/* ChinaTMCheck v3 — Swiss International
   依据 guizang skill Swiss 规范：
   - 纸白 #fafaf8 / 近黑 #0a0a0a / 唯一强调色 IKB 蓝 #002FA7，无第二强调色
   - 无圆角、无阴影、无渐变；细线（1px）分割 + 网格节奏
   - 大标题轻字重（200-400），小标签重字重（500-650）+ 宽字距大写
   - 左对齐内容轴，非对称留白 */

/* ---------- 自托管 webfonts（latin 子集，fontsource CDN） ---------- */
@font-face {
  font-family: "Inter"; font-style: normal; font-weight: 300; font-display: swap;
  src: url("/fonts/inter-latin-300.woff2") format("woff2");
}
@font-face {
  font-family: "Inter"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("/fonts/inter-latin-400.woff2") format("woff2");
}
@font-face {
  font-family: "Inter"; font-style: normal; font-weight: 500; font-display: swap;
  src: url("/fonts/inter-latin-500.woff2") format("woff2");
}
@font-face {
  font-family: "Inter"; font-style: normal; font-weight: 600; font-display: swap;
  src: url("/fonts/inter-latin-600.woff2") format("woff2");
}
@font-face {
  font-family: "Inter"; font-style: normal; font-weight: 700; font-display: swap;
  src: url("/fonts/inter-latin-700.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono"; font-style: normal; font-weight: 500; font-display: swap;
  src: url("/fonts/plexmono-latin-500.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono"; font-style: normal; font-weight: 600; font-display: swap;
  src: url("/fonts/plexmono-latin-600.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono"; font-style: normal; font-weight: 700; font-display: swap;
  src: url("/fonts/plexmono-latin-700.woff2") format("woff2");
}
:root {
  --paper: #fafaf8;
  --grey-1: #f0f0ee;
  --grey-2: #d4d4d2;
  --grey-3: #737373;
  --ink: #0a0a0a;
  --ink-soft: #444444;
  --ink-faint: #737373;
  --line: #0a0a0a;            /* hairline 用墨色，透明度控制深浅 */
  --hairline: rgba(10,10,10,.16);
  --accent: #002FA7;           /* IKB Blue — 唯一强调色 */
  --accent-on: #ffffff;
  --blue: var(--accent);       /* 兼容旧类名引用 */
  --blue-dark: #00227d;
  --blue-tint: #e8ebf4;
  --red: var(--accent);        /* 语义色全部折叠进单一强调色 */
  --red-tint: #e8ebf4;
  --yellow: var(--ink-soft);
  --yellow-tint: var(--grey-1);
  --green: var(--accent);
  --green-tint: #e8ebf4;
  --radius-s: 0; --radius-m: 0; --radius-l: 0; --radius-xl: 0;  /* 无圆角 */
  --shadow-1: none; --shadow-2: none; --shadow-3: none;          /* 无阴影 */
  --font-display: "Inter", "Helvetica Neue", "Segoe UI", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", "Cascadia Mono", Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-display);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ---------- 排版原子 ---------- */
.h-kicker {
  font-family: var(--font-mono); font-size: .78rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase; color: var(--accent);
  display: block; margin: 0 0 12px;
}
.h-kicker.kicker-light { color: var(--blue-tint); }
/* 提权：page-wrap / blog-wrap 的 <p> 灰色规则压不住 kicker */
.page-wrap .h-kicker, .blog-wrap .h-kicker, .order-wrap .h-kicker { color: var(--accent); }
.page-wrap .h-kicker.kicker-light { color: var(--blue-tint); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--paper);
  border-bottom: 2px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo {
  font-weight: 600; font-size: 1.05rem; color: var(--ink);
  text-decoration: none; letter-spacing: .01em; display: flex; align-items: center; gap: 12px;
}
.logo span { color: var(--accent); }
.logo-mark {
  width: 34px; height: 34px; flex: none; display: inline-block;
  background: var(--accent);           /* 深蓝容器 */
  display: inline-flex; align-items: center; justify-content: center;
}
.logo-mark svg { width: 100%; height: 100%; display: block; }
.site-header nav { display: flex; gap: 4px; align-items: center; }
.site-header nav a {
  color: var(--ink); text-decoration: none; font-size: .82rem; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase;
  padding: 8px 12px; white-space: nowrap;
}
.site-header nav a:hover { color: var(--accent); }
.site-header nav a.is-active { color: var(--accent); box-shadow: inset 0 -2px 0 var(--accent); }
/* 按钮在 nav 里必须保留按钮配色（nav a 的 specificity 会压掉 .btn-primary） */
.site-header nav a.btn { color: var(--paper); text-transform: none; font-size: .8rem; letter-spacing: 0; }
.site-header nav a.btn:hover { color: var(--accent-on); }

