/* ============================================================
   PORTFOLIO — clean Apple-inspired, light / dark
   primary #0021F9 · secondary #4496EA · light #95CDFA
   ============================================================ */
:root{
  --font: -apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue","Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono: "SF Mono",ui-monospace,Menlo,Consolas,monospace;
  --radius:18px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.04),0 4px 16px rgba(0,0,0,.05);
  --shadow-md:0 2px 4px rgba(0,0,0,.05),0 18px 44px rgba(0,0,0,.09);
}
html[data-theme="light"]{
  --bg:#ffffff; --bg-soft:#f6f8fc; --card:#ffffff; --card-2:#eef2f9;
  --line:rgba(15,23,48,.10);
  --text:#0f1730; --muted:#66708a;
  --primary:#0021F9; --primary-soft:rgba(0,33,249,.06);
  --sec:#4496EA; --light:#95CDFA;
  --nav-bg:rgba(255,255,255,.72);
  --hero-bg:linear-gradient(180deg,#fbfcff,#ffffff);
}
html[data-theme="dark"]{
  --bg:#000000; --bg-soft:#0c0f18; --card:#14171f; --card-2:#1c202a;
  --line:rgba(255,255,255,.13);
  --text:#f5f6fa; --muted:#a0a6b4;
  --primary:#5C8AFF; --primary-soft:rgba(92,138,255,.14);
  --sec:#4496EA; --light:#95CDFA;
  --nav-bg:rgba(0,0,0,.66);
  --hero-bg:linear-gradient(180deg,#0a0d14,#000000);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.6;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
  transition:background-color .35s ease,color .35s ease;
}
h1,h2,h3,h4{letter-spacing:-.022em;line-height:1.12}
::selection{background:var(--primary);color:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 28px}
.wrap.wide{max-width:1400px}

/* ---------- scroll progress ---------- */
.scroll-progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:300;background:var(--primary)}

/* ---------- nav ---------- */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);
  background:var(--nav-bg);border-bottom:1px solid transparent;
  transition:background-color .35s ease,border-color .35s ease;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:56px}
.logo{font-weight:600;font-size:.98rem}
.nav-links{display:flex;gap:32px;font-size:.88rem;color:var(--muted)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--text);font-weight:600}
.nav-right{display:flex;align-items:center;gap:12px}
.theme-btn{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:transparent;
  display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text);
  transition:background .2s;
}
.theme-btn:hover{background:var(--card-2)}
.theme-btn svg{width:16px;height:16px;fill:currentColor}
.burger{display:none;background:none;border:0;cursor:pointer;color:var(--text);font-size:1.4rem;line-height:1}
.mobile-menu{
  display:none;position:fixed;inset:0;z-index:99;padding:86px 32px;background:var(--bg);
  flex-direction:column;gap:24px;font-size:1.35rem;font-weight:600;
}
.mobile-menu.open{display:flex}
.mobile-menu a{color:var(--text);border-bottom:1px solid var(--line);padding-bottom:14px}
.mobile-menu a.active{color:var(--primary)}

/* ---------- buttons / labels ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:99px;
  font-weight:600;font-size:.95rem;cursor:pointer;transition:transform .2s,opacity .2s,background .2s;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{opacity:.88;transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--line);color:var(--text);background:var(--card)}
.btn-ghost:hover{background:var(--card-2);transform:translateY(-2px)}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:99px;
  border:1px solid var(--line);background:var(--card);font-size:.79rem;color:var(--muted);box-shadow:var(--shadow-sm);
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:#30d158;box-shadow:0 0 0 3px rgba(48,209,88,.16)}
.tag{font-size:.72rem;padding:4px 11px;border-radius:99px;border:1px solid var(--line);color:var(--muted);background:var(--bg-soft)}
.chip{font-size:.76rem;padding:5px 12px;border-radius:99px;border:1px solid var(--line);color:var(--muted);background:var(--bg-soft);transition:border-color .2s,color .2s}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip:hover{border-color:var(--primary);color:var(--text)}
/* .sec-tag 已并入统一的 .k（见「统一页面开场」一节） */
.sec-tag{font-family:var(--mono);font-size:.7rem;color:var(--primary);letter-spacing:.26em;text-transform:uppercase;font-weight:600;margin-bottom:16px}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;
  padding:150px 0 120px;background:var(--hero-bg);transition:background .35s ease;
}
/* ambient背景：细网格 + 跟随光标的柔光 */
.hero-bg{position:absolute;inset:0;pointer-events:none;z-index:0}
.hero-bg .grid-lines{
  position:absolute;inset:-2px;
  background-image:
    linear-gradient(to right,var(--line) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line) 1px,transparent 1px);
  background-size:74px 74px;
  -webkit-mask-image:radial-gradient(ellipse 68% 58% at 50% 44%,#000 20%,transparent 76%);
          mask-image:radial-gradient(ellipse 68% 58% at 50% 44%,#000 20%,transparent 76%);
  opacity:.6;
  animation:gridDrift 26s linear infinite;
}
@keyframes gridDrift{to{background-position:74px 74px}}
.hero-bg .glow{
  position:absolute;width:820px;height:820px;border-radius:50%;
  left:var(--gmx,50%);top:var(--gmy,44%);transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(0,33,249,.15),rgba(68,150,234,.07) 42%,transparent 68%);
  transition:opacity .6s ease;
}
html[data-theme="dark"] .hero-bg .glow{background:radial-gradient(circle,rgba(92,138,255,.22),rgba(68,150,234,.08) 45%,transparent 70%)}
.hero-content{position:relative;z-index:1}

/* 标题：逐词从下方遮罩升起 */
h1{font-size:clamp(2.5rem,6.4vw,4.8rem);margin:28px auto 18px;max-width:920px;font-weight:700}
h1 .accent{color:var(--primary)}
.h-reveal .w{display:inline-block;overflow:hidden;vertical-align:top;padding-bottom:.14em;margin-bottom:-.14em}
.h-reveal .w > i{
  display:inline-block;font-style:normal;transform:translateY(115%);
  animation:wUp .95s cubic-bezier(.16,.84,.24,1) forwards;
}
@keyframes wUp{to{transform:translateY(0)}}
.h-reveal .w:nth-child(1) > i{animation-delay:.10s}
.h-reveal .w:nth-child(2) > i{animation-delay:.19s}
.h-reveal .w:nth-child(3) > i{animation-delay:.28s}
.h-reveal .w:nth-child(4) > i{animation-delay:.37s}
.h-reveal .w:nth-child(5) > i{animation-delay:.46s}

