/* ==========================================================================
   群屿之陆社区 Land of Islands — 主样式
   视觉体系复用自 MC.XKFUN.CC，扩展：夜海 Hero / 活动卡片 / 筛选栏 / 详情弹层 /
   数据条 / 时间轴 / 页头
   ========================================================================== */

:root {
  --bg:        #0a0a0f;
  --bg-alt:    #0d0d14;
  --bg-deep:    #06060a;
  --bg-panel:  #111118;
  --accent:    #6db3f2;
  --accent-dim: rgba(109, 179, 242, 0.15);
  --card:      rgba(255, 255, 255, 0.03);
  --line:      rgba(255, 255, 255, 0.06);
  --line-hi:   rgba(255, 255, 255, 0.15);
  --t1:        #ffffff;
  --t2:        rgba(255, 255, 255, 0.55);
  --t3:        rgba(255, 255, 255, 0.35);
  --t4:        rgba(255, 255, 255, 0.18);
  --radius:    16px;
  --radius-sm: 10px;
  --shadow-accent: 0 6px 24px rgba(109, 179, 242, 0.35);
  --ease:      cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

section[id], div[id].anchor { scroll-margin-top: 84px; }

html {
  -ms-overflow-style: none;
  scrollbar-width: none;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

html::-webkit-scrollbar { display: none; }

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei",
               "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--t1);
  background-color: var(--bg);
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

a, a:hover, a:focus { text-decoration: none; }
a:hover, a:focus { color: inherit; }
button { font-family: inherit; }
img, svg { max-width: 100%; }

/* ========== 加载动画 ========== */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity .5s ease, visibility .5s ease;
}
.loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.loader-ring {
  width: 48px;
  height: 48px;
  border: 3px solid rgba(255, 255, 255, .1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: loader-spin .8s linear infinite;
  margin-bottom: 20px;
}
@keyframes loader-spin { to { transform: rotate(360deg); } }

.loader-text {
  color: var(--t3);
  font-size: 12px;
  letter-spacing: 4px;
  animation: loader-pulse 1.5s ease-in-out infinite;
}
@keyframes loader-pulse {
  0%, 100% { opacity: .4; }
  50%      { opacity: 1; }
}

/* ========== 顶栏 ========== */
.header_section {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .4s ease, backdrop-filter .4s ease, -webkit-backdrop-filter .4s ease;
}
.header_section.scrolled {
  background: rgba(0, 0, 0, .55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.header_section .container-fluid { padding-right: 25px; padding-left: 25px; }

.custom_nav-container {
  display: flex;
  align-items: center;
  padding: 15px 0;
  position: relative;
  z-index: 99999;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 11px;
}
/* Logo 为 20×23 竖向像素字形，只定高、宽度自适应，避免被压成正方形 */
.navbar-brand img {
  width: auto;
  height: 34px;
  display: block;
  transition: filter .3s ease, transform .3s var(--ease);
}
.navbar-brand:hover img {
  filter: drop-shadow(0 0 9px rgba(109, 179, 242, .55));
  transform: translateY(-1px);
}
.navbar-brand span {
  font-size: 18px;
  font-weight: 700;
  color: var(--t1);
  letter-spacing: 1px;
  white-space: nowrap;
}
.navbar-brand small {
  display: block;
  font-size: 10px;
  font-weight: 400;
  color: var(--t3);
  letter-spacing: 2px;
  text-transform: uppercase;
  line-height: 1;
}

.navbar-nav {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0 auto;
  padding: 0;
}
.navbar-nav .nav-link {
  display: block;
  margin: 10px 26px;
  padding: 0 0 3px;
  color: rgba(255, 255, 255, .85);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .5px;
  position: relative;
  transition: color .3s ease;
}
.navbar-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .35s var(--ease);
}
.navbar-nav .nav-item:hover .nav-link { color: var(--t1); }
.navbar-nav .nav-item.active .nav-link { color: var(--t1); }
.navbar-nav .nav-item.active .nav-link::after,
.navbar-nav .nav-item:hover .nav-link::after { transform: scaleX(1); }

.nav_cta {
  display: inline-block;
  padding: 8px 24px;
  font-size: 14px;
  font-weight: 600;
  color: #1a1a2e;
  background: #fff;
  border-radius: 50px;
  white-space: nowrap;
  transition: transform .3s ease, box-shadow .3s ease;
}
.nav_cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255, 255, 255, .3);
  color: #1a1a2e;
}

.navbar-toggler {
  display: none;
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  color: rgba(255, 255, 255, .85);
}
.navbar-toggler:hover { color: #fff; }

