/*
 * showcase.css — 滑动变祖 · 独立展示页（v2：全画幅画面感）
 *
 * 自适应配色：JS 把 frame 写为 body 上的 --liang-* 令牌，整页表面/文字/
 * 边框/强调色实时重定向。低档暖象牙 + 深青铜金；高档（梁神/梁祖）炭黑 + 复古金。
 *
 * v2 变更：
 *  - 人物图去边框，全画幅铺满右侧约 2/3，左侧渐隐融合进页面色，突出画面感。
 *  - 深色态所有文字用 --liang-ink 亮色系，保证可读。
 *  - 「梁」字改为可自行输入字符（输入框驱动），全站渲染跟随。
 */

:root {
  /* 默认（frame=0）暖象牙浅壳 —— 全暖调，禁蓝禁紫 */
  --liang-strength: 0;
  --liang-page: rgb(239 236 226);
  --liang-bg-base: rgb(239 236 226 / 34%);
  --liang-layer-1: rgb(251 250 245 / 92%);
  --liang-layer-2: rgb(244 241 232 / 94%);
  --liang-layer-3: rgb(244 241 232 / 98%);
  --liang-sidebar: rgb(232 228 216 / 96%);
  --liang-ink: rgb(28 27 24);
  --liang-secondary: rgb(120 114 100);
  --liang-tertiary: rgb(150 143 127);
  --liang-border: rgb(28 27 24 / 14%);
  --liang-accent: rgb(150 108 46);
  --liang-accent-hover: rgb(128 91 38);
  --liang-hover: rgb(28 27 24 / 7%);
  --liang-portrait-opacity: 0.92;

  color-scheme: light;
}

body[data-liang-skin="on"] {
  color-scheme: dark;
  background: var(--liang-page);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  /* 防止外部注入（如平台预览工具栏对 body 追加的 padding）引发滚动条 */
  overflow: hidden;
  color: var(--liang-ink);
  font-family: "Noto Sans SC", system-ui, sans-serif;
  background: var(--liang-page);
  transition: background-color 220ms linear, color 200ms linear;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 低透明大背景：人物渐变层（消除生硬边缘的过渡底） ---------- */
.bg {
  position: fixed;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  background: var(--liang-page);
  transition: background-color 220ms linear;
}

.bg__portrait {
  position: absolute;
  top: 50%;
  right: 0;
  width: min(74vw, 1280px);
  height: 100vh;
  object-fit: cover;
  object-position: 50% 38%;
  transform: translateY(-50%);
  opacity: calc(var(--liang-portrait-opacity, 0.92) * 0.3);
  mask-image: linear-gradient(90deg, transparent 14%, rgb(0 0 0 / 45%) 46%, black 74%, black 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 14%, rgb(0 0 0 / 45%) 46%, black 74%, black 100%);
  transition: opacity 160ms linear;
}

/* ---------- 主舞台：左面板(文字/滑块) + 右侧全画幅人物图 ---------- */
.stage {
  /* 固定占满视口（顶/高由 JS 依据外部注入的 body padding 微调），整版一屏、无滚动条 */
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100dvh;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  min-height: 0;
  overflow: hidden;
  background: transparent;
  transition: color 200ms linear;
}

/* 左面板：顶线 + 大标题 + 滑块，全部压在页面色上，深色态自动亮字 */
.stage__panel {
  display: flex;
  flex-direction: column;
  min-height: 0; /* 允许子项收缩，保证一屏内放得下 */
  padding: clamp(14px, 2.2vh, 26px) clamp(18px, 2.6vw, 44px) clamp(14px, 2.2vh, 26px);
}

/* 顶线：品牌 + 字符输入 + 强度 */
.topline {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.brand__mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 50%;
  color: var(--liang-layer-1);
  background: var(--liang-accent);
  font-size: 19px;
  box-shadow: 0 6px 18px rgb(0 0 0 / 22%);
  transition: background-color 200ms linear, color 200ms linear;
}

.brand__name { font-size: 16px; }

.brand__sub {
  display: block;
  margin-top: 2px;
  color: var(--liang-tertiary);
  font-family: "Cormorant", "Noto Sans SC", serif;
  font-size: 9.5px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.topline__spacer { flex: 1; }

/* 可输入角色字符（替代「梁」） */
.char-control {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.char-control__label {
  color: var(--liang-tertiary);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.char-control__input {
  width: 1.5em;
  padding: 0 2px 3px;
  border: 0;
  border-bottom: 2px solid var(--liang-accent);
  border-radius: 0;
  outline: none;
  color: var(--liang-ink);
  caret-color: var(--liang-accent);
  background: transparent;
  font-family: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  font-size: 18px;
  line-height: 1;
  text-align: center;
  transition: border-color 200ms linear, color 200ms linear;
}