/* ---------- buttons：方块、无圆角 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: 0;
  font-weight: 600; text-decoration: none; font-size: .9rem; font-family: inherit;
  letter-spacing: .02em;
  border: 2px solid var(--ink); cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.btn-primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-on); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-small { padding: 8px 16px; font-size: .8rem; }
.btn-block { display: flex; width: 100%; margin-top: auto; }
.btn-large { padding: 15px 34px; font-size: .98rem; }

/* ---------- hero：纸白底苹果式居中 banner，IKB 蓝细条装饰 ---------- */
.hero {
  padding: 60px 0 0; background: var(--paper); color: var(--ink);
  position: relative; text-align: center;
}
/* 顶部全宽 IKB 蓝细条：首尾与 band-cta 大蓝块呼应 */
.hero::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 6px;
  background: var(--accent); pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.eyebrow {
  display: inline-block; text-transform: uppercase; letter-spacing: .18em;
  font-family: var(--font-mono); font-size: .72rem; font-weight: 600; color: var(--accent);
  background: transparent; border: none; padding: 0; margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.5rem, 5.2vw, 4.2rem); line-height: 1.07; letter-spacing: -.022em;
  margin: 0 auto; font-weight: 500; color: var(--ink);
}
.hero h1 strong { font-weight: 600; }
/* 标题下居中 IKB 蓝短杠：呼应 band h2 的左对齐蓝杠，此处居中变体 */
.hero h1::after {
  content: ""; display: block; width: 40px; height: 3px;
  background: var(--accent); margin: 26px auto 0;
}
.hero-sub {
  margin: 20px auto 0; max-width: 58ch; color: var(--ink-soft);
  font-size: 1.08rem; line-height: 1.5; font-weight: 400;
}
.hero-sub + .hero-sub { margin-top: 8px; }
.hero-sub strong { color: var(--ink); font-weight: 600; }
.hero-cta { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.hero-note { margin-top: 14px; font-size: .8rem; color: var(--ink-faint); }
/* banner 底部信任条收边：hairline 细线 + 顶部 IKB 蓝线压边 */
.hero-trust {
  margin-top: 44px;
  border-top: 3px solid var(--accent); border-bottom: 1px solid var(--hairline);
}
.hero .hero-trust .trust-bar {
  margin: 0; background: transparent; border: none;
  grid-template-columns: repeat(4, 1fr);
}
.hero .hero-trust .trust-chip {
  color: var(--ink); background: transparent;
  border: none; padding: 14px 18px 14px 0;
}
.hero .hero-trust .trust-chip + .trust-chip,
.hero .hero-trust .trust-chip:nth-child(2n),
.hero .hero-trust .trust-chip:nth-child(2n+1) {
  border-left: 1px solid var(--hairline); border-top: none; padding-left: 18px;
}
.hero .hero-trust .trust-chip .tc-sub { color: var(--ink-faint); }
/* 苹果式 CTA：蓝底白字主按钮 + 墨色描边次按钮 */
.hero .btn-primary { background: var(--accent); color: var(--accent-on); border-color: var(--accent); }
.hero .btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: var(--accent-on); }
.hero .btn-ghost { border-color: var(--ink); color: var(--ink); }
.hero .btn-ghost:hover { background: var(--ink); color: var(--paper); }

