/* ==========================================================================
   双面人格 · 显影室 —— 主样式
   两种主题：dark（暗房/落地/测试/结果）与 paper（相纸/报告）
   不使用任何 CSS 框架，全部手写。
   ========================================================================== */

/* 构建时由 build.py 注入字体子集的 @font-face；缺失时自动回落到系统字体栈 */
/*__FONT_FACE__*/

:root {
  --serif: "Darkroom Serif", "Noto Serif SC", "Source Han Serif SC", "Songti SC", STSong, SimSun, "Times New Roman", serif;
  --sans: "Darkroom Sans", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, "Courier New", monospace;

  --measure: 33em;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --gut: clamp(20px, 5vw, 34px);
}

[data-theme="dark"] {
  --bg: #0b0a0a;
  --bg-lift: #121010;
  --fg: #efe9dc;
  --lead: #c8c1b1;
  --muted: #9a948c;
  --dim: #6d675f;
  --faint: rgba(239, 233, 220, 0.18);
  --rule: rgba(239, 233, 220, 0.14);
  --rule-strong: rgba(239, 233, 220, 0.32);
  --accent: #c0271c;
  --teal: #2e6e6a;
  --panel: rgba(239, 233, 220, 0.045);
  --shade: #050505;

  --c-ink: #efe9dc;
  --c-accent: #c0271c;
  --c-muted: #8a847c;
  --c-track: rgba(239, 233, 220, 0.1);
}

[data-theme="paper"] {
  --bg: #efe9dc;
  --bg-lift: #e8e1d1;
  --fg: #14120f;
  --lead: #3a352d;
  --muted: #6b6459;
  --dim: #8c857a;
  --faint: rgba(20, 18, 15, 0.16);
  --rule: rgba(20, 18, 15, 0.16);
  --rule-strong: rgba(20, 18, 15, 0.36);
  --accent: #a51f16;
  --teal: #235e5a;
  --panel: rgba(20, 18, 15, 0.035);
  --shade: #dcd4c2;

  --c-ink: #14120f;
  --c-accent: #a51f16;
  --c-muted: #6b6459;
  --c-track: rgba(20, 18, 15, 0.09);
}

/* --------------------------------------------------------------- 基础重置 */
*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.95;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
canvas {
  max-width: 100%;
}

h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  font-weight: 500;
  line-height: 1.35;
}

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.34em;
  text-decoration-color: var(--rule-strong);
  transition: color 0.2s, text-decoration-color 0.2s;
}

a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

::selection {
  background: var(--accent);
  color: #efe9dc;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* --------------------------------------------------------------- 排版工具 */
.micro {
  font-family: var(--sans);
  font-size: 11.5px;
  letter-spacing: 0.3em;
  color: var(--muted);
  text-indent: 0.3em;
  line-height: 1.8;
}

.mono {
  font-family: var(--mono);
  letter-spacing: 0.06em;
}

.lead {
  color: var(--lead);
}

.dim {
  color: var(--muted);
}

.rule {
  height: 1px;
  background: var(--rule);
  border: 0;
  margin: 0;
}

/* --------------------------------------------------------------- 版面容器 */
.wrap {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding-left: var(--gut);
  padding-right: var(--gut);
}

.wrap--narrow {
  max-width: 660px;
}

.wrap--wide {
  max-width: 1080px;
}

/* --------------------------------------------------------------- 站点头尾 */
.site-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 0 18px;
  border-bottom: 1px solid var(--rule);
}

.site-head__brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--sans);
  font-size: 13.5px;
  letter-spacing: 0.2em;
  text-decoration: none;
  color: var(--fg);
}

.site-head__brand .mark {
  width: 7px;
  height: 7px;
  background: var(--accent);
  transform: translateY(-2px);
}

.site-head__brand:hover {
  color: var(--fg);
}

.site-head nav {
  display: flex;
  gap: 26px;
}

.site-head nav a {
  font-family: var(--sans);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-decoration: none;
}

.site-head nav a:hover {
  color: var(--fg);
}

.site-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px 30px;
  margin-top: clamp(60px, 9vw, 110px);
  padding: 34px 0 70px;
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.9;
  color: var(--dim);
  letter-spacing: 0.04em;
}

