/* 知效 · 首页与共创页样式
   只有 index.html / co-create.html 加载；对话页与后台只加载 app.css。 */

/* ---------------- 首页 · 编辑式书页 ---------------- */

.home-page {
  min-height: 100dvh;
  background:
    radial-gradient(1200px 620px at 18% -12%, #fbf7ee 0%, rgba(251, 247, 238, 0) 62%),
    radial-gradient(900px 500px at 100% 0%, #f1eadc 0%, rgba(241, 234, 220, 0) 55%),
    var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}
.home-page a { color: inherit; }
.home-page .brand { padding: 0; text-decoration: none; color: inherit; }

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: .045;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.4'/%3E%3C/svg%3E");
}
.home-page > header,
.home-page > main,
.home-page > footer { position: relative; z-index: 2; }

.home-page a:focus-visible,
.home-page button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.home-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: 22px 40px;
  border-bottom: 1px solid var(--line);
}
.home-nav .brand { display: flex; align-items: center; gap: 11px; }
.home-nav .brand strong {
  display: block;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: .1em;
}
.home-nav .brand small {
  display: block;
  margin-top: 1px;
  font-size: 8px;
  letter-spacing: .16em;
  color: var(--muted);
}
.home-nav__links {
  display: flex;
  gap: 26px;
  margin-left: auto;
  font-size: 13px;
  color: var(--muted);
}
.home-nav__links a {
  position: relative;
  padding: 6px 0;
  text-decoration: none;
}
.home-nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--accent);
  transition: right .22s cubic-bezier(.16, 1, .3, 1);
}
.home-nav__links a:hover { color: var(--ink); }
.home-nav__links a:hover::after { right: 0; }
.home-nav__actions { display: flex; align-items: center; gap: 10px; }
.home-user {
  max-width: 120px;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.nav-ghost,
.nav-solid {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 15px;
  border-radius: 8px;
  font-size: 13px;
  text-decoration: none;
  transition: background .16s ease, border-color .16s ease, color .16s ease;
}
.nav-ghost {
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
}
.nav-ghost:hover { border-color: var(--accent); color: var(--accent); }
.nav-solid {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: var(--paper) !important;
}
.nav-solid:hover { background: #254b3c; border-color: #254b3c; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(340px, .75fr);
  gap: 56px;
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: 78px 40px 66px;
}
.hero__main { min-width: 0; }
.hero .eyebrow { margin-bottom: 26px; }
.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(54px, 8.4vw, 112px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -.035em;
}
.h1-accent { color: var(--accent); }
.hero__lede {
  max-width: 520px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.95;
}
.hero__actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 38px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--paper) !important;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  text-decoration: none;
  transition: transform .18s ease, background .18s ease;
}
.btn-primary:hover { background: #254b3c; transform: translateY(-1px); }
.btn-primary span { font-size: 15px; transition: transform .18s ease; }
.btn-primary:hover span { transform: translateX(3px); }
.hero__aside {
  align-self: end;
  min-width: 0;
}
.hairline {
  width: min(1240px, calc(100% - 80px));
  margin: 0 auto;
  border-top: 1px solid var(--line);
}

.section-kicker {
  margin: 0 0 22px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.manifesto {
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: 92px 40px 84px;
}
.manifesto__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 70px;
  align-items: start;
}
.manifesto h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(42px, 5.2vw, 68px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.025em;
}
.manifesto__copy { max-width: 470px; padding-top: 8px; }
.manifesto__copy p {
  margin: 0 0 18px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.95;
}
.manifesto__copy p:last-child { margin-bottom: 0; color: var(--muted); }

.how {
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: 20px 40px 96px;
}
.how__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  padding-bottom: 30px;
}
.how__head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(36px, 4.4vw, 56px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.02em;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}
.step {
  padding: 30px 30px 0 0;
  border-right: 1px solid var(--line);
}
.step:last-child { border-right: 0; padding-right: 0; }
.step__num {
  display: block;
  margin-bottom: 24px;
  color: rgba(47, 93, 74, .26);
  font-family: "Bodoni 72", Didot, var(--serif);
  font-size: 58px;
  line-height: .8;
  letter-spacing: -.02em;
}
.step h3 {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
}
.step p {
  margin: 0;
  max-width: 300px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.85;
}

.quote-block {
  position: relative;
  padding: 96px 40px 92px;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}
.quote-block::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(700px 300px at 85% 10%, rgba(47, 93, 74, .35), transparent 70%),
    radial-gradient(500px 260px at 8% 100%, rgba(180, 85, 47, .16), transparent 70%);
}
.quote-block > * { position: relative; z-index: 1; }
.quote-mark {
  display: block;
  width: min(1100px, 100%);
  margin: 0 auto -28px;
  color: rgba(244, 241, 234, .14);
  font-family: "Bodoni 72", Didot, var(--serif);
  font-size: 150px;
  line-height: .7;
}
.quote-block blockquote {
  width: min(1100px, 100%);
  margin: 0 auto;
  font-family: var(--serif);
  font-size: clamp(30px, 4.6vw, 54px);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: -.02em;
}
.quote-by {
  width: min(1100px, 100%);
  margin: 30px auto 0;
  color: rgba(244, 241, 234, .58);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  letter-spacing: .18em;
}

.cta-final {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, .6fr);
  gap: 50px;
  align-items: end;
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: 96px 40px 104px;
}
.cta-final h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(42px, 5.6vw, 74px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.03em;
}
.cta-final__side { padding-bottom: 8px; }
.cta-final__side .btn-primary { width: 100%; }
.cta-final__side p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 11.5px;
  letter-spacing: .04em;
  text-align: center;
}

.home-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: 22px 40px 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11.5px;
}
.home-footer nav { display: flex; gap: 18px; }
.home-footer a { color: var(--muted); text-decoration: none; }
.home-footer a:hover { color: var(--accent); }

