/* ============================================
   冉思达 · SIDA RAN 个人作品集
   Bento 网格风格 · 双语
   ============================================ */
*{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#eef0f2;
  --card:#ffffff;
  --ink:#14181c;
  --ink-2:#3c454b;
  --ink-3:#5d686f;
  --ink-4:#8b959c;
  --ink-5:#a8b1b7;
  --line:#e5e8ea;
  --line-2:#f0f2f4;
  --accent:#2f7c8f;
  --dark:#14181c;
  --r:16px;
  --shadow:0 1px 2px rgba(20,24,28,.04);
  --shadow-h:0 4px 16px rgba(20,24,28,.09);
}

html{scroll-behavior:smooth}
body{
  font-family:-apple-system,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);
  -webkit-font-smoothing:antialiased;
  display:flex;min-height:100vh;
}
a{color:inherit}
img{display:block;max-width:100%}

/* ---------- 侧栏 ---------- */
aside{
  width:236px;flex:none;padding:30px 24px;
  position:sticky;top:0;height:100vh;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:0;
}
.side-top{display:flex;justify-content:space-between;align-items:flex-start}
.ava{width:60px;height:60px;border-radius:50%;overflow:hidden;
  background:linear-gradient(140deg,#8fa3b0,#3f5560);flex:none}
.ava img{width:100%;height:100%;object-fit:cover}
.lang{display:flex;border:1px solid #dfe4e8;border-radius:999px;overflow:hidden;font-size:10.5px;flex:none}
.lang button{
  padding:4px 10px;border:0;background:transparent;color:var(--ink-4);
  cursor:pointer;font-family:inherit;font-size:10.5px;letter-spacing:.06em
}
.lang button.on{background:var(--ink);color:#fff}
.name{font-size:16.5px;font-weight:700;margin-top:16px;letter-spacing:.02em}
.name small{display:block;font-size:10px;font-weight:400;color:var(--ink-4);letter-spacing:.14em;margin-top:5px}
.side-nav{margin-top:24px}
.side-nav a{display:block;font-size:13.5px;color:var(--ink-3);text-decoration:none;padding:8.5px 0;letter-spacing:.03em;transition:color .15s}
.side-nav a:hover{color:var(--ink)}
.side-nav a.on{color:var(--ink);font-weight:600}
.side-nav a.on::before{content:"—";margin-right:8px;color:var(--accent)}
.social{margin-top:auto}
.social h5{font-size:10px;letter-spacing:.16em;color:var(--ink-5);margin-bottom:9px}
.social a{display:flex;align-items:center;font-size:12px;color:var(--ink-3);text-decoration:none;padding:5px 0}
.social a:hover{color:var(--ink)}
.social i{width:16px;height:16px;border-radius:4px;margin-right:8px;background:#dfe4e8;flex:none;display:inline-block}
.social .xhs{background:linear-gradient(135deg,#ff5a5f,#ff2442)}
.social .wx{background:linear-gradient(135deg,#4ecb71,#07c160)}
.social .mail{background:linear-gradient(135deg,#8fa3b0,#5d686f)}
.social .li{background:linear-gradient(135deg,#5b9bd5,#0a66c2)}
.side-foot{margin-top:16px;font-size:10.5px;color:var(--ink-5);line-height:1.9;padding-top:14px;border-top:1px solid var(--line-2)}
.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#37b37a;margin-right:6px}

/* ---------- 主区 ---------- */
main{flex:1;padding:28px 30px 44px;display:grid;grid-template-columns:repeat(6,1fr);gap:13px;align-content:start;min-width:0}
.card{background:var(--card);border-radius:var(--r);padding:22px;box-shadow:var(--shadow)}
.card.pad-lg{padding:26px}
/* 动态内容容器：让子元素直接参与 main 的网格布局 */
.flat{display:contents}

/* hero */
.hero{grid-column:span 4;display:flex;flex-direction:column;justify-content:space-between;min-height:176px}
.hero h1{font-size:30px;line-height:1.26;font-weight:700;letter-spacing:-.01em}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p{margin-top:12px;font-size:13px;color:var(--ink-3);line-height:1.95;max-width:520px}
.hero .cta{margin-top:16px;display:flex;gap:10px}
.btn{display:inline-block;padding:9px 18px;border-radius:999px;background:var(--ink);color:#fff;
  font-size:12.5px;letter-spacing:.06em;text-decoration:none;border:0;cursor:pointer;font-family:inherit}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid #d8dee2}
.stat{grid-column:span 2;display:grid;grid-template-columns:1fr 1fr;gap:13px;background:transparent;padding:0;box-shadow:none}
.stat .box{background:var(--card);border-radius:var(--r);padding:18px;box-shadow:var(--shadow)}
.stat b{display:block;font-size:22px;font-weight:700}
.stat span{font-size:10.5px;color:var(--ink-4);letter-spacing:.05em}