.site-foot a {
  color: var(--dim);
}

/* --------------------------------------------------------------- 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  border: 1px solid var(--rule-strong);
  background: transparent;
  color: var(--fg);
  font-family: var(--sans);
  font-size: 14px;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease);
}

.btn:hover {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
  text-decoration: none;
}

.btn--solid {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

.btn--solid:hover {
  background: transparent;
  color: var(--fg);
}

.btn--block {
  width: 100%;
}

.btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn[disabled]:hover {
  background: transparent;
  color: var(--fg);
  border-color: var(--rule-strong);
}

.link-quiet {
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-decoration-color: var(--rule);
}

/* --------------------------------------------------------------- 落地页 */
.hero {
  padding: clamp(56px, 10vw, 120px) 0 clamp(50px, 7vw, 90px);
}

.hero__kicker {
  display: flex;
  align-items: center;
  gap: 14px;
}

.hero__kicker::before {
  content: "";
  width: 42px;
  height: 1px;
  background: var(--accent);
  flex: none;
}

.hero__title {
  margin-top: 26px;
  font-size: clamp(2.7rem, 6.6vw, 4.7rem);
  line-height: 1.1;
  letter-spacing: 0.045em;
}

.hero__title .thin {
  color: var(--muted);
}

.hero__lead {
  max-width: 30em;
  margin-top: 34px;
  font-size: 19px;
  line-height: 2.05;
  color: var(--lead);
}

.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 26px 46px;
  margin-top: 46px;
}

.fact__value {
  font-family: var(--mono);
  font-size: 21px;
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.fact__label {
  margin-top: 4px;
  font-family: var(--sans);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px 34px;
  margin-top: 54px;
}

.hero__aside {
  margin-top: 22px;
  font-family: var(--sans);
  font-size: 12.5px;
  color: var(--dim);
  letter-spacing: 0.04em;
}

/* 分区 */
.band {
  padding: clamp(46px, 6.5vw, 86px) 0;
  border-top: 1px solid var(--rule);
}

.band__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: 0.03em;
}

.band__lead {
  max-width: 32em;
  margin-top: 18px;
  color: var(--lead);
  font-size: 16.5px;
  line-height: 2;
}

/* 对照表 */
.compare {
  margin-top: 38px;
  border-top: 1px solid var(--rule);
}

.compare__row {
  display: grid;
  grid-template-columns: 8.5em 1fr;
  gap: 8px 26px;
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
}

.compare__key {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
  padding-top: 3px;
}

.compare__val {
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--fg);
}

.compare__val em {
  font-style: normal;
  color: var(--dim);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

/* 步骤 */
.steps {
  margin-top: 40px;
  border-top: 1px solid var(--rule);
}

.step {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 22px;
  padding: 26px 0;
  border-bottom: 1px solid var(--rule);
}

.step__num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
  padding-top: 6px;
}

.step__title {
  font-size: 17px;
  letter-spacing: 0.02em;
}

.step__body {
  margin-top: 8px;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--lead);
}

/* 目录预览 */
.toc {
  margin-top: 38px;
}

.toc__row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 0;
  border-bottom: 1px solid var(--rule);
}

.toc__num {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--accent);
  letter-spacing: 0.1em;
  flex: none;
  width: 2.2em;
}

.toc__title {
  font-size: 16.5px;
  flex: none;
}

.toc__dots {
  flex: 1;
  border-bottom: 1px dotted var(--faint);
  transform: translateY(-5px);
  min-width: 20px;
}

.toc__count {
  font-family: var(--sans);
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.1em;
  flex: none;
}

/* 问答 */
.faq {
  margin-top: 34px;
  border-top: 1px solid var(--rule);
}

.faq details {
  border-bottom: 1px solid var(--rule);
}

.faq summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  font-size: 16.5px;
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  font-family: var(--mono);
  color: var(--accent);
  font-size: 15px;
  flex: none;
}

.faq details[open] summary::after {
  content: "–";
}

.faq__body {
  padding: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--lead);
  max-width: 44em;
}

/* 价格条 */
.price {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 16px 28px;
  margin-top: 36px;
}

.price__value {
  font-family: var(--serif);
  font-size: 46px;
  line-height: 1;
  letter-spacing: 0.02em;
}