.navbar-collapse { display: flex; align-items: center; flex: 1; }

/* ========== HERO ========== */
.hero_area {
  height: 100vh;
  height: 100dvh;
  min-height: 620px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

/* 背景层容器：只负责定位与深色兜底底（视频未就绪时露出的颜色，避免白闪） */
.hero_bg { position: absolute; inset: 0; z-index: 0; background: #05070d; }

/* 背景视频：默认透明，加载可播后才淡入 */
.hero_video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity .8s ease;
  pointer-events: none;
}
.hero_video.ready { opacity: 1; }
/* 尊重「减少动态效果」偏好：不播视频，只留 .hero_bg 的深色底 */
@media (prefers-reduced-motion: reduce) {
  .hero_video { display: none; }
}

.hero_wave {
  position: absolute;
  left: 0; bottom: 0;
  width: 200%;
  height: 180px;
  display: block;
  transition: opacity .6s ease;
}
.hero_wave_1 { animation: waveDrift 22s linear infinite; opacity: .55; }
.hero_wave_2 { animation: waveDrift 15s linear infinite reverse; opacity: .35; height: 130px; }
@keyframes waveDrift {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* 视频铺上之后，水波叠在实拍画面上会发闷，直接淡出 */
.hero_area.video-on .hero_wave { opacity: 0; }

/* 只做必要的对比度补偿，不整片压暗：
   中心留给标题的柔和暗角 + 顶部给导航/底部给 hero_bottom 的局部渐变。
   文字可读性由各元素自身的 text-shadow 承担，overlay 不再负责全屏压暗。 */
.hero_overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(80% 64% at 50% 48%, rgba(0, 0, 0, .34) 0%, rgba(0, 0, 0, .14) 58%, rgba(0, 0, 0, 0) 100%),
    linear-gradient(180deg, rgba(0, 0, 0, .44) 0%, rgba(0, 0, 0, .14) 34%, rgba(0, 0, 0, .30) 68%, rgba(0, 0, 0, .58) 100%);
}

.hero_content {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 20px;
}
.hero_text { max-width: 900px; }

.hero_eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 5px;
  text-transform: uppercase;
  /* 「Land of Islands」用纯白，不用主题浅蓝（用户要求） */
  color: #ffffff;
  margin-bottom: 18px;
  text-shadow: 0 2px 14px rgba(0, 0, 0, .85), 0 0 30px rgba(0, 0, 0, .6);
  animation: heroFadeIn 1s ease-out both;
}

.hero_title {
  font-size: clamp(2rem, 5.5vw, 4.5rem);
  font-weight: 700;
  letter-spacing: 1.5px;
  line-height: 1.15;
  margin: 0 0 20px;
  text-shadow: 0 2px 18px rgba(0, 0, 0, .75), 0 0 48px rgba(0, 0, 0, .55), 0 1px 3px rgba(0, 0, 0, .6);
  min-height: 1.15em;
}

.cursor {
  display: inline-block;
  width: 3px;
  height: .92em;
  background: currentColor;
  vertical-align: text-bottom;
  margin-left: 3px;
  animation: cursor-blink .8s step-end infinite;
}
@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0; }
}

.hero_subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 300;
  color: rgba(255, 255, 255, .88);
  line-height: 1.7;
  margin: 0;
  text-shadow: 0 2px 16px rgba(0, 0, 0, .8), 0 0 42px rgba(0, 0, 0, .5);
  animation: heroFadeIn 1s ease-out .2s both;
}

.btn_solid, .btn_ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 50px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .3s var(--ease), box-shadow .3s ease, background .3s ease, border-color .3s ease;
}
.btn_solid {
  background: var(--accent);
  color: #fff;
}
.btn_solid:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
  color: #fff;
}
.btn_ghost {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .18);
  color: #fff;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.btn_ghost:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .35);
  color: #fff;
}

.hero_bottom {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 2;
  text-align: center;
  padding-bottom: 36px;
  animation: heroFadeIn 1s ease-out .6s both;
}

/* 底部主行动按钮：沿用参考站 (MC.XKFUN.CC) 底部按钮的白底深字胶囊 */
.hero_join_btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 11px 30px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  color: #1a1a2e;
  background: #fff;
  border-radius: 50px;
  white-space: nowrap;
  transition: transform .3s ease, box-shadow .3s ease;
}
.hero_join_btn:hover {
  color: #1a1a2e;
  transform: scale(1.05);
  box-shadow: 0 5px 20px rgba(255, 255, 255, .3);
}