/* 首页入场 */
html.js .reveal {
  opacity: 0;
  transform: translateY(18px);
}
html.js .reveal.in {
  opacity: 1;
  transform: none;
  transition: opacity .62s cubic-bezier(.16, 1, .3, 1), transform .62s cubic-bezier(.16, 1, .3, 1);
}
@media (prefers-reduced-motion: reduce) {
  html.js .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------------- 首页 · 动效层 ---------------- */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  height: 2px;
  pointer-events: none;
}
.scroll-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
  transition: width .08s linear;
}

.hero { position: relative; }
.hero-glow {
  position: absolute;
  inset: -8% -6% 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(
    560px 380px at var(--mx, 72%) var(--my, 28%),
    rgba(47, 93, 74, .14),
    rgba(47, 93, 74, 0) 68%
  );
  opacity: .9;
  transition: opacity .35s ease;
}
.hero__main,
.hero__aside { position: relative; z-index: 1; }

/* 标题逐行升起 */
.hero-title { position: relative; }
.h1-line {
  display: block;
  overflow: hidden;
  padding: 0 .08em .08em 0;
  margin-bottom: -.08em;
}
.h1-line > span { display: inline-block; }

html.js .h1-line > span {
  opacity: 0;
  transform: translateY(112%) rotate(1.6deg);
  transform-origin: left bottom;
  transition:
    transform 1.05s cubic-bezier(.16, 1, .3, 1),
    opacity .8s cubic-bezier(.16, 1, .3, 1);
  will-change: transform;
}
html.js .h1-line.in > span { opacity: 1; transform: translateY(0) rotate(0); }

/* 索引逐条入场 */
html.js .hero__aside li {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity .55s cubic-bezier(.16, 1, .3, 1),
    transform .55s cubic-bezier(.16, 1, .3, 1);
}
html.js .hero__aside.in li { opacity: 1; transform: none; }
html.js .hero__aside.in li:nth-child(1) { transition-delay: .18s; }
html.js .hero__aside.in li:nth-child(2) { transition-delay: .27s; }
html.js .hero__aside.in li:nth-child(3) { transition-delay: .36s; }

/* 印章轻微悬浮 */
.index-seal { animation: sealFloat 7s ease-in-out infinite alternate; }
@keyframes sealFloat {
  from { transform: rotate(-1.5deg) translateY(0); }
  to { transform: rotate(-1.5deg) translateY(-6px); }
}

/* 向下滚动提示 */
.hero-scroll {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 56px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9px;
  letter-spacing: .18em;
  text-decoration: none;
}
.hero-scroll:hover { color: var(--accent); text-decoration: none; }
.hero-scroll i {
  position: relative;
  display: block;
  width: 1px;
  height: 42px;
  overflow: hidden;
  background: var(--line);
}
.hero-scroll i::after {
  content: "";
  position: absolute;
  top: -60%;
  left: 0;
  width: 1px;
  height: 55%;
  background: var(--accent);
  animation: scrollLine 2.1s cubic-bezier(.65, 0, .35, 1) infinite;
}
@keyframes scrollLine {
  0% { transform: translateY(0); }
  70%, 100% { transform: translateY(300%); }
}

/* 章节小标题：短横线 */
.section-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-kicker::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
  opacity: .7;
}

/* 宣言标题下划线 */
.manifesto h2 { position: relative; }
html.js .manifesto h2::after {
  content: "";
  display: block;
  width: 56px;
  height: 2px;
  margin-top: 26px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .8s cubic-bezier(.16, 1, .3, 1) .18s;
}
html.js .manifesto h2.in::after { transform: scaleX(1); }

/* 步骤悬停 */
.step,
.step__num,
.step h3 { transition: transform .3s ease, color .3s ease; }
.step:hover { transform: translateY(-4px); }
.step:hover .step__num { color: var(--accent); transform: translateY(-3px); }
.step:hover h3 { color: var(--accent); }

/* 引言逐行 */
.quote-line { display: block; }

html.js .quote-line {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity .65s cubic-bezier(.16, 1, .3, 1),
    transform .65s cubic-bezier(.16, 1, .3, 1);
}
html.js blockquote.in .quote-line { opacity: 1; transform: none; }
html.js blockquote.in .quote-line:nth-child(2) { transition-delay: .14s; }

/* 主按钮高光扫过 */
.btn-primary {
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: "";
  position: absolute;
  top: -60%;
  bottom: -60%;
  left: -70%;
  width: 36%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .22), transparent);
  transform: skewX(-18deg);
  transition: left .65s cubic-bezier(.16, 1, .3, 1);
  pointer-events: none;
}
.btn-primary:hover::after { left: 135%; }

@media (hover: none) {
  .hero-glow { display: none; }
  .hero-scroll { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .h1-line > span,
  .hero__aside li,
  .quote-line {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .hero-scroll i::after { animation: none; }
  .hero-rule i { animation: none; transform: scaleX(1); }
  .manifesto h2::after { transform: scaleX(1); transition: none; }
  .btn-primary::after { display: none; }
  .step,
  .step__num,
  .step h3 { transition: none; }
}

/* 索引视差：只动 transform */
html.js .hero__aside.reveal {
  transform: translateY(calc(18px + var(--py, 0px)));
}
html.js .hero__aside.reveal.in {
  transform: translateY(var(--py, 0px));
  transition: opacity .62s cubic-bezier(.16, 1, .3, 1), transform .18s linear;
}