.price__note {
  font-family: var(--sans);
  font-size: 12.5px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

/* --------------------------------------------------------------- 测试界面 */
.test-top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

.test-top.is-scrolled {
  border-bottom-color: var(--rule);
}

.test-top__inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 0 16px;
}

.test-top__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.test-top__part {
  color: var(--accent);
}

.progress {
  position: relative;
  height: 2px;
  background: var(--faint);
  overflow: hidden;
}

.progress__fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.55s var(--ease);
}

.q {
  max-width: var(--measure);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: calc(100vh - 72px);
  padding: clamp(38px, 7vh, 84px) 0 clamp(40px, 8vh, 90px);
}

.q__part {
  margin-left: auto;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.q__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.q__index {
  color: var(--accent);
}

.q__prompt {
  margin-top: 20px;
  font-size: clamp(1.35rem, 2.8vw, 1.8rem);
  line-height: 1.72;
  letter-spacing: 0.01em;
}

.q__hint {
  margin-top: 16px;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 32em;
}

.opts {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.opt {
  position: relative;
  display: block;
  width: 100%;
  padding: 20px 0 20px 46px;
  border: 0;
  border-bottom: 1px solid var(--rule);
  background: none;
  color: var(--fg);
  font-family: var(--serif);
  font-size: 17.5px;
  line-height: 1.75;
  text-align: left;
  cursor: pointer;
  transition: padding-left 0.3s var(--ease), color 0.25s;
}

.opt::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: center top;
  transition: transform 0.3s var(--ease);
}

.opt__idx {
  position: absolute;
  left: 0;
  top: 23px;
  width: 34px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--dim);
  transition: color 0.25s;
}

.opt:hover {
  padding-left: 58px;
}

.opt:hover::before,
.opt.is-picked::before {
  transform: scaleY(1);
}

.opt:hover .opt__idx,
.opt.is-picked .opt__idx {
  color: var(--accent);
}

.opt.is-picked {
  color: var(--accent);
}

.q__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 34px;
  gap: 20px;
}

.q__back {
  border: 0;
  background: none;
  padding: 0;
  font-family: var(--sans);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  cursor: pointer;
}

.q__back:hover {
  color: var(--fg);
}

.q__back[hidden] {
  display: none;
}

/* --------------------------------------------------------------- 结果页 */
.res {
  padding: clamp(34px, 6vw, 64px) 0 0;
}

.res__screen + .res__screen {
  margin-top: clamp(60px, 9vw, 110px);
  padding-top: clamp(50px, 8vw, 90px);
  border-top: 1px solid var(--rule);
}

.res__kicker {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.res__kicker::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
  transform: translateY(-5px);
}

.res__name {
  margin-top: 22px;
  font-size: clamp(2.9rem, 8.6vw, 5.2rem);
  line-height: 1.02;
  letter-spacing: 0.06em;
}

.res__line {
  max-width: 28em;
  margin-top: 24px;
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  line-height: 1.95;
  color: var(--lead);
}

.res__pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 46px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.res__pair > div {
  background: var(--bg);
  padding: 22px 22px 24px;
}

.res__pair .k {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted);
}

.res__pair .v {
  margin-top: 10px;
  font-size: 21px;
  letter-spacing: 0.04em;
  line-height: 1.4;
}

.res__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 1px;
  margin-top: 40px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.cell {
  background: var(--bg);
  padding: 22px 20px 20px;
}

.cell__label {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
  line-height: 1.6;
}

.cell__value {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 30px;
  line-height: 1.1;
  letter-spacing: 0.01em;
}

.cell__value small {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--dim);
  margin-left: 4px;
  letter-spacing: 0.06em;
}

.cell__note {
  margin-top: 8px;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.7;
  color: var(--dim);
}

.res__quote {
  margin-top: 44px;
  padding-left: 26px;
  border-left: 2px solid var(--accent);
  font-size: 19px;
  line-height: 1.95;
  color: var(--fg);
}

.res__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 30px;
  margin-top: 46px;
}

.res__note {
  margin-top: 18px;
  font-family: var(--sans);
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--dim);
  max-width: 34em;
}

/* 锁定面板 */
.locked {
  position: relative;
  margin-top: 40px;
  padding: 30px 28px 32px;
  border: 1px solid var(--rule-strong);
  background: var(--panel);
  overflow: hidden;
}

