/* ============================================
共鳴聽雨軒 - Listening Pavilion (雨軒版)
Prefix: lstrn-
RWD：1000 -> 320
============================================ */

:root {
  --primary-color: #dbe6ff;
  --secondary-color: rgba(219, 230, 255, 0.78);
  --accent-color: #9ad2ff;
  --accent-2: rgba(170, 120, 255, 0.55);

  --bg-0: #0f1424;
  --bg-1: #171d32;
  --bg-2: #262b49;

  --paper-bg: rgba(36, 41, 78, 0.90);
  --paper-bg-2: rgba(28, 32, 62, 0.70);
  --border-color: rgba(120, 180, 255, 0.28);

  --ink-1: rgba(160, 210, 255, 0.16);
  --ink-2: rgba(140, 110, 255, 0.12);

  --shadow-strong: 0 24px 80px rgba(0, 0, 0, 0.52);
  --shadow-soft: 0 18px 56px rgba(0, 0, 0, 0.35);

  --animation-fast: 0.2s;
  --animation-normal: 0.3s;
  --animation-slow: 0.6s;
}

/* 基礎 */
.lstrn-wrapper * { box-sizing: border-box; margin: 0; padding: 0; }

.lstrn-wrapper {
  min-height: 100vh;
  position: relative;
  overflow-x: clip;

  color: var(--primary-color);
  font-family: "Noto Serif TC", "Source Han Serif TC", serif;
  line-height: 1.65;

  /* 深夜雨色 + 墨暈 */
  background:
    radial-gradient(circle at 12% 18%, rgba(120, 170, 255, 0.16) 0%, transparent 42%),
    radial-gradient(circle at 82% 78%, rgba(165, 120, 255, 0.12) 0%, transparent 44%),
    radial-gradient(circle at 50% 55%, rgba(255, 255, 255, 0.04) 0%, transparent 55%),
    linear-gradient(145deg, var(--bg-0) 0%, var(--bg-1) 20%, var(--bg-2) 55%, #343a62 100%);
}

/* ============================================
背景層：雨簾 / 墨暈 / 水波
============================================ */

.lstrn-rain-curtain{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;

  /* 雨絲 + 一點霧 */
  background-image:
    repeating-linear-gradient(100deg,
      transparent 0 10px,
      rgba(150, 200, 255, 0.045) 10px 11px,
      transparent 11px 22px),
    repeating-linear-gradient(100deg,
      transparent 0 22px,
      rgba(190, 220, 255, 0.030) 22px 23px,
      transparent 23px 45px),
    radial-gradient(circle at 20% 25%, rgba(150, 200, 255, 0.06) 0%, transparent 46%),
    radial-gradient(circle at 85% 75%, rgba(160, 120, 255, 0.05) 0%, transparent 46%);
  opacity: 0.55;

  filter: blur(0.2px);
  transform: translateZ(0);
  will-change: background-position, opacity;

  animation: lstrn-rain-drift 18s linear infinite;
}

@keyframes lstrn-rain-drift{
  0% { background-position: 0 0, 0 0, 0 0, 0 0; }
  100% { background-position: 420px 520px, 240px 320px, 0 0, 0 0; }
}

/* 雨滴微粒（有也好、沒 JS 也不壞） */
.lstrn-raindrops{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.22;

  background:
    radial-gradient(circle at 18% 22%, rgba(180,220,255,0.18) 0 1px, transparent 2px),
    radial-gradient(circle at 42% 60%, rgba(180,220,255,0.16) 0 1px, transparent 2px),
    radial-gradient(circle at 68% 35%, rgba(180,220,255,0.14) 0 1px, transparent 2px),
    radial-gradient(circle at 82% 78%, rgba(180,220,255,0.12) 0 1px, transparent 2px);
  background-size: 280px 280px;

  filter: blur(0.25px);
}

/* 波光霧：像雨夜水面反光 */
.lstrn-wave-overlay{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;

  background:
    radial-gradient(closest-side at 22% 32%, rgba(120, 170, 255, 0.07), transparent 55%),
    radial-gradient(closest-side at 78% 70%, rgba(170, 120, 255, 0.06), transparent 58%),
    radial-gradient(circle at 50% 50%, rgba(255,255,255,0.03), transparent 60%);
  opacity: 0.35;
  transform: translateZ(0);
}

/* 若你有 ripple/wave JS，這兩層會用到；沒有也無害 */
.lstrn-wave-animation,
.lstrn-ripple-container{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

/* ============================================
主容器：亭（像「軒」的室內燈火）
============================================ */