/* ---------- bands：细线分区 ---------- */
.band { padding: 80px 0; background: var(--paper); border-bottom: 1px solid var(--hairline); }
.band-alt { background: var(--grey-1); }
.band h2 {
  font-weight: 300;
  font-size: clamp(1.9rem, 3.4vw, 2.7rem); letter-spacing: -.02em;
  margin-bottom: 14px;
}
.band h2::after {
  content: ""; display: block; width: 32px; height: 3px;
  background: var(--accent); margin-top: 14px;
}
.band-head-sub { color: var(--ink-soft); max-width: 58ch; margin: 0 0 44px; font-size: 1.02rem; }

/* seller quote：引言块，左侧蓝条 + 出处可溯源 */
.seller-quote {
  margin: 0 0 36px; padding: 4px 0 4px 22px;
  border-left: 3px solid var(--accent);
}
.seller-quote p {
  margin: 0; font-size: 1.04rem; line-height: 1.62;
  color: var(--ink-soft); letter-spacing: .002em;
}
.seller-quote cite {
  display: block; margin-top: 10px; font-style: normal;
  font-size: .8rem; color: var(--ink-faint);
}
.seller-quote cite a { color: var(--accent); }

/* harm chain */
.chain { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 8px; border-top: 2px solid var(--line); }
.chain-step {
  background: var(--paper); padding: 28px 24px 28px 0;
  border-right: 1px solid var(--hairline); position: relative;
}
.chain-step:last-child { border-right: none; }
.chain-step + .chain-step { padding-left: 24px; }
.chain-step:hover { background: var(--grey-1); }
.chain-step::after { display: none; }
.chain-step h3 { font-weight: 600; font-size: 1.02rem; margin: 12px 0 8px; letter-spacing: .01em; }
.chain-step p { font-size: .9rem; color: var(--ink-soft); }
.step-icon {
  display: inline-flex; width: 44px; height: 44px; color: var(--accent);
  align-items: center; justify-content: center;
}
.step-icon svg { width: 34px; height: 34px; display: block; }
.step-num {
  display: inline-flex; min-width: 40px; height: 28px; padding: 0 8px;
  background: var(--accent); color: var(--accent-on);
  font-family: var(--font-mono); font-weight: 600; font-size: .85rem;
  align-items: center; justify-content: center;
}
.chain-arrow { display: none; }

.community-quote {
  margin: 44px 0 0; max-width: 720px; padding: 4px 0 4px 24px;
  border-left: 3px solid var(--accent);
  font-size: 1rem; color: var(--ink-soft);
}
.community-quote::before { display: none; }
.community-quote cite { display: block; margin-top: 10px; font-size: .8rem; font-style: normal; color: var(--ink-faint); padding-left: 0; }
.community-quote p { padding-left: 0; }

/* features + steps */
.grid-2 { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: start; }
.feature-list { list-style: none; border-top: 1px solid var(--hairline); }
.feature-list li {
  padding: 16px 0 16px 36px; position: relative;
  border-bottom: 1px solid var(--hairline);
}
.feature-list li:hover { background: transparent; }
.feature-list li + li { margin-top: 0; }
.feature-list li::before {
  content: "→"; position: absolute; left: 0; top: 17px;
  color: var(--accent); font-weight: 600; font-size: 1rem;
}
.feature-list li { color: var(--ink-soft); font-size: .95rem; }
.feature-list li strong { color: var(--ink); font-weight: 600; }

.steps { display: flex; flex-direction: column; gap: 0; }
.step {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--paper); padding: 18px 0; border-bottom: 1px solid var(--hairline);
  font-size: .95rem;
}
.step span {
  flex: none; display: inline-flex; min-width: 34px; height: 26px; padding: 0 8px;
  background: var(--accent); color: var(--accent-on); font-family: var(--font-mono);
  font-weight: 600; font-size: .8rem;
  align-items: center; justify-content: center;
}
.step strong { color: var(--ink); }