/* ---------------- 首页 v2 · 数据 / 案例 / 共创 ---------------- */

.hero__ledger { align-self: end; }

/* 首屏示例卡：先让人看见「它长什么样」，再看数字 */
.specimen {
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background:
    radial-gradient(120% 100% at 0% 0%, rgba(255, 255, 255, .72), transparent 58%),
    linear-gradient(160deg, rgba(251, 249, 244, .94), rgba(246, 242, 233, .84));
  box-shadow: 0 20px 48px -38px rgba(30, 34, 29, .55);
}
.specimen__head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 15px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9px;
  letter-spacing: .12em;
}
.specimen__thread {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 16px 15px 14px;
}
.bubble {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.85;
}
.bubble--q {
  align-self: flex-end;
  max-width: 94%;
  padding: 9px 12px;
  border-radius: 11px 11px 3px 11px;
  background: var(--accent);
  color: var(--paper);
}
.bubble--a {
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 11px 11px 11px 3px;
  background: var(--surface);
  color: var(--ink-soft);
}
.bubble--a b {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.specimen__foot {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px 15px 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 9.5px;
  letter-spacing: .02em;
}
.ledger-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.ledger-strip > div { padding-right: 10px; }
.ledger-strip > div + div {
  padding-left: 12px;
  border-left: 1px solid var(--line);
}
.ledger-strip b {
  display: block;
  color: var(--accent);
  font-family: "Bodoni 72", Didot, var(--serif);
  font-size: clamp(26px, 2.7vw, 34px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.ledger-strip span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.6;
}
.ledger-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 10.5px;
  letter-spacing: .04em;
}

.work {
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: 20px 40px 96px;
}
.work__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.work__head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(36px, 4.4vw, 56px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.work__note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: .05em;
}
.ledger-live {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(47, 93, 74, .1);
  animation: ledgerPulse 2.6s ease-in-out infinite;
}
@keyframes ledgerPulse {
  0%, 100% { opacity: .4; transform: scale(.9); }
  50% { opacity: 1; transform: scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .ledger-live { animation: none; opacity: 1; }
}

.case-list {
  margin-top: 34px;
  border-top: 1px solid var(--line-strong);
}
.case-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto 26px;
  grid-template-areas: "num body meta arrow";
  gap: 24px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
  transition: background .22s ease, padding .22s ease;
}
.case-row:hover { background: rgba(251, 249, 244, .72); }
.case-row:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.case-num {
  grid-area: num;
  color: var(--muted);
  font-family: "Bodoni 72", Didot, var(--serif);
  font-size: 21px;
  letter-spacing: .02em;
  font-variant-numeric: tabular-nums;
  transition: color .22s ease;
}
.case-row:hover .case-num { color: var(--accent); }
.case-body { grid-area: body; min-width: 0; }
.case-body h3 {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-size: 23px;
  font-weight: 600;
  letter-spacing: .01em;
}
.case-body p {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.8;
}
.case-meta {
  grid-area: meta;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  white-space: nowrap;
}
.case-tag {
  padding: 4px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 10.5px;
  letter-spacing: .04em;
  transition: border-color .22s ease, color .22s ease;
}
.case-row:hover .case-tag { border-color: var(--accent); color: var(--accent); }
.case-stat,
.case-proof {
  font-size: 10.5px;
  letter-spacing: .04em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.case-proof { color: var(--accent); }
.case-arrow {
  grid-area: arrow;
  color: var(--muted);
  font-size: 15px;
  opacity: .22;
  transform: translateX(0);
  transition: opacity .22s ease, transform .22s ease, color .22s ease;
}
.case-row:hover .case-arrow,
.case-row:focus-visible .case-arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--accent);
}
.case-empty {
  margin-top: 34px;
  padding: 34px 26px;
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  background: rgba(251, 249, 244, .45);
  text-align: center;
}
.case-empty p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.8;
}
.case-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: .03em;
}

.co-create {
  position: relative;
  padding: 96px 40px;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
}
.co-create::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(760px 340px at 88% 4%, rgba(47, 93, 74, .38), transparent 68%),
    radial-gradient(540px 280px at 4% 100%, rgba(180, 85, 47, .15), transparent 70%);
}
.co-create__inner {
  position: relative;
  z-index: 1;
  width: min(1240px, 100%);
  margin: 0 auto;
}
.co-create .section-kicker { color: rgba(244, 241, 234, .52); }
.co-create .section-kicker::before { background: var(--accent-soft); }
.co-create__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 70px;
  /* 右侧信息更长，标题居中对齐，别让左边空一大片 */
  align-items: center;
}
.co-create h2 {
  margin: 0;
  /* 移动端换行别把最后一个字单独甩到下一行 */
  text-wrap: balance;
  color: var(--paper);
  font-family: var(--serif);
  font-size: clamp(42px, 5.6vw, 70px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.03em;
}
.co-create__copy p {
  max-width: 480px;
  margin: 0 0 26px;
  color: rgba(244, 241, 234, .66);
  font-size: 15px;
  line-height: 1.9;
}
.co-steps {
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(244, 241, 234, .14);
}
.co-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(244, 241, 234, .14);
  color: rgba(244, 241, 234, .8);
  font-size: 13.5px;
}
.co-steps span {
  color: var(--accent-soft);
  font-family: "Bodoni 72", Didot, var(--serif);
  font-size: 12px;
  letter-spacing: .04em;
}
.co-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  padding-top: 24px;
  border-top: 1px solid rgba(244, 241, 234, .14);
}
.co-contact__label {
  width: 100%;
  color: rgba(244, 241, 234, .45);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9.5px;
  letter-spacing: .16em;
}
.co-phone {
  color: var(--paper) !important;
  font-family: "Bodoni 72", Didot, var(--serif);
  font-size: clamp(32px, 3.4vw, 42px);
  line-height: 1;
  letter-spacing: -.01em;
  text-decoration: none;
  font-variant-numeric: tabular-nums;
  transition: color .2s ease;
}
.co-phone:hover { color: #cfe0d4; }
.co-contact__note {
  flex: 1;
  min-width: 140px;
  align-self: flex-end;
  margin: 0 0 5px;
  text-align: right;
  color: rgba(244, 241, 234, .5);
  font-size: 12px;
  line-height: 1.7;
}
.co-create .btn-primary {
  margin-left: auto;
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink) !important;
}
.co-create .btn-primary:hover { background: #fff; border-color: #fff; }
.co-create .btn-primary::after {
  background: linear-gradient(90deg, transparent, rgba(30, 34, 29, .12), transparent);
}

