/* =========================================================================
   ipanda.online — 视觉系统
   基调：深墨 + 象牙白 + 一点黄铜。衬线标题，无衬线正文，等宽标记。
   原则：留白、细线、克制的动效。所有装饰都不下载字体、不依赖第三方。
   ========================================================================= */

/* ---------------------------------------------------------------- tokens */
:root {
  --bg: #07090b;
  --bg-soft: #0a0e11;
  --bg-elev: #0d1215;
  --fg: #ece7dd;
  --fg-2: rgba(236, 231, 221, 0.74);
  --fg-3: rgba(236, 231, 221, 0.48);
  --line: rgba(236, 231, 221, 0.13);
  --line-strong: rgba(236, 231, 221, 0.26);
  --accent: #c9a86c;
  --accent-soft: rgba(201, 168, 108, 0.14);
  --accent-2: #9dbdb4;
  --shadow: 0 40px 100px -50px rgba(0, 0, 0, 0.95);
  --grain-opacity: 0.038;
  --img-dim: 0.94;

  --serif: "Didot", "Bodoni 72", "Playfair Display", "Songti SC", "Noto Serif SC",
    "Source Han Serif SC", "STSong", Georgia, serif;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;

  --fs-display: clamp(3.9rem, 11vw, 8.6rem);
  --fs-h1: clamp(2.5rem, 5.6vw, 4.8rem);
  --fs-h2: clamp(1.95rem, 3.4vw, 3rem);
  --fs-h3: clamp(1.1rem, 1.5vw, 1.4rem);
  --fs-body: clamp(1rem, 0.55vw + 0.86rem, 1.0625rem);
  --fs-small: 0.875rem;
  --fs-label: 0.7rem;

  --shell: 1320px;
  --pad: clamp(1.25rem, 5vw, 4.5rem);
  --gap: clamp(1rem, 2vw, 1.75rem);
  --section-y: clamp(3.75rem, 7.5vw, 6.5rem);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
}

:root[data-theme="paper"] {
  --bg: #f4f0e8;
  --bg-soft: #ece7dc;
  --bg-elev: #fbf8f2;
  --fg: #15181a;
  --fg-2: rgba(21, 24, 26, 0.74);
  --fg-3: rgba(21, 24, 26, 0.52);
  --line: rgba(21, 24, 26, 0.15);
  --line-strong: rgba(21, 24, 26, 0.3);
  --accent: #86652b;
  --accent-soft: rgba(134, 101, 43, 0.12);
  --accent-2: #3d665c;
  --shadow: 0 40px 90px -55px rgba(60, 45, 20, 0.5);
  --grain-opacity: 0.026;
  --img-dim: 1;
}

/* ---------------------------------------------------------------- reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: var(--fs-body);
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color 0.4s var(--ease-soft), color 0.4s var(--ease-soft);
}

img {
  max-width: 100%;
  display: block;
  height: auto;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

ul,
ol {
  padding: 0;
  list-style: none;
}

svg {
  width: 1em;
  height: 1em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

::selection {
  background: var(--accent);
  color: #0a0a0a;
}

:focus-visible {
  outline: 1.5px solid var(--accent);
  outline-offset: 4px;
  border-radius: 2px;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 200;
  padding: 0.7rem 1.1rem;
  background: var(--fg);
  color: var(--bg);
  font-size: var(--fs-small);
  transition: top 0.2s;
}

.skip-link:focus {
  top: 1rem;
}

/* ---------------------------------------------------------------- grain + glow */
.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 460px;
  height: 460px;
  margin: -230px 0 0 -230px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 62%);
  transition: opacity 0.6s var(--ease-soft);
  will-change: transform;
}

@media (pointer: fine) {
  .cursor-glow.is-on {
    opacity: 1;
  }
}

/* ---------------------------------------------------------------- 排版 */
.eyebrow,
.section-index,
.section-latin,
.page-latin,
.nav-latin,
.brand-latin,
.footer-latin,
.series-latin,
.row-latin,
.article-kicker,
.next-label,
.contact-latin {
  font-family: var(--mono);
  font-size: var(--fs-label);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--fg-3);
}

.serif {
  font-family: var(--serif);
}

/* ---------------------------------------------------------------- 布局 */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section {
  padding-block: var(--section-y);
  position: relative;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: var(--gap);
  align-items: end;
  margin-bottom: clamp(2.25rem, 4vw, 3.5rem);
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}