/* pricing */
.pricing-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; justify-content: start; margin-top: 8px; border: 2px solid var(--ink); }
.card {
  display: flex; flex-direction: column; background: var(--paper);
  padding: 34px 30px;
  transition: border-color .15s;
  position: relative;
}
.card:hover { border-color: var(--ink); }
.card-primary { border-right: 1px solid var(--hairline); background: #eef2fb; }
.card-primary::before {
  content: ""; position: absolute; top: 0; left: 0; bottom: 0; width: 4px;
  background: var(--accent);
}
.card-primary:hover { border-color: var(--ink); }
.card-secondary { background: var(--paper); }
.card h3 { font-weight: 600; font-size: 1rem; letter-spacing: .02em; text-transform: uppercase; }
.card h4 { font-weight: 600; font-size: 1rem; }
.card .price { font-size: 3.2rem; font-weight: 300; letter-spacing: -.03em; margin-top: 12px; color: var(--ink); line-height: 1.1; }
.card .price .plus { font-size: 1.2rem; color: var(--ink-faint); font-weight: 300; }
.card .per { color: var(--ink-faint); font-size: .85rem; margin-bottom: 18px; }
.card ul { list-style: none; margin: 0 0 26px; }
.card ul li { padding: 9px 0 9px 30px; position: relative; font-size: .93rem; color: var(--ink-soft); border-bottom: 1px solid var(--hairline); }
.card ul li:last-child { border-bottom: none; }
.card ul li::before {
  content: "+"; position: absolute; left: 2px; top: 7px;
  color: var(--accent); font-weight: 600;
}
.pricing-note { margin-top: 26px; font-size: .88rem; color: var(--ink-faint); }
.pricing-note a { color: var(--accent); font-weight: 500; text-decoration: none; }
.pricing-note a:hover { text-decoration: underline; }
.pricing-follow { margin-top: 52px; font-weight: 300; font-size: 1.5rem; letter-spacing: -.01em; }

/* 3 列网格（v2.2 引入，保留结构、换皮） */
.upsell-grid, .who-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 24px;
  border-top: 2px solid var(--line); border-left: 1px solid var(--hairline);
}
.upsell-grid .card { min-height: 100%; }
.card-soft {
  border: none; border-right: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline);
  padding: 26px 24px; background: var(--paper);
}
.card-soft:hover { transform: none; background: var(--grey-1); }
.card-soft h4 { font-weight: 600; font-size: .95rem; margin-bottom: 8px; color: var(--ink); }
.card-soft p { font-size: .9rem; color: var(--ink-soft); }
.card-soft a { color: var(--accent); font-weight: 500; text-decoration: none; }
.card-soft a:hover { text-decoration: underline; }

/* about us band */
.about-blurb { max-width: 64ch; margin: 0; color: var(--ink-soft); font-size: 1rem; }
.about-blurb a { color: var(--accent); font-weight: 500; text-decoration: none; }
.about-blurb a:hover { text-decoration: underline; }

/* FAQ */
details {
  max-width: 780px; margin: 0;
  background: var(--paper); padding: 0; margin-bottom: 0;
  border-bottom: 1px solid var(--hairline); overflow: hidden;
}
details[open] { box-shadow: none; }
details summary {
  cursor: pointer; font-weight: 600; padding: 20px 56px 20px 0; font-size: .98rem;
  list-style: none; position: relative; color: var(--ink); user-select: none;
}
details summary::-webkit-details-marker { display: none; }
details summary::after {
  content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  width: 24px; height: 24px; line-height: 24px; text-align: center;
  color: var(--accent); font-weight: 600; font-size: 1.3rem;
  transition: transform .2s;
}
details[open] summary::after { content: "−"; }
details p { padding: 0 40px 22px 0; color: var(--ink-soft); font-size: .93rem; }