.char-control__input:focus-visible {
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--liang-accent) 30%, transparent);
}

.strength {
  color: var(--liang-secondary);
  font-family: "Cormorant", serif;
  font-size: 12px;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.strength b {
  color: var(--liang-accent);
  font-size: 16px;
  font-weight: 700;
  transition: color 200ms linear;
}

/* ---------- 中央文字区 ---------- */
.copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(10px, 2.2vh, 20px);
  flex: 1;
  min-height: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--liang-secondary);
  font-family: "Cormorant", serif;
  font-size: 12px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--liang-accent);
  transition: background-color 200ms linear;
}

.rank {
  margin: 0;
  font-family: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  /* vmin：按宽高较小者缩放，任意窗口都能装进一屏不溢出 */
  font-size: clamp(34px, 12vmin, 104px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--liang-ink);
  transition: color 200ms linear;
}

.rank .rank__glow {
  display: inline-block;
  color: var(--liang-accent);
  transition: color 200ms linear;
}

.sub {
  max-width: 34ch;
  margin: 0;
  color: var(--liang-secondary);
  font-size: clamp(11.5px, 1.5vh, 13.5px);
  line-height: 1.85;
}

.sub em {
  color: var(--liang-accent);
  font-style: normal;
  font-weight: 600;
  transition: color 200ms linear;
}

/* 六阶进度条 */
.pilgrimage {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}

.pilgrimage__track {
  position: relative;
  flex: 1;
  max-width: 240px;
  height: 3px;
  overflow: hidden;
  border-radius: 2px;
  background: var(--liang-border);
  transition: background-color 220ms linear;
}

.pilgrimage__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: calc(var(--liang-strength, 0) * 100%);
  background: var(--liang-accent);
  transition: background-color 200ms linear;
}

.pilgrimage__index {
  color: var(--liang-tertiary);
  font-family: "Cormorant", serif;
  font-size: 12px;
  letter-spacing: 0.14em;
}

/* ---------- 右侧全画幅人物图（无边框） ---------- */
.hero-image {
  position: relative;
  min-width: 0;
  /* 去掉 figure 默认上下 margin，画像上下贴紧窗口 */
  margin: 0;
  overflow: hidden;
  /* 背景透明：让画像边缘淡出后透见后方的半透明背景层 */
  background: transparent;
}

.hero-image__portrait {
  position: absolute;
  top: 0;
  left: 0;
  /* 加宽并右移：右侧约 1/4 被裁出画面 */
  width: 133.4%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 38%;
  display: block;
  /* 左侧强渐变淡出 + 四周羽化：边缘渐变透明，透见后方背景 */
  mask-image:
    linear-gradient(90deg, transparent 0%, black 24%, black 100%),
    radial-gradient(135% 140% at 50% 42%, black 44%, transparent 97%);
  -webkit-mask-image:
    linear-gradient(90deg, transparent 0%, black 24%, black 100%),
    radial-gradient(135% 140% at 50% 42%, black 44%, transparent 97%);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
  opacity: 0;
  transition: opacity 90ms linear;
  will-change: transform;
  /* 缓慢 Ken Burns 放大，强化画面感；减弱动效时关闭 */
  animation: kenburns 34s ease-out forwards;
}

.hero-image__portrait.is-visible { opacity: 1; }

@keyframes kenburns {
  from { transform: scale(1.02); }
  to   { transform: scale(1.1); }
}

/* 左侧极窄页面色过渡，仅用于与文字面板的分界线柔和衔接 */
.hero-image__scrim {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg,
    var(--liang-page) 0%,
    color-mix(in srgb, var(--liang-page) 40%, transparent) 4%,
    transparent 10%);
  transition: background-color 220ms linear;
}

/* 底部轻微压暗，衬托滑块区域 */
.hero-image::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background: linear-gradient(180deg, transparent 70%, rgb(0 0 0 / 18%) 100%);
}

/* ---------- 底部滑块停靠坞 ---------- */
.dock {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
  margin-top: clamp(6px, 1.6vh, 14px);
  padding: 11px 16px 9px;
  border: 1px solid var(--liang-border);
  border-radius: 18px;
  background: var(--liang-layer-1);
  box-shadow: 0 12px 40px rgb(20 16 8 / 16%);
  transition: background-color 220ms linear, border-color 220ms linear;
}

