/* ==========================================================================
   FXN0212 — 作品合集（图片主导）
   外壳极简，让图片做主角。所有可调项都在 :root。
   ========================================================================== */

:root {
  --bg: #0b0a09;
  --bg-soft: #121110;
  --ink: #f3efe8;
  --muted: #928c83;
  --line: rgba(255, 255, 255, 0.1);
  --line-soft: rgba(255, 255, 255, 0.06);
  --accent: #d8b26a;
  --ease: cubic-bezier(0.22, 0.7, 0.24, 1);
  --gut: 18px;
  --pad: clamp(1.25rem, 4vw, 3.5rem);
  --font: "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", "Songti SC", "SimSun", Georgia, serif;
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
  background: var(--bg);
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  display: flex;
  flex-direction: column;
  min-height: 100svh;
}

/* 短页面也把页脚压到底部（404 页用得到） */
main { flex: 1 0 auto; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: rgba(216, 178, 106, 0.3); }

:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 4px;
}

/* ---------- 顶部 ---------- */
.top {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  padding: 0 var(--pad);
  height: 64px;
  display: flex;
  align-items: center;
  gap: 2rem;
  border-bottom: 1px solid transparent;
  transition: background 0.4s var(--ease), border-color 0.4s;
}
.top.scrolled {
  background: rgba(11, 10, 9, 0.82);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom-color: var(--line-soft);
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  margin-right: auto;
  font-weight: 600;
  letter-spacing: 0.06em;
  font-size: 0.92rem;
}
.brand b { font-weight: 700; letter-spacing: 0.12em; }
.brand span { color: var(--muted); font-size: 0.74rem; letter-spacing: 0.16em; font-weight: 400; }

.top nav { display: flex; gap: 1.8rem; font-size: 0.83rem; letter-spacing: 0.08em; }
.top nav a { color: var(--muted); transition: color 0.25s; position: relative; }
.top nav a:hover { color: var(--ink); }
.top nav a[aria-current="page"] { color: var(--ink); }
.top nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1px;
  background: var(--accent);
}

/* ---------- 首屏 ---------- */
.hero {
  padding: clamp(5rem, 13vh, 10rem) var(--pad) clamp(1.4rem, 3.5vh, 3rem);
  max-width: 1500px;
  margin-inline: auto;
}
.hero .kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.6rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.hero .kicker::before {
  content: "";
  width: 34px; height: 1px;
  background: var(--accent);
  opacity: 0.7;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(1.72rem, 5.9vw, 4.6rem);
  line-height: 1.15;
  font-weight: 500;
  letter-spacing: -0.01em;
  max-width: 18em;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.hero .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
  margin-top: 2rem;
  font-size: 0.86rem;
  color: var(--muted);
}
.hero .meta b { color: var(--ink); font-weight: 500; font-variant-numeric: tabular-nums; }

/* ---------- 筛选栏 ---------- */
.filters {
  position: sticky;
  top: 64px;
  z-index: 50;
  margin-top: 1rem;
  padding: 0.85rem var(--pad);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  background: rgba(11, 10, 9, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.chip {
  padding: 0.38rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  transition: color 0.25s, border-color 0.25s, background 0.25s;
}
.chip:hover { color: var(--ink); border-color: rgba(255, 255, 255, 0.28); }
.chip[aria-pressed="true"] {
  color: #14120e;
  background: var(--accent);
  border-color: var(--accent);
}
.count {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

/* ---------- 瀑布流 ---------- */
.gallery {
  padding: var(--gut) var(--pad) clamp(3rem, 8vh, 6rem);
  max-width: 1500px;
  margin-inline: auto;
  columns: 3;
  column-gap: var(--gut);
}
@media (max-width: 1100px) { .gallery { columns: 2; } }
@media (max-width: 620px)  { .gallery { columns: 1; column-gap: 0; } .gallery .card { margin-bottom: 14px; } }

.card {
  position: relative;
  display: block;
  width: 100%;
  margin: 0 0 var(--gut);
  break-inside: avoid;
  border-radius: 3px;
  overflow: hidden;
  background: var(--bg-soft);
  cursor: zoom-in;
  -webkit-tap-highlight-color: transparent;
}
.card img {
  width: 100%;
  height: auto;
  opacity: 0;
  transform: scale(1.015);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.card img.loaded { opacity: 1; transform: none; }
.card:hover img,
.card:focus-within img { transform: scale(1.045); }

