/* =========================================================================
   江苏警官学院警乐团 · 官方宣传站
   设计方向：藏蓝 + 金 · 电影感暗调 · 移动端优先
   ------------------------------------------------------------------------
   目录
   01. 字体
   02. 设计变量
   03. 重置与基础
   04. 通用组件（容器 / 按钮 / 分隔线）
   05. 顶部导航
   06. 首屏 Hero
   07. 倒计时
   08. 区块标题
   09. 01 我们是谁
   10. 02 数字
   11. 03 声部
   12. 04 荣誉时间线
   13. 05 演出回顾
   14. 06 训练日常
   15. 07 招新问答
   16. 08 加入我们
   17. 页脚
   18. 移动端吸底条
   19. 动效与降级
   20. 断点
   ========================================================================= */

/* ============================ 01. 字体 ============================ */
@font-face {
  font-family: "JYT Serif";
  src: url("../fonts/noto-serif-sc-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0020-007E, U+00A0-00FF, U+2000-206F, U+3000-303F, U+4E00-9FFF, U+FF00-FFEF;
}
@font-face {
  font-family: "JYT Serif";
  src: url("../fonts/noto-serif-sc-700.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0020-007E, U+00A0-00FF, U+2000-206F, U+3000-303F, U+4E00-9FFF, U+FF00-FFEF;
}

/* ============================ 02. 设计变量 ============================ */
:root {
  /* 藏蓝夜色 */
  --navy-1000: #03060B;
  --navy-950:  #05080F;
  --navy-900:  #070C16;
  --navy-850:  #0A1120;
  --navy-800:  #0D1626;
  --navy-750:  #111C30;
  --navy-700:  #16243C;
  --navy-600:  #1E3150;

  /* 金色 */
  --gold-100: #F6EAD0;
  --gold-200: #EBD9B0;
  --gold-300: #DCC28C;
  --gold-400: #CDAE6F;
  --gold-500: #C09A54;
  --gold-600: #A17F3E;
  --gold-700: #7A5F2C;

  /* 文字 */
  --ink:      #EFEBE3;
  --ink-soft: #C8CBD2;
  --ink-dim:  #97A0B0;
  --ink-mute: #67717F;

  /* 线与面 */
  --line:      rgba(226, 202, 154, 0.16);
  --line-soft: rgba(255, 255, 255, 0.07);
  --line-hard: rgba(226, 202, 154, 0.30);
  --surface:   rgba(255, 255, 255, 0.028);
  --surface-2: rgba(255, 255, 255, 0.055);

  /* 字体族 */
  --f-serif: "JYT Serif", "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  --f-sans: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei",
            "Helvetica Neue", Arial, sans-serif;
  --f-mono: "SF Mono", "JetBrains Mono", Consolas, monospace;

  /* 节奏 */
  --gutter: 22px;
  --maxw: 1200px;
  --sec-y: clamp(72px, 15vw, 148px);

  /* 圆角 */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;

  /* 动效 */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ============================ 03. 重置与基础 ============================ */
*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 76px;
}

body {
  min-height: 100svh;
  background: var(--navy-950);
  color: var(--ink);
  font-family: var(--f-sans);
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  /* 顶部到底部的极缓渐变，避免大面积死黑 */
  background-image:
    radial-gradient(120% 60% at 50% 0%, rgba(30, 49, 80, 0.55) 0%, rgba(5, 8, 15, 0) 60%),
    linear-gradient(180deg, var(--navy-950) 0%, var(--navy-1000) 100%);
  background-attachment: fixed;
}

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

a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; }

button, input, textarea { font: inherit; color: inherit; }

h1, h2, h3 { font-weight: 700; line-height: 1.18; letter-spacing: 0.01em; }

ul, ol { list-style: none; padding: 0; }

::selection { background: rgba(192, 154, 84, 0.35); color: #fff; }

:focus-visible {
  outline: 2px solid var(--gold-300);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ============================ 04. 通用组件 ============================ */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* 按钮 */
.btn {
  --btn-h: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: var(--btn-h);
  padding: 0 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.35s var(--ease), background-color 0.35s var(--ease),
              border-color 0.35s var(--ease), color 0.35s var(--ease),
              box-shadow 0.35s var(--ease);
  will-change: transform;
}
.btn:active { transform: scale(0.97); }