.lstrn-pavilion-container{
  max-width: min(980px, 92vw);
  margin: 0 auto;
  padding: clamp(44px, 7vh, 72px) clamp(22px, 4.5vw, 62px);
  position: relative;
  z-index: 1;

  background:
    /* 室內暖意（非常淡，不要黃） */
    radial-gradient(circle at 50% -20%, rgba(255,255,255,0.06) 0%, transparent 55%),
    linear-gradient(180deg, rgba(52, 58, 112, 0.92) 0%, rgba(34, 39, 82, 0.90) 100%);
  border-radius: 16px;
  border: 1px solid rgba(150, 200, 255, 0.22);

  box-shadow:
    var(--shadow-strong),
    inset 0 1px 0 rgba(220, 240, 255, 0.12),
    inset 0 -1px 0 rgba(0, 0, 0, 0.18);

  backdrop-filter: blur(8px);
}

/* 邊角「墨暈」：像木窗邊的潮氣 */
.lstrn-pavilion-container::before{
  content:"";
  position:absolute;
  inset: -2px;
  border-radius: 18px;
  pointer-events:none;

  background:
    radial-gradient(circle at 8% 18%, var(--ink-1) 0%, transparent 42%),
    radial-gradient(circle at 92% 82%, var(--ink-2) 0%, transparent 44%),
    radial-gradient(circle at 50% 50%, rgba(255,255,255,0.03) 0%, transparent 62%);
  opacity: 0.7;

  filter: blur(1px);
  mask: linear-gradient(#000, transparent 120%);
}

/* ============================================
List：牌匾（更像「聽雨軒」）
============================================ */

.lstrn-pavilion-header{ text-align:center; position: relative; }

.lstrn-pavilion-title{
  font-size: clamp(2.35rem, 5vw, 3.1rem);
  color: #f2f7ff;
  letter-spacing: clamp(6px, 1vw, 12px);

  display: inline-block;
  padding: clamp(14px, 2vh, 18px) clamp(18px, 3vw, 30px);
  border-radius: 14px;

  /* 木牌 + 漆光（偏冷） */
  background:
    linear-gradient(180deg, rgba(62, 72, 124, 0.92) 0%, rgba(34, 40, 82, 0.86) 100%),
    radial-gradient(circle at 30% 20%, rgba(255,255,255,0.10), transparent 45%);
  border: 1px solid rgba(170, 210, 255, 0.28);

  box-shadow:
    0 20px 60px rgba(0,0,0,0.45),
    inset 0 1px 0 rgba(220,240,255,0.16);

  text-shadow:
    0 0 18px rgba(150, 200, 255, 0.25),
    0 10px 36px rgba(0,0,0,0.40);
}

/* 牌匾下「簷滴」 */
.lstrn-pavilion-title::after{
  content:"";
  display:block;
  height: 2px;
  margin: 14px auto 0;
  width: min(320px, 62vw);
  border-radius: 999px;

  background:
    linear-gradient(90deg,
      transparent 0%,
      rgba(150,200,255,0.55) 18%,
      rgba(220,240,255,0.70) 50%,
      rgba(150,200,255,0.55) 82%,
      transparent 100%);
  opacity: 0.55;
  filter: blur(0.2px);
}

.lstrn-pavilion-subtitle{
  font-size: clamp(1.05rem, 2.6vw, 1.38rem);
  color: rgba(228, 238, 255, 0.80);
  font-style: italic;
  letter-spacing: clamp(2px, 0.9vw, 7px);
  margin-top: clamp(16px, 2.2vh, 26px);

  display: inline-block;
  padding: clamp(10px, 1.8vh, 16px) clamp(18px, 4vw, 58px);
  border-radius: 999px;

  background:
    radial-gradient(circle at 25% 20%, rgba(255,255,255,0.08), transparent 48%),
    rgba(24, 28, 58, 0.55);
  border: 1px solid rgba(150, 200, 255, 0.18);
  box-shadow: inset 0 1px 0 rgba(200, 230, 255, 0.10);
}

.lstrn-rain-divider{
  height: 2px;
  margin: clamp(48px, 7vh, 80px) auto;
  max-width: min(720px, 82vw);
  border-radius: 999px;

  background:
    repeating-linear-gradient(90deg,
      transparent 0 16px,
      rgba(150,200,255,0.38) 16px 32px);
  box-shadow: 0 0 18px rgba(120, 180, 255, 0.18);
  opacity: 0;
  animation: lstrn-fade-in-up 0.9s ease-out 0.35s forwards;
}

@keyframes lstrn-fade-in-up{
  from{ opacity:0; transform: translateY(14px); }
  to{ opacity:1; transform: translateY(0); }
}

/* ============================================
List：引言（像宣紙）
============================================ */

.lstrn-intro-article{
  max-width: min(820px, 92vw);
  margin: 0 auto;

  border-radius: 16px;
  padding: clamp(28px, 4.6vh, 48px) clamp(22px, 4.2vw, 42px);

  /* 宣紙纖維 + 墨痕 */
  background:
    linear-gradient(180deg, rgba(255,255,255,0.96), rgba(252,252,255,0.92)),
    radial-gradient(circle at 18% 25%, rgba(150,200,255,0.06), transparent 52%),
    radial-gradient(circle at 85% 72%, rgba(170,120,255,0.05), transparent 55%);
  border: 1px solid rgba(100, 150, 255, 0.16);
  box-shadow:
    0 18px 54px rgba(0,0,0,0.20),
    inset 0 1px 0 rgba(255,255,255,0.85);

  position: relative;
  overflow: hidden;
}

/* 宣紙纖維噪點（純 CSS，不用圖片） */
.lstrn-intro-article::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg, rgba(20, 25, 50, 0.015) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, rgba(20, 25, 50, 0.010) 0 1px, transparent 1px 4px);
  opacity: 0.55;
  mix-blend-mode: multiply;
}

