/* ==========================================================================    页面版式：首页、探索乐园、亲子研学、游玩指南、关于起源岛、推荐路线、404    令牌与公共组件在 style.css；这里只放单页结构与页面级滚动叙事。    ========================================================================== */
 /* ==========================================================================    首页 · Hero    ========================================================================== */
.hero {   position: relative;   isolation: isolate;   display: flex;
  align-items: flex-end;   min-height: 620px;   height: clamp(620px, calc(100dvh - var(--header-height)), 880px);   overflow: hidden;
  color: var(--ink);   background: var(--black);   /* 让 Hero 内的绝对定位元素与 page-width 内容列对齐 */   --hero-bare: max(var(--gutter), calc((100% - var(--page-width)) / 2));
} .hero .hero-picture, .hero .hero-image, .hero-shade { position: absolute; inset: 0; }
.hero .hero-picture { z-index: 0; } .hero-image {   width: 100%;   height: 100%;
  object-fit: cover;   object-position: 58% 42%;   filter: contrast(1.12) saturate(.74) sepia(.18) brightness(.9);   will-change: transform;
} .hero-shade {   z-index: 1;   background:
    linear-gradient(90deg, rgba(8, 7, 6, .95) 0%, rgba(38, 13, 10, .68) 40%, rgba(8, 7, 6, .06) 76%),     linear-gradient(0deg, var(--paper) 0%, rgba(14, 13, 11, .5) 20%, transparent 48%),     linear-gradient(180deg, rgba(8, 7, 6, .62), transparent 24%); }
.hero-content {   position: relative;   z-index: 2;   padding-block: 96px clamp(52px, 9vh, 104px);
  max-width: 44em; } .hero-kicker { color: var(--accent); margin-bottom: 26px; } .hero h1 {
  font-size: var(--step-display);   line-height: 1.1;   letter-spacing: .01em;   text-shadow: 4px 4px 0 rgba(8, 7, 6, .85);
} .hero h1 em { font-style: normal; color: var(--accent); } .hero-description {   margin-top: 28px;
  max-width: 30em;   color: #e7dcc2;   font-size: var(--step-lead);   line-height: 1.72;
} .hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 24px; margin-top: 40px; } .hero-actions .button-ghost { backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); } 
/* Hero 右下的现场速览：档案母题的落点 */ .hero-panel {   position: absolute;   z-index: 3;
  right: var(--hero-bare);   bottom: clamp(52px, 9vh, 104px);   width: 276px;   padding: 20px 20px 18px;
  background: rgba(8, 7, 6, .76);   border: 1px solid var(--line-strong);   border-radius: var(--radius);   backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);   box-shadow: var(--shadow-md); } .hero-panel .panel-label { display: flex; justify-content: space-between; gap: 12px; }
.hero-panel .panel-name { margin-top: 12px; font-size: 21px; font-weight: 800; } .hero-panel .panel-sub { font-family: var(--font-mono); font-size: var(--step-micro); letter-spacing: .1em; color: var(--muted); } .hero-panel .panel-rows {   display: grid;
  grid-template-columns: 1fr 1fr;   gap: 10px;   margin-top: 16px;   padding-top: 14px;
  border-top: 1px dashed var(--line-strong); } .hero-panel .panel-rows > div { display: grid; gap: 2px; } .hero-panel dt { font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; color: var(--faint); }
.hero-panel dd { font-size: var(--step-sm); font-weight: 700; } .hero-panel .panel-note { margin-top: 14px; color: var(--muted); font-size: var(--step-micro); line-height: 1.65; }  /* 下滑提示：贴着 Hero 底边居中 */
.scroll-cue {   position: absolute;   z-index: 3;   left: 50%;
  bottom: 20px;   display: flex;   flex-direction: column;   align-items: center;
  gap: 8px;   transform: translateX(-50%);   font-family: var(--font-mono);   font-size: 11px;
  letter-spacing: .26em;   color: var(--muted); } .scroll-cue::after { content: ""; width: 1px; height: 30px; background: linear-gradient(var(--accent), transparent); }
 @media (prefers-reduced-motion: no-preference) {   .hero-content > * { animation: rise .9s var(--ease-out) both; }   .hero-content > :nth-child(2) { animation-delay: .1s; }
  .hero-content > :nth-child(3) { animation-delay: .2s; }   .hero-content > :nth-child(4) { animation-delay: .3s; }   .hero-panel { animation: rise 1s .45s var(--ease-out) both; }   .hero-image { animation: hero-zoom 16s var(--ease-out) both; }
  @keyframes hero-zoom { from { transform: scale(1.07); } to { transform: scale(1); } } }  /* ==========================================================================
   首页 · 快捷指南    ========================================================================== */ .quick-guide {   display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));   margin-top: 64px;   border: 1px solid var(--line);   border-radius: var(--radius);
  background: var(--surface);   overflow: hidden; } .quick-item {