.hero_ip_bar {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, .1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 50px;
  padding: 7px 7px 7px 24px;
  transition: border-color .3s ease;
}
.hero_ip_bar:hover { border-color: rgba(255, 255, 255, .4); }

.hero_ip_text {
  color: rgba(255, 255, 255, .9);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 2px;
  font-family: Consolas, "Courier New", monospace;
}

.hero_ip_btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #1a1a2e;
  background: #fff;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: transform .3s ease, box-shadow .3s ease;
  white-space: nowrap;
}
.hero_ip_btn:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 20px rgba(255, 255, 255, .3);
}
.hero_ip_btn.done { background: var(--accent); color: #fff; }

.hero_ip_tip {
  color: rgba(255, 255, 255, .62);
  font-size: 12px;
  margin: 12px 0 0;
  letter-spacing: 1px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, .85);
}
.hero_timer {
  color: rgba(255, 255, 255, .5);
  font-size: 12px;
  margin: 6px 0 0;
  letter-spacing: .5px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, .85);
}

@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ========== 子页页头 ========== */
.page_head {
  position: relative;
  padding: 150px 0 64px;
  overflow: hidden;
  background: linear-gradient(180deg, #0b1018 0%, var(--bg) 100%);
}
.page_head::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -40%;
  width: min(120vw, 900px);
  aspect-ratio: 1;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(109,179,242,.13) 0%, transparent 65%);
  pointer-events: none;
}
.page_head .container { position: relative; }
.page_head h1 {
  font-size: clamp(1.9rem, 4.4vw, 2.9rem);
  font-weight: 700;
  letter-spacing: 1px;
  margin: 0 0 14px;
}
.page_head p {
  color: var(--t2);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 620px;
  margin: 0;
}
.page_head.center { text-align: center; }
.page_head.center p { margin-left: auto; margin-right: auto; }

/* ========== 通用板块 ========== */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: clamp(60px, 9vw, 110px) 0; }
.section_alt { background: var(--bg-alt); }

.section_tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.section_tag::before {
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 4px;
  background-color: var(--accent-dim);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236db3f2' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M3 18h18M5 18V9l7-5 7 5v9M9 18v-5h6v5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

.section_header { margin-bottom: 56px; }
.section_header h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: 1px;
  margin: 0 0 16px;
}
.section_header p {
  font-size: 1.02rem;
  color: var(--t2);
  line-height: 1.75;
  max-width: 580px;
  margin: 0;
}
.section_header.center { text-align: center; }
.section_header.center p { margin-left: auto; margin-right: auto; }

/* ========== 链接箭头（供通栏图文的 .band_text 复用） ========== */
.feature_link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  transition: gap .3s ease;
}
.feature_link::after { content: "→"; transition: transform .3s ease; }
.feature_link:hover { gap: 10px; color: var(--accent); }



/* ========== 数据条 ========== */
.stat_grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}
.stat_card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: border-color .3s ease, transform .3s ease;
}
.stat_card:hover { border-color: var(--line-hi); transform: translateY(-4px); }
.stat_value {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.stat_label {
  margin-top: 8px;
  color: var(--t3);
  font-size: .82rem;
  letter-spacing: 1px;
}
/* 统计数字后的单位（人）：跟在大数字右边，小一号，避免被挤到第二行 */
.stat_unit {
  font-size: .4em;
  font-weight: 600;
  margin-left: 4px;
  letter-spacing: 0;
  vertical-align: baseline;
}

/* ========== 活动卡片 ========== */
.event_grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

.event_card {
  position: relative; /* .event_badges 是 absolute，必须由卡片提供包含块。
                         原来没写，靠 .reveal 的 transform:translateY(26px) 意外撑起包含块；
                         一旦 .reveal.in 把 transform 置为 none，或用户开启「减少动态效果」，
                         包含块消失，徽章会逃逸到页面左上角。别删。 */
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  text-align: left;
  padding: 0;
  color: inherit;
  transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
}
.event_card:hover {
  border-color: var(--line-hi);
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, .45);
}

.event_cover {
  position: relative;
  aspect-ratio: 16 / 9;
  background-size: cover;
  background-position: center;
  background-color: #0b0f18;
  overflow: hidden;
}
.event_cover svg { width: 100%; height: 100%; display: block; }
.event_card:hover .event_cover > svg { transform: scale(1.04); }
.event_cover > svg { transition: transform .6s var(--ease); }

.event_cover::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 45%;
  background: linear-gradient(180deg, transparent, rgba(10, 10, 15, .85));
  pointer-events: none;
}