.btn--gold {
  background: linear-gradient(180deg, var(--gold-200) 0%, var(--gold-400) 55%, var(--gold-600) 100%);
  color: #1A1408;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.4) inset,
    0 8px 26px -10px rgba(192, 154, 84, 0.7);
}
.btn--gold:hover {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.55) inset,
    0 12px 34px -10px rgba(192, 154, 84, 0.9);
  transform: translateY(-1px);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.22);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.btn--ghost:hover {
  border-color: var(--line-hard);
  color: var(--gold-200);
  background: rgba(255, 255, 255, 0.05);
}

.btn--sm { --btn-h: 40px; padding: 0 18px; font-size: 13.5px; }

/* 金色细线 */
.rule {
  display: inline-block;
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-400));
  vertical-align: middle;
}

/* ============================ 05. 顶部导航 ============================ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  padding-top: env(safe-area-inset-top);
  transition: background-color 0.5s var(--ease), backdrop-filter 0.5s var(--ease),
              border-color 0.5s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-solid {
  background: rgba(5, 8, 15, 0.72);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--line-soft);
}

.nav__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 12px var(--gutter);
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
}
.nav__emblem { width: 30px; height: auto; }
.nav__name {
  font-family: var(--f-serif);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ink);
}

.nav__links {
  display: none;
  margin-left: auto;
  gap: 30px;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
}
.nav__links a {
  position: relative;
  padding: 6px 0;
  transition: color 0.3s var(--ease);
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--gold-400);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease);
}
.nav__links a:hover { color: var(--gold-200); }
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav__cta { margin-left: auto; }

/* ============================ 06. 首屏 ============================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: calc(env(safe-area-inset-top) + 72px) 0 clamp(40px, 8vh, 72px);
  overflow: hidden;
  isolation: isolate;
}

.hero__media { position: absolute; inset: 0; z-index: -2; }
.hero__media picture { display: block; width: 100%; height: 100%; }
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 34%;
  transform: scale(1.08);
  will-change: transform;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg,
      rgba(5, 8, 15, 0.92) 0%,
      rgba(5, 8, 15, 0.55) 7%,
      rgba(5, 8, 15, 0.16) 18%,
      rgba(5, 8, 15, 0.42) 52%,
      rgba(5, 8, 15, 0.92) 82%,
      var(--navy-950) 100%),
    radial-gradient(95% 58% at 16% 90%, rgba(3, 6, 11, 0.86) 0%, transparent 72%);
}

/* 胶片颗粒 */
.hero__grain {
  position: absolute;
  inset: 0;
  opacity: 0.16;
  mix-blend-mode: overlay;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

.hero__content {
  position: relative;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11.5px;
  letter-spacing: 0.34em;
  color: var(--gold-300);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.hero__title {
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: clamp(44px, 13.5vw, 104px);
  line-height: 1.06;
  letter-spacing: 0.06em;
  color: #fff;
  text-shadow: 0 2px 40px rgba(0, 0, 0, 0.55);
  margin-bottom: 20px;
}
.hero__title .line { display: block; overflow: hidden; }
.hero__title .line > span { display: block; }
.hero__title .line:last-child > span {
  background: linear-gradient(96deg, #fff 0%, var(--gold-100) 38%, var(--gold-400) 72%, var(--gold-200) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lede {
  max-width: 30em;
  font-size: clamp(14px, 3.7vw, 16.5px);
  line-height: 1.95;
  color: var(--ink-soft);
  margin-bottom: 22px;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  margin-bottom: 26px;
}
.hero__meta-item { display: flex; align-items: baseline; gap: 9px; }
.hero__meta-item .k {
  font-size: 10.5px;
  letter-spacing: 0.28em;
  color: var(--gold-400);
  text-transform: uppercase;
}
.hero__meta-item .v { font-size: 13.5px; color: var(--ink-soft); letter-spacing: 0.04em; }

.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }

.hero__scroll {
  display: none;
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--ink-mute);
}
.hero__scroll i {
  display: block;
  width: 1px;
  height: 42px;
  background: linear-gradient(180deg, var(--gold-500), transparent);
}

/* ============================ 07. 倒计时 ============================ */
.countdown {
  display: inline-block;
  padding: 14px 16px 15px;
  margin-bottom: 26px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.countdown__label {
  font-size: 10.5px;
  letter-spacing: 0.3em;
  color: var(--gold-300);
  margin-bottom: 9px;
  text-transform: uppercase;
}

.countdown__grid { display: flex; align-items: baseline; gap: 4px; }

.countdown__cell {
  display: flex;
  align-items: baseline;
  gap: 3px;
}
.countdown__cell b {
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: clamp(24px, 7.2vw, 34px);
  line-height: 1;
  color: #fff;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  min-width: 1.6em;
  text-align: right;
  letter-spacing: 0.01em;
}
.countdown__cell i {
  font-style: normal;
  font-size: 10.5px;
  color: var(--ink-mute);
  letter-spacing: 0.05em;
  margin-right: 8px;
}
.countdown__cell:last-child i { margin-right: 0; }

.countdown.is-past .countdown__label::after { content: " · 就是今天"; color: var(--gold-200); }

/* ============================ 08. 区块标题 ============================ */
.sec {
  position: relative;
  padding-block: var(--sec-y);
}

.sec__head { margin-bottom: clamp(34px, 7vw, 60px); }

.sec__idx {
  display: block;
  font-family: var(--f-serif);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.34em;
  color: var(--gold-500);
  margin-bottom: 14px;
}

.sec__title {
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: clamp(30px, 8.4vw, 54px);
  line-height: 1.24;
  letter-spacing: 0.045em;
  color: var(--ink);
}

.sec__sub {
  margin-top: 16px;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--ink-dim);
}

/* ============================ 09. 我们是谁 ============================ */
.sec--about { padding-bottom: clamp(40px, 9vw, 80px); }

.about { display: grid; gap: 34px; }

.about__text p {
  font-size: 15px;
  line-height: 2.05;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.about__text p.lead {
  font-family: var(--f-serif);
  font-size: clamp(19px, 5vw, 25px);
  line-height: 1.72;
  letter-spacing: 0.05em;
  color: var(--ink);
  margin-bottom: 24px;
}
.about__text p.lead::before {
  content: "";
  display: block;
  width: 34px;
  height: 1px;
  background: var(--gold-500);
  margin-bottom: 20px;
}

.about__figure { position: relative; }
.about__figure img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--r-md);
  filter: saturate(0.92) contrast(1.03);
}
.about__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--r-md);
  box-shadow: inset 0 0 0 1px var(--line-soft);
  pointer-events: none;
}
.about__figure figcaption {
  margin-top: 12px;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--ink-mute);
}

/* 团训 */
.motto {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.motto__label {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.34em;
  color: var(--gold-500);
  margin-bottom: 12px;
}
.motto__words { display: flex; flex-wrap: wrap; gap: 8px; }
.motto__words span {
  font-family: var(--f-serif);
  font-size: clamp(17px, 4.6vw, 21px);
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--ink);
  padding: 4px 0;
}
.motto__words span:not(:last-child)::after {
  content: "·";
  color: var(--gold-500);
  margin-left: 14px;
  font-weight: 400;
}

/* ============================ 10. 数字 ============================ */
.sec--stats {
  padding-block: clamp(44px, 9vw, 76px);
  border-block: 1px solid var(--line-soft);
  background:
    radial-gradient(80% 140% at 50% 0%, rgba(30, 49, 80, 0.35), transparent 70%);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px 18px;
}

.stat { position: relative; }
.stat__num {
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: clamp(38px, 11vw, 58px);
  line-height: 1;
  letter-spacing: 0.01em;
  background: linear-gradient(180deg, #fff 0%, var(--gold-200) 62%, var(--gold-500) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}
.stat__unit {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold-400);
  margin-left: 6px;
}
.stat__cap {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
}

/* ============================ 11. 声部 ============================ */
.sec--sections { padding-bottom: clamp(48px, 10vw, 96px); }

.sect-rail {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 4px var(--gutter) 22px;
  scrollbar-width: none;
  scroll-padding-inline: var(--gutter);
}
.sect-rail::-webkit-scrollbar { display: none; }

.sect-card {
  position: relative;
  flex: 0 0 76%;
  max-width: 300px;
  scroll-snap-align: center;
  padding: 22px 20px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.055) 0%, rgba(255, 255, 255, 0.012) 55%, transparent 100%);
  overflow: hidden;
  transition: border-color 0.45s var(--ease), transform 0.45s var(--ease);
}
.sect-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 80% at 80% 0%, rgba(192, 154, 84, 0.16), transparent 62%);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
  pointer-events: none;
}
.sect-card:hover { border-color: var(--line-hard); transform: translateY(-3px); }
.sect-card:hover::before { opacity: 1; }

.sect-card__no {
  font-family: var(--f-serif);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold-500);
  margin-bottom: 26px;
}
.sect-card h3 {
  font-family: var(--f-serif);
  font-size: 24px;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin-bottom: 4px;
}
.sect-card__en {
  font-size: 10.5px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 14px;
}
.sect-card__desc {
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--ink-dim);
  min-height: 4.6em;
}
.sect-card__tag {
  display: inline-block;
  margin-top: 16px;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--gold-300);
}

.sect-note {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-mute);
}
.sect-note a { color: var(--gold-300); border-bottom: 1px solid var(--line-hard); }

/* ============================ 12. 荣誉时间线 ============================ */
.timeline { position: relative; }

.tl {
  position: relative;
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 14px;
  padding-bottom: 30px;
}
.tl:last-child { padding-bottom: 0; }

.tl::before {
  content: "";
  position: absolute;
  left: 66px;
  top: 8px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--line-hard), rgba(226, 202, 154, 0.06));
}
.tl:last-child::before { display: none; }

.tl__year {
  font-family: var(--f-serif);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold-300);
  padding-top: 1px;
}

.tl__body { position: relative; padding-left: 22px; }
.tl__body::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-400);
  box-shadow: 0 0 0 3px rgba(192, 154, 84, 0.16);
  transform: translateX(-3px);
}
.tl__body h3 {
  font-family: var(--f-serif);
  font-size: 16.5px;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin-bottom: 6px;
}
.tl__body p {
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--ink-dim);
}

/* ============================ 13. 演出回顾 ============================ */
.sec--shows { padding-bottom: clamp(56px, 11vw, 110px); }

.shows { display: grid; gap: 18px; padding-inline: var(--gutter); max-width: var(--maxw); margin-inline: auto; }

.show {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--navy-850);
  isolation: isolate;
}
.show__media { position: relative; }
.show__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.9) brightness(0.92);
  transition: transform 0.9s var(--ease), filter 0.6s var(--ease);
  will-change: transform;
}
.show__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 38%, rgba(3, 6, 11, 0.88) 100%);
}
.show:hover .show__media img { transform: scale(1.045); filter: saturate(1) brightness(1); }

.show__body {
  position: absolute;
  inset: auto 0 0 0;
  padding: 18px 18px 20px;
}
.show__body time {
  display: block;
  font-family: var(--f-serif);
  font-size: 11.5px;
  letter-spacing: 0.22em;
  color: var(--gold-300);
  margin-bottom: 7px;
}
.show__body h3 {
  font-family: var(--f-serif);
  font-size: 20px;
  letter-spacing: 0.05em;
  color: #fff;
  margin-bottom: 7px;
}
.show__body p {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(239, 235, 227, 0.78);
}

/* ============================ 14. 曲目 ============================ */
.sec--rep {
  position: relative;
  padding-block: clamp(52px, 10vw, 96px);
  border-block: 1px solid var(--line-soft);
  background: radial-gradient(90% 120% at 50% 0%, rgba(30, 49, 80, 0.34), transparent 72%);
  overflow: hidden;
}

.rep__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 26px;
}
.rep__title {
  flex: 0 0 auto;
  font-family: var(--f-serif);
  font-size: clamp(24px, 6.4vw, 38px);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ink);
}
.rep__note {
  flex-shrink: 0;
  margin-left: auto;
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--ink-mute);
}

.marquee {
  display: flex;
  overflow: hidden;
  padding-block: 10px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee + .marquee { border-top: 1px solid var(--line-soft); }

.marquee__track {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  min-width: max-content;
  animation: marqueeX var(--dur, 68s) linear infinite;
}
.marquee--rev .marquee__track { animation-direction: reverse; }
.marquee:hover .marquee__track { animation-play-state: paused; }

@keyframes marqueeX {
  from { transform: translateX(0); }
  to   { transform: translateX(-100%); }
}

.marquee__item {
  font-family: var(--f-serif);
  font-size: clamp(19px, 4.8vw, 30px);
  font-weight: 400;
  letter-spacing: 0.07em;
  color: rgba(239, 235, 227, 0.42);
  padding-inline: 4px;
  white-space: nowrap;
  transition: color 0.4s var(--ease);
}
.marquee:hover .marquee__item { color: rgba(239, 235, 227, 0.66); }

.marquee__dot {
  color: var(--gold-600);
  font-size: 0.7em;
  padding-inline: 20px;
  opacity: 0.75;
}

@media (prefers-reduced-motion: reduce) {
  .marquee { overflow-x: auto; -webkit-mask-image: none; mask-image: none; }
  .marquee__track { animation: none; }
  .marquee__track:nth-child(2) { display: none; }
}

/* ============================ 15. 训练日常 ============================ */
.daily { display: grid; gap: 14px; }

.daily__item {
  padding: 22px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--surface);
}
.daily__n {
  display: inline-block;
  font-family: var(--f-serif);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-400);
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  margin-bottom: 14px;
}
.daily__item h3 {
  font-family: var(--f-serif);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--ink);
  margin-bottom: 8px;
}
.daily__item p { font-size: 13.5px; line-height: 1.85; color: var(--ink-dim); }

/* ============================ 15. 招新问答 ============================ */
.faq { border-top: 1px solid var(--line-soft); }

.faq__item { border-bottom: 1px solid var(--line-soft); }

.faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  letter-spacing: 0.02em;
  transition: color 0.3s var(--ease);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--gold-200); }

.faq__item summary i {
  position: relative;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  transition: transform 0.4s var(--ease);
}
.faq__item summary i::before,
.faq__item summary i::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 12px; height: 1px;
  background: var(--gold-400);
  transform: translate(-50%, -50%);
  transition: transform 0.4s var(--ease), opacity 0.3s var(--ease);
}
.faq__item summary i::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq__item[open] summary { color: var(--gold-200); }
.faq__item[open] summary i { transform: rotate(90deg); }
.faq__item[open] summary i::after { opacity: 0; }

.faq__a {
  padding: 0 34px 22px 2px;
  animation: faqIn 0.45s var(--ease);
}
.faq__a p { font-size: 14px; line-height: 1.95; color: var(--ink-dim); }

@keyframes faqIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================ 16. 加入我们 ============================ */
.sec--join {
  position: relative;
  padding-block: clamp(64px, 13vw, 130px);
  border-top: 1px solid var(--line-soft);
  background:
    radial-gradient(100% 80% at 50% 100%, rgba(192, 154, 84, 0.14), transparent 62%),
    radial-gradient(90% 70% at 20% 0%, rgba(30, 49, 80, 0.5), transparent 65%);
  overflow: hidden;
}

.join { display: grid; gap: 36px; }

.join__title {
  font-family: var(--f-serif);
  font-size: clamp(32px, 9.5vw, 62px);
  line-height: 1.22;
  letter-spacing: 0.05em;
  color: var(--ink);
  margin: 14px 0 20px;
}
.join__lede {
  max-width: 32em;
  font-size: 14.5px;
  line-height: 2;
  color: var(--ink-soft);
  margin-bottom: 26px;
}

.join__facts { display: grid; gap: 0; border-top: 1px solid var(--line); }
.join__facts li {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}
.join__facts span {
  flex: 0 0 46px;
  font-size: 10.5px;
  letter-spacing: 0.26em;
  color: var(--gold-500);
}
.join__facts b {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0.03em;
}

.join__card {
  padding: 26px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015));
  text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.join__card-label {
  font-size: 10.5px;
  letter-spacing: 0.32em;
  color: var(--gold-300);
  margin-bottom: 18px;
}
.join__qr {
  display: inline-block;
  padding: 12px;
  background: #fff;
  border-radius: var(--r-md);
  box-shadow: 0 18px 50px -22px rgba(0, 0, 0, 0.9);
}
.join__qr img { width: 168px; height: auto; }
.join__group {
  margin-top: 18px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ink-mute);
}
.join__group b {
  display: block;
  margin-top: 6px;
  font-family: var(--f-serif);
  font-size: 22px;
  letter-spacing: 0.1em;
  color: var(--gold-200);
  font-variant-numeric: tabular-nums;
}
.join__group-name {
  margin-top: 6px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--ink-mute);
}

/* ============================ 17. 页脚 ============================ */
.foot {
  padding: clamp(48px, 9vw, 80px) 0 calc(28px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line-soft);
  background: var(--navy-1000);
}

.foot__top {
  display: grid;
  gap: 26px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--line-soft);
}
.foot__brand { display: flex; align-items: center; gap: 14px; }
.foot__brand img { width: 44px; height: auto; opacity: 0.92; }
.foot__name {
  font-family: var(--f-serif);
  font-size: 16px;
  letter-spacing: 0.12em;
  color: var(--ink);
  margin-bottom: 4px;
}
.foot__en {
  font-size: 9.5px;
  letter-spacing: 0.22em;
  color: var(--ink-mute);
}

.foot__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--ink-dim);
}
.foot__nav a { transition: color 0.3s var(--ease); }
.foot__nav a:hover { color: var(--gold-200); }

.foot__motto {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  font-family: var(--f-serif);
  font-size: clamp(20px, 6vw, 30px);
  font-weight: 700;
  letter-spacing: 0.22em;
  color: rgba(239, 235, 227, 0.13);
  border-bottom: 1px solid var(--line-soft);
  user-select: none;
}

.foot__bottom {
  display: grid;
  gap: 6px;
  padding-top: 20px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
}

/* ============================ 18. 吸底条 ============================ */
.dock {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(12px + env(safe-area-inset-bottom));
  z-index: 80;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 9px 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(7, 12, 22, 0.86);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  box-shadow: 0 16px 44px -18px rgba(0, 0, 0, 0.95);
  transform: translateY(140%);
  opacity: 0;
  transition: transform 0.55s var(--ease), opacity 0.45s var(--ease);
  pointer-events: none;
}
.dock.is-on { transform: translateY(0); opacity: 1; pointer-events: auto; }

.dock__left { display: flex; align-items: baseline; gap: 7px; min-width: 0; }
.dock__left b {
  font-family: var(--f-serif);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--gold-200);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.dock__left span {
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
  white-space: nowrap;
}
.dock .btn { margin-left: auto; flex-shrink: 0; }

/* ============================ 19. 动效与降级 ============================ */
[data-reveal] { will-change: transform, opacity; }

/* JS 可用时先隐藏待揭示元素，避免闪烁；JS 缺失/降级时移除 .js-anim 兜底 */
.js-anim [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.js-anim [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* 首屏入场（CSS 驱动，保证无 JS 也可见） */
.hero__title .line > span {
  transform: translateY(105%);
  animation: heroLine 1.15s var(--ease) forwards;
}
.hero__title .line:nth-child(1) > span { animation-delay: 0.12s; }
.hero__title .line:nth-child(2) > span { animation-delay: 0.24s; }
@keyframes heroLine {
  to { transform: translateY(0); }
}

.hero__eyebrow,
.hero__lede,
.hero__meta,
.countdown,
.hero__actions {
  opacity: 0;
  animation: heroFade 1s var(--ease) forwards;
}
.hero__eyebrow  { animation-delay: 0.42s; }
.hero__lede     { animation-delay: 0.52s; }
.hero__meta     { animation-delay: 0.60s; }
.countdown      { animation-delay: 0.68s; }
.hero__actions  { animation-delay: 0.76s; }
@keyframes heroFade {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 无 JS 兜底 */
.no-js [data-reveal] { opacity: 1 !important; transform: none !important; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .hero__media img { transform: none !important; }
  .hero__title .line > span { transform: none !important; }
  .hero__eyebrow, .hero__lede, .hero__meta, .countdown, .hero__actions { opacity: 1 !important; }
}

/* ============================ 20. 断点 ============================ */

/* --- 小手机 --- */
@media (max-width: 359px) {
  :root { --gutter: 16px; }
  .countdown__cell b { font-size: 21px; }
}

/* --- 大屏手机 / 小平板 --- */
@media (min-width: 560px) {
  .stats { grid-template-columns: repeat(4, 1fr); gap: 22px; }
  .shows { grid-template-columns: repeat(2, 1fr); }
  .daily { grid-template-columns: repeat(2, 1fr); }
  .foot__top { grid-template-columns: 1fr auto; align-items: center; }
  .foot__bottom { grid-template-columns: 1fr auto; }
  .sect-card { flex-basis: 46%; }
}

/* --- 平板 --- */
@media (min-width: 760px) {
  :root { --gutter: 32px; }

  .nav__links { display: flex; }
  .nav__cta { margin-left: 0; }
  .hero__scroll { display: flex; }

  .hero__content { padding-inline: var(--gutter); }
  .hero__lede { font-size: 17px; }

  .about {
    grid-template-columns: 1.05fr 0.95fr;
    gap: clamp(36px, 6vw, 76px);
    align-items: start;
  }
  .about__figure { position: sticky; top: 100px; }

  .timeline { max-width: 820px; }
  .tl { grid-template-columns: 92px 1fr; }
  .tl::before { left: 96px; }

  .join {
    grid-template-columns: 1.15fr 0.85fr;
    gap: clamp(36px, 6vw, 72px);
    align-items: center;
  }
  .join__card { padding: 34px 28px 30px; }
  .join__qr img { width: 196px; }

  .foot__motto { gap: 34px; }
}

/* --- 桌面 --- */
@media (min-width: 1000px) {
  :root { --gutter: 44px; }

  /* 荣誉：左标题（吸顶）+ 右时间线 */
  .sec--honours .wrap {
    display: grid;
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: clamp(44px, 6vw, 96px);
    align-items: start;
  }
  .sec--honours .sec__head {
    position: sticky;
    top: 112px;
    margin-bottom: 0;
  }
  .timeline { max-width: none; }

  .hero { padding-bottom: clamp(64px, 11vh, 104px); }
  .hero__title { letter-spacing: 0.075em; }

  /* 声部：桌面改为网格 */
  .sect-rail {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
    overflow: visible;
    padding-inline: var(--gutter);
    max-width: var(--maxw);
    margin-inline: auto;
  }
  .sect-card { flex: none; max-width: none; }

  .shows { gap: 22px; }
  .shows .show:last-child { grid-column: 1 / -1; }
  .shows .show:last-child .show__media img { aspect-ratio: 21 / 9; }
  .sec--shows { padding-bottom: clamp(90px, 12vw, 150px); }

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

  .faq { max-width: 900px; }
  .faq__item summary { padding: 24px 2px; font-size: 16px; }

  .dock { display: none; }
}

/* --- 大桌面 --- */
@media (min-width: 1280px) {
  :root { --maxw: 1240px; }
  .sect-card__desc { min-height: 5.2em; }
}

/* --- 横屏矮屏 --- */
@media (max-height: 520px) and (orientation: landscape) {
  .hero { min-height: auto; padding-block: 96px 40px; }
  .hero__scroll { display: none; }
  .countdown { display: none; }
}