@media (max-width: 980px) {
  .co-create__grid { grid-template-columns: 1fr; gap: 34px; }
  .co-create h2 br { display: none; }
}

@media (max-width: 720px) {
  .work { padding: 0 18px 64px; }
  .work__note { margin: 10px 0 0; }
  .case-row {
    grid-template-columns: 34px minmax(0, 1fr) 18px;
    grid-template-areas: "num body arrow" "num meta arrow";
    gap: 6px 14px;
    padding: 20px 0;
  }
  .case-num { font-size: 17px; align-self: start; margin-top: 3px; }
  .case-body h3 { font-size: 21px; }
  .case-body p { font-size: 13px; }
  .case-meta { justify-content: flex-start; gap: 10px; margin-top: 4px; flex-wrap: wrap; white-space: normal; }
  .case-arrow { opacity: 1; transform: none; align-self: center; }
  .case-empty { padding: 26px 18px; }
  .co-create { padding: 64px 18px; }
  .co-contact { gap: 14px; }
  .co-create .btn-primary { width: 100%; margin-left: 0; }
  .ledger-num { font-size: 44px; }
}

/* ---------------- 首页 v3 · 更克制的细节动效 ---------------- */

.home-page { position: relative; }
.home-page::before {
  content: "";
  position: fixed;
  z-index: 0;
  top: -28vw;
  left: -18vw;
  width: 72vw;
  height: 72vw;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(47, 93, 74, .10), rgba(47, 93, 74, 0) 66%);
  filter: blur(24px);
  animation: ambientDrift 26s ease-in-out infinite alternate;
}
@keyframes ambientDrift {
  to { transform: translate3d(9vw, 7vh, 0) scale(1.08); }
}

/* 标题字距落定 + 短线绘制 */
html.js .h1-line > span {
  letter-spacing: .03em;
  transition:
    transform 1.05s cubic-bezier(.16, 1, .3, 1),
    opacity .8s cubic-bezier(.16, 1, .3, 1),
    letter-spacing 1.35s cubic-bezier(.16, 1, .3, 1);
}
html.js .h1-line.in > span { letter-spacing: -.035em; }

.hero-rule {
  width: 72px;
  height: 1px;
  margin-top: 24px;
  overflow: hidden;
  background: var(--line);
}
.hero-rule i {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  animation: ruleDraw 1.1s 1.05s cubic-bezier(.16, 1, .3, 1) forwards;
}
@keyframes ruleDraw {
  to { transform: scaleX(1); }
}
.hero-rule + .hero__lede { margin-top: 22px; }

/* LEDGER 行错峰 */
html.js .hero__ledger .ledger-row {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity .55s cubic-bezier(.16, 1, .3, 1),
    transform .55s cubic-bezier(.16, 1, .3, 1);
}
html.js .hero__ledger.in .ledger-row { opacity: 1; transform: none; }
html.js .hero__ledger.in .ledger-row:nth-child(1) { transition-delay: .16s; }
html.js .hero__ledger.in .ledger-row:nth-child(2) { transition-delay: .25s; }
html.js .hero__ledger.in .ledger-row:nth-child(3) { transition-delay: .34s; }

/* 宣言关键词高亮 */
.mark {
  padding: 0 .04em;
  background-image: linear-gradient(var(--accent-soft), var(--accent-soft));
  background-repeat: no-repeat;
  background-position: 0 92%;
  background-size: 100% 18%;
}
html.js .mark {
  background-size: 0% 18%;
  transition: background-size .9s cubic-bezier(.16, 1, .3, 1) .3s;
}
html.js .manifesto h2.in .mark { background-size: 100% 18%; }

/* 案例 / 步骤错峰 */
.case-row.reveal:nth-child(2) { transition-delay: .08s; }
.case-row.reveal:nth-child(3) { transition-delay: .16s; }
.steps .step.reveal:nth-child(2) { transition-delay: .08s; }
.steps .step.reveal:nth-child(3) { transition-delay: .16s; }

/* 分隔线绘制 */
html.js .reveal-line {
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.05s cubic-bezier(.16, 1, .3, 1);
}
html.js .reveal-line.in { transform: scaleX(1); }

/* 章节标题字距落定 */
html.js .manifesto h2.reveal,
html.js .work h2.reveal,
html.js .how h2.reveal,
html.js .co-create h2.reveal,
html.js .cta-final h2.reveal {
  letter-spacing: .008em;
  transition:
    opacity .62s cubic-bezier(.16, 1, .3, 1),
    transform .62s cubic-bezier(.16, 1, .3, 1),
    letter-spacing 1s cubic-bezier(.16, 1, .3, 1);
}
html.js .manifesto h2.reveal.in,
html.js .work h2.reveal.in,
html.js .how h2.reveal.in,
html.js .co-create h2.reveal.in,
html.js .cta-final h2.reveal.in { letter-spacing: -.025em; }

/* 电话下划线 */
.co-phone { position: relative; display: inline-block; }
.co-phone::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -7px;
  height: 1px;
  background: var(--accent-soft);
  transition: right .32s cubic-bezier(.16, 1, .3, 1);
}
.co-phone:hover::after { right: 0; }

@media (prefers-reduced-motion: reduce) {
  .home-page::before { animation: none; }
  .hero-rule i { animation: none; transform: scaleX(1); }
  html.js .h1-line > span { letter-spacing: -.035em; }
  html.js .hero__ledger .ledger-row { opacity: 1; transform: none; transition: none; }
  html.js .mark { background-size: 100% 18%; transition: none; }
  html.js .reveal-line { transform: none; transition: none; }
  html.js .manifesto h2.reveal,
  html.js .work h2.reveal,
  html.js .how h2.reveal,
  html.js .co-create h2.reveal,
  html.js .cta-final h2.reveal { letter-spacing: -.025em; transition: none; }
  .co-phone::after { display: none; }
  .case-row.reveal:nth-child(2),
  .case-row.reveal:nth-child(3),
  .steps .step.reveal:nth-child(2),
  .steps .step.reveal:nth-child(3) { transition-delay: 0s; }
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