.event_badges {
  position: absolute;
  top: 12px;
  left: 12px;
  display: flex;
  gap: 6px;
  z-index: 2;
  flex-wrap: wrap;
}
.event_badges.static {
  position: static;
  margin-bottom: 14px;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .5px;
  color: #fff;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  white-space: nowrap;
}
.badge_type { background: rgba(0, 0, 0, .45); border: 1px solid currentColor; }
.badge_live  { background: rgba(109, 179, 242, .9); color: #04121f; }
.badge_soon  { background: rgba(242, 168, 109, .9); color: #241305; }

.event_body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.event_date {
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 1px;
  font-family: Consolas, "Courier New", monospace;
  margin-bottom: 8px;
}
.event_title {
  font-size: 1.08rem;
  font-weight: 600;
  margin: 0 0 8px;
  line-height: 1.4;
}
.event_summary {
  font-size: .86rem;
  color: var(--t2);
  line-height: 1.7;
  margin: 0 0 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.event_meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--t3);
}
.event_meta span { display: inline-flex; align-items: center; gap: 5px; }

/* ========== 筛选栏 ========== */
.filter_bar {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.filter_row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.filter_label {
  font-size: 12px;
  color: var(--t3);
  letter-spacing: 1px;
  min-width: 44px;
  flex-shrink: 0;
}
.filter_pills { display: flex; gap: 8px; flex-wrap: wrap; }

.pill {
  padding: 6px 16px;
  border-radius: 40px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line);
  color: var(--t2);
  font-size: 13px;
  cursor: pointer;
  transition: all .25s var(--ease);
  white-space: nowrap;
}
.pill:hover { color: var(--t1); border-color: rgba(255, 255, 255, .2); }
.pill.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(109, 179, 242, .3);
}

.filter_search {
  flex: 1;
  min-width: 180px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line);
  border-radius: 40px;
  padding: 8px 16px;
  transition: border-color .25s ease;
}
.filter_search:focus-within { border-color: var(--accent); }
.filter_search svg { color: var(--t3); flex-shrink: 0; }
.filter_search input {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  outline: none;
  color: var(--t1);
  font-size: 13.5px;
}
.filter_search input::placeholder { color: var(--t4); }

.filter_result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 22px;
  font-size: 13px;
  color: var(--t3);
}
.filter_result b { color: var(--accent); font-weight: 600; }
.filter_reset {
  background: none;
  border: none;
  color: var(--t3);
  font-size: 13px;
  cursor: pointer;
  padding: 0;
  transition: color .25s ease;
}
.filter_reset:hover { color: var(--accent); }

/* ========== 空状态 ========== */
.empty_state {
  text-align: center;
  padding: 80px 20px;
  color: var(--t3);
  font-size: .9rem;
  line-height: 1.8;
}
.empty_state svg { opacity: .25; margin-bottom: 14px; }

/* ========== 开发中占位（成员名录等尚未上线的页面） ========== */
.wip_state {
  max-width: 520px;
  margin: 0 auto;
  padding: 64px 20px 76px;
  text-align: center;
}
.wip_icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 86px;
  height: 86px;
  margin: 0 auto 26px;
  border-radius: 50%;
  color: var(--accent);
  background: rgba(109, 179, 242, .07);
  border: 1px solid rgba(109, 179, 242, .22);
}
.wip_state h2 {
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--t1);
  margin: 0 0 14px;
}
.wip_state p {
  font-size: .92rem;
  line-height: 1.85;
  color: var(--t2);
  margin: 0 0 30px;
}

/* ========== 详情弹层 ========== */
.modal_overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, .78);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: none;
  overflow-y: auto;
  padding: 48px 20px;
  overscroll-behavior: contain;
}
.modal_overlay.open { display: block; }
.modal_overlay.open .modal_panel { animation: modalIn .35s var(--ease); }
@keyframes modalIn {
  from { opacity: 0; transform: translateY(24px) scale(.98); }
  to   { opacity: 1; transform: none; }
}

.modal_panel {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  background: var(--bg-panel);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 20px;
  overflow: hidden;
}

.modal_cover {
  position: relative;
  aspect-ratio: 21 / 9;
  background-size: cover;
  background-position: center;
  background-color: #0b0f18;
}
.modal_cover svg { width: 100%; height: 100%; display: block; }
.modal_cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 35%, rgba(17, 17, 24, .95) 100%);
}