.locked__ghost {
  font-size: 15px;
  line-height: 2.1;
  color: var(--muted);
  filter: blur(5px);
  opacity: 0.6;
  user-select: none;
  pointer-events: none;
}

.locked::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, var(--bg) 96%);
  pointer-events: none;
}

.locked__body {
  position: relative;
  z-index: 1;
  margin-top: -34px;
}

.locked__title {
  font-size: 21px;
  letter-spacing: 0.03em;
}

.locked__text {
  margin-top: 12px;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--lead);
  max-width: 34em;
}

.locked__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 26px;
  margin-top: 26px;
}

/* --------------------------------------------------------------- 报告（相纸） */
.report-body {
  background: var(--bg);
}

.report {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(30px, 5vw, 56px) 0 clamp(60px, 9vw, 110px);
}

.report-head {
  padding-bottom: 34px;
  border-bottom: 1px solid var(--rule-strong);
}

.report-head__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.report-head__title {
  margin-top: 26px;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.16;
  letter-spacing: 0.05em;
}

.report-head__sub {
  margin-top: 18px;
  font-size: 16px;
  line-height: 1.95;
  color: var(--lead);
  max-width: 30em;
}

.report-head__sig {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 34px;
  margin-top: 30px;
  font-family: var(--sans);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.report-head__sig b {
  font-weight: 500;
  color: var(--fg);
}

/* 章 */
.ch {
  margin-top: clamp(52px, 8vw, 96px);
  padding-top: clamp(34px, 5vw, 54px);
  border-top: 1px solid var(--rule-strong);
}

.report > .ch:first-of-type {
  margin-top: clamp(26px, 3vw, 38px);
  padding-top: 0;
  border-top: 0;
}

.ch__num {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.3em;
  color: var(--accent);
}

.ch__title {
  margin-top: 14px;
  font-size: clamp(1.7rem, 4vw, 2.35rem);
  line-height: 1.32;
  letter-spacing: 0.04em;
}

.ch__lead {
  margin-top: 18px;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.95;
  color: var(--muted);
  max-width: 40em;
}

/* 节 */
.sec {
  margin-top: clamp(40px, 6vw, 62px);
}

.sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}

.sec__num {
  flex: none;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--accent);
  padding-top: 4px;
}

.sec__title {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

.sec__body {
  margin-top: 20px;
}

.report p {
  margin: 18px 0;
  line-height: 2;
  text-align: justify;
  text-justify: inter-character;
}

.report p + p {
  margin-top: 16px;
}

.report h3 {
  margin: 32px 0 6px;
  font-size: 16.5px;
  letter-spacing: 0.04em;
}

.report blockquote {
  margin: 34px 0;
  padding: 2px 0 2px 24px;
  border-left: 2px solid var(--accent);
}

.report blockquote p {
  font-size: 19px;
  line-height: 1.95;
  text-align: left;
  color: var(--fg);
}

.report blockquote cite {
  display: block;
  margin-top: 12px;
  font-family: var(--sans);
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.callout {
  margin: 30px 0;
  padding: 22px 24px;
  border: 1px solid var(--rule);
  background: var(--panel);
}

.callout__label {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 8px;
}

.callout p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.95;
  text-align: left;
}

.metric {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 30px 30px;
  margin: 32px 0;
  padding: 26px 0;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule);
}

.metric__item {
  display: block;
}

.metric__value {
  font-size: 42px;
  line-height: 1;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.metric__value small {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--muted);
  margin-left: 5px;
  letter-spacing: 0.04em;
}

.metric__unit {
  margin-left: 7px;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.metric__label {
  display: block;
  margin-top: 11px;
  font-family: var(--sans);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
  line-height: 1.7;
}

.metric__note {
  display: block;
  margin-top: 8px;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 22em;
}

.kv {
  margin: 28px 0;
  border-top: 1px solid var(--rule);
}

.kv__row {
  display: grid;
  grid-template-columns: 9.5em 1fr;
  gap: 6px 22px;
  padding: 15px 0;
  border-bottom: 1px solid var(--rule);
}

.kv__key {
  font-family: var(--sans);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
  line-height: 1.9;
}