.section-titles {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.section-latin {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--accent);
}

.section-index {
  color: var(--fg-3);
}

.section-dash {
  width: 1.6rem;
  height: 1px;
  background: var(--line-strong);
}

.section-title {
  text-wrap: balance;
  font-family: var(--serif);
  font-size: var(--fs-h2);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: 0.01em;
}

.section-lead {
  color: var(--fg-2);
  max-width: 46ch;
  justify-self: end;
  font-size: 0.98rem;
}

.section-more {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem;
  margin-top: 2.5rem;
}

/* ---------------------------------------------------------------- 按钮 / 链接 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.5rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease),
    border-color 0.35s var(--ease), transform 0.35s var(--ease);
}

.btn svg {
  width: 0.95em;
  height: 0.95em;
  transition: transform 0.35s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:hover svg {
  transform: translate(2px, -2px);
}

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

.btn-solid:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #0a0a0a;
}

.btn-ghost {
  color: var(--fg-2);
}

.btn-ghost:hover {
  color: var(--fg);
  border-color: var(--fg-3);
  background: var(--bg-soft);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--fg-2);
  padding-bottom: 0.2rem;
  border-bottom: 1px solid var(--line);
  transition: color 0.3s, border-color 0.3s;
}

.link-arrow svg {
  width: 0.9em;
  height: 0.9em;
  transition: transform 0.3s var(--ease);
}

.link-arrow:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.link-arrow:hover svg {
  transform: translateX(3px);
}

/* ---------------------------------------------------------------- 顶栏 */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  transition: background-color 0.5s var(--ease-soft), border-color 0.5s var(--ease-soft),
    backdrop-filter 0.5s;
  border-bottom: 1px solid transparent;
}

.topbar.is-stuck {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.1);
  border-bottom-color: var(--line);
}

.topbar-inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding: 1.1rem var(--pad);
  display: flex;
  align-items: center;
  gap: 2rem;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  flex-shrink: 0;
}

.brand-cn {
  font-family: var(--serif);
  font-size: 1.28rem;
  letter-spacing: 0.08em;
}

.brand-latin {
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--fg-3);
}

.nav {
  display: flex;
  gap: 1.9rem;
  margin-left: auto;
}

.nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  position: relative;
  padding-block: 0.2rem;
}

.nav-label {
  font-size: 0.9rem;
  color: var(--fg-2);
  transition: color 0.3s;
}

.nav-latin {
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  opacity: 0.7;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  height: 1px;
  width: 0;
  background: var(--accent);
  transition: width 0.4s var(--ease);
}

.nav-link:hover .nav-label,
.nav-link.is-active .nav-label {
  color: var(--fg);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  width: 100%;
}

.topbar-end {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: 1rem;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 50%;
  color: var(--fg-2);
  border: 1px solid transparent;
  transition: color 0.3s, border-color 0.3s, background-color 0.3s;
}

.icon-btn svg {
  width: 1.05rem;
  height: 1.05rem;
}

.icon-btn:hover {
  color: var(--fg);
  border-color: var(--line);
  background: var(--bg-soft);
}

.theme-btn .theme-paper {
  display: none;
}

:root[data-theme="paper"] .theme-btn .theme-paper {
  display: inline-flex;
}

:root[data-theme="paper"] .theme-btn .theme-ink {
  display: none;
}

.menu-btn {
  display: none;
}

/* 移动菜单 */
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--bg);
  padding: 1.4rem var(--pad) 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.menu-overlay[hidden] {
  display: none;
}

.menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.menu-title {
  font-family: var(--mono);
  font-size: var(--fs-label);
  letter-spacing: 0.26em;
  color: var(--fg-3);
}

.menu-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.menu-list a {
  display: grid;
  grid-template-columns: 2.6rem 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
}

.menu-num {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
}

.menu-label {
  font-family: var(--serif);
  font-size: 1.5rem;
}

.menu-latin {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  color: var(--fg-3);
}

/* ---------------------------------------------------------------- 首屏 */
.hero {
  position: relative;
  min-height: 92svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(6.5rem, 15vh, 10rem) 0 clamp(3rem, 7vh, 5rem);
  overflow: hidden;
}

