/* ============================================================
   李诗璐 · 产品与设计手记 —— 「雪原手记」视觉系统
   与红屋 3D 作品集同一套设计语言：
   雪原冷调打底 / 红屋红为唯一强调色 / 金色只用于作品与编号
   圆角 10·16·22·999 / 缓动 cubic-bezier(.65,0,.35,1)
   ============================================================ */
@font-face{font-family:Notebook;src:local('Chalkboard SE')}
@font-face{font-family:Reading;src:local('PingFang SC')}

*{box-sizing:border-box}

:root{
  /* 色彩：雪景·日光 */
  --bg:#EDF0F4;            /* 雪原 */
  --bg-sky:#E3EAF2;        /* 页首天空 */
  --surface:#FBFAF6;       /* 奶油纸面 */
  --cream:#F4F0E6;         /* 便签纸 */
  --ink:#242E39;           /* 墨 */
  --muted:#5D6976;         /* 灰蓝注 */
  --line:#D9DFE6;          /* 铅线 */
  --line-warm:#E5DECB;     /* 金线 */
  --red:#A31A17;           /* 红屋红：唯一强调色 */
  --red-deep:#7F130F;
  --gold:#A9822F;          /* 金：只用于作品与编号 */
  --gold-soft:#D4A94E;
  --tint-sand:#F6F1E5;
  --tint-sage:#ECF1E8;
  --tint-rose:#F7ECE6;
  --tint-mist:#E9EEF5;
  /* 字体 */
  --body:Reading,'PingFang SC','Hiragino Sans GB',sans-serif;
  --display:'Songti SC',STSong,serif;
  --hand:var(--body);
  /* 形状 · 动效 */
  --r:10px;--r-lg:16px;--r-xl:22px;--pill:999px;
  --shadow:0 1px 2px rgba(36,46,57,.05),0 10px 28px rgba(36,46,57,.09);
  --shadow-lift:0 2px 4px rgba(36,46,57,.06),0 18px 44px rgba(36,46,57,.15);
  --ease:cubic-bezier(.65,0,.35,1);
}

html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:linear-gradient(180deg,var(--bg-sky),var(--bg) 480px) fixed,var(--bg);color:var(--ink);font:16px/1.75 var(--body);-webkit-font-smoothing:antialiased}

button,a,input{touch-action:manipulation}
a{color:inherit}
button,input{font:inherit}
button{color:inherit;cursor:pointer}
button:disabled{cursor:default;opacity:.5}
a,button,input{outline-offset:5px}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--red);outline-offset:3px}
button{border:0;background:none}
button,a{-webkit-tap-highlight-color:transparent}
img{max-width:100%;display:block}
h1,h2,h3,h4,p{margin-top:0}
h1,h2,h3{line-height:1.35}
h1{font-family:var(--display);font-size:48px;font-weight:600;letter-spacing:.02em}
h2{font-size:32px;font-family:var(--display);font-weight:600}
h3{font-size:24px}
p{margin-bottom:24px}
small{font-size:14px}
::selection{background:rgba(163,26,23,.14)}

.skip{position:fixed;top:-80px;z-index:30;background:var(--ink);color:white;padding:16px;border-radius:0 0 var(--r) 0}
.skip:focus{top:0}

/* ---------- 页首 ---------- */
header{min-height:88px;max-width:1400px;margin:auto;padding:0 56px;display:flex;align-items:center;gap:24px;background:rgba(237,240,244,.82);backdrop-filter:blur(14px) saturate(1.15);-webkit-backdrop-filter:blur(14px) saturate(1.15);position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line)}

.brand{display:flex;align-items:center;gap:12px;text-decoration:none;white-space:nowrap;font-size:16px;font-weight:600}
.brand small{display:block;font:10px/1.6 var(--hand);letter-spacing:.16em;font-weight:400;color:var(--muted)}
.brand-mark{font:40px/1 var(--display);position:relative;width:42px}
.brand-mark span{font-size:22px;position:absolute;right:-2px;top:-8px;color:var(--red)}

nav{display:flex;margin-left:auto;gap:26px;align-items:center}
nav a{font-size:14px;text-decoration:none;white-space:nowrap;position:relative;padding:8px 2px;color:var(--muted);transition:color .15s var(--ease)}
nav a:hover{color:var(--ink)}
nav a[aria-current=page]{color:var(--red);font-weight:600}
nav a[aria-current=page]:after{content:'';position:absolute;left:0;right:0;bottom:2px;height:3px;border-radius:var(--pill);background:var(--red)}

.edit-button{padding:8px 0 8px 20px;border-left:1px solid var(--line);font-size:14px;white-space:nowrap}
.edit-button span{font-size:12px;color:var(--muted)}

