/* =========================================================
   私人宇宙 · 长镜头（Long Take）
   零依赖静态主题框架 —— 样式表
   修改提示：颜色 / 字体 / 间距都定义在 :root 变量里。
   ========================================================= */

:root {
  /* 色彩 */
  --bg: #0b0e12;            /* 夜色墨蓝 */
  --bg-soft: #10151b;       /* 略浅的卡片 / 区块底色 */
  --ink: #e9e6df;           /* 暖纸白 */
  --muted: #9aa0a6;         /* 次要文字 */
  --faint: #687077;         /* 更弱的小字 */
  --line: rgba(233, 230, 223, 0.14);
  --accent: #c0a877;        /* 沙金色点缀 */

  /* 字体 */
  --serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, "Times New Roman", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;

  /* 宽度 */
  --max: 1080px;
  --read: 680px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

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

::selection {
  background: rgba(192, 168, 119, 0.3);
}

:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

.kicker {
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
}

.more {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted);
  white-space: nowrap;
}

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

.text-link {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--accent);
  border-bottom: 1px solid transparent;
}

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

.center {
  text-align: center;
}

/* ---------- 导航 ---------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  transition: background 0.4s ease, padding 0.4s ease, border-color 0.4s ease;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(11, 14, 18, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--line);
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--ink);
}

.nav-links {
  display: flex;
  gap: 30px;
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.nav-links a:hover {
  color: var(--ink);
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.2em;
  cursor: pointer;
}

/* ---------- 首页 Hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.hero-bg-layer {
  position: absolute;
  inset: -5%;
  z-index: 0;
  overflow: hidden;
  will-change: transform;
  animation:
    hero-in 2.6s ease both,
    kenburns 120s ease-in-out 2.6s infinite alternate;
}

.hero-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  will-change: transform;
}

@keyframes hero-in {
  from { opacity: 0; transform: scale(1.04); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes kenburns {
  0%   { transform: scale(1.02) translate(0, 0); }
  100% { transform: scale(1.13) translate(1.6%, -1.4%); }
}

.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(11, 14, 18, 0.55) 0%,
    rgba(11, 14, 18, 0.16) 38%,
    rgba(11, 14, 18, 0.5) 72%,
    rgba(11, 14, 18, 0.9) 100%
  );
}

.hero-inner {
  position: relative;
  z-index: 3;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 130px 28px 150px;
}

.hero-kicker {
  animation: fade-up 1.2s ease 0.3s both;
}

.hero h1 {
  font-family: var(--sans);
  font-weight: 300;
  text-transform: uppercase;
  font-size: clamp(30px, 5.8vw, 68px);
  letter-spacing: 0.22em;
  line-height: 1.25;
  margin: 0;
  animation: fade-up 1.2s ease 0.55s both;
}

.hero-tagline {
  color: rgba(233, 230, 223, 0.85);
  font-size: clamp(15px, 2vw, 18px);
  letter-spacing: 0.12em;
  max-width: 560px;
  animation: fade-up 1.2s ease 0.8s both;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}

.hero-meta,
.scroll-cue {
  position: absolute;
  bottom: 30px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: rgba(233, 230, 223, 0.72);
  text-transform: uppercase;
}

.hero-meta {
  left: 32px;
}

.hero-sub {
  position: absolute;
  z-index: 3;
  bottom: 34px;
  left: 32px;
  font-size: 14px;
  line-height: 1.9;
  letter-spacing: 0.4em;
  color: rgba(233, 230, 223, 0.85);
  animation: fade-up 1.2s ease 1.1s both;
}

.scroll-cue {
  z-index: 3;
  right: 32px;
  text-align: center;
}

.scroll-cue::after {
  content: "";
  display: block;
  width: 1px;
  height: 34px;
  margin: 10px auto 0;
  background: linear-gradient(180deg, rgba(233, 230, 223, 0.8), transparent);
  animation: cue 2.4s ease-in-out infinite;
}

@keyframes cue {
  0%   { opacity: 0; transform: scaleY(0); transform-origin: top; }
  45%  { opacity: 1; }
  100% { opacity: 0; transform: scaleY(1); transform-origin: bottom; }
}

/* ---------- 首页氛围层：雾气 ---------- */

.hero-fog {
  position: absolute;
  inset: -12%;
  z-index: 2;
  pointer-events: none;
  will-change: transform;
}

.fog-body {
  position: absolute;
  inset: 0;
  mix-blend-mode: screen;
  filter: blur(56px);
  animation: fog-drift-1 72s ease-in-out infinite alternate;
}

