/* ============================================================
   股市研究室 — 共用樣式
   金融深色主題 · 台灣慣例「紅漲綠跌」(--up 紅 / --down 綠)
   ============================================================ */
:root {
  --bg-0: #0b0f18;
  --bg-1: #111726;
  --bg-2: #161d2e;
  --card: rgba(255, 255, 255, 0.045);
  --card-hover: rgba(255, 255, 255, 0.075);
  --line: rgba(255, 255, 255, 0.10);
  --line-soft: rgba(255, 255, 255, 0.06);
  --text: #eaf0fb;
  --muted: #93a1bd;
  --muted-2: #6b7896;
  --gold: #f4c04a;
  --up: #ff5a5f;      /* 漲 / 賺 = 紅 (台灣慣例) */
  --up-soft: rgba(255, 90, 95, 0.14);
  --down: #35c46b;    /* 跌 / 賠 = 綠 (台灣慣例) */
  --down-soft: rgba(53, 196, 107, 0.14);
  --brand: #ff5a5f;
  --brand-2: #ffb347;
  --econ: #4aa3ff;    /* 世界經濟分類色 */
  --econ-soft: rgba(74, 163, 255, 0.14);
  --stock: #ff5a5f;   /* 個股分類色 */
  --stock-soft: rgba(255, 90, 95, 0.14);
  --radius: 18px;
  --shadow: 0 16px 46px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(140% 60% at 15% -5%, #1b2338 0%, transparent 55%),
    radial-gradient(120% 60% at 100% 0%, #241826 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 100%);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
img { max-width: 100%; }

.wrap { max-width: 940px; margin: 0 auto; padding: 0 18px; }

/* ---------- 頂部品牌列 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 15, 24, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.topbar .wrap {
  display: flex; align-items: center; gap: 12px;
  height: 60px;
}
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.brand .mark {
  width: 38px; height: 38px; border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  font-size: 21px;
  background: linear-gradient(145deg, var(--brand) 0%, var(--brand-2) 100%);
  box-shadow: 0 6px 18px rgba(255, 90, 95, 0.35), inset 0 1px 3px rgba(255,255,255,0.4);
}
.brand b { font-size: 17px; letter-spacing: 0.5px; }
.brand .en { font-size: 11px; color: var(--muted-2); letter-spacing: 1.5px; text-transform: uppercase; }
.topbar .spacer { flex: 1; }
.topbar .cnt { font-size: 12px; color: var(--muted); }

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 46px 0 26px; }
.hero h1 { font-size: 30px; letter-spacing: 1px; margin-bottom: 10px; }
.hero h1 .accent { color: var(--gold); }
.hero p { color: var(--muted); font-size: 14.5px; max-width: 560px; margin: 0 auto; }

/* ---------- 控制列(分類 tab + 搜尋) ---------- */
.controls {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  margin: 22px 0 26px;
}
.tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.tab {
  border: 1px solid var(--line); background: var(--card);
  color: var(--muted); font-size: 13.5px; font-weight: 600;
  padding: 9px 16px; border-radius: 999px; cursor: pointer;
  transition: all .15s ease; display: flex; align-items: center; gap: 6px;
}
.tab:hover { background: var(--card-hover); color: var(--text); }
.tab.active { background: var(--text); color: var(--bg-0); border-color: var(--text); }
.tab .n { font-size: 11px; opacity: 0.7; }
.search {
  flex: 1; min-width: 180px; position: relative;
}
.search input {
  width: 100%; background: var(--card); border: 1px solid var(--line);
  color: var(--text); font-size: 14px; padding: 10px 14px 10px 38px;
  border-radius: 12px; outline: none; font-family: inherit;
  transition: border-color .15s ease;
}
.search input:focus { border-color: var(--gold); }
.search input::placeholder { color: var(--muted-2); }
.search .ico { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); color: var(--muted-2); font-size: 15px; }

/* ---------- 卡片牆 ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  padding-bottom: 50px;
}
@media (max-width: 620px) { .grid { grid-template-columns: 1fr; } }

.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  text-decoration: none; color: inherit;
  display: flex; flex-direction: column;
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.22); background: var(--card-hover); }
.card .cover {
  aspect-ratio: 16 / 9; background: var(--bg-2);
  overflow: hidden; position: relative;
  display: flex; align-items: center; justify-content: center;
}
.card .cover img { width: 100%; height: 100%; object-fit: cover; }
.card .cover .ph { font-size: 42px; opacity: 0.5; }
.card .body { padding: 15px 16px 17px; display: flex; flex-direction: column; gap: 9px; flex: 1; }
.card .meta-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.badge {
  font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 7px; letter-spacing: 0.3px;
}
.badge.stock { color: var(--stock); background: var(--stock-soft); }
.badge.economy { color: var(--econ); background: var(--econ-soft); }
.card .code { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.card h3 { font-size: 16.5px; line-height: 1.45; }
.card .summary { font-size: 13px; color: var(--muted); line-height: 1.65;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card .foot { display: flex; align-items: center; gap: 8px; margin-top: auto; padding-top: 4px; }
.card .date { font-size: 12px; color: var(--muted-2); font-variant-numeric: tabular-nums; }
.card .tags { display: flex; gap: 5px; flex-wrap: wrap; margin-left: auto; }
.card .tag { font-size: 10.5px; color: var(--muted-2); border: 1px solid var(--line); padding: 2px 7px; border-radius: 6px; }