/* blog cards */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 32px; border-top: 2px solid var(--line); border-left: 1px solid var(--hairline); }
.blog-grid .blog-card { max-width: none; margin: 0; display: flex; flex-direction: column; }
.blog-grid .blog-card p { flex: 1; }
.blog-card {
  max-width: 780px; background: var(--paper);
  padding: 26px 24px; text-decoration: none; display: block;
  border-right: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline);
  transition: background .15s; color: var(--ink);
}
.blog-card:visited { color: var(--ink); }
.blog-card:hover { background: var(--grey-1); }
.blog-card .tag {
  display: inline-block; font-family: var(--font-mono); font-size: .7rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px;
}
.blog-card h3 { font-weight: 500; font-size: 1.08rem; margin-bottom: 8px; color: var(--ink); line-height: 1.35; }
.blog-card p { color: var(--ink-soft); font-size: .9rem; }
.blog-card-cta { color: var(--accent); font-weight: 600; font-size: .88rem; margin-top: 14px; }

/* CTA band：IKB 蓝底反白（大块彩色对比面） */
.band-cta {
  padding: 88px 0;
  background: var(--accent); color: var(--paper);
  border-bottom: none;
}
.band-cta h2 { color: var(--paper); font-weight: 300; font-size: clamp(1.9rem, 3.4vw, 2.7rem); letter-spacing: -.02em; }
.band-cta h2::after { background: var(--paper); }
.band-cta p { color: rgba(250,250,248,.85); max-width: 50ch; margin: 16px 0 34px; font-size: 1.02rem; }
.band-cta .btn-primary { background: var(--paper); color: var(--accent); border-color: var(--paper); }
.band-cta .btn-primary:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.band-cta .btn-ghost { border-color: var(--paper); color: var(--paper); }
.band-cta .btn-ghost:hover { background: var(--paper); color: var(--accent); }

/* ---------- footer ---------- */
.site-footer { padding: 48px 0 56px; border-top: 2px solid var(--line); color: var(--ink-faint); font-size: .85rem; background: var(--paper); }
.site-footer .container { display: flex; flex-direction: column; gap: 14px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-links a { color: var(--ink-soft); text-decoration: none; }
.footer-links a:hover { color: var(--accent); text-decoration: underline; }
.fine { font-size: .78rem; }
/* footer 可查证信息区（zaoyi footer-ids 手法）：mono 小字一栏 */
.footer-ids {
  margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--hairline);
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px 40px;
}
.footer-ids h4 {
  grid-column: 1 / -1; margin: 0 0 2px;
  font-family: var(--font-mono); font-size: .68rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase; color: var(--accent);
}
.footer-ids dl { margin: 0; display: grid; grid-template-columns: 110px 1fr; gap: 4px 12px; font-family: var(--font-mono); font-size: .74rem; }
.footer-ids dt { color: var(--ink-faint); }
.footer-ids dd { margin: 0; color: var(--ink-soft); }
.footer-ids dd a { color: var(--accent); text-decoration: none; }
.footer-ids dd a:hover { text-decoration: underline; }

/* ---------- order page ---------- */
.order-wrap { max-width: 620px; margin: 0 auto; padding: 72px 24px 96px; }
.order-wrap h1 { font-weight: 300; font-size: clamp(1.9rem, 3.6vw, 2.6rem); letter-spacing: -.02em; margin-bottom: 12px; }
.order-note { color: var(--ink-soft); margin: 0 0 36px; }
.order-form { display: flex; flex-direction: column; gap: 22px; }
.order-form label { font-weight: 600; font-size: .85rem; display: block; margin-bottom: 8px; color: var(--ink); letter-spacing: .02em; }
.order-form .hint { font-weight: 400; color: var(--ink-faint); font-size: .8rem; }
.order-form input, .order-form textarea, .order-form select {
  width: 100%; padding: 13px 14px; border: 1px solid var(--ink); border-radius: 0;
  font-size: 1rem; font-family: inherit; background: var(--paper); color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
}
.order-form input:focus, .order-form textarea:focus, .order-form select:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent);
}
.pay-note {
  margin-top: 30px; padding: 18px 20px; background: var(--grey-1);
  border-left: 3px solid var(--accent); font-size: .9rem; color: var(--ink-soft);
}
.pay-note a { color: var(--accent); font-weight: 500; }

