/* ============================================================
   v4.0 · 名片现场 · mobile-first · 防横向 overflow
   ============================================================ */

:root {
  --bg:        #0a0807;
  --bg-2:      #14100c;
  --bg-3:      #1d1813;
  --text:      #f4ede0;
  --text-2:    #c8bfb1;
  --dim:       #8a827a;
  --muted:     #4a443e;
  --line:      rgba(244, 237, 224, .08);
  --line-2:    rgba(244, 237, 224, .14);
  --gold:      #d4a574;
  --gold-hi:   #f0c789;
  --gold-soft: rgba(212, 165, 116, .12);

  --serif:    "Cormorant Garamond", "Noto Serif SC", ui-serif, Georgia, serif;
  --serif-zh: "Noto Serif SC", "Cormorant Garamond", ui-serif, serif;
  --sans:     "Space Grotesk", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", sans-serif;
  --mono:     "Space Grotesk", ui-monospace, Menlo, monospace;
  --ease:     cubic-bezier(.22, 1, .36, 1);
  --pad-x:    clamp(18px, 5vw, 32px);
  --maxw:     min(560px, 100%);
}

* , *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
/* 关键：全站 overflow-x:hidden 兜底，但下面所有元素都用 max-width:100% 避免触发 */
html, body { overflow-x: hidden; }
body {
  font-family: var(--serif-zh);
  font-size: 16px; line-height: 1.7;
  color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh; min-height: 100svh;
  position: relative;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: transparent; border: 0; cursor: pointer; }
em { font-style: italic; }

/* ── 全局噪点 grain ─────────────────────────── */
body::before {
  content: ""; position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='280' height='280'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 .035 0'/></filter><rect width='280' height='280' filter='url(%23n)'/></svg>");
  opacity: .55; mix-blend-mode: overlay;
}
/* 暖金光晕 */
body::after {
  content: ""; position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 40% at 20% 10%, rgba(212, 165, 116, .14), transparent 70%),
    radial-gradient(ellipse 60% 40% at 90% 80%, rgba(139, 94, 60, .10), transparent 70%);
}
main, nav, .foot { position: relative; z-index: 1; }

/* ── Nav 极简 ───────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  padding: 12px var(--pad-x);
  display: flex; justify-content: space-between; align-items: center;
  background: linear-gradient(to bottom, rgba(10, 8, 7, .82) 0%, transparent 100%);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.nav__logo {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--text);
  font-family: var(--sans); font-size: 12.5px; letter-spacing: .08em;
}
.nav__logo em { color: var(--gold); font-style: normal; margin: 0 2px; }
.nav__mark {
  display: inline-grid; place-items: center;
  width: 26px; height: 26px; border-radius: 6px;
  background: var(--gold); color: var(--bg);
  font-family: var(--serif); font-style: italic; font-weight: 500;
  font-size: 16px;
}
.nav__cta {
  padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--sans);
  font-size: 11px; font-weight: 500; letter-spacing: .14em;
  transition: background .25s;
}
.nav__cta:hover, .nav__cta:active { background: var(--gold-soft); }
@media (max-width: 360px) {
  .nav { padding: 10px 14px; }
  .nav__text { display: none; }
}

/* v4.2: hero chips 移除，hero 右侧留给气运邮票 + 留白 */

/* ── v4.3 Workflow 步骤逐步点亮（暗色卡 + 暖金节点线）─── */
.flow li {
  opacity: 0; transform: translateY(6px);
  transition: opacity .5s var(--ease), transform .5s var(--ease), background .4s, border-color .4s;
}
.flow.is-step-1 li:nth-child(1),
.flow.is-step-2 li:nth-child(-n+2),
.flow.is-step-3 li:nth-child(-n+3),
.flow.is-step-4 li:nth-child(-n+4),
.flow.is-step-5 li:nth-child(-n+5) {
  opacity: 1; transform: none;
}
.flow.is-step-5 li.flow--end {
  background: linear-gradient(155deg, rgba(212, 165, 116, .18), rgba(212, 165, 116, .06));
  border-color: rgba(212, 165, 116, .4);
}
/* 点亮的 step 金点更亮 */
.flow.is-step-1 li:nth-child(1)::before,
.flow.is-step-2 li:nth-child(-n+2)::before,
.flow.is-step-3 li:nth-child(-n+3)::before,
.flow.is-step-4 li:nth-child(-n+4)::before,
.flow.is-step-5 li:nth-child(-n+5)::before {
  background: var(--gold);
  box-shadow: 0 0 6px rgba(212, 165, 116, .45);
}
@media (prefers-reduced-motion: reduce) {
  .flow li { opacity: 1; transform: none; transition: none; }
}
/* Workflow 末尾收束的一句话 */
.flow__final {
  text-align: center;
  margin-top: 24px;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(15px, 2.2vw, 18px);
  color: var(--text-2);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.flow.is-step-5 + .flow__final,
.flow__final.is-in {
  opacity: 1; transform: none;
}
.flow__final em { color: var(--gold); font-style: italic; font-weight: 500; }

/* ── 气运+1 小印 ────────────────────────────── */
.stamp {
  position: absolute; top: 64px; right: 18px; z-index: 5;
  display: inline-flex; align-items: baseline; gap: 2px;
  padding: 5px 10px;
  border: 1px solid rgba(212, 165, 116, .55);
  border-radius: 999px;
  background: rgba(10, 8, 7, .42);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  pointer-events: none;
}
.stamp__zh {
  font-family: var(--serif); font-style: italic; font-weight: 500;
  color: var(--gold); font-size: 14px; letter-spacing: .06em;
}
.stamp__plus {
  font-family: var(--sans);
  font-size: 9px; letter-spacing: .12em; color: var(--gold);
}