.lstrn-article-body{
  position: relative;
  z-index: 1;
  font-size: clamp(1.02rem, 2.1vw, 1.15rem);
  line-height: 1.9;
  color: #2b2f45;
}

.lstrn-article-body p{ margin-bottom: 1.6em; }
.lstrn-article-body strong{ color: #1e2238; font-weight: 700; }

.lstrn-article-body blockquote{
  border-left: 4px solid rgba(110, 170, 255, 0.8);
  margin: 2.2rem 0;
  padding: 1.25rem 1.25rem 1.25rem 1.5rem;
  background: rgba(150, 200, 255, 0.06);
  color: #45507a;
  border-radius: 0 14px 14px 0;
}

/* ============================================
List：卡片（像雨聲記錄牌）
============================================ */

.lstrn-resonance-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(clamp(300px, 30vw, 380px), 1fr));
  gap: clamp(26px, 4.5vh, 52px);
  margin-top: clamp(52px, 7vh, 92px);
}

.lstrn-resonance-card{
  position: relative;
  overflow: hidden;

  border-radius: 16px;
  padding: clamp(30px, 4.6vh, 52px) clamp(24px, 3.6vw, 46px);

  background:
    radial-gradient(circle at 24% 18%, rgba(160, 210, 255, 0.10), transparent 55%),
    radial-gradient(circle at 88% 82%, rgba(165, 120, 255, 0.09), transparent 58%),
    linear-gradient(180deg, rgba(44, 50, 98, 0.92) 0%, rgba(30, 34, 72, 0.90) 100%);

  border: 1px solid rgba(150, 200, 255, 0.22);
  box-shadow:
    var(--shadow-soft),
    inset 0 1px 0 rgba(210, 235, 255, 0.10);

  backdrop-filter: blur(8px);

  transition:
    transform var(--animation-normal) ease,
    border-color var(--animation-normal) ease,
    box-shadow var(--animation-normal) ease;
  transform: translateZ(0);
  will-change: transform, box-shadow, border-color;

  opacity: 0;
  animation: lstrn-card-reveal 0.75s ease-out forwards;
}

@keyframes lstrn-card-reveal{
  from{ opacity:0; transform: translateY(22px) translateZ(0); }
  to{ opacity:1; transform: translateY(0) translateZ(0); }
}

.lstrn-resonance-card:nth-child(1){ animation-delay:.08s; }
.lstrn-resonance-card:nth-child(2){ animation-delay:.16s; }
.lstrn-resonance-card:nth-child(3){ animation-delay:.24s; }
.lstrn-resonance-card:nth-child(4){ animation-delay:.32s; }
.lstrn-resonance-card:nth-child(5){ animation-delay:.40s; }

/* 卡片雨痕：像玻璃上的水跡 */
.lstrn-resonance-card::before{
  content:"";
  position:absolute;
  inset:-40px -40px auto -40px;
  height: 220px;
  pointer-events:none;

  background:
    repeating-linear-gradient(100deg,
      transparent 0 10px,
      rgba(220,240,255,0.07) 10px 11px,
      transparent 11px 20px);
  opacity: 0.30;
  filter: blur(0.3px);
  transform: rotate(-6deg);
}

.lstrn-resonance-card:hover{
  transform: translateY(-6px) translateZ(0);
  border-color: rgba(170, 220, 255, 0.40);
  box-shadow:
    0 22px 70px rgba(0,0,0,0.45),
    inset 0 1px 0 rgba(230, 250, 255, 0.14);
}

.lstrn-resonance-card:active{
  transform: translateY(-3px) scale(0.99) translateZ(0);
}

/* List：標題 */
.lstrn-resonance-title{
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
  color: #f0f7ff;
  margin-bottom: clamp(18px, 2.8vh, 28px);
  padding-bottom: clamp(12px, 2vh, 18px);
  border-bottom: 1px solid rgba(170, 220, 255, 0.22);
  text-shadow: 0 10px 30px rgba(0,0,0,0.40);
}

.lstrn-resonance-title a{
  color: inherit;
  text-decoration: none;
  display: block;
  transition: color var(--animation-fast) ease;
}
.lstrn-resonance-title a:hover{ color: #ffffff; }

/* List：摘要 */
.lstrn-resonance-excerpt{
  color: rgba(225, 235, 255, 0.78);
  font-size: clamp(0.98rem, 2vw, 1.12rem);
  line-height: 1.78;
  margin-bottom: clamp(22px, 3vh, 34px);

  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* tags：卡片 */
.lstrn-frequency-tags--card{
  display:flex;
  gap: clamp(8px, 1vw, 14px);
  margin-top: clamp(14px, 2vh, 22px);
  flex-wrap: wrap;
}