/* 区块标题 */
.sec{grid-column:span 6;display:flex;justify-content:space-between;align-items:baseline;margin:12px 2px 0}
.sec h3{font-size:15px;letter-spacing:.04em}
.sec a{font-size:11.5px;color:var(--ink-4);text-decoration:none;letter-spacing:.06em}
.sec a:hover{color:var(--accent)}

/* 作品卡 */
.proj{grid-column:span 2;padding:0;overflow:hidden;background:#dfe3e6;transition:box-shadow .2s,transform .2s;cursor:pointer}
.proj:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
.proj .ph{height:150px;position:relative;overflow:hidden}
.proj .ph::after{content:"";position:absolute;left:16%;bottom:0;width:38%;height:62%;background:rgba(255,255,255,.2)}
.proj .ph::before{content:"";position:absolute;right:12%;bottom:0;width:22%;height:38%;background:rgba(0,0,0,.16)}
.proj .info{padding:15px 17px 17px;background:#fff}
.proj .info h4{font-size:13.5px;font-weight:650}
.proj .info p{font-size:11px;color:var(--ink-4);margin-top:5px;letter-spacing:.05em}
.proj .pill{position:absolute;left:14px;top:12px;font-size:10px;color:#fff;
  background:rgba(0,0,0,.34);padding:3px 9px;border-radius:999px;letter-spacing:.08em;backdrop-filter:blur(4px)}

/* 占位图配色 */
.q1{background:linear-gradient(150deg,#b9c6cd,#63798a)}
.q2{background:linear-gradient(200deg,#cfc7b8,#8a7f6c)}
.q3{background:linear-gradient(160deg,#c3c9c2,#6c7a6d)}
.q4{background:linear-gradient(180deg,#c8c6c2,#6f6c67)}
.q5{background:linear-gradient(210deg,#cbc4ba,#7d7263)}
.q6{background:linear-gradient(140deg,#c2c8cf,#657079)}

/* 笔记 */
.notes{grid-column:span 3}
.notes h4,.access h4,.plain h4{font-size:12.5px;letter-spacing:.08em;color:var(--ink-4);margin-bottom:12px}
.notes ul{list-style:none}
.notes li{font-size:13px;color:var(--ink-2);padding:10px 0;border-bottom:1px solid var(--line-2);
  display:flex;justify-content:space-between;gap:10px}
.notes li:last-child{border-bottom:0}
.notes li a{text-decoration:none}
.notes li a:hover{color:var(--accent)}
.notes li span{color:var(--ink-5);font-size:11px;flex:none}

/* 授权码卡片 */
.access{grid-column:span 3;background:var(--dark);color:#f2f1ec;box-shadow:none}
.access h4{color:var(--ink-4)}
.access p{font-size:12.5px;color:#a8b1b7;line-height:1.9}
.code-row{display:flex;gap:8px;margin-top:14px}
.code-row input{flex:1;min-width:0;background:#22282e;border:1px solid #2f363d;border-radius:9px;
  padding:9px 12px;color:#f2f1ec;font-size:12.5px;letter-spacing:.1em;font-family:inherit}
.code-row input:focus{outline:none;border-color:var(--accent)}
.code-row button{background:var(--accent);border:0;border-radius:9px;color:#fff;padding:0 16px;
  font-size:12.5px;letter-spacing:.06em;cursor:pointer;font-family:inherit}
.access .hint{margin-top:11px;font-size:10.5px;color:#6f757a}
.access .hint a{color:#8fb9c4}
.access .wm{margin-top:13px;padding-top:12px;border-top:1px solid #262c32;font-size:10.5px;color:#6f757a;line-height:1.8}