/* radio 组：瑞士风复选框/单选框 */
.radio-group { display: flex; flex-direction: column; gap: 0; margin-top: 4px; border-top: 1px solid var(--hairline); }
.radio-group label {
  display: flex; align-items: center; gap: 12px; padding: 13px 0;
  border-bottom: 1px solid var(--hairline); font-weight: 400; font-size: .95rem; color: var(--ink); cursor: pointer;
}
.radio-group input[type="radio"] {
  width: 18px; height: 18px; accent-color: var(--accent); cursor: pointer; flex: none;
}
.pay-sub { font-size: .82rem; color: var(--ink-faint); text-align: center; margin-top: 12px; }

/* ---------- generic page (about/legal) ---------- */
.page-wrap { max-width: 760px; margin: 0 auto; padding: 64px 24px 96px; }
.page-wrap h1 { font-weight: 300; font-size: clamp(1.9rem, 3.6vw, 2.6rem); margin-bottom: 20px; letter-spacing: -.02em; }
.page-wrap h2 { font-weight: 500; font-size: 1.25rem; margin: 36px 0 12px; }
.page-wrap p { margin-bottom: 16px; color: var(--ink-soft); font-size: .98rem; }
.page-wrap ul, .page-wrap ol { margin: 0 0 16px 4px; color: var(--ink-soft); list-style: none; }
.page-wrap ul li, .page-wrap ol li {
  margin-bottom: 0; padding: 12px 0 12px 2px; background: transparent;
  border-bottom: 1px solid var(--hairline); font-size: .93rem;
}
.page-wrap ol { counter-reset: gstep; }
.page-wrap ol li { counter-increment: gstep; position: relative; padding-left: 48px; }
.page-wrap ol li::before {
  content: counter(gstep, decimal-leading-zero); position: absolute; left: 0; top: 13px;
  color: var(--accent); font-family: var(--font-mono);
  font-weight: 600; font-size: .85rem;
}
.page-wrap a { color: var(--accent); font-weight: 500; text-decoration: none; }
.page-wrap a:hover { text-decoration: underline; }
.page-wrap li strong { color: var(--ink); }

/* ---------- v2.1 元素换皮 ---------- */
/* trust-bar：zaoyi 白卡仪表条手法的 Swiss 版——白底细边、每格 2 层（strong + span） */
.trust-bar {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; margin: 0;
  background: var(--paper); border: 1px solid var(--ink);
}
.trust-chip {
  display: flex; flex-direction: column; align-items: flex-start; gap: 3px;
  padding: 14px 16px; background: transparent; border: none;
  font-family: var(--font-display); font-size: .8rem; font-weight: 600; color: var(--ink);
}
.trust-chip + .trust-chip { border-top: 1px solid var(--hairline); border-left: none; }
.trust-chip:nth-child(2n) { border-left: 1px solid var(--hairline); }
.trust-chip:nth-child(2n+1) { border-top: 1px solid var(--hairline); }
.trust-chip:nth-child(-n+2) { border-top: none; }
.trust-chip svg { width: 16px; height: 16px; flex: none; margin-bottom: 4px; }
.trust-chip .tc-sub { font-family: var(--font-mono); font-size: .66rem; font-weight: 500; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-faint); }

.registry-card {
  background: var(--paper); border: 1px solid var(--ink);
  overflow: hidden; max-width: 560px; margin: 0 auto;
}
.registry-card-head {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 18px; background: var(--grey-1); border-bottom: 1px solid var(--hairline);
  font-family: var(--font-mono); font-size: .72rem; color: var(--ink-soft); font-weight: 600;
  letter-spacing: .08em; text-transform: uppercase;
}
.registry-card-head .dot { width: 8px; height: 8px; border-radius: 0; }
.registry-body { padding: 16px 18px; }
.registry-row {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 11px 2px; border-bottom: 1px solid var(--hairline); font-size: .85rem;
}
.registry-row:last-child { border-bottom: none; }
.registry-row .label { color: var(--ink-faint); }
.registry-row .value { color: var(--ink); font-weight: 500; text-align: right; }