.modal_close {
  position: absolute;
  top: 14px; right: 14px;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(0, 0, 0, .55);
  border: 1px solid rgba(255, 255, 255, .18);
  color: #fff;
  font-size: 20px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 4;
  transition: background .25s ease, transform .25s ease;
}
.modal_close:hover { background: var(--accent); transform: rotate(90deg); }

.modal_head {
  position: relative;
  z-index: 2;
  margin-top: -70px;
  padding: 0 32px 24px;
}
.modal_head h2 {
  font-size: clamp(1.3rem, 3vw, 1.85rem);
  font-weight: 700;
  margin: 14px 0 0;
  line-height: 1.4;
}

.modal_meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.modal_meta_item {
  background: var(--bg-panel);
  padding: 16px 20px;
}
.modal_meta_item dt {
  font-size: 11px;
  color: var(--t3);
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.modal_meta_item dd {
  margin: 0;
  font-size: .95rem;
  color: var(--t1);
  font-weight: 500;
  word-break: break-word;
}

.modal_body { padding: 26px 32px 32px; }
.modal_body p {
  color: var(--t2);
  font-size: .95rem;
  line-height: 1.9;
  margin: 0 0 16px;
  white-space: pre-line;
}
.modal_section_title {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--accent);
  margin: 26px 0 12px;
}

.gallery_grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}
.gallery_item {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line);
  background-size: cover;
  background-position: center;
  overflow: hidden;
  transition: border-color .25s ease, transform .25s ease;
  padding: 0;
  cursor: zoom-in;
  appearance: none;
  -webkit-appearance: none;
}
.gallery_item:hover { border-color: var(--line-hi); transform: scale(1.02); }
.gallery_item:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ========== 图集灯箱 ========== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1500;                 /* 高于详情弹层 1000，低于加载动画 9999 */
  display: flex;
  overflow: auto;                /* 切到原始尺寸后靠滚动查看 */
  overscroll-behavior: contain;
  padding: 5vh 5vw;
  background: rgba(4, 6, 11, .93);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
}
.lightbox.open { opacity: 1; visibility: visible; }

.lightbox_img {
  margin: auto;                  /* flex + overflow 下用 margin:auto 居中，且内容超高时不会裁掉顶部 */
  max-width: 90vw;
  max-height: 84vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .65);
  transform: scale(.96);
  transition: transform .3s var(--ease);
  user-select: none;
  -webkit-user-drag: none;
  cursor: zoom-in;
}
.lightbox.open .lightbox_img { transform: scale(1); }

/* 点图片切换「适应屏幕 ↔ 原始尺寸」——超宽幅长图在窄屏上适应之后太小，需要能看原尺寸 */
.lightbox.actual .lightbox_img {
  max-width: none;
  max-height: none;
  border-radius: 0;
  box-shadow: none;
  cursor: zoom-out;
}

.lightbox_close,
.lightbox_nav {
  position: fixed;               /* 灯箱内部可滚动，按钮不能跟着跑 */
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(10, 12, 20, .72);
  color: #fff;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.lightbox_close:hover,
.lightbox_nav:hover {
  background: rgba(109, 179, 242, .18);
  border-color: rgba(109, 179, 242, .45);
}
.lightbox_close:focus-visible,
.lightbox_nav:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.lightbox_close { top: 22px; right: 22px; font-size: 26px; line-height: 1; }
.lightbox_nav { top: 50%; transform: translateY(-50%); }
.lightbox_prev { left: 22px; }
.lightbox_next { right: 22px; }
.lightbox_nav:hover { transform: translateY(-50%) scale(1.06); }

.lightbox_count {
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  font-size: 13px;
  letter-spacing: 1px;
  color: rgba(255, 255, 255, .6);
  font-variant-numeric: tabular-nums;
}

/* 只有一张图时，左右切换与计数都没有意义 */
.lightbox.single .lightbox_nav,
.lightbox.single .lightbox_count { display: none; }

@media (prefers-reduced-motion: reduce) {
  .lightbox, .lightbox_img, .gallery_item { transition: none; }
  .lightbox_img { transform: none; }
  .gallery_item:hover { transform: none; }
}

/* ========== 开屏免责声明 ========== */
/* 未确认之前先藏起整页内容。
   遮罩是脚本注入的，可能比首帧晚几毫秒，这几毫秒足够闪出 Hero 视频和页面内容；
   consent_pending 由各页 <head> 里的内联脚本加上，main.js 插入遮罩后立刻移除。
   那一小段脚本自带 3 秒兜底，脚本异常也不会让页面一直不可见。 */
html.consent_pending body > *:not(.disclaimer_overlay):not(.loader) { visibility: hidden; }

.disclaimer_overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;                 /* 盖住详情弹层 1000 与图集灯箱 1500 */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  /* 未点「我已阅读」之前，访客不该看到站内任何内容：
     这里用不透明底色，而不是半透明 + backdrop-filter（那样后面的场景会透出来） */
  background: var(--bg-deep);
  opacity: 1;
  visibility: visible;
  transition: opacity .3s ease, visibility .3s ease;
}
.disclaimer_overlay.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.disclaimer_box {
  width: 100%;
  max-width: 480px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  padding: 34px 32px 28px;
  text-align: center;
  background: rgba(15, 15, 22, .96);
  border: 1px solid var(--line-hi);
  border-radius: 20px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .6);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}
.disclaimer_overlay:not(.hidden) .disclaimer_box { animation: modalIn .35s var(--ease); }
.disclaimer_box::-webkit-scrollbar { width: 6px; }
.disclaimer_box::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, .14); border-radius: 3px; }

.disclaimer_icon { color: rgba(242, 168, 109, .85); margin-bottom: 14px; line-height: 0; }

.disclaimer_title {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--t1);
  margin: 0 0 18px;
}

.disclaimer_list {
  margin: 0 0 20px;
  padding-left: 18px;
  text-align: left;
  font-size: .82rem;
  line-height: 1.85;
  color: var(--t2);
}
.disclaimer_list li { margin-bottom: 7px; }
.disclaimer_list li:last-child { margin-bottom: 0; }
.disclaimer_list li::marker { color: var(--t4); }
.disclaimer_list strong { color: rgba(255, 255, 255, .84); font-weight: 600; }
.disclaimer_warn { color: #ef6f6f; font-style: normal; font-weight: 600; }
.disclaimer_link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: text-decoration-thickness .15s ease;
}
.disclaimer_link:hover { text-decoration-thickness: 2px; }
.disclaimer_link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }

.disclaimer_note { font-size: .75rem; color: var(--t3); margin: 0 0 16px; }

.disclaimer_btn {
  display: inline-block;
  padding: 11px 44px;
  border-radius: 40px;
  border: 1px solid rgba(109, 179, 242, .38);
  background: rgba(109, 179, 242, .14);
  color: var(--accent);
  font: inherit;
  font-size: .88rem;
  font-weight: 600;
  letter-spacing: 2px;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.disclaimer_btn:hover {
  background: rgba(109, 179, 242, .24);
  border-color: rgba(109, 179, 242, .6);
  box-shadow: var(--shadow-accent);
}
.disclaimer_btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  .disclaimer_overlay { transition: none; }
  .disclaimer_overlay:not(.hidden) .disclaimer_box { animation: none; }
}

.modal_links { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.modal_link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: 40px;
  background: rgba(109, 179, 242, .12);
  border: 1px solid rgba(109, 179, 242, .35);
  color: var(--accent);
  font-size: 13.5px;
  font-weight: 600;
  transition: all .25s ease;
}
.modal_link:hover { background: var(--accent); color: #fff; }

/* ========== 加入我们 ========== */
.join_cards {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.join_card {
  flex: 1;
  min-width: 220px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 38px 30px;
  text-align: center;
  transition: border-color .3s ease, transform .3s ease;
}
.join_card:hover { border-color: var(--line-hi); transform: translateY(-4px); }
.join_card_icon {
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  background: var(--accent-dim);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.join_card_icon img,
.join_card_icon svg { width: 28px; height: 28px; }
.join_card_icon img {
  filter: brightness(0) saturate(100%) invert(70%) sepia(30%) saturate(900%) hue-rotate(180deg) brightness(1.1);
}
.join_card_icon img.no-filter { filter: none; width: 48px; height: 48px; border-radius: 10px; }
.join_card h4 { font-size: 1.08rem; font-weight: 600; margin: 0 0 10px; }
.join_card code {
  display: block;
  color: var(--t2);
  font-size: 14px;
  font-family: Consolas, "Courier New", monospace;
  letter-spacing: 1px;
  margin-bottom: 22px;
  background: none;
  word-break: break-all;
}
.join_copy_btn {
  display: inline-block;
  padding: 10px 28px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: transform .3s ease, box-shadow .3s ease;
}
.join_copy_btn:hover { transform: scale(1.05); box-shadow: var(--shadow-accent); color: #fff; }

/* ========== 成员网格 ========== */
.member_grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.member_card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 16px;
  text-align: center;
  transition: border-color .3s ease, transform .3s ease;
}
.member_card:hover { border-color: var(--line-hi); transform: translateY(-4px); }
.member_card img {
  width: 76px; height: 76px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, .1);
  margin-bottom: 16px;
}
.member_avatar_placeholder {
  width: 76px; height: 76px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .05);
  border: 2px dashed rgba(255, 255, 255, .1);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.member_avatar_placeholder::after {
  content: "+";
  color: rgba(255, 255, 255, .2);
  font-size: 28px;
  font-weight: 300;
}
.member_card h5 { font-size: .96rem; font-weight: 600; margin: 0 0 4px; }
.member_card span { display: block; color: var(--t3); font-size: 12px; margin-bottom: 14px; }
.member_links { display: flex; justify-content: center; gap: 6px; }
.member_links a { opacity: .4; transition: opacity .3s ease; }
.member_links a:hover { opacity: 1; }
.member_links img { width: 28px; height: 28px; border: none; border-radius: 0; filter: brightness(0) invert(1); }

/* ========== 时间轴 ========== */
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 6px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), rgba(109, 179, 242, .05));
  border-radius: 2px;
}
.timeline_item { position: relative; padding-bottom: 40px; }
.timeline_item:last-child { padding-bottom: 0; }
.timeline_item::before {
  content: "";
  position: absolute;
  left: -30px; top: 5px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(109, 179, 242, .12);
}
.timeline_date {
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 1.5px;
  font-family: Consolas, "Courier New", monospace;
  margin-bottom: 6px;
}
.timeline_item h4 { font-size: 1.05rem; font-weight: 600; margin: 0 0 8px; }
.timeline_item p { color: var(--t2); font-size: .9rem; line-height: 1.8; margin: 0; max-width: 620px; }

/* ========== 公约列表 ========== */
.rule_list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.rule_item {
  display: flex;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
}
.rule_num {
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.rule_item h4 { font-size: .98rem; font-weight: 600; margin: 4px 0 8px; }
.rule_item p { color: var(--t2); font-size: .86rem; line-height: 1.8; margin: 0; }

/* ========== 联系我们 ========== */
.contact_row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.contact_item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 40px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--t2);
  font-size: 14px;
  transition: all .25s ease;
}
.contact_item:hover { border-color: var(--accent); color: var(--t1); }
.contact_item svg { color: var(--accent); flex-shrink: 0; }

/* ========== 页脚 ========== */
.footer_section {
  background: var(--bg-deep);
  padding: 48px 0 36px;
  text-align: center;
  border-top: 1px solid var(--line);
}
.footer_links {
  display: flex;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.footer_links a {
  color: var(--t2);
  font-size: 14px;
  font-weight: 500;
  transition: color .3s ease;
}
.footer_links a:hover { color: var(--t1); }
.footer_brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer_brand img { width: auto; height: 26px; }
.footer_brand span { font-size: 15px; font-weight: 600; letter-spacing: 1px; }
.footer_copy { color: rgba(255, 255, 255, .25); font-size: 12.5px; margin: 0; line-height: 1.9; }
.footer_copy a { color: rgba(255, 255, 255, .4); }
.footer_copy a:hover { color: var(--accent); }

/* ========== 进行中 / 即将开始 横幅 ========== */
.live_section { padding: clamp(40px, 6vw, 72px) 0 0; }

.live_head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.live_head h2 {
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  font-weight: 700;
  margin: 0;
  letter-spacing: .5px;
}
.live_head .live_more {
  color: var(--accent);
  font-size: 13.5px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.live_head .live_more:hover { gap: 10px; color: var(--accent); }

.live_card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  isolation: isolate;
  background: #0b111c;
  border: 1px solid rgba(242, 168, 109, .3);
  animation: liveIn .6s var(--ease) both;
}
@keyframes liveIn {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}
.live_card.is_live {
  border-color: rgba(109, 179, 242, .45);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .5);
}

.live_bg { position: absolute; inset: 0; z-index: 0; }
.live_bg > svg { width: 100%; height: 100%; display: block; }
.live_bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8, 11, 19, .97) 0%, rgba(8, 11, 19, .88) 48%, rgba(8, 11, 19, .58) 100%);
}

.live_inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  padding: clamp(24px, 3.4vw, 40px);
}

.live_left { flex: 1; min-width: 0; }

.live_flag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 15px;
  border-radius: 30px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.live_flag.soon { background: #f2a86d; color: #1a1005; }

.live_dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: currentColor;
  animation: livePulse 1.6s ease-in-out infinite;
}
@keyframes livePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .3; transform: scale(.7); }
}

