/* ===================================================================
   國立故宮博物院 × 臺師大國文學系 ｜ 故宮校園微型展《四藝裡尋她》
   PALACE MUSEUM DESIGN SYSTEM & STYLESHEET
   - 強化中文排版斷行規則 (Strict CJK Punctuation & Line Breaking)
   - 解決任何螢幕寬度下的跑版與溢出 (Anti-Overflow & Dynamic Fluid Layout)
   - 嚴禁圓角膠囊 (Zero Border Radius & Strict Palace Heritage Aesthetics)
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;700;900&family=Noto+Serif+TC:wght@400;600;700;900&family=Noto+Sans+TC:wght@300;400;500;700&display=swap');

/* --- CSS Root Variables: 故宮經典雅韻色系 --- */
:root {
  --c-ochre: #b85d43;             /* 展覽主視覺赭石陶色 */
  --c-ochre-dark: #8a3822;        /* 深赭色 */
  --c-ochre-light: #d88069;       /* 淺赭色 */
  --c-vermilion: #9b281f;         /* 宮牆朱砂紅 / 印章紅 */
  --c-vermilion-dark: #781c15;    /* 曜紅 */
  --c-vermilion-light: #c04236;   /* 絳紅 */
  
  --c-gold: #c2963d;              /* 故宮泥金 / 琉璃金 */
  --c-gold-light: #dfba68;        /* 亮金 */
  --c-gold-dark: #8c6820;         /* 古銅金 */
  
  --c-celadon: #4a746d;           /* 汝窯天青 / 翡翠青 */
  --c-celadon-light: #82a8a2;     /* 淺青瓷 */
  --c-celadon-dark: #32534e;      /* 幽竹深青 */
  
  --c-ji-blue: #274558;           /* 霽藍 / 景泰藍 */
  --c-ji-blue-light: #476a82;     /* 淺霽藍 */
  
  --c-ink-900: #1a1715;           /* 故宮玄墨 */
  --c-ink-800: #292421;           /* 濃墨 */
  --c-ink-700: #3f3934;           /* 焦墨 */
  --c-ink-600: #5c534c;           /* 重墨 */
  --c-ink-500: #736961;           /* 中墨 */
  --c-ink-400: #8a7f75;           /* 淡墨 */
  --c-ink-200: #b5aaa0;           /* 煙灰 */
  
  --c-paper-100: #fcf9f2;         /* 宣紙玉白 */
  --c-paper-200: #f5eedf;         /* 熟宣米黃 */
  --c-paper-300: #ebdcc8;         /* 仿古絹本黃 */
  --c-paper-400: #dcbe9d;         /* 古策泥金紙 */
  --c-paper-500: #cca984;         /* 封皮紙 */

  --font-serif: 'Noto Serif TC', 'Songti TC', 'Source Han Serif TC', serif;
  --font-sans: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', sans-serif;
  --font-en-classic: 'Cinzel', serif;

  --shadow-paper: 0 4px 20px rgba(41, 36, 33, 0.08);
  --shadow-deep: 0 10px 35px rgba(26, 23, 21, 0.16);
  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- 全域重置與基礎排版 (嚴格禁用圓角膠囊，防止任何橫向溢出與換行怪異) --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--c-paper-200);
  color: var(--c-ink-900);
  font-family: var(--font-serif);
  line-height: 1.85;
  letter-spacing: 0.03em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  width: 100%;
}

body {
  background-color: var(--c-paper-200);
  background-image: 
    radial-gradient(rgba(184, 93, 67, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(252, 249, 242, 0.8), rgba(245, 238, 223, 0.95));
  background-size: 24px 24px, 100% 100%;
  color: var(--c-ink-900);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  width: 100%;
  word-break: normal;
  overflow-wrap: break-word;
  line-break: strict;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    45deg,
    rgba(220, 190, 157, 0.03) 0,
    rgba(220, 190, 157, 0.03) 1px,
    transparent 0,
    transparent 50%
  );
  background-size: 8px 8px;
  z-index: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-smooth);
}

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

/* 標題中文字符平衡換行與避頭尾 */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-ink-900);
  line-height: 1.35;
  text-wrap: balance;
  word-break: normal;
  overflow-wrap: break-word;
}

p, span, div, li, td, th {
  word-break: normal;
  overflow-wrap: break-word;
  line-break: strict;
}

p {
  text-wrap: pretty;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 24px);
}

/* --- 古典方框與回紋四角 --- */
.palace-frame {
  position: relative;
  background: var(--c-paper-100);
  border: 1px solid var(--c-paper-400);
  padding: clamp(20px, 4vw, 36px);
  box-shadow: var(--shadow-paper);
}

.palace-frame::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 6px;
  width: 14px;
  height: 14px;
  border-top: 2px solid var(--c-gold);
  border-left: 2px solid var(--c-gold);
  pointer-events: none;
}

.palace-frame::after {
  content: "";
  position: absolute;
  bottom: 6px;
  right: 6px;
  width: 14px;
  height: 14px;
  border-bottom: 2px solid var(--c-gold);
  border-right: 2px solid var(--c-gold);
  pointer-events: none;
}

.palace-frame-corner-tr {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 14px;
  height: 14px;
  border-top: 2px solid var(--c-gold);
  border-right: 2px solid var(--c-gold);
  pointer-events: none;
}

.palace-frame-corner-bl {
  position: absolute;
  bottom: 6px;
  left: 6px;
  width: 14px;
  height: 14px;
  border-bottom: 2px solid var(--c-gold);
  border-left: 2px solid var(--c-gold);
  pointer-events: none;
}

/* 印章樣式 (絕對不被擠壓折字) */
.stamp-seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 900;
  text-align: center;
  user-select: none;
  border: 2px solid var(--c-vermilion);
  color: var(--c-vermilion);
  background-color: transparent;
  padding: 3px 8px;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  line-height: 1.2;
  white-space: nowrap;
  word-break: keep-all;
  flex-shrink: 0;
}

.stamp-seal.stamp-filled {
  background-color: var(--c-vermilion);
  color: var(--c-paper-100);
  border: 2px solid var(--c-vermilion-dark);
}

.stamp-seal.stamp-gold {
  border-color: var(--c-gold-dark);
  color: var(--c-gold-dark);
  background-color: rgba(223, 186, 104, 0.1);
}

.stamp-seal.stamp-celadon {
  border-color: var(--c-celadon);
  color: var(--c-celadon);
}

/* 標題裝飾組件 */
.section-header {
  text-align: center;
  margin-bottom: clamp(32px, 5vw, 48px);
  position: relative;
}

.section-subtitle-en {
  font-family: var(--font-en-classic);
  font-size: clamp(0.75rem, 1.8vw, 0.9rem);
  letter-spacing: 0.25em;
  color: var(--c-ochre);
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
  word-break: keep-all;
}

.section-title {
  font-size: clamp(1.5rem, 3.8vw, 2.3rem);
  color: var(--c-ink-900);
  position: relative;
  display: inline-block;
  padding: 0 clamp(20px, 4vw, 44px);
  text-wrap: balance;
  line-height: 1.35;
}

.section-title::before,
.section-title::after {
  content: "❖";
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-gold);
  font-size: 0.9rem;
}

.section-title::before { left: 4px; }
.section-title::after { right: 4px; }

.section-divider {
  width: 120px;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--c-gold), transparent);
  margin: 14px auto 0;
}

.section-desc {
  max-width: 680px;
  margin: 14px auto 0;
  color: var(--c-ink-700);
  font-size: clamp(0.92rem, 1.8vw, 1.05rem);
  line-height: 1.9;
  text-wrap: pretty;
}

/* ===================================================================
   TOP HEADER 頂欄導覽列 (全裝置自適應防擠壓排版)
   =================================================================== */
.top-announcement {
  background-color: var(--c-ochre-dark);
  color: var(--c-paper-100);
  font-size: clamp(0.78rem, 1.6vw, 0.85rem);
  padding: 8px 16px;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--c-gold);
  line-height: 1.6;
}

.top-announcement .container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px 14px;
  text-align: center;
}

.top-announcement strong {
  color: var(--c-gold-light);
  font-weight: 600;
}

.top-announcement a {
  color: var(--c-paper-100);
  text-decoration: underline;
  white-space: nowrap;
  word-break: keep-all;
  display: inline-flex;
  align-items: center;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(245, 238, 223, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--c-gold);
  box-shadow: 0 4px 15px rgba(41, 36, 33, 0.06);
  transition: var(--transition-smooth);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: clamp(10px, 2vw, 20px);
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-emblem {
  width: 40px;
  height: 40px;
  background-color: var(--c-vermilion);
  color: var(--c-paper-100);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  font-weight: 900;
  line-height: 1.1;
  border: 1px solid var(--c-gold);
  box-shadow: inset 0 0 0 2px var(--c-vermilion-dark);
  flex-shrink: 0;
}

.brand-titles {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-sup {
  font-size: clamp(0.68rem, 1.4vw, 0.74rem);
  color: var(--c-ochre-dark);
  letter-spacing: 0.06em;
  font-weight: 600;
  white-space: nowrap;
  word-break: keep-all;
}

.brand-main {
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  font-weight: 900;
  color: var(--c-ink-900);
  letter-spacing: 0.1em;
  display: flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
}

.brand-sub {
  font-size: clamp(0.72rem, 1.5vw, 0.8rem);
  color: var(--c-vermilion);
  font-weight: 700;
  border-left: 1px solid var(--c-paper-400);
  padding-left: 8px;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.2vw, 16px);
  min-width: 0;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: clamp(4px, 0.8vw, 10px);
  margin: 0;
  padding: 0;
  align-items: center;
  flex-shrink: 1;
}

.nav-item a {
  font-size: clamp(0.78rem, 0.95vw, 0.86rem);
  font-weight: 600;
  color: var(--c-ink-800);
  padding: 6px 2px;
  position: relative;
  letter-spacing: 0.03em;
  white-space: nowrap;
  word-break: keep-all;
}

/* 頂欄右側行動按鈕組 (3D 展廳與抽籤詩) */
.nav-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  white-space: nowrap;
}

.nav-actions .btn-palace {
  padding: 6px 11px;
  font-size: 0.8rem;
  line-height: 1.2;
  letter-spacing: 0.04em;
  box-shadow: 0 2px 6px rgba(26, 23, 21, 0.08);
  height: 34px;
}

.nav-item a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--c-vermilion);
  transition: width 0.25s ease;
}

.nav-item a:hover {
  color: var(--c-vermilion);
}

.nav-item a:hover::after {
  width: 100%;
}

.nav-item.active a {
  color: var(--c-vermilion);
  font-weight: 700;
}

.nav-item.active a::after {
  width: 100%;
}

.btn-palace {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  font-family: var(--font-serif);
  font-size: clamp(0.85rem, 1.5vw, 0.92rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition-smooth);
  text-align: center;
  user-select: none;
  white-space: nowrap;
  word-break: keep-all;
  flex-shrink: 0;
}

.btn-palace-primary {
  background-color: var(--c-ochre);
  color: var(--c-paper-100);
  border: 1px solid var(--c-ochre-dark);
}

.btn-palace-primary:hover {
  background-color: var(--c-ochre-dark);
  border-color: var(--c-gold);
}

.btn-palace-vermilion {
  background-color: var(--c-vermilion);
  color: var(--c-paper-100);
  border: 1px solid var(--c-vermilion-dark);
}

.btn-palace-vermilion:hover {
  background-color: var(--c-vermilion-dark);
}

.btn-palace-gold {
  background-color: var(--c-gold);
  color: var(--c-ink-900);
  border: 1px solid var(--c-gold-dark);
}