/* 通用内容页（关于/笔记/作品详情） */
.page{grid-column:span 6;display:grid;grid-template-columns:repeat(6,1fr);gap:13px}
.plain{background:#fff;border-radius:var(--r);padding:26px;box-shadow:var(--shadow)}
.plain h2{font-size:22px;font-weight:700;letter-spacing:-.01em;margin-bottom:14px}
.plain h3{font-size:15px;margin:20px 0 8px}
.plain p{font-size:13.5px;color:var(--ink-3);line-height:2.05}
.plain ul{margin:10px 0 0 18px}
.plain li{font-size:13.5px;color:var(--ink-3);line-height:2}
.kv{display:grid;grid-template-columns:80px 1fr;gap:8px 14px;margin-top:14px;font-size:13px}
.kv b{font-weight:600;color:var(--ink-2)}
.kv span{color:var(--ink-3)}
.tags-line{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.tags-line span{font-size:11px;color:var(--ink-3);background:#f2f4f6;padding:4px 11px;border-radius:999px;letter-spacing:.04em}

/* 作品详情大图 */
.bigph{grid-column:span 6;height:340px;border-radius:var(--r);position:relative;overflow:hidden;background:linear-gradient(160deg,#b9c6cd,#3f5560)}
.bigph::after{content:"";position:absolute;left:14%;top:12%;width:36%;height:76%;background:rgba(255,255,255,.14);transform:skewX(-7deg)}
.bigph::before{content:"";position:absolute;right:9%;bottom:0;width:26%;height:48%;background:rgba(0,0,0,.22)}
.bigph .cap{position:absolute;left:26px;bottom:22px;color:#fff;font-size:12px;letter-spacing:.06em;opacity:.9}

/* 笔记列表 */
.note-item{grid-column:span 6;background:#fff;border-radius:var(--r);padding:20px 24px;box-shadow:var(--shadow);
  display:flex;justify-content:space-between;align-items:center;gap:16px;text-decoration:none;transition:box-shadow .2s}
.note-item:hover{box-shadow:var(--shadow-h)}
.note-item h4{font-size:15px;font-weight:650}
.note-item p{font-size:12.5px;color:var(--ink-4);margin-top:6px}
.note-item .date{font-size:11.5px;color:var(--ink-5);flex:none;letter-spacing:.06em}

/* 页脚 */
footer{grid-column:span 6;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  padding:22px 4px 6px;font-size:11px;color:var(--ink-5);letter-spacing:.06em}

/* 跨列工具类（替代内联 style，方便响应式覆盖） */
.span-2{grid-column:span 2}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-6{grid-column:span 6}

/* ===== 响应式：平板 / 小屏笔记本 ===== */
@media (max-width:900px){
  body{display:block}
  aside{width:100%;height:auto;position:static;border-right:0;border-bottom:1px solid var(--line);
    flex-direction:row;align-items:center;flex-wrap:wrap;gap:14px;padding:16px 18px}
  .side-top{order:2}
  .name{margin-top:0;order:1;font-size:15px}
  .name small{display:inline;margin-left:8px;font-size:10px}
  .side-nav{order:3;width:100%;display:flex;gap:18px;margin-top:6px;overflow-x:auto;
    -webkit-overflow-scrolling:touch}
  .side-nav a{padding:6px 0;white-space:nowrap;font-size:13px}
  .social,.side-foot{display:none}
  main{padding:16px 14px 30px;gap:11px;grid-template-columns:repeat(2,1fr) !important}
  main > *, .flat > *{grid-column:span 2 !important;min-width:0}
  .page{grid-template-columns:repeat(2,1fr) !important}
  .hero{min-height:auto}
  .hero h1{font-size:25px}
  .bigph{height:200px}
}

/* ===== 响应式：手机 ===== */
@media (max-width:560px){
  main{grid-template-columns:1fr !important;gap:12px;padding:14px 13px 26px}
  main > *, .flat > *{grid-column:span 1 !important;min-width:0}
  .hero h1{font-size:22px;line-height:1.32}
  .hero p{font-size:13px;line-height:1.9}
  .hero .cta{flex-direction:column;gap:8px}
  .btn{display:block;text-align:center;padding:12px 18px;font-size:13px}
  .stat{grid-template-columns:1fr 1fr;gap:11px}
  .stat .box{padding:16px}
  .stat b{font-size:20px}
  .proj .ph{height:170px}
  .card{padding:18px}
  .card.pad-lg{padding:20px}
  .page{grid-template-columns:1fr !important}
  .kv{grid-template-columns:70px 1fr;font-size:12.5px}
  .sec{margin:10px 0 0}
  .bigph{height:180px}
  .notes li{padding:12px 0}
}