.fade-up{opacity:0;transform:translateY(18px);animation:fadeUp .9s cubic-bezier(.16,.84,.24,1) forwards}
@keyframes fadeUp{to{opacity:1;transform:none}}
.dl1{animation-delay:.55s}.dl2{animation-delay:.68s}.dl3{animation-delay:.82s}.dl4{animation-delay:.96s}

.type-line{font-family:var(--mono);font-size:clamp(.95rem,2.2vw,1.12rem);color:var(--muted);min-height:1.8em}
.type-line .caret{display:inline-block;width:8px;height:1.05em;background:var(--primary);vertical-align:-.14em;animation:blink 1.05s step-end infinite}
@keyframes blink{50%{opacity:0}}
.hero-sub{max-width:560px;margin:22px auto 0;color:var(--muted);font-size:1rem}
.hero-cta{display:flex;gap:14px;justify-content:center;margin-top:34px;flex-wrap:wrap}

/* ---------- hero 里飘浮的作品缩略图（替代原来的文字堆） ---------- */
.hero-floats{position:absolute;inset:0;z-index:0;pointer-events:none}
.hf{
  position:absolute;border-radius:14px;overflow:hidden;
  box-shadow:0 22px 60px rgba(15,23,48,.16);
  border:1px solid rgba(255,255,255,.5);
  opacity:0;animation:hfIn 1.1s cubic-bezier(.16,.84,.24,1) forwards;
  will-change:transform;
}
html[data-theme="dark"] .hf{box-shadow:0 22px 60px rgba(0,0,0,.6);border-color:rgba(255,255,255,.1)}
.hf > div,.hf > img{
  width:100%;height:100%;object-fit:cover;
  transform:scale(1.14);animation:hfZoom 1.4s cubic-bezier(.16,.84,.24,1) forwards;
}
@keyframes hfIn{to{opacity:1}}
@keyframes hfZoom{to{transform:scale(1)}}
/* 六块：左右各三，避开中间文字区 */
.hf1{left:3.5%;top:20%;width:150px;aspect-ratio:3/4;animation-delay:.75s}
.hf2{left:9%;bottom:15%;width:186px;aspect-ratio:4/3;animation-delay:.95s}
.hf3{left:1%;top:52%;width:112px;aspect-ratio:1/1;animation-delay:1.15s}
.hf4{right:3.5%;top:17%;width:172px;aspect-ratio:4/3;animation-delay:.85s}
.hf5{right:8%;bottom:17%;width:144px;aspect-ratio:3/4;animation-delay:1.05s}
.hf6{right:1.5%;top:54%;width:104px;aspect-ratio:1/1;animation-delay:1.25s}
@media (max-width:1240px){.hf3,.hf6{display:none}}
@media (max-width:1040px){.hero-floats{display:none}}

/* ---------- 数据条：横向跑马灯（替代三个孤零零的数字） ---------- */
.ticker{
  position:relative;margin-top:58px;overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:16px 0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.ticker-track{display:flex;width:max-content;animation:tick 34s linear infinite}
.ticker:hover .ticker-track{animation-play-state:paused}
@keyframes tick{to{transform:translateX(-50%)}}
.ticker-track > span{
  display:inline-flex;align-items:center;gap:11px;padding:0 30px;flex-shrink:0;
  font-size:.94rem;color:var(--muted);white-space:nowrap;
}
.ticker-track > span b{color:var(--text);font-weight:600}
.ticker-track > span em{
  font-style:normal;font-family:var(--mono);font-size:1.02rem;font-weight:700;
  color:var(--primary);letter-spacing:-.02em;
}
.ticker-track .sep{width:5px;height:5px;border-radius:50%;background:var(--primary);opacity:.42;padding:0;margin:0 4px}

/* 滚动提示 */
.scroll-hint{
  position:absolute;left:50%;bottom:34px;transform:translateX(-50%);z-index:1;
  display:flex;flex-direction:column;align-items:center;gap:9px;
  font-family:var(--mono);font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
}
.scroll-hint .rail{width:1px;height:46px;background:var(--line);position:relative;overflow:hidden}
.scroll-hint .rail::after{
  content:"";position:absolute;left:0;top:-46px;width:1px;height:46px;background:var(--primary);
  animation:railRun 1.9s cubic-bezier(.6,0,.4,1) infinite;
}
@keyframes railRun{0%{top:-46px}60%,100%{top:46px}}

/* ---------- pinned showcase：滚动时图片从卡片展开成全屏 ---------- */
.pin-sec{position:relative;height:230vh;background:var(--bg)}
.pin-stage{
  position:sticky;top:0;height:100vh;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
}
.pin-figure{
  position:absolute;inset:0;width:100%;height:100%;
  clip-path:inset(14vh 20vw 14vh 20vw round 26px);
  will-change:clip-path;
  background:var(--card-2);
}
.pin-figure img{
  width:100%;height:100%;object-fit:cover;object-position:center;
  transform:scale(1.18);will-change:transform,filter;
}
/* 展开时压在图上的说明文字 */
.pin-overlay{
  position:absolute;left:0;right:0;bottom:0;z-index:2;padding:56px 6vw;
  background:linear-gradient(transparent,rgba(4,8,24,.66));
  color:#fff;opacity:0;transform:translateY(24px);will-change:opacity,transform;
}
.pin-overlay .k{
  font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;
  color:#95CDFA;margin-bottom:10px;
}
.pin-overlay h2{font-size:clamp(1.6rem,3.6vw,2.7rem);font-weight:700;margin-bottom:10px;color:#fff}
.pin-overlay p{max-width:520px;font-size:.95rem;color:rgba(255,255,255,.78)}
/* 四角取景框，展开前的“镜头”感 */
.pin-frame{position:absolute;inset:0;z-index:3;pointer-events:none}
.pin-frame span{position:absolute;width:22px;height:22px;border:1.5px solid rgba(255,255,255,.75);opacity:0}
.pin-frame span:nth-child(1){left:calc(20vw + 16px);top:calc(14vh + 16px);border-right:0;border-bottom:0}
.pin-frame span:nth-child(2){right:calc(20vw + 16px);top:calc(14vh + 16px);border-left:0;border-bottom:0}
.pin-frame span:nth-child(3){left:calc(20vw + 16px);bottom:calc(14vh + 16px);border-right:0;border-top:0}
.pin-frame span:nth-child(4){right:calc(20vw + 16px);bottom:calc(14vh + 16px);border-left:0;border-top:0}