.lstrn-frequency-tag--card{
  padding: clamp(6px, 1vh, 8px) clamp(12px, 2vw, 18px);
  border-radius: 999px;
  font-size: clamp(0.82rem, 1.5vw, 0.95rem);

  color: rgba(240, 248, 255, 0.88);
  background:
    radial-gradient(circle at 30% 20%, rgba(255,255,255,0.08), transparent 45%),
    linear-gradient(145deg, rgba(110, 170, 255, 0.16) 0%, rgba(170, 120, 255, 0.12) 100%);
  border: 1px solid rgba(160, 210, 255, 0.24);

  backdrop-filter: blur(4px);
  transition: transform var(--animation-fast) ease, border-color var(--animation-fast) ease;
}
.lstrn-frequency-tag--card:active{ transform: scale(0.98); }

/* 日期 */
.lstrn-resonance-date{
  position:absolute;
  bottom: clamp(18px, 3vh, 28px);
  right: clamp(18px, 3vw, 28px);

  font-size: clamp(0.9rem, 1.5vw, 1rem);
  color: rgba(210, 222, 255, 0.62);

  padding: clamp(7px, 1vh, 9px) clamp(12px, 2vw, 18px);
  border-radius: 999px;

  background: rgba(18, 22, 48, 0.45);
  border: 1px solid rgba(150, 200, 255, 0.16);
}

/* 卡片底部波線：像水面一閃 */
.lstrn-card-progress{
  position:absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;

  background:
    linear-gradient(90deg,
      rgba(140, 210, 255, 0.30) 0%,
      rgba(200, 240, 255, 0.72) 50%,
      rgba(140, 210, 255, 0.30) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.8s ease-out;

  filter: blur(0.15px);
}
.lstrn-resonance-card:hover .lstrn-card-progress{ transform: scaleX(1); }

/* 空狀態 */
.lstrn-empty-state{
  text-align:center;
  padding: clamp(80px, 10vh, 140px) clamp(24px, 5vw, 48px);
  color: rgba(220, 232, 255, 0.62);
  font-style: italic;

  background:
    radial-gradient(circle at 18% 22%, rgba(150,200,255,0.08), transparent 56%),
    radial-gradient(circle at 85% 72%, rgba(170,120,255,0.06), transparent 58%),
    rgba(26, 30, 60, 0.58);

  border-radius: 16px;
  border: 1px dashed rgba(160, 210, 255, 0.32);
  margin: clamp(70px, 9vh, 110px) auto;
  max-width: min(820px, 92vw);
  backdrop-filter: blur(10px);

  opacity: 0;
  animation: lstrn-fade-in 0.9s ease-out 0.2s forwards;
}
@keyframes lstrn-fade-in{ from{opacity:0} to{opacity:1} }

/* ============================================
Loading（合法 CSS）
============================================ */

.lstrn-loading-indicator{
  position: fixed;
  inset: 0;
  background: rgba(12, 16, 30, 0.92);
  display:flex;
  align-items:center;
  justify-content:center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.5s ease;
}
.lstrn-loading-indicator.lstrn-loading-hidden{
  opacity: 0;
  pointer-events: none;
}
.lstrn-loading-dots{ display:flex; gap: 12px; }
.lstrn-loading-dots span{
  width: 18px; height: 18px; border-radius: 50%;
  background: rgba(160, 220, 255, 0.85);
  box-shadow: 0 0 16px rgba(150, 200, 255, 0.20);
  animation: lstrn-loading-bounce 1.4s ease-in-out infinite;
}
.lstrn-loading-dots span:nth-child(1){ animation-delay:-0.32s; }
.lstrn-loading-dots span:nth-child(2){ animation-delay:-0.16s; }
@keyframes lstrn-loading-bounce{
  0%,80%,100%{ transform: scale(0); }
  40%{ transform: scale(1); }
}

/* ============================================
Single：文章頁（更像聽雨軒）
============================================ */

.lstrn-single-wrapper{ padding: clamp(34px, 6vh, 80px) 0; }

.lstrn-article-header{
  margin-bottom: clamp(34px, 5vh, 56px);
  text-align:center;
  position: relative;
}

/* ✅ 標題：像牌匾（修清晰度 + 增加「簷下光」） */
.lstrn-article-title{
  font-size: clamp(2rem, 5.2vw, 2.9rem);
  color: #f4f8ff;
  line-height: 1.25;
  letter-spacing: 0.6px;

  display: inline-block;
  padding: clamp(14px, 2vh, 18px) clamp(18px, 3vw, 28px);
  border-radius: 16px;

  background:
    radial-gradient(circle at 30% 20%, rgba(255,255,255,0.10), transparent 46%),
    linear-gradient(180deg, rgba(64, 74, 126, 0.92) 0%, rgba(34, 40, 82, 0.86) 100%);
  border: 1px solid rgba(170, 220, 255, 0.26);

  box-shadow:
    0 22px 70px rgba(0,0,0,0.45),
    inset 0 1px 0 rgba(230,250,255,0.14);

  text-shadow:
    0 0 18px rgba(150, 200, 255, 0.25),
    0 12px 36px rgba(0,0,0,0.42);
}