/* ============================================================
   01 · HERO（不 100vh 撑爆，根据内容自适应）
   ============================================================ */
.hero {
  position: relative;
  padding: 72px var(--pad-x) 40px;
  overflow: hidden;
  isolation: isolate;
  min-height: 100svh;
  max-height: 920px;
  display: flex; align-items: flex-end;
}
.hero__photo {
  position: absolute; inset: 0; z-index: 1;
}
.hero__photo-img {
  width: 100%; height: 100%;
  background-color: var(--bg-2);
  background-size: cover;
  background-position: center 22%;
  filter: brightness(.72) contrast(1.05);
}
.hero__photo-veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, transparent 28%, rgba(10, 8, 7, .55) 60%, rgba(10, 8, 7, .94) 88%, var(--bg) 100%),
    linear-gradient(90deg, rgba(10, 8, 7, .4) 0%, transparent 60%);
}
.hero__body {
  position: relative; z-index: 3;
  width: 100%;
  max-width: var(--maxw);
}
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sans);
  font-size: 10.5px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 14px;
}
.pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(212, 165, 116, .18);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .55; transform: scale(.92); }
}
.hero__title {
  font-family: var(--serif);
  /* v4.2 缩字号 + 加上限保护，避免移动端右侧被挤出 */
  font-size: clamp(28px, 6.6vw, 56px);
  font-weight: 500; line-height: 1.15;
  letter-spacing: -.014em;
  color: var(--text);
  margin-bottom: 22px;
  max-width: min(22ch, 92%);
  padding-right: 18px;
  word-break: keep-all;
  overflow-wrap: break-word;
  text-wrap: balance;
}
.hero__title em { font-style: italic; color: var(--gold); font-weight: 500; }
/* v4.2 hero 头像在移动端略向右、略 dim，让标题获得更舒服的呼吸 */
@media (max-width: 640px) {
  .hero__title { font-size: clamp(26px, 6.2vw, 36px); padding-right: 12px; max-width: 92%; }
  .hero__photo-img { background-position: 70% center; }
  .hero__photo-veil {
    background:
      radial-gradient(120% 60% at 20% 38%, rgba(10,8,7,.78), rgba(10,8,7,.32) 55%, transparent 80%),
      linear-gradient(180deg, rgba(10,8,7,.45) 0%, rgba(10,8,7,.05) 38%, rgba(10,8,7,.85) 100%);
  }
}
.hero__id {
  padding: 14px 0; margin-bottom: 20px;
  border-top: 1px solid rgba(244, 237, 224, .14);
  border-bottom: 1px solid rgba(244, 237, 224, .14);
}
.hero__name {
  font-family: var(--serif);
  font-size: clamp(20px, 4.8vw, 26px);
  font-weight: 500; color: var(--text);
  letter-spacing: -.012em;
  margin-bottom: 4px;
}
.hero__name span { color: var(--gold); margin: 0 4px; }
.hero__role, .hero__tags {
  font-family: var(--sans);
  font-size: 11.5px; font-weight: 300; letter-spacing: .06em;
  color: var(--text-2);
  margin-bottom: 2px;
}
.hero__role { color: var(--dim); }
.hero__proof {
  list-style: none; padding: 0; margin: 0 0 22px;
  display: flex; flex-wrap: wrap; gap: 6px 10px;
}
.hero__proof li {
  display: inline-flex; align-items: baseline; gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(212, 165, 116, .08);
  border: 1px solid rgba(212, 165, 116, .22);
  font-family: var(--sans);
}
.hero__proof strong {
  color: var(--gold); font-size: 12px; font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.hero__proof span { color: var(--text-2); font-size: 10.5px; letter-spacing: .04em; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 8px; }

/* ── Buttons ─────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 18px; min-height: 44px;
  font-family: var(--sans);
  font-size: 13px; font-weight: 500; letter-spacing: .04em;
  border-radius: 999px;
  transition: transform .25s var(--ease), background .3s, color .3s, border-color .3s;
  -webkit-tap-highlight-color: transparent;
}
.btn--gold {
  background: var(--gold); color: var(--bg);
  box-shadow: 0 12px 28px -10px rgba(212, 165, 116, .48);
}
.btn--gold:hover { background: var(--gold-hi); transform: translateY(-2px); }
.btn--ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--line-2);
}
.btn--ghost:hover { border-color: var(--gold); color: var(--gold); }

/* ============================================================
   通用 section
   ============================================================ */
.section {
  padding: clamp(60px, 9vh, 96px) var(--pad-x);
  max-width: 100%;
}
.section > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
@media (min-width: 1024px) {
  .section { padding: 96px clamp(28px, 6vw, 64px); }
  .section > * { max-width: 880px; }
}

.label {
  display: inline-block; margin-bottom: 12px;
  font-family: var(--sans);
  font-size: 10.5px; letter-spacing: .26em; text-transform: uppercase;
  color: var(--gold);
}
.sec-title {
  font-family: var(--serif);
  font-size: clamp(28px, 6.4vw, 50px);
  font-weight: 500; line-height: 1.12;
  letter-spacing: -.015em;
  color: var(--text);
}
.sec-title em { font-style: italic; color: var(--gold); font-weight: 500; }
/* v4.5：reminder 标题里的数字 "20" 单独排版，避开 Cormorant Garamond 衬线数字过装饰，改 sans 几何无衬线 + 金色 */
.sec-title__num {
  font-family: var(--sans);
  font-style: normal;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  font-size: .9em;
  letter-spacing: 0;
  color: var(--gold);
  padding: 0 .12em 0 .04em;
  vertical-align: baseline;
}
.sec-lede {
  margin-top: 12px;
  font-family: var(--sans);
  font-size: 13.5px; font-weight: 300; line-height: 1.8;
  color: var(--text-2); letter-spacing: .02em;
}

/* ============================================================
   02 · ABOUT
   ============================================================ */
.about__body { margin-top: 24px; }
.about__body p {
  font-size: 15px; line-height: 1.85; color: var(--text-2);
  margin-bottom: 14px;
}
.about__body strong { color: var(--text); font-weight: 600; }
.about__body em { color: var(--gold); font-style: italic; font-weight: 500; }

