/* ================= 主题变量（对齐 blog.xiaofa.cc · Inaline 风格） ================= */
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
:root {
  --primary: #FF7900;
  --primary-light: #FF9A40;
  --primary-dark: #E66A00;
  --primary-soft: #FFF4EA;
  --bg: #FFFFFF;              /* 卡片背景 */
  --page: #F5F5F5;            /* 页面背景 */
  --card: #FFFFFF;
  --card2: #F7F7F7;
  --line: #E0E0E0;
  --text: #333333;
  --dim: #666666;
  --muted: #999999;
  --radius: 8px;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, .05);
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, .08);
  --shadow-md: 0 6px 16px rgba(0, 0, 0, .12);
  --maxw: 1200px;
  --topbar-h: 46px;           /* 顶栏高度 */
}

html, body { margin: 0; padding: 0; }
body {
  min-height: 100vh; background: var(--page); color: var(--text); line-height: 1.6;
  overflow-x: hidden; font-size: 15px; padding-bottom: env(safe-area-inset-bottom, 0px);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, Arial, sans-serif;
}
a { color: var(--primary); }
img { -webkit-user-drag: none; border: 0; }

/* ================= 顶部栏（只挂 logo） ================= */
.topbar {
  position: sticky; top: 0; z-index: 60;
  padding-top: var(--sb, 0px);
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  transition: background .25s ease, border-color .25s ease;
}
.topbar-inner {
  max-width: var(--maxw); margin: 0 auto; height: var(--topbar-h); padding: 0 16px;
  display: flex; align-items: center;
}
.topbar .brand { display: flex; align-items: center; text-decoration: none; min-width: 0; }
.topbar .brand img { height: 20px; display: block; }
.topbar .brand:active { opacity: .85; }
/* 向下滚动后顶栏透明 */
.topbar.scrolled {
  background: transparent; border-bottom-color: transparent;
  backdrop-filter: none; -webkit-backdrop-filter: none;
}

/* ================= 布局 ================= */
.app { max-width: var(--maxw); margin: 0 auto; padding: 16px; }
.main { min-width: 0; }
section { margin-top: 26px; }
.sec {
  display: flex; align-items: center; gap: 10px; margin: 0 0 10px;
  font-size: 13px; font-weight: 600; color: var(--text);
}
.sec::before { content: ""; width: 3px; height: 14px; border-radius: 2px; background: var(--primary); }
.sec::after { content: ""; flex: 1; height: 0; border-top: 1px dashed var(--line); }

/* ================= 个人资料卡 ================= */
.hero {
  background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow-xs);
  padding: 22px 18px; text-align: center;
}
.ring { width: 92px; height: 92px; margin: 0 auto 14px; position: relative; display: grid; place-items: center; }
.ring::before {
  content: ""; position: absolute; inset: -3px; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--primary), #FFD1A8, var(--primary));
  animation: spin 8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.avatar {
  grid-area: 1 / 1; width: 88px; height: 88px; border-radius: 50%; object-fit: cover;
  background: #F0F0F0; border: 3px solid #fff; position: relative; z-index: 1;
  display: block; box-shadow: var(--shadow-xs);
}
.avatar.fb {
  display: grid; place-items: center; font-size: 34px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
}
.hero h1 { font-size: 22px; margin: 0 0 5px; color: var(--text); }
.hero .title { margin: 0 0 9px; font-size: 14px; font-weight: 600; color: var(--primary); }
.hero .bio { margin: 0 auto; max-width: 380px; font-size: 13.5px; color: var(--dim); line-height: 1.7; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 14px 0 16px; }
.chip {
  font-size: 12px; padding: 4px 11px; border-radius: 999px;
  background: var(--primary-soft); border: 1px solid #FFE0C2; color: var(--primary-dark);
}
.actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ================= 按钮 ================= */
.btn {
  font: inherit; font-size: 14px; font-weight: 500; padding: 9px 18px; border-radius: var(--radius);
  border: 1px solid var(--line); cursor: pointer; color: var(--text); background: #fff;
  text-decoration: none; text-align: center; display: inline-block; transition: .2s;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }
.btn.ghost { background: #fff; }
.btn.line { background: var(--card2); }
.btn.sm { font-size: 13px; padding: 7px 13px; }
.btn:active { transform: scale(.97); }
.btn[disabled] { opacity: .55; pointer-events: none; }

/* ================= 分段导航（普通一行，不吸顶） ================= */
.seg-wrap { margin: 16px 0 0; }
.seg {
  display: flex; gap: 6px; padding: 5px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-xs);
}
.seg button {
  flex: 1; font: inherit; font-size: 13.5px; font-weight: 500; color: var(--dim);
  background: none; border: 0; padding: 9px 6px; border-radius: 6px; cursor: pointer; transition: .2s;
}
.seg button:hover { color: var(--primary); background: var(--primary-soft); }
.seg button.on { color: #fff; background: var(--primary); }
.panel { display: none; }
.panel.on { display: block; animation: fade .3s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(8px); } }