.card .hit {
  position: absolute;
  inset: 0;
  z-index: 3;
  cursor: zoom-in;
  border-radius: 3px;
}
.card .hit:focus-visible { outline: 1px solid var(--accent); outline-offset: -3px; }

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 5, 4, 0.78), rgba(6, 5, 4, 0.1) 42%, transparent 68%);
  opacity: 0;
  transition: opacity 0.45s var(--ease);
  pointer-events: none;
}
.card:hover::after,
.card:focus-within::after { opacity: 1; }

.card figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 2;
  padding: 0.95rem 1rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.8rem;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
  pointer-events: none;
}
.card:hover figcaption,
.card:focus-within figcaption { opacity: 1; transform: none; }

.card .no {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.65);
}
.card .ttl { font-size: 0.86rem; font-weight: 500; letter-spacing: 0.02em; }
.card .yr {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.6);
  white-space: nowrap;
}

/* 隐藏项（筛选时用） */
.card[hidden] { display: none; }

/* ---------- 关于 ---------- */
.about {
  border-top: 1px solid var(--line-soft);
  padding: clamp(3.5rem, 9vh, 7rem) var(--pad);
  max-width: 1500px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr minmax(0, 26rem);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}
.about .label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.4rem;
}
.about h2 {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.4vw, 2.4rem);
  line-height: 1.4;
  font-weight: 500;
  margin-bottom: 1.4rem;
  max-width: 20em;
}
.about p { color: #b9b3aa; font-size: 0.96rem; max-width: 34em; }
.about p + p { margin-top: 1rem; }
.about .facts { display: grid; gap: 1.1rem; }
.about .fact { border-top: 1px solid var(--line-soft); padding-top: 0.9rem; }
.about .fact b { display: block; font-size: 1.5rem; font-weight: 500; letter-spacing: -0.01em; }
.about .fact span { font-size: 0.8rem; color: var(--muted); letter-spacing: 0.06em; }

/* ---------- 联系 ---------- */
.contact {
  border-top: 1px solid var(--line-soft);
  padding: clamp(3rem, 8vh, 6rem) var(--pad);
  max-width: 1500px;
  margin-inline: auto;
}
.contact .label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.2rem;
}
.contact a.mail {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 5vw, 3.4rem);
  line-height: 1.2;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.3s, color 0.3s;
  display: inline-block;
}
.contact a.mail:hover { color: var(--accent); border-color: var(--accent); }
.contact .links { display: flex; gap: 1.8rem; margin-top: 2rem; font-size: 0.86rem; color: var(--muted); }
.contact .links a:hover { color: var(--ink); }

/* ---------- 页脚 ---------- */
.foot {
  border-top: 1px solid var(--line-soft);
  padding: 1.6rem var(--pad) 2.4rem;
  max-width: 1500px;
  width: 100%;
  margin-inline: auto;
  flex: 0 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ---------- 灯箱 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  border: 0;
  padding: 0;
  background: rgba(8, 7, 6, 0.96);
  color: var(--ink);
  overflow: hidden;
}
.lightbox::backdrop { background: rgba(8, 7, 6, 0.96); }
.lightbox[open] { display: grid; grid-template-rows: minmax(0, 1fr) auto; }

.lb-stage {
  position: relative;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 6vh, 4rem) clamp(1rem, 8vw, 7rem);
  min-height: 0;
  height: 100%;
  overflow: hidden;
}
.lb-img {
  max-width: 100%;
  max-height: calc(100svh - 150px);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 2px;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.9);
  animation: lb-in 0.45s var(--ease);
}
@keyframes lb-in {
  from { opacity: 0; transform: scale(0.985); }
  to { opacity: 1; transform: none; }
}

.lb-bar {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1rem clamp(1rem, 4vw, 2.5rem) 1.4rem;
  border-top: 1px solid var(--line-soft);
}
.lb-title { font-size: 0.9rem; }
.lb-sub { font-family: var(--mono); font-size: 0.7rem; color: var(--muted); letter-spacing: 0.1em; }
.lb-count { margin-left: auto; font-family: var(--mono); font-size: 0.75rem; color: var(--muted); letter-spacing: 0.1em; }

