:root{
    --ink:#1a1a1a;
    --paper:#ffffff;
    --warm:#f5efe4;
    --warm-soft:#faf6ee;
    --warm-deep:#e9dcc3;
    --muted:#8a8a8a;
    --line:#ececec;
    --brand:#5b3b1a;
    --tag-en:#fff0c2;
    --tag-world:#d8efd0;
    --tag-tech:#d9d2f1;
    --tag-game:#f5d0c9;
    --max:1200px;
    --pad-x:48px;
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",serif;
    color:var(--ink);
    background:var(--paper);
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;}

  /* nav */
  nav{
    position:sticky;top:0;z-index:10;
    background:rgba(248,242,231,.40);
    backdrop-filter:saturate(135%) blur(9px);
    border-bottom:1px solid rgba(255,255,255,.22);
  }
  .nav-inner{
    max-width:var(--max);margin:0 auto;
    padding:18px var(--pad-x);
    display:flex;justify-content:space-between;align-items:center;
    gap:24px;
  }
  .brand{display:flex;align-items:center;line-height:1;}
  .brand-img{height:56px;width:auto;display:block;border-radius:4px;}
  .brand-cn{font-weight:600;font-size:18px;letter-spacing:.02em;color:var(--ink);}
  .brand-en{font-family:"Noto Serif","Cambria","STIX Two Text","Latin Modern Roman",Georgia,"Times New Roman",serif;font-style:italic;font-size:12px;color:var(--brand);letter-spacing:.04em;margin-top:2px;font-feature-settings:"kern" on;}
  .nav-links{display:flex;gap:26px;font-size:14px;color:var(--ink);align-items:center;}
  .nav-links a{color:var(--ink);opacity:.78;transition:opacity .2s;}
  .nav-links a:hover{opacity:1;}
  .caret{font-size:9px;opacity:.6;margin-left:2px;}

  /* hero */
  .hero{
    min-height:76vh;
    background:url('../images/hero-bg.jpg') center/cover no-repeat;
    background-position:center 38%;
    position:relative;
    overflow:hidden;
    display:flex;align-items:center;justify-content:center;
    padding:0 var(--pad-x);
  }
  .hero-logo{
    position:relative;z-index:1;
    width:240px;height:auto;
    display:block;
    margin-top:calc(-6vh - 40px);
    margin-left:calc(-2% - 15px);
    filter:brightness(.94) saturate(.92);
  }

  /* section heads */
  section{max-width:var(--max);margin:0 auto;padding:40px var(--pad-x);}
  .section-head{
    display:flex;justify-content:space-between;align-items:flex-end;
    margin-bottom:36px;gap:24px;flex-wrap:wrap;
  }
  .section-head h2{
    font-size:32px;
    font-weight:600;
    letter-spacing:-.01em;
    margin-bottom:6px;
  }
  .section-head-left .eyebrow{
    font-size:12px;letter-spacing:.18em;text-transform:uppercase;
    color:var(--muted);margin:0;
  }
  .head-link{
    font-size:14px;color:var(--ink);opacity:.75;
    display:inline-flex;align-items:center;gap:6px;
    transition:opacity .2s;
  }
  .head-link:hover{opacity:1;}
  .arrow{display:inline-block;transition:transform .2s;}
  .head-link:hover .arrow,
  .ip-cta:hover .arrow{transform:translateX(3px);}

  /* things (IP grid) */
  .things{background:var(--paper);}
  .ip-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:22px;
  }
  .ip-card{
    background:var(--paper);
    border-radius:14px;
    overflow:hidden;
    border:1px solid var(--line);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    display:flex;flex-direction:column;
  }
  .ip-card:hover{
    transform:translateY(-4px);
    box-shadow:0 12px 30px rgba(58,42,26,.08);
    border-color:transparent;
  }
  .ip-thumb{
    aspect-ratio:4/3;
    background:linear-gradient(135deg,#d8c195 0%,#b8956a 100%);
    position:relative;
    overflow:hidden;
  }
  .thumb-1{background:url('../images/cover-en.jpg') center/cover no-repeat;}
  .thumb-2{background:url('../images/cover-ip-xiaogui.jpg') center/cover no-repeat;}
  .thumb-3{background:url('../images/cover-ip-zodiac.jpg') center/cover no-repeat;}
  .thumb-4{background:url('../images/cover-ip-azhen.jpg') center/cover no-repeat;}
  .ip-badge{
    position:absolute;left:14px;top:14px;
    background:rgba(255,255,255,.85);
    backdrop-filter:blur(8px);
    color:var(--ink);
    padding:4px 10px;
    border-radius:10px;
    font-size:11px;font-weight:500;
    letter-spacing:.04em;
  }
  .ip-card h3{
    font-size:17px;font-weight:600;margin:18px 20px 8px;
    color:var(--ink);padding:0;text-indent:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  }
  .ip-card h3 .ip-sub{
    display:inline;font-size:15px;font-weight:600;color:var(--ink);margin-left:4px;letter-spacing:.02em;
  }
  .ip-card p{
    font-size:13px;color:var(--muted);
    margin:0 20px 14px;
    line-height:1.6;
    flex:1;
  }
  .ip-cta{
    display:inline-flex;align-items:center;gap:6px;
    margin:0 20px 18px;
    font-size:13px;color:var(--ink);opacity:.7;
    transition:opacity .2s;
  }
  .ip-card:hover .ip-cta{opacity:1;}
  /* filter bar */
  .filter-bar{
    display:flex;flex-wrap:wrap;gap:10px;
    margin-bottom:32px;
  }
  .filter-btn{
    font:inherit;font-size:14px;line-height:1;
    padding:9px 18px;border-radius:999px;
    border:1px solid var(--line);
    background:var(--paper);color:var(--ink);
    cursor:pointer;
    transition:background .2s,border-color .2s,color .2s;
  }
  .filter-btn:hover{background:var(--warm-soft);}
  .filter-btn.is-active{
    background:var(--brand);color:#fff;border-color:var(--brand);
  }
  .ip-date{
    font-family:Georgia,"Times New Roman",serif;font-style:italic;
    font-size:12px;color:var(--muted);
    margin:14px 20px 0;letter-spacing:.04em;
  }