.empty {
  grid-column: 1 / -1; text-align: center; color: var(--muted);
  border: 1px dashed var(--line); border-radius: var(--radius);
  padding: 54px 24px; font-size: 14px;
}

/* ---------- 文章頁 ---------- */
.article-head { padding: 34px 0 8px; }
.back { display: inline-flex; align-items: center; gap: 6px; color: var(--muted);
  text-decoration: none; font-size: 13.5px; margin-bottom: 20px; transition: color .15s ease; }
.back:hover { color: var(--text); }
.article-head .meta-top { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.article-head h1 { font-size: 27px; line-height: 1.4; letter-spacing: 0.3px; }
.article-head .sub { display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin-top: 12px; color: var(--muted); font-size: 13px; }
.article-head .sub .dot { color: var(--muted-2); }
.article-head .tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }
.article-head .tag { font-size: 12px; color: var(--muted); background: var(--card);
  border: 1px solid var(--line); padding: 4px 11px; border-radius: 999px; }
.hr { height: 1px; background: var(--line-soft); margin: 22px 0 4px; }

/* ---------- Markdown 內文排版 ---------- */
.md { padding: 8px 0 60px; font-size: 15.5px; }
.md h1 { display: none; }  /* 標題已在 article-head 顯示,隱藏內文重複的 h1 */
.md h2 {
  font-size: 21px; margin: 40px 0 14px; padding-left: 14px;
  border-left: 4px solid var(--brand); line-height: 1.4;
}
.md h3 { font-size: 17.5px; margin: 26px 0 10px; color: var(--gold); }
.md h4 { font-size: 15.5px; margin: 20px 0 8px; color: var(--text); }
.md p { margin: 12px 0; color: #dbe3f2; }
.md ul, .md ol { margin: 12px 0 12px 4px; padding-left: 22px; }
.md li { margin: 7px 0; color: #dbe3f2; }
.md li::marker { color: var(--brand-2); }
.md strong { color: #fff; font-weight: 700; }
.md a { color: var(--gold); text-decoration: underline; text-underline-offset: 3px; }
.md hr { border: none; height: 1px; background: var(--line-soft); margin: 30px 0; }

.md blockquote {
  margin: 18px 0; padding: 14px 18px;
  background: var(--up-soft); border-left: 4px solid var(--brand);
  border-radius: 0 12px 12px 0; color: #f0e6d8;
}
.md blockquote p { margin: 6px 0; color: inherit; }
.md blockquote strong { color: var(--gold); }

.md figure, .md p > img { margin: 26px 0; }
.md img {
  width: 100%; border-radius: 14px; border: 1px solid var(--line);
  box-shadow: var(--shadow); background: #fff;
}
.md figure figcaption, .md .imgcap {
  text-align: center; font-size: 12.5px; color: var(--muted-2); margin-top: 9px;
}

.md table {
  width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px;
  border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
}
.md thead th { background: rgba(255,255,255,0.05); color: var(--text); font-weight: 700; }
.md th, .md td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.md tbody tr:last-child td { border-bottom: none; }
.md tbody tr:hover { background: rgba(255,255,255,0.03); }
.md td strong { color: var(--gold); }

.md code {
  background: rgba(255,255,255,0.08); color: #ffd6a5;
  padding: 2px 7px; border-radius: 6px; font-size: 0.9em;
  font-family: "SFMono-Regular", Consolas, monospace;
}
.md pre { background: #0d1220; border: 1px solid var(--line); border-radius: 12px;
  padding: 16px; overflow-x: auto; margin: 18px 0; }
.md pre code { background: none; color: #e0e6f2; padding: 0; }

/* 漲跌語意色(內文可用 <span class="up">/<span class="down">) */
.up { color: var(--up); font-weight: 700; }
.down { color: var(--down); font-weight: 700; }

/* ---------- 文章頁:同檔其他研究 ---------- */
#siblings { padding: 4px 0 50px; }
#siblings:empty { display: none; }
.sib-head { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 14px;
  padding-left: 12px; border-left: 4px solid var(--brand); display: flex; align-items: center; flex-wrap: wrap; }
.sib-cnt { font-size: 12px; font-weight: 600; color: var(--muted-2); }
.sib-list { display: flex; flex-direction: column; gap: 8px; }
.sib {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px 15px; text-decoration: none; color: inherit;
  transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
.sib:hover { background: var(--card-hover); border-color: rgba(255,255,255,0.22); transform: translateX(3px); }
.sib-date { font-size: 12.5px; color: var(--gold); font-variant-numeric: tabular-nums; flex: 0 0 auto; }
.sib-title { font-size: 14px; color: var(--text); flex: 1;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sib-arrow { color: var(--muted-2); flex: 0 0 auto; }
.sib-all { display: inline-block; margin-top: 14px; color: var(--muted); font-size: 13px;
  text-decoration: none; transition: color .15s ease; }
.sib-all:hover { color: var(--gold); }

/* ---------- 頁尾 ---------- */
footer.site {
  border-top: 1px solid var(--line-soft); padding: 24px 0 40px;
  text-align: center; color: var(--muted-2); font-size: 12px;
}
footer.site .disc { margin-top: 6px; color: var(--muted-2); }

.loading { text-align: center; color: var(--muted); padding: 60px 0; font-size: 14px; }