  position: relative;   display: grid;   grid-template-columns: auto minmax(0, 1fr) auto;   align-items: center;
  gap: 16px;   padding: 24px 22px;   text-align: left;   border-right: 1px solid var(--line);
  transition: background var(--dur), color var(--dur); } .quick-item:last-child { border-right: 0; } .quick-guide .quick-symbol { border-color: var(--line-strong); }
.quick-guide .quick-text { display: grid; gap: 2px; min-width: 0; } .quick-guide .quick-text strong { font-size: 17px; font-weight: 800; } .quick-guide .quick-text small { color: var(--muted); font-size: var(--step-sm); } .quick-guide .quick-arrow { color: var(--faint); font-size: 16px; transition: color var(--dur), transform var(--dur) var(--ease-out); }
.quick-guide .quick-item:hover { background: var(--surface-2); } .quick-guide .quick-item:hover .quick-symbol { background: var(--accent); border-color: var(--accent); color: var(--black); } .quick-guide .quick-item:hover .quick-arrow { color: var(--accent); transform: translate(3px, -3px); } 
/* ==========================================================================    体验卡（首页 + 探索乐园）    ========================================================================== */ .experience-grid {
  display: grid;   grid-template-columns: repeat(3, minmax(0, 1fr));   gap: 30px; }
.home-grid { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); grid-template-rows: auto auto; gap: 26px; } .home-grid .is-lead { grid-row: span 2; } .experience-card { min-width: 0; display: grid; gap: 18px; } .card-image-wrap {
  position: relative;   height: 274px;   overflow: hidden;   border: 1px solid var(--line);
  border-radius: var(--radius);   background: var(--surface-2); } .card-image-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease-out), filter .45s; }
.home-grid .is-lead .card-image-wrap { height: 100%; min-height: 574px; } .experience-copy {   display: flex;   align-items: flex-start;
  justify-content: space-between;   gap: 18px; } .experience-copy > div { min-width: 0; }
.experience-copy h3 { font-size: var(--step-h3); } .experience-copy p:last-child { margin-top: 8px; color: var(--muted); font-size: var(--step-sm); max-width: 28em; } .experience-card .round-arrow { margin-top: 2px; } .experience-card:hover h2,
.experience-card:hover h3 { color: var(--accent); } .experience-card:hover .card-image-wrap img { transform: scale(1.05); filter: contrast(1.08) saturate(.92) sepia(.06); } .experience-card:hover .round-arrow {   background: var(--accent);
  border-color: var(--accent);   color: var(--black);   transform: rotate(45deg); }
 /* ==========================================================================    首页 · 标本档案（恐龙三卡）    ========================================================================== */
.specimen-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 26px; } .specimen-card {   position: relative;   display: flex;
  flex-direction: column;   background: var(--paper);   border: 1px solid var(--line);   border-radius: var(--radius);
  overflow: hidden;   transition: border-color var(--dur), transform var(--dur) var(--ease-out), box-shadow var(--dur); } .specimen-card:hover { border-color: var(--accent-line); transform: translateY(-5px); box-shadow: var(--shadow-md); }
.specimen-card .specimen-media { aspect-ratio: 4 / 3; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; } .specimen-body { display: flex; flex-direction: column; flex: 1; padding: 24px 24px 26px; } .specimen-body h3 { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; font-size: 25px; } .specimen-body h3 span { font-family: var(--font-mono); font-size: var(--step-micro); font-weight: 400; letter-spacing: .06em; color: var(--muted); }
.spec-table { display: grid; grid-template-columns: 1fr 1fr; margin-top: 20px; border-top: 1px solid var(--line); } .spec-table > div { padding: 11px 0; border-bottom: 1px solid var(--line); } .spec-table > div:nth-child(odd) { padding-right: 12px; border-right: 1px solid var(--line); } .spec-table > div:nth-child(even) { padding-left: 16px; }
.spec-table dt { font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; color: var(--faint); } .spec-table dd { margin-top: 2px; font-size: 15px; font-weight: 700; } .field-note { margin-top: 18px; font-size: var(--step-sm); color: var(--muted); line-height: 1.7; } .field-note::before {
  content: "FIELD NOTE · ";   font-family: var(--font-mono);   font-size: 11px;   letter-spacing: .1em;
  color: var(--accent); }  /* 地质年代表：三格按真实比例排，不用等宽卡片 */
.era-list { display: grid; grid-template-columns: 51fr 56fr 79fr; gap: 4px; margin-top: 8px; } .era { position: relative; padding-top: 30px; } .era::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 12px; border-radius: 2px; } .era:nth-child(1)::before { background: var(--border); }
