/* Deep Value — 英文站共享样式
   与 tools/md2html.py 的报告页内联 CSS 同源（深色金融专业风） */

:root {
  --bg: #0a1628;
  --bg2: #0c231d;
  --gold: #c9a227;
  --gold-light: #e8c85a;
  --white: #f2f4f8;
  --gray: #8a94a6;
  --gray-dark: #55606f;
  --line: rgba(201, 162, 39, .28);
  --border: rgba(242, 244, 248, .12);
  --card: rgba( 255, 255, 255, .04);
  --green: #4ea87a;
  --amber: #d9a441;
  --slate: #7c8798;
  --radius: 10px;
  --maxw: 1040px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-sans);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 100% 0%, rgba(201, 162, 39, .07), transparent 60%),
    radial-gradient(ellipse 60% 50% at 0% 100%, rgba(12, 35, 29, .55), transparent 70%);
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(1rem, 5vw, 2rem); }

a { color: var(--gold-light); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------------- header ---------------- */

.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 22, 40, .88);
  backdrop-filter: blur(10px);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding-top: .85rem;
  padding-bottom: .85rem;
  flex-wrap: wrap;
}
.brand { color: var(--gold-light); font-weight: 800; font-size: 1.02rem; letter-spacing: .01em; }
.brand small { display: block; color: var(--gray-dark); font-weight: 400; font-size: .7rem; letter-spacing: .04em; }
.nav { display: flex; gap: 1.1rem; margin-left: auto; flex-wrap: wrap; align-items: center; }
.nav a { color: var(--gray); font-size: .9rem; }
.nav a:hover { color: var(--gold-light); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--gold-light); }

/* ---------------- buttons ---------------- */

.btn {
  display: inline-block;
  padding: .6rem 1.15rem;
  border-radius: 7px;
  background: var(--gold);
  color: #0a1628;
  font-weight: 700;
  font-size: .92rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.btn:hover { filter: brightness(1.08); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--gold-light); border: 1px solid var(--line); }
.btn.ghost:hover { background: var(--card); }
.btn-row { display: flex; gap: .7rem; flex-wrap: wrap; align-items: center; }

/* ---------------- hero ---------------- */

.hero { padding: clamp(2.8rem, 7vw, 5rem) 0 1rem; }
.hero h1 {
  font-size: clamp(1.9rem, 5vw, 3.1rem);
  line-height: 1.18;
  margin: 0 0 .8rem;
  font-weight: 800;
  letter-spacing: -.015em;
}
.hero h1 em { color: var(--gold-light); font-style: normal; }
.hero p.lead { font-size: clamp(1.02rem, 2vw, 1.2rem); color: var(--gray); max-width: 62ch; margin: 0 0 1.4rem; }
.hero .btn-row { margin-top: .4rem; }
.kicker {
  display: inline-block;
  font-size: .72rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .28rem .8rem;
  margin-bottom: 1.1rem;
}

/* ---------------- sections ---------------- */

section { padding: clamp(2rem, 5vw, 3.4rem) 0; }
.sec-head { margin-bottom: 1.6rem; }
.sec-head h2 {
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  margin: 0 0 .4rem;
  font-weight: 750;
  color: var(--gold-light);
  letter-spacing: -.01em;
}
.sec-head p { color: var(--gray); margin: 0; max-width: 68ch; }
.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

/* ---------------- steps ---------------- */

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1rem; }
.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem;
}
.step .n {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--gold);
  letter-spacing: .1em;
}
.step h3 { margin: .35rem 0 .4rem; font-size: 1.02rem; font-weight: 700; }
.step p { margin: 0; color: var(--gray); font-size: .9rem; }

/* ---------------- report cards ---------------- */

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1rem; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  transition: border-color .15s ease, transform .15s ease;
}
.card:hover { border-color: var(--line); transform: translateY(-2px); }
.card .tick {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .09em;
  color: var(--gold);
}
.card h3 { margin: 0; font-size: 1.12rem; font-weight: 700; line-height: 1.35; }
.card .sector { color: var(--gray-dark); font-size: .78rem; letter-spacing: .05em; text-transform: uppercase; }
.card .verdict-line { color: var(--gray); font-size: .91rem; margin: 0; flex: 1; }
.card .meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--gray-dark);
  font-size: .8rem;
  font-family: var(--font-mono);
  padding-top: .2rem;
}
.card .actions { display: flex; gap: .6rem; flex-wrap: wrap; padding-top: .5rem; }
.card .actions a {
  font-size: .85rem;
  padding: .4rem .8rem;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.card .actions a.primary { background: var(--gold); color: #0a1628; border-color: transparent; font-weight: 700; }

/* ---------------- verdict badge ---------------- */

.badge {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  padding: .25rem .62rem;
  border-radius: 999px;
  border: 1px solid;
}
.badge.worth-researching { color: var(--green); border-color: rgba(78, 168, 122, .45); background: rgba(78, 168, 122, .1); }
.badge.worth-monitoring { color: var(--amber); border-color: rgba(217, 164, 65, .45); background: rgba(217, 164, 65, .1); }
.badge.pass-for-now { color: var(--slate); border-color: rgba(124, 135, 152, .45); background: rgba(124, 135, 152, .1); }