/* ============================================================
   共创计划独立页 / co-create.html
   方向：编辑式招募页。暖纸 + 宋体 + 墨绿，深色区块只用于「车间」。
   ============================================================ */

.co-page {
  background:
    radial-gradient(900px 420px at 50% -12%, #faf7f0 0%, rgba(250, 247, 240, 0) 62%),
    var(--paper);
}

/* --- 子导航 --- */
.co-subnav {
  position: sticky;
  top: 72px;
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 241, 234, .86);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
}
.co-subnav__inner {
  display: flex;
  gap: 26px;
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: 11px 40px;
  overflow-x: auto;
  scrollbar-width: none;
}
.co-subnav__inner::-webkit-scrollbar { display: none; }
.co-subnav a {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 11.5px;
  letter-spacing: .06em;
  text-decoration: none;
  transition: color .18s ease;
}
.co-subnav a:hover,
.co-subnav a.on { color: var(--accent); }

/* --- 开场 --- */
.co-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  gap: 64px;
  align-items: end;
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: 84px 40px 76px;
}
.co-title {
  margin: 18px 0 26px;
  font-family: var(--serif);
  font-size: clamp(44px, 6.6vw, 88px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -.04em;
}
.co-line { display: block; overflow: hidden; padding: 0 .1em .1em 0; margin-bottom: -.08em; }
.co-line > span { display: inline-block; }
html.js .co-line > span {
  opacity: 0;
  transform: translateY(112%) rotate(1.4deg);
  transform-origin: left bottom;
  transition: transform 1.05s cubic-bezier(.16, 1, .3, 1), opacity .8s cubic-bezier(.16, 1, .3, 1);
}
html.js .co-line.in > span { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html.js .co-line > span { opacity: 1; transform: none; transition: none; }
}
.co-title em {
  position: relative;
  font-style: normal;
  color: var(--accent);
}
.co-title em::after {
  content: "";
  position: absolute;
  left: 0;
  right: .04em;
  bottom: .04em;
  height: .07em;
  background: currentColor;
  opacity: .28;
}
.co-lede {
  max-width: 34em;
  margin: 0 0 14px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.95;
}
.co-lede--strong { color: var(--ink); font-weight: 500; }
.co-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 30px;
}

/* --- 右侧台账 --- */
.co-facts {
  padding: 22px 22px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: rgba(251, 249, 244, .62);
}
.co-facts__label {
  margin: 0 0 16px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9.5px;
  letter-spacing: .16em;
}
.co-fact {
  padding: 13px 0;
  border-top: 1px solid var(--line);
}
.co-fact b {
  display: block;
  font-family: "Bodoni 72", Didot, var(--serif);
  font-size: clamp(30px, 3.4vw, 40px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.co-fact b span { font-family: var(--sans); font-size: 13px; font-weight: 400; color: var(--muted); letter-spacing: 0; }
.co-fact > span {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.7;
}
.co-fact--warn b { color: #9c4a2a; }
.co-facts__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.7;
}

/* --- 通用 section --- */
.co-section {
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: 84px 40px;
  border-top: 1px solid var(--line);
}
.co-section--tight { padding-bottom: 96px; }
.co-head {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  margin-bottom: 42px;
}
.co-num {
  color: var(--muted);
  font-family: "Bodoni 72", Didot, var(--serif);
  font-size: 13px;
  letter-spacing: .06em;
  padding-top: 10px;
  border-top: 1px solid var(--line-strong);
}
.co-head h2 {
  margin: 12px 0 0;
  font-family: var(--serif);
  font-size: clamp(34px, 4.6vw, 58px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -.03em;
}

/* --- 问题 --- */
.co-problem__lede {
  max-width: 46em;
  margin: 0 0 34px;
  font-family: var(--serif);
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.6;
  color: var(--ink-soft);
}
.co-problem__lede strong { color: var(--accent); font-weight: 600; }
.co-gaps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 56px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}
.co-gaps li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 16px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.co-gaps li > span {
  color: var(--muted);
  font-family: "Bodoni 72", Didot, var(--serif);
  font-size: 13px;
  letter-spacing: .04em;
  padding-top: 4px;
}
.co-gaps h3 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
}
.co-gaps p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
}
.co-insight {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 22px;
  margin: 38px 0 0;
  padding: 26px 28px;
  border-left: 2px solid var(--accent);
  background: rgba(47, 93, 74, .05);
  font-family: var(--serif);
  font-size: clamp(17px, 1.9vw, 21px);
  line-height: 1.7;
}
.co-insight span {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9.5px;
  letter-spacing: .14em;
  line-height: 2.2;
}