.era:nth-child(2)::before { background: var(--accent); } .era:nth-child(3)::before { background: var(--red-line); } .era-name { font-size: 25px; font-weight: 800; } .era-time { margin-top: 2px; font-family: var(--font-mono); font-size: var(--step-micro); color: var(--accent); }
.era > p:last-child { margin-top: 12px; padding-right: 20px; color: var(--muted); font-size: var(--step-sm); } .era-scale {   display: flex;   justify-content: space-between;
  margin-top: 40px;   padding-top: 12px;   border-top: 1px dashed var(--line);   font-family: var(--font-mono);
  font-size: 11px;   letter-spacing: .08em;   color: var(--faint); }
 /* ==========================================================================    首页 · 推荐路线（条目式）    ========================================================================== */
.route-list { border-top: 1px solid var(--line); } .route-row {   display: grid;   grid-template-columns: 104px minmax(0, 1fr) auto 46px;
  align-items: center;   gap: 32px;   padding: 32px 8px;   border-bottom: 1px solid var(--line);
  transition: background var(--dur), padding var(--dur) var(--ease-out); } .route-row h3 { font-size: var(--step-h3); } .route-row p { margin-top: 8px; color: var(--muted); font-size: var(--step-sm); max-width: 34em; }
.route-row:hover { background: linear-gradient(90deg, var(--accent-soft), transparent 72%); padding-left: 20px; } .route-row:hover .route-num { color: var(--accent); } .route-row:hover .round-arrow {   background: var(--accent);
  border-color: var(--accent);   color: var(--black);   transform: rotate(45deg); }
.route-num {   font-family: var(--font-mono);   font-size: 44px;   font-weight: 700;
  line-height: 1;   color: transparent;   -webkit-text-stroke: 1px var(--accent);   transition: color var(--dur);
} .chips { display: flex; flex-wrap: wrap; gap: 8px; } .chips li {   padding: 4px 12px;
  border: 1px solid var(--line-strong);   border-radius: var(--pill);   font-family: var(--font-mono);   font-size: 11px;
  letter-spacing: .06em;   color: var(--muted);   white-space: nowrap; }
 /* ==========================================================================    首页 · 出行信息状态板    ========================================================================== */
.status-grid {   display: grid;   grid-template-columns: repeat(4, minmax(0, 1fr));   border: 1px solid var(--line);
  border-radius: var(--radius);   background: var(--surface);   overflow: hidden; }
.status-item { padding: 26px 24px 28px; border-right: 1px solid var(--line); } .status-item:last-child { border-right: 0; } .status-item dt { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: var(--step-sm); } .status-item dd { margin-top: 14px; display: grid; gap: 10px; justify-items: start; }
.status-item dd p { color: var(--faint); font-size: var(--step-micro); line-height: 1.65; } .status-chip {   display: inline-flex;   align-items: center;
  gap: 8px;   padding: 3px 11px;   border: 1px dashed var(--accent-line);   border-radius: var(--pill);
  font-family: var(--font-mono);   font-size: 11px;   letter-spacing: .08em;   color: var(--accent);
} .status-chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); } .status-chip.is-pending { border-color: rgba(200, 80, 74, .65); color: var(--red-ink); } .status-chip.is-pending::before { background: var(--red); }
.status-value { font-size: 17px; font-weight: 800; }  /* ==========================================================================    行动条（首页 / 探索乐园 / 亲子研学 / 关于）
   ========================================================================== */ .action-banner {   position: relative;   display: flex;
  align-items: center;   justify-content: space-between;   gap: 40px;   margin-block: 0 116px;
  padding: 48px 56px;   overflow: hidden;   background: linear-gradient(110deg, rgba(162, 48, 42, .26), transparent 58%), var(--surface);   border: 1px solid var(--line);
  border-radius: var(--radius); } .action-banner::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 6px; background: var(--hazard); } .action-banner h2 { font-size: clamp(26px, 2.6vw, 36px); }
.action-banner > div > p:not(.category) { margin-top: 12px; color: var(--muted); max-width: 34em; } .action-banner .button { flex-shrink: 0; }  /* ==========================================================================
   内页通用 · 版块拼装    ========================================================================== */ .split-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 88px; align-items: center; } .split-aside { display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.4fr); gap: 72px; align-items: start; }