  /* notes (row list) */
  .notes-section{background:var(--paper);}
  .notes-list{
    display:flex;flex-direction:column;
    border-top:1px solid var(--line);
  }
  .note-row{
    display:grid;
    grid-template-columns:80px 1fr auto 88px;
    align-items:center;gap:24px;
    padding:24px 8px;
    border-bottom:1px solid var(--line);
    transition:background .2s;
  }
  .note-row:hover{background:var(--warm-soft);}
  .note-date{
    font-family:Georgia,"Times New Roman",serif;
    font-style:italic;
    font-size:14px;
    color:var(--muted);
    letter-spacing:.04em;
  }
  .note-body h3{
    font-size:16px;font-weight:600;
    margin-bottom:4px;
    color:var(--ink);
  }
  .note-body p{
    font-size:13px;color:var(--muted);
    margin:0;line-height:1.5;
  }
  .note-tag{
    display:inline-block;
    padding:4px 12px;
    border-radius:12px;
    font-size:12px;
    color:var(--ink);
    font-weight:500;
  }
  .tag-en{background:var(--tag-en);}
  .tag-world{background:var(--tag-world);}
  .tag-tech{background:var(--tag-tech);}
  .tag-game{background:var(--tag-game);}
  .note-thumb{
    width:88px;height:56px;
    border-radius:8px;
    background:linear-gradient(135deg,#d8c195,#b8956a);
  }
  .thumb-note-1{background:url('../images/cover-en-note.jpg') center/cover no-repeat;}
  .thumb-note-2{background:linear-gradient(135deg,#a8c4a2,#4a6741);}
  .thumb-note-3{background:linear-gradient(135deg,#e8c895,#a8744a);}
  .thumb-note-4{background:linear-gradient(135deg,#7a9a4a,#3a5a2a);}

  .thumb-game-azeroth{background:url('../images/cover-game-azeroth.jpg') center/cover no-repeat;}

  /* tag banner: 仅在指定筛选激活时显示 */
  .tag-banner{
    display:none;
    aspect-ratio:16/9;
    background-size:cover;
    background-position:center;
    border-radius:12px;
    margin:0 0 24px;
    overflow:hidden;
  }
  .tag-banner.is-visible{display:block;}

  /* collage card: 没用上的ip形象合集 */
  .ip-collage{
    aspect-ratio:4/3;
    background:url('../images/cover-ip-collage.jpg') center/cover no-repeat;
    overflow:hidden;
  }
  .ip-collage-grid{
    display:none;
  }
  .ip-collage-grid img{
    width:100%;height:100%;
    object-fit:cover;
    display:block;
  }
  .ip-collage-count{
    position:absolute;right:10px;bottom:10px;
    background:rgba(0,0,0,.55);color:#fff;
    font-size:11px;letter-spacing:.04em;
    padding:4px 9px;border-radius:999px;
    backdrop-filter:blur(6px);
  }