@media (max-width:760px){
  /* hero 高度随内容自适应，不再被 100vh + overflow 裁掉 */
  .hero{padding:112px 0 64px;min-height:auto}
  .ticker{margin-top:40px}
  .ticker-track > span{font-size:.86rem;padding:0 20px}
  .pin-sec{height:auto}
  .pin-stage{position:static;height:auto;display:block}
  /* 图片按原始比例完整显示，不再固定 62vh 裁切 */
  .pin-figure{position:relative;inset:auto;height:auto;clip-path:inset(0 0 0 0 round 18px);margin:0 24px}
  .pin-figure img{transform:none;height:auto}
  .pin-overlay{opacity:1;transform:none;padding:28px 24px}
  .pin-frame{display:none}
}
@media (prefers-reduced-motion:reduce){
  .h-reveal .w > i{transform:none;animation:none}
  .fade-up{opacity:1;transform:none;animation:none}
  .hero-bg .grid-lines{animation:none}
  .scroll-hint .rail::after{animation:none}
}

/* ---------- page hero (subpages) ---------- */
/* ---------- 统一页面开场（Blog / About / Contact 共用） ----------
   与首页 / Work / Gallery 同一套语言：
   mono kicker · 逐词升起标题 · 居中副标题 · mono 元数据行 · ambient 背景 */
.page-hero{
  position:relative;overflow:hidden;
  padding:168px 0 96px;text-align:center;
  background:var(--hero-bg);transition:background .35s ease;
}
.page-hero .ph-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.page-hero .ph-bg .grid-lines{
  position:absolute;inset:-2px;
  background-image:
    linear-gradient(to right,var(--line) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line) 1px,transparent 1px);
  background-size:74px 74px;
  -webkit-mask-image:radial-gradient(ellipse 70% 76% at 50% 34%,#000 12%,transparent 74%);
          mask-image:radial-gradient(ellipse 70% 76% at 50% 34%,#000 12%,transparent 74%);
  opacity:.5;animation:gridDrift 26s linear infinite;
}
.page-hero .ph-bg .orb{
  position:absolute;left:50%;top:28%;width:720px;height:720px;transform:translate(-50%,-50%);
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,33,249,.11),rgba(68,150,234,.05) 44%,transparent 70%);
  animation:orbFloat 14s ease-in-out infinite;
}
html[data-theme="dark"] .page-hero .ph-bg .orb{background:radial-gradient(circle,rgba(92,138,255,.18),rgba(68,150,234,.06) 46%,transparent 72%)}
@keyframes orbFloat{50%{transform:translate(-50%,-56%) scale(1.06)}}
.page-hero .ph-inner{position:relative;z-index:1}
.page-hero h1{font-size:clamp(2.5rem,6.4vw,4.6rem);margin:0 auto 18px;max-width:880px}
.page-hero .sub{color:var(--muted);max-width:520px;margin:0 auto;font-size:1rem}

/* 共用：mono kicker */
.k{
  font-family:var(--mono);font-size:.7rem;letter-spacing:.26em;text-transform:uppercase;
  color:var(--primary);font-weight:600;margin-bottom:16px;
}
/* 共用：mono 元数据行 */
.hero-meta{
  display:flex;gap:24px;flex-wrap:wrap;justify-content:center;margin-top:30px;
  font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
}
.hero-meta b{color:var(--primary);font-weight:700;font-size:.86rem}

/* ---------- sections ---------- */
section{padding:100px 0}
/* 章节头：整行贯通细线 + 左标题 + 右链接，全站统一 */
.sec-head{
  position:relative;padding-top:28px;margin-bottom:52px;
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.sec-head::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--line);
}
/* 主色小段随滚动展开 */
.sec-head::after{
  content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--primary);
  transition:width 1s cubic-bezier(.16,.84,.24,1) .1s;
}
.sec-head.visible::after{width:72px}
.sec-head .sh-left{max-width:640px}
.sec-title{font-size:clamp(1.9rem,4.3vw,2.8rem);font-weight:700;margin:12px 0 12px}
.sec-desc{color:var(--muted);font-size:.96rem}
/* 右侧「查看全部」，替代原来居中的按钮 */
.sec-link{
  display:inline-flex;align-items:center;gap:9px;flex-shrink:0;
  font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;
  font-weight:600;color:var(--primary);padding-bottom:6px;
}
.sec-link .arw{
  width:30px;height:30px;border-radius:50%;border:1px solid var(--primary);
  display:flex;align-items:center;justify-content:center;
  transition:background .3s,color .3s,transform .35s cubic-bezier(.2,.7,.2,1);
}
.sec-link:hover .arw{background:var(--primary);color:#fff;transform:rotate(-45deg)}
@media (max-width:640px){.sec-head{margin-bottom:36px}}