.dock__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  color: var(--liang-secondary);
  font-size: 11.5px;
  letter-spacing: 0.08em;
}

.dock__end {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  font-size: 13px;
  color: var(--liang-ink);
  transition: color 200ms linear;
}

.dock__hint {
  margin: 0;
  color: var(--liang-tertiary);
  font-size: 10.5px;
  letter-spacing: 0.04em;
}

/* ---- 滑块（复刻仓库，放大一号） ---- */
.liang-effort-control {
  --liang-control-accent: var(--liang-accent);
  --liang-control-rail: var(--liang-border);
  position: relative;
  display: flex;
  width: 100%;
  height: 40px;
  align-items: center;
  overflow: visible;
}

.liang-effort-control__ticks {
  position: absolute;
  z-index: 0;
  inset: 0 12px;
  pointer-events: none;
}

.liang-effort-control__ticks::before {
  position: absolute;
  top: 50%;
  right: 0;
  left: 0;
  height: 2px;
  border-radius: 2px;
  content: "";
  background: var(--liang-control-rail);
  transform: translateY(-50%);
  transition: background-color 220ms linear;
}

.liang-effort-control__tick {
  position: absolute;
  top: 50%;
  width: 1.5px;
  height: 11px;
  background: var(--liang-control-accent);
  opacity: 0.42;
  transform: translate(-50%, -50%);
  transition: background-color 200ms linear;
}

.liang-effort-control__tooltip {
  position: absolute;
  z-index: 5;
  bottom: calc(100% + 12px);
  left: calc(12px + (100% - 24px) * var(--liang-slider-ratio, 0));
  min-width: max-content;
  padding: 7px 12px;
  border: 1px solid var(--liang-border);
  border-radius: 9px;
  color: var(--liang-ink);
  background: var(--liang-layer-1);
  box-shadow: 0 8px 22px rgb(0 0 0 / 20%);
  font-family: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  pointer-events: none;
  transform: translateX(-50%);
  white-space: nowrap;
  transition: color 180ms linear, background-color 180ms linear;
}

.liang-effort-control__tooltip::after {
  position: absolute;
  top: 100%;
  left: 50%;
  width: 8px;
  height: 8px;
  content: "";
  background: inherit;
  transform: translate(-50%, -5px) rotate(45deg);
}

.liang-effort-control__range {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 40px;
  cursor: ew-resize;
  appearance: none;
  background: transparent;
  touch-action: pan-y;
}

.liang-effort-control__range::-webkit-slider-runnable-track {
  height: 2px;
  border-radius: 2px;
  background: transparent;
}

.liang-effort-control__range::-webkit-slider-thumb {
  width: 22px;
  height: 22px;
  margin-top: -10px;
  border: 2px solid color-mix(in srgb, var(--liang-control-accent) 78%, transparent);
  border-radius: 50%;
  appearance: none;
  background: radial-gradient(circle, var(--liang-control-accent) 0 3.5px, color-mix(in srgb, var(--liang-control-accent) 24%, var(--liang-layer-1)) 4px);
  box-shadow: 0 2px 8px rgb(0 0 0 / 26%);
  transition: border-color 200ms linear;
}

.liang-effort-control__range::-moz-range-track {
  height: 2px;
  background: transparent;
}

.liang-effort-control__range::-moz-range-progress {
  height: 2px;
  background: transparent;
}

.liang-effort-control__range::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: 2px solid color-mix(in srgb, var(--liang-control-accent) 78%, transparent);
  border-radius: 50%;
  background: color-mix(in srgb, var(--liang-control-accent) 26%, var(--liang-layer-1));
}

.liang-effort-control__range:focus-visible { outline: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  /* 移动端改用纵向堆叠，仍是整版一屏、无滚动条 */
  .stage {
    display: flex;
    flex-direction: column;
    grid-template-columns: 1fr;
  }

  /* 人物图作为顶部全宽画面带（约 4.4 成高） */
  .hero-image {
    order: -1;
    flex: 0 0 44vh;
    min-height: 0;
  }

  .stage__panel {
    flex: 1;
    min-height: 0;
  }

  .rank { font-size: clamp(40px, 12vmin, 92px); }
}

@media (max-width: 480px) {
  .stage__panel { padding: 14px 18px 16px; }
  .brand__sub { display: none; }
  .topline { flex-wrap: wrap; gap: 8px; }
  .char-control__label { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-image__portrait { animation: none; }
  body, .dock, .liang-effort-control__ticks::before {
    transition: none;
  }
}