/* --- 深色车间 --- */
.co-dark {
  width: 100%;
  max-width: none;
  padding: 84px max(40px, calc((100vw - 1240px) / 2 + 40px)) 88px;
  background: var(--ink);
  color: var(--paper);
  border-top: 0;
}
.co-dark .co-head h2 { color: var(--paper); }
.co-dark .co-num { color: rgba(244, 241, 234, .45); border-top-color: rgba(244, 241, 234, .2); }
.co-dark .section-kicker { color: rgba(244, 241, 234, .5); }
.co-dark .section-kicker::before { background: var(--accent-soft); }
.co-steps--flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  border-top: 1px solid rgba(244, 241, 234, .2);
}
.co-step {
  padding: 22px 20px 24px 0;
  border-right: 1px solid rgba(244, 241, 234, .14);
}
.co-step:last-child { border-right: 0; padding-right: 0; }
.co-step__num {
  display: block;
  margin-bottom: 14px;
  color: var(--accent-soft);
  font-family: "Bodoni 72", Didot, var(--serif);
  font-size: 12px;
  letter-spacing: .06em;
}
.co-step h3 {
  margin: 0 0 8px;
  color: var(--paper);
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
}
.co-step p {
  max-width: 32em;
  margin: 0;
  color: rgba(244, 241, 234, .62);
  font-size: 12.5px;
  line-height: 1.85;
}
.co-proof {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 40px;
  align-items: center;
  margin-top: 46px;
  padding: 28px 30px;
  border: 1px solid rgba(244, 241, 234, .18);
  border-radius: 4px;
  background: rgba(244, 241, 234, .03);
}
.co-proof__label {
  margin: 0 0 10px;
  color: rgba(244, 241, 234, .45);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9.5px;
  letter-spacing: .16em;
}
.co-proof h3 {
  margin: 0 0 10px;
  color: var(--paper);
  font-family: var(--serif);
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 600;
}
.co-proof p:last-child {
  max-width: 40em;
  margin: 0;
  color: rgba(244, 241, 234, .62);
  font-size: 13px;
  line-height: 1.85;
}
.co-proof__score {
  padding-left: 28px;
  border-left: 1px solid rgba(244, 241, 234, .18);
  text-align: right;
}
.co-proof__score span {
  display: block;
  color: rgba(244, 241, 234, .45);
  font-size: 10px;
  letter-spacing: .1em;
}
.co-proof__score b {
  display: block;
  font-family: "Bodoni 72", Didot, var(--serif);
  font-size: 62px;
  font-weight: 600;
  line-height: 1.05;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}
.co-proof__score small {
  display: block;
  color: rgba(244, 241, 234, .5);
  font-size: 10.5px;
  letter-spacing: .02em;
}

/* --- 得到什么 --- */
.co-gains {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line-strong);
}
.co-gain {
  padding: 26px 28px 28px 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.co-gain:nth-child(3n) { border-right: 0; padding-right: 0; }
.co-gain h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
}
.co-gain p {
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.85;
}

/* --- 适合谁 --- */
.co-fit {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line-strong);
}
.co-fit__col {
  padding: 28px 34px 30px 0;
  border-bottom: 1px solid var(--line);
}
.co-fit__col--no { padding-left: 34px; padding-right: 0; border-left: 1px solid var(--line); }
.co-fit__col h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
}
.co-fit__col h3 span { font-family: var(--sans); font-size: 15px; }
.co-fit__col--yes h3 span { color: var(--accent); }
.co-fit__col--no h3 span { color: #a05a3a; }
.co-fit__col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.co-fit__col li {
  position: relative;
  padding: 0 0 11px 16px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}
.co-fit__col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 5px;
  height: 1px;
  background: var(--line-strong);
}
.co-fit__col strong { color: var(--ink); font-weight: 600; }
.co-fit__note {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .04em;
}

/* --- 时间线 --- */
.co-timeline {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line-strong);
}
.co-timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 34px;
  padding: 0 0 34px 30px;
}
.co-timeline li:last-child { padding-bottom: 0; }
.co-timeline__dot {
  position: absolute;
  left: -4px;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--accent);
}
.co-timeline__when {
  margin: 0;
  padding-top: 2px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  letter-spacing: .1em;
}
.co-timeline h3 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
}
.co-timeline p:last-child {
  max-width: 40em;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
}

/* --- FAQ --- */
.co-faq {
  border-top: 1px solid var(--line-strong);
}
.co-faq details {
  border-bottom: 1px solid var(--line);
}
.co-faq summary {
  position: relative;
  padding: 20px 44px 20px 0;
  font-family: var(--serif);
  font-size: 19px;
  cursor: pointer;
  list-style: none;
  transition: color .18s ease;
}
.co-faq summary::-webkit-details-marker { display: none; }
.co-faq summary::after {
  content: "＋";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 15px;
  transition: transform .2s ease, color .2s ease;
}
.co-faq details[open] summary { color: var(--accent); }
.co-faq details[open] summary::after { content: "－"; color: var(--accent); }
.co-faq summary:hover { color: var(--accent); }
.co-faq p {
  max-width: 52em;
  margin: 0;
  padding: 0 40px 22px 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.95;
}

/* --- 结尾联系 --- */
.co-contact-block {
  padding: 88px 40px 92px;
  background: var(--ink);
  color: var(--paper);
}
.co-contact-block__inner {
  width: min(1240px, 100%);
  margin: 0 auto;
}
.co-contact-block .section-kicker { color: rgba(244, 241, 234, .5); }
.co-contact-block .section-kicker::before { background: var(--accent-soft); }
.co-contact-block h2 {
  margin: 14px 0 18px;
  color: var(--paper);
  font-family: var(--serif);
  font-size: clamp(36px, 4.8vw, 58px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.03em;
}
.co-contact-block__copy {
  margin: 0 0 34px;
  color: rgba(244, 241, 234, .62);
  font-size: 14px;
  line-height: 1.95;
}
.co-contact-block__action {
  display: flex;
  align-items: baseline;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 26px;
  border-top: 1px solid rgba(244, 241, 234, .16);
}
.co-contact-block__label {
  width: 100%;
  color: rgba(244, 241, 234, .45);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9.5px;
  letter-spacing: .16em;
}
.co-contact-block .co-phone { color: var(--paper) !important; }
.co-contact-block .co-phone:hover { color: #cfe0d4; }
.co-contact-block__note {
  flex: 1;
  min-width: 200px;
  text-align: right;
  color: rgba(244, 241, 234, .45);
  font-size: 11.5px;
  line-height: 1.8;
}
.co-contact-block .btn-text {
  display: inline-block;
  margin-top: 26px;
  color: rgba(244, 241, 234, .78) !important;
  border-bottom-color: rgba(244, 241, 234, .3);
}
.co-contact-block .btn-text:hover {
  color: #fff !important;
  border-bottom-color: rgba(255, 255, 255, .6);
}