.kv__val {
  font-size: 15.5px;
  line-height: 1.9;
}

.table-wrap {
  margin: 28px 0 30px;
  overflow-x: auto;
  border-top: 1px solid var(--rule);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.85;
}

.table th {
  padding: 13px 22px 11px 0;
  border-bottom: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-align: left;
  white-space: nowrap;
}

.table td {
  padding: 15px 22px 15px 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

.table th:last-child,
.table td:last-child {
  padding-right: 0;
}

.table td.td--key {
  width: 21%;
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--fg);
}

.table td.td--key + td {
  color: var(--lead);
}

.list {
  margin: 24px 0;
  padding: 0;
  list-style: none;
}

.list li {
  position: relative;
  margin: 12px 0;
  padding-left: 24px;
  line-height: 1.95;
}

.list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.95em;
  width: 5px;
  height: 5px;
  background: var(--accent);
}

.traits {
  margin: 30px 0;
}

.trait {
  padding: 20px 0 22px;
  border-top: 1px solid var(--rule);
}

.trait:last-child {
  border-bottom: 1px solid var(--rule);
}

.trait__title {
  font-family: var(--sans);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--teal);
}

.trait__body {
  margin-top: 8px;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--fg);
}

.tbl {
  width: 100%;
  margin: 28px 0;
  border-collapse: collapse;
  font-size: 15px;
}

.tbl th {
  padding: 0 10px 10px;
  border-bottom: 1px solid var(--rule-strong);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-align: left;
  color: var(--muted);
}

.tbl td {
  padding: 13px 10px;
  border-bottom: 1px solid var(--rule);
  line-height: 1.85;
  vertical-align: top;
}

.tbl td:first-child {
  white-space: nowrap;
  color: var(--fg);
  font-weight: 500;
}

/* 图表 */
.chart {
  margin: 36px 0;
}

.chart__head {
  padding-bottom: 10px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--rule);
}

.chart__title {
  font-family: var(--sans);
  font-size: 11.5px;
  letter-spacing: 0.24em;
  color: var(--muted);
}

.chart svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.chart__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-bottom: 14px;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

.legend-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 9px;
  border-radius: 50%;
  vertical-align: 1px;
}

.legend-dot--accent {
  background: var(--accent);
}

.legend-dot--ink {
  border: 1.5px solid var(--fg);
}

.chart__note {
  margin-top: 14px;
  font-family: var(--sans);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* SVG 图元配色（由 CSS 变量驱动，切换主题时自动适配） */
.chart .c-grid {
  stroke: var(--c-track);
  stroke-width: 1;
}

.chart .c-grid--mid {
  stroke: var(--c-muted);
  stroke-dasharray: 1 4;
  opacity: 0.7;
}

.chart .c-rule {
  stroke: var(--c-track);
}

.chart .c-guide {
  stroke: var(--c-accent);
  stroke-width: 1;
  stroke-dasharray: 3 4;
  opacity: 0.85;
}

.chart .c-link {
  stroke: var(--c-accent);
  stroke-width: 2;
  opacity: 0.55;
}

.chart .c-tick {
  fill: var(--c-muted);
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.chart .c-axis {
  fill: var(--c-ink);
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.chart .c-val {
  fill: var(--c-ink);
  font-family: var(--mono);
  font-size: 11px;
}

.chart .c-val--accent {
  fill: var(--c-accent);
}

.chart .c-track {
  fill: var(--c-track);
}

.chart .c-connector {
  fill: var(--c-muted);
  opacity: 0.5;
}

.chart .c-dot--ink {
  fill: none;
  stroke: var(--c-ink);
  stroke-width: 1.5;
}

.chart .c-dot--accent {
  fill: var(--c-accent);
}

.chart .c-band {
  fill: var(--c-track);
}

.chart .c-band--active {
  fill: var(--c-accent);
}

.chart .c-marker {
  fill: var(--c-ink);
}

.chart .c-marker-line {
  stroke: var(--c-ink);
  stroke-width: 1;
}

.chart .c-bar {
  fill: var(--c-muted);
  opacity: 0.35;
}

.chart .c-bar--mine {
  fill: var(--c-accent);
  opacity: 1;
}

/* 报告尾 */
.report-end {
  margin-top: clamp(56px, 8vw, 96px);
  padding-top: 34px;
  border-top: 1px solid var(--rule-strong);
  font-family: var(--sans);
  font-size: 12.5px;
  line-height: 2;
  color: var(--muted);
}