.risk-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px; border-radius: 0; font-size: .7rem; font-weight: 700;
  font-family: var(--font-mono); letter-spacing: .06em; text-transform: uppercase;
}
.risk-badge::before { content: ""; width: 6px; height: 6px; border-radius: 0; }
.risk-clear { background: var(--grey-1); color: var(--ink); border: 1px solid var(--hairline); }
.risk-clear::before { background: var(--ink); }
.risk-watch { background: var(--grey-1); color: var(--ink); border: 1px solid var(--hairline); }
.risk-watch::before { background: var(--accent); }
.risk-act { background: var(--accent); color: var(--accent-on); }
.risk-act::before { background: var(--accent-on); animation: none; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 12px 0 0; border-top: 4px solid var(--accent); padding-top: 6px; }
.stat-cell {
  text-align: left; padding: 24px 20px 24px 0;
  background: transparent;
}
.stat-cell + .stat-cell { border-left: 1px solid var(--hairline); padding-left: 20px; }
.stat-cell .num {
  font-size: 2.2rem; font-weight: 300; letter-spacing: -.02em; color: var(--accent); line-height: 1.1;
}
.stat-cell .cap { font-size: .78rem; color: var(--ink-faint); margin-top: 6px; line-height: 1.45; }
/* stat-solo：每组一个大数（The Math 区），数字升格到定价卡同级体量 */
.stat-solo .stat-cell { padding: 28px 0 24px; }
.stat-solo .stat-cell .num {
  font-size: 3.4rem; line-height: 1.05; white-space: nowrap;
}
.stat-solo .stat-cell .cap { font-size: .85rem; margin-top: 10px; max-width: 34ch; }

/* versus：风险（深蓝反白=页面重音）vs 收益（纸白）两栏 */
.versus { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 2px solid var(--ink); }
.versus-col { padding: 34px 34px 30px; }
.versus-col + .versus-col { border-left: 2px solid var(--ink); }
.versus-label {
  margin: 0 0 6px; font-size: .78rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .1em; color: var(--accent);
}
.versus-col + .versus-col .versus-label { color: var(--ink); }
.versus-col + .versus-col .stat-grid { border-top-color: var(--ink); }
.versus-col + .versus-col .stat-cell .num { color: var(--ink); }
/* 左列 = 风险，深蓝底反白做情绪重音 */
.versus-risk { background: var(--accent); color: var(--paper); }
.versus-risk .versus-label { color: var(--blue-tint); }
.versus-risk .stat-grid { border-top-color: rgba(250,250,248,.5); }
.versus-risk .stat-cell { color: var(--paper); }
.versus-risk .stat-cell + .stat-cell { border-left-color: rgba(250,250,248,.28); }
.versus-risk .stat-cell .num { color: var(--paper); }
.versus-risk .stat-cell .cap { color: rgba(250,250,248,.75); }
.versus-risk .stat-cell .stat-src { color: rgba(250,250,248,.7); }
.versus-risk .stat-cell .stat-src:hover { color: var(--paper); }
/* 数字来源引用（zaoyi stat-src 手法的 Swiss 版） */
.stat-src {
  display: block; margin-top: 8px; font-family: var(--font-mono);
  font-size: .68rem; letter-spacing: .04em; color: var(--ink-faint);
  text-decoration: none; border-bottom: none;
}
.stat-src:hover { color: var(--accent); text-decoration: underline; }

.timeline { display: flex; align-items: stretch; gap: 0; margin: 36px 0 8px; }
.tl-step { flex: 1; text-align: left; position: relative; padding: 0 10px 0 0; }
.tl-step .tl-dot {
  width: auto; height: 26px; padding: 0 10px; border-radius: 0; margin: 0 0 12px;
  background: var(--ink); color: var(--paper);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 600; font-size: .8rem;
  position: relative; z-index: 2;
}
.tl-step:not(:last-child)::after {
  content: ""; position: absolute; top: 12px; left: 52px; right: 12px;
  height: 2px; background: var(--hairline); z-index: 1;
}
.tl-step .tl-t { font-weight: 600; font-size: .88rem; color: var(--ink); }
.tl-step .tl-d { font-size: .78rem; color: var(--ink-faint); margin-top: 3px; }