.btn-palace-gold:hover {
  background-color: var(--c-gold-light);
}

.btn-palace-outline {
  background-color: transparent;
  color: var(--c-ink-900);
  border: 1px solid var(--c-ink-800);
}

.btn-palace-outline:hover {
  background-color: var(--c-ink-900);
  color: var(--c-paper-100);
}

.btn-palace-outline-gold {
  background-color: rgba(255, 255, 255, 0.6);
  color: var(--c-ochre-dark);
  border: 1px solid var(--c-gold);
}

.btn-palace-outline-gold:hover {
  background-color: var(--c-ochre-dark);
  color: var(--c-paper-100);
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--c-paper-400);
  padding: 6px 12px;
  cursor: pointer;
  color: var(--c-ink-900);
  font-size: 1.3rem;
  flex-shrink: 0;
  line-height: 1;
}

/* ===================================================================
   HERO SECTION 首頁大視覺區
   =================================================================== */
.hero-section {
  position: relative;
  padding: clamp(36px, 6vw, 64px) 0;
  background: linear-gradient(180deg, rgba(235, 220, 200, 0.4) 0%, rgba(245, 238, 223, 0.9) 100%);
  border-bottom: 1px solid var(--c-paper-400);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
  animation: heroTextSlide 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes heroTextSlide {
  from { opacity: 0; transform: translateY(35px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-badge-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.hero-stamp-tag {
  border: 1px solid var(--c-ochre);
  padding: 3px 10px;
  font-size: clamp(0.75rem, 1.5vw, 0.82rem);
  font-weight: 700;
  color: var(--c-ochre-dark);
  background-color: rgba(184, 93, 67, 0.08);
  letter-spacing: 0.06em;
  white-space: nowrap;
  word-break: keep-all;
}

.hero-main-title {
  font-size: clamp(2.2rem, 5.2vw, 3.4rem);
  line-height: 1.15;
  color: var(--c-ochre-dark);
  font-weight: 900;
  letter-spacing: 0.12em;
  margin-bottom: 4px;
  text-wrap: balance;
  word-break: keep-all;
}

.hero-main-title span {
  color: var(--c-vermilion);
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  color: var(--c-ink-800);
  font-weight: 600;
  letter-spacing: 0.06em;
  padding-left: 12px;
  border-left: 3px solid var(--c-gold);
  text-wrap: balance;
}

.hero-lead-text {
  font-size: clamp(0.92rem, 1.8vw, 1.05rem);
  color: var(--c-ink-700);
  line-height: 1.95;
  background-color: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--c-paper-300);
  padding: clamp(14px, 2.5vw, 20px);
  text-align: justify;
  text-justify: inter-ideograph;
}

.hero-meta-box {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px 18px;
  background-color: var(--c-paper-100);
  border: 1px solid var(--c-gold);
  padding: 14px 18px;
  box-shadow: var(--shadow-paper);
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.meta-label {
  font-size: 0.78rem;
  color: var(--c-ink-500);
  font-family: var(--font-sans);
  word-break: keep-all;
}

.meta-val {
  font-size: clamp(0.88rem, 1.8vw, 0.95rem);
  font-weight: 700;
  color: var(--c-ink-900);
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.hero-visual-wrapper {
  position: relative;
  min-width: 0;
  animation: heroVisualSlide 1.1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes heroVisualSlide {
  from { opacity: 0; transform: translateX(40px) scale(0.96); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

.hero-visual-frame {
  position: relative;
  background-color: var(--c-paper-100);
  padding: 10px;
  border: 1px solid var(--c-gold-dark);
  box-shadow: var(--shadow-deep);
}

.hero-visual-frame::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px dashed var(--c-gold);
  pointer-events: none;
  z-index: 2;
}

.hero-image-box {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-paper-400);
  cursor: zoom-in;
  background: #fff;
}

.hero-image-box img {
  width: 100%;
  height: auto;
  transition: transform 0.4s ease;
}

.hero-image-box:hover img {
  transform: scale(1.02);
}

.hero-image-caption {
  position: absolute;
  bottom: 0;
  inset-inline: 0;
  background: linear-gradient(0deg, rgba(26, 23, 21, 0.88) 0%, transparent 100%);
  color: var(--c-paper-100);
  padding: 20px 14px 8px;
  font-size: 0.82rem;
  text-align: center;
  z-index: 3;
}

.hero-floating-standee {
  position: absolute;
  bottom: -16px;
  right: -12px;
  width: clamp(80px, 15vw, 110px);
  background: var(--c-paper-100);
  border: 1px solid var(--c-gold);
  padding: 4px;
  box-shadow: var(--shadow-deep);
  z-index: 10;
  text-align: center;
  animation: standeeFloat 4s ease-in-out infinite alternate;
  cursor: zoom-in;
}

@keyframes standeeFloat {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

.standee-name {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--c-vermilion);
  margin-top: 2px;
  white-space: nowrap;
}

/* ===================================================================
   盛大開幕典禮儀式區塊 (GRAND PALACE INAUGURAL CEREMONY SECTION)
   =================================================================== */
.inauguration-section {
  position: relative;
  padding: clamp(50px, 7vw, 90px) 0;
  background: radial-gradient(circle at 50% 30%, #2b211c 0%, #171311 100%);
  color: var(--c-paper-100);
  border-top: 4px solid var(--c-gold);
  border-bottom: 4px solid var(--c-gold);
  overflow: hidden;
}

.inauguration-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(rgba(194, 150, 61, 0.12) 1.5px, transparent 1.5px),
    linear-gradient(90deg, rgba(138, 56, 34, 0.15) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.ceremony-badge-bar {
  text-align: center;
  margin-bottom: 20px;
}

.ceremony-emblem-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border: 1px solid var(--c-gold);
  background: rgba(194, 150, 61, 0.12);
  color: var(--c-gold-light);
  font-size: clamp(0.78rem, 1.8vw, 0.9rem);
  letter-spacing: 0.15em;
  font-weight: 700;
  white-space: nowrap;
}

.ceremony-stage {
  position: relative;
  max-width: 1040px;
  margin: 0 auto;
  min-height: clamp(400px, 50vw, 460px);
  background: #1f1b18;
  border: 2px solid var(--c-gold);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.8), inset 0 0 0 1px rgba(223, 186, 104, 0.3);
  overflow: hidden;
  perspective: 1200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gate-door {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50.1%;
  background: linear-gradient(135deg, #872e1d 0%, #561b11 100%);
  z-index: 30;
  transition: transform 1.6s cubic-bezier(0.77, 0, 0.175, 1);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.7);
}

.gate-left {
  left: 0;
  border-right: 3px solid var(--c-gold);
  transform-origin: left center;
}

.gate-right {
  right: 0;
  border-left: 3px solid var(--c-gold);
  transform-origin: right center;
}

.door-knocker {
  width: clamp(52px, 9vw, 80px);
  height: clamp(52px, 9vw, 80px);
  border: 3px solid var(--c-gold-light);
  background: radial-gradient(circle, #5c2013 0%, #300e08 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 8px 25px rgba(0,0,0,0.6);
}

.door-knocker-ring {
  width: clamp(28px, 5vw, 46px);
  height: clamp(28px, 5vw, 46px);
  border: 3px solid var(--c-gold);
  transform: rotate(45deg);
}

.door-seal-vertical {
  margin-top: 12px;
  color: var(--c-gold-light);
  font-size: clamp(0.75rem, 1.6vw, 0.95rem);
  font-weight: 900;
  writing-mode: vertical-rl;
  letter-spacing: 0.28em;
  padding: 6px 4px;
  border: 1px solid rgba(223, 186, 104, 0.4);
  background: rgba(0,0,0,0.3);
  white-space: nowrap;
}

.ceremony-stage.is-opened .gate-left {
  transform: rotateY(-96deg);
}

.ceremony-stage.is-opened .gate-right {
  transform: rotateY(96deg);
}

.ceremony-inner-hall {
  position: relative;
  z-index: 10;
  padding: clamp(28px, 5vw, 56px) clamp(16px, 3.5vw, 36px);
  text-align: center;
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 1.1s cubic-bezier(0.16, 1, 0.3, 1) 0.6s,
              transform 1.1s cubic-bezier(0.16, 1, 0.3, 1) 0.6s;
  width: 100%;
}

.ceremony-stage.is-opened .ceremony-inner-hall {
  opacity: 1;
  transform: scale(1);
}

.four-arts-lights {
  display: flex;
  justify-content: center;
  gap: clamp(6px, 1.8vw, 16px);
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.art-light-node {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid var(--c-paper-400);
  background: rgba(255, 255, 255, 0.05);
  color: var(--c-paper-300);
  font-size: clamp(0.75rem, 1.6vw, 0.88rem);
  letter-spacing: 0.06em;
  white-space: nowrap;
  word-break: keep-all;
  transition: all 0.6s ease;
  opacity: 0.4;
  transform: translateY(10px);
}

.ceremony-stage.is-opened .art-light-node:nth-child(1) {
  opacity: 1; transform: translateY(0); transition-delay: 0.8s;
  border-color: #3A6B63; color: #78B3A8;
  box-shadow: 0 0 16px rgba(58, 107, 99, 0.45);
}
.ceremony-stage.is-opened .art-light-node:nth-child(2) {
  opacity: 1; transform: translateY(0); transition-delay: 1.0s;
  border-color: #2B5C75; color: #7DB5D1;
  box-shadow: 0 0 16px rgba(43, 92, 117, 0.45);
}
.ceremony-stage.is-opened .art-light-node:nth-child(3) {
  opacity: 1; transform: translateY(0); transition-delay: 1.2s;
  border-color: #9B281F; color: #F08D85;
  box-shadow: 0 0 16px rgba(155, 40, 31, 0.45);
}
.ceremony-stage.is-opened .art-light-node:nth-child(4) {
  opacity: 1; transform: translateY(0); transition-delay: 1.4s;
  border-color: #9E532B; color: #F2AE85;
  box-shadow: 0 0 16px rgba(158, 83, 43, 0.45);
}

.ceremony-main-title {
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  letter-spacing: 0.16em;
  color: var(--c-paper-100);
  margin-bottom: 10px;
  font-weight: 900;
  text-shadow: 0 4px 25px rgba(194, 150, 61, 0.5);
  line-height: 1.25;
  text-wrap: balance;
  word-break: keep-all;
}

.ceremony-main-title span {
  color: var(--c-gold-light);
}

.ceremony-lead {
  max-width: 720px;
  margin: 0 auto 16px;
  font-size: clamp(0.88rem, 1.8vw, 1.05rem);
  line-height: 1.95;
  color: var(--c-paper-300);
  text-wrap: pretty;
}

.ceremony-seal-wrapper {
  margin: 14px auto 20px;
  display: inline-block;
  position: relative;
}

.ceremony-grand-seal {
  width: clamp(90px, 16vw, 130px);
  height: clamp(90px, 16vw, 130px);
  border: 4px solid var(--c-vermilion-light);
  background: radial-gradient(circle, var(--c-vermilion) 0%, var(--c-vermilion-dark) 100%);
  color: var(--c-paper-100);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: clamp(0.95rem, 2.2vw, 1.3rem);
  font-weight: 900;
  letter-spacing: 0.16em;
  line-height: 1.25;
  box-shadow: 0 0 0 4px rgba(194, 150, 61, 0.4), 0 12px 35px rgba(155, 40, 31, 0.7);
  opacity: 0;
  transform: scale(3.5) rotate(-15deg);
  white-space: nowrap;
}