/* ============================================================
   03 · REMINDER / 04 · FIRST VERSION（表单）
   ============================================================ */
.intake-form {
  margin-top: 24px;
  display: flex; flex-direction: column; gap: 14px;
  padding: 22px 20px;
  background: linear-gradient(155deg, rgba(28, 22, 18, .85), rgba(14, 11, 9, .8));
  border: 1px solid var(--line);
  border-radius: 16px;
}
.hp { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }
.field {
  display: flex; flex-direction: column; gap: 6px;
  min-width: 0;
}
.field__label {
  font-family: var(--sans);
  font-size: 10.5px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--dim);
}
.field__label em { color: var(--gold); font-style: normal; margin-left: 4px; }
.field input,
.field textarea,
.field select {
  width: 100%; max-width: 100%;
  padding: 11px 14px;
  background: rgba(10, 8, 7, .55);
  border: 1px solid var(--line-2);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px; line-height: 1.5;
  transition: border-color .25s, background .25s;
}
.field textarea { resize: vertical; min-height: 88px; }
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: 0; border-color: var(--gold);
  background: rgba(10, 8, 7, .75);
}
.field-row {
  display: grid; gap: 14px;
  grid-template-columns: 1fr;
}
@media (min-width: 520px) {
  .field-row { grid-template-columns: 1fr 1fr; }
}
.intake-form__submit { width: 100%; }
.intake-form__note {
  font-family: var(--sans);
  font-size: 11.5px; line-height: 1.8;
  color: var(--dim); letter-spacing: .02em;
}
.intake-form__note a {
  color: var(--gold);
  border-bottom: 1px dotted rgba(212, 165, 116, .4);
}
.intake-form.is-loading .intake-form__label::after {
  content: " · 提交中…";
}
.intake-form.is-disabled button { opacity: .5; pointer-events: none; }

/* First Version 折叠表单 wrapper */
.fv-form-wrap {
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(20, 16, 12, .5);
  overflow: hidden;
}
.fv-form-wrap[open] { background: rgba(20, 16, 12, .85); }
.fv-form-wrap > summary {
  list-style: none; cursor: pointer;
  padding: 16px 20px;
  font-family: var(--sans);
  font-size: 13px; letter-spacing: .04em;
  color: var(--gold);
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
}
.fv-form-wrap > summary::-webkit-details-marker,
.fv-form-wrap > summary::marker { display: none; }
.fv-form-wrap > summary::after {
  content: "+"; font-size: 20px; color: var(--gold);
  transition: transform .3s;
}
.fv-form-wrap[open] > summary::after { transform: rotate(45deg); }
.fv-form-wrap .intake-form {
  margin-top: 0; border: 0; border-top: 1px solid var(--line);
  border-radius: 0; background: transparent; padding: 18px 20px 22px;
}

/* FV 4 卡 */
.fv-grid {
  list-style: none; padding: 0; margin: 24px 0 0;
  display: grid; gap: 10px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .fv-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
}
@media (min-width: 980px) {
  .fv-grid { grid-template-columns: repeat(4, 1fr); }
}
.fv-grid li {
  display: flex; flex-direction: column; gap: 8px;
  padding: 18px 18px 20px;
  background: linear-gradient(150deg, rgba(28, 22, 18, .75), rgba(14, 11, 9, .65));
  border: 1px solid var(--line);
  border-radius: 14px;
}
.fv-grid li .fv__kind {
  font-family: var(--serif);
  font-style: italic; font-weight: 500;
  font-size: 22px; color: var(--text);
}
.fv-grid li .fv__arrow { color: var(--gold); font-size: 14px; }
.fv-grid li .fv__out {
  font-family: var(--sans);
  font-size: 12.5px; line-height: 1.7;
  color: var(--text-2);
}

/* ============================================================
   05 · FEATURED
   ============================================================ */
.featured__grid {
  margin-top: 24px;
  display: grid; gap: 18px;
  grid-template-columns: 1fr;
}
@media (min-width: 820px) {
  .featured__grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}
.ft-card {
  display: block;
  position: relative; overflow: hidden;
  border-radius: 20px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  transition: transform .4s var(--ease), border-color .3s, box-shadow .35s;
}
.ft-card__cover {
  position: relative; aspect-ratio: 16 / 11; overflow: hidden;
}
.ft-card__cover img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  transition: transform .8s var(--ease);
}
.ft-card__cover::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, .65) 100%);
}
.ft-card__chip {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  font-family: var(--sans);
  font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--text);
  background: rgba(0, 0, 0, .55); backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 6px 10px; border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .15);
}
.ft-card__body {
  position: relative; z-index: 2;
  padding: 18px 20px 22px;
}
.ft-card__title {
  font-family: var(--serif);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 500; line-height: 1.25;
  letter-spacing: -.012em;
  color: var(--text); margin-bottom: 6px;
}
.ft-card__note {
  font-family: var(--sans);
  font-size: 13px; font-weight: 300; line-height: 1.7;
  color: var(--text-2); margin-bottom: 12px;
}
.ft-card__cta {
  font-family: var(--sans);
  font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--gold);
}
.ft-card__cta::after { content: " →"; transition: transform .2s; display: inline-block; }
@media (hover: hover) {
  .ft-card:hover { transform: translateY(-3px); border-color: var(--gold); }
  .ft-card:hover .ft-card__cover img { transform: scale(1.04); }
  .ft-card:hover .ft-card__cta::after { transform: translateX(4px); }
}