.seal {
  width: 92px; height: 92px; border-radius: 0;
  border: 2px solid var(--accent); color: var(--accent);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: .56rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  transform: none; opacity: 1; text-align: center; line-height: 1.5;
  flex: none;
}
.seal b { font-size: .74rem; }

.avatar {
  width: 48px; height: 48px; border-radius: 0; flex: none;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 1.05rem; color: var(--accent-on);
}
.avatar-blue, .avatar-green { background: var(--ink); }
.person-row { display: flex; gap: 16px; align-items: flex-start; margin: 22px 0; }
.person-row .avatar { margin-top: 2px; }
.person-row h3 { font-weight: 600; font-size: 1.02rem; }
.person-row .role { font-size: .76rem; color: var(--accent); font-weight: 600; margin-bottom: 6px; letter-spacing: .04em; text-transform: uppercase; }

/* ---------- 细节类 ---------- */
.tlink { color: var(--accent); }
.pricing-note-tight { margin: 14px 0 0; }
.pricing-note-gap { margin-top: 22px; }
.sample-link { margin-top: 16px; }
.sample-link a {
  color: var(--accent); font-weight: 600; text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
}
.sample-link a:hover { text-decoration: underline; }
.registry-card-gap { margin-bottom: 22px; }
.dot-red { background: var(--accent); }
.value-red { color: var(--accent); }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .chain { grid-template-columns: 1fr; }
  .chain-step { border-right: none; border-bottom: 1px solid var(--hairline); padding: 22px 0; }
  .chain-step + .chain-step { padding-left: 0; }
  .grid-2 { grid-template-columns: 1fr; }
  .pricing-cards { grid-template-columns: 1fr; }
  .card-primary { border-right: none; border-bottom: 1px solid var(--hairline); }
  .site-header nav a:not(.btn) { display: none; }
  /* 窄屏 logo 只留方块标（苹果式极简），避免与 CTA 挤压 */
  .logo { font-size: 0; gap: 0; }
  .logo-mark { width: 30px; height: 30px; }
  .hero { padding: 64px 0 52px; }
  .band { padding: 56px 0; }
  .upsell-grid, .who-grid, .blog-grid { grid-template-columns: 1fr; border-left: none; }
  .card-soft, .blog-card { border-right: none; }
  .stat-grid { grid-template-columns: 1fr; }
  .stat-cell + .stat-cell { border-left: none; border-top: 1px solid var(--hairline); padding-left: 0; }
  .timeline { flex-direction: column; gap: 16px; }
  .tl-step { display: flex; align-items: center; text-align: left; gap: 14px; }
  .tl-step .tl-dot { margin: 0; }
  .tl-step:not(:last-child)::after { display: none; }
  .trust-bar { grid-template-columns: 1fr; }
  .trust-chip + .trust-chip,
  .trust-chip:nth-child(2n) { border-left: none; padding-left: 0; }
  .trust-chip:nth-child(2n+1) { border-top: 1px solid var(--hairline); }
  .trust-chip:first-child { border-top: none; }
  .footer-ids { grid-template-columns: 1fr; }
  .versus { grid-template-columns: 1fr; }
  .versus-col + .versus-col { border-left: none; border-top: 2px solid var(--ink); }
  .hero { padding: 40px 0 0; }
  .hero-trust { margin-top: 32px; }
  .hero .hero-trust .trust-bar { grid-template-columns: 1fr; }
  .hero .hero-trust .trust-chip { padding: 12px 0; }
  .hero .hero-trust .trust-chip + .trust-chip,
  .hero .hero-trust .trust-chip:nth-child(2n),
  .hero .hero-trust .trust-chip:nth-child(2n+1) {
    border-left: none; border-top: 1px solid var(--hairline); padding-left: 0;
  }
}