.hero-aura {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 120%;
  pointer-events: none;
  z-index: 0;
}

.hero-aura span {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.62;
}

.hero-aura span:nth-child(1) {
  width: 46vw;
  height: 46vw;
  top: -8%;
  right: -6%;
  background: radial-gradient(circle, rgba(201, 168, 108, 0.3), transparent 70%);
  animation: drift-a 26s ease-in-out infinite alternate;
}

.hero-aura span:nth-child(2) {
  width: 40vw;
  height: 40vw;
  bottom: -18%;
  left: -8%;
  background: radial-gradient(circle, rgba(60, 120, 112, 0.26), transparent 70%);
  animation: drift-b 32s ease-in-out infinite alternate;
}

.hero-aura span:nth-child(3) {
  width: 28vw;
  height: 28vw;
  top: 30%;
  left: 38%;
  background: radial-gradient(circle, rgba(201, 168, 108, 0.1), transparent 72%);
  animation: drift-a 38s ease-in-out infinite alternate-reverse;
}

@keyframes drift-a {
  to {
    transform: translate3d(-6%, 8%, 0) scale(1.15);
  }
}

@keyframes drift-b {
  to {
    transform: translate3d(8%, -6%, 0) scale(1.1);
  }
}

:root[data-theme="paper"] .hero-aura span {
  opacity: 0.32;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad);
  width: 100%;
}

.hero-name {
  font-family: var(--serif);
  text-wrap: balance;
  font-size: var(--fs-display);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: 0.03em;
  margin-top: 1.4rem;
  background: linear-gradient(175deg, var(--fg) 30%, color-mix(in srgb, var(--fg) 62%, transparent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-latin {
  font-family: var(--mono);
  font-size: clamp(0.62rem, 0.9vw, 0.75rem);
  letter-spacing: 0.52em;
  color: var(--accent);
  margin-top: 1.1rem;
}

.hero-role {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
  margin-top: clamp(1.5rem, 3vw, 2.4rem);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--fg-2);
}

.sep {
  width: 1px;
  height: 0.9em;
  background: var(--line-strong);
  display: inline-block;
}

.hero-lede {
  margin-top: 1.6rem;
  max-width: 54ch;
  color: var(--fg-2);
  font-size: 1rem;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: clamp(2rem, 4vw, 2.8rem);
}

.hero-rail {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  border-top: 1px solid var(--line);
}

.hero-rail-inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding: 1.1rem var(--pad) 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--fg-3);
  text-transform: uppercase;
}

.rail-left {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.hero-rail b {
  color: var(--accent);
  font-weight: 500;
}

.rail-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--fg-3);
}

.rail-scroll {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  white-space: nowrap;
  transition: color 0.3s;
}

.rail-scroll svg {
  width: 0.95rem;
  height: 0.95rem;
  animation: rail-bob 2.6s var(--ease-soft) infinite;
}

@keyframes rail-bob {
  0%,
  100% {
    transform: translateY(-2px);
  }
  50% {
    transform: translateY(2px);
  }
}

.rail-scroll:hover {
  color: var(--accent);
}

/* ---------------------------------------------------------------- 索引列表 */
.index-list {
  border-top: 1px solid var(--line);
}

.index-row a {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr) 12rem 2rem;
  align-items: center;
  gap: var(--gap);
  padding: clamp(1.4rem, 2.4vw, 2.1rem) 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: padding-inline 0.5s var(--ease), color 0.4s;
}

.index-row a::before {
  content: "";
  position: absolute;
  inset: 0 calc(var(--pad) * -1);
  background: linear-gradient(90deg, transparent, var(--accent-soft) 50%, transparent);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
  pointer-events: none;
}

.index-row a:hover::before {
  opacity: 1;
}

.index-row a:hover {
  padding-left: 0.9rem;
}

.row-num {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.row-main {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}

.row-title {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.15vw, 1.85rem);
  line-height: 1.1;
}

.row-lead {
  font-size: 0.92rem;
  color: var(--fg-2);
  max-width: 44ch;
}

.row-latin {
  text-align: right;
  font-size: 0.6rem;
  transition: color 0.4s;
}

.row-arrow {
  display: inline-flex;
  color: var(--fg-3);
  justify-self: end;
  transition: transform 0.5s var(--ease), color 0.4s;
}