/* ============================================================
   06 · WORKS LIST + VISUALS GRID
   ============================================================ */
.works-list {
  list-style: none; padding: 0; margin: 24px 0 0;
  display: grid; gap: 12px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .works-list { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}
@media (min-width: 1024px) {
  .works-list { grid-template-columns: repeat(3, 1fr); }
}
.wk-item {
  display: flex; flex-direction: column;
  position: relative; overflow: hidden;
  border-radius: 14px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.wk-item__index {
  position: absolute; top: 12px; left: 14px; z-index: 2;
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .14em; color: var(--gold);
}
.wk-item__cover {
  aspect-ratio: 16 / 11;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  position: relative; overflow: hidden;
}
.wk-item__cover img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease);
}
.wk-item__placeholder {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(212, 165, 116, .08), rgba(28, 22, 18, .85));
  font-family: var(--serif);
  font-size: clamp(16px, 2.4vw, 22px);
  color: var(--gold); font-style: italic;
  text-align: center; padding: 0 16px;
  letter-spacing: .04em;
}
.wk-item__body {
  padding: 14px 16px 16px;
  display: flex; flex-direction: column; gap: 6px;
}
.wk-item__title {
  font-family: var(--serif);
  font-size: 15px; font-weight: 500;
  color: var(--text); line-height: 1.4;
}
.wk-item__tags { display: flex; flex-wrap: wrap; gap: 4px; }
.wk-item__tag {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: .04em;
  color: var(--dim);
  padding: 2px 7px; border: 1px solid var(--line); border-radius: 4px;
}
.wk-item__status {
  margin-top: 4px;
  font-family: var(--sans);
  font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase;
}
.wk-item--online .wk-item__status { color: var(--gold); }
.wk-item--pending .wk-item__status { color: var(--dim); }
.wk-item--anchor  .wk-item__status { color: var(--text-2); }
@media (hover: hover) {
  .wk-item:hover { transform: translateY(-2px); border-color: var(--gold); }
  .wk-item:hover .wk-item__cover img { transform: scale(1.04); }
}
.wk-item--pending { opacity: .85; }

/* Visuals 12 张 grid */
.visuals-block { margin-top: 28px; } /* v4.4: 紧凑化 40 → 28 */
.visuals-block__head { margin-bottom: 10px; }
.visuals-block__title {
  font-family: var(--serif);
  font-size: clamp(18px, 3vw, 24px);
  font-weight: 500; color: var(--text);
  letter-spacing: -.005em; margin-top: 4px;
}
.visuals-block__title em { color: var(--gold); font-style: italic; }
.visuals-grid {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: 6px; /* v4.4: 8 → 6 更紧凑，12 张正好 3 列 × 4 行满整行 */
  grid-template-columns: repeat(3, 1fr);
}
@media (min-width: 640px) {
  .visuals-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 1024px) {
  .visuals-grid { grid-template-columns: repeat(6, 1fr); }
}
/* v4.3: 移动端也显示全部 12 张 */
.visuals-grid li {
  position: relative; overflow: hidden;
  border-radius: 8px;
  background: var(--bg-2);
  aspect-ratio: 3 / 4;
}
/* v4.3：同图模糊背景补边 + img 用 contain 完整展示横/竖/方图，不裁脸不裁手 */
.visuals-item__bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  filter: blur(28px) brightness(.6) saturate(.9);
  transform: scale(1.15); /* 避免模糊边缘留白 */
  z-index: 0;
}
.visuals-grid li::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,8,7,.15) 0%, rgba(10,8,7,.05) 50%, rgba(10,8,7,.35) 100%);
  z-index: 1;
}
.visuals-grid img {
  position: relative; z-index: 2;
  width: 100%; height: 100%;
  object-fit: contain; object-position: center;
  transition: transform .5s var(--ease), filter .3s;
}
@media (hover: hover) {
  .visuals-grid li:hover img { transform: scale(1.03); filter: brightness(1.08); }
}

/* ============================================================
   07 · ABILITY 3 卡
   ============================================================ */
.ability-list {
  list-style: none; padding: 0; margin: 24px 0 0;
  display: grid; gap: 12px;
  grid-template-columns: 1fr;
}
@media (min-width: 880px) {
  .ability-list { grid-template-columns: 1fr 1fr 1fr; }
}
.ab-card {
  padding: 22px 22px 20px;
  background: linear-gradient(150deg, rgba(28, 22, 18, .85), rgba(14, 11, 9, .8));
  border: 1px solid var(--line);
  border-radius: 16px;
  position: relative; overflow: hidden;
}
.ab-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--gold); opacity: .4;
}
.ab-card__tag {
  display: inline-block;
  font-family: var(--sans);
  font-size: 10.5px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}
.ab-card__summary {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 500; color: var(--text);
  line-height: 1.4;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.ab-card__items {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-wrap: wrap; gap: 6px;
}
.ab-card__items li {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: .03em;
  color: var(--text-2);
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
}
/* ── Ability 展开/收起 ── */
.ab-card { cursor: pointer; user-select: none; transition: border-color .3s; }
.ab-card:hover, .ab-card.is-open { border-color: rgba(212, 165, 116, .35); }
.ab-card__detail {
  display: grid; grid-template-rows: 0fr;
  transition: grid-template-rows .35s ease, opacity .3s ease;
  opacity: 0;
}
.ab-card__detail-inner { overflow: hidden; }
.ab-card.is-open .ab-card__detail { grid-template-rows: 1fr; opacity: 1; }
.ab-card__toggle {
  display: flex; align-items: center; gap: 5px;
  margin-top: 10px; padding: 0; border: none; background: none;
  font-family: var(--sans); font-size: 11px; letter-spacing: .08em;
  color: var(--gold); cursor: pointer; opacity: .6; transition: opacity .2s;
}
.ab-card__toggle:hover { opacity: 1; }
.ab-card.is-open .ab-card__toggle { margin-top: 6px; }

/* ── Tools 合并到 Ability section ── */
.tools-wrap {
  margin-top: 40px; padding-top: 28px;
  border-top: 1px solid var(--line);
}
.tools-wrap__title {
  font-family: var(--serif); font-style: italic;
  font-size: clamp(17px, 2.2vw, 21px); font-weight: 500;
  color: var(--text); margin-bottom: 4px;
}
.tools-wrap__title em { color: var(--gold); }