.ceremony-stage.is-opened .ceremony-grand-seal {
  animation: sealSlamImpact 0.75s cubic-bezier(0.18, 0.89, 0.32, 1.28) 1.5s forwards;
}

@keyframes sealSlamImpact {
  0% { opacity: 0; transform: scale(3.5) rotate(-15deg); }
  60% { opacity: 1; transform: scale(0.9) rotate(2deg); }
  80% { transform: scale(1.06) rotate(-1deg); }
  100% { opacity: 1; transform: scale(1) rotate(0deg); }
}

.ceremony-shockwave {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  transform: translate(-50%, -50%);
  border: 2px solid var(--c-gold-light);
  opacity: 0;
  pointer-events: none;
}

.ceremony-stage.is-opened .ceremony-shockwave {
  animation: shockwaveExpand 1.2s cubic-bezier(0.16, 1, 0.3, 1) 1.8s forwards;
}

@keyframes shockwaveExpand {
  0% { width: 10px; height: 10px; opacity: 1; border-width: 4px; }
  100% { width: 550px; height: 550px; opacity: 0; border-width: 1px; }
}

.ceremony-action-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
}

.btn-ceremony-replay {
  background: transparent;
  color: var(--c-gold-light);
  border: 1px solid var(--c-gold);
  padding: 8px 20px;
  font-family: var(--font-serif);
  font-size: clamp(0.82rem, 1.8vw, 0.92rem);
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.1em;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.btn-ceremony-replay:hover {
  background: var(--c-gold);
  color: var(--c-ink-900);
}

.ceremony-guest-counter {
  font-size: clamp(0.75rem, 1.6vw, 0.85rem);
  color: var(--c-paper-400);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

/* ===================================================================
   SECTION: 展覽緣起與總說 (CONCEPT & OVERVIEW)
   =================================================================== */
.overview-section {
  padding: clamp(50px, 7vw, 90px) 0;
  background-color: var(--c-paper-200);
  position: relative;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: clamp(20px, 3.5vw, 36px);
}

.overview-card {
  background-color: var(--c-paper-100);
  border: 1px solid var(--c-paper-400);
  padding: clamp(20px, 3vw, 32px);
  position: relative;
  box-shadow: var(--shadow-paper);
  min-width: 0;
}

.panel-preview-box {
  margin: 16px auto;
  border: 1.5px solid var(--c-paper-400);
  position: relative;
  cursor: zoom-in;
  overflow: hidden;
  background: #ffffff;
  aspect-ratio: 1 / 2;
  width: 100%;
  max-width: 270px;
  max-height: 520px;
  box-shadow: var(--shadow-paper);
  display: flex;
  align-items: center;
  justify-content: center;
}

.panel-preview-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.panel-preview-box:hover img {
  transform: scale(1.02);
}

.panel-preview-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(26, 23, 21, 0.85);
  color: var(--c-gold-light);
  font-size: 0.72rem;
  padding: 3px 8px;
  letter-spacing: 0.08em;
  border: 1px solid var(--c-gold);
  white-space: nowrap;
}

.overview-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-paper-300);
  gap: 10px;
  flex-wrap: wrap;
}

.overview-card-title {
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  color: var(--c-ochre-dark);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  word-break: keep-all;
}

.overview-card-text {
  font-size: clamp(0.92rem, 1.8vw, 1.02rem);
  line-height: 2;
  color: var(--c-ink-800);
  text-align: justify;
  text-justify: inter-ideograph;
}

.quote-highlight {
  font-size: clamp(0.95rem, 2vw, 1.12rem);
  font-weight: 700;
  color: var(--c-vermilion);
  display: block;
  margin: 14px 0;
  padding: 10px 16px;
  background-color: rgba(155, 40, 31, 0.05);
  border-left: 3px solid var(--c-vermilion);
}

/* ===================================================================
   SECTION: 四藝展區 (THE FOUR ARTS: 琴・棋・書・畫)
   =================================================================== */
.four-arts-section {
  padding: clamp(50px, 7vw, 90px) 0;
  background: linear-gradient(180deg, var(--c-paper-200) 0%, rgba(232, 220, 203, 0.4) 100%);
  border-top: 1px solid var(--c-paper-400);
  border-bottom: 1px solid var(--c-paper-400);
}

.arts-nav-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(6px, 1.5vw, 12px);
  margin-bottom: clamp(24px, 4vw, 36px);
}

.arts-tab-btn {
  background-color: var(--c-paper-100);
  border: 1px solid var(--c-paper-400);
  padding: clamp(10px, 1.8vw, 16px) 6px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  position: relative;
  min-width: 0;
}

.arts-tab-btn .tab-char {
  font-size: clamp(1.4rem, 3.2vw, 2.2rem);
  font-weight: 900;
  color: var(--c-ink-700);
  line-height: 1;
}

.arts-tab-btn .tab-label {
  font-size: clamp(0.78rem, 1.6vw, 0.95rem);
  font-weight: 700;
  color: var(--c-ink-800);
  letter-spacing: 0.04em;
  white-space: nowrap;
  word-break: keep-all;
}

.arts-tab-btn .tab-en {
  font-family: var(--font-en-classic);
  font-size: clamp(0.62rem, 1.2vw, 0.75rem);
  color: var(--c-ink-500);
  text-transform: uppercase;
  white-space: nowrap;
}

.arts-tab-btn:hover {
  background-color: #ffffff;
}

/* 琴 (Qin) - 汝窯天青碧綠 */
.arts-tab-btn[data-target="panel-qin"]:hover,
.arts-tab-btn:nth-child(1):hover {
  border-color: #3A6B63;
}
.arts-tab-btn[data-target="panel-qin"]:hover .tab-char {
  color: #3A6B63;
}
.arts-tab-btn[data-target="panel-qin"].active,
.arts-tab-btn:nth-child(1).active {
  background-color: #3A6B63;
  border-color: #2B524C;
  box-shadow: 0 6px 18px rgba(58, 107, 99, 0.35);
}
.arts-tab-btn[data-target="panel-qin"].active::after,
.arts-tab-btn:nth-child(1).active::after {
  border-top-color: #3A6B63;
}

/* 棋 (Qi) - 沉碧墨藍 / 靛青 */
.arts-tab-btn[data-target="panel-qi"]:hover,
.arts-tab-btn:nth-child(2):hover {
  border-color: #2B5C75;
}
.arts-tab-btn[data-target="panel-qi"]:hover .tab-char {
  color: #2B5C75;
}
.arts-tab-btn[data-target="panel-qi"].active,
.arts-tab-btn:nth-child(2).active {
  background-color: #2B5C75;
  border-color: #1D4357;
  box-shadow: 0 6px 18px rgba(43, 92, 117, 0.35);
}
.arts-tab-btn[data-target="panel-qi"].active::after,
.arts-tab-btn:nth-child(2).active::after {
  border-top-color: #2B5C75;
}

/* 書 (Shu) - 宮牆朱砂紅 */
.arts-tab-btn[data-target="panel-shu"]:hover,
.arts-tab-btn:nth-child(3):hover {
  border-color: #9B281F;
}
.arts-tab-btn[data-target="panel-shu"]:hover .tab-char {
  color: #9B281F;
}
.arts-tab-btn[data-target="panel-shu"].active,
.arts-tab-btn:nth-child(3).active {
  background-color: #9B281F;
  border-color: #7A1D16;
  box-shadow: 0 6px 18px rgba(155, 40, 31, 0.35);
}
.arts-tab-btn[data-target="panel-shu"].active::after,
.arts-tab-btn:nth-child(3).active::after {
  border-top-color: #9B281F;
}

/* 畫 (Hua) - 陶赭琥珀 / 泥金褐 */
.arts-tab-btn[data-target="panel-hua"]:hover,
.arts-tab-btn:nth-child(4):hover {
  border-color: #9E532B;
}
.arts-tab-btn[data-target="panel-hua"]:hover .tab-char {
  color: #9E532B;
}
.arts-tab-btn[data-target="panel-hua"].active,
.arts-tab-btn:nth-child(4).active {
  background-color: #9E532B;
  border-color: #753518;
  box-shadow: 0 6px 18px rgba(158, 83, 43, 0.35);
}
.arts-tab-btn[data-target="panel-hua"].active::after,
.arts-tab-btn:nth-child(4).active::after {
  border-top-color: #9E532B;
}

.arts-tab-btn.active .tab-char,
.arts-tab-btn.active .tab-label,
.arts-tab-btn.active .tab-en {
  color: var(--c-paper-100) !important;
}

.arts-tab-btn.active::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid var(--c-ochre-dark);
}

.arts-panel {
  display: none;
}

.arts-panel.active {
  display: block;
  animation: panelSlideIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes panelSlideIn {
  from { opacity: 0; transform: translateY(24px) scale(0.99); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.art-display-box {
  background-color: var(--c-paper-100);
  border: 1px solid var(--c-paper-400);
  padding: clamp(18px, 3.5vw, 40px);
  position: relative;
  box-shadow: var(--shadow-deep);
  min-width: 0;
}

.art-display-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--c-paper-300);
  padding-bottom: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.art-title-group {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
  min-width: 0;
}

.art-category-seal {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 900;
  padding: 4px 10px;
  border: 2px solid var(--c-vermilion);
  color: var(--c-vermilion);
  line-height: 1;
  flex-shrink: 0;
}

/* 各展區專屬四色印章與邊框主題 (Individual 4-Arts Themed Panel Styles) */
#panel-qin .art-display-box {
  border-top: 3px solid #3A6B63;
}
#panel-qin .art-category-seal {
  border-color: #3A6B63;
  color: #3A6B63;
  background: rgba(58, 107, 99, 0.06);
}
#panel-qin .stamp-seal.stamp-filled {
  background-color: #3A6B63;
  border-color: #3A6B63;
  color: #ffffff;
}
#panel-qin .art-section-sub {
  color: #3A6B63;
}

#panel-qi .art-display-box {
  border-top: 3px solid #2B5C75;
}
#panel-qi .art-category-seal {
  border-color: #2B5C75;
  color: #2B5C75;
  background: rgba(43, 92, 117, 0.06);
}
#panel-qi .stamp-seal.stamp-filled {
  background-color: #2B5C75;
  border-color: #2B5C75;
  color: #ffffff;
}
#panel-qi .art-section-sub {
  color: #2B5C75;
}

#panel-shu .art-display-box {
  border-top: 3px solid #9B281F;
}
#panel-shu .art-category-seal {
  border-color: #9B281F;
  color: #9B281F;
  background: rgba(155, 40, 31, 0.06);
}
#panel-shu .stamp-seal.stamp-filled {
  background-color: #9B281F;
  border-color: #9B281F;
  color: #ffffff;
}
#panel-shu .art-section-sub {
  color: #9B281F;
}

#panel-hua .art-display-box {
  border-top: 3px solid #9E532B;
}
#panel-hua .art-category-seal {
  border-color: #9E532B;
  color: #9E532B;
  background: rgba(158, 83, 43, 0.06);
}
#panel-hua .stamp-seal.stamp-filled {
  background-color: #9E532B;
  border-color: #9E532B;
  color: #ffffff;
}
#panel-hua .art-section-sub {
  color: #9E532B;
}

.art-section-title {
  font-size: clamp(1.3rem, 2.8vw, 1.85rem);
  color: var(--c-ink-900);
  margin-bottom: 4px;
}

.art-section-sub {
  font-size: clamp(0.85rem, 1.6vw, 1rem);
  color: var(--c-ochre-dark);
  font-weight: 600;
  display: block;
}