/* ---------- work cards ---------- */
/* fixed 3-column track: card size stays IDENTICAL whether 1, 2, 3 or 6 cards show */
.work-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch}
@media (max-width:1000px){.work-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.work-grid{grid-template-columns:minmax(0,1fr)}}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s;
  /* flex column so every card in a row ends up exactly the same height */
  display:flex;flex-direction:column;height:100%;
}
.card{position:relative}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--primary)}
/* hover 时一道光沿卡片扫过 */
.card::after{
  content:"";position:absolute;inset:0;z-index:3;pointer-events:none;border-radius:inherit;
  background:linear-gradient(105deg,transparent 32%,rgba(255,255,255,.42) 48%,transparent 64%);
  transform:translateX(-120%);opacity:0;transition:opacity .2s;
}
.card:hover::after{opacity:1;animation:sheen .85s cubic-bezier(.3,.1,.3,1)}
@keyframes sheen{from{transform:translateX(-120%)}to{transform:translateX(120%)}}
html[data-theme="dark"] .card::after{background:linear-gradient(105deg,transparent 32%,rgba(255,255,255,.10) 48%,transparent 64%)}
.card-art{aspect-ratio:16/9;flex:0 0 auto;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.card-art img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.card-art .glyph{
  width:54px;height:54px;border-radius:14px;background:rgba(255,255,255,.92);
  display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:700;color:var(--primary);
  box-shadow:0 8px 22px rgba(0,33,249,.16);transition:transform .3s ease;
}
.card:hover .card-art .glyph{transform:translateY(-4px)}
.art-a{background:linear-gradient(135deg,#e8f0ff,#cfe2ff)}
.art-b{background:linear-gradient(135deg,#f0f6ff,#dcebff)}
.art-c{background:linear-gradient(135deg,#dceaff,#b9d7fb)}
.art-d{background:linear-gradient(135deg,#eef4ff,#d5e7ff)}
.art-e{background:linear-gradient(135deg,#e3edff,#c4dcfa)}
.art-f{background:linear-gradient(135deg,#f2f7ff,#e0edff)}
html[data-theme="dark"] .card-art{filter:brightness(.42) saturate(1.1)}
html[data-theme="dark"] .card-art .glyph{filter:brightness(2.2)}
.card-body{padding:22px 24px 24px;flex:1;display:flex;flex-direction:column}
.card-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px;min-height:24px;align-items:flex-start}
.card-body h3{
  font-size:1.12rem;font-weight:600;margin-bottom:6px;line-height:1.35;
  /* 标题最多 2 行，保证每行卡片高度一致；不想截断就删掉下面 4 行 */
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  color:var(--muted);font-size:.9rem;flex:1;line-height:1.65;
  /* 摘要最多 3 行 */
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-link{display:inline-flex;align-self:flex-start;align-items:center;gap:6px;margin-top:16px;font-size:.85rem;font-weight:600;color:var(--primary)}
.card-link:hover{gap:10px;transition:gap .2s}
.center-btn{display:flex;justify-content:center;margin-top:48px}

/* ---------- tabs ---------- */
.tab-bar{
  display:flex;gap:10px;margin-bottom:38px;
  /* 与 gallery 筛选条一致：窄屏横向滚动，不换行 */
  flex-wrap:nowrap;overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;padding-bottom:4px;
}
.tab-bar::-webkit-scrollbar{display:none}
/* narrow: 与下方 900px 的 blog 列表左边对齐 */
.tab-bar.narrow{max-width:900px;margin-left:auto;margin-right:auto}
.tab-btn{
  flex-shrink:0;
  padding:9px 20px;border-radius:99px;border:1px solid var(--line);background:var(--card);
  color:var(--muted);font-size:.88rem;font-weight:600;cursor:pointer;font-family:var(--font);
  transition:background .2s,color .2s,border-color .2s;
}
.tab-btn:hover{color:var(--text);border-color:var(--primary)}
.tab-btn.active{background:var(--primary);color:#fff;border-color:transparent}
.tab-item{transition:opacity .3s ease,transform .3s ease}
.fade-in{animation:cardIn .4s ease}
@keyframes cardIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ---------- blog list ---------- */
/* 与 Work / Gallery 同一套语言：编号 + 巨大标题 + 悬停整行推进 */
.blog-list{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
.post{
  position:relative;display:grid;grid-template-columns:64px 1fr auto;gap:26px;align-items:center;
  padding:30px 22px;border-bottom:1px solid var(--line);
  overflow:hidden;isolation:isolate;
  transition:padding-left .4s cubic-bezier(.2,.7,.2,1);
}
/* 悬停时主色从左侧扫入作为底 */
.post::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:var(--primary-soft);
  transform:scaleX(0);transform-origin:left;
  transition:transform .5s cubic-bezier(.2,.7,.2,1);
}
.post:hover::before{transform:scaleX(1)}
.post:hover{padding-left:34px}

.post .p-idx{
  font-family:var(--mono);font-size:.78rem;color:var(--muted);letter-spacing:.06em;
  transition:color .3s;
}
.post:hover .p-idx{color:var(--primary)}

.post .p-main{min-width:0}
.post .date{
  font-family:var(--mono);font-size:.7rem;color:var(--muted);
  letter-spacing:.14em;text-transform:uppercase;
}
.post .date .cat{color:var(--primary);font-weight:600}
.post h3{
  font-size:clamp(1.2rem,2.5vw,1.62rem);font-weight:600;margin:9px 0 7px;line-height:1.24;
  transition:transform .4s cubic-bezier(.2,.7,.2,1);
}
.post p{
  color:var(--muted);font-size:.92rem;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
/* 右侧圆形箭头，取代文字 Read more */
.post .p-go{
  flex:0 0 auto;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:var(--card);
  display:flex;align-items:center;justify-content:center;color:var(--muted);
  font-size:1.05rem;
  transition:background .3s,color .3s,border-color .3s,transform .4s cubic-bezier(.2,.7,.2,1);
}
.post:hover .p-go{
  background:var(--primary);color:#fff;border-color:transparent;
  transform:rotate(-45deg) scale(1.06);
}
@media (max-width:640px){
  .post{grid-template-columns:1fr auto;gap:16px;padding:24px 14px}
  .post .p-idx{display:none}
  .post:hover{padding-left:18px}
}