.lb-btn {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.03);
  transition: background 0.25s, border-color 0.25s, transform 0.25s;
}
.lb-btn:hover { background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.3); }
.lb-btn:active { transform: scale(0.94); }

.lb-close {
  position: absolute;
  top: clamp(0.8rem, 3vh, 2rem);
  right: clamp(0.8rem, 3vw, 2rem);
  z-index: 2;
}
.lb-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
}
.lb-prev { left: clamp(0.6rem, 2vw, 2rem); }
.lb-next { right: clamp(0.6rem, 2vw, 2rem); }

@media (max-width: 720px) {
  .lb-nav { display: none; }
  .lb-stage { touch-action: pan-y; }
}

/* ---------- 动效 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--d, 0s);
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 移动端 ---------- */
@media (max-width: 720px) {
  .top { height: 56px; gap: 1rem; }
  .top nav { gap: 1.2rem; font-size: 0.78rem; }
  .brand span { display: none; }
  .about { grid-template-columns: 1fr; gap: 2rem; }
  .about .facts { grid-template-columns: repeat(3, 1fr); gap: 0.8rem; }
  .about .fact b { font-size: 1.15rem; }
  .filters { top: 56px; }
  .count { display: none; }
  .card figcaption { opacity: 1; transform: none; }
  .card::after { opacity: 1; }
}


/* ==========================================================================
   多页结构：首页系列卡 / 系列页头 / 翻页
   ========================================================================== */

/* ---------- 首页系列卡 ---------- */
.series {
  padding: 0 var(--pad) clamp(3rem, 7vh, 5rem);
  max-width: 1500px;
  margin-inline: auto;
}
.series-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gut);
}
.series-card {
  position: relative;
  display: block;
  aspect-ratio: 3 / 2;
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg-soft);
  border: 1px solid rgba(255, 255, 255, 0.09);
  transition: border-color 0.35s var(--ease);
}
.series-card:hover { border-color: rgba(255, 255, 255, 0.22); }
.series-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease), opacity 0.9s var(--ease);
}
.series-card:hover img { transform: scale(1.045); }
.series-card::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(6,5,4,0.95) 0%, rgba(6,5,4,0.72) 28%, rgba(6,5,4,0.12) 58%, rgba(6,5,4,0.22));
  pointer-events: none;
}
.series-card .sc-no {
  position: absolute;
  top: 1rem; left: 1.1rem;
  z-index: 2;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: rgba(255,255,255,0.7);
}
.series-card .sc-body {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 2;
  padding: 1.2rem 1.2rem 1.35rem;
}
.series-card h2 {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 0.35rem;
}
.series-card p { font-size: 0.82rem; color: rgba(255,255,255,0.68); }
.series-card .sc-count {
  margin-top: 0.6rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--accent);
}

/* ---------- 系列页头 ---------- */
.series-head {
  padding: clamp(6rem, 14vh, 9rem) var(--pad) clamp(1.2rem, 3vh, 2rem);
  max-width: 1500px;
  margin-inline: auto;
  border-bottom: 1px solid var(--line-soft);
}
.series-head .kicker { margin-bottom: 1.2rem; }
.series-head h1 {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 7vw, 4.8rem);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.1;
  margin-bottom: 1rem;
}
.series-head .lede {
  color: #b9b3aa;
  font-size: clamp(0.95rem, 1.2vw, 1.05rem);
  max-width: 34em;
}
.series-head .meta-row {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.6rem;
  margin-top: 1.4rem;
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

/* ---------- 翻页 ---------- */
.pager {
  border-top: 1px solid var(--line-soft);
  max-width: 1500px;
  margin-inline: auto;
  padding: clamp(2rem, 5vh, 3.5rem) var(--pad);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.pager a {
  display: block;
  max-width: 46%;
}
.pager .p-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.pager .p-title {
  font-family: var(--serif);
  font-size: clamp(1.1rem, 2.2vw, 1.5rem);
  transition: color 0.3s;
}
.pager a:hover .p-title { color: var(--accent); }
.pager .next { text-align: right; margin-left: auto; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .series-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .series-grid { grid-template-columns: 1fr; }
  .series-card { aspect-ratio: 3 / 2; }
  .series-card h2 { font-size: 1.35rem; }
  .pager a { max-width: 100%; }
  .pager .next { text-align: left; }
}