/* ---------- 页缘手写边饰 ---------- */
.edge{position:fixed;top:150px;bottom:80px;width:28px;display:flex;align-items:center;justify-content:space-between;flex-direction:column;font-size:22px;pointer-events:none;color:var(--red);opacity:.4;display:none}
.edge span{writing-mode:vertical-rl;font:12px/1 var(--hand);letter-spacing:.18em;color:var(--gold)}
.edge-left{left:18px}
.edge-right{right:18px}
.edge-right span{transform:rotate(180deg)}

main{max-width:1240px;margin:0 auto;padding:48px 40px 88px;min-height:calc(100vh - 180px)}

footer{border-top:1px solid var(--line);max-width:1280px;margin:auto;padding:26px 40px;display:flex;gap:24px;justify-content:space-between;color:var(--muted);font-size:12px}
footer a{text-decoration:none}
footer button{font-size:12px}

/* ---------- 通用文字部件 ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--red);font:600 12px/1.5 var(--body);letter-spacing:.22em;text-transform:uppercase;margin-bottom:16px}
.eyebrow:before{content:'';width:22px;height:2px;border-radius:var(--pill);background:var(--red)}
.muted{color:var(--muted)}
.hand{font-family:var(--hand)}

/* ---------- 首页 ---------- */
.home-topline{display:flex;justify-content:space-between;align-items:center;margin-bottom:44px;font:14px var(--hand);color:var(--muted);letter-spacing:.08em}
.home-topline span:last-child{border-bottom:1px solid var(--line-warm);padding-bottom:4px;color:var(--gold)}

.home-grid{display:grid;grid-template-columns:.93fr 1.15fr;gap:64px;align-items:center}

.profile{position:relative}
.profile h1{font-size:42px;margin-bottom:32px}
.profile h1 span{position:relative;white-space:nowrap}
.profile h1 span:after{content:'';position:absolute;bottom:-4px;left:0;right:0;height:3px;border-radius:2px;background:var(--red);opacity:.9}

.profile-inner{display:grid;grid-template-columns:180px 1fr;gap:24px;align-items:center}

.photo-paper{background:var(--surface);padding:10px 10px 22px;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);position:relative;transition:transform .6s var(--ease),box-shadow .6s var(--ease)}
.photo-paper:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.photo-paper:before{content:'';position:absolute;inset:0;border-radius:var(--r);box-shadow:inset 0 0 0 1px rgba(212,169,78,.18);pointer-events:none}
.photo-paper img{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:center}
.photo-paper figcaption{font:18px var(--hand);text-align:center;margin-top:10px}

.profile figure{margin:0}

.profile-facts{font-size:14px}
.profile-facts b{font-size:16px;font-weight:600;display:block}
.profile-facts p{margin-bottom:16px;line-height:1.7}
.profile-facts .edu{border-bottom:1px solid var(--line);padding-bottom:12px}

.intro-copy{margin-top:32px;font-size:15px;color:var(--muted);max-width:430px;line-height:1.9}
.intro-copy strong{color:var(--ink);font-weight:600}

.profile-tags,.tags{display:flex;gap:8px;flex-wrap:wrap}
.tag{border:1px solid var(--line);border-radius:var(--pill);padding:2px 12px;font-size:12px;background:var(--surface);white-space:nowrap;color:var(--muted)}

.profile-note{font-size:14px;letter-spacing:.06em;color:var(--red);margin-top:22px}
.profile-note svg{display:none}

.index-wrap{position:relative}
.index-label{font:600 13px var(--body);position:absolute;right:12px;top:-34px;letter-spacing:.14em;color:var(--gold)}

.module-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}

.module-card{border:1px solid rgba(36,46,57,.12);border-radius:var(--r-lg);padding:26px 26px 20px;min-height:235px;text-decoration:none;display:flex;flex-direction:column;position:relative;box-shadow:var(--shadow);transition:transform .6s var(--ease),box-shadow .6s var(--ease),border-color .6s var(--ease);isolation:isolate;background:var(--surface);overflow:hidden}
.module-card:before{counter-increment:chapter;content:'0' counter(chapter);position:absolute;top:22px;right:24px;font:600 13px/1 var(--body);letter-spacing:.12em;color:var(--gold)}
.module-grid{counter-reset:chapter}
.module-card:after{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--gold-soft);opacity:0;transition:opacity .6s var(--ease)}
.module-card:nth-child(1){background:linear-gradient(160deg,var(--tint-sand),var(--surface) 62%)}
.module-card:nth-child(2){background:linear-gradient(160deg,var(--tint-sage),var(--surface) 62%)}
.module-card:nth-child(3){background:linear-gradient(160deg,var(--tint-rose),var(--surface) 62%)}
.module-card:nth-child(4){background:linear-gradient(160deg,var(--tint-mist),var(--surface) 62%)}
.module-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lift);border-color:rgba(163,26,23,.35)}
.module-card:hover:after{opacity:1}
.module-card:active{transform:translateY(-2px)}

.module-card h2{font:600 22px var(--body);margin:10px 0 8px;letter-spacing:.01em}
.module-card p{font-size:12px;color:var(--muted);margin:0;line-height:1.8}
.module-card .arrow{position:absolute;right:22px;bottom:14px;font:24px var(--hand);color:var(--muted);transition:transform .6s var(--ease),color .6s var(--ease)}
.module-card:hover .arrow{transform:translate(3px,-3px);color:var(--red)}
.module-card .module-en{font:600 10px var(--body);letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-top:auto;padding-top:16px}