.sticky-aside { position: sticky; top: calc(var(--header-height) + 32px); } .sticky-aside > p { margin-top: 20px; color: var(--muted); } .sticky-aside > .button { margin-top: 28px; } .sticky-aside .note { margin-top: 20px; }
 /* 小知识块：左右细线夹住的短档案 */ .fact-box {   margin-top: 32px;
  padding: 22px 24px;   background: var(--surface);   border: 1px solid var(--line);   border-left: 6px solid var(--accent);
  border-radius: var(--radius); } .fact-box .category { margin-bottom: 8px; } .fact-box p:last-child { margin-top: 10px; color: var(--muted); font-size: var(--step-sm); }
 /* 信息三列：靠细线分隔，不用卡片 */ .info-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); } .info-columns article { padding: 0 36px; border-left: 1px solid var(--line); }
.info-columns article:first-child { padding-left: 0; border-left: 0; } .info-columns h2 { font-size: 26px; } .info-columns article > p:not(.category) { margin-top: 14px; color: var(--muted); font-size: var(--step-sm); } 
/* 卡片列：三张独立卡片 */ .card-columns, .content-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; } .card-columns article {
  position: relative;   display: flex;   flex-direction: column;   padding: 32px 28px 34px;
  background: var(--surface);   border: 1px solid var(--line);   border-radius: var(--radius);   transition: border-color var(--dur), transform var(--dur) var(--ease-out);
} .card-columns article:hover { border-color: var(--accent-line); transform: translateY(-4px); } .card-columns h3 { font-size: var(--step-h4); } .card-columns article > p:not(.category) { margin-top: 14px; color: var(--muted); font-size: var(--step-sm); }
.card-columns .text-link { margin-top: auto; padding-top: 20px; }  /* ==========================================================================    探索乐园 · 交替特写
   ========================================================================== */ .feature-list { display: grid; gap: 120px; } .feature { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: center; gap: 72px; } .feature:nth-child(even) .feature-media { order: 2; }
.feature-media { aspect-ratio: 16 / 11; } .feature-copy h2 { font-size: clamp(30px, 3vw, 44px); } .feature-copy > p:not(.category) { margin-top: 20px; color: var(--muted); font-size: var(--step-lead); } .feature-copy .chips { margin-top: 26px; }
.feature-points { display: grid; gap: 10px; margin-top: 26px; } .feature-points li { position: relative; padding-left: 26px; color: var(--muted); font-size: var(--step-sm); } .feature-points li::before {   content: "";
  position: absolute;   left: 2px; top: .58em;   width: 11px; height: 6px;   border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);   transform: rotate(-45deg); } 
/* ==========================================================================    亲子研学    ========================================================================== */ .learning-inner { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: center; gap: 88px; }
.learning-image { position: relative; } .learning-image .media { aspect-ratio: 5 / 4; } .learning-stamp {   position: absolute;
  right: -26px;   bottom: 32px;   z-index: 5;   display: flex;
  flex-direction: column;   align-items: center;   justify-content: center;   width: 124px; height: 124px;
  background: var(--accent);   color: var(--black);   border: 5px solid var(--surface);   border-radius: 50%;
  font-family: var(--font-mono);   font-size: 15px;   font-weight: 800;   line-height: 1.2;
  letter-spacing: .06em;   text-align: center;   transform: rotate(-12deg);   box-shadow: var(--hard-shadow-sm);
} .learning-stamp span { margin-top: 6px; font-family: var(--font-sans); font-size: 11px; font-weight: 600; } .learning-content > p:not(.category) { margin-top: 24px; color: var(--muted); } .learning-topics { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 32px 0 36px; }
.learning-topics li {   display: flex;   align-items: center;   gap: 12px;
  padding: 14px 16px;   background: var(--paper);   border: 1px solid var(--line);   border-radius: var(--radius);
  font-weight: 700;   font-size: var(--step-sm); } .learning-topics .symbol { color: var(--accent); font-size: 16px; flex-shrink: 0; }
 /* ==========================================================================    游玩指南    ========================================================================== */
/* 出行示意：图片 + 动线速览，压在信息三列之前。    行高由内容自身决定，避免文字块把图片行拉得过高、照片被过度裁切。 */ .guide-visual {   display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);   grid-template-rows: auto auto;   align-items: start;   gap: 32px;
  padding-block: 64px 0; } .guide-visual .media { aspect-ratio: 16 / 9; } .guide-visual .fact-box { margin-top: 0; }