.fog-1 .fog-body {
  opacity: 0.5;
  background-image:
    radial-gradient(ellipse 42% 32% at 28% 72%, rgba(255, 255, 255, 0.5), transparent 70%),
    radial-gradient(ellipse 34% 26% at 66% 38%, rgba(255, 255, 255, 0.36), transparent 70%),
    radial-gradient(ellipse 48% 34% at 82% 82%, rgba(255, 255, 255, 0.3), transparent 70%);
}

.fog-2 .fog-body {
  opacity: 0.32;
  background-image:
    radial-gradient(ellipse 38% 30% at 22% 32%, rgba(214, 224, 238, 0.5), transparent 70%),
    radial-gradient(ellipse 44% 32% at 58% 68%, rgba(214, 224, 238, 0.4), transparent 70%),
    radial-gradient(ellipse 30% 26% at 88% 46%, rgba(214, 224, 238, 0.35), transparent 70%);
  animation-name: fog-drift-2;
  animation-duration: 96s;
}

@keyframes fog-drift-1 {
  0%   { transform: translate(-6%, -2%) scale(1); }
  100% { transform: translate(6%, 3%) scale(1.18); }
}

@keyframes fog-drift-2 {
  0%   { transform: translate(8%, 4%) scale(1.12); }
  100% { transform: translate(-8%, -4%) scale(1); }
}

/* ---------- 内页页头 ---------- */

.page-head {
  padding: 150px 0 46px;
  border-bottom: 1px solid var(--line);
}

.page-head h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(36px, 5vw, 56px);
  letter-spacing: 0.05em;
  margin: 16px 0 14px;
}

.page-head .lede {
  color: var(--muted);
  font-size: 15px;
  max-width: 580px;
}

/* ---------- 区块 ---------- */

.section {
  padding: 110px 0;
}

.section.alt {
  background: var(--bg-soft);
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 44px;
}

.section-head h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 30px;
  letter-spacing: 0.04em;
  margin-top: 12px;
}

/* ---------- 旅程列表 ---------- */

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

.journey-row {
  display: grid;
  grid-template-columns: 92px 110px 1fr auto;
  gap: 26px;
  align-items: center;
  padding: 26px 10px;
  border-bottom: 1px solid var(--line);
  transition: background 0.35s ease, padding-left 0.35s ease;
}

.journey-row:hover {
  background: rgba(255, 255, 255, 0.025);
  padding-left: 22px;
}

.jrow-year {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--faint);
}

.jrow-thumb {
  width: 110px;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 2px;
}

.jrow-title {
  display: block;
  font-family: var(--serif);
  font-size: 21px;
  letter-spacing: 0.04em;
}

.jrow-place {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-top: 3px;
}

.jrow-arrow {
  color: var(--faint);
  font-size: 14px;
  letter-spacing: 0.1em;
}

/* ---------- 占位块 ---------- */

.ph {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--faint);
  font-size: 12px;
  letter-spacing: 0.2em;
  background: linear-gradient(135deg, #131a21, #1b232c);
  border: 1px dashed var(--line);
}

.jrow-thumb.ph {
  border-radius: 2px;
}

/* ---------- 思绪列表 ---------- */

.note-row {
  display: grid;
  grid-template-columns: 130px 1fr auto;
  gap: 20px;
  padding: 28px 10px;
  border-bottom: 1px solid var(--line);
  transition: background 0.35s ease, padding-left 0.35s ease;
}

.note-row:hover {
  background: rgba(255, 255, 255, 0.025);
  padding-left: 22px;
}

.note-date {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--faint);
  padding-top: 8px;
}

.note-title {
  display: block;
  font-family: var(--serif);
  font-size: 21px;
  letter-spacing: 0.04em;
}

.note-sum {
  display: block;
  color: var(--muted);
  font-size: 14px;
  margin-top: 4px;
  max-width: 640px;
}

/* ---------- 影像网格 ---------- */

.frames-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.frame {
  cursor: zoom-in;
}

.frame-img {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: 2px;
  background: var(--bg-soft);
}

.frame-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.frame:hover .frame-img img {
  transform: scale(1.035);
}

.frame-cap {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.frame-cap b {
  color: var(--ink);
  font-weight: 500;
}

/* ---------- 影像 · 时间轴 ---------- */

.timeline {
  position: relative;
  padding-left: 96px;
}

.tl-track {
  position: absolute;
  left: 18px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, rgba(233, 230, 223, 0.22), rgba(233, 230, 223, 0.04));
}

.tl-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 48px;
  align-items: center;
  min-height: 190px;
  padding: 30px 0;
  border-bottom: 1px solid rgba(233, 230, 223, 0.06);
}

.tl-dot {
  position: absolute;
  left: -78px;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -4.5px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--accent);
}

.tl-date {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--faint);
}

.tl-head h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 26px;
  margin: 8px 0 4px;
}