/* ============================================================
   08 · TOOL STACK 3 组（已合并到 Ability section，样式保留）
   ============================================================ */
.tools-grid {
  margin-top: 24px;
  display: grid; gap: 14px;
  grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .tools-grid { grid-template-columns: 1fr 1fr 1fr; gap: 18px; }
}
.tool {
  padding: 22px;
  background: linear-gradient(155deg, rgba(28, 22, 18, .7), rgba(14, 11, 9, .65));
  border: 1px solid var(--line);
  border-radius: 14px;
  display: flex; flex-direction: column; gap: 12px;
  position: relative; overflow: hidden;
}
.tool::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--gold); opacity: .4;
}
.tool__group {
  font-family: var(--sans);
  font-size: 10.5px; letter-spacing: .24em; text-transform: uppercase;
  color: var(--gold);
}
.tool__items {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-wrap: wrap; gap: 6px;
}
.tool__items li {
  font-family: var(--mono);
  font-size: 11.5px; letter-spacing: .03em;
  color: var(--text);
  padding: 5px 10px;
  background: rgba(212, 165, 116, .1);
  border: 1px solid rgba(212, 165, 116, .25);
  border-radius: 999px;
}
.tool__use {
  font-family: var(--sans);
  font-size: 12px; line-height: 1.7;
  color: var(--text-2); letter-spacing: .02em;
  padding-top: 8px; border-top: 1px solid var(--line);
}

/* ============================================================
   09b · 第二大脑与日报系统（v4.3 新增）
   ============================================================ */
.section.brain { position: relative; }
.section.brain .sec-title em { color: var(--gold); }

/* 4 步流向 */
.brain-flow {
  list-style: none; padding: 0; margin: 28px 0 0;
  display: grid; gap: 10px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .brain-flow { grid-template-columns: repeat(4, 1fr); gap: 12px; }
}
.brain-flow li {
  padding: 14px 16px;
  background: linear-gradient(155deg, rgba(28, 22, 18, .6), rgba(14, 11, 9, .5));
  border: 1px solid var(--line);
  border-radius: 10px;
  display: flex; flex-direction: column; gap: 6px;
}
.brain-flow__n {
  font-family: var(--sans);
  font-size: 10.5px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--gold);
}
.brain-flow__d {
  font-family: var(--sans);
  font-size: 12.5px; line-height: 1.65; letter-spacing: .02em;
  color: var(--text-2);
  margin: 0;
}

/* v4.4：原独立 .brain-hero 大卡已删除，合并到 .brain-card--withTags（Obsidian 卡）*/
/* 占位卡：当图未提供时显示 */
.brain-hero__placeholder {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; gap: 8px;
  align-items: center; justify-content: center;
  text-align: center; padding: 24px;
  background: radial-gradient(ellipse at center, rgba(212,165,116,.06), transparent 60%);
}
.brain-hero__placeholder::before {
  content: ""; position: absolute; inset: 12px;
  border: 1px dashed rgba(212,165,116,.18);
  border-radius: 10px;
}
.brain-hero__placeholder-tag {
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--gold); opacity: .7;
}
.brain-hero__placeholder-title {
  font-family: var(--serif);
  font-style: italic; font-weight: 500;
  font-size: clamp(18px, 2.4vw, 22px);
  color: var(--text);
}
.brain-hero__placeholder-hint {
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .04em;
  color: var(--muted);
  word-break: break-all;
  max-width: 90%;
}

/* 3 张证据卡 */
.brain-cards {
  list-style: none; padding: 0; margin: 24px 0 0;
  display: grid; gap: 12px;
  grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .brain-cards { grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
}
.brain-card {
  background: linear-gradient(155deg, rgba(28, 22, 18, .7), rgba(14, 11, 9, .6));
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  display: flex; flex-direction: column;
}
.brain-card__cover {
  position: relative; overflow: hidden;
  aspect-ratio: 16 / 11;
  background: rgba(0, 0, 0, .4);
}
/* v4.4：Obsidian 卡（含 4 浮动标签）尺寸更大，因为承担了原 hero 主视觉角色 */
.brain-card--withTags .brain-card__cover {
  aspect-ratio: 4 / 3;
}
@media (min-width: 760px) {
  .brain-card--withTags .brain-card__cover { aspect-ratio: 16 / 10; }
}
.brain-card--withTags .brain-card__img {
  background-color: #0a0807;
  filter: brightness(.92) contrast(1.05) saturate(1.05);
}
/* 飞书复盘卡 tall 模式：长截图加高 + 展示下半部分（pos: center bottom）*/
.brain-card--tall .brain-card__cover {
  aspect-ratio: 3 / 4;
}
@media (min-width: 760px) {
  .brain-card--tall .brain-card__cover { aspect-ratio: 4 / 5; }
}