 .checklist {   margin: 40px 0 0;   padding: 22px 24px 18px;
  border: 1px solid var(--line);   border-radius: var(--radius);   background: var(--paper); }
/* 注意：legend 绝对不能用 float。    fieldset 里浮动 legend 会让其余子元素所在的内容盒缩成 min-content 宽，    清单文字会被压成每行一个汉字并竖排出巨大高度（Chrome 的已知怪癖）。    用 display:block + width:100% 取得同样的"标题占满一行"效果。 */
.checklist legend {   display: block;   width: 100%;   margin-bottom: 8px;
  font-family: var(--font-mono);   font-size: 11px;   letter-spacing: .16em;   text-transform: uppercase;
  color: var(--accent); } .checklist label {   display: flex;
  align-items: center;   gap: 12px;   min-height: 44px;   border-bottom: 1px dashed var(--line);
  cursor: pointer;   transition: color var(--dur-fast);   font-size: var(--step-sm); }
.checklist label:last-child { border-bottom: 0; } .checklist input { width: 18px; height: 18px; accent-color: var(--accent); flex-shrink: 0; } /* 文字项允许收缩但不换行，长文案在窄列里正常折行 */ .checklist label > span { display: block; flex: 1 1 auto; min-width: 0; }
.checklist input:checked + span { color: var(--faint); text-decoration: line-through; text-decoration-color: var(--accent); }  .faq-list { border-top: 1px solid var(--line); } .faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary {   display: flex;   align-items: center;   justify-content: space-between;
  gap: 24px;   min-height: 76px;   padding-block: 18px;   font-size: var(--step-h4);
  font-weight: 800;   cursor: pointer;   list-style: none;   transition: color var(--dur-fast);
} .faq-list summary::-webkit-details-marker { display: none; } .faq-list summary:hover { color: var(--accent); } .faq-list summary > span {
  position: relative;   flex-shrink: 0;   width: 32px; height: 32px;   border: 1px solid var(--line-strong);
  border-radius: 50%;   transition: background var(--dur), border-color var(--dur), transform var(--dur) var(--ease-out); } .faq-list summary > span::before,
.faq-list summary > span::after {   content: "";   position: absolute;   top: 50%; left: 50%;
  width: 12px; height: 1.5px;   background: currentColor;   transform: translate(-50%, -50%); }
.faq-list summary > span::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform var(--dur) var(--ease-out); } .faq-list details[open] summary > span { background: var(--accent); border-color: var(--accent); color: var(--black); } .faq-list details[open] summary > span::after { transform: translate(-50%, -50%) rotate(0); } .faq-list details > p { max-width: 42em; padding-bottom: 10px; color: var(--muted); }
.faq-list details > .text-link { margin: 0 0 20px; } .faq-list details > p:last-child { padding-bottom: 26px; } .faq-list details[open] > p { animation: rise .4s var(--ease-out) both; } 
/* ==========================================================================    关于起源岛    ========================================================================== */ .about-story { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; gap: 88px; }
.story-image {   width: 100%;   height: 440px;   object-fit: cover;
  border: 1px solid var(--line);   border-radius: var(--radius); } .story-copy h2 { font-size: var(--step-h2); }
.story-copy > p:not(.category) { margin-top: 22px; color: var(--muted); font-size: var(--step-lead); } .story-copy .button { margin-top: 34px; }  /* 徽章面板：logo + 旋转刻度环 */
.emblem-panel {   position: relative;   display: grid;   place-items: center;
  aspect-ratio: 1;   background: radial-gradient(circle at 50% 50%, rgba(162, 48, 42, .38), transparent 62%), var(--surface);   border: 1px solid var(--line);   border-radius: var(--radius);
  overflow: hidden; } .emblem-panel img { position: relative; z-index: 1; width: 56%; height: auto; filter: drop-shadow(0 20px 44px rgba(0, 0, 0, .65)); } .emblem-ring {
  position: absolute;   inset: 7%;   width: 86%; height: 86%;   color: var(--faint);
  font-family: var(--font-mono);   font-size: 13px;   letter-spacing: .3em; }
.emblem-ring text { fill: currentColor; } @media (prefers-reduced-motion: no-preference) {   .emblem-ring { animation: spin 70s linear infinite; } }
 /* 三栏价值：上边一条实线，靠竖线分栏 */ .values { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); } .value { padding: 42px 36px 8px 0; }
.value + .value { padding-left: 36px; border-left: 1px solid var(--line); } .value-num { font-family: var(--font-mono); font-size: var(--step-micro); letter-spacing: .14em; color: var(--accent); } .value h3 { margin-top: 18px; font-size: 30px; } .value p { margin-top: 12px; color: var(--muted); font-size: var(--step-sm); }
 /* 满幅引言带 */ .quote-band {   position: relative;
  isolation: isolate;   display: grid;   place-items: center;   min-height: 460px;