.tl-head p {
  font-size: 13px;
  color: var(--muted);
}

.tl-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.35s ease, transform 0.35s ease, visibility 0.35s;
}

.tl-item:hover .tl-preview,
.tl-item:focus-within .tl-preview {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.tl-go {
  grid-column: 1 / -1;
  justify-self: start;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line);
  transition: color 0.3s ease, border-color 0.3s ease;
}

.tl-go:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.tl-end {
  position: relative;
  padding: 44px 0 76px;
}

.tl-end::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 0;
  bottom: 0;
  border-left: 1px dashed rgba(233, 230, 223, 0.12);
}

.tl-end p {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--faint);
}

@media (max-width: 820px) {
  .timeline {
    padding-left: 52px;
  }

  .tl-track {
    left: 13px;
  }

  .tl-dot {
    left: -42px;
  }

  .tl-end::before {
    left: 13px;
  }

  .tl-item {
    grid-template-columns: 1fr;
    gap: 16px;
    min-height: 0;
    padding: 26px 0;
  }

  .tl-preview {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tl-preview {
    transition: none;
  }
}

/* ---------- 足迹地图 ---------- */

.journey-map {
  position: relative;
  background: #06080b;
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
  min-height: 560px;
}

.map-canvas {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 560px;
}

.map-canvas svg {
  display: block;
  width: 100%;
  height: 100%;
}

.map-province {
  fill: #0a0e13;
  stroke: #212a33;
  stroke-width: 0.5;
  vector-effect: non-scaling-stroke;
  transition: fill 0.8s ease, stroke 0.8s ease;
}

.map-province.is-explored {
  fill: #101a24;
  stroke: #54626f;
  stroke-width: 0.7;
  cursor: pointer;
}

.map-province.is-explored:hover,
.map-province.is-explored:focus-visible {
  fill: #1b2733;
  stroke: #b7c4d0;
  stroke-width: 1;
  outline: none;
  filter: drop-shadow(0 0 8px rgba(150, 176, 202, 0.35));
}

.map-dot-hit {
  fill: transparent;
  cursor: pointer;
}

.map-dot {
  fill: #b7c4d0;
  opacity: 0.7;
  pointer-events: none;
  transition: opacity 0.8s ease, fill 0.8s ease;
}

.map-dot-hit:hover + .map-dot,
.map-dot-hit:focus-visible + .map-dot {
  opacity: 1;
  fill: #e6edf4;
  filter: drop-shadow(0 0 5px rgba(160, 186, 212, 0.8));
}

.map-fog {
  position: absolute;
  inset: -10%;
  z-index: 2;
  pointer-events: none;
  will-change: transform;
}

.map-fog .fog-body {
  opacity: 0.4;
}

.map-fog-1 .fog-body {
  background-image:
    radial-gradient(ellipse 42% 30% at 30% 45%, rgba(150, 175, 200, 0.5), transparent 70%),
    radial-gradient(ellipse 36% 28% at 70% 60%, rgba(150, 175, 200, 0.35), transparent 70%);
}

.map-fog-2 .fog-body {
  opacity: 0.25;
  background-image:
    radial-gradient(ellipse 40% 32% at 25% 65%, rgba(160, 185, 210, 0.45), transparent 70%),
    radial-gradient(ellipse 44% 30% at 75% 30%, rgba(160, 185, 210, 0.35), transparent 70%);
  animation-name: fog-drift-2;
  animation-duration: 96s;
}

.map-tip {
  position: absolute;
  z-index: 5;
  min-width: 230px;
  max-width: 290px;
  padding: 18px 22px 16px;
  background: rgba(8, 11, 15, 0.94);
  border: 1px solid var(--line);
  border-radius: 2px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.map-tip.is-visible {
  opacity: 1;
  transform: none;
}

.tip-name {
  display: block;
  font-family: var(--serif);
  font-size: 20px;
  letter-spacing: 0.05em;
}

.tip-en {
  display: block;
  margin-top: 5px;
  font-size: 10px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--accent);
}

.tip-note {
  margin-top: 13px;
  font-size: 13px;
  line-height: 1.85;
  color: var(--muted);
}

.tip-go {
  display: block;
  margin-top: 14px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
}

.map-hint {
  position: absolute;
  bottom: 18px;
  left: 22px;
  z-index: 4;
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--faint);
  pointer-events: none;
}

.map-canvas.is-hidden {
  display: none;
}

.map-toggle {
  display: block;
  margin: 18px auto 0;
  padding: 4px 2px;
  background: none;
  border: 0;
  border-bottom: 1px solid transparent;
  font: inherit;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
  cursor: pointer;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.map-toggle:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