/* Obsidian 卡专属：金紫光晕 + 4 浮动标签 */
.brain-card__glow {
  position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(circle at 28% 38%, rgba(212,165,116,.18) 0%, transparent 40%),
    radial-gradient(circle at 72% 62%, rgba(168,134,234,.15) 0%, transparent 40%);
  mix-blend-mode: screen;
  pointer-events: none;
}
.brain-card__tags {
  position: absolute; inset: 0; z-index: 3;
  list-style: none; padding: 0; margin: 0;
  pointer-events: none;
}
.brain-card__tag {
  position: absolute;
  font-family: var(--sans);
  font-size: 9.5px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--text);
  padding: 4px 9px; border-radius: 999px;
  background: rgba(10, 8, 7, .6);
  border: 1px solid rgba(212, 165, 116, .35);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  box-shadow: 0 5px 18px -8px rgba(0,0,0,.55);
}
.brain-card__tag::before {
  content: ""; display: inline-block; vertical-align: middle;
  width: 4px; height: 4px; margin-right: 5px;
  border-radius: 50%; background: var(--gold);
  box-shadow: 0 0 5px rgba(212,165,116,.6);
}
.brain-card__tag--input   { top: 9%;  left: 6%; }
.brain-card__tag--process { top: 11%; right: 6%; }
.brain-card__tag--review  { bottom: 18%; left: 6%; }
.brain-card__tag--output  { bottom: 15%; right: 6%; }
.brain-card__tag--output::before { background: rgba(168,134,234,.9); box-shadow: 0 0 5px rgba(168,134,234,.6); }
.brain-card__tag--review::before { background: rgba(168,134,234,.9); box-shadow: 0 0 5px rgba(168,134,234,.6); }
@media (max-width: 480px) {
  .brain-card__tag { font-size: 8.5px; padding: 3px 7px; letter-spacing: .14em; }
}
.brain-card__img {
  position: absolute; inset: 0;
  background-repeat: no-repeat;
  /* background-size/position 由 JS inline 注入（fit/pos 可自定义）*/
  filter: brightness(.82) contrast(1.04);
  transition: transform .5s var(--ease), filter .3s;
}
.brain-card__veil {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at center top, transparent 40%, rgba(10,8,7,.5) 100%),
    linear-gradient(180deg, rgba(10,8,7,.15) 0%, transparent 40%, transparent 60%, rgba(10,8,7,.7) 100%);
  pointer-events: none;
}
.brain-card__chip {
  position: absolute; left: 10px; bottom: 10px; z-index: 2;
  font-family: var(--sans); font-size: 10px; letter-spacing: .14em;
  color: var(--text); text-transform: uppercase;
  padding: 5px 10px; border-radius: 999px;
  background: rgba(10, 8, 7, .65);
  border: 1px solid rgba(212, 165, 116, .3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.brain-card__chip::before {
  content: ""; display: inline-block; vertical-align: middle;
  width: 4px; height: 4px; margin-right: 6px;
  border-radius: 50%; background: var(--gold);
  box-shadow: 0 0 4px rgba(212,165,116,.6);
}
@media (hover: hover) {
  .brain-card:hover .brain-card__img { transform: scale(1.03); filter: brightness(.9) contrast(1.04); }
}
.brain-card__placeholder {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; gap: 6px;
  align-items: center; justify-content: center;
  text-align: center; padding: 18px;
}
.brain-card__placeholder::before {
  content: ""; position: absolute; inset: 10px;
  border: 1px dashed rgba(212,165,116,.18);
  border-radius: 8px;
}
.brain-card__placeholder-tag {
  font-family: var(--serif); font-style: italic; font-weight: 500;
  font-size: 15px; color: var(--text);
  position: relative; z-index: 1;
}
.brain-card__placeholder-path {
  font-family: var(--mono);
  font-size: 9.5px; letter-spacing: .04em;
  color: var(--muted);
  position: relative; z-index: 1;
}
.brain-card__body {
  padding: 14px 16px 16px;
  display: flex; flex-direction: column; gap: 6px;
}
.brain-card__title {
  font-family: var(--serif); font-style: italic; font-weight: 500;
  font-size: 15px; color: var(--text);
  margin: 0;
}
.brain-card__desc {
  font-family: var(--sans);
  font-size: 12.5px; line-height: 1.65; letter-spacing: .02em;
  color: var(--text-2);
  margin: 0;
}

/* 收束句 */
.brain__final {
  text-align: center;
  margin-top: 28px;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(14px, 2vw, 17px);
  color: var(--text-2);
  line-height: 1.6;
}
.brain__final em { color: var(--gold); font-style: italic; font-weight: 500; }

/* ============================================================
   09 · WORKFLOW 5 步（v4.3：竖向暗色卡 + 暖金连接线 + 节点）
   ============================================================ */
.flow {
  margin-top: 28px;
  list-style: none;
  padding: 0 0 0 28px;
  display: flex; flex-direction: column;
  gap: 10px;
  position: relative;
}
/* 左侧暖金连接线 */
.flow::after {
  content: ""; position: absolute;
  left: 7px; top: 26px; bottom: 26px; width: 1px;
  background: linear-gradient(180deg, transparent 0%, rgba(212,165,116,.3) 8%, rgba(212,165,116,.3) 92%, transparent 100%);
  pointer-events: none;
}
@media (min-width: 640px) {
  .flow {
    flex-direction: row; gap: 8px; padding-left: 0;
  }
  .flow::after { display: none; }
  .flow li { flex: 1; }
  .flow li::before { display: none; }
}
.flow li {
  padding: 14px 16px;
  border-radius: 12px;
  background: linear-gradient(155deg, rgba(28, 22, 18, .7), rgba(14, 11, 9, .6));
  border: 1px solid var(--line);
  position: relative;
  display: flex; gap: 14px; align-items: flex-start;
}
/* 左侧暖金节点圆点 */
.flow li::before {
  content: ""; position: absolute;
  left: -24px; top: 20px;
  width: 6px; height: 6px; border-radius: 50%;
  background: rgba(212,165,116,.35);
  box-shadow: 0 0 0 2px rgba(212,165,116,.1);
  transition: background .4s, box-shadow .4s;
  flex-shrink: 0;
}
.flow li.flow--end { border-color: rgba(212, 165, 116, .35); }
.flow__n {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: .2em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  padding-top: 2px;
}
.flow__text { display: flex; flex-direction: column; gap: 4px; }
.flow__label {
  font-family: var(--serif);
  font-style: italic; font-weight: 500;
  font-size: 15px; color: var(--text);
  line-height: 1.3;
}
.flow__desc {
  font-family: var(--sans);
  font-size: 12.5px; line-height: 1.65; letter-spacing: .02em;
  color: var(--text-2);
  margin: 0;
}

