:root {
  --bg: #faf8f4;
  --surface: #ffffff;
  --surface-soft: #f5f1e8;
  --ink: #1d2330;
  --ink-soft: #5b6273;
  --ink-faint: #8b8577;
  --line: #e6e0d4;
  --accent: #2b3a55;
  --accent-soft: #eef1f7;
  --gold: #b89b62;
  --ok: #3c6e47;
  --warn: #8a6d1f;
  --radius: 14px;
  --serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "Times New Roman", serif;
  --sans: "PingFang SC", "Noto Sans CJK SC", "Source Han Sans SC", "Microsoft YaHei", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12141c;
    --surface: #1a1d27;
    --surface-soft: #212533;
    --ink: #eceae4;
    --ink-soft: #b3b7c4;
    --ink-faint: #8d919e;
    --line: #2c3140;
    --accent: #8fa6d1;
    --accent-soft: #232a3a;
    --gold: #d3b478;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 780px; }

header.site {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 62px; }
.brand { font-weight: 600; letter-spacing: 0.28em; font-size: 14px; text-transform: uppercase; }
.brand a { color: var(--ink); }
.nav-links { display: flex; align-items: center; gap: 18px; font-size: 14px; }
.nav-links a { color: var(--ink-soft); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; border: 1px solid transparent;
  font-size: 15px; font-weight: 500; cursor: pointer; font-family: inherit;
  /* 按钮文字永不折行：窄屏下 flex 会把按钮压窄，折行后按钮会撑出 header */
  white-space: nowrap;
  transition: transform .15s ease, opacity .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-ghost { background: transparent; color: var(--accent); border-color: var(--line); }
.btn[disabled], .btn.is-disabled { opacity: .55; cursor: not-allowed; transform: none; }
.btn-sm { padding: 9px 18px; font-size: 13.5px; }

.hero { padding: 84px 0 56px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -40% -10% auto -10%; height: 560px;
  background: radial-gradient(60% 60% at 20% 30%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 70%),
              radial-gradient(50% 50% at 80% 10%, color-mix(in srgb, var(--gold) 12%, transparent), transparent 70%);
  pointer-events: none;
}
.hero .wrap { position: relative; }
.eyebrow { font-size: 13px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; }
h1 { font-family: var(--serif); font-size: clamp(34px, 5.4vw, 54px); line-height: 1.22; margin: 0 0 20px; font-weight: 600; }
.lede { font-size: clamp(16px, 2vw, 19px); color: var(--ink-soft); max-width: 660px; margin: 0 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.price-note { font-size: 13.5px; color: var(--ink-faint); }
.notice {
  margin-top: 20px; padding: 12px 16px; border-radius: 10px; font-size: 14px;
  background: var(--surface-soft); border: 1px solid var(--line); color: var(--ink-soft);
}

section { padding: 58px 0; border-top: 1px solid var(--line); }
section.plain { border-top: 0; }
h2 { font-family: var(--serif); font-size: clamp(23px, 3vw, 30px); margin: 0 0 14px; font-weight: 600; }
h3 { font-size: 17px; margin: 0 0 8px; }
.section-lede { color: var(--ink-soft); max-width: 720px; margin: 0 0 30px; }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px;
}
.card.soft { background: var(--surface-soft); }
.card .num { font-family: var(--serif); font-size: 26px; color: var(--accent); }
.stat { font-size: 14px; color: var(--ink-faint); }

.sample {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 18px 50px -30px rgba(29,35,48,.35);
}
.sample-head { padding: 22px 24px; background: linear-gradient(140deg, #1b2440, #10162a); color: #f2efe8; }
.sample-head .kicker { font-size: 12px; letter-spacing: .2em; color: #9aa4bb; text-transform: uppercase; }
.sample-head h3 { font-family: var(--serif); font-size: 26px; margin: 8px 0 4px; }
.sample-head .sub { font-size: 13px; color: #b9c1d2; }
.sample-body { padding: 22px 24px; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.sample-body dt { font-size: 12px; color: var(--ink-faint); letter-spacing: .06em; }
.sample-body dd { margin: 3px 0 0; font-size: 15px; }
.sample-quote { padding: 0 24px 22px; color: var(--ink-soft); font-family: var(--serif); font-size: 16px; }

table.registry { width: 100%; border-collapse: collapse; font-size: 14.5px; }
table.registry th, table.registry td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.registry th { font-size: 12.5px; color: var(--ink-faint); font-weight: 500; letter-spacing: .06em; white-space: nowrap; }
table.registry tr:hover td { background: var(--surface-soft); }
.mono { font-family: var(--mono); font-size: 13px; }
.tag { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; background: var(--accent-soft); color: var(--accent); }
.tag.muted { background: var(--surface-soft); color: var(--ink-faint); }

.search-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
input[type="search"] {
  flex: 1 1 260px; padding: 11px 15px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--surface); color: var(--ink); font-size: 14.5px; font-family: inherit;
}