.card-art{height:72px;display:flex;align-items:center}
.card-art svg{height:76px;width:150px;overflow:visible}
.card-art img{height:72px;width:auto;max-width:150px;object-fit:contain;mix-blend-mode:multiply}

.home-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:64px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.home-bottom .hand{font-size:18px;color:var(--red)}

/* ---------- 面包屑 · 页头 ---------- */
.breadcrumb{display:flex;gap:12px;align-items:center;font-size:13px;margin-bottom:40px;color:var(--muted)}
.breadcrumb a{text-decoration:none}
.breadcrumb a:hover{color:var(--red)}

.page-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;padding-bottom:32px;margin-bottom:44px;border-bottom:1px solid var(--line)}
.page-heading h1{margin:0 0 12px}
.page-heading p{margin:0;max-width:650px;color:var(--muted)}
.page-heading .corner-note{font-size:12px;letter-spacing:.14em;white-space:nowrap;padding:8px 14px;background:var(--tint-sand);border:1px solid var(--line-warm);border-radius:var(--pill);color:var(--gold)}

/* ---------- 实习经历 ---------- */
.intern-layout{display:grid;grid-template-columns:180px 1fr;gap:64px}

.side-index{align-self:start;position:sticky;top:130px;display:flex;flex-direction:column;gap:16px;font-size:13px}
.side-index a{color:var(--muted);text-decoration:none;transition:color .15s var(--ease)}
.side-index a:hover{color:var(--red)}
.side-index strong{font-size:12px;font-weight:600;letter-spacing:.18em;color:var(--gold);text-transform:uppercase}

.experience{margin:0 0 60px;padding-bottom:52px;border-bottom:1px solid var(--line);scroll-margin-top:130px}
.experience-top{display:flex;gap:20px;align-items:center}

.company-mark{width:52px;height:52px;display:grid;place-items:center;border-radius:var(--r-lg);border:1px solid var(--line-warm);background:var(--cream);font:24px var(--display);flex-shrink:0;color:var(--red)}

.experience h2{font-family:var(--body);font-size:24px;margin:0 0 4px;font-weight:600}
.experience .role{font-size:14px;color:var(--muted)}
.experience time{font-size:13px;margin-left:auto;white-space:nowrap;color:var(--muted);font-variant-numeric:tabular-nums}

.experience-summary{margin:26px 0;font-size:16px;color:var(--muted);line-height:1.9;max-width:780px}

.resume-item{margin-bottom:22px;padding-left:18px;border-left:2px solid var(--line-warm)}
.resume-item h3{font-family:var(--body);font-size:16px;margin:0 0 6px;font-weight:600}
.resume-item p{font-size:15px;margin:0;color:var(--muted);line-height:1.9}

.note{border-left:2px solid var(--red);background:rgba(163,26,23,.045);border-radius:0 var(--r) var(--r) 0;padding:16px 20px;color:var(--muted);font-size:13px;line-height:1.8}

/* ---------- Vibe Coding 目录 ---------- */
.project-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}

.project-card{border:1px solid rgba(36,46,57,.12);background:var(--surface);text-decoration:none;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);transition:transform .6s var(--ease),box-shadow .6s var(--ease),border-color .6s var(--ease)}
.project-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lift);border-color:rgba(163,26,23,.35)}

.project-preview{height:300px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:32px}
.project-preview.peach{background:linear-gradient(160deg,var(--tint-rose),#FDF6F2)}
.project-preview.sage{background:linear-gradient(160deg,var(--tint-sage),#F7FAF4)}

.project-preview .phone{height:290px;width:170px;object-fit:cover;object-position:top;border:6px solid #fff;border-radius:18px;box-shadow:0 16px 36px rgba(36,46,57,.18);transition:transform .6s var(--ease)}
.project-card:hover .phone{transform:translateY(-6px)}
.project-preview .desktop{width:95%;border:6px solid white;border-radius:6px;box-shadow:0 16px 36px rgba(36,46,57,.16);max-height:230px;object-fit:cover;object-position:top;transition:transform .6s var(--ease)}
.project-card:hover .desktop{transform:translateY(-5px)}

.project-preview .scribble{display:none}
.project-preview .cat-small{position:absolute;width:100px;right:24px;bottom:24px;mix-blend-mode:multiply}

.project-card-body{padding:28px 32px 32px}
.project-card-body h2{font-family:var(--body);font-size:24px;margin-bottom:12px;display:flex;justify-content:space-between;font-weight:600}
.project-card-body h2 span{color:var(--muted);font-weight:400;transition:transform .6s var(--ease),color .6s var(--ease)}
.project-card:hover .project-card-body h2 span{transform:translate(3px,-3px);color:var(--red)}
.project-card-body p{font-size:14px;color:var(--muted);margin-bottom:20px}
.project-card-body .tags{margin-bottom:16px}