/* ============================================================
   10 · CONTACT 名片
   ============================================================ */
.contact__title { max-width: 22em; }
.namecard {
  margin-top: 28px;
  display: grid; gap: 24px;
  grid-template-columns: 1fr;
  padding: clamp(22px, 4vw, 32px);
  background: linear-gradient(155deg, rgba(28, 22, 18, .85), rgba(14, 11, 9, .8));
  border: 1px solid var(--line-2);
  border-radius: 22px;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  box-shadow:
    inset 0 1px 0 rgba(244, 237, 224, .04),
    0 30px 80px -30px rgba(0, 0, 0, .8);
  position: relative; overflow: hidden;
}
.namecard::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: .55;
}
.namecard::after {
  content: ""; position: absolute; bottom: -120px; right: -120px;
  width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 165, 116, .22), transparent 70%);
  pointer-events: none;
}
@media (min-width: 760px) {
  .namecard {
    grid-template-columns: 220px 1fr;
    grid-template-areas: "qr body" "list list" "foot foot";
    gap: 30px;
  }
  .namecard__qr   { grid-area: qr; }
  .namecard__body { grid-area: body; }
  .namecard__list { grid-area: list; }
  .namecard__footnote { grid-area: foot; }
}
.namecard__qr {
  width: clamp(170px, 50vw, 220px);
  aspect-ratio: 1; margin: 0 auto;
  padding: 12px;
  background: #ffffff;
  border-radius: 14px;
  box-shadow: 0 12px 32px -10px rgba(0, 0, 0, .55);
  position: relative; z-index: 2;
}
.namecard__qr img { width: 100%; height: 100%; object-fit: contain; }
.namecard__body {
  display: flex; flex-direction: column; gap: 10px;
  position: relative; z-index: 2; min-width: 0;
}
.namecard__name {
  font-family: var(--serif);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 500; color: var(--text); letter-spacing: -.012em;
}
.namecard__name span { color: var(--gold); margin: 0 4px; }
.namecard__role {
  font-family: var(--sans);
  font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--dim);
}
.namecard__hint, .namecard__note {
  font-family: var(--sans);
  font-size: 12px; line-height: 1.7;
  color: var(--text-2);
}
.namecard__note em {
  font-family: var(--serif); font-style: italic;
  color: var(--gold); font-weight: 500; margin: 0 2px;
}
.namecard__list {
  list-style: none; padding: 14px 0 0; margin: 0;
  border-top: 1px solid var(--line);
  display: flex; flex-direction: column;
  position: relative; z-index: 2;
}
.namecard__list li {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--sans); font-size: 14px;
  min-height: 44px;
}
.namecard__list li:last-child { border-bottom: 0; }
.nm-label {
  font-size: 10.5px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--dim);
  flex-basis: 64px;
}
.nm-val {
  font-family: var(--mono);
  font-size: 14px; color: var(--text);
  letter-spacing: .02em;
  flex: 1; min-width: 0;
  user-select: all;
  word-break: break-all;
}
a.nm-val {
  border-bottom: 1px dotted rgba(244, 237, 224, .22);
  transition: color .25s, border-color .25s;
}
a.nm-val:hover { color: var(--gold); border-color: var(--gold); }

.copy-btn {
  padding: 6px 12px;
  border-radius: 999px;
  background: transparent; color: var(--gold);
  font-family: var(--sans);
  font-size: 10.5px; font-weight: 500; letter-spacing: .12em;
  text-transform: uppercase;
  border: 1px solid rgba(212, 165, 116, .35);
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
  transition: background .25s, border-color .25s, color .25s;
}
.copy-btn:hover { background: rgba(212, 165, 116, .1); border-color: var(--gold); }
.copy-btn[data-state="done"] {
  background: var(--gold); color: var(--bg); border-color: var(--gold);
}
.namecard__footnote {
  position: relative; z-index: 2;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(13px, 1.6vw, 15px);
  color: var(--text-2); line-height: 1.7;
  text-align: center;
  padding-top: 4px;
}
.namecard__footnote em { color: var(--gold); font-weight: 500; }

/* ============================================================
   Footer / Sticky / Toast / Form result
   ============================================================ */
.foot {
  padding: 28px var(--pad-x);
  border-top: 1px solid var(--line);
}
.foot__row {
  max-width: 880px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
}
.foot__logo {
  font-family: var(--serif);
  font-size: 14px; font-weight: 500; color: var(--text); letter-spacing: .04em;
}
.foot__logo em { color: var(--gold); font-style: normal; margin: 0 4px; }
.foot__meta {
  font-family: var(--sans);
  font-size: 10px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted);
}

/* mobile-cta 已移除（v4.3）：只保留顶部 nav + Contact 区 */

.toast {
  position: fixed; left: 50%; bottom: 28px;
  transform: translate(-50%, 24px);
  z-index: 999;
  display: flex; align-items: center; gap: 10px;
  padding: 10px 18px; border-radius: 999px;
  background: var(--text); color: var(--bg);
  font-family: var(--sans);
  font-size: 12.5px; letter-spacing: .04em;
  opacity: 0; pointer-events: none;
  transition: opacity .3s, transform .35s var(--ease);
  box-shadow: 0 18px 40px -16px rgba(0, 0, 0, .6);
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }
.toast__icon {
  width: 16px; height: 16px;
  display: grid; place-items: center;
  border-radius: 50%; background: var(--gold); color: var(--bg);
  font-size: 10px; font-weight: 700;
}

.form-result {
  display: none; position: fixed; inset: 0; z-index: 500;
  background: rgba(8, 6, 5, .9);
  align-items: center; justify-content: center;
  padding: 20px;
}
.form-result.is-on { display: flex; }
.form-result__card {
  max-width: 420px; width: 100%;
  padding: 32px 28px;
  background: linear-gradient(155deg, rgba(28, 22, 18, .95), rgba(14, 11, 9, .92));
  border: 1px solid var(--line-2);
  border-radius: 18px;
  text-align: center;
}
.form-result__icon {
  display: inline-grid; place-items: center;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--gold); color: var(--bg);
  font-size: 22px; margin-bottom: 14px;
}
.form-result__title {
  font-family: var(--serif);
  font-size: 22px; font-weight: 500; color: var(--text);
  margin-bottom: 10px;
}
.form-result__body {
  font-family: var(--sans);
  font-size: 13.5px; line-height: 1.7; color: var(--text-2);
  margin-bottom: 12px;
}
.form-result__body em {
  font-family: var(--mono); font-style: normal;
  color: var(--gold); border-bottom: 1px dotted rgba(212, 165, 116, .4);
}
.form-result__alt {
  font-family: var(--sans);
  font-size: 12px; color: var(--dim);
  margin-bottom: 18px;
}
.form-result__alt a { color: var(--gold); }

/* ── Reveal（v4.2 推进感：translateY+scale+blur 三件）─── */
[data-reveal] {
  opacity: 0;
  transform: translate3d(0, 24px, 0) scale(.985);
  filter: blur(2px);
  transition: opacity .85s var(--ease), transform .85s var(--ease), filter .6s var(--ease);
}
[data-reveal].is-in {
  opacity: 1; transform: none; filter: none;
}
/* 卡片错时入场 */
[data-reveal-stagger] { transition-delay: calc(var(--stagger, 0) * 90ms); }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; filter: none; transition: none; }
  .pulse { animation: none; }
}