/* ================= 卡片 / 标签 / 项目 ================= */
.card {
  background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow-xs);
  padding: 16px;
}
.about p { margin: 0 0 10px; font-size: 14px; color: var(--dim); line-height: 1.8; }
.about p:last-child { margin: 0; }
.about b { color: var(--text); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-size: 13px; padding: 6px 13px; border-radius: 6px;
  background: var(--primary-soft); border: 1px solid #FFE0C2; color: var(--primary-dark);
}
.projects { display: grid; gap: 12px; }
.project {
  display: block; position: relative; text-align: left; background: var(--bg);
  border-radius: var(--radius); box-shadow: var(--shadow-xs); padding: 16px;
  border-left: 3px solid transparent; transition: .2s;
}
.project:hover { box-shadow: var(--shadow-sm); border-left-color: var(--primary); }
.project h3 { margin: 0 0 6px; font-size: 15.5px; display: flex; gap: 8px; align-items: center; padding-right: 20px; }
.project h3 span { font-size: 16px; }
.project p { margin: 0; font-size: 13.5px; color: var(--dim); line-height: 1.7; }
.mini { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.mini span { font-size: 11.5px; padding: 2px 9px; border-radius: 999px; background: var(--card2); color: var(--dim); }
.arrow { position: absolute; right: 14px; top: 15px; color: #CCC; font-size: 14px; }
.links { display: grid; grid-template-columns: repeat(auto-fit, minmax(146px, 1fr)); gap: 10px; }
.link {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: var(--radius);
  background: var(--bg); border: 1px solid transparent; box-shadow: var(--shadow-xs);
  color: var(--text); font: inherit; font-size: 14px; text-align: left; cursor: pointer; transition: .2s;
}
.link:hover { color: var(--primary); box-shadow: var(--shadow-sm); }

/* ================= 瀑布流相册 ================= */
.masonry { column-count: 2; column-gap: 10px; }
@media (min-width: 520px) { .masonry { column-count: 3; } }
.ph {
  position: relative; break-inside: avoid; margin: 0 0 10px; border-radius: var(--radius);
  overflow: hidden; background: var(--card2); box-shadow: var(--shadow-xs); cursor: zoom-in;
}
.ph img { width: 100%; display: block; opacity: 0; transition: opacity .45s, transform .5s; }
.ph img.in { opacity: 1; }
.ph:hover img { transform: scale(1.03); }
.ph .cap {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 18px 10px 8px;
  font-size: 12px; color: #fff; background: linear-gradient(180deg, transparent, rgba(0, 0, 0, .7));
}
.ph .cap small { display: block; color: #EEEEEE; opacity: .9; }
.ph .del {
  position: absolute; right: 6px; top: 6px; width: 26px; height: 26px; border-radius: 50%;
  border: 0; background: rgba(0, 0, 0, .5); color: #fff; font-size: 13px; cursor: pointer;
}

/* ================= 灯箱 ================= */
.lightbox { position: fixed; inset: 0; z-index: 90; display: none; padding: 18px; background: rgba(0, 0, 0, .88); text-align: center; }
.lightbox.on { display: grid; align-content: center; gap: 14px; animation: fade .25s ease; }
.lightbox img { max-width: 100%; max-height: 72vh; border-radius: var(--radius); margin: 0 auto; }
.lightbox .lb-cap { color: #DDDDDD; font-size: 13px; }
.lightbox .lb-bar { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.lightbox .btn { background: rgba(255, 255, 255, .14); border-color: rgba(255, 255, 255, .3); color: #fff; }
.lightbox .btn.primary { background: var(--primary); border-color: var(--primary); }