@media (max-width: 640px) {
  .journey-map {
    min-height: 380px;
  }

  .map-canvas {
    height: 380px;
  }

  .map-hint {
    bottom: 14px;
    left: 16px;
    font-size: 10px;
  }
}

/* ---------- 文章 / 详情页 ---------- */

.article-head {
  padding: 150px 0 50px;
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.article-head h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(30px, 4.5vw, 46px);
  max-width: 720px;
  margin: 16px auto 18px;
}

.article-meta {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--faint);
}

.article-body {
  max-width: var(--read);
  margin: 0 auto;
  padding: 72px 28px 30px;
  font-family: var(--serif);
  font-size: 17px;
  line-height: 2.1;
  color: #d8d5cd;
}

.article-body p + p {
  margin-top: 1.6em;
}

.article-body blockquote {
  margin: 2.4em 0;
  padding: 0 0 0 24px;
  border-left: 1px solid var(--accent);
  color: var(--accent);
  font-style: italic;
}

.letterbox {
  margin: 56px auto;
}

.letterbox img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border-radius: 2px;
}

.letterbox figcaption {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--faint);
  text-align: right;
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 20px 0 40px;
}

.gallery-grid .frame-cap {
  margin-top: 10px;
}

.article-foot {
  max-width: var(--max);
  margin: 0 auto;
  padding: 26px 28px 120px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: 0.12em;
}

/* ---------- 关于页 ---------- */

.about-block {
  padding: 90px 0 110px;
}

.about-block .prose {
  max-width: var(--read);
  color: #d8d5cd;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 2.05;
}

.about-block .prose p + p {
  margin-top: 1.4em;
}

.now-box {
  margin-top: 70px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 38px 42px;
  max-width: var(--max);
}

.now-box h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 26px;
  margin: 14px 0 22px;
}

.now-box ul {
  list-style: none;
}

.now-box li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  color: var(--muted);
}

.now-box li:last-child {
  border-bottom: 0;
}

.now-box li b {
  color: var(--ink);
  font-weight: 500;
  margin-right: 14px;
  letter-spacing: 0.08em;
}

/* ---------- 关于卡片（首页） ---------- */

.about-teaser {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 54px 58px;
}

.about-teaser h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 30px;
  margin: 14px 0 18px;
}

.about-teaser p {
  color: var(--muted);
  max-width: 640px;
  margin-bottom: 26px;
}

/* ---------- 页脚 ---------- */

footer {
  border-top: 1px solid var(--line);
  padding: 44px 0;
}

.foot-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  color: var(--faint);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.foot-links {
  display: flex;
  gap: 24px;
}

.foot-links a:hover {
  color: var(--ink);
}

/* ---------- 灯箱 ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(5, 7, 9, 0.94);
}

.lightbox.open {
  display: flex;
}

.lightbox img {
  max-width: min(92vw, 1400px);
  max-height: 76vh;
  object-fit: contain;
}

.lb-cap {
  margin-top: 20px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.lb-close,
.lb-prev,
.lb-next {
  position: absolute;
  background: none;
  border: 0;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.2em;
  cursor: pointer;
  padding: 12px;
}

.lb-close:hover,
.lb-prev:hover,
.lb-next:hover {
  color: var(--ink);
}

.lb-close {
  top: 22px;
  right: 28px;
}

.lb-prev {
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
}

.lb-next {
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
}

/* ---------- 滚动显现 ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

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

/* ---------- 响应式 ---------- */

@media (max-width: 860px) {
  .section {
    padding: 74px 0;
  }

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

  .about-teaser {
    padding: 40px 34px;
  }

  .now-box {
    padding: 30px 26px;
  }

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

@media (max-width: 640px) {
  .nav {
    padding: 18px 22px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 18px;
    padding: 22px 28px 30px;
    background: rgba(11, 14, 18, 0.96);
    border-bottom: 1px solid var(--line);
  }

  .nav.open .nav-links {
    display: flex;
  }

  .page-head {
    padding-top: 130px;
  }

  .article-head {
    padding-top: 130px;
  }

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

  .journey-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 24px 6px;
  }

  .jrow-thumb {
    width: 100%;
  }

  .note-row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 24px 6px;
  }

  .note-date {
    padding-top: 0;
  }

  .scroll-cue {
    display: none;
  }

  .hero-sub {
    bottom: 28px;
    left: 22px;
    font-size: 12px;
    letter-spacing: 0.26em;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .lb-prev {
    left: 10px;
  }

  .lb-next {
    right: 10px;
  }
}

/* ---------- 减少动态效果 ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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

  .hero-bg,
  .hero-bg-layer,
  .hero-kicker,
  .hero h1,
  .hero-tagline {
    animation: none;
  }

  .hero-bg-layer {
    animation: none;
  }

  .fog-body {
    animation: none;
  }

}