.project-footer{font-size:12px;color:var(--muted);display:flex;justify-content:space-between}
.project-footer span:last-child{color:var(--red)}

/* ---------- 案例页通用 ---------- */
.case-hero{display:grid;grid-template-columns:1fr 380px;gap:48px;align-items:center;margin-bottom:48px}
.case-hero h1{font-size:48px;margin-bottom:16px}
.case-hero .tagline{font:24px/1.6 var(--display);margin-bottom:20px}
.case-hero .lead{color:var(--muted);font-size:16px}

.case-cover{height:350px;background:var(--tint-rose);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;display:flex;justify-content:center;align-items:center;position:relative}
.case-cover.sage{background:var(--tint-sage)}
.case-cover img{max-height:100%;object-fit:contain;border:5px solid white;border-radius:4px}
.case-cover .paper-pin{display:none}

/* ---------- 按钮 ---------- */
.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;text-decoration:none;border:1px solid var(--ink);padding:9px 18px;border-radius:var(--pill);font-size:14px;min-height:44px;background:var(--surface);transition:transform .15s var(--ease),background .15s var(--ease),border-color .15s var(--ease),color .15s var(--ease)}
.button:hover{transform:translateY(-2px);background:var(--cream);border-color:var(--red);color:var(--red)}
.button.primary{background:var(--red);border-color:var(--red);color:#fff}
.button.primary:hover{background:var(--red-deep);border-color:var(--red-deep);color:#fff}
.button.small{padding:5px 14px;font-size:12px;min-height:36px}
.actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 案例结构部件 ---------- */
.case-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;border-block:1px solid var(--line);padding:24px 0;margin-bottom:48px}
.case-meta dt{font-size:12px;color:var(--muted);margin-bottom:8px;letter-spacing:.08em}
.case-meta dd{margin:0;font-size:14px}

.case-layout{display:grid;grid-template-columns:168px 1fr;gap:56px}

.case-section{scroll-margin-top:130px;margin-bottom:64px}
.case-section h2{font-size:28px;margin-bottom:24px}
.case-section p{font-size:16px;line-height:1.9}
.case-section h3{font-size:18px;margin-bottom:12px}

.insight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:32px 0}
.insight{padding-top:16px;border-top:2px solid var(--gold-soft)}
.insight h3{font-size:16px}
.insight p{font-size:14px;color:var(--muted);margin:0}

.flow{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0 32px}
.flow span{border:1px solid var(--line);padding:10px 14px;border-radius:var(--r);background:var(--surface);font-size:13px}
.flow i{font-style:normal;align-self:center;font-size:16px;color:var(--gold)}

.decision{padding:20px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:210px 1fr;gap:24px}
.decision h3{font-size:16px;margin:0}
.decision p{font-size:14px;color:var(--muted);margin:0}

.deliverables{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.deliverable{background:var(--cream);padding:20px;border:1px solid var(--line-warm);border-radius:var(--r);min-height:120px}
.deliverable h3{font-size:16px}
.deliverable p{font-size:13px;color:var(--muted);margin:0}

.gallery{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.gallery .figure:first-child:last-child{grid-column:1/-1}

/* ---------- 图片呈现：装裱感 ---------- */
.figure{margin:0;min-width:0}
.figure button{padding:0;border:1px solid var(--line);background:white;display:block;width:100%;overflow:hidden;position:relative}
.figure button:after{content:'↗ 放大查看';position:absolute;right:8px;bottom:8px;background:var(--surface);padding:2px 8px;font-size:11px;color:var(--ink);border:1px solid var(--line)}
.figure img{width:100%;max-height:440px;object-fit:contain;object-position:top}
.figure>img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:10px;box-shadow:var(--shadow)}
.figure figcaption{font-size:12px;color:var(--muted);padding-top:10px}
.figure figcaption strong{display:block;color:var(--ink);font-size:14px;font-weight:600}

.badcases{display:grid;grid-template-columns:1fr 1fr;gap:24px;border:1px solid var(--line);border-radius:var(--r);padding:24px;margin:24px 0}
.badcases h3{font-size:15px}
.badcases p{font-size:14px;margin:0;color:var(--muted)}

.planned{display:inline-block;font-size:12px;padding:2px 10px;background:var(--cream);border:1px solid var(--line-warm);border-radius:var(--pill);margin-left:12px;vertical-align:middle;font-family:var(--body);font-weight:400;color:var(--gold)}

.market-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.market-step{padding-top:16px;border-top:1px solid var(--ink)}
.market-step h3{font-size:16px}
.market-step p{font-size:14px;color:var(--muted)}

.metrics{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.metrics span{font-size:12px;border:1px solid var(--line);border-radius:var(--pill);padding:6px 12px;background:var(--surface)}

.case-next{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;font-size:14px}
.case-next a{text-decoration:none}
.case-next a:hover{color:var(--red)}