.art-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3.5vw, 36px);
  align-items: stretch;
}

.panel-gallery-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.exhibition-board-item {
  background: #ffffff;
  border: 1px solid var(--c-paper-400);
  padding: clamp(10px, 2vw, 14px);
  transition: var(--transition-smooth);
  min-width: 0;
}

.exhibition-board-item:hover {
  border-color: var(--c-gold);
  box-shadow: var(--shadow-paper);
}

.board-img-container {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-paper-300);
  cursor: zoom-in;
  background: #ffffff;
  aspect-ratio: 1 / 2;
  width: 100%;
  max-width: 290px;
  margin: 0 auto;
  box-shadow: var(--shadow-paper);
  display: flex;
  align-items: center;
  justify-content: center;
}

.board-img-container img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
  display: block;
}

.board-img-container:hover img {
  transform: scale(1.02);
}

.board-zoom-hint {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(26, 23, 21, 0.85);
  color: var(--c-paper-100);
  font-size: 0.72rem;
  padding: 3px 8px;
  border: 1px solid var(--c-gold);
  white-space: nowrap;
}

.board-caption-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  font-size: 0.88rem;
  color: var(--c-ink-800);
  font-weight: 700;
  gap: 8px;
  flex-wrap: wrap;
}

.relic-showcase-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.relic-card {
  background-color: #ffffff;
  border: 1px solid var(--c-paper-400);
  padding: clamp(16px, 2.5vw, 22px);
  transition: var(--transition-smooth);
  min-width: 0;
}

.relic-card:hover {
  border-color: var(--c-gold);
  box-shadow: var(--shadow-paper);
}

.relic-card-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-family: var(--font-en-classic);
  font-weight: 700;
  color: var(--c-gold-dark);
  border-bottom: 1px solid var(--c-gold);
  padding-bottom: 2px;
  margin-bottom: 6px;
  white-space: nowrap;
}

.relic-title {
  font-size: clamp(1.05rem, 2.2vw, 1.15rem);
  color: var(--c-ink-900);
  margin-bottom: 6px;
}

.relic-meta {
  font-size: 0.82rem;
  color: var(--c-ink-500);
  margin-bottom: 10px;
}

.relic-desc {
  font-size: clamp(0.88rem, 1.8vw, 0.94rem);
  line-height: 1.85;
  color: var(--c-ink-700);
  text-align: justify;
  text-justify: inter-ideograph;
}

.relic-img-wrap {
  margin: 12px 0 8px;
  border: 1px solid var(--c-paper-300);
  cursor: zoom-in;
  overflow: hidden;
  background: #ffffff;
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-paper);
}

.relic-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.relic-img-wrap:hover img {
  transform: scale(1.03);
}

.relic-img-cutout {
  aspect-ratio: 0.68 / 1;
  max-width: 160px;
  max-height: 220px;
  margin: 12px auto 8px;
  background: transparent;
  border: none;
  box-shadow: none;
}

.relic-img-cutout img {
  object-fit: contain;
}

/* ===================================================================
   文物畫作與品名卡並置展櫃 (ARTIFACT & NAMECARD SIDE-BY-SIDE)
   =================================================================== */
.artifact-with-namecard {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 14px;
  align-items: stretch;
  margin: 14px 0 12px;
}

@media (max-width: 640px) {
  .artifact-with-namecard {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

.artifact-artwork-wrap {
  position: relative;
  border: 1px solid var(--c-paper-300);
  background: #ffffff;
  overflow: hidden;
  cursor: zoom-in;
  box-shadow: var(--shadow-paper);
  display: flex;
  flex-direction: column;
  justify-content: center;
  aspect-ratio: 16 / 9;
  padding: 0;
}

.artifact-artwork-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  background: #fff;
  margin: auto;
}

.artifact-artwork-wrap:hover img {
  transform: scale(1.03);
}

.artifact-namecard-wrap {
  position: relative;
  border: 1.5px solid var(--c-gold);
  background: var(--c-paper-100);
  overflow: hidden;
  cursor: zoom-in;
  box-shadow: var(--shadow-paper);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  aspect-ratio: 2 / 1;
  padding: 0;
  transition: border-color var(--t-normal), box-shadow var(--t-normal);
}

.artifact-namecard-wrap:hover {
  border-color: var(--c-gold-light);
  box-shadow: var(--shadow-palace);
}

.artifact-namecard-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  margin: auto;
}

.artifact-namecard-wrap:hover img {
  transform: scale(1.035);
}

.artifact-tag-sub {
  position: absolute;
  top: 6px;
  left: 6px;
  background: rgba(26, 23, 21, 0.88);
  color: var(--c-gold-light);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 2px 7px;
  letter-spacing: 0.06em;
  border: 1px solid var(--c-gold);
  white-space: nowrap;
  pointer-events: none;
  z-index: 2;
}

/* 獨立大尺寸品名卡展示卡 (Dedicated Featured Namecard Showcase) */
.namecard-featured-card {
  border-left: 3px solid var(--c-gold);
  background: linear-gradient(145deg, #ffffff 0%, var(--c-paper-100) 100%);
}

.namecard-standalone-wrap {
  position: relative;
  border: 1.5px solid var(--c-gold);
  background: var(--c-paper-50, #fcfaf7);
  overflow: hidden;
  cursor: zoom-in;
  box-shadow: var(--shadow-palace);
  display: flex;
  justify-content: center;
  align-items: center;
  aspect-ratio: 2 / 1;
  width: 100%;
  margin: 12px 0 8px;
  padding: 0;
  transition: border-color var(--t-normal), box-shadow var(--t-normal), transform var(--t-normal);
}

.namecard-standalone-wrap:hover {
  border-color: var(--c-gold-light);
  box-shadow: 0 10px 30px rgba(184, 150, 90, 0.25);
  transform: translateY(-2px);
}

.namecard-standalone-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  margin: auto;
}

.namecard-standalone-wrap:hover img {
  transform: scale(1.025);
}

/* ===================================================================
   SECTION: 觀展前 ｜ 初見女子想像留言牆 (PRE-EXHIBITION STICKY WALL)
   =================================================================== */
.pre-visit-section {
  padding: clamp(50px, 7vw, 90px) 0;
  background: var(--c-paper-200);
  border-bottom: 1px solid var(--c-paper-400);
}

/* ===================================================================
   SECTION: 展覽結語 ｜ 穿越千年後的你 (REDESIGNED STANDALONE EPILOGUE)
   =================================================================== */
.epilogue-standalone-section {
  padding: clamp(60px, 8vw, 100px) 0;
  background: linear-gradient(180deg, var(--c-paper-100) 0%, var(--c-paper-200) 50%, var(--c-paper-100) 100%);
  border-top: 1px solid var(--c-paper-400);
  border-bottom: 1px solid var(--c-paper-400);
}

/* 核心策展大金句橫幅 (Grand Golden Manifesto Banner) */
.epilogue-manifesto-banner {
  background: linear-gradient(135deg, #2a1816 0%, #1c1412 100%);
  color: var(--c-paper-100);
  padding: clamp(24px, 4vw, 36px);
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 28px);
  box-shadow: 0 12px 36px rgba(42, 24, 22, 0.28);
  border: 1px solid var(--c-gold);
  position: relative;
  overflow: hidden;
}

.epilogue-manifesto-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--c-gold-light), transparent);
}

.manifesto-seal-mark {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 0;
}

.stamp-large {
  font-size: 0.85rem;
  padding: 4px 10px;
}

.manifesto-content-wrap {
  flex: 1;
}

.manifesto-main-title {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.8vw, 1.75rem);
  font-weight: 800;
  color: var(--c-gold-light);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.manifesto-sub-lead {
  font-size: clamp(0.9rem, 1.8vw, 0.98rem);
  color: var(--c-paper-300);
  line-height: 1.7;
  max-width: 800px;
}

.manifesto-badge-group {
  flex-shrink: 0;
}

.manifesto-topic-tag {
  background: rgba(194, 150, 61, 0.18);
  color: var(--c-gold-light);
  border: 1px solid var(--c-gold);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 12px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

@media (max-width: 860px) {
  .epilogue-manifesto-banner {
    flex-direction: column;
    align-items: flex-start;
  }
  .manifesto-seal-mark {
    flex-direction: row;
  }
}

/* 主體展陳雙欄大卡片 (Epilogue Master Showcase Card) */
.epilogue-master-card {
  background: var(--c-paper-100);
  border: 1px solid var(--c-paper-400);
  padding: clamp(24px, 4vw, 44px);
  box-shadow: var(--shadow-palace);
}

.epilogue-showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: clamp(20px, 3.5vw, 36px);
  align-items: stretch;
}

@media (max-width: 900px) {
  .epilogue-showcase-grid {
    grid-template-columns: 1fr;
  }
}

/* 左欄：展板展示 */
.epilogue-showcase-board-col {
  display: flex;
  flex-direction: column;
  justify-content: stretch;
}

.epilogue-board-highlight {
  border: 1.5px solid var(--c-gold);
  box-shadow: var(--shadow-palace);
  display: flex;
  flex-direction: column;
  height: 100%;
  margin-bottom: 0;
}

.epilogue-board-highlight .board-img-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  padding: 8px;
}

.epilogue-board-highlight .board-img-container img {
  width: 100%;
  height: auto;
  max-height: 410px;
  object-fit: contain;
  margin: auto;
}

/* 右欄：四藝群像回顧 ＆ 策展總結 */
.epilogue-narrative-col {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

/* 模組一：四藝閃耀才女回顧 */
.epilogue-four-talents-card {
  background: var(--c-paper-50, #fcfaf7);
  border: 1px solid var(--c-paper-300);
  padding: 16px 18px;
}

.talents-card-heading {
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--c-ochre-dark);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  border-bottom: 1px dashed var(--c-paper-400);
  padding-bottom: 6px;
}

.talents-heading-seal {
  color: var(--c-gold);
}

.talents-micro-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

@media (max-width: 600px) {
  .talents-micro-grid {
    grid-template-columns: 1fr;
  }
}

.talent-micro-item {
  background: #ffffff;
  border: 1px solid var(--c-paper-300);
  padding: 10px 12px;
  box-shadow: var(--shadow-paper);
  transition: transform var(--t-fast), border-color var(--t-fast);
}

.talent-micro-item:hover {
  transform: translateY(-2px);
  border-color: var(--c-gold);
}

.talent-item-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

.talent-art-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  font-size: 0.7rem;
  font-weight: 800;
  font-family: var(--font-serif);
  color: #fff;
  border-radius: 0;
  flex-shrink: 0;
}

.art-badge-qin {
  background: var(--c-celadon, #4a746d);
}

.art-badge-qi {
  background: #2b5c75;
}

.art-badge-shu {
  background: var(--c-vermilion, #9b281f);
}

.art-badge-hua {
  background: var(--c-ochre-dark, #8b4513);
}

.talent-names {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--c-ink-900);
}

.talent-item-desc {
  font-size: 0.78rem;
  color: var(--c-ink-700);
  line-height: 1.5;
  margin: 0;
}

/* 模組二：我們希望你帶走的是...？ */
.epilogue-takeaway-box {
  background: rgba(194, 150, 61, 0.06);
  border: 1px solid rgba(194, 150, 61, 0.3);
  padding: 14px 18px;
}

.takeaway-heading {
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--c-vermilion-dark);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.takeaway-seal {
  color: var(--c-vermilion);
}

.takeaway-text {
  font-size: clamp(0.88rem, 1.8vw, 0.94rem);
  color: var(--c-ink-800);
  line-height: 1.75;
  margin: 0;
  text-align: justify;
  text-justify: inter-ideograph;
}