/* 標題下光線（像簷滴、像雨聲的線） */
.lstrn-article-title::after{
  content:"";
  display:block;
  height: 2px;
  margin: 14px auto 0;
  width: min(360px, 70vw);
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(200,240,255,0.75), transparent);
  opacity: 0.55;
  filter: blur(0.15px);
}

.lstrn-article-subtitle{
  font-size: clamp(1.06rem, 2.6vw, 1.35rem);
  color: rgba(228, 238, 255, 0.82);
  font-style: italic;
  margin-top: clamp(16px, 2.2vh, 22px);
  letter-spacing: clamp(2px, 0.8vw, 6px);
}

/* meta */
.lstrn-article-meta{
  margin-top: clamp(14px, 2vh, 18px);
  display:flex;
  justify-content:center;
  gap: 10px;
  flex-wrap: wrap;
}

.lstrn-meta-item{
  font-family: "Noto Sans TC", sans-serif;
  font-size: 0.95rem;
  color: rgba(225, 236, 255, 0.78);
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(18, 22, 48, 0.42);
  border: 1px solid rgba(150, 200, 255, 0.14);
}

/* Single：tags */
.lstrn-frequency-section{ margin: 34px 0 18px; text-align:center; }

.lstrn-frequency-tags--article{
  display:flex;
  justify-content:center;
  gap: clamp(8px, 1.5vw, 12px);
  flex-wrap: wrap;
}

.lstrn-frequency-tag--article{
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 0.95rem;

  color: rgba(240, 248, 255, 0.88);
  background:
    radial-gradient(circle at 30% 20%, rgba(255,255,255,0.08), transparent 46%),
    linear-gradient(145deg, rgba(110, 170, 255, 0.14) 0%, rgba(170, 120, 255, 0.10) 100%);
  border: 1px solid rgba(160, 210, 255, 0.20);
  backdrop-filter: blur(4px);
}

/* Single：正文（宣紙更強） */
.lstrn-resonance-article{
  max-width: min(820px, 92vw);
  margin: 0 auto;
  position: relative;
  z-index: 1;
  overflow: hidden;

  border-radius: 18px;
  padding: clamp(42px, 7vh, 80px) clamp(22px, 4.5vw, 60px);

  background:
    linear-gradient(180deg, rgba(255,255,255,0.96), rgba(252,252,255,0.92)),
    radial-gradient(circle at 18% 25%, rgba(150,200,255,0.06), transparent 55%),
    radial-gradient(circle at 85% 72%, rgba(170,120,255,0.05), transparent 58%);
  border: 1px solid rgba(100, 150, 255, 0.16);
  box-shadow:
    0 22px 76px rgba(0,0,0,0.26),
    inset 0 1px 0 rgba(255,255,255,0.90);
}

/* 宣紙纖維噪點 */
.lstrn-resonance-article::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg, rgba(20, 25, 50, 0.015) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, rgba(20, 25, 50, 0.010) 0 1px, transparent 1px 4px);
  opacity: 0.55;
  mix-blend-mode: multiply;
}

.lstrn-article-body{
  position: relative;
  z-index: 1;
  font-size: clamp(1.03rem, 2.2vw, 1.20rem);
  line-height: 1.9;
  color: #2b2f45;
}

.lstrn-article-body p{ margin-bottom: 1.65em; }
.lstrn-article-body ul,
.lstrn-article-body ol{ margin: 1.6rem 0; padding-left: 1.6rem; }
.lstrn-article-body li{ margin-bottom: 0.75rem; }
.lstrn-article-body strong{ color:#1f2440; font-weight: 700; }

.lstrn-article-body blockquote{
  border-left: 4px solid rgba(110, 170, 255, 0.80);
  padding: 1.3rem 1.3rem 1.3rem 1.5rem;
  margin: 2.2rem 0;
  font-style: italic;
  color: #4a5680;
  background: rgba(150, 200, 255, 0.06);
  border-radius: 0 14px 14px 0;
}

/* Single：分析區 / 對話區 / 導航（維持穩重，不搶宣紙） */
.lstrn-frequency-analysis{
  background: rgba(26, 30, 60, 0.62);
  border: 1px solid rgba(150, 200, 255, 0.16);
  border-radius: 16px;
  padding: clamp(26px, 4vh, 40px);
  margin: 54px 0;
  backdrop-filter: blur(10px);
}

.lstrn-analysis-title{
  color:#eef6ff;
  margin-bottom: 22px;
  font-size: 1.35rem;
  text-align:center;
  text-shadow: 0 12px 36px rgba(0,0,0,0.30);
}

.lstrn-analysis-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 26px;
}

.lstrn-analysis-item h4{
  color: rgba(225, 236, 255, 0.85);
  margin-bottom: 12px;
  font-size: 1.05rem;
  margin-top: 25px;
}

/* ✅ 新增：洞察深度 meta（理性呈現 + RWD 安全） */
.lstrn-analysis-meta{
  display:flex;
  gap:10px;
  align-items:baseline;
  justify-content:flex-start;
  margin: 6px 0 10px;
  flex-wrap: wrap; /* 防窄螢幕擠爆 */
}