/* ============================================================
   v4.2 · Section 导览线 (scroll-progress)
   极细暖金 + 7 节点，默认很淡，当前 section 微亮，输入框/Contact 自动淡出
   ============================================================ */
/* v4.4：导览线移到右侧（避开左手单手操作区域）+ 节点 label 翻转到左侧 */
.scroll-progress {
  position: fixed; right: 8px; top: 50%;
  transform: translateY(-50%);
  z-index: 80;
  display: flex; flex-direction: row-reverse; align-items: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity .4s var(--ease);
}
.scroll-progress.is-on { opacity: 1; }
.scroll-progress.is-hide { opacity: 0; }
.scroll-progress__line {
  position: relative;
  width: 1px; height: 220px;
  background: rgba(244, 237, 224, .05);
  margin-left: 10px;
  border-radius: 1px;
  overflow: hidden;
}
.scroll-progress__fill {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 0;
  background: linear-gradient(180deg, rgba(212,165,116,.0) 0%, rgba(212,165,116,.6) 60%, rgba(240,199,137,.78) 100%);
  transition: height .5s var(--ease);
}
.scroll-progress__nodes {
  position: absolute; left: 0; top: 0;
  display: flex; flex-direction: column;
  justify-content: space-between;
  height: 220px;
  list-style: none; padding: 0; margin: 0;
}
.scroll-progress__nodes li {
  position: relative;
  width: 5px; height: 5px;
  margin-left: -2px;
  border-radius: 50%;
  background: rgba(244, 237, 224, .12);
  border: 1px solid rgba(244, 237, 224, .08);
  transition: background .35s var(--ease), transform .35s var(--ease), box-shadow .35s var(--ease);
}
.scroll-progress__nodes li::after {
  /* v4.4：导览线移到右侧后，label 翻转到节点左侧（指向 section）*/
  content: attr(data-sp-label);
  position: absolute; right: 12px; top: 50%;
  transform: translateY(-50%);
  font-family: var(--sans);
  font-size: 9px; letter-spacing: .14em;
  color: var(--gold);
  white-space: nowrap;
  opacity: 0;
  transition: opacity .5s var(--ease);
  text-shadow: 0 0 10px rgba(10,8,7,.95);
  pointer-events: none;
}
.scroll-progress__nodes li.is-active {
  background: var(--gold);
  transform: scale(1.5);
  box-shadow: 0 0 10px rgba(212, 165, 116, .55);
}
.scroll-progress__nodes li.is-active::after { opacity: .85; }
/* 进入 active 1s 后 label 淡出，节点本身仍亮 */
.scroll-progress__nodes li.is-active.is-label-fade::after { opacity: 0; }
@media (max-width: 360px) {
  .scroll-progress { right: 4px; left: auto; }
  .scroll-progress__line, .scroll-progress__nodes { height: 180px; }
}
@media (prefers-reduced-motion: reduce) {
  .scroll-progress__fill { transition: none; }
  .scroll-progress__nodes li { transition: background .01s; transform: none !important; }
  .scroll-progress__nodes li.is-active { transform: none !important; box-shadow: none; }
  .scroll-progress__nodes li::after { transition: none; }
}

/* mobile-cta hide rules 已随 CTA 一并移除（v4.3）*/

/* ============================================================
   v4.2 · Featured 主展品 staging（移动端单列时第一卡放大、第二卡略 dim）
   ============================================================ */
@media (max-width: 819px) {
  .featured__grid { gap: 28px; }
  .featured__grid .ft-card:nth-child(1) {
    transform: scale(1);
    box-shadow: 0 28px 48px -30px rgba(0,0,0,.75), 0 0 0 1px rgba(212,165,116,.16);
  }
  .featured__grid .ft-card:nth-child(2) {
    transform: scale(.96);
    opacity: .82;
    margin-top: -8px;
  }
  .featured__grid .ft-card:nth-child(2)[data-reveal].is-in {
    transform: scale(.96);
  }
  .featured__grid .ft-card:nth-child(2):hover,
  .featured__grid .ft-card:nth-child(2):focus-within {
    transform: scale(1); opacity: 1;
  }
}

/* ============================================================
   v4.2 · Works focus + 背景金光跟随（移动端单列）
   ============================================================ */
.works-list .wk-item { transition: transform .35s var(--ease), opacity .35s var(--ease), border-color .3s, box-shadow .35s var(--ease); }
.works-list .wk-item.is-focus {
  transform: scale(1.02);
  border-color: rgba(212, 165, 116, .42);
  box-shadow: 0 32px 60px -28px rgba(0,0,0,.85), 0 0 0 1px rgba(212,165,116,.22);
}
.works-list .wk-item.is-dim {
  opacity: .55;
  transform: scale(.985);
}
/* works section 背景金光跟随 */
.section.works { position: relative; }
.section.works::before {
  content: "";
  position: absolute; left: 50%; top: var(--works-spot-y, 50%);
  transform: translate(-50%, -50%);
  width: 460px; height: 460px;
  background: radial-gradient(closest-side, rgba(212,165,116,.16), transparent 75%);
  pointer-events: none;
  z-index: 0;
  transition: top .5s var(--ease), opacity .4s var(--ease);
  opacity: 0;
}
.section.works.is-spot-on::before { opacity: 1; }
.section.works > * { position: relative; z-index: 1; }

/* section reveal 进入时光晕略微增强 */
.section[data-section-active] {
  position: relative;
}
.section[data-section-active]::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(60% 40% at 50% 0%, rgba(212,165,116,.05), transparent 70%);
  opacity: 0; pointer-events: none; z-index: 0;
  transition: opacity .8s var(--ease);
}
.section[data-section-active].is-active::after { opacity: 1; }

/* v4.2 · 全站细暖金 hairline 装饰 */
.section {
  position: relative;
}
.section::before {
  content: ""; position: absolute; top: 0; left: var(--pad-x); right: var(--pad-x);
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(212,165,116,.18) 50%, transparent 100%);
}
.section.contact::before { background: linear-gradient(90deg, transparent 0%, rgba(212,165,116,.32) 50%, transparent 100%); }

::selection { background: var(--gold); color: var(--bg); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }