/* 劲乐团 Web 版 - 样式 */
:root {
  --bg: #050a18;
  --bg-soft: #0a1430;
  --panel: rgba(14, 24, 52, 0.72);
  --line: rgba(120, 170, 255, 0.18);
  --text: #e8f2ff;
  --muted: #7f97c4;
  --accent: #5ad2ff;
  --accent-2: #7affc4;
  --gold: #ffe66d;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  overflow: hidden;
}

body {
  background:
    radial-gradient(1200px 700px at 50% -10%, #10214a 0%, transparent 60%),
    radial-gradient(900px 600px at 100% 100%, #132043 0%, transparent 55%),
    var(--bg);
}

.app-shell {
  position: relative;
  width: 100%;
  height: 100%;
}

.screen {
  position: absolute;
  inset: 0;
  display: none;
  opacity: 0;
}

.screen.is-active {
  display: flex;
  animation: fadeIn 0.32s ease forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

/* ==================== 选曲界面 ==================== */

.song-screen {
  flex-direction: column;
  padding: 42px 56px;
  gap: 26px;
}

.song-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: linear-gradient(140deg, var(--accent), #8a7bff);
  color: #04101f;
  font-weight: 900;
  font-size: 22px;
  box-shadow: 0 12px 34px rgba(90, 210, 255, 0.32);
}

.logo small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 3px;
}

.logo h1 {
  margin: 2px 0 0;
  font-size: 27px;
  letter-spacing: 1px;
}

.song-tagline {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.song-tagline.hotkeys kbd {
  min-width: 0;
  padding: 2px 7px;
  font-size: 11px;
  border-radius: 5px;
}

/* 顶部右侧：选曲按钮 + 音源状态 */
.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ==================== 聚焦选曲（osu! 风格） ==================== */

/* 选曲检索框 */
.focus-search {
  position: relative;
  width: 340px;
  max-width: 90%;
  margin: 0 auto 12px;
}
.focus-search input {
  width: 100%;
  padding: 9px 34px 9px 16px;
  border: 1px solid rgba(122, 184, 255, 0.25);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.focus-search input:focus {
  border-color: rgba(122, 184, 255, 0.6);
  box-shadow: 0 0 0 3px rgba(122, 184, 255, 0.12);
}
.focus-search input::placeholder { color: rgba(255, 255, 255, 0.35); }
.focus-search button {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  display: none;               /* 默认隐藏，有内容时显示 */
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--muted);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
}
.focus-search button:hover { background: rgba(255, 255, 255, 0.2); color: var(--text); }

.focus-empty {
  color: var(--muted);
  font-size: 14px;
  text-align: center;
  padding: 40px 0;
}

.focus-stage {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 12px 0;
}

.focus-list {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: min(820px, 100%);
  transition: transform 0.3s ease;
}

/* ============ 主页介绍页（俏皮靓丽） ============ */
.intro-wrap {
  width: 100%;
  max-height: 100%;
  overflow-y: auto;
  padding: 10px 4px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 26px;
}
.intro-hero {
  text-align: center;
  padding-top: 10px;
  position: relative;
}
.intro-kicker {
  display: inline-block;
  padding: 6px 18px;
  border: 1.5px solid rgba(255, 168, 210, 0.55);
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255,168,210,0.18), rgba(255,214,120,0.18));
  color: #ff9ec9;
  font-size: 11px;
  letter-spacing: 2.5px;
  font-weight: 800;
  margin-bottom: 18px;
  box-shadow: 0 4px 14px rgba(255, 150, 200, 0.15);
}
.intro-hero h1 {
  margin: 0;
  font-size: 46px;
  letter-spacing: 2px;
  font-weight: 900;
  background: linear-gradient(120deg, #ff6ec7 0%, #ffb74d 45%, #4dd6c7 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  filter: drop-shadow(0 6px 18px rgba(255, 120, 200, 0.25));
}
.intro-sub {
  margin: 16px auto 0;
  max-width: 560px;
  color: rgba(226, 236, 255, 0.88);
  font-size: 15px;
  line-height: 1.8;
}
.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  width: 100%;
  max-width: 780px;
}
@media (max-width: 720px) {
  .intro-grid { grid-template-columns: repeat(2, 1fr); }
}
.intro-card {
  padding: 18px 20px 16px;
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
  transform: translateY(0);
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
}
.intro-card:nth-child(1) { border-top: 3px solid #ff6ec7; }
.intro-card:nth-child(2) { border-top: 3px solid #ffb74d; }
.intro-card:nth-child(3) { border-top: 3px solid #4dd6c7; }
.intro-card:nth-child(4) { border-top: 3px solid #7ab8ff; }
.intro-card:nth-child(5) { border-top: 3px solid #b57bff; }
.intro-card:nth-child(6) { border-top: 3px solid #6cffb4; }
.intro-card:hover {
  transform: translateY(-5px) rotate(-0.5deg);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
  background: linear-gradient(160deg, rgba(255,255,255,0.11), rgba(255,255,255,0.03));
}
.intro-icon {
  font-size: 26px;
  display: block;
  margin-bottom: 10px;
  filter: drop-shadow(0 3px 6px rgba(0,0,0,0.3));
}
.intro-card h3 {
  margin: 0 0 6px;
  font-size: 15px;
  color: var(--text);
}
.intro-card p {
  margin: 0;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.6;
}
.intro-cta {
  text-align: center;
  padding: 10px 0 4px;
}
.intro-hint {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 12.5px;
}

/* 卡片：基础态是「远离中心」，越小越暗越模糊。
 * 用 nth-child 实现「离中心越远，缩放与透明度递减」的透视渐变。
 * 注意：renderFocus 每次只渲染 5 张（中心±2），
 * nth-child(2) 恒为中心，1/3 为紧邻，4/5 为最远。
 */
.focus-card {
  position: relative;
  width: 100%;
  padding: 20px 30px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  display: grid;
  grid-template-columns: 64px 1fr auto;
  align-items: center;
  gap: 20px;
  margin: 6px 0;
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1),
    opacity 0.3s ease, filter 0.3s ease,
    border-color 0.3s ease, box-shadow 0.3s ease;
}

/* 中心：最大、最亮、最清晰 */
.focus-card.is-center {
  opacity: 1;
  transform: scale(1.15);
  filter: none;
  border-color: rgba(90, 210, 255, 0.6);
  background: rgba(22, 48, 94, 0.92);
  box-shadow: 0 22px 54px rgba(20, 80, 150, 0.45);
  z-index: 3;
}

/* 对称层次（基于 JS 位置类，与 DOM 顺序无关）：
 *   中心(3) 最大，紧邻(2/4) 稍大，最远(1/5) 最小
 */
.focus-card.is-up2,
.focus-card.is-down2 {
  opacity: 0.28;
  transform: scale(0.72);
  filter: blur(2px);
}

.focus-card.is-up1,
.focus-card.is-down1 {
  opacity: 0.55;
  transform: scale(0.9);
  filter: blur(0.6px);
}

.focus-card:hover {
  opacity: 0.85;
  border-color: rgba(120, 200, 255, 0.45);
}

.focus-level {
  display: grid;
  place-items: center;
  width: 58px;
  height: 44px;
  border-radius: 12px;
  background: rgba(90, 210, 255, 0.12);
  color: var(--accent);
  font-weight: 800;
  font-size: 15px;
}

.focus-main strong {
  display: block;
  font-size: 19px;
  margin-bottom: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.focus-main small {
  color: var(--muted);
  font-size: 13px;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.focus-meta {
  grid-column: 2 / -1;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.focus-meta b {
  color: var(--accent);
  font-weight: 600;
}

.focus-meta .noaudio {
  color: #ff9d5c;
}

/* 中心卡片内部元素同步放大，强化聚焦感 */
.focus-card.is-center .focus-level {
  width: 70px;
  height: 52px;
  font-size: 18px;
  background: rgba(90, 210, 255, 0.22);
}

.focus-card.is-center .focus-main strong {
  font-size: 26px;
}

.focus-card.is-center .focus-main small {
  font-size: 15px;
  color: var(--text);
}

.focus-card.is-center .focus-meta {
  font-size: 14px;
  gap: 20px;
}

.focus-card.is-center .focus-meta b {
  color: var(--accent);
  font-size: 15px;
}

.focus-card.is-center .song-diff {
  font-size: 13px;
  padding: 8px 16px;
}

.focus-hint {
  margin-top: 16px;
  color: var(--muted);
  font-size: 12.5px;
  letter-spacing: 0.5px;
}

.focus-hint kbd {
  min-width: 0;
  padding: 1px 6px;
  font-size: 11px;
  border-radius: 4px;
}

.song-diff {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.5px;
  font-style: normal;
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
  justify-self: end;
}

.diff-easy { background: rgba(122, 255, 196, 0.16); color: var(--accent-2); }
.diff-normal { background: rgba(90, 210, 255, 0.16); color: var(--accent); }
.diff-hard { background: rgba(255, 92, 122, 0.16); color: #ff5c7a; }
.diff-bms { background: rgba(138, 123, 255, 0.18); color: #a89cff; }

/* ==================== 底部控制条 ==================== */
.song-controlbar {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  padding: 14px 26px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
}

.ctrl-speed {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 220px;
}

.ctrl-label {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

.ctrl-speed input {
  flex: 1;
}

.ctrl-speed b {
  color: var(--accent);
  font-size: 13px;
  min-width: 40px;
  font-variant-numeric: tabular-nums;
}

.ctrl-hint {
  color: var(--muted);
  font-size: 12.5px;
  white-space: nowrap;
}

/* ==================== 设置抽屉 ==================== */
.settings-drawer {
  position: fixed;
  right: 18px;
  top: 74px;                       /* 贴 header 下方，不占满全屏 */
  width: min(340px, 92vw);
  max-height: calc(100vh - 104px); /* 超高时内部滚动 */
  padding: 22px 24px 26px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(10, 18, 40, 0.96);
  backdrop-filter: blur(10px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s ease, opacity 0.25s ease;
  z-index: 20;
}

.settings-drawer.is-collapsed {
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
}

.settings-drawer:not(.is-collapsed) {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.settings-drawer h3 {
  margin: 0;
  font-size: 17px;
}

.drawer-close {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
  color: var(--muted);
}

.drawer-close:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
}

.drawer-close svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
}

.settings-hint {
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.6;
}

.slider-row {
  display: grid;
  gap: 8px;
}

.slider-row span {
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.slider-row span small {
  color: var(--muted);
  font-size: 11.5px;
}

.slider-row b {
  color: var(--accent);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}

input[type="range"] {
  width: 100%;
  height: 5px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.14);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(90, 210, 255, 0.6);
}

input[type="range"]::-moz-range-thumb {
  width: 17px;
  height: 17px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
}

.source-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(90, 210, 255, 0.07);
}

.ghost-button {
  padding: 10px 18px;
  border: 1px solid rgba(90, 210, 255, 0.45);
  border-radius: 10px;
  background: rgba(90, 210, 255, 0.12);
  color: var(--accent);
  font-size: 13.5px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.16s ease;
}

.ghost-button:hover { background: rgba(90, 210, 255, 0.22); }
.ghost-button:disabled { opacity: 0.5; cursor: default; }

.source-status {
  color: var(--muted);
  font-size: 12.5px;
}

.source-status.is-error { color: #ff9d5c; }
.source-status.is-ready { color: var(--accent-2); }

/* 曲目卡片上的谱面元信息 */
.song-meta {
  grid-column: 1 / -1;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  padding-top: 4px;
  color: var(--muted);
  font-size: 11.5px;
}

.song-meta b {
  color: var(--accent);
  font-weight: 600;
}

.song-card.is-loading {
  opacity: 0.6;
  pointer-events: none;
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.toggle-row > span {
  display: grid;
  gap: 2px;
}

.toggle-row strong {
  font-size: 13.5px;
  font-weight: 600;
}

.toggle-row small {
  color: var(--muted);
  font-size: 11.5px;
}

.toggle-row input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

/* 开关滑块 */
.toggle-row i {
  position: relative;
  flex: none;
  width: 42px;
  height: 24px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  transition: background 0.18s ease;
}

.toggle-row i::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.18s ease;
}

.toggle-row input:checked ~ i {
  background: var(--accent);
}

.toggle-row input:checked ~ i::after {
  transform: translateX(18px);
}

.speed-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 12px 14px;
  border-radius: 11px;
  background: rgba(90, 210, 255, 0.07);
}

.speed-preview > div {
  display: grid;
  gap: 3px;
}

.speed-preview span {
  color: var(--muted);
  font-size: 11px;
}

.speed-preview b {
  color: var(--accent);
  font-size: 14.5px;
  font-variant-numeric: tabular-nums;
}

.speed-preview small {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.key-hint-block {
  display: grid;
  gap: 8px;
  padding-top: 6px;
  border-top: 1px solid var(--line);
}

.key-hint-block > span {
  font-size: 12.5px;
  color: var(--muted);
}

.key-hint {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

kbd {
  min-width: 34px;
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-bottom-width: 3px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  font-family: inherit;
}

/* ==================== 按钮 ==================== */

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 26px;
  border: none;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--accent), #7b8cff);
  color: #04101f;
  font-size: 15.5px;
  font-weight: 800;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
  box-shadow: 0 10px 28px rgba(90, 210, 255, 0.28);
}

.primary-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(90, 210, 255, 0.4);
}

.primary-button i,
.primary-button span {
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.18);
  font-style: normal;
  font-size: 12px;
}

.secondary-button {
  padding: 15px 26px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.16s ease;
}

.secondary-button:hover { background: rgba(255, 255, 255, 0.1); }

.text-button {
  padding: 10px;
  border: none;
  background: none;
  color: var(--muted);
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
}

.text-button:hover { color: var(--text); }

/* ==================== 游戏界面 ==================== */

.game-screen {
  align-items: center;
  justify-content: center;
}

.canvas-frame {
  position: relative;
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
}

#gameCanvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: 100%;
  object-fit: contain;
  background: #050a18;
  user-select: none;
}

/* 自动演示时可拖拽进度条的提示光标 */
#gameCanvas.is-seeking {
  cursor: col-resize;
}

.back-button,
.round-button {
  position: absolute;
  top: 18px;
  left: 18px;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(8, 16, 38, 0.75);
  cursor: pointer;
  z-index: 5;
}

.round-button svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--text);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.round-button:hover { background: rgba(20, 40, 84, 0.9); }

/* 暂停层 */
.pause-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(4, 8, 20, 0.82);
  backdrop-filter: blur(6px);
  z-index: 10;
}

.pause-overlay.is-hidden { display: none; }

.pause-dialog {
  display: grid;
  gap: 12px;
  justify-items: center;
  padding: 38px 46px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  text-align: center;
}

.overlay-kicker {
  margin: 0;
  color: var(--accent);
  font-size: 11.5px;
  letter-spacing: 3px;
  font-weight: 700;
}

.pause-dialog h2 { margin: 0; font-size: 25px; }
.pause-dialog p { margin: 0; color: var(--muted); font-size: 14px; }