/* 底部橫向跨欄：跨時空心靈叩問 ＆ 行動按鈕列 */
.epilogue-bottom-interactive-bar {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px dashed var(--c-paper-400);
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 20px;
  align-items: center;
}

@media (max-width: 900px) {
  .epilogue-bottom-interactive-bar {
    grid-template-columns: 1fr;
  }
}

.epilogue-core-question-box {
  background: linear-gradient(135deg, rgba(155, 40, 31, 0.06) 0%, rgba(184, 93, 67, 0.04) 100%);
  border-left: 4px solid var(--c-vermilion);
  border-top: 1px solid rgba(155, 40, 31, 0.15);
  border-right: 1px solid rgba(155, 40, 31, 0.15);
  border-bottom: 1px solid rgba(155, 40, 31, 0.15);
  padding: 14px 18px;
}

.question-box-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.question-icon-badge {
  font-size: 0.95rem;
}

.question-header-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--c-vermilion-dark);
  letter-spacing: 0.08em;
}

.question-highlight-quote {
  font-family: var(--font-serif);
  font-size: clamp(0.96rem, 2vw, 1.08rem);
  font-weight: 700;
  color: var(--c-ink-900);
  line-height: 1.55;
  margin-bottom: 4px;
}

.question-footnote {
  font-size: 0.78rem;
  color: var(--c-ochre-dark);
  font-style: italic;
  letter-spacing: 0.04em;
}

/* 模組三：前往互動與留言牆行動按鈕 */
.epilogue-action-deck {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-epilogue-act {
  width: 100%;
  justify-content: center;
  padding: 11px 16px;
  font-size: 0.9rem;
}

/* ===================================================================
   SECTION: 觀展後 ｜ 千年迴響心聲留言牆 (POST-EXHIBITION STICKY WALL)
   =================================================================== */
.post-visit-section {
  padding: clamp(50px, 7vw, 90px) 0;
  background: var(--c-paper-200);
  border-top: 1px solid var(--c-paper-400);
  border-bottom: 1px solid var(--c-paper-400);
}

/* =============================================================
   🏛️ 才女時空對話 ｜ 左右並排留言牆 (Dual Side-by-Side Dialogue Wall)
   ============================================================= */
.dialogue-wall-section {
  background: var(--c-paper-200);
  border-top: 1px solid var(--c-paper-400);
  border-bottom: 1px solid var(--c-paper-400);
  padding: clamp(40px, 6vw, 70px) 0;
}

/* 左右並排主網格 (Dual Wall Grid) */
.dual-wall-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(20px, 3.5vw, 32px);
  margin-bottom: 36px;
  align-items: stretch;
}

@media (max-width: 860px) {
  .dual-wall-grid {
    grid-template-columns: 1fr;
  }
}

/* 左右兩側單欄卡片 */
.wall-column-box {
  background: var(--c-paper-100);
  border: 1px solid var(--c-paper-400);
  padding: clamp(20px, 3vw, 28px);
  box-shadow: var(--shadow-paper);
  display: flex;
  flex-direction: column;
  position: relative;
  border-radius: 4px;
}

.wall-col-pre {
  border-top: 3px solid var(--c-ochre);
}

.wall-col-post {
  border-top: 3px solid var(--c-vermilion);
}

.wall-col-header {
  border-bottom: 1px dashed var(--c-paper-400);
  padding-bottom: 14px;
  margin-bottom: 16px;
}

.wall-col-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--c-gold-dark);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.wall-col-title {
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  font-weight: 800;
  color: var(--c-ink-900);
  margin: 0 0 6px 0;
  letter-spacing: 0.05em;
}

.wall-col-prompt {
  font-size: 0.88rem;
  color: var(--c-ochre-dark);
  font-weight: 600;
  line-height: 1.5;
  background: rgba(184, 93, 67, 0.06);
  padding: 6px 10px;
  border-left: 3px solid var(--c-ochre);
  margin: 6px 0 10px 0;
}

/* 展板微型預覽 */
.board-preview-mini {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1px solid var(--c-paper-400);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.78rem;
  color: var(--c-ink-800);
  cursor: pointer;
  transition: all 0.2s ease;
}

.board-preview-mini img {
  width: 24px;
  height: 24px;
  object-fit: cover;
  border-radius: 2px;
}

.board-preview-mini:hover {
  border-color: var(--c-gold);
  background: var(--c-paper-200);
  color: var(--c-ochre-dark);
}

/* 無留言時之優雅空狀態提示 */
.empty-notes-hint {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 36px 16px;
  color: var(--c-ink-500, #8c827a);
  font-size: 0.88rem;
  font-style: italic;
  letter-spacing: 0.05em;
  background: rgba(255, 255, 255, 0.4);
  border: 1px dashed var(--c-paper-400);
  border-radius: 6px;
  text-align: center;
}

/* =============================================================
   📝 底部單一統一便利貼發布台 (Unified Sticky Posting Station)
   ============================================================= */
.unified-sticky-station {
  background: var(--c-paper-100);
  border: 1.5px solid var(--c-gold);
  padding: clamp(22px, 3.5vw, 32px);
  box-shadow: var(--shadow-paper), 0 8px 30px rgba(223, 186, 104, 0.12);
  border-radius: 6px;
  position: relative;
}

.station-header {
  border-bottom: 1px dashed var(--c-paper-400);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.station-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.station-main-title {
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  font-weight: 800;
  color: var(--c-ink-900);
  margin: 0;
  letter-spacing: 0.08em;
}

.station-desc {
  font-size: 0.86rem;
  color: var(--c-ink-700);
  margin: 4px 0 0 0;
}

/* 快捷標籤列 */
.station-tags-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 8px;
  margin-bottom: 18px;
}

.station-tags-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--c-gold-dark);
}

.station-tag-chip {
  background: #ffffff;
  border: 1px solid var(--c-paper-400);
  padding: 4px 10px;
  font-size: 0.76rem;
  color: var(--c-ink-800);
  font-family: var(--font-serif);
  cursor: pointer;
  border-radius: 999px;
  transition: all 0.2s ease;
}

.station-tag-chip:hover {
  background: var(--c-gold);
  color: #120e0c;
  border-color: var(--c-gold);
  transform: translateY(-1px);
}

/* 表單本體 */
.unified-sticky-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* 貼紙目標切換 (Switch Pills) */
.form-target-switch {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.switch-option {
  cursor: pointer;
  user-select: none;
}

.switch-option input[type="radio"] {
  display: none;
}

.switch-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--c-paper-400);
  background: #ffffff;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--c-ink-700);
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.4, 1);
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-paper-400);
  transition: background 0.2s ease;
}

.switch-option input[type="radio"]:checked + .pill-pre {
  background: rgba(223, 186, 104, 0.18);
  border-color: var(--c-gold);
  color: var(--c-ink-900);
  box-shadow: 0 4px 12px rgba(223, 186, 104, 0.2);
}
.switch-option input[type="radio"]:checked + .pill-pre .pill-dot {
  background: var(--c-gold);
  box-shadow: 0 0 6px var(--c-gold);
}

.switch-option input[type="radio"]:checked + .pill-post {
  background: rgba(184, 51, 42, 0.12);
  border-color: var(--c-vermilion);
  color: var(--c-ink-900);
  box-shadow: 0 4px 12px rgba(184, 51, 42, 0.15);
}
.switch-option input[type="radio"]:checked + .pill-post .pill-dot {
  background: var(--c-vermilion);
  box-shadow: 0 0 6px var(--c-vermilion);
}

/* 輸入框組 */
.form-input-cluster {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.main-msg-input {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--c-paper-400);
  border-radius: 6px;
  background: #ffffff;
  font-family: var(--font-serif);
  font-size: 0.94rem;
  color: var(--c-ink-900);
  box-sizing: border-box;
}

.main-msg-input:focus {
  outline: none;
  border-color: var(--c-gold);
  box-shadow: 0 0 10px rgba(223, 186, 104, 0.25);
}

.form-bottom-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.author-msg-input {
  flex: 1 1 200px;
  padding: 10px 14px;
  border: 1px solid var(--c-paper-400);
  border-radius: 6px;
  background: #ffffff;
  font-family: var(--font-serif);
  font-size: 0.88rem;
  box-sizing: border-box;
}

.author-msg-input:focus {
  outline: none;
  border-color: var(--c-gold);
}

.submit-sticky-btn {
  flex: 0 0 auto;
  padding: 10px 24px;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
}

/* 便利貼留言瀑布滾動展示牆 (Sticky Notes Display Wall) */
.sticky-notes-display {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 4px;
  max-height: 310px;
  overflow-y: auto;
  padding: 6px 4px;
  scrollbar-width: thin;
  scrollbar-color: var(--c-gold) transparent;
}

@media (max-width: 580px) {
  .sticky-notes-display {
    grid-template-columns: 1fr;
    max-height: 360px;
  }
}

.sticky-notes-display::-webkit-scrollbar {
  width: 5px;
}

.sticky-notes-display::-webkit-scrollbar-thumb {
  background-color: var(--c-gold);
}

/* 便利貼紙張卡片 (Sticky Note Card) */
.sticky-note-card {
  padding: 12px 14px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.06);
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--c-ink-800);
  position: relative;
  min-width: 0;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.sticky-note-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.1);
}

.sticky-note-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 4px;
  background: rgba(184, 93, 67, 0.35);
}

/* 仿古紙張配色系統 */
.note-paper-yellow {
  background: #fff9e6;
  border: 1px solid #ebd49d;
}

.note-paper-pink {
  background: #fff1f2;
  border: 1px solid #f2c7ce;
}

.note-paper-cyan {
  background: #edf7f5;
  border: 1px solid #bfe3dd;
}

.note-paper-white {
  background: #fbf9f4;
  border: 1px solid #ded6c5;
}

.sticky-note-author {
  display: block;
  text-align: right;
  font-size: 0.72rem;
  color: var(--c-ochre-dark);
  font-weight: 700;
  margin-top: 6px;
  white-space: nowrap;
}

/* ===================================================================
   SECTION: 互動特色體驗 (INTERACTIVE: 圍棋十訣 籤詩 & 古琴音律)
   =================================================================== */
.interactive-section {
  padding: clamp(50px, 7vw, 90px) 0;
  background-color: var(--c-paper-200);
  position: relative;
  border-top: 1px solid var(--c-paper-400);
}

.interactive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: clamp(20px, 3.5vw, 40px);
}

.fortune-box {
  background-color: var(--c-paper-100);
  border: 1px solid var(--c-gold);
  padding: clamp(18px, 3vw, 36px);
  box-shadow: var(--shadow-deep);
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.fortune-header {
  text-align: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-paper-300);
}

.fortune-title {
  font-size: clamp(1.25rem, 2.5vw, 1.55rem);
  color: var(--c-ochre-dark);
  margin-bottom: 4px;
}

.fortune-subtitle {
  font-size: 0.88rem;
  color: var(--c-ink-600);
}

.fortune-action-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin: 6px 0 18px;
}

.fortune-cylinder {
  width: 124px;
  height: 148px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-top: 18px;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease;
  box-shadow: 0 12px 28px rgba(26, 15, 10, 0.25), inset 0 0 16px rgba(0, 0, 0, 0.4);
  border: 1px solid #361408;