/* ---------- 首页 Recent Projects：与 Work 图块同语言 ---------- */
.proj-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
@media (max-width:1000px){.proj-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.proj-grid{grid-template-columns:minmax(0,1fr)}}
.proj{display:flex;flex-direction:column;height:100%}
.proj-art{
  position:relative;aspect-ratio:4/3;border-radius:14px;overflow:hidden;
  box-shadow:0 16px 44px rgba(15,23,48,.10);
  transition:transform .45s cubic-bezier(.2,.7,.2,1),box-shadow .45s;
}
html[data-theme="dark"] .proj-art{box-shadow:0 16px 44px rgba(0,0,0,.5)}
.proj-art > div,.proj-art img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.proj:hover .proj-art{transform:translateY(-8px);box-shadow:0 26px 60px rgba(15,23,48,.18)}
.proj:hover .proj-art > div,.proj:hover .proj-art img{transform:scale(1.06)}
/* hover 时一道光扫过 */
.proj-art::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(105deg,transparent 34%,rgba(255,255,255,.4) 50%,transparent 66%);
  transform:translateX(-120%);opacity:0;
}
.proj:hover .proj-art::after{opacity:1;animation:sheen .9s cubic-bezier(.3,.1,.3,1)}
html[data-theme="dark"] .proj-art::after{background:linear-gradient(105deg,transparent 34%,rgba(255,255,255,.1) 50%,transparent 66%)}

.proj-info{display:flex;flex-direction:column;flex:1;padding:20px 2px 0;position:relative}
.proj-info .p-no{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;color:var(--muted);
  transition:color .3s;
}
.proj:hover .proj-info .p-no{color:var(--primary)}
.proj-info .p-txt{flex:1}
.proj-info h3{
  font-size:1.14rem;font-weight:600;margin:8px 0 6px;line-height:1.32;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.proj-info p{
  color:var(--muted);font-size:.9rem;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.proj-info .p-tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:14px}
/* 底部细线，hover 时铺开 */
.proj-info::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .55s cubic-bezier(.2,.7,.2,1);
}
.proj:hover .proj-info::after{transform:scaleX(1)}

/* ---------- 首页 Blog 预览：沿用 Blog 页的行式语言 ---------- */
.post-grid{max-width:none;border-top:1px solid var(--line)}
.post-card{
  position:relative;display:grid;grid-template-columns:64px 1fr auto;gap:26px;align-items:center;
  padding:28px 22px;border-bottom:1px solid var(--line);
  overflow:hidden;isolation:isolate;
  transition:padding-left .4s cubic-bezier(.2,.7,.2,1);
}
.post-card::before{
  content:"";position:absolute;inset:0;z-index:-1;background:var(--primary-soft);
  transform:scaleX(0);transform-origin:left;
  transition:transform .5s cubic-bezier(.2,.7,.2,1);
}
.post-card:hover::before{transform:scaleX(1)}
.post-card:hover{padding-left:34px}
.post-card .idx{
  font-family:var(--mono);font-size:.78rem;color:var(--muted);letter-spacing:.06em;
  transition:color .3s;
}
.post-card:hover .idx{color:var(--primary)}
.post-card .pc-main{min-width:0}
.post-card .meta{
  display:flex;align-items:center;gap:9px;font-family:var(--mono);font-size:.7rem;
  color:var(--muted);text-transform:uppercase;letter-spacing:.14em;
}
.post-card .meta .cat{color:var(--primary);font-weight:600}
.post-card h3{
  font-size:clamp(1.14rem,2.3vw,1.5rem);font-weight:600;margin:9px 0 7px;line-height:1.26;
}
.post-card p{
  color:var(--muted);font-size:.91rem;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .more{
  flex:0 0 auto;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:var(--card);
  display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:1.05rem;
  transition:background .3s,color .3s,border-color .3s,transform .4s cubic-bezier(.2,.7,.2,1);
}
.post-card:hover .more{
  background:var(--primary);color:#fff;border-color:transparent;
  transform:rotate(-45deg) scale(1.06);
}
@media (max-width:640px){
  .post-card{grid-template-columns:1fr auto;gap:16px;padding:22px 14px}
  .post-card .idx{display:none}
  .post-card:hover{padding-left:18px}
}

/* ---------- gallery — 倾斜滚动影像墙 ---------- */
.wall-hero{
  position:relative;height:92vh;min-height:560px;overflow:hidden;
  background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;
}
/* 倾斜的多列图墙，列与列反向滚动 */
.wall{
  position:absolute;inset:-24%;z-index:0;
  display:flex;gap:16px;justify-content:center;
  transform:rotate(-9deg) scale(1.06);
  -webkit-mask-image:radial-gradient(ellipse 78% 74% at 50% 50%,#000 34%,transparent 82%);
          mask-image:radial-gradient(ellipse 78% 74% at 50% 50%,#000 34%,transparent 82%);
}
.wall-col{display:flex;flex-direction:column;gap:16px;flex:0 0 clamp(150px,15vw,240px)}
.wall-col.up  {animation:wallUp   var(--sp,52s) linear infinite}
.wall-col.down{animation:wallDown var(--sp,52s) linear infinite}
@keyframes wallUp  {from{transform:translateY(0)}      to{transform:translateY(-50%)}}
@keyframes wallDown{from{transform:translateY(-50%)}   to{transform:translateY(0)}}
.wall-tile{
  border-radius:12px;overflow:hidden;flex:0 0 auto;
  box-shadow:0 14px 40px rgba(15,23,48,.13);
  background:var(--card-2);
}
html[data-theme="dark"] .wall-tile{box-shadow:0 14px 40px rgba(0,0,0,.55)}
.wall-tile img,.wall-tile > div{width:100%;height:100%;object-fit:cover;display:block}
.wall-tile.t1{aspect-ratio:3/4}
.wall-tile.t2{aspect-ratio:1/1}
.wall-tile.t3{aspect-ratio:4/5}
.wall-tile.t4{aspect-ratio:4/3}
/* 中央柔化层，保证文字可读 */
.wall-veil{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(ellipse 54% 46% at 50% 50%,var(--bg) 8%,rgba(255,255,255,.55) 46%,transparent 72%),
    linear-gradient(180deg,var(--bg) 0%,transparent 22%,transparent 74%,var(--bg) 100%);
  backdrop-filter:blur(1.5px);
}
html[data-theme="dark"] .wall-veil{
  background:
    radial-gradient(ellipse 54% 46% at 50% 50%,var(--bg) 8%,rgba(0,0,0,.62) 46%,transparent 74%),
    linear-gradient(180deg,var(--bg) 0%,transparent 22%,transparent 74%,var(--bg) 100%);
}
.wall-content{position:relative;z-index:2;text-align:center;width:100%}
/* kicker / meta 复用全站统一的 .k 与 .hero-meta */
.wall-content h1{font-size:clamp(2.6rem,7.4vw,5.6rem);margin:0 auto 18px;max-width:900px}
.wall-content .sub{max-width:500px;margin:0 auto;color:var(--muted);font-size:1rem}
@media (max-width:760px){
  .wall-hero{height:76vh;min-height:460px}
  .wall{gap:10px}.wall-col{gap:10px;flex-basis:33vw}
}
@media (prefers-reduced-motion:reduce){
  .wall-col.up,.wall-col.down{animation:none}
}

