top:10px; font-size:11px; color:var(--muted); }
.ccard button{ position:absolute; right:18px; bottom:20px; font-size:9px; letter-spacing:.22em; color:var(--bone-dim);
  border:1px solid var(--line); border-radius:99px; padding:6px 12px; transition:.4s; }
.ccard button:hover{ border-color:rgba(223,231,224,.5); color:#fff; }

/* ---------------------------------------------------------------- responsive */
@media (max-width:1080px){
  .dmeta{ grid-template-columns:1fr 1fr; }
  .gallery{ columns:2; }
}
@media (max-width:820px){
  .wgrid--duo,.wgrid--tri{ grid-template-columns:1fr; }
  .dblock{ grid-template-columns:1fr; gap:14px; }
  .phead--split{ grid-template-columns:1fr; gap:34px; }
  .album-stage{ width:min(92%,300px); }
  .tl-item{ grid-template-columns:1fr; gap:8px; }
  .gallery{ columns:1; }
  .dhead h1{ font-size:clamp(26px,8vw,40px); }
  .orig-top .note{ margin-left:0; }
}
@media (prefers-reduced-motion:reduce){
  .sub-bg .blob{ animation:none; }
  [data-rv]{ opacity:1 !important; transform:none !important; }
  .mask-line > span{ transform:none !important; }
}