  overflow: hidden;   text-align: center;   border-block: 1px solid var(--line); }
.quote-band .quote-media, .quote-band img { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; object-fit: cover; } .quote-band .quote-media { z-index: -2; } .quote-band::after {
  content: "";   position: absolute;   inset: 0;   z-index: -1;
  background: radial-gradient(ellipse at center, rgba(8, 7, 6, .58), rgba(8, 7, 6, .93)); } .quote-band blockquote { position: relative; z-index: 1; margin: 0; padding: 64px 24px; } .quote-band blockquote p { font-size: clamp(28px, 4.2vw, 56px); font-weight: 800; line-height: 1.32; text-shadow: 3px 3px 0 rgba(8, 7, 6, .9); }
.quote-band cite {   display: block;   margin-top: 24px;   font-family: var(--font-mono);
  font-style: normal;   font-size: var(--step-micro);   letter-spacing: .2em;   color: var(--accent);
}  /* ==========================================================================    推荐路线
   ========================================================================== */ .itinerary { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr); gap: 80px; align-items: start; } .itinerary-intro { position: sticky; top: calc(var(--header-height) + 32px); } .itinerary-intro .route-image {
  width: 100%;   height: 280px;   object-fit: cover;   border: 1px solid var(--line);
  border-radius: var(--radius); } .itinerary-intro > p { margin-top: 24px; color: var(--muted); font-size: var(--step-lead); } .itinerary-intro .text-link { margin-top: 8px; }
.itinerary-main { min-width: 0; }  .route-tabs {   display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));   gap: 6px;   padding: 6px;   margin-bottom: 40px;
  background: var(--surface);   border: 1px solid var(--line);   border-radius: var(--radius); }
.route-tab {   display: flex;   flex-direction: column;   align-items: flex-start;
  gap: 2px;   min-height: 64px;   padding: 12px 20px;   border-radius: 2px;
  color: var(--muted);   text-align: left;   font-size: 17px;   font-weight: 800;
  transition: background var(--dur), color var(--dur), box-shadow var(--dur); } .route-tab small { font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: .14em; opacity: .8; } .route-tab:hover { color: var(--ink); background: var(--surface-2); }
.route-tab.is-selected { background: var(--accent); color: var(--black); box-shadow: var(--hard-shadow-sm); } .route-tab.is-selected small { opacity: 1; }  .route-panel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 64px; align-items: start; }
.route-panel:focus-visible { outline-offset: 12px; } .route-visual { position: sticky; top: calc(var(--header-height) + 32px); } .route-visual .media { aspect-ratio: 4 / 3; } .route-meta { display: grid; grid-template-columns: 1fr 1fr; margin-top: 16px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.route-meta > div { padding: 14px 18px; } .route-meta > div + div { border-left: 1px solid var(--line); } .route-meta dt { font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; color: var(--faint); } .route-meta dd { margin-top: 2px; font-weight: 700; font-size: var(--step-sm); }
.route-detail > p { margin-top: 14px; color: var(--muted); font-size: var(--step-lead); } .route-detail .card-title { font-size: clamp(28px, 2.8vw, 40px); }  /* 步行时间轴：滚动时逐站点亮 */
.route-stops { position: relative; margin-top: 40px; } .route-stops::before {   content: "";   position: absolute;
  top: 26px; bottom: 26px; left: 23px;   width: 1px;   background: repeating-linear-gradient(180deg, var(--border) 0 6px, transparent 6px 12px); }
.route-stops::after {   content: "";   position: absolute;   top: 26px; left: 23px;
  width: 1px;   height: 0;   background: linear-gradient(var(--accent), var(--accent-hover));   transition: height .6s var(--ease-out);
} .route-stops[data-progress="1"]::after { height: calc(33% - 18px); } .route-stops[data-progress="2"]::after { height: calc(66% - 18px); } .route-stops[data-progress="3"]::after { height: calc(100% - 52px); }
.route-stop { position: relative; display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 24px; padding-bottom: 36px; } .route-stop:last-child { padding-bottom: 0; } .route-index {   position: relative;
  z-index: 1;   display: grid;   place-items: center;   width: 48px; height: 48px;
  background: var(--paper);   border: 1px solid var(--line-strong);   border-radius: 50%;   font-family: var(--font-mono);
  font-size: var(--step-sm);   font-weight: 700;   color: var(--muted);   transition: background var(--dur), border-color var(--dur), color var(--dur), transform var(--dur) var(--ease-out);