/* ---------- 标签页 ---------- */
.tab-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:32px}
.tab-bar button{border:1px solid var(--line);border-radius:var(--pill);padding:7px 20px;font-size:14px;background:var(--surface);color:var(--muted);transition:all .15s var(--ease)}
.tab-bar button:hover{color:var(--red);border-color:rgba(163,26,23,.4)}
.tab-bar button[aria-selected=true]{background:var(--ink);color:white;border-color:var(--ink)}

.aigc-section{scroll-margin-top:120px;margin-bottom:64px}

.aigc-intro{display:flex;align-items:flex-start;justify-content:space-between;gap:48px;margin-bottom:32px}
.aigc-intro h2{font-family:var(--body);font-size:28px;font-weight:600}
.aigc-intro p{max-width:730px;color:var(--muted)}

.subheading{font:600 13px/1.6 var(--body);letter-spacing:.2em;text-transform:uppercase;color:var(--gold);display:flex;gap:16px;align-items:center;margin:44px 0 20px}
.subheading:after{content:'';height:1px;background:var(--line-warm);flex:1}

.workflow-display{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:start}
.workflow-text ol{padding-left:22px;margin:0}
.workflow-text li{font-size:14px;margin-bottom:14px;color:var(--muted)}
.workflow-text b{color:var(--ink);font-weight:600}

/* ---------- 长卷 ---------- */
.scroll-tabs{display:flex;gap:24px;border-bottom:1px solid var(--line);margin:24px 0}
.scroll-tabs button{padding:10px 0;font-size:14px;color:var(--muted);position:relative;transition:color .15s var(--ease)}
.scroll-tabs button:hover{color:var(--ink)}
.scroll-tabs button[aria-selected=true]{color:var(--red);font-weight:600}
.scroll-tabs button[aria-selected=true]:after{content:'';position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:var(--pill);background:var(--red)}

.scroll-stage{border:1px solid var(--line);background:var(--surface);border-radius:var(--r-lg);padding:24px;margin:24px 0 16px;overflow:hidden;box-shadow:var(--shadow)}
.scroll-viewport{overflow-x:auto;cursor:grab;scrollbar-color:var(--gold-soft) var(--cream);scrollbar-width:thin;padding-bottom:18px}
.scroll-viewport img{height:260px;width:auto;max-width:none;display:block;border-radius:4px}
.scroll-caption{display:flex;justify-content:space-between;gap:20px;margin-top:16px;font-size:12px;color:var(--muted)}

.reflection{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px}
.reflection article{padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r)}
.reflection h3{font-size:16px}
.reflection p{font-size:14px;color:var(--muted);margin:0}

.empty-asset{background:var(--cream);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px;color:var(--muted)}
.empty-asset .empty-symbol{font:36px var(--hand);color:var(--gold)}
.empty-asset p{font-size:13px;margin:0;max-width:420px}

.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}
.compare figure{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.compare img{height:280px;max-width:100%;margin:auto;object-fit:contain}
.compare figcaption{font-size:13px;color:var(--muted);padding-top:16px}

/* ---------- PDF 作品集页 ---------- */
.pdf-layout{display:grid;grid-template-columns:340px 1fr;gap:80px;align-items:center;padding:16px 40px 40px}

.pdf-book{aspect-ratio:3/4;background:linear-gradient(155deg,var(--cream),#EFE9DA);border:1px solid var(--line-warm);border-radius:4px var(--r) var(--r) 4px;box-shadow:var(--shadow-lift);padding:36px 32px;display:flex;flex-direction:column;position:relative;transition:transform .6s var(--ease)}
.pdf-book:hover{transform:translateY(-4px)}
.pdf-book:before{content:'';position:absolute;left:12px;top:0;bottom:0;border-left:1px solid rgba(169,130,47,.4)}
.pdf-book span{font:600 12px/1.6 var(--body);letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}
.pdf-book h2{font-family:var(--display);font-size:32px;line-height:1.7;margin:32px 0;font-weight:600}
.pdf-book svg{width:150px;height:120px;margin:auto}
.pdf-book small{font:14px var(--hand);text-align:right}

.pdf-copy h2{font-family:var(--body);font-size:28px;font-weight:600}
.pdf-copy>p{color:var(--muted)}

.file-name{font-size:14px;overflow-wrap:anywhere;margin:20px 0;color:var(--red)}

.reader-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:16px}

.pdf-frame{width:100%;height:78vh;border:1px solid var(--line);border-radius:var(--r);background:#E7EAEE}

.not-found{padding:80px 0;text-align:center}
.not-found p{color:var(--muted)}

/* ---------- 对话框 · 提示 ---------- */
dialog{border:1px solid var(--line);border-radius:var(--r-xl);background:var(--surface);color:var(--ink);max-height:92vh;padding:24px;box-shadow:var(--shadow-lift)}
dialog::backdrop{background:rgba(30,38,48,.45);backdrop-filter:blur(6px)}