/* 筛选条：吸顶 */
.g-filter{
  position:sticky;top:56px;z-index:40;
  background:var(--nav-bg);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid var(--line);
}
.g-filter-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:58px;overflow-x:auto}
.g-filter .g-tabs{display:flex;gap:8px;flex-shrink:0}
.g-filter .g-count{font-family:var(--mono);font-size:.72rem;color:var(--muted);letter-spacing:.1em;white-space:nowrap}

/* 密集瀑布流 */
.masonry{columns:3;column-gap:10px}
.masonry .m-item{
  break-inside:avoid;margin:0 0 10px;border-radius:10px;overflow:hidden;position:relative;cursor:pointer;
  background:var(--bg-soft);
  transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s;
}
.masonry .m-item:hover{transform:scale(1.012);box-shadow:0 18px 50px rgba(5,7,25,.26);z-index:2}
/* 未 hover 的项目轻微压暗，聚焦当前 */
.masonry.dim .m-item{filter:brightness(.62) saturate(.85);transition:filter .35s ease}
.masonry.dim .m-item:hover{filter:none}

.masonry .m-item .m-frame{position:relative;width:100%;overflow:hidden;background:var(--card-2);line-height:0}
.masonry .m-item .m-frame img{
  position:static;width:100%;height:auto;display:block;object-fit:contain;
  transition:transform .7s cubic-bezier(.2,.7,.2,1);
}
.masonry .m-item:hover .m-frame img{transform:scale(1.05)}
.masonry .m-frame:has(img){aspect-ratio:auto !important}
.masonry .m-frame:has(video){aspect-ratio:auto !important}
.masonry .m-frame video{width:100%;height:auto;display:block}

/* 视频角标 */
.m-badge{
  position:absolute;left:10px;top:10px;z-index:3;
  display:flex;align-items:center;gap:5px;padding:4px 9px;border-radius:99px;
  background:rgba(5,7,20,.62);backdrop-filter:blur(8px);
  color:#fff;font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;
}
.m-badge svg{width:9px;height:9px;fill:currentColor}

/* 比例辅助类（仅占位块需要） */
.r-square{aspect-ratio:1/1}
.r-portrait{aspect-ratio:3/4}
.r-tall{aspect-ratio:2/3}
.r-landscape{aspect-ratio:4/3}
.r-wide{aspect-ratio:16/9}

.m-ph{position:absolute;inset:0;display:flex;align-items:flex-end;padding:12px}
.m-ph .ph-label{font-size:.74rem;font-weight:600;color:rgba(15,23,48,.45)}
html[data-theme="dark"] .m-ph{filter:brightness(.45) saturate(1.1)}

/* 图注：整块渐变浮起 */
.m-cap{
  position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;
  padding:16px 16px 15px;
  background:linear-gradient(transparent 45%,rgba(5,7,20,.82));
  color:#fff;opacity:0;transition:opacity .35s ease;
}
.m-cap .t{font-size:.9rem;font-weight:600;letter-spacing:-.01em;transform:translateY(8px);transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.m-cap .s{font-size:.76rem;color:rgba(255,255,255,.68);margin-top:3px;transform:translateY(8px);transition:transform .4s cubic-bezier(.2,.7,.2,1) .04s}
.m-item:hover .m-cap{opacity:1}
.m-item:hover .m-cap .t,.m-item:hover .m-cap .s{transform:none}

@media (max-width:900px){.masonry{columns:2}}
@media (max-width:560px){
  .masonry{columns:1}
  .m-cap{opacity:1;background:linear-gradient(transparent 55%,rgba(5,7,20,.8))}
  .m-cap .t,.m-cap .s{transform:none}
}
@media (prefers-reduced-motion:reduce){
  .masonry.dim .m-item{filter:none}
}

/* ---------- work — 横向滑动作品条 hero ---------- */
.strip-hero{
  position:relative;padding:140px 0 0;overflow:hidden;background:var(--hero-bg);
}
.strip-hero .strip-head{position:relative;z-index:2;text-align:center;padding-bottom:52px}
.strip-hero h1{font-size:clamp(2.5rem,6.6vw,5rem);margin:0 auto 18px;max-width:860px}
.strip-hero .sub{max-width:520px;margin:0 auto;color:var(--muted);font-size:1rem}

/* 两条反向滚动的作品条 */
.strip{
  display:flex;gap:18px;width:max-content;padding-bottom:18px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
}
.strip-row{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.strip.left {animation:stripL 46s linear infinite}
.strip.right{animation:stripR 54s linear infinite}
.strip-row:hover .strip{animation-play-state:paused}
@keyframes stripL{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes stripR{from{transform:translateX(-50%)}to{transform:translateX(0)}}
.strip-tile{
  flex:0 0 auto;width:clamp(210px,21vw,320px);aspect-ratio:4/3;
  border-radius:14px;overflow:hidden;position:relative;
  box-shadow:0 16px 44px rgba(15,23,48,.12);
  transition:transform .4s cubic-bezier(.2,.7,.2,1);
}
html[data-theme="dark"] .strip-tile{box-shadow:0 16px 44px rgba(0,0,0,.55)}
.strip-tile:hover{transform:translateY(-8px) scale(1.03);z-index:3}
.strip-tile img,.strip-tile > div{width:100%;height:100%;object-fit:cover;display:block}
.strip-tile .st-lbl{
  position:absolute;left:0;right:0;bottom:0;padding:26px 16px 13px;
  background:linear-gradient(transparent,rgba(5,7,20,.72));
  color:#fff;font-size:.8rem;font-weight:600;
  opacity:0;transform:translateY(6px);transition:opacity .3s,transform .3s;
}
.strip-tile:hover .st-lbl{opacity:1;transform:none}
.strip-tile.tall{aspect-ratio:3/4;width:clamp(170px,16vw,240px)}
/* 底部渐隐衔接 */
.strip-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:90px;z-index:1;pointer-events:none;
  background:linear-gradient(transparent,var(--bg));
}
@media (max-width:760px){
  .strip-hero{padding-top:118px}
  .strip-hero .strip-head{padding-bottom:36px}
  .strip-tile{width:62vw}
  .strip-tile.tall{width:48vw}
}
@media (prefers-reduced-motion:reduce){
  .strip.left,.strip.right{animation:none}
}