.row-arrow svg {
  width: 1.1rem;
  height: 1.1rem;
}

.index-row a:hover .row-arrow {
  transform: translate(4px, -4px);
  color: var(--accent);
}

.index-row a:hover .row-latin {
  color: var(--accent);
}

/* ---------------------------------------------------------------- 摄影精选 */
.strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(0.6rem, 1.2vw, 1.1rem);
}

.strip-item {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.strip-frame {
  display: block;
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background-size: cover;
  background-position: center;
}

.strip-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease), filter 0.8s var(--ease);
  filter: saturate(var(--img-dim)) contrast(1.02);
}

.strip-item:hover .strip-frame img {
  transform: scale(1.05);
  filter: saturate(1.1) contrast(1.05);
}

.strip-caption {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.strip-title {
  font-family: var(--serif);
  font-size: 1.02rem;
  letter-spacing: 0.04em;
}

.strip-meta {
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.18em;
  color: var(--fg-3);
  text-transform: uppercase;
}

/* ---------------------------------------------------------------- 文章列表 */
.post-list {
  border-top: 1px solid var(--line);
}

.post-row a {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr) 9rem;
  gap: var(--gap);
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
  transition: background-color 0.4s var(--ease);
}

.post-row a:hover .post-title {
  color: var(--accent);
}

.post-row a:hover .post-summary {
  color: var(--fg-2);
}

.post-date {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--fg-3);
}

.post-body {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-width: 0;
}

.post-title {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1.9vw, 1.55rem);
  line-height: 1.3;
  transition: color 0.35s;
}

.post-summary {
  font-size: 0.9rem;
  color: var(--fg-3);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.35s;
}

.post-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.35rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--fg-3);
  text-transform: uppercase;
}

.post-tag {
  color: var(--accent);
}

.empty-state {
  padding: 4rem 0;
  color: var(--fg-3);
  font-size: 0.95rem;
  text-align: center;
}

/* ---------------------------------------------------------------- 联系卡 */
.contact-card {
  border: 1px solid var(--line);
  padding: clamp(2.2rem, 6vw, 5rem);
  position: relative;
  overflow: hidden;
  background: var(--bg-soft);
}

.contact-card::after {
  content: "";
  position: absolute;
  width: 60vw;
  height: 60vw;
  right: -30vw;
  bottom: -45vw;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 68%);
  pointer-events: none;
}

.contact-latin {
  color: var(--accent);
}

.contact-title {
  text-wrap: balance;
  font-family: var(--serif);
  font-size: var(--fs-h1);
  font-weight: 400;
  line-height: 1.1;
  margin-top: 1.2rem;
}

.contact-text {
  margin-top: 1.4rem;
  max-width: 48ch;
  color: var(--fg-2);
}

.contact-card .btn {
  margin-top: 2.2rem;
}

/* ---------------------------------------------------------------- 页脚 */
.footer {
  border-top: 1px solid var(--line);
  padding: clamp(3.5rem, 7vw, 5.5rem) 0 2rem;
  position: relative;
  z-index: 2;
}

.footer-inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad);
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--gap);
  align-items: start;
}

.footer-mark {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: 0.06em;
}

.footer-latin {
  margin-top: 0.7rem;
  font-size: 0.6rem;
}

.footer-line {
  margin-top: 1.2rem;
  color: var(--fg-3);
  font-size: 0.86rem;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.9rem;
  color: var(--fg-2);
}

.footer-nav a {
  width: fit-content;
  transition: color 0.3s;
}

.footer-nav a:hover {
  color: var(--accent);
}

.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--fg-3);
  font-family: var(--mono);
  letter-spacing: 0.06em;
}

.footer-meta a:hover {
  color: var(--accent);
}

.footer-base {
  max-width: var(--shell);
  margin: clamp(3rem, 6vw, 5rem) auto 0;
  padding: 1.4rem var(--pad) 0;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--fg-3);
  text-transform: uppercase;
}