#lightbox{width:min(1300px,94vw)}
.lightbox-head{display:flex;justify-content:space-between;gap:24px;margin-bottom:20px;font-size:14px}
.lightbox-head button{white-space:nowrap}
#lightbox-image{max-height:75vh;max-width:100%;width:auto;margin:auto;object-fit:contain}
#lightbox>p{text-align:center;font-size:12px;color:var(--muted);margin:16px 0 0}

#editor{width:min(620px,94vw);padding:32px}
.editor-head{display:flex;justify-content:space-between;align-items:flex-start}
.editor-head h2{font-size:26px;margin:0 0 20px;font-family:var(--body);font-weight:600}
.editor-head button{font-size:26px;line-height:1}
.editor-head .eyebrow{margin-bottom:8px}
#editor>p{font-size:13px;color:var(--muted)}
.editor-row{padding:16px 0;border-top:1px solid var(--line)}
.editor-row label{display:block;font-size:14px;margin-bottom:8px}
.editor-row input{max-width:100%;font-size:12px}
.editor-row small{display:block;color:var(--muted);margin-top:6px}
.editor-row button{font-size:12px;text-decoration:underline;margin-top:6px}

.toast{position:fixed;bottom:30px;left:50%;transform:translate(-50%,20px);z-index:50;background:var(--ink);color:white;padding:12px 24px;border-radius:var(--pill);font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease);max-width:90vw}
.toast.visible{opacity:1;transform:translate(-50%,0)}

.page-enter{animation:pageIn .5s var(--ease)}
@keyframes pageIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* ---------- PDF 阅读器 ---------- */
.pdf-viewer{background:#E8EBEF;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.pdf-controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:16px;background:var(--surface);border-bottom:1px solid var(--line)}
#pdf-page-count{font-size:13px;margin-right:auto}
#pdf-canvas-wrap{overflow:auto;max-height:78vh;min-height:240px;padding:16px;text-align:center}
#pdf-canvas{display:block;margin:auto;background:white;max-width:none}
#pdf-read-status{font-size:13px;color:var(--muted);margin:0;padding:8px 16px}

h1,h2,h3{text-wrap:balance}
main:focus{outline:none}

/* ---------- 连续阅读式案例页 ---------- */
.ppt-case{--case-accent:var(--red);--case-ink:var(--ink);color:var(--ink);max-width:1080px;margin:auto}
.ppt-case-head{position:static;display:flex;justify-content:space-between;align-items:center;gap:32px;background:none;border:0;padding:12px 0 36px;margin-bottom:16px}
.ppt-case h1{font-size:clamp(36px,5vw,60px);margin:0 0 16px;color:var(--case-accent)}
.ppt-case h2{font-size:24px;margin:0 0 18px;font-family:var(--body);font-weight:600;color:var(--ink)}
.ppt-case h3{font-size:18px;margin:0 0 8px}
.ppt-case p,.ppt-case li{font-size:16px;line-height:1.9}
.ppt-case section{margin-bottom:40px}
.ppt-case .button.primary{background:var(--case-accent);white-space:nowrap}
.ppt-case small{font-size:13px;font-weight:400;color:var(--muted)}
.ppt-two-col{display:grid;grid-template-columns:1fr 1.12fr;gap:64px;align-items:center}
.ppt-two-col figure{margin:0}
.ppt-two-col img{width:100%;height:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:10px;box-shadow:var(--shadow)}
.drawing{padding-top:32px;margin-top:48px}
.ppt-lead{max-width:760px;font-size:20px!important;line-height:1.9}
.ppt-role{color:var(--muted);margin-bottom:56px}

.ppt-flow{display:flex;flex-wrap:wrap;padding:0;gap:28px 36px;counter-reset:steps;margin:28px 0 48px}
.ppt-flow li{flex:1 1 220px;list-style:none;counter-increment:steps;position:relative;padding-left:28px}
.ppt-flow li:before{content:counter(steps,decimal-leading-zero);position:absolute;left:0;top:0;color:var(--gold);font-size:15px;font-weight:600;letter-spacing:.06em}
.ppt-flow p{margin:0;color:var(--muted)}

.ppt-judgments{display:flex;gap:36px;margin:16px 0 64px!important}
.ppt-judgments>div{flex:1;padding:20px;background:var(--cream);border:1px solid var(--line-warm);border-radius:var(--r)}
.ppt-judgments h3{color:var(--red)}
.ppt-quality{max-width:850px}
.ppt-quality>h2:not(:first-child){margin-top:56px}
.ppt-rubric{display:flex;flex-wrap:wrap;gap:12px 32px;margin:24px 0}
.ppt-rubric p{flex:1 1 150px}
.ppt-rubric b{display:block;margin-bottom:8px;color:var(--gold);font-weight:600}
.ppt-badcase{display:grid;grid-template-columns:44px 1fr;gap:20px;margin:28px 0 40px}
.ppt-badcase dt{color:var(--gold);font-weight:600}
.ppt-badcase dd{margin:0;line-height:1.9}
.ppt-evidence{color:var(--muted);border-top:1px solid var(--line);padding-top:24px}
.ppt-evidence b{color:var(--ink);margin-right:14px}