/* ---------- immersive viewer (lightbox) ---------- */
.lightbox{
  position:fixed;inset:0;z-index:400;display:none;
  background:#05070f;
  opacity:0;transition:opacity .3s ease;
}
.lightbox.open{display:block;opacity:1}
.lightbox .lb-stage{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  padding:86px 96px 108px;
}
.lightbox .lb-inner{
  max-width:100%;max-height:100%;display:flex;align-items:center;justify-content:center;
  opacity:0;transform:scale(.965);
  transition:opacity .45s cubic-bezier(.2,.7,.2,1),transform .45s cubic-bezier(.2,.7,.2,1);
}
.lightbox.ready .lb-inner{opacity:1;transform:none}
.lightbox .lb-inner img,
.lightbox .lb-inner video{
  max-width:100%;max-height:calc(100vh - 194px);
  width:auto;height:auto;object-fit:contain;display:block;
  box-shadow:0 40px 110px rgba(0,0,0,.6);border-radius:6px;
}
.lightbox .lb-ph{width:min(900px,80vw);aspect-ratio:16/10;border-radius:6px}
.lightbox .lb-ph.r-square{aspect-ratio:1/1;width:min(680px,72vw)}
.lightbox .lb-ph.r-portrait{aspect-ratio:3/4;width:min(600px,66vw)}
.lightbox .lb-ph.r-tall{aspect-ratio:2/3;width:min(540px,62vw)}
.lightbox .lb-ph.r-landscape{aspect-ratio:4/3;width:min(880px,80vw)}
.lightbox .lb-ph.r-wide{aspect-ratio:16/9;width:min(1100px,86vw)}

/* 顶部信息条 */
.lightbox .lb-top{
  position:absolute;top:0;left:0;right:0;z-index:5;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;color:#fff;
  background:linear-gradient(rgba(5,7,15,.75),transparent);
}
.lightbox .lb-idx{font-family:var(--mono);font-size:.74rem;letter-spacing:.16em;color:rgba(255,255,255,.62)}
.lightbox .lb-idx b{color:#fff}
.lightbox .lb-tools{display:flex;gap:10px}
.lb-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);color:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-size:1rem;
  transition:background .2s,border-color .2s,transform .2s;
}
.lb-btn:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.42);transform:scale(1.06)}
.lb-btn svg{width:15px;height:15px;fill:currentColor}

/* 底部说明 */
.lightbox .lb-cap{
  position:absolute;bottom:0;left:0;right:0;z-index:5;
  padding:26px 26px 30px;color:#fff;text-align:center;
  background:linear-gradient(transparent,rgba(5,7,15,.8));
}
.lightbox .lb-cap .t{font-size:1.02rem;font-weight:600;letter-spacing:-.01em}
.lightbox .lb-cap .s{font-size:.85rem;color:rgba(255,255,255,.62);margin-top:5px}

/* 左右翻页 */
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);z-index:6;
  width:52px;height:52px;border-radius:50%;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.07);backdrop-filter:blur(10px);
  color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.3rem;
  transition:background .2s,transform .2s,opacity .2s;
}
.lb-nav:hover{background:rgba(255,255,255,.2);transform:translateY(-50%) scale(1.08)}
.lb-nav.prev{left:22px}
.lb-nav.next{right:22px}
.lb-nav[disabled]{opacity:.22;cursor:default}
.lb-nav[disabled]:hover{background:rgba(255,255,255,.07);transform:translateY(-50%)}

/* 底部缩略图胶片条 */
.lb-film{
  position:absolute;left:0;right:0;bottom:0;z-index:7;
  display:flex;gap:6px;padding:12px 16px;overflow-x:auto;
  background:rgba(5,7,15,.72);backdrop-filter:blur(14px);
  transform:translateY(100%);transition:transform .35s cubic-bezier(.2,.7,.2,1);
  scrollbar-width:none;
}
.lb-film::-webkit-scrollbar{display:none}
.lightbox.film .lb-film{transform:none}
.lightbox.film .lb-cap{opacity:0;pointer-events:none;transition:opacity .2s}
.lightbox.film .lb-stage{padding-bottom:130px}
.lb-thumb{
  flex:0 0 auto;width:66px;height:46px;border-radius:5px;overflow:hidden;cursor:pointer;
  opacity:.42;border:1.5px solid transparent;transition:opacity .2s,border-color .2s;
}
.lb-thumb img{width:100%;height:100%;object-fit:cover}
.lb-thumb:hover{opacity:.8}
.lb-thumb.on{opacity:1;border-color:#fff}

@media (max-width:700px){
  .lightbox .lb-stage{padding:74px 16px 96px}
  .lb-nav{width:44px;height:44px}
  .lb-nav.prev{left:8px}.lb-nav.next{right:8px}
  .lightbox .lb-inner img,.lightbox .lb-inner video{max-height:calc(100vh - 176px)}
}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:56px;align-items:start}
.portrait{padding:28px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);text-align:center;box-shadow:var(--shadow-sm)}
.avatar{
  width:104px;height:104px;margin:0 auto 18px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--sec));display:flex;align-items:center;justify-content:center;
  font-size:2rem;font-weight:700;color:#fff;box-shadow:0 12px 30px rgba(0,33,249,.28);
}
.portrait h3{font-size:1.24rem;font-weight:600}
.portrait .role{color:var(--muted);font-size:.9rem;margin-top:3px}
.portrait .social{display:flex;justify-content:center;gap:10px;margin-top:20px}
.portrait .social a{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:600;color:var(--muted);transition:.2s;
}
.portrait .social a:hover{background:var(--primary);color:#fff;border-color:transparent;transform:translateY(-2px)}
.about-text p{color:var(--muted);margin-bottom:16px}
.about-text .hl{color:var(--text);font-weight:600}
.currently{
  margin-top:26px;padding:20px 24px;border-radius:16px;background:var(--card);
  border:1px solid var(--line);border-left:3px solid var(--primary);
}
.currently .lbl{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--primary);margin-bottom:6px;font-weight:600}
.currently p{color:var(--text);font-size:.95rem;margin:0}