} .route-stop.is-current .route-index { background: var(--accent); border-color: var(--accent); color: var(--black); transform: scale(1.06); } .route-stop h3 { margin-top: 2px; font-size: 21px; } .route-stop p { margin-top: 8px; color: var(--muted); font-size: var(--step-sm); }
.route-time { font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; color: var(--faint); }  @media (prefers-reduced-motion: no-preference) {   .route-stop { animation: rise .5s var(--ease-out) both; }
  .route-stop:nth-child(2) { animation-delay: .07s; }   .route-stop:nth-child(3) { animation-delay: .14s; } } 
/* ==========================================================================    404    ========================================================================== */ .not-found {
  display: grid;   place-items: center;   min-height: calc(100svh - var(--header-height) - 200px);   padding-block: 96px;
  text-align: center; } .not-found-code {   font-family: var(--font-mono);
  font-size: clamp(110px, 22vw, 260px);   font-weight: 800;   line-height: .86;   color: transparent;
  -webkit-text-stroke: 2px var(--accent); } .not-found-crumbs { justify-content: center; margin-bottom: 8px; } .not-found-code { margin-bottom: 4px; }
.not-found .eyebrow { justify-content: center; margin-bottom: 18px; } .not-found h1 { margin-top: 0; font-size: clamp(30px, 3.8vw, 50px); } .not-found p { margin-top: 16px; color: var(--muted); max-width: 34em; } .not-found-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-top: 36px; }
 /* ==========================================================================    响应式    ========================================================================== */
@media (max-width: 1240px) {   .home-grid { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); }   .home-grid .is-lead .card-image-wrap { min-height: 500px; }   .split-2 { gap: 64px; }
  .learning-inner,   .about-story { gap: 64px; }   .split-aside { gap: 56px; }   .itinerary { gap: 56px; }
}  @media (max-width: 1023px) {   .hero { height: auto; min-height: 700px; flex-direction: column; align-items: stretch; }
  .hero-content { padding-block: 76px 132px; max-width: none; }   .hero-panel { position: static; width: min(420px, 100%); margin-top: 40px; }   .scroll-cue { display: none; }   .quick-guide { grid-template-columns: 1fr 1fr; }
  .quick-item:nth-child(2) { border-right: 0; }   .quick-item:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }   .experience-grid { grid-template-columns: 1fr 1fr; gap: 28px; }   .home-grid { grid-template-columns: 1fr 1fr; }
  .home-grid .is-lead { grid-column: 1 / -1; grid-row: auto; }   .home-grid .is-lead .card-image-wrap { min-height: 0; height: 360px; }   .specimen-grid { grid-template-columns: 1fr 1fr; }   .specimen-card:last-child { grid-column: 1 / -1; flex-direction: row; }
  .specimen-card:last-child .specimen-media { width: 50%; aspect-ratio: auto; border-bottom: 0; border-right: 1px solid var(--line); }   .route-row { grid-template-columns: 78px minmax(0, 1fr) 46px; gap: 20px; }   .route-row .chips { grid-column: 2; grid-row: 2; margin-top: 4px; }   .route-row .round-arrow { grid-column: 3; grid-row: 1 / 3; }
  .route-num { font-size: 36px; }   .status-grid { grid-template-columns: 1fr 1fr; }   .status-item { border-bottom: 1px solid var(--line); }   .status-item:nth-child(2n) { border-right: 0; }
  .status-item:nth-child(n + 3) { border-bottom: 0; }   .action-banner { flex-direction: column; align-items: flex-start; gap: 28px; padding: 40px; margin-bottom: 88px; }   .action-banner .button { flex-shrink: 1; }   .feature-list { gap: 88px; }
  .feature { gap: 44px; }   .feature:nth-child(even) .feature-media { order: 0; }   .split-2 { grid-template-columns: 1fr; gap: 48px; }   .split-aside { grid-template-columns: 1fr; gap: 48px; }
  .sticky-aside,   .itinerary-intro { position: static; }   .info-columns { grid-template-columns: 1fr; }   .info-columns article { padding: 28px 0; border-left: 0; border-top: 1px solid var(--line); }
  .info-columns article:first-child { padding-top: 0; border-top: 0; }   .card-columns { grid-template-columns: 1fr 1fr; }   .learning-inner { grid-template-columns: 1fr 1fr; gap: 48px; }   .learning-stamp { right: -12px; width: 104px; height: 104px; font-size: 13px; }
  .learning-topics { grid-template-columns: 1fr; }   .itinerary { grid-template-columns: 1fr; gap: 40px; }   .itinerary-intro .route-image { height: 320px; }   .route-panel { grid-template-columns: 1fr; gap: 40px; }
  .route-visual { position: static; }   .about-story { grid-template-columns: 1fr 1fr; gap: 48px; }   .story-image { height: 380px; } }
 @media (max-width: 767px) {   .hero { min-height: 620px; }   .hero-image { object-position: 66% 40%; }