/* ---------- AIGC 长卷叙事 ---------- */
.native-workflow{max-width:1080px;margin:auto}
.workflow-intro{max-width:720px;font-size:20px;line-height:1.9;margin:0 0 56px}
.workflow-story>section{display:grid;grid-template-columns:1fr 1.15fr;gap:64px;align-items:center;margin:0 0 72px}
.workflow-story h2{font-size:26px;margin:0 0 20px;font-family:var(--body);font-weight:600}
.workflow-story p{line-height:1.9}
.workflow-story figure{margin:0}
.workflow-story img{width:100%;height:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:10px;box-shadow:var(--shadow)}
.workflow-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.workflow-parameters{font-size:14px;color:var(--muted)}
.workflow-controls{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:center}
.workflow-controls figure:first-child{grid-row:span 2}
.workflow-controls figure:first-child img{max-height:350px;object-fit:contain}
.workflow-comparison{margin:32px 0 60px}
.workflow-comparison figure{margin:0 0 24px}
.workflow-comparison img{width:100%;height:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:10px;box-shadow:var(--shadow)}

/* ---------- 长卷动态按钮 ---------- */
.scroll-caption .scroll-dynamic{color:white;background:var(--red);padding:10px 20px;border-radius:var(--pill);white-space:nowrap;text-decoration:none;font-size:13px;transition:background .15s var(--ease),transform .15s var(--ease)}
.scroll-caption{flex-wrap:wrap;gap:14px}
.scroll-caption .scroll-dynamic:hover{background:var(--red-deep);transform:translateY(-2px)}

/* ---------- 草稿编辑条（功能 UI，保持中性） ---------- */
.draft-active{padding-bottom:150px}
.draft-bar{position:fixed;bottom:0;left:0;right:0;z-index:10000;background:#fff;color:#20364a;border-top:1px solid #bccbd6;padding:12px 24px;box-shadow:0 -4px 20px #18314712;font:14px/1.5 sans-serif}
.draft-bar-top,.draft-bar-bottom{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.draft-bar-bottom{margin-top:8px}
.draft-bar button,.draft-bar a{border:1px solid #b8c7d3;background:#fff;padding:7px 12px;border-radius:5px;color:#20364a;font:inherit;cursor:pointer}
.draft-bar button:disabled{opacity:.4;cursor:default}
.draft-bar [data-draft=export]{background:#20364a;color:white}
.draft-bar [data-draft=delete]{color:#a53434}
.draft-bar #draft-status,.draft-bar #draft-tip{margin-right:auto;font-size:12px;color:#52677a}
.draft-active [contenteditable]{cursor:text;outline:1px dashed transparent;outline-offset:5px}
.draft-active [contenteditable]:hover{outline-color:#9ab3c7}
.draft-active .draft-selected{outline:2px solid #1e78ae!important;outline-offset:5px}
.draft-preview .draft-selected{outline:none!important}
body:not(.draft-active) #open-editor,body:not(.draft-active) #footer-editor{display:none}
.draft-active main [hidden]{display:none!important}
@media(max-width:700px){.draft-bar{padding:8px 12px}.draft-bar-top,.draft-bar-bottom{gap:6px}.draft-bar button,.draft-bar a{padding:5px 8px;font-size:12px}.draft-active{padding-bottom:220px}}

/* ---------- 响应式 ---------- */
@media(min-width:1500px){main{padding-top:64px}.home-grid{min-height:560px}.module-card{min-height:250px}.edge-left{left:40px}.edge-right{right:40px}}

@media(max-width:1100px){header{padding:0 32px;gap:16px}nav{gap:18px}.edit-button span{display:none}.home-grid{gap:40px}.profile-inner{grid-template-columns:155px 1fr;gap:20px}.profile h1{font-size:36px}.module-card{padding:20px;min-height:225px}.module-card h2{font-size:20px}.intern-layout{gap:40px;grid-template-columns:150px 1fr}.case-hero{grid-template-columns:1fr 320px;gap:32px}.case-layout{gap:32px;grid-template-columns:145px 1fr}.decision{grid-template-columns:165px 1fr}.pdf-layout{gap:48px;padding:16px 0;grid-template-columns:300px 1fr}.edge-left{left:6px}.edge-right{right:6px}}