/* 播放倍速等临时提示（居中浮层，短暂显示） */
.play-hint {
  position: absolute;
  left: 50%;
  top: 58%;
  transform: translate(-50%, -50%);
  padding: 8px 20px;
  border: 1px solid rgba(122, 255, 196, 0.4);
  border-radius: 999px;
  background: rgba(8, 18, 36, 0.82);
  color: #7affc4;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.18s ease;
  z-index: 9;
}
.play-hint.is-show { opacity: 1; }

/* ==================== 结算界面 ==================== */

.result-screen {
  align-items: center;
  justify-content: center;
  padding: 30px;
}

.result-card {
  display: grid;
  gap: 18px;
  justify-items: center;
  width: min(560px, 100%);
  max-height: 100%;
  padding: 40px 44px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  text-align: center;
  overflow-y: auto;
}

.result-card h2 { margin: 0; font-size: 26px; }

.result-grade {
  display: grid;
  place-items: center;
  width: 118px;
  height: 118px;
  border-radius: 50%;
  background: linear-gradient(140deg, rgba(90, 210, 255, 0.2), rgba(122, 255, 196, 0.14));
  border: 2px solid rgba(122, 255, 196, 0.5);
  color: var(--accent-2);
  font-size: 50px;
  font-weight: 900;
  box-shadow: 0 0 46px rgba(122, 255, 196, 0.22);
}

.result-grade[data-grade="SSS"] { color: var(--gold); border-color: rgba(255, 230, 109, 0.6); }
.result-grade[data-grade="S"],
.result-grade[data-grade="SS"] { color: var(--accent); border-color: rgba(90, 210, 255, 0.5); }
.result-grade[data-grade="D"],
.result-grade[data-grade="C"] { color: #ff5c7a; border-color: rgba(255, 92, 122, 0.45); }

/* 自动演示：评级去饱和，表明成绩不计入 */
.result-grade[data-auto="true"] {
  color: var(--muted);
  border-color: rgba(127, 151, 196, 0.4);
  background: linear-gradient(140deg, rgba(127, 151, 196, 0.14), rgba(127, 151, 196, 0.07));
  box-shadow: none;
}

.result-main {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  width: 100%;
}

.result-stat {
  display: grid;
  gap: 5px;
  padding: 16px 10px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
}

.result-stat small {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 1.4px;
}

.result-stat strong {
  font-size: 23px;
  font-variant-numeric: tabular-nums;
}

.result-detail {
  display: grid;
  gap: 7px;
  width: 100%;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  padding: 9px 15px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  font-size: 13.5px;
}

.detail-row b { font-variant-numeric: tabular-nums; }
.detail-perfect span, .detail-perfect b { color: var(--gold); }
.detail-great span, .detail-great b { color: var(--accent-2); }
.detail-good span, .detail-good b { color: var(--accent); }
.detail-bad span, .detail-bad b { color: #ff9d5c; }
.detail-miss span, .detail-miss b { color: #ff5c7a; }

.latency-report {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: 100%;
}

.latency-report > div {
  display: grid;
  gap: 4px;
  padding: 11px 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
}

.latency-report span {
  color: var(--muted);
  font-size: 11px;
}

.latency-report b {
  font-size: 15.5px;
  font-variant-numeric: tabular-nums;
}

.latency-report b.is-warn {
  color: #ff9d5c;
}

.result-advice {
  margin: 0;
  padding: 11px 15px;
  border-radius: 10px;
  background: rgba(90, 210, 255, 0.09);
  color: var(--accent);
  font-size: 13px;
}

.result-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ==================== 响应式 ==================== */

@media (max-width: 1080px) {
  .song-screen { padding: 26px; }
}

@media (max-width: 720px) {
  .song-screen { padding: 18px; gap: 16px; }
  .logo h1 { font-size: 21px; }
  .focus-card { grid-template-columns: 48px 1fr; padding: 14px 18px; }
  .focus-level { width: 48px; height: 38px; font-size: 13px; }
  .song-diff { justify-self: start; }
  .song-controlbar { flex-direction: column; align-items: stretch; gap: 12px; }
  .result-main { grid-template-columns: 1fr; }
}