.lstrn-analysis-score{
  color: rgba(238,246,255,0.86);
  font-weight: 700;
  letter-spacing: .5px;
  white-space: nowrap; /* 分數保持一行 */
  font-family: "Noto Sans TC", sans-serif;
}

.lstrn-analysis-level{
  color: rgba(200,232,255,0.70);
  font-size: .95rem;
  line-height: 1.45;
  overflow-wrap: anywhere; /* 長字串可斷行 */
  font-family: "Noto Sans TC", sans-serif;
}

.lstrn-depth-meter{
  height: 18px;
  background: rgba(14, 18, 38, 0.50);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 12px;
  border: 1px solid rgba(150, 200, 255, 0.14);
}
.lstrn-depth-fill{
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, rgba(110,170,255,0.78), rgba(170,120,255,0.62));
  border-radius: 999px;
  transition: width 1s ease-in-out;
}

.lstrn-dialogue-section{
  background: rgba(30, 34, 72, 0.62);
  border: 1px solid rgba(150, 200, 255, 0.14);
  border-radius: 16px;
  padding: clamp(24px, 4vh, 40px);
  margin: 50px 0;
  backdrop-filter: blur(10px);
}
.lstrn-dialogue-title{
  color:#eef6ff;
  margin-bottom: 22px;
  font-size: 1.35rem;
  text-align:center;
}
.lstrn-dialogue-item{
  margin-bottom: 18px;
  padding: 18px;
  background: rgba(18, 22, 48, 0.38);
  border-radius: 14px;
  border-left: 3px solid rgba(160, 210, 255, 0.40);
}
.lstrn-dialogue-question{
  color: rgba(160, 220, 255, 0.92);
  font-weight: 700;
  margin-bottom: 10px;
  font-size: 1.02rem;
}
.lstrn-dialogue-answer{
  color: rgba(238, 246, 255, 0.78);
  line-height: 1.7;
}

.lstrn-article-navigation{
  display:flex;
  justify-content: space-between;
  gap: 14px;
  margin: 46px 0 0;
  padding: 18px 0;
  border-top: 1px dashed rgba(160, 210, 255, 0.18);
  border-bottom: 1px dashed rgba(160, 210, 255, 0.18);
}

.lstrn-nav-prev,
.lstrn-nav-next{
  padding: 12px 18px;
  border-radius: 14px;
  color: rgba(238, 246, 255, 0.78);
  text-decoration:none;

  background: rgba(18, 22, 48, 0.42);
  border: 1px solid rgba(150, 200, 255, 0.14);

  transition: transform var(--animation-fast) ease, border-color var(--animation-fast) ease, background var(--animation-fast) ease;
  max-width: 48%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.lstrn-nav-prev:hover,
.lstrn-nav-next:hover{
  border-color: rgba(170, 220, 255, 0.32);
  background: rgba(110, 170, 255, 0.10);
  color:#ffffff;
  transform: translateY(-2px);
}

/* ============================================
RWD：1000 -> 320
============================================ */

@media (max-width: 1000px){
  .lstrn-pavilion-container{
    max-width: min(940px, 94vw);
    padding: clamp(40px, 6vh, 66px) clamp(18px, 4vw, 46px);
    border-radius: 16px;
  }
  .lstrn-resonance-grid{
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: clamp(22px, 3.8vh, 40px);
  }
}

@media (max-width: 768px){
  .lstrn-pavilion-container{ padding: 34px 18px; }
  .lstrn-pavilion-subtitle{ padding: 12px 16px; letter-spacing: 3px; }
  .lstrn-resonance-card{ padding: 28px 20px; }
  .lstrn-article-navigation{ flex-direction: column; }
  .lstrn-nav-prev, .lstrn-nav-next{ max-width: 100%; text-align:center; }
  .lstrn-analysis-grid{ grid-template-columns: 1fr; }
}

@media (max-width: 480px){
  .lstrn-pavilion-container{ padding: 28px 14px; }
  .lstrn-resonance-title{ font-size: 1.35rem; }
  .lstrn-article-title{ padding: 12px 14px; border-radius: 14px; }
  .lstrn-meta-item{ font-size: 0.9rem; padding: 7px 10px; }
  .lstrn-resonance-article{ padding: 34px 16px; border-radius: 16px; }
}

@media (max-width: 360px){
  .lstrn-pavilion-title{ letter-spacing: 5px; }
  .lstrn-resonance-card{ padding: 24px 16px; }
  .lstrn-frequency-tag--card,
  .lstrn-frequency-tag--article{ padding: 6px 12px; font-size: 0.9rem; }

  /* ✅ 360↓：洞察 meta 直排，避免擠在同一行 */
  .lstrn-analysis-meta{
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .lstrn-analysis-level{ font-size: .90rem; }
}

@media (max-width: 320px){
  .lstrn-pavilion-container{ padding: 24px 12px; }
  .lstrn-article-title{ font-size: 1.85rem; }

  /* ✅ 320↓：再收斂一點 */
  .lstrn-analysis-level{ font-size: .88rem; }
}

/* ✅ 520↓（介於 768 與 480 之間）補一個細調，避免 meta 太擠 */
@media (max-width: 520px){
  .lstrn-analysis-meta{ gap: 8px; }
  .lstrn-analysis-level{ font-size: .92rem; }
}