@media(max-width:850px){header{height:auto;min-height:96px;flex-wrap:wrap;padding:16px 24px 0;gap:8px}.brand{font-size:14px}.brand small{font-size:9px}.brand-mark{font-size:32px;width:34px}.brand-mark span{font-size:20px}nav{order:3;margin:8px -8px 0;padding:0 8px 12px;width:calc(100% + 16px);overflow:auto;gap:24px}nav a{font-size:13px}.edit-button{margin-left:auto}main{padding:32px 24px 56px}.edge{display:none}.home-grid{grid-template-columns:1fr;gap:64px}.profile-inner{grid-template-columns:180px 1fr}.profile h1{font-size:40px}.profile-facts{font-size:15px}.intro-copy{max-width:none}.index-label{top:-34px;font-size:17px}.module-card{min-height:225px}.home-bottom{margin-top:40px}.home-bottom>span:last-child{display:none}.project-preview{height:260px}.case-hero{grid-template-columns:1fr 260px}.case-hero h1{font-size:36px}.case-hero .tagline{font-size:20px}.case-cover{height:300px}.case-meta{gap:20px}.case-layout,.intern-layout{grid-template-columns:1fr;gap:24px}.side-index{position:relative;top:0;flex-direction:row;overflow-x:auto;gap:20px;padding-bottom:12px;border-bottom:1px solid var(--line);white-space:nowrap}.side-index strong{display:none}.case-section{margin-bottom:48px}.workflow-display{grid-template-columns:1fr}.reflection{gap:16px}.reflection article{padding:16px}.pdf-layout{grid-template-columns:240px 1fr;gap:32px}.pdf-book{padding:24px}.pdf-book h2{font-size:26px}.pdf-copy h2{font-size:24px}footer{padding:24px;gap:16px}footer>span{display:none}}

@media(max-width:560px){h1{font-size:32px}h2{font-size:26px}.home-topline{font-size:12px;margin-bottom:32px}.home-topline span:last-child{font-size:11px}.profile h1{font-size:32px;margin-bottom:28px}.profile-inner{grid-template-columns:138px 1fr;gap:20px}.profile-facts{font-size:12px}.profile-facts b{font-size:14px}.profile-facts .edu{padding-bottom:8px}.profile-facts p{margin-bottom:12px}.photo-paper{padding:6px 6px 16px}.photo-paper:before{left:34px;width:60px;height:19px}.photo-paper figcaption{font-size:14px}.intro-copy{font-size:14px}.profile-tags .tag{font-size:11px;padding:2px 9px}.module-grid{gap:16px}.module-card{padding:16px;min-height:210px}.module-card h2{font-size:17px;margin-top:8px}.module-card p{font-size:11px}.module-card:before{top:18px;right:16px;font-size:11px}.module-card .module-en{font-size:10px;padding-top:12px}.module-card .arrow{font-size:22px;bottom:10px;right:14px}.card-art{height:60px}.card-art svg{width:110px;height:58px}.card-art img{height:58px}.home-bottom{font-size:11px}.home-bottom .hand{font-size:15px}.breadcrumb{margin-bottom:24px}.page-heading{display:block;padding-bottom:24px;margin-bottom:32px}.page-heading h1{font-size:34px}.page-heading p{font-size:14px}.page-heading .corner-note{display:inline-block;margin-top:20px;font-size:15px}.experience-top{gap:12px;flex-wrap:wrap}.experience h2{font-size:22px}.experience time{margin-left:64px;margin-top:-8px}.company-mark{width:48px;height:48px}.experience .role{font-size:13px}.experience-summary{font-size:15px}.resume-item p{font-size:14px}.experience{margin-bottom:36px;padding-bottom:32px}.project-grid{grid-template-columns:1fr;gap:32px}.project-preview{height:260px}.project-card-body{padding:24px}.case-hero{grid-template-columns:1fr;gap:24px}.case-hero h1{font-size:38px}.case-hero .lead{font-size:15px}.case-cover{height:280px;max-width:360px;margin:8px auto;width:100%}.case-meta{grid-template-columns:1fr;gap:16px;margin-bottom:32px}.case-meta dt{margin-bottom:4px}.case-section h2{font-size:25px}.case-section p{font-size:15px}.insight-grid,.market-steps{grid-template-columns:1fr;gap:16px}.insight p,.market-step p{font-size:14px}.decision{grid-template-columns:1fr;gap:10px}.deliverables{grid-template-columns:1fr}.gallery{grid-template-columns:1fr}.badcases{grid-template-columns:1fr;padding:20px}.aigc-intro{display:block;margin-bottom:24px}.aigc-intro h2{font-size:24px}.aigc-intro p{font-size:14px}.tab-bar{gap:8px}.tab-bar button{font-size:13px;padding:6px 14px}.scroll-tabs{gap:20px}.scroll-tabs button{font-size:13px}.scroll-stage{padding:16px}.scroll-viewport img{height:220px}.scroll-caption{font-size:11px;flex-wrap:wrap;gap:8px}.reflection{grid-template-columns:1fr}.compare{gap:12px}.compare figure{padding:12px}.compare img{height:190px}.compare figcaption{font-size:11px}.pdf-layout{grid-template-columns:1fr;gap:40px}.pdf-book{max-width:240px;width:100%;margin:0 auto}.pdf-copy{text-align:left}.pdf-copy h2{font-size:26px}.pdf-copy>p{font-size:15px}.pdf-frame{height:65vh}.reader-toolbar{flex-wrap:wrap}#editor{padding:24px}.note{font-size:12px;padding:12px 16px}footer{font-size:11px}.case-next{gap:16px;font-size:13px}dialog{padding:16px}.subheading{font-size:14px}.flow span{font-size:12px;padding:8px 10px}.case-section .note{font-size:12px}}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}