/* --- 响应式 --- */
@media (max-width: 1080px) {
  .co-hero { grid-template-columns: 1fr; gap: 40px; align-items: start; }
  .co-facts { max-width: 520px; }
  .co-steps--flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .co-step:nth-child(2n) { border-right: 0; }
  .co-step:nth-child(n+3) { border-top: 1px solid rgba(244, 241, 234, .14); }
  .co-step:nth-child(5) {
    grid-column: 1 / -1;
    padding-right: 0;
  }
  .co-gains { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .co-gain:nth-child(3n) { border-right: 1px solid var(--line); padding-right: 28px; }
  .co-gain:nth-child(2n) { border-right: 0; padding-right: 0; }
}

@media (max-width: 820px) {
  .co-subnav { top: 62px; }
  .co-subnav__inner { padding: 0 18px; gap: 20px; align-items: stretch; }
  .co-subnav a { display: inline-flex; align-items: center; min-height: 44px; }
  .co-hero { padding: 54px 18px 52px; }
  .co-section { padding: 56px 18px; }
  .co-dark { padding: 56px 18px 62px; }
  .co-head { grid-template-columns: 1fr; gap: 10px; margin-bottom: 30px; }
  .co-num { padding-top: 6px; width: 44px; }
  .co-gaps { grid-template-columns: 1fr; }
  .co-insight { grid-template-columns: 1fr; gap: 8px; padding: 20px; }
  .co-steps--flow { grid-template-columns: 1fr; }
  .co-step { border-right: 0; border-bottom: 1px solid rgba(244, 241, 234, .14); padding: 20px 0; }
  .co-step:last-child { border-bottom: 0; }
  .co-proof { grid-template-columns: 1fr; gap: 22px; padding: 22px; }
  .co-proof__score { padding: 18px 0 0; border-left: 0; border-top: 1px solid rgba(244, 241, 234, .18); text-align: left; }
  .co-proof__score b { font-size: 48px; }
  .co-gains { grid-template-columns: 1fr; }
  .co-gain, .co-gain:nth-child(3n) { border-right: 0; padding: 22px 0; }
  .co-fit { grid-template-columns: 1fr; }
  .co-fit__col, .co-fit__col--no { padding: 24px 0; border-left: 0; }
  .co-fit__col--no { border-top: 1px solid var(--line); }
  .co-timeline li { grid-template-columns: 1fr; gap: 6px; padding: 0 0 26px 22px; }
  .co-faq summary { font-size: 17px; padding-right: 34px; }
  .co-contact-block { padding: 60px 18px 66px; }
  .co-contact-block__note { text-align: left; }
  .co-contact-block .co-phone { font-size: clamp(34px, 8vw, 44px); }
}

/* 首页共创区 → 完整共创页 */
.co-more {
  display: inline-block;
  margin-top: 22px;
  color: rgba(244, 241, 234, .78) !important;
  border-bottom-color: rgba(244, 241, 234, .3);
}
.co-more:hover { color: #fff !important; border-bottom-color: rgba(255, 255, 255, .6); }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 42px; padding-top: 58px; }
  .hero__aside { border-left: 0; border-top: 1px solid var(--line); padding: 28px 0 0; }
    .manifesto__grid { grid-template-columns: 1fr; gap: 34px; }
  .cta-final { grid-template-columns: 1fr; gap: 30px; }
  .cta-final__side { max-width: 360px; }
}

@media (max-width: 720px) {
  .home-nav { padding: 16px 18px; gap: 14px; }
  .home-nav__links { display: none; }
  .home-nav__actions { margin-left: auto; gap: 8px; }
  .home-user { display: none; }
  .nav-ghost { display: none; }
  /* 提权：基础规则在文件末尾，同级会被覆盖 */
  .home-nav__actions .nav-co { display: inline-flex; min-height: 44px; padding: 0 13px; }
  .nav-solid { min-height: 44px; padding: 0 14px; font-size: 12.5px; }
  .hero { padding: 42px 18px 44px; }
  .hero h1 { font-size: clamp(44px, 13vw, 62px); }
  .hero__lede { font-size: 14.5px; }
  .hero__actions .btn-primary { width: 100%; }
  .hero__actions .btn-text { align-self: flex-start; }
  .ledger-strip b { font-size: 30px; }
  .specimen__thread { padding: 14px 13px 12px; }
  .bubble { font-size: 12.5px; }
  .hero-scroll { margin-top: 34px; }
  .hero__actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .hairline { width: calc(100% - 36px); }
  .manifesto, .how { padding-left: 18px; padding-right: 18px; }
  .manifesto { padding-top: 58px; padding-bottom: 58px; }
  .how { padding-bottom: 64px; }
  .how__head { display: block; }
  .steps { grid-template-columns: 1fr; }
  .step { border-right: 0; border-bottom: 1px solid var(--line); padding: 26px 0; }
  .step:last-child { border-bottom: 0; }
  .step__num { font-size: 44px; margin-bottom: 16px; }
  .quote-block { padding: 64px 18px 60px; }
  .quote-mark { font-size: 104px; margin-bottom: -16px; }
  .cta-final { padding: 64px 18px 72px; }
  .home-footer { flex-wrap: wrap; padding: 18px 18px 24px; }
  .gallery-user .home-link { display: none; }
}


/* 移动端导航里的共创入口：桌面已有导航链接，不重复 */
.nav-co {
  display: none;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(47, 93, 74, .4);
  border-radius: 8px;
  color: var(--accent) !important;
  font-size: 12.5px;
  letter-spacing: .02em;
  text-decoration: none;
  transition: background .16s ease, border-color .16s ease;
}
.nav-co:hover { background: var(--accent-soft); border-color: var(--accent); }

/* 共创区：先把「怎么算钱、客户归谁」说清楚 */
/* 共创区是深色底，这一组必须用亮色，别套纸面配色 */
.co-terms {
  display: grid;
  gap: 0;
  margin: 22px 0 20px;
  border-top: 1px solid rgba(244, 241, 234, .2);
}
.co-terms > div {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(244, 241, 234, .14);
}
.co-terms dt {
  color: var(--accent-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9.5px;
  letter-spacing: .1em;
  line-height: 2;
}
.co-terms dd {
  margin: 0;
  color: rgba(244, 241, 234, .82);
  font-size: 12.5px;
  line-height: 1.75;
}