.to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.3s;
}

.to-top svg {
  width: 0.9rem;
  height: 0.9rem;
  transform: rotate(-90deg);
}

.to-top:hover {
  color: var(--accent);
}

/* ---------------------------------------------------------------- 页面头（内页共用） */
.page-hero {
  padding: clamp(8rem, 17vh, 12rem) 0 clamp(3rem, 6vw, 5rem);
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.page-title {
  font-family: var(--serif);
  font-size: var(--fs-h1);
  font-weight: 400;
  line-height: 1.06;
  letter-spacing: 0.01em;
  margin-top: 1.2rem;
}

.page-latin {
  margin-top: 1.1rem;
  color: var(--accent);
}

.page-lede {
  margin-top: 1.8rem;
  max-width: 56ch;
  color: var(--fg-2);
  font-size: 1.02rem;
  line-height: 1.95;
}

.page-meta {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  color: var(--fg-3);
  text-transform: uppercase;
}

/* ---------------------------------------------------------------- 正文排版 */
.prose {
  max-width: 46rem;
}

.prose p {
  margin: 1.35em 0;
  color: var(--fg-2);
}

.prose p:first-child {
  margin-top: 0;
}

.prose-lead p {
  font-size: clamp(1.06rem, 1.5vw, 1.25rem);
  line-height: 1.95;
  color: var(--fg-2);
}

.prose-lead p:first-child {
  color: var(--fg);
}

.prose h2 {
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 400;
  margin: 2.6em 0 0.9em;
  line-height: 1.3;
}

.prose h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 400;
  margin: 2em 0 0.7em;
}

.prose strong {
  color: var(--fg);
  font-weight: 600;
}

.prose em {
  font-style: italic;
  color: var(--fg);
}

.prose a {
  color: var(--accent);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  transition: border-color 0.3s;
}

.prose a:hover {
  border-color: var(--accent);
}

.prose ul,
.prose ol {
  margin: 1.3em 0;
  padding-left: 1.2em;
}

.prose ul li,
.prose ol li {
  margin: 0.55em 0;
  color: var(--fg-2);
  position: relative;
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: -1.1em;
  top: 0.78em;
  width: 4px;
  height: 1px;
  background: var(--accent);
}

.prose ol {
  list-style: decimal;
}

.prose ol li::marker {
  color: var(--fg-3);
  font-family: var(--mono);
  font-size: 0.85em;
}

.prose blockquote {
  margin: 2em 0;
  padding: 0.2em 0 0.2em 1.6em;
  border-left: 1px solid var(--accent);
}

.prose blockquote p {
  font-family: var(--serif);
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--fg);
}

.prose hr {
  border: 0;
  height: 1px;
  background: var(--line);
  margin: 3em 0;
}

.prose img {
  margin: 2em 0;
  width: 100%;
}

.prose code {
  font-family: var(--mono);
  font-size: 0.86em;
  padding: 0.15em 0.4em;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--accent-2);
}

.code-block {
  margin: 2em 0;
  padding: 1.2rem 1.4rem;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.8;
  color: var(--fg-2);
}

.code-block code {
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
}

/* ---------------------------------------------------------------- 简历页 */
.resume-tagline {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  color: var(--fg-2);
  margin-top: 1.8rem;
  max-width: 32ch;
  line-height: 1.6;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.focus-card {
  background: var(--bg);
  padding: clamp(1.5rem, 2.6vw, 2.2rem);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: background-color 0.5s var(--ease);
}

.focus-card:hover {
  background: var(--bg-soft);
}

.focus-num {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--accent);
}

.focus-title {
  font-family: var(--serif);
  font-size: 1.22rem;
  font-weight: 400;
}

.focus-desc {
  font-size: 0.86rem;
  color: var(--fg-3);
  line-height: 1.75;
}

.cap-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.cap-row {
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(6rem, 1fr) minmax(0, 1.35fr);
  gap: var(--gap);
  align-items: center;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
}

.cap-name {
  font-size: 0.95rem;
}

.cap-bar {
  position: relative;
  height: 1px;
  background: var(--line);
}

.cap-bar span {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--w);
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.2s var(--ease) 0.2s;
}

.is-in .cap-bar span,
.cap-row.is-in .cap-bar span {
  transform: scaleX(1);
}

.cap-note {
  font-size: 0.82rem;
  color: var(--fg-3);
}

/* 时间轴 */
.timeline {
  display: flex;
  flex-direction: column;
}

.timeline-item {
  display: grid;
  grid-template-columns: 13rem minmax(0, 1fr);
  gap: clamp(1rem, 4vw, 3rem);
  padding: clamp(2rem, 4vw, 3rem) 0;
  border-top: 1px solid var(--line);
}