  /* 故宮古典紫檀/黃花梨立體天然木紋 */
  background-color: #5c2b16;
  background-image:
    /* 圓柱立體受光與兩側陰影 */
    linear-gradient(90deg, rgba(20, 8, 4, 0.55) 0%, rgba(255, 255, 255, 0.08) 28%, rgba(255, 255, 255, 0.12) 34%, rgba(20, 8, 4, 0.45) 85%, rgba(15, 6, 2, 0.65) 100%),
    /* 天然木結與木眼 (Wood knots) */
    radial-gradient(ellipse 40px 18px at 28% 32%, rgba(45, 18, 8, 0.45) 0%, transparent 60%),
    radial-gradient(ellipse 50px 24px at 72% 68%, rgba(35, 14, 6, 0.4) 0%, transparent 65%),
    /* 微斜縱向天然實木木纖維 (Fine natural wood grain striations) */
    repeating-linear-gradient(
      88deg,
      rgba(48, 20, 10, 0.55) 0px,
      rgba(92, 43, 22, 0.45) 3px,
      rgba(138, 70, 36, 0.35) 6px,
      rgba(74, 32, 16, 0.5) 8px,
      rgba(110, 52, 26, 0.4) 12px,
      rgba(58, 24, 12, 0.55) 15px
    ),
    /* 垂直深淺木質底色 */
    linear-gradient(180deg, #6e331b 0%, #4a2010 50%, #361408 100%);
}

/* 籤筒頂部與底部 泥金青銅鑲箍 (Antique Brass Hoops) */
.fortune-cylinder::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: linear-gradient(90deg, #8a6828 0%, #dfba68 30%, #fff2b2 40%, #c2963d 70%, #5c4214 100%);
  border-top: 1px solid #ffe89e;
  border-bottom: 1px solid #3d2c0b;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  z-index: 3;
}

.fortune-cylinder::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: linear-gradient(90deg, #8a6828 0%, #dfba68 30%, #fff2b2 40%, #c2963d 70%, #5c4214 100%);
  border-top: 1px solid #ffe89e;
  border-bottom: 1px solid #3d2c0b;
  box-shadow: 0 -1px 3px rgba(0,0,0,0.3);
  z-index: 3;
}

.fortune-cylinder:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 16px 36px rgba(26, 15, 10, 0.32), inset 0 0 16px rgba(0, 0, 0, 0.4);
}

.fortune-cylinder.shaking {
  animation: shake 0.6s ease-in-out infinite;
}

@keyframes shake {
  0%, 100% { transform: rotate(0deg); }
  20% { transform: rotate(-8deg); }
  40% { transform: rotate(8deg); }
  60% { transform: rotate(-5deg); }
  80% { transform: rotate(5deg); }
}

/* 竹籤探出籤筒頂部動效 (Bamboo Fortune Sticks) */
.cylinder-sticks {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  width: 72px;
  height: 22px;
  pointer-events: none;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 4px;
  z-index: 1;
}

.fortune-stick {
  display: inline-block;
  width: 7px;
  background: linear-gradient(180deg, var(--c-vermilion) 0%, var(--c-vermilion) 5px, #d8b888 6px, #bfa068 100%);
  border: 0.5px solid #8f703e;
  border-bottom: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.25);
  transition: transform 0.3s ease;
}

.fortune-stick.stick-1 { height: 16px; transform: rotate(-8deg); }
.fortune-stick.stick-2 { height: 22px; transform: rotate(-3deg); }
.fortune-stick.stick-3 { height: 25px; transform: rotate(0deg); }
.fortune-stick.stick-4 { height: 20px; transform: rotate(4deg); }
.fortune-stick.stick-5 { height: 17px; transform: rotate(9deg); }

.fortune-cylinder:hover .fortune-stick.stick-3 {
  transform: translateY(-4px);
}

.fortune-cylinder.shaking .fortune-stick.stick-2 {
  animation: stickBob 0.3s infinite alternate;
}
.fortune-cylinder.shaking .fortune-stick.stick-3 {
  animation: stickBob 0.35s infinite alternate-reverse;
}
.fortune-cylinder.shaking .fortune-stick.stick-4 {
  animation: stickBob 0.28s infinite alternate;
}

@keyframes stickBob {
  0% { transform: translateY(0); }
  100% { transform: translateY(-7px); }
}

/* 籤筒銘牌 (金漆木雕立體牌) */
.cylinder-label {
  color: #fff2b2;
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: 0.22em;
  writing-mode: vertical-rl;
  text-orientation: upright;
  background: rgba(30, 12, 6, 0.78);
  border: 1.5px solid var(--c-gold);
  padding: 8px 6px;
  box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.6), 0 2px 6px rgba(0, 0, 0, 0.35);
  text-shadow: 0 0 4px rgba(223, 186, 104, 0.6), 0 1px 2px rgba(0, 0, 0, 0.9);
  position: relative;
  z-index: 2;
}

.fortune-result-card {
  background-color: var(--c-paper-100);
  border: 2px solid var(--c-ochre);
  padding: clamp(16px, 2.5vw, 24px);
  position: relative;
  display: none;
  animation: slipAppear 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slipAppear {
  from { opacity: 0; transform: translateY(20px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.result-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--c-vermilion);
  padding-bottom: 10px;
  margin-bottom: 12px;
  gap: 8px;
  flex-wrap: wrap;
}

.result-slip-num {
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  font-weight: 900;
  color: var(--c-vermilion);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.result-yi-ji {
  display: flex;
  gap: 10px;
  font-size: 0.88rem;
  flex-wrap: wrap;
}

.yi-tag {
  color: var(--c-celadon);
  font-weight: 700;
}

.ji-tag {
  color: var(--c-vermilion);
  font-weight: 700;
}

.result-meaning {
  font-size: clamp(0.92rem, 1.8vw, 1.02rem);
  line-height: 1.9;
  color: var(--c-ink-800);
  margin-bottom: 12px;
}

.result-whisper {
  background-color: rgba(245, 238, 223, 0.8);
  border-left: 3px solid var(--c-gold);
  padding: 10px 14px;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--c-ochre-dark);
  font-weight: 600;
}

.qin-sound-box {
  background-color: var(--c-paper-100);
  border: 1px solid var(--c-paper-400);
  padding: clamp(18px, 3vw, 36px);
  box-shadow: var(--shadow-deep);
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.qin-notes-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: clamp(4px, 1.2vw, 10px);
  margin: 18px 0;
}

.qin-key-btn {
  background-color: #ffffff;
  border: 1px solid var(--c-paper-400);
  padding: clamp(10px, 2vw, 20px) 2px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 0;
}

.qin-key-btn:hover {
  background-color: var(--c-paper-200);
  border-color: var(--c-gold);
  transform: translateY(-3px);
}

.qin-key-btn:active,
.qin-key-btn.playing {
  background-color: var(--c-ochre-dark);
  border-color: var(--c-gold);
  color: var(--c-paper-100);
}

.qin-key-btn.playing .qin-tone-name,
.qin-key-btn.playing .qin-western-note {
  color: var(--c-paper-100);
}

.qin-tone-name {
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  font-weight: 900;
  color: var(--c-ink-900);
  line-height: 1;
}

.qin-western-note {
  font-family: var(--font-en-classic);
  font-size: clamp(0.6rem, 1.1vw, 0.72rem);
  color: var(--c-ink-500);
  font-weight: 700;
  white-space: nowrap;
}

.jianzi-demo-box {
  background-color: rgba(245, 238, 223, 0.6);
  border: 1px solid var(--c-paper-300);
  padding: 14px;
  margin-top: 10px;
}

.jianzi-demo-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-ochre-dark);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.jianzi-demo-text {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--c-ink-700);
  text-align: justify;
  text-justify: inter-ideograph;
}

/* ===================================================================
   SECTION: 活動時程與工作坊 (EVENTS & WORKSHOPS)
   =================================================================== */
.events-section {
  padding: clamp(50px, 7vw, 90px) 0;
  background-color: var(--c-paper-200);
  border-top: 1px solid var(--c-paper-400);
}

.timeline-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.event-card {
  display: grid;
  grid-template-columns: clamp(110px, 18vw, 150px) minmax(0, 1fr);
  background-color: var(--c-paper-100);
  border: 1px solid var(--c-paper-400);
  box-shadow: var(--shadow-paper);
  transition: var(--transition-smooth);
  min-width: 0;
}

.event-card:hover {
  border-color: var(--c-gold);
  box-shadow: var(--shadow-deep);
}

.event-date-column {
  background-color: var(--c-ochre-dark);
  color: var(--c-paper-100);
  padding: clamp(14px, 2.5vw, 24px) 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-right: 2px solid var(--c-gold);
}

.event-date-day {
  font-size: clamp(1.8rem, 3.5vw, 2.2rem);
  font-weight: 900;
  line-height: 1;
  font-family: var(--font-en-classic);
  color: var(--c-gold-light);
}

.event-date-month {
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  margin-top: 4px;
  white-space: nowrap;
}

.event-date-weekday {
  font-size: 0.72rem;
  opacity: 0.9;
  margin-top: 4px;
  border: 1px solid rgba(223, 186, 104, 0.4);
  padding: 2px 6px;
  white-space: nowrap;
}

.event-content-column {
  padding: clamp(16px, 2.5vw, 24px) clamp(14px, 2.5vw, 28px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  min-width: 0;
}

.event-header-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.event-title {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--c-ink-900);
}

.event-status-tag {
  font-size: 0.75rem;
  padding: 2px 8px;
  font-weight: 700;
  border: 1px solid var(--c-celadon);
  color: var(--c-celadon);
  white-space: nowrap;
}

.event-meta-list {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(8px, 1.8vw, 16px);
  font-size: 0.86rem;
  color: var(--c-ink-600);
}

.event-meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.event-desc {
  font-size: clamp(0.88rem, 1.6vw, 0.95rem);
  line-height: 1.85;
  color: var(--c-ink-800);
}

/* ===================================================================
   SECTION: 參觀資訊與場地 (VISIT INFO & VENUE)
   =================================================================== */
.visit-section {
  padding: clamp(50px, 7vw, 90px) 0;
  background: linear-gradient(180deg, rgba(235, 220, 200, 0.3) 0%, var(--c-paper-200) 100%);
  border-top: 1px solid var(--c-paper-400);
}

.visit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: clamp(20px, 3.5vw, 40px);
}

.visit-info-card {
  background-color: var(--c-paper-100);
  border: 1px solid var(--c-paper-400);
  padding: clamp(18px, 3vw, 36px);
  box-shadow: var(--shadow-paper);
  min-width: 0;
}

.info-rows {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 16px;
}

.info-row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.info-icon-stamp {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  background-color: var(--c-paper-200);
  border: 1px solid var(--c-ochre);
  color: var(--c-ochre-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.info-text-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.info-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-ink-900);
}

.info-detail {
  font-size: 0.9rem;
  color: var(--c-ink-700);
  line-height: 1.75;
}

.venue-map-card {
  background-color: var(--c-paper-100);
  border: 1px solid var(--c-gold);
  padding: clamp(14px, 2.2vw, 20px);
  box-shadow: var(--shadow-paper);
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.map-image-box {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-paper-400);
  cursor: zoom-in;
  background: #fff;
}

.map-image-box img {
  width: 100%;
  height: auto;
  transition: transform 0.4s ease;
}

.map-image-box:hover img {
  transform: scale(1.02);
}

.map-caption {
  font-size: 0.82rem;
  color: var(--c-ink-600);
  text-align: center;
  font-style: italic;
}

/* ===================================================================
   SECTION: 二次展覽・線上策展與籌備專區 (SECONDARY EXHIBITION & TEAM CREDITS)
   =================================================================== */
.secondary-exhibition-section {
  padding: clamp(50px, 7vw, 90px) 0;
  background: linear-gradient(180deg, var(--c-paper-200) 0%, rgba(235, 220, 200, 0.45) 100%);
  border-top: 1px solid var(--c-paper-400);
}