/* ---------------- C 端主页：进来就问 ----------------
   和 B 端招募页共用一套纸面变量，但结构只有三块：
   一句主张、一个输入框、一份能问的清单。 */

.c-page #app { position: relative; z-index: 2; }
.c-grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: .04;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.4'/%3E%3C/svg%3E");
}

.c-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  width: min(1080px, 100%);
  margin: 0 auto;
  padding: 20px 24px 18px;
  border-bottom: 1px solid var(--line);
}
.c-nav .brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.c-nav .brand strong {
  display: block;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .1em;
}
.c-nav .brand small {
  display: block;
  margin-top: 1px;
  font-size: 10px;
  letter-spacing: .04em;
  color: var(--muted);
}
.c-nav__actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
  font-size: 13px;
}
.c-nav__link { color: var(--ink); text-decoration: none; }
.c-nav__link:hover { color: var(--accent); }
.c-nav__link.is-muted { color: var(--muted); font-size: 12.5px; }

.c-main {
  width: min(1080px, 100%);
  margin: 0 auto;
  padding: 0 24px 64px;
}

.c-hero { padding: 56px 0 8px; max-width: 760px; }
.c-eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.c-title {
  margin: 0 0 20px;
  font-family: var(--serif);
  font-size: clamp(30px, 5.2vw, 48px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: .01em;
}
.c-accent { color: var(--accent); }
.c-lede {
  margin: 0 0 30px;
  max-width: 34em;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.85;
}

.c-ask {
  position: relative;
  padding: 18px 18px 14px;
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 14px;
  transition: border-color .16s ease;
}
.c-ask:focus-within { border-color: rgba(47, 93, 74, .55); }
.c-ask__label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: .1em;
}
.c-ask textarea {
  display: block;
  width: 100%;
  min-height: 62px;
  max-height: 220px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
}
.c-ask textarea::placeholder { color: #a9a396; }
.c-ask__foot {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.c-target {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 62%;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.c-target:hover { color: var(--accent); border-color: rgba(47, 93, 74, .4); }
.c-target.is-empty { cursor: default; }
.c-target__caret { font-size: 10px; opacity: .7; }
.c-send {
  margin-left: auto;
  padding: 10px 20px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #f8f5ec;
  font-size: 13.5px;
  letter-spacing: .04em;
  cursor: pointer;
  transition: background .16s ease, opacity .16s ease;
}
.c-send:hover { background: #264c3d; }
.c-send:disabled { opacity: .38; cursor: not-allowed; }

.c-picker {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 6px);
  z-index: 5;
  padding: 6px;
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(40, 44, 36, .08);
}
.c-pick {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  width: 100%;
  padding: 10px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.c-pick:hover, .c-pick.on { background: var(--accent-soft, #eaf0ea); }
.c-pick__avatar {
  flex: 0 0 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--accent-soft, #eaf0ea);
  color: var(--accent);
  font-family: var(--serif);
  font-size: 14px;
}
.c-pick__body { min-width: 0; }
.c-pick__body b { display: block; font-size: 13.5px; font-weight: 600; }
.c-pick__body small {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.c-hints {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
}
.c-hints__label { color: var(--muted); font-size: 11.5px; letter-spacing: .06em; }
.c-hints button {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  font-size: 12.5px;
  cursor: pointer;
}
.c-hints button:hover { border-color: rgba(47, 93, 74, .45); color: var(--accent); }

.c-guest-note { margin: 16px 0 0; color: var(--muted); font-size: 12px; }
.c-guest-note b { color: var(--accent); font-weight: 600; }

.c-list { margin-top: 64px; }
.c-list__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.c-list__head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
}
.c-list__head span { color: var(--muted); font-size: 12px; }
.c-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 0 32px;
}
.c-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
}
.c-card:hover .c-card__body b { color: var(--accent); }
.c-card__avatar {
  flex: 0 0 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-family: var(--serif);
  font-size: 17px;
  color: var(--accent);
}
.c-card__body { min-width: 0; }
.c-card__body b { display: block; font-family: var(--serif); font-size: 16px; font-weight: 600; }
.c-card__body small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.65;
}
.c-card__arrow { margin-left: auto; color: var(--muted); font-size: 14px; }

.c-empty {
  margin-top: 56px;
  padding: 40px 0;
  border-top: 1px solid var(--line);
}
.c-empty h2 { margin: 0 0 10px; font-family: var(--serif); font-size: 20px; font-weight: 600; }
.c-empty p { margin: 0 0 14px; color: var(--muted); font-size: 13.5px; }
.c-link { color: var(--accent); font-size: 13px; text-decoration: none; }

.c-why {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 28px;
  margin-top: 72px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.c-why b { display: block; margin-bottom: 6px; font-family: var(--serif); font-size: 14.5px; }
.c-why p { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.75; }

.c-foot {
  display: flex;
  align-items: center;
  gap: 18px;
  width: min(1080px, 100%);
  margin: 0 auto;
  padding: 20px 24px 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11.5px;
}
.c-foot nav { display: flex; gap: 16px; margin-left: auto; }
.c-foot a { color: var(--muted); text-decoration: none; }
.c-foot a:hover { color: var(--accent); }

@media (max-width: 720px) {
  .c-nav { padding: 16px 18px 14px; }
  .c-nav__actions { gap: 14px; }
  .c-nav__link.is-muted { display: none; }
  .c-main { padding: 0 18px 48px; }
  .c-hero { padding-top: 34px; }
  .c-lede { font-size: 13.5px; }
  .c-ask textarea { font-size: 16px; }
  .c-target { max-width: 52%; }
  .c-cards { grid-template-columns: 1fr; }
  .c-why { margin-top: 52px; gap: 20px; }
  .c-foot { padding: 18px 18px 30px; flex-wrap: wrap; }
}