.timeline-item:last-child {
  border-bottom: 1px solid var(--line);
}

.tl-gutter {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  position: relative;
}

.tl-period {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--fg-3);
  white-space: nowrap;
}

.timeline-item.is-current .tl-period {
  color: var(--accent);
}

.tl-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--line-strong);
  position: relative;
}

.timeline-item.is-current .tl-dot {
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.tl-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.tl-company {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  font-weight: 400;
  line-height: 1.25;
}

.tl-place {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  color: var(--fg-3);
  text-transform: uppercase;
}

.tl-note {
  margin-top: 0.6rem;
  color: var(--fg-3);
  font-size: 0.88rem;
}

.role {
  margin-top: 1.8rem;
}

.role-head {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  flex-wrap: wrap;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
}

.role-title {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.role-period {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  color: var(--fg-3);
}

.role-points {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.role-points li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--fg-2);
  font-size: 0.93rem;
  line-height: 1.8;
}

.role-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 6px;
  height: 1px;
  background: var(--accent);
}

/* 项目 */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.project-card {
  background: var(--bg);
  padding: clamp(1.6rem, 3vw, 2.6rem);
  transition: background-color 0.5s var(--ease);
}

.project-card:hover {
  background: var(--bg-soft);
}

.project-name {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  font-weight: 400;
  line-height: 1.3;
}

.project-meta {
  margin-top: 0.7rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--fg-3);
  text-transform: uppercase;
}

.project-body {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 0.9rem 1rem;
}

.project-body dt {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  padding-top: 0.35rem;
}

.project-body dd {
  font-size: 0.9rem;
  color: var(--fg-2);
  line-height: 1.8;
}

/* 教育 / 证书 */
.edu-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
}

.edu-item {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: var(--gap);
  padding-bottom: 1.6rem;
  border-bottom: 1px solid var(--line);
}

.edu-period {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--fg-3);
}

.edu-school {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 400;
}

.edu-major {
  margin-top: 0.35rem;
  font-size: 0.9rem;
  color: var(--fg-2);
}

.edu-note {
  margin-top: 0.6rem;
  font-size: 0.84rem;
  color: var(--fg-3);
}

.cert-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
  height: fit-content;
}

.cert {
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.1rem 0;
}

.cert-name {
  font-size: 0.98rem;
}

.cert-note {
  font-size: 0.8rem;
  color: var(--fg-3);
}

/* 联系方式 */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.contact-link {
  background: var(--bg);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.6rem;
  padding: clamp(1.4rem, 3vw, 2.2rem);
  transition: background-color 0.4s var(--ease);
}

.contact-link:hover {
  background: var(--bg-soft);
}

.contact-label {
  grid-column: 1 / -1;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--fg-3);
  text-transform: uppercase;
}

.contact-value {
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.8vw, 1.4rem);
  letter-spacing: 0.01em;
}

.contact-link svg {
  width: 1rem;
  height: 1rem;
  color: var(--fg-3);
  transition: transform 0.4s var(--ease), color 0.4s;
}

.contact-link:hover svg {
  transform: translate(3px, -3px);
  color: var(--accent);
}

.contact-note {
  margin-top: 1.6rem;
  color: var(--fg-3);
  font-size: 0.88rem;
}

/* ---------------------------------------------------------------- 摄影集总览 */
.series-list {
  display: flex;
  flex-direction: column;
  gap: clamp(3rem, 7vw, 6rem);
}

.series-link {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
}

.series-row.is-reversed .series-link {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
}

.series-row.is-reversed .series-visual {
  order: 2;
}

.series-frame {
  display: block;
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  aspect-ratio: 4 / 3;
}

.series-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.4s var(--ease), filter 0.9s var(--ease);
  filter: saturate(var(--img-dim));
}

.series-link:hover .series-frame img {
  transform: scale(1.04);
  filter: saturate(1.08);
}

.series-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.series-index {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  color: var(--accent);
}

.series-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.2vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: 0.04em;
}

.series-latin {
  color: var(--fg-3);
}

.series-meta {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--fg-3);
  text-transform: uppercase;
}