.curation-block-wrapper {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.curation-block-card {
  background-color: var(--c-paper-100);
  border: 1px solid var(--c-paper-400);
  padding: clamp(20px, 3.5vw, 36px);
  box-shadow: var(--shadow-paper);
  min-width: 0;
}

.curation-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--c-paper-300);
  padding-bottom: 14px;
  margin-bottom: 22px;
  gap: 10px;
  flex-wrap: wrap;
}

.curation-block-title {
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  color: var(--c-ochre-dark);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* 四校巡迴時程網格 */
.tour-campuses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 16px;
}

.campus-tour-item {
  background: #ffffff;
  border: 1px solid var(--c-paper-400);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  transition: var(--transition-smooth);
  position: relative;
  min-width: 0;
}

.campus-tour-item:hover {
  border-color: var(--c-gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-paper);
}

.campus-tour-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.campus-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-ink-900);
}

.campus-dates {
  font-size: 0.88rem;
  color: var(--c-ochre-dark);
  font-weight: 700;
  font-family: var(--font-en-classic);
}

.campus-detail-text {
  font-size: 0.84rem;
  color: var(--c-ink-700);
  line-height: 1.6;
}

.campus-ambassador-badge {
  font-size: 0.75rem;
  color: var(--c-vermilion);
  font-weight: 700;
  border-top: 1px dashed var(--c-paper-300);
  padding-top: 6px;
  margin-top: 4px;
}

/* 線上二次展覽製作團隊網格 */
.online-team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 16px;
}

.team-member-card {
  background: #ffffff;
  border: 1px solid var(--c-paper-400);
  padding: clamp(16px, 2.5vw, 20px);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 10px;
  transition: var(--transition-smooth);
  position: relative;
  min-width: 0;
}

.team-member-card:not(:has(.member-role-badge)) {
  justify-content: center;
  min-height: 76px;
  background: linear-gradient(135deg, #ffffff 0%, var(--c-paper-100) 100%);
}

.team-member-card:hover {
  border-color: var(--c-gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-deep);
}

.member-header-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.member-dept-tag {
  font-size: 0.75rem;
  padding: 2px 8px;
  background-color: rgba(184, 93, 67, 0.08);
  border: 1px solid var(--c-ochre);
  color: var(--c-ochre-dark);
  font-weight: 700;
  white-space: nowrap;
}

.member-name {
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--c-ink-900);
  letter-spacing: 0.06em;
}

.member-role-badge {
  display: inline-block;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--c-vermilion);
  border-bottom: 2px solid var(--c-gold);
  padding-bottom: 3px;
  margin: 4px 0;
  white-space: nowrap;
}

.member-desc {
  font-size: 0.85rem;
  color: var(--c-ink-700);
  line-height: 1.7;
}

/* ===================================================================
   FOOTER 底欄
   =================================================================== */
.site-footer {
  background-color: var(--c-ink-900);
  color: var(--c-paper-200);
  border-top: 4px solid var(--c-gold);
  position: relative;
  padding-top: clamp(40px, 6vw, 64px);
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: clamp(24px, 4vw, 44px);
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(235, 220, 200, 0.15);
}

.footer-brand-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.footer-brand-title {
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  color: var(--c-paper-100);
  letter-spacing: 0.08em;
}

.footer-brand-desc {
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--c-ink-200);
  text-align: justify;
}

.footer-col-title {
  font-size: 1rem;
  color: var(--c-gold-light);
  margin-bottom: 12px;
  letter-spacing: 0.08em;
  position: relative;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(194, 150, 61, 0.3);
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links-list a {
  font-size: 0.86rem;
  color: var(--c-ink-200);
  transition: var(--transition-smooth);
  display: inline-block;
}

.footer-links-list a:hover {
  color: var(--c-gold-light);
  transform: translateX(4px);
}

.footer-credits {
  font-size: 0.84rem;
  line-height: 1.8;
  color: var(--c-ink-200);
}

.footer-bottom {
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--c-ink-400);
  flex-wrap: wrap;
  gap: 12px;
}

.back-to-top-btn {
  background-color: rgba(235, 220, 200, 0.1);
  color: var(--c-gold-light);
  border: 1px solid var(--c-gold);
  padding: 6px 14px;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.back-to-top-btn:hover {
  background-color: var(--c-gold);
  color: var(--c-ink-900);
}

/* ===================================================================
   MODAL 彈出視窗
   =================================================================== */
.palace-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26, 23, 21, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: clamp(12px, 3vw, 24px);
}

.palace-modal.active {
  display: flex;
}

.modal-content-box {
  background-color: var(--c-paper-100);
  border: 2px solid var(--c-gold);
  max-width: 920px;
  width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  padding: clamp(18px, 3vw, 32px);
  position: relative;
  box-shadow: var(--shadow-deep);
  animation: modalScale 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalScale {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-close-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: 1px solid var(--c-paper-400);
  width: 32px;
  height: 32px;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--c-ink-900);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  z-index: 10;
}

.modal-close-btn:hover {
  background-color: var(--c-vermilion);
  color: var(--c-paper-100);
  border-color: var(--c-vermilion);
}

.modal-img-display {
  width: 100%;
  max-height: 65vh;
  object-fit: contain;
  margin: 14px 0;
  border: 1px solid var(--c-paper-300);
  background: #fff;
}

/* ===================================================================
   故宮泥金微塵畫布 (GOLD DUST AMBIENT PARTICLE CANVAS)
   =================================================================== */
.gold-dust-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
  opacity: 0.92;
}

/* 確保所有文字、內容框與卡片置於粒子之上，具備實體紙質背景保護閱讀 */
.palace-frame,
.overview-card,
.relic-card,
.exhibition-board-item,
.fortune-box,
.qin-sound-box,
.sticky-wall-box,
.curator-profile-card,
.event-card,
.epilogue-master-card,
.epilogue-manifesto-banner,
.top-announcement,
.site-header,
.site-footer {
  position: relative;
  z-index: 2;
}

.modal-overlay {
  z-index: 2000;
}

.site-header {
  z-index: 1000;
}

/* ===================================================================
   大區塊進場動畫系統 (PALACE SCROLL REVEALS & CRAFTED MICRO-ANIMATIONS)
   =================================================================== */
.reveal-on-scroll {
  opacity: 0;
  transform: perspective(1000px) rotateX(1.5deg) translateY(32px);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: perspective(1000px) rotateX(0deg) translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-36px);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(36px);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.96) translateY(20px);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-scale.is-visible {
  opacity: 1;
  transform: scale(1) translateY(0);
}

/* 標題金色筆觸分隔線舒展動效 (Section Divider Brushstroke Unfurl) */
.section-divider {
  position: relative;
  overflow: hidden;
  transform-origin: center;
}

.section-divider.is-visible {
  animation: dividerBrushUnfurl 0.85s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.section-divider.is-visible::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
  animation: dividerGleamSweep 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.35s 1 forwards;
}

@keyframes dividerBrushUnfurl {
  0% {
    transform: scaleX(0);
    opacity: 0;
  }
  100% {
    transform: scaleX(1);
    opacity: 1;
  }
}

@keyframes dividerGleamSweep {
  0% {
    left: -60%;
  }
  100% {
    left: 120%;
  }
}

/* 宣紙卷軸舒展質感 (Palace Frame Perspective Scroll Unfurl) */
.palace-frame {
  transition: transform 0.75s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.palace-frame.is-visible .palace-frame-corner-tr,
.palace-frame.is-visible .palace-frame-corner-bl,
.palace-frame.is-visible::before,
.palace-frame.is-visible::after {
  animation: cornerGlintFlash 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.2s 1 forwards;
}

@keyframes cornerGlintFlash {
  0% {
    filter: drop-shadow(0 0 0 transparent);
  }
  50% {
    filter: drop-shadow(0 0 3px rgba(223, 186, 104, 0.9));
  }
  100% {
    filter: drop-shadow(0 0 0 transparent);
  }
}

/* 印章入卷落印動態 (Imperial Seal Stamp Press Animation) */
.stamp-seal.is-stamped,
.art-category-seal.is-stamped {
  animation: sealStampPress 0.65s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes sealStampPress {
  0% {
    transform: scale(1.22) rotate(-4deg);
    opacity: 0.5;
  }
  65% {
    transform: scale(0.96) rotate(1deg);
    opacity: 1;
  }
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 1;
  }
}

/* 延遲階梯 */
.delay-100 { transition-delay: 0.12s; }
.delay-200 { transition-delay: 0.24s; }
.delay-300 { transition-delay: 0.36s; }

.overview-card:hover,
.visit-info-card:hover,
.venue-map-card:hover,
.fortune-box:hover,
.qin-sound-box:hover,
.sticky-wall-box:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 35px rgba(26, 23, 21, 0.14);
}

.event-card:hover {
  transform: translateY(-4px) translateX(4px);
  box-shadow: 0 12px 30px rgba(26, 23, 21, 0.12);
}

/* ===================================================================
   多螢幕響應式適配 (斷點全面覆蓋 1240px / 992px / 768px / 540px)
   =================================================================== */
@media (max-width: 1240px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    background-color: var(--c-paper-100);
    border-bottom: 2px solid var(--c-gold);
    flex-direction: column;
    padding: 20px 24px;
    box-shadow: var(--shadow-deep);
    align-items: flex-start;
    gap: 16px;
  }

  .site-nav.mobile-active {
    display: flex;
  }

  .nav-links {
    flex-direction: column;
    gap: 14px;
    width: 100%;
    align-items: flex-start;
  }

  .nav-actions {
    display: flex;
    flex-direction: row;
    gap: 10px;
    width: 100%;
    margin-top: 4px;
    padding-top: 14px;
    border-top: 1px solid var(--c-paper-400);
    flex-wrap: wrap;
  }

  .nav-actions .btn-palace {
    flex: 1;
    min-width: 140px;
    text-align: center;
    padding: 8px 12px;
    font-size: 0.85rem;
    height: auto;
  }

  .mobile-nav-toggle {
    display: block;
  }
}

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual-wrapper {
    max-width: 580px;
    margin: 0 auto;
    width: 100%;
  }

  .arts-nav-tabs {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 768px) {
  .header-container {
    min-height: 66px;
  }

  .site-nav {
    top: 66px;
  }

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

  .event-date-column {
    border-right: none;
    border-bottom: 2px solid var(--c-gold);
    flex-direction: row;
    justify-content: space-around;
    padding: 10px 14px;
  }

  .arts-tab-btn {
    padding: 8px 3px;
  }

  .hero-floating-standee {
    right: 4px;
    bottom: -10px;
  }

  .ceremony-stage {
    min-height: 480px;
  }

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

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

@media (max-width: 540px) {
  .brand-sub {
    display: none;
  }

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

  .hero-actions .btn-palace {
    width: 100%;
  }

  .sticky-form-row {
    flex-direction: column;
  }

  .sticky-form-row button {
    width: 100%;
  }

  .qin-notes-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 3px;
  }

  .qin-key-btn {
    padding: 8px 1px;
  }

  .artifact-with-namecard {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

/* =============================================================
   🏛️ 故宮宮廷頂級開場前導動畫 (Grand Opening Splash Overlay)
   ============================================================= */
.site-intro-overlay {
  position: fixed;
  inset: 0;
  z-index: 999999;
  background: radial-gradient(ellipse at 50% 45%, #231b17 0%, #120e0c 65%, #080605 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  opacity: 1;
  visibility: visible;
  transition: opacity 1.2s cubic-bezier(0.65, 0, 0.35, 1), transform 1.2s cubic-bezier(0.65, 0, 0.35, 1), visibility 1.2s ease;
}