.faq details {
  border-bottom: 1px solid var(--line); padding: 18px 0;
}
.faq summary { cursor: pointer; font-size: 16.5px; font-weight: 500; list-style: none; display: flex; justify-content: space-between; gap: 14px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--ink-faint); font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq .answer { color: var(--ink-soft); padding-top: 12px; font-size: 15px; }

.steps { counter-reset: step; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.step { position: relative; padding-left: 46px; }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 0; width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); display: grid; place-items: center;
  font-size: 14px; font-weight: 600;
}

.banner { padding: 14px 18px; border-radius: 10px; font-size: 14px; margin-bottom: 22px; }
.banner.warn { background: color-mix(in srgb, var(--warn) 12%, transparent); color: var(--warn); }
.banner.ok { background: color-mix(in srgb, var(--ok) 12%, transparent); color: var(--ok); }

.star-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.star-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.star-name { font-family: var(--serif); font-size: clamp(28px, 4vw, 40px); margin: 0; font-weight: 600; }
.star-sub { color: var(--ink-faint); font-size: 14px; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; vertical-align: middle; border: 1px solid var(--line); }
.data-grid { display: grid; gap: 16px 24px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); margin: 24px 0 0; }
.data-grid dt { font-size: 12px; color: var(--ink-faint); letter-spacing: .06em; }
.data-grid dd { margin: 4px 0 0; font-size: 15.5px; }
.chart { margin-top: 24px; border: 1px solid var(--line); border-radius: 10px; padding: 10px; background: var(--surface-soft); }
.chart svg { width: 100%; height: auto; }
.dedication {
  margin-top: 24px; padding: 18px 20px; border-left: 3px solid var(--gold);
  background: var(--surface-soft); font-family: var(--serif); font-size: 17px; line-height: 1.9;
  white-space: pre-wrap; border-radius: 0 10px 10px 0;
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.verify-box { margin-top: 26px; padding: 20px 22px; border: 1px dashed var(--line); border-radius: var(--radius); }
.verify-box ol { margin: 10px 0 0; padding-left: 20px; color: var(--ink-soft); font-size: 14.5px; }
.verify-box li { margin-bottom: 8px; }

footer.site { border-top: 1px solid var(--line); padding: 40px 0 56px; color: var(--ink-faint); font-size: 13.5px; }
footer.site .foot-grid { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
footer.site .disclaimer { max-width: 620px; line-height: 1.8; }

.center { text-align: center; }
.muted { color: var(--ink-faint); }
.empty { padding: 40px 0; color: var(--ink-faint); text-align: center; }
.share-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* 窄屏导航：品牌 + 链接 + 购买按钮在 320~430px 里挤不下，flex 会把购买按钮压到折行
   （390px 折成两行、320px 折成四行并撑出 header）。这里收窄间距与字号，配合按钮
   white-space: nowrap，保证购买入口始终单行可点；「常见问题」是页内锚点，
   窄屏下从导航收起，正文往下滚即可到达。 */
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .nav { gap: 10px; }
  .brand { font-size: 12.5px; letter-spacing: 0.18em; }
  .nav-links { gap: 12px; font-size: 13px; }
  .nav .btn { padding: 8px 14px; font-size: 13px; }
  .nav-links a[href="#faq"] { display: none; }
}

/* 下单前登记表单（名字 / 献词 / 匿名） */
.register-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 8px auto 0;
  max-width: 460px;
  text-align: left;
}
.register-form .field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.register-form .field-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text, #16309a);
}
.register-form .field-label em {
  font-style: normal;
  font-size: 12px;
  color: #b4552a;
  font-weight: 500;
  margin-left: 4px;
}
.register-form input[type="text"],
.register-form textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid #d8dbe9;
  border-radius: 10px;
  font: inherit;
  color: #1b2a4a;
  background: #fff;
}
.register-form textarea { resize: vertical; min-height: 64px; }
.register-form input[type="text"]:focus,
.register-form textarea:focus {
  outline: 2px solid #16309a;
  outline-offset: 1px;
  border-color: transparent;
}
.register-form .field-hint {
  align-self: flex-end;
  font-size: 12px;
  color: #8a91a8;
}
.register-form .field.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #2a3a5f;
}
.register-form .field.checkbox input { width: 16px; height: 16px; accent-color: #16309a; }
.register-form .btn { align-self: center; margin-top: 4px; }
.register-form .field-note { font-size: 12.5px; text-align: center; margin-top: 2px; }
/* 登记页的「接下来会发生什么」 */
.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.steps li {
  counter-increment: step;
  position: relative;
  padding: 12px 14px 12px 46px;
  border: 1px solid #e6e8f2;
  border-radius: 12px;
  background: #fbfcff;
  font-size: 14.5px;
  color: #2a3a5f;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 14px;
  top: 12px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #16309a;
  color: #fff;
  font-size: 12.5px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.steps li b { color: #16309a; }