.series-intro {
  margin-top: 0.5rem;
  color: var(--fg-2);
  font-size: 0.95rem;
  line-height: 1.9;
  max-width: 40ch;
}

.series-cta {
  margin-top: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.86rem;
  color: var(--fg-2);
  width: fit-content;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--line-strong);
  transition: color 0.3s, border-color 0.3s;
}

.series-cta svg {
  width: 0.85rem;
  height: 0.85rem;
  transition: transform 0.4s var(--ease);
}

.series-link:hover .series-cta {
  color: var(--accent);
  border-color: var(--accent);
}

.series-link:hover .series-cta svg {
  transform: translate(3px, -3px);
}

.big-quote {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.4vw, 2.6rem);
  line-height: 1.5;
  text-align: center;
  color: var(--fg-2);
  max-width: 30ch;
  margin-inline: auto;
}

/* ---------------------------------------------------------------- 画廊 */
.masonry {
  columns: 3;
  column-gap: clamp(0.6rem, 1.2vw, 1.1rem);
}

.photo {
  break-inside: avoid;
  margin-bottom: clamp(0.6rem, 1.2vw, 1.1rem);
  position: relative;
}

.photo-btn {
  display: block;
  width: 100%;
  padding: 0;
  cursor: zoom-in;
}

.photo-frame {
  display: block;
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}

.photo-frame img {
  width: 100%;
  height: auto;
  transition: transform 1.2s var(--ease), opacity 0.8s var(--ease);
  opacity: 0;
}

.photo-frame img.is-loaded {
  opacity: 1;
}

.photo-btn:hover .photo-frame img {
  transform: scale(1.03);
}

.photo-cap {
  position: absolute;
  left: 0.8rem;
  bottom: 0.7rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.72);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.6);
}

.photo:hover .photo-cap {
  opacity: 1;
}

/* 灯箱 */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(4, 6, 7, 0.96);
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr) 5rem;
  align-items: center;
  backdrop-filter: blur(6px);
}

.lightbox[hidden] {
  display: none;
}

.lightbox-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem clamp(1rem, 3vw, 2rem);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
}

.lightbox-counter b {
  color: #e3c88f;
  font-weight: 500;
}

.lightbox-title {
  margin-right: auto;
}

.lightbox-close {
  color: rgba(255, 255, 255, 0.7);
}

.lightbox-close:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.lightbox-figure {
  grid-column: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 3.5rem 0;
}

.lightbox-figure img {
  max-width: 100%;
  max-height: calc(100vh - 7rem);
  width: auto;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}

.lightbox-figure img.is-loaded {
  opacity: 1;
}

.lb-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: rgba(255, 255, 255, 0.45);
  transition: color 0.3s, background-color 0.3s;
}

.lb-nav svg {
  width: 1.5rem;
  height: 1.5rem;
}

.lb-nav:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.03);
}

/* 下一个系列 */
.next-label {
  margin-bottom: 1.4rem;
  color: var(--accent);
}

.next-series {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap);
}

.next-item {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.next-frame {
  display: block;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}

.next-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease), filter 0.8s var(--ease);
  filter: saturate(var(--img-dim));
}

.next-item:hover .next-frame img {
  transform: scale(1.06);
  filter: saturate(1.08);
}

.next-title {
  font-family: var(--serif);
  font-size: 1.05rem;
}

.next-meta {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  color: var(--fg-3);
  text-transform: uppercase;
}

/* ---------------------------------------------------------------- 文章页 */
.article {
  max-width: 52rem;
  margin-inline: auto;
  padding: clamp(7.5rem, 16vh, 11rem) var(--pad) var(--section-y);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--fg-3);
  transition: color 0.3s;
}

.back-link svg {
  width: 0.9rem;
  height: 0.9rem;
}

.back-link:hover {
  color: var(--accent);
}

.article-kicker {
  margin-top: 2.4rem;
  color: var(--accent);
}

.article-title {
  text-wrap: balance;
  font-family: var(--serif);
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  font-weight: 400;
  line-height: 1.2;
  margin-top: 1rem;
}

.article-subtitle {
  margin-top: 1rem;
  color: var(--fg-2);
  font-size: 1.05rem;
}

.article-meta {
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  color: var(--fg-3);
  text-transform: uppercase;
}

.article-body {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  max-width: none;
}