/* ---------------- filter card ---------------- */

.filter-card {
  background: linear-gradient(135deg, rgba(12, 35, 29, .75), rgba(10, 22, 40, .4));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.4rem, 4vw, 2.2rem);
}
.filter-card h2 { margin: 0 0 .5rem; font-size: clamp(1.2rem, 3vw, 1.55rem); color: var(--gold-light); }
.filter-card p { color: var(--gray); max-width: 62ch; }
.filter-list { list-style: none; padding: 0; margin: 1.1rem 0 0; display: grid; gap: .6rem; }
.filter-list li { display: flex; gap: .7rem; align-items: flex-start; color: var(--white); font-size: .93rem; }
.filter-list li::before { content: "→"; color: var(--gold); flex: 0 0 auto; }

/* ---------------- newsletter ---------------- */

.signup { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1rem; }
.signup input[type="email"] {
  flex: 1 1 240px;
  padding: .65rem .85rem;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, .25);
  color: var(--white);
  font-size: .95rem;
  font-family: inherit;
}
.signup input[type="email"]:focus { outline: 2px solid var(--gold); outline-offset: 1px; }
.signup .note { font-size: .8rem; color: var(--gray-dark); margin-top: .6rem; }
.signup .ok { color: var(--green); font-size: .9rem; margin-top: .6rem; display: none; }
.signup .err { color: #e07a7a; font-size: .9rem; margin-top: .6rem; display: none; }

/* ---------------- pricing ---------------- */

.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; }
.price-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .7rem;
}
.price-card.featured { border-color: var(--line); background: rgba(201, 162, 39, .06); }
.price-card h3 { margin: 0; font-size: 1.05rem; font-weight: 700; }
.price-card .price { font-size: 2.1rem; font-weight: 800; color: var(--gold-light); line-height: 1.1; }
.price-card .price small { font-size: .85rem; color: var(--gray); font-weight: 400; }
.price-card ul { margin: 0; padding-left: 1.1rem; color: var(--gray); font-size: .9rem; flex: 1; }
.price-card li { margin-bottom: .35rem; }
.price-card .btn { text-align: center; }

details.faq { border-top: 1px solid var(--border); padding: .9rem 0; }
details.faq summary { cursor: pointer; font-weight: 650; color: var(--white); list-style: none; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::before { content: "+ "; color: var(--gold); }
details.faq[open] summary::before { content: "− "; }
details.faq p { color: var(--gray); margin: .6rem 0 0; font-size: .92rem; max-width: 70ch; }

/* ---------------- prose (methodology / pricing body) ---------------- */

.prose { max-width: 74ch; }
.prose h2 { color: var(--gold-light); font-size: 1.35rem; margin: 2.2rem 0 .6rem; padding-left: .6rem; border-left: 4px solid var(--gold); }
.prose h3 { font-size: 1.06rem; margin: 1.5rem 0 .4rem; }
.prose p, .prose li { color: #d7dce6; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose code { background: rgba(201, 162, 39, .12); padding: .1rem .35rem; border-radius: 4px; font-family: var(--font-mono); font-size: .88em; color: var(--gold-light); }
.prose strong { color: var(--white); }
.prose blockquote { border-left: 3px solid var(--line); margin: 1rem 0; padding: .2rem 0 .2rem 1rem; color: var(--gray); }
.prose table { width: 100%; border-collapse: collapse; font-size: .9rem; margin: 1rem 0; table-layout: auto; }
.prose th { text-align: left; background: rgba(201, 162, 39, .13); color: var(--gold-light); padding: .55rem .7rem; }
.prose td { padding: .45rem .7rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.prose th, .prose td { overflow-wrap: anywhere; }
.prose td:first-child { color: var(--gray); }

/* ---------------- footer ---------------- */

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  padding: 2rem 0 3rem;
  color: var(--gray-dark);
  font-size: .82rem;
}
.site-footer .cols { display: flex; gap: 2rem; flex-wrap: wrap; justify-content: space-between; }
.site-footer h4 { color: var(--gray); font-size: .8rem; text-transform: uppercase; letter-spacing: .09em; margin: 0 0 .6rem; }
.site-footer a { color: var(--gray); display: block; margin-bottom: .3rem; font-size: .85rem; }
.site-footer .legal { margin-top: 1.4rem; max-width: 80ch; line-height: 1.6; }

@media (max-width: 640px) {
  .nav { width: 100%; margin-left: 0; }
  .hero { padding-top: 2rem; }
}

/* ---------------- 打印（PDF 导出用） ---------------- */

.print-only { display: none; }

@media print {
  .site-header { display: none; }
  .related { display: none; }
  .site-footer .cols { display: none; }
  .site-footer { border-top: 1px solid #ccc; margin-top: 1.5rem; padding-top: .6rem; color: #555; }
  .site-footer .legal { margin-top: 0; }
  .print-only {
    display: block;
    margin-top: 2rem;
    padding-top: .8rem;
    border-top: 1px solid #ccc;
    color: #555;
    font-size: 9pt;
    line-height: 1.55;
  }
  .print-only a { color: #0052cc; }
  .print-only .pbrand { color: #111; font-weight: 700; }
  h1, h2, h3 { break-after: avoid-page; page-break-after: avoid; }
  h2 { break-before: auto; }
  table, .table-wrap { break-inside: auto; }
  tr { break-inside: avoid; page-break-inside: avoid; }
  thead { display: table-header-group; }
  .card, .step, .price-card { break-inside: avoid; page-break-inside: avoid; }
}