/* skills */
.skill-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:20px}
.skill-card{padding:28px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);transition:transform .25s,box-shadow .25s,border-color .25s}
.skill-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--primary)}
.skill-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:1.15rem;font-weight:700;margin-bottom:16px;
}
.skill-card h4{font-size:1.02rem;font-weight:600;margin-bottom:8px}
.skill-card p{color:var(--muted);font-size:.87rem}

/* ---------- contact ---------- */
.contact-wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:start}
.contact-card{padding:34px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.contact-card h2{font-size:1.5rem;font-weight:700;margin-bottom:12px}
.contact-card p{color:var(--muted);font-size:.95rem;margin-bottom:22px}
.contact-lines{display:flex;flex-direction:column;gap:14px;margin-bottom:24px}
.contact-lines .line{display:flex;align-items:center;gap:12px;font-size:.95rem}
.contact-lines .ic{width:36px;height:36px;border-radius:10px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700}
.form{display:flex;flex-direction:column;gap:14px}
.form label{font-size:.8rem;font-weight:600;color:var(--muted)}
.form input,.form textarea{
  width:100%;padding:13px 16px;border-radius:12px;border:1px solid var(--line);
  background:var(--bg-soft);color:var(--text);font-family:var(--font);font-size:.95rem;outline:none;transition:border-color .2s,box-shadow .2s;
}
.form input:focus,.form textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.form textarea{min-height:130px;resize:vertical}
.form .btn{align-self:flex-start;border:0}


/* ---------- article (post detail) ---------- */
.article{max-width:720px;padding-top:150px;padding-bottom:110px;position:relative}
.art-loading{color:var(--muted);padding:60px 0;text-align:center}
/* 返回：与全站圆形箭头语言一致（反向） */
.art-back{
  display:inline-flex;align-items:center;gap:12px;margin-bottom:34px;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  font-weight:600;color:var(--primary);
}
.art-back::before{
  content:"\2190";width:34px;height:34px;border-radius:50%;border:1px solid var(--primary);
  display:flex;align-items:center;justify-content:center;font-family:var(--font);font-size:1rem;
  transition:background .3s,color .3s,transform .35s cubic-bezier(.2,.7,.2,1);
}
.art-back:hover::before{background:var(--primary);color:#fff;transform:translateX(-3px)}
.art-meta{
  display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:.7rem;
  color:var(--muted);text-transform:uppercase;letter-spacing:.14em;margin-bottom:14px;
}
.art-meta .cat{color:var(--primary);font-weight:600}
.article h1{font-size:clamp(1.9rem,4.4vw,2.9rem);margin:0 0 18px;text-align:left;max-width:none}
.art-excerpt{font-size:1.1rem;color:var(--muted);margin-bottom:34px;padding-bottom:30px;border-bottom:1px solid var(--line)}
.art-body{font-size:1.04rem;line-height:1.8}
.art-body h2{font-size:1.35rem;font-weight:600;margin:2em 0 .6em}
.art-body h3{font-size:1.12rem;font-weight:600;margin:1.7em 0 .5em}
.art-body p{margin:1.1em 0;color:var(--text)}
.art-body ul{margin:1.1em 0 1.1em 1.3em;color:var(--text)}
.art-body li{margin:.4em 0}
.art-body strong{font-weight:600}
.art-body code{font-family:var(--mono);font-size:.9em;background:var(--bg-soft);border:1px solid var(--line);border-radius:6px;padding:2px 6px}
.art-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:60px;padding-top:34px;border-top:1px solid var(--line)}
.art-nav a{
  display:block;padding:20px 22px;border-radius:14px;border:1px solid var(--line);
  background:var(--card);font-size:.95rem;font-weight:600;color:var(--text);max-width:none;
  transition:border-color .3s,transform .3s cubic-bezier(.2,.7,.2,1),background .3s;
}
.art-nav a:hover{border-color:var(--primary);transform:translateY(-3px);background:var(--primary-soft)}
.art-nav .lbl{display:block;font-family:var(--mono);font-size:.66rem;color:var(--primary);text-transform:uppercase;letter-spacing:.16em;margin-bottom:7px}
@media (max-width:560px){.art-nav{grid-template-columns:1fr}}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:30px 0;margin-top:30px}
.foot{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:.84rem}
.foot .mono{font-family:var(--mono);font-size:.76rem}
.foot a.mono:hover{color:var(--primary)}

/* ---------- back to top ---------- */
.back-top{
  position:fixed;right:26px;bottom:26px;z-index:150;width:42px;height:42px;border-radius:50%;border:1px solid var(--line);
  background:var(--card);color:var(--text);display:flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:var(--shadow-md);opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,background .2s ease,color .2s ease;
}
.back-top.show{opacity:1;transform:none;pointer-events:auto}
.back-top:hover{background:var(--primary);color:#fff;border-color:transparent;transform:translateY(-2px)}
.back-top svg{width:17px;height:17px;fill:currentColor}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.visible{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .nav-links{display:none}
  .burger{display:block}
  .about-grid,.contact-wrap{grid-template-columns:1fr}
  .hv-body{grid-template-columns:1fr}
  .hv-side{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}

/* ---------- admin draft notice (only shows when localStorage has drafts) ---------- */
.draft-tip{
  max-width:840px;margin:0 auto 26px;padding:13px 18px;border-radius:12px;
  background:var(--primary-soft);border:1px solid rgba(0,33,249,.18);
  color:var(--text);font-size:.85rem;line-height:1.6;
}
.draft-tip a{color:var(--primary);font-weight:600;text-decoration:underline}
html[data-theme="dark"] .draft-tip{border-color:rgba(92,138,255,.3)}