  /* dual-col About + Contact */
  .dual{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:60px;
    background:var(--paper);
  }
  .dual-col h2{
    font-size:32px;font-weight:600;letter-spacing:-.01em;margin-bottom:6px;
  }
  .dual-col .eyebrow{
    font-size:12px;letter-spacing:.18em;text-transform:uppercase;
    color:var(--muted);margin-bottom:24px;display:block;
  }
  .about-body{display:flex;gap:24px;align-items:flex-start;}
  .about-photo{flex-shrink:0;}
  .photo-frame{
    width:140px;height:160px;
    background:#fff;
    padding:8px 8px 24px;
    box-shadow:0 4px 14px rgba(0,0,0,.08);
    transform:rotate(-2deg);
  }
  .photo-inner{
    width:100%;height:100%;
    background:linear-gradient(180deg,#5b3b1a 0%,#8a5a30 60%,#d8a060 100%);
    position:relative;
    overflow:hidden;
  }
  .photo-inner::before{
    content:"";position:absolute;left:0;right:0;top:55%;height:45%;
    background:linear-gradient(180deg,#c08458 0%,#a06030 100%);
  }
  .photo-inner::after{
    content:"";position:absolute;left:30%;top:25%;width:30%;height:35%;
    background:radial-gradient(ellipse,#f5e0a8 0%,rgba(245,224,168,0) 70%);
    border-radius:50%;
  }
  .about-text{flex:1;}
  .about-text p{font-size:14px;color:#555;margin-bottom:12px;line-height:1.75;}
  .about-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;color:var(--ink);opacity:.75;
    margin-top:8px;
  }
  .about-link:hover{opacity:1;}
  .contact-body p{font-size:14px;color:#555;line-height:1.85;margin-bottom:28px;}
  .contact-icons{display:flex;gap:16px;}
  .contact-icon{
    width:44px;height:44px;
    border-radius:50%;
    background:var(--warm-soft);
    color:var(--ink);
    display:flex;align-items:center;justify-content:center;
    transition:background .2s,transform .2s;
  }
  .contact-icon:hover{
    background:var(--warm-deep);
    transform:translateY(-2px);
  }

  /* footer */
  footer{
    text-align:center;
    padding:48px var(--pad-x) 64px;
    color:var(--muted);
    font-size:13px;
    border-top:1px solid var(--line);
    max-width:var(--max);
    margin:0 auto;
  }
  footer p{margin:0;}
  footer .beian{margin-top:6px;font-size:12px;}
  footer .beian a{color:var(--muted);text-decoration:none;transition:color .2s;}
  footer .beian a:hover{color:var(--ink);}
  footer .beian img{height:14px;width:auto;vertical-align:-2px;margin-right:3px;}

  @media(max-width:900px){
    .ip-grid{grid-template-columns:repeat(2,1fr);}
    .dual{grid-template-columns:1fr;gap:48px;}
    .nav-links{display:none;}
    section{padding:72px 20px;}
  }
  @media(max-width:640px){
    .ip-grid{grid-template-columns:1fr;}
    .note-row{grid-template-columns:64px 1fr;gap:12px;}
    .note-tag,.note-thumb{grid-column:2;}
    .about-body{flex-direction:column;}
  }

  /* reveal */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease;}
  .reveal.in{opacity:1;transform:none;}

  /* collage lightbox */
  .lightbox{
    position:fixed;inset:0;z-index:100;
    display:none;
    align-items:center;justify-content:center;
    padding:40px var(--pad-x);
  }
  .lightbox.open{display:flex;}
  .lb-backdrop{
    position:absolute;inset:0;
    background:rgba(20,16,10,.92);
    backdrop-filter:blur(4px);
  }
  .lb-panel{
    position:relative;z-index:1;
    width:100%;max-width:1080px;max-height:88vh;
    background:var(--paper);
    border-radius:16px;
    padding:28px 28px 32px;
    overflow:hidden;
    display:flex;flex-direction:column;
    box-shadow:0 30px 80px rgba(0,0,0,.4);
  }
  .lb-close{
    position:absolute;right:18px;top:16px;z-index:2;
    width:36px;height:36px;border-radius:50%;
    border:none;background:var(--warm-deep);color:var(--ink);
    font-size:22px;line-height:1;cursor:pointer;
    display:flex;align-items:center;justify-content:center;
    transition:background .2s,transform .2s;
  }
  .lb-close:hover{background:var(--brand);color:#fff;transform:rotate(90deg);}
  .lb-title{font-size:22px;font-weight:600;margin:0 40px 4px 0;}
  .lb-sub{font-size:13px;color:var(--muted);margin:0 0 20px;}
  .lb-grid{
    overflow-y:auto;
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:8px;
    padding-right:6px;
  }
  .lb-grid img{
    width:100%;aspect-ratio:1/1;object-fit:cover;
    display:block;border-radius:8px;cursor:zoom-in;
  }
  /* 悬停完整预览浮层 */
  .lb-preview{
    position:fixed;z-index:120;
    display:none;pointer-events:none;
    background:#fff;padding:8px;border-radius:12px;
    box-shadow:0 18px 50px rgba(0,0,0,.45);
  }
  .lb-preview.show{display:block;}
  .lb-preview img{
    display:block;max-width:300px;max-height:300px;
    object-fit:contain;border-radius:6px;
  }
  @media(max-width:640px){
    .lb-grid{grid-template-columns:repeat(3,1fr);}
  }