/* ============================================
減少動態：無障礙
============================================ */
@media (prefers-reduced-motion: reduce){
  .lstrn-rain-curtain{ animation: none; }
  .lstrn-resonance-card{ animation: none; opacity: 1; }
  .lstrn-card-progress{ transition: none; }
}

/* ============================================
頻率圖：內在共鳴頻率分布（雨滴密度圖）
- 桌機：密度散落 + 平均強度決定亮度（JS 寫入 --d-alpha / --d-glow）
- 手機：一欄一欄往下滴（.lstrn-chart-grid--fall）
RWD：1000 -> 320
============================================ */

.lstrn-frequency-chart{
  margin-top: clamp(40px, 6vh, 70px);
  padding: clamp(20px, 4vh, 34px);
  border-radius: 16px;
  background: rgba(18, 22, 48, 0.40);
  border: 1px solid rgba(160, 210, 255, 0.16);
  backdrop-filter: blur(10px);
}

.lstrn-chart-title{
  text-align: center;
  font-size: clamp(1.08rem, 2.6vw, 1.25rem);
  color: rgba(238, 246, 255, 0.88);
  letter-spacing: 2px;
  margin-bottom: 18px;
  text-shadow: 0 12px 36px rgba(0,0,0,0.30);
}

.lstrn-chart-grid--rain{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(160px, 42vw, 220px), 1fr));
  gap: 16px;
}

.lstrn-chart-grid--rain.lstrn-chart-grid--fall{
  grid-template-columns: 1fr;
  gap: 12px;
}

.lstrn-chart-col{
  border-radius: 14px;
  padding: 14px 14px 16px;
  background: rgba(30, 34, 72, 0.45);
  border: 1px solid rgba(150, 200, 255, 0.12);
  overflow: hidden;
  position: relative;
}

.lstrn-chart-col::before{
  content:"";
  position:absolute;
  inset:-40px -40px auto -40px;
  height: 140px;
  background:
    repeating-linear-gradient(100deg,
      transparent 0 10px,
      rgba(220,240,255,0.06) 10px 11px,
      transparent 11px 20px);
  opacity: 0.18;
  transform: rotate(-6deg);
  pointer-events:none;
  filter: blur(0.25px);
}

.lstrn-chart-col-head{
  display:flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}

.lstrn-chart-label{
  color: rgba(240, 248, 255, 0.90);
  font-size: 1rem;
  letter-spacing: 1px;

  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-clamp: 2;

  white-space: normal;
  max-width: 70%;
}

.lstrn-chart-meta{
  display:flex;
  align-items:center;
  gap: 8px;
  flex: 0 0 auto;
}

.lstrn-chart-count{
  color: rgba(200, 232, 255, 0.70);
  font-family: "Noto Sans TC", sans-serif;
  font-size: 0.95rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(18, 22, 48, 0.36);
  border: 1px solid rgba(160, 210, 255, 0.12);
}

.lstrn-chart-avg{
  color: rgba(238, 246, 255, 0.78);
  font-family: "Noto Sans TC", sans-serif;
  font-size: 0.92rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(18, 22, 48, 0.26);
  border: 1px solid rgba(160, 210, 255, 0.10);
}

.lstrn-chart-rain{
  display: grid;
  grid-template-columns: repeat(var(--max-cols, 12), var(--drop-size, 7px));
  gap: var(--drop-gap, 5px);
  align-content: start;
  min-height: 74px;
  padding-top: 6px;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.lstrn-drop{
  width: var(--d-size, 7px);
  height: calc(var(--d-size, 7px) * 1.35);
  border-radius: 999px;

  background: rgba(200, 240, 255, var(--d-alpha, 0.45));
  filter: blur(var(--d-blur, 0.4px));
  transform: translateY(var(--d-y, 0px));

  box-shadow:
    0 0 calc(10px * var(--d-glow, 0.25)) rgba(170, 220, 255, 0.25),
    0 0 calc(18px * var(--d-glow, 0.25)) rgba(170, 120, 255, 0.12);

  animation: lstrn-drop-glint 2.2s ease-in-out infinite;
  animation-delay: var(--d-delay, 0s);
}

@keyframes lstrn-drop-glint{
  0%, 100% { opacity: 0.75; }
  50% { opacity: 1; }
}

.lstrn-chart-more{
  grid-column: 1 / -1;
  margin-top: 8px;
  color: rgba(200, 232, 255, 0.62);
  font-family: "Noto Sans TC", sans-serif;
  font-size: 0.9rem;
}

/* 手機：一欄一欄往下滴 */
.lstrn-chart-grid--fall .lstrn-chart-col{
  padding: 14px 14px 12px;
}

.lstrn-chart-grid--fall .lstrn-chart-rain{
  display: block;
  min-height: 92px;
  padding-top: 2px;
}

.lstrn-chart-grid--fall .lstrn-drop{
  display: inline-block;
  margin-right: 8px;
  margin-top: 10px;

  transform: translateY(var(--d-start, -18px));
  animation: lstrn-drop-fall 1.35s ease-in-out infinite;
  animation-delay: var(--d-delay, 0s);
}