.article-body > p:first-of-type {
  font-size: 1.1rem;
  color: var(--fg);
}

.article-foot {
  margin-top: clamp(3.5rem, 7vw, 5rem);
  border-top: 1px solid var(--line);
  padding-top: 2rem;
}

.author-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.2rem;
}

.author-mark {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  font-family: var(--serif);
  font-size: 1.2rem;
  color: var(--accent);
}

.author-name {
  font-size: 0.95rem;
}

.author-desc {
  font-size: 0.82rem;
  color: var(--fg-3);
  line-height: 1.6;
}

.author-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--fg-2);
  white-space: nowrap;
}

.author-link svg {
  width: 0.85rem;
  height: 0.85rem;
}

.author-link:hover {
  color: var(--accent);
}

.article-nav {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.an-item {
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.2rem 1.4rem;
  transition: background-color 0.4s;
}

.an-item:hover {
  background: var(--bg-soft);
}

.an-item span {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  color: var(--fg-3);
  text-transform: uppercase;
}

.an-item b {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 0.98rem;
  line-height: 1.4;
}

.an-next {
  text-align: right;
  align-items: flex-end;
}

.article-nav.is-single {
  grid-template-columns: 1fr;
}

/* ---------------------------------------------------------------- 404 */
.notfound {
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding-block: 8rem;
}

.nf-code {
  font-family: var(--serif);
  font-size: clamp(6rem, 22vw, 16rem);
  line-height: 0.85;
  color: transparent;
  -webkit-text-stroke: 1px var(--line-strong);
  margin-top: 1rem;
}

.nf-text {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  margin-top: 1.5rem;
}

.nf-sub {
  color: var(--fg-3);
  margin-top: 0.8rem;
}

/* ---------------------------------------------------------------- 滚动进场 */
.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 1s var(--ease) var(--d, 0s), transform 1s var(--ease) var(--d, 0s);
  will-change: opacity, transform;
}

.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------------------------------------------------------------- 响应式 */
@media (max-width: 1180px) {
  .strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .strip-item:nth-child(5) {
    display: none;
  }

  .focus-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .next-series {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1000px) {
  .nav {
    display: none;
  }

  .menu-btn {
    display: inline-flex;
  }

  .topbar-inner {
    gap: 1rem;
  }

  .section-head {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 0.9rem;
  }

  .section-lead {
    justify-self: start;
  }

  .masonry {
    columns: 2;
  }

  .series-link,
  .series-row.is-reversed .series-link {
    grid-template-columns: 1fr;
  }

  .series-row.is-reversed .series-visual {
    order: 0;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .tl-gutter {
    flex-direction: row;
    align-items: center;
    gap: 0.7rem;
  }

  .project-grid,
  .edu-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .post-row a {
    grid-template-columns: 5.5rem minmax(0, 1fr);
  }

  .post-side {
    display: none;
  }

  .index-row a {
    grid-template-columns: 2.6rem minmax(0, 1fr) 1.5rem;
  }

  .row-latin {
    display: none;
  }
}

@media (max-width: 640px) {
  :root {
    --section-y: clamp(3.5rem, 12vw, 5rem);
  }

  .strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .masonry {
    columns: 1;
  }

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

  .lb-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 3rem;
    height: 4rem;
  }

  .lb-prev {
    left: 0;
  }

  .lb-next {
    right: 0;
  }

  .lightbox-figure {
    grid-column: 1;
    padding: 4rem 0;
  }

  .lightbox-figure img {
    max-height: calc(100vh - 9rem);
  }

  .cap-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 1rem 0;
  }

  .cap-note {
    font-size: 0.78rem;
  }

  .hero-name {
    letter-spacing: 0.02em;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .edu-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .author-card {
    grid-template-columns: auto 1fr;
  }

  .author-link {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .article-nav {
    grid-template-columns: 1fr;
  }

  .rail-scroll {
    display: none;
  }
}

/* ---------------------------------------------------------------- 减少动效 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }

  .cursor-glow {
    display: none;
  }
}

/* 打印：简历要能直接打印 */
@media print {
  .topbar,
  .footer,
  .grain,
  .cursor-glow,
  .hero-aura,
  .scroll-hint,
  .hero-actions {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .section,
  .timeline-item {
    break-inside: avoid;
  }
}