.live_left h3 {
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  font-weight: 700;
  margin: 0 0 12px;
  line-height: 1.35;
}
.live_left p {
  color: var(--t2);
  font-size: .94rem;
  line-height: 1.8;
  margin: 0 0 18px;
  max-width: 540px;
}
.live_meta {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--t3);
}
.live_meta span { display: inline-flex; align-items: center; gap: 6px; }

.live_right { flex: 0 0 auto; }
.live_cd_label {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--t3);
  margin-bottom: 10px;
}
.live_cd { display: flex; gap: 8px; }
.live_cd_unit {
  min-width: 58px;
  padding: 10px 6px 8px;
  text-align: center;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.live_cd_unit b {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.live_cd_unit small {
  display: block;
  margin-top: 4px;
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--t3);
}
.live_actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.live_actions .btn_solid,
.live_actions .btn_ghost { padding: 11px 24px; font-size: 14px; }

.live_extra {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--t3);
}
.live_extra a { color: var(--accent); }

/* 列表里「进行中」的卡片加亮边框 */
.event_card.live { border-color: rgba(109, 179, 242, .38); }
.event_card.live:hover { border-color: rgba(109, 179, 242, .7); }

/* ========== 世界观 ========== */
.world_grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.world_card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: border-color .3s ease, transform .3s ease;
}
.world_card:hover { border-color: var(--line-hi); transform: translateY(-4px); }
.world_card h4 {
  font-size: .95rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1px;
  margin: 0 0 18px;
}
.world_row {
  display: flex;
  gap: 14px;
  padding: 7px 0;
  font-size: .9rem;
  line-height: 1.7;
}
.world_row dt { flex: 0 0 46px; color: var(--t3); }
.world_row dd { margin: 0; color: var(--t1); }
.world_row em { font-style: normal; color: var(--t4); }

.world_note {
  margin: 26px 0 0;
  color: var(--t2);
  font-size: .9rem;
  line-height: 1.85;
}

/* ========== 通栏图文（关于我们 · 左右对开） ==========
   整幅铺满、矩形无圆角、行与行紧贴；
   文字与图片之间由图片侧「淡出」融进底色，形成中间过渡。 */
.band_section {
  /* 与 .container 的内容左边缘对齐，避免通栏与上下板块错位 */
  --gutter: max(24px, calc((100vw - 1140px) / 2 + 24px));
  background: var(--bg);
  padding-bottom: 0;
}

.band_head { padding-inline: var(--gutter); }

.band_rows { display: block; }

.band_row {
  position: relative;
  display: flex;
  align-items: stretch;
  min-height: clamp(340px, 34vw, 480px);
}
.band_row.band_reverse { flex-direction: row-reverse; }

.band_text {
  flex: 0 0 50%;
  max-width: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(40px, 4.6vw, 80px) clamp(32px, 4vw, 76px) clamp(40px, 4.6vw, 80px) var(--gutter);
}
.band_row.band_reverse .band_text {
  padding-left: clamp(32px, 4vw, 76px);
  padding-right: var(--gutter);
}

.band_media {
  flex: 0 0 50%;
  max-width: 50%;
  position: relative;
  overflow: hidden;
  background: #0b0f18;
  /* 图片靠文字那一侧淡出 —— 这就是「中间过渡」 */
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 16%);
          mask-image: linear-gradient(to right, transparent 0%, #000 16%);
}
.band_row.band_reverse .band_media {
  -webkit-mask-image: linear-gradient(to left, transparent 0%, #000 16%);
          mask-image: linear-gradient(to left, transparent 0%, #000 16%);
}
.band_media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .8s var(--ease);
}
.band_row:hover .band_media img { transform: scale(1.04); }

.band_index {
  display: block;
  font-size: clamp(34px, 3.6vw, 52px);
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, .07);
  margin-bottom: 10px;
  pointer-events: none;
  user-select: none;
}

.band_text h3 {
  font-size: clamp(1.35rem, 2.3vw, 1.95rem);
  font-weight: 700;
  line-height: 1.38;
  margin: 0 0 16px;
}

.band_text p {
  font-size: clamp(.94rem, 1.05vw, 1.06rem);
  color: var(--t2);
  line-height: 1.88;
  margin: 0 0 22px;
  max-width: 32em;
}

.band_text .feature_link { align-self: flex-start; }

/* ========== 进场动画 ========== */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero_wave_1, .hero_wave_2 { animation: none; }
  html { scroll-behavior: auto; }
}