@keyframes lstrn-drop-fall{
  0%   { transform: translateY(var(--d-start, -18px)); opacity: 0.0; }
  12%  { opacity: 1.0; }
  70%  { transform: translateY(22px); opacity: 0.95; }
  100% { transform: translateY(30px); opacity: 0.0; }
}

/* 無資料 */
.lstrn-chart-empty{ text-align:center; padding: 18px 10px; }
.lstrn-chart-empty-title{ color: rgba(238,246,255,0.82); margin-bottom: 6px; }
.lstrn-chart-empty-sub{ color: rgba(200,232,255,0.62); font-size: 0.95rem; line-height: 1.6; }

/* RWD */
@media (max-width: 1000px){
  .lstrn-chart-grid--rain{ gap: 14px; }
}
@media (max-width: 768px){
  .lstrn-frequency-chart{ padding: 18px; }
  .lstrn-chart-grid--rain{
    grid-template-columns: repeat(auto-fit, minmax(clamp(170px, 70vw, 260px), 1fr));
  }
}
@media (max-width: 520px){
  .lstrn-chart-grid--rain{ grid-template-columns: 1fr; }
  .lstrn-chart-label{ max-width: 74%; }
}
@media (max-width: 360px){
  .lstrn-frequency-chart{ padding: 16px 14px; }
  .lstrn-chart-col{ padding: 12px 12px 10px; }
  .lstrn-chart-label{ font-size: 0.98rem; }
}
@media (max-width: 320px){
  .lstrn-chart-avg,
  .lstrn-chart-count{ padding: 4px 8px; }
}

/* ============================================
洞察深度：短詞 + tooltip（理性呈現）
RWD：1000 -> 320
============================================ */

.lstrn-analysis-level{
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.lstrn-level-short{
  color: rgba(200,232,255,0.75);
  font-family: "Noto Sans TC", sans-serif;
  letter-spacing: 1px;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(18, 22, 48, 0.28);
  border: 1px solid rgba(160, 210, 255, 0.12);
}

/* tooltip 容器 */
.lstrn-tooltip{
  position: relative;
  display: inline-flex;
  align-items: center;
  outline: none;
}

.lstrn-tooltip-icon{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  font-size: 0.95rem;
  line-height: 1;

  color: rgba(238,246,255,0.78);
  background: rgba(18, 22, 48, 0.30);
  border: 1px solid rgba(160, 210, 255, 0.14);
  cursor: help;

  transition: transform var(--animation-fast) ease, border-color var(--animation-fast) ease, background var(--animation-fast) ease;
}

.lstrn-tooltip:hover .lstrn-tooltip-icon,
.lstrn-tooltip:focus .lstrn-tooltip-icon{
  border-color: rgba(170, 220, 255, 0.32);
  background: rgba(110, 170, 255, 0.10);
  transform: translateY(-1px);
}

/* tooltip 面板 */
.lstrn-tooltip-panel{
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  transform: translateX(-50%);

  width: min(420px, 72vw);
  padding: 12px 14px;
  border-radius: 14px;

  background: rgba(12, 16, 30, 0.92);
  border: 1px solid rgba(160, 210, 255, 0.18);
  box-shadow: 0 18px 56px rgba(0,0,0,0.50);

  color: rgba(238,246,255,0.86);
  font-family: "Noto Sans TC", sans-serif;
  font-size: 0.92rem;
  line-height: 1.55;

  opacity: 0;
  visibility: hidden;
  pointer-events: none;

  transition: opacity var(--animation-fast) ease, transform var(--animation-fast) ease, visibility var(--animation-fast) ease;
  transform-origin: bottom center;
}

/* hover / focus 顯示 */
.lstrn-tooltip:hover .lstrn-tooltip-panel,
.lstrn-tooltip:focus .lstrn-tooltip-panel{
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-2px);
}

/* 小箭頭 */
.lstrn-tooltip-panel::after{
  content:"";
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translateX(-50%);
  width: 10px;
  height: 10px;
  background: rgba(12, 16, 30, 0.92);
  border-left: 1px solid rgba(160, 210, 255, 0.18);
  border-bottom: 1px solid rgba(160, 210, 255, 0.18);
  transform: translateX(-50%) rotate(45deg);
}

/* <= 520：讓 tooltip 面板更穩 */
@media (max-width: 520px){
  .lstrn-tooltip-panel{
    width: min(520px, 86vw);
    font-size: 0.9rem;
  }
}

/* <= 360：避免面板太靠上，改為靠左偏移一點 */
@media (max-width: 360px){
  .lstrn-tooltip-panel{
    left: 0;
    transform: translateX(0);
    width: 88vw;
  }
  .lstrn-tooltip:hover .lstrn-tooltip-panel,
  .lstrn-tooltip:focus .lstrn-tooltip-panel{
    transform: translateX(0) translateY(-2px);
  }
  .lstrn-tooltip-panel::after{
    left: 14px;
    transform: rotate(45deg);
  }
}