  .hero-shade {     background:       linear-gradient(180deg, rgba(8, 7, 6, .8) 0%, rgba(38, 13, 10, .5) 38%, rgba(8, 7, 6, .9) 100%),       linear-gradient(90deg, rgba(8, 7, 6, .82), rgba(8, 7, 6, .3));
  }   .hero-content { padding-block: 64px 56px; }   .hero-kicker { margin-bottom: 18px; }   .hero h1 { text-shadow: 3px 3px 0 rgba(8, 7, 6, .9); }
  .hero-description { font-size: var(--step-body); margin-top: 20px; }   .hero-description br { display: none; }   .hero-actions { margin-top: 30px; gap: 14px 18px; }   .hero-panel { margin-top: 32px; padding: 18px; }
   .quick-guide { grid-template-columns: 1fr; margin-top: 44px; }   .quick-item { border-right: 0; border-bottom: 1px solid var(--line); padding: 20px; }   .quick-item:last-child { border-bottom: 0; }
   .experience-grid { grid-template-columns: 1fr; gap: 32px; }   .home-grid { grid-template-columns: 1fr; }   .home-grid .is-lead .card-image-wrap,
  .card-image-wrap { height: auto; aspect-ratio: 16 / 10; min-height: 0; }   .experience-copy { gap: 14px; }   .experience-card .round-arrow { width: 42px; height: 42px; } 
  .specimen-grid { grid-template-columns: 1fr; }   .specimen-card:last-child { grid-column: auto; flex-direction: column; }   .specimen-card:last-child .specimen-media { width: auto; aspect-ratio: 4 / 3; border-right: 0; border-bottom: 1px solid var(--line); }   .era-list { grid-template-columns: 1fr; gap: 28px; }
  .era { padding-top: 0; padding-left: 26px; }   .era::before { top: 4px; bottom: 4px; right: auto; width: 8px; height: auto; }   .era > p:last-child { padding-right: 0; }   .era-scale { display: none; }
   .route-row { grid-template-columns: 46px minmax(0, 1fr) 42px; gap: 14px; padding: 24px 4px; }   .route-row:hover { padding-left: 4px; }   .route-num { font-size: 28px; }
  .route-row .round-arrow { width: 42px; height: 42px; }   .route-row h3 { font-size: 19px; }    .status-grid { grid-template-columns: 1fr; }
  .status-item { border-right: 0; border-bottom: 1px solid var(--line); padding: 22px 20px; }   .status-item:last-child { border-bottom: 0; }   .status-item dd { grid-template-columns: 1fr; }   .action-banner { padding: 30px 24px 30px 28px; margin-bottom: 66px; }
  .action-banner h2 { font-size: 24px; }    .feature-list { gap: 64px; }   .feature { grid-template-columns: 1fr; gap: 28px; }
  .feature-copy > p:not(.category) { font-size: var(--step-body); }   .guide-visual { grid-template-columns: 1fr; gap: 24px; padding-block: 42px 0; }    .card-columns { grid-template-columns: 1fr; gap: 16px; }
  .card-columns article { padding: 26px 22px; }    .learning-inner { grid-template-columns: 1fr; gap: 52px; }   .learning-stamp { right: 12px; bottom: -28px; width: 96px; height: 96px; font-size: 12px; }
   .about-story { grid-template-columns: 1fr; gap: 40px; }   .story-image { height: 260px; }   .values { grid-template-columns: 1fr; }
  .value,   .value + .value { padding: 28px 0; border-left: 0; }   .value + .value { border-top: 1px solid var(--line); }   .value h3 { font-size: 25px; }
  .quote-band { min-height: 340px; }   .quote-band blockquote { padding: 52px 20px; }    .itinerary-intro .route-image { height: 220px; }
  .route-tabs { grid-template-columns: 1fr; margin-bottom: 30px; }   .route-tab { flex-direction: row; align-items: center; justify-content: space-between; min-height: 54px; padding: 10px 16px; font-size: var(--step-body); }   .route-panel { gap: 32px; }   .route-stops { margin-top: 32px; }
  .route-stop { grid-template-columns: 44px minmax(0, 1fr); gap: 18px; }   .route-index { width: 44px; height: 44px; }   .route-stops::before { left: 21px; }   .route-stops::after { left: 21px; }
   .faq-list summary { font-size: var(--step-body); min-height: 66px; }   .checklist { padding: 18px 18px 12px; }   .not-found { padding-block: 72px; }
  .not-found-actions { flex-direction: column; align-items: stretch; } }  /* ==========================================================================
   打印：游玩指南做成可带走的清单    ========================================================================== */ @media print {   :root { --paper: #fff; --surface: #fff; --surface-2: #fff; --ink: #111; --muted: #444; --faint: #666; --line: #ccc; --border: #999; --accent: #7a5c12; }
  body::before,   .site-header,   .site-footer,   .scroll-cue,
  .info-dialog,   .action-banner .button,   .route-tabs { display: none !important; }   .hero { height: auto; min-height: 0; color: #111; }
  .hero-shade,   .hero .hero-picture { display: none; }   .section-space { padding-block: 24px; }   a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 11px; }
  .faq-list details { break-inside: avoid; }   .faq-list details > p { display: block !important; } }