/* ================= 说说 ================= */
.posts { display: grid; gap: 12px; }
.post { display: flex; gap: 12px; background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow-xs); padding: 16px; }
.post .pa {
  width: 40px; height: 40px; flex: none; border-radius: var(--radius); object-fit: cover;
  display: grid; place-items: center; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
}
.post .pb { flex: 1; min-width: 0; }
.post .pn { font-size: 14px; font-weight: 600; color: var(--primary); }
.post .ptx { margin: 5px 0 0; font-size: 14.5px; color: var(--text); line-height: 1.7; word-break: break-word; white-space: pre-wrap; }
.post .pimgs { display: grid; gap: 5px; margin-top: 10px; }
.post .pimgs img { width: 100%; object-fit: cover; border-radius: 6px; cursor: zoom-in; display: block; }
.pimgs.c1 { max-width: 190px; }
.pimgs.c1 img { aspect-ratio: 4 / 3; }
.pimgs.c2 { grid-template-columns: repeat(2, 1fr); max-width: 250px; }
.pimgs.c2 img { aspect-ratio: 1; }
.pimgs.c3 { grid-template-columns: repeat(3, 1fr); }
.pimgs.c3 img { aspect-ratio: 1; }
.post .pmeta { display: flex; align-items: center; gap: 14px; margin-top: 10px; font-size: 13px; color: var(--muted); }
.post .pmeta button {
  font: inherit; font-size: 13px; color: var(--muted); background: none; border: 0;
  padding: 2px 0; cursor: pointer; display: inline-flex; gap: 5px; align-items: center;
}
.post .pmeta button:hover { color: var(--primary); }
.post .pmeta button.liked { color: var(--primary); }
.post .pmeta .sp { margin-left: auto; font-size: 12px; color: var(--muted); }
.pbox { margin-top: 10px; border-radius: 6px; background: var(--card2); padding: 4px 12px; }
.pbox .row { padding: 7px 0; font-size: 13.5px; line-height: 1.65; color: var(--dim); border-top: 1px solid var(--line); }
.pbox .row:first-child { border-top: 0; }
.pbox .row b { color: var(--primary); font-weight: 600; }
.pbox .row .t { color: var(--muted); font-size: 11.5px; margin-left: 6px; }
.cmt-form { display: flex; gap: 8px; margin-top: 10px; }
.cmt-form input {
  flex: 1; min-width: 0; font: inherit; font-size: 13.5px; color: var(--text); padding: 8px 12px;
  border-radius: 6px; background: var(--card2); border: 1px solid var(--line); outline: none;
}
.cmt-form input:focus { border-color: var(--primary); background: #fff; }
.cmt-form input.nick { flex: 0 0 74px; padding: 8px; font-size: 13px; }
.empty { text-align: center; color: var(--muted); font-size: 13.5px; padding: 30px 0; }

/* ================= 友情链接 ================= */
.friends { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; }
.friend {
  display: flex; align-items: center; gap: 9px; padding: 10px 12px; text-align: left;
  border-radius: var(--radius); background: var(--bg); color: var(--text);
  font: inherit; cursor: pointer; box-shadow: var(--shadow-xs); transition: .2s;
}
.friend:hover { box-shadow: var(--shadow-sm); color: var(--primary); }
.friend .fav {
  width: 26px; height: 26px; flex: none; border-radius: 6px; color: #fff; font-size: 12px;
  font-weight: 700; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
}
.friend .ftxt { min-width: 0; }
.friend .ftxt b { display: block; font-size: 13.5px; font-weight: 600; }
.friend .ftxt small {
  display: block; font-size: 11.5px; color: var(--muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* ================= 页脚 ================= */
footer { margin-top: 30px; text-align: center; font-size: 12.5px; color: var(--muted); line-height: 1.9; }

/* ================= 动画 / 提示 ================= */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s, transform .5s; }
.reveal.in { opacity: 1; transform: none; }
#toast {
  position: fixed; left: 50%; bottom: 46px; transform: translate(-50%, 16px); z-index: 95;
  max-width: 78vw; padding: 10px 18px; border-radius: 6px; font-size: 13.5px;
  background: rgba(51, 51, 51, .94); color: #fff; opacity: 0; pointer-events: none;
  transition: opacity .25s, transform .25s;
}
#toast.on { opacity: 1; transform: translate(-50%, 0); }

/* ================= 手机端 ================= */
@media (max-width: 480px) {
  .app { padding: 12px; }
  .topbar-inner { padding: 0 12px; }
  .topbar .brand img { height: 18px; }
  .hero { padding: 18px 14px; }
  .hero h1 { font-size: 20px; }
  .cmt-form input { font-size: 16px; }
  .posts { gap: 10px; }
  .post { padding: 14px; gap: 10px; }
  .post .pa { width: 36px; height: 36px; }
  .post .pimgs.c1, .post .pimgs.c2 { max-width: 100%; }
  .cmt-form { flex-wrap: wrap; }
  .cmt-form input.nick { flex: 1 1 100%; }
  .cmt-form .btn { flex: none; padding: 8px 16px; }
  .friends { grid-template-columns: 1fr; }
  .lightbox { padding: 12px; }
  .lightbox img { max-height: 64vh; }
}

/* ================= 平板 ================= */
@media (min-width: 640px) {
  .app { padding: 18px; }
  .projects { grid-template-columns: 1fr 1fr; }
  .masonry { column-count: 3; }
}

/* ================= 电脑端：左资料卡 + 右内容 ================= */
@media (min-width: 1000px) {
  .app {
    display: grid; align-items: start; grid-template-columns: 300px minmax(0, 1fr);
    column-gap: 20px; padding: 20px 16px 60px;
  }
  .hero {
    grid-column: 1; grid-row: 1; position: sticky;
    top: calc(var(--sb, 0px) + 16px); text-align: left; padding: 20px;
  }
  .ring { width: 88px; height: 88px; margin: 0 0 14px; }
  .avatar { width: 84px; height: 84px; }
  .chips { justify-content: flex-start; }
  .actions { justify-content: flex-start; }
  .actions .btn { flex: 1; }
  .main { grid-column: 2; }
  .seg-wrap { margin-top: 0; }
  .hero:hover, .card:hover, .project:hover { box-shadow: var(--shadow-sm); }
}

@media (min-width: 1400px) { .masonry { column-count: 4; } }