.report-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 26px;
  margin-top: 30px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--dim);
}

/* --------------------------------------------------------------- 解锁 / 状态页 */
.gate {
  max-width: 560px;
  margin: 0 auto;
  padding: clamp(70px, 12vh, 140px) 0 80px;
}

.gate__code {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.gate__title {
  margin-top: 20px;
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  line-height: 1.35;
}

.gate__text {
  margin-top: 20px;
  font-size: 16px;
  line-height: 2;
  color: var(--lead);
}

.gate__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  margin-top: 36px;
}

/* --------------------------------------------------------------- 过渡动画（只做一次） */
.develop {
  opacity: 0;
  transform: translateY(10px);
  animation: develop 0.9s var(--ease) forwards;
}

.develop--2 {
  animation-delay: 0.12s;
}

.develop--3 {
  animation-delay: 0.24s;
}

@keyframes develop {
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .develop {
    opacity: 1;
    transform: none;
  }
}

/* --------------------------------------------------------------- 响应式 */
@media (max-width: 720px) {
  body {
    font-size: 16px;
  }

  .site-head {
    flex-wrap: wrap;
    gap: 10px 18px;
    padding-top: 20px;
  }

  .site-head__brand {
    font-size: 12.5px;
    letter-spacing: 0.14em;
  }

  .hero__title {
    font-size: clamp(30px, 8.4vw, 40px);
    line-height: 1.22;
    letter-spacing: 0.02em;
  }

  .hero__lead {
    margin-top: 26px;
    font-size: 16.5px;
    line-height: 1.95;
  }

  .hero__facts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px 18px;
    margin-top: 34px;
  }

  .fact__value {
    font-size: 19px;
  }

  .fact__label {
    letter-spacing: 0.1em;
  }

  .compare__row,
  .kv__row {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 16px 0;
  }

  .compare__key,
  .kv__key {
    padding-top: 0;
    letter-spacing: 0.06em;
  }

  .step {
    grid-template-columns: 44px 1fr;
    gap: 16px;
  }

  .res__pair {
    grid-template-columns: 1fr;
  }

  .site-head nav {
    flex-wrap: wrap;
    gap: 16px;
  }

  .site-head nav a {
    font-size: 11.5px;
    letter-spacing: 0.06em;
  }

  .report blockquote p {
    font-size: 17.5px;
  }

  .opt {
    font-size: 16.5px;
    padding-left: 40px;
  }

  .opt__idx {
    width: 30px;
  }

  .metric {
    grid-template-columns: 1fr 1fr;
    gap: 24px 18px;
  }

  .metric__value {
    font-size: 34px;
  }

  .table th,
  .table td {
    padding-right: 14px;
    font-size: 14px;
  }

  .table td.td--key {
    width: 30%;
  }

  .info-table {
    display: block;
    overflow-x: auto;
  }
}

@media (max-width: 420px) {
  .hero__facts {
    gap: 18px 30px;
  }

  .res__grid {
    grid-template-columns: 1fr 1fr;
  }

  .cell__value {
    font-size: 26px;
  }
}

/* --------------------------------------------------------------- 打印（A4） */
@media print {
  @page {
    size: A4;
    margin: 17mm 15mm;
  }

  body {
    background: #fff;
    color: #111;
    font-size: 10.5pt;
    line-height: 1.85;
  }

  .site-head,
  .site-foot,
  .no-print,
  .locked,
  .res__actions {
    display: none !important;
  }

  .report {
    max-width: none;
    padding: 0;
  }

  .rep-ch {
    break-before: page;
    border-top: 0;
    padding-top: 0;
    margin-top: 0;
  }

  .rep-ch:first-of-type {
    break-before: auto;
  }

  .rep-sec,
  .chart,
  .callout,
  .trait,
  .metric,
  .table-wrap,
  .kv__row,
  blockquote {
    break-inside: avoid;
  }

  .rep-sec__title,
  .rep-ch__title {
    break-after: avoid;
  }

  a {
    text-decoration: none;
    color: inherit;
  }

  .chart svg {
    max-height: 92mm;
  }
}