/* 雙扉絲綢捲軸退場特效 */
.site-intro-overlay.is-dismissed {
  opacity: 0;
  transform: scale(1.08);
  filter: blur(12px);
  visibility: hidden;
  pointer-events: none;
}

/* 故宮雙層泥金典藏雲紋框 */
.intro-frame-border {
  position: absolute;
  inset: 24px;
  border: 1px solid rgba(223, 186, 104, 0.28);
  border-radius: 8px;
  pointer-events: none;
  box-shadow: inset 0 0 80px rgba(0, 0, 0, 0.8), 0 0 40px rgba(223, 186, 104, 0.1);
}

.intro-frame-border::after {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1px dashed rgba(223, 186, 104, 0.15);
  border-radius: 6px;
}

/* 四角迴紋裝飾 */
.intro-corner {
  position: absolute;
  width: 22px;
  height: 22px;
  border: 2px solid var(--c-gold);
  pointer-events: none;
}
.intro-corner-tl { top: 20px; left: 20px; border-right: none; border-bottom: none; }
.intro-corner-tr { top: 20px; right: 20px; border-left: none; border-bottom: none; }
.intro-corner-bl { bottom: 20px; left: 20px; border-right: none; border-top: none; }
.intro-corner-br { bottom: 20px; right: 20px; border-left: none; border-top: none; }

/* 右上角跳過按鈕 */
.intro-skip-btn {
  position: absolute;
  top: 36px;
  right: 36px;
  z-index: 10;
  background: rgba(22, 18, 15, 0.7);
  border: 1px solid rgba(223, 186, 104, 0.35);
  color: var(--c-paper-200);
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 0.82rem;
  letter-spacing: 0.15em;
  font-family: var(--f-serif);
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}
.intro-skip-btn:hover {
  background: rgba(223, 186, 104, 0.2);
  border-color: var(--c-gold);
  color: var(--c-gold-light);
  transform: translateY(-2px);
}

/* 中央內容主容器 */
.intro-content-container {
  position: relative;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px;
  max-width: 860px;
  width: 90vw;
}

/* 頂部宮廷特展徽章 */
.intro-top-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 22px;
  background: linear-gradient(135deg, rgba(184, 51, 42, 0.25) 0%, rgba(223, 186, 104, 0.15) 100%);
  border: 1px solid rgba(223, 186, 104, 0.4);
  border-radius: 999px;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(-15px);
  animation: introFadeDown 0.8s 0.2s cubic-bezier(0.2, 0.8, 0.4, 1) forwards;
}

.intro-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--c-gold);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--c-gold);
}

.intro-top-badge span {
  font-family: var(--f-serif);
  font-size: 0.85rem;
  color: var(--c-gold-light);
  letter-spacing: 0.25em;
  font-weight: 600;
}

/* 四藝浮水印徽章光環 (琴 ‧ 棋 ‧ 書 ‧ 畫) */
.intro-arts-orbs {
  display: flex;
  gap: clamp(12px, 3vw, 24px);
  margin-bottom: 28px;
  justify-content: center;
}

.intro-art-orb {
  width: clamp(48px, 9vw, 64px);
  height: clamp(48px, 9vw, 64px);
  border-radius: 50%;
  border: 1.5px solid rgba(223, 186, 104, 0.4);
  background: radial-gradient(circle, rgba(35, 27, 23, 0.9) 0%, rgba(15, 12, 10, 0.95) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-serif);
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  font-weight: 900;
  color: var(--c-gold);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5), inset 0 0 12px rgba(223, 186, 104, 0.15);
  opacity: 0;
  transform: scale(0.6) translateY(20px);
  animation: introOrbPop 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  transition: all 0.3s ease;
}

.intro-art-orb:nth-child(1) { animation-delay: 0.4s; }
.intro-art-orb:nth-child(2) { animation-delay: 0.6s; }
.intro-art-orb:nth-child(3) { animation-delay: 0.8s; }
.intro-art-orb:nth-child(4) { animation-delay: 1.0s; }

/* 巨幅書法主標題 */
.intro-title-group {
  position: relative;
  margin-bottom: 18px;
}

.intro-main-title {
  font-family: var(--f-serif);
  font-size: clamp(2.4rem, 6.5vw, 4.2rem);
  font-weight: 900;
  background: linear-gradient(135deg, #ffffff 0%, #faecd0 30%, #dfba68 70%, #b8832a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.28em;
  line-height: 1.25;
  margin: 0;
  opacity: 0;
  transform: scale(0.92);
  filter: blur(8px);
  animation: introTitleReveal 1.2s 1.1s cubic-bezier(0.2, 0.8, 0.4, 1) forwards;
  text-shadow: 0 0 40px rgba(223, 186, 104, 0.3);
}

.intro-sub-poetry {
  font-family: var(--f-serif);
  font-size: clamp(0.95rem, 2vw, 1.22rem);
  color: var(--c-paper-200);
  letter-spacing: 0.25em;
  margin-top: 14px;
  opacity: 0;
  transform: translateY(15px);
  animation: introFadeUp 0.9s 1.6s cubic-bezier(0.2, 0.8, 0.4, 1) forwards;
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
}

.intro-sub-poetry::before,
.intro-sub-poetry::after {
  content: '';
  width: clamp(20px, 5vw, 45px);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(223, 186, 104, 0.6));
}
.intro-sub-poetry::after {
  background: linear-gradient(90deg, rgba(223, 186, 104, 0.6), transparent);
}

/* 朱砂落印與入席按鈕區 */
.intro-action-zone {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 32px;
  opacity: 0;
  transform: translateY(20px);
  animation: introFadeUp 0.9s 2.0s cubic-bezier(0.2, 0.8, 0.4, 1) forwards;
}

/* 策展特陳 朱砂印章 */
.intro-cinnabar-seal {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, #b8332a 0%, #871c15 100%);
  border: 1.5px solid #dfba68;
  border-radius: 8px;
  color: #fff4d9;
  font-family: var(--f-serif);
  font-size: 0.82rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1.15;
  box-shadow: 0 4px 20px rgba(184, 51, 42, 0.5), 0 0 16px rgba(223, 186, 104, 0.3);
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
  transform: rotate(-4deg) scale(0.9);
  animation: sealSlamImpact 0.6s 2.2s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

/* 展開畫卷 啟幕按鈕 */
.intro-enter-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 38px;
  background: linear-gradient(135deg, #32251e 0%, #1c1511 100%);
  border: 1.5px solid var(--c-gold);
  border-radius: 999px;
  color: #fff9ee;
  font-family: var(--f-serif);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 25px rgba(223, 186, 104, 0.3);
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.4, 1);
}

.intro-enter-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  animation: introGlintSweep 3s infinite 2.5s;
}

.intro-enter-btn:hover {
  background: linear-gradient(135deg, #dfba68 0%, #b8832a 100%);
  color: #1a140f;
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 14px 40px rgba(223, 186, 104, 0.5);
}

/* 動畫 Keyframes */
@keyframes introFadeDown {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes introFadeUp {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes introOrbPop {
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes introTitleReveal {
  to {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
  }
}

@keyframes introGlintSweep {
  0% { left: -100%; }
  40%, 100% { left: 150%; }
}

@media (max-width: 600px) {
  .intro-arts-orbs {
    gap: 8px;
    margin-bottom: 18px;
  }
  .intro-skip-btn {
    top: 24px;
    right: 24px;
    padding: 4px 12px;
    font-size: 0.75rem;
  }
  .intro-action-zone {
    flex-direction: column;
    gap: 14px;
  }
  .intro-enter-btn {
    padding: 12px 28px;
    font-size: 0.95rem;
  }
}

/* ===================================================================
   留言板管理員聯繫列與版務處理列 (STICKY ADMIN CONTACT BAR)
   =================================================================== */
.sticky-admin-contact-bar {
  margin-top: 20px;
  padding: 14px 18px;
  background: rgba(245, 239, 230, 0.85);
  border: 1px dashed var(--c-gold);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  transition: var(--transition-smooth);
}

.sticky-admin-contact-bar:hover {
  background: rgba(255, 252, 245, 0.96);
  border-style: solid;
  box-shadow: 0 4px 14px rgba(184, 134, 11, 0.12);
}

.contact-bar-icon-wrap {
  width: 38px;
  height: 38px;
  background: var(--c-paper-200);
  border: 1px solid var(--c-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-bar-content {
  flex: 1;
  min-width: 240px;
}

.contact-bar-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.contact-bar-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--c-ochre-dark);
}

.contact-bar-badge {
  font-size: 0.68rem;
  padding: 1px 7px;
  background: var(--c-paper-300);
  color: var(--c-ink-800);
  border: 1px solid var(--c-paper-400);
  border-radius: 10px;
  letter-spacing: 0.05em;
}

.contact-bar-desc {
  font-size: 0.82rem;
  color: var(--c-ink-700);
  line-height: 1.45;
  margin: 0;
}

.contact-admin-ig-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  background: var(--c-paper-100);
  border: 1px solid var(--c-gold);
  color: var(--c-ochre-dark) !important;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 4px;
  text-decoration: none;
  box-shadow: 0 2px 6px rgba(184, 134, 11, 0.08);
  transition: var(--transition-smooth);
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

.contact-admin-ig-btn:hover {
  background: var(--c-paper-200);
  border-color: var(--c-vermilion);
  color: var(--c-vermilion) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(197, 43, 29, 0.12);
}

.contact-admin-ig-btn .ig-svg-icon {
  fill: var(--c-ochre-dark);
  opacity: 0.85;
  transition: fill 0.3s ease, transform 0.3s ease;
}

.contact-admin-ig-btn:hover .ig-svg-icon {
  fill: var(--c-vermilion);
  opacity: 1;
  transform: scale(1.08);
}

/* ===================================================================
   故宮典雅提示彈窗 (PALACE ALERT MODAL)
   =================================================================== */
.palace-alert-box {
  max-width: 480px;
  width: 90%;
  padding: 28px 24px 24px;
  text-align: center;
  border: 2px solid var(--c-gold);
  background: var(--c-paper-100);
  box-shadow: var(--shadow-deep);
  border-radius: 4px;
}

.palace-alert-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.palace-alert-icon-ring {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--c-paper-200);
  border: 2px solid var(--c-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 0 16px rgba(184, 134, 11, 0.18);
  animation: pulseIcon 2s infinite ease-in-out;
}

@keyframes pulseIcon {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

.palace-alert-icon-ring.ban-mode {
  border-color: var(--c-vermilion);
  background: #fdf2f0;
  box-shadow: 0 0 16px rgba(197, 43, 29, 0.25);
}

.palace-alert-title {
  font-family: var(--font-title);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--c-ochre-dark);
  margin: 0;
  letter-spacing: 0.05em;
}

.palace-alert-message {
  font-size: 0.95rem;
  color: var(--c-ink-800);
  line-height: 1.65;
  margin-bottom: 22px;
  background: var(--c-paper-200);
  padding: 14px 16px;
  border-left: 3px solid var(--c-gold);
  text-align: left;
  border-radius: 0 4px 4px 0;
}

.palace-alert-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 600px) {
  .sticky-admin-contact-bar {
    flex-direction: column;
    align-items: flex-start;
  }
  .contact-admin-ig-btn {
    width: 100%;
    justify-content: center;
  }
}