/* ============================================================
   雷霆复古 · PC 官网宣传页样式
   结构：变量 → 基础 → 通用组件 → 导航 → 首屏 → 公告 → 轮播
        → 视频 → 特色 → 下载 → 充值客服 → 页脚 → 悬浮栏 → 弹窗
   ============================================================ */

:root {
  --c-bg: #090807;
  --c-bg-2: #0e0c09;
  --c-panel: #14110c;
  --c-gold: #d9a95e;
  --c-gold-light: #f4d7a1;
  --c-gold-deep: #8a5f22;
  --c-text: #ded2bd;
  --c-muted: #948873;
  --c-line: rgba(217, 169, 94, .16);
  --wrap: min(1440px, calc(100% - 96px));
  --font: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans CN", sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; }
button { font-family: inherit; }
a { color: inherit; }

::selection { background: rgba(217, 169, 94, .32); color: #fff6e5; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #070605; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #a97c3c, #5f4318);
  border: 2px solid #070605;
}

/* ---------- 背景光效 ---------- */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.page-bg__glow {
  position: absolute;
  top: -30%;
  left: 50%;
  width: 140vw;
  height: 90vh;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at 50% 50%, rgba(168, 112, 38, .14), transparent 62%);
}
.page-bg__noise {
  position: absolute;
  inset: 0;
  z-index: 9998;
  opacity: .03;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

main, .footer { position: relative; z-index: 2; }

/* ---------- 通用：区块标题 ---------- */
.section {
  position: relative;
  padding: 112px 0;
}
.section__head {
  width: var(--wrap);
  margin: 0 auto 56px;
  text-align: center;
}
.section__kicker {
  display: block;
  margin-bottom: 14px;
  font-size: 11px;
  letter-spacing: .52em;
  text-indent: .52em;
  color: rgba(217, 169, 94, .55);
}
.section__title {
  position: relative;
  display: inline-block;
  margin: 0;
  padding: 0 44px;
  font-size: clamp(28px, 3.1vw, 42px);
  font-weight: 900;
  letter-spacing: .14em;
  text-indent: .14em;
  line-height: 1.3;
  background: linear-gradient(180deg, #fff8e9 0%, #f1d5a4 46%, #c2914b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 6px 18px rgba(0, 0, 0, .7));
}
.section__title::before,
.section__title::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 34px;
  height: 1px;
}
.section__title::before {
  right: 100%;
  background: linear-gradient(90deg, transparent, rgba(217, 169, 94, .7));
}
.section__title::after {
  left: 100%;
  background: linear-gradient(90deg, rgba(217, 169, 94, .7), transparent);
}
.section__title--left { padding-left: 0; }
.section__title--left::before,
.section__title--left::after { display: none; }
.section__desc {
  margin: 16px 0 0;
  font-size: 14px;
  letter-spacing: .12em;
  color: var(--c-muted);
}

/* ---------- 通用：按钮 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  height: 60px;
  padding: 0 46px;
  border: 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .18em;
  text-decoration: none;
  cursor: pointer;
  overflow: hidden;
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  transition: transform .28s ease, filter .28s ease;
}
.btn > * { position: relative; z-index: 2; }
.btn--gold {
  background: linear-gradient(180deg, #ffe9bb 0%, #e9bc76 38%, #c9903f 64%, #a06b1c 100%);
  color: #2b1a05;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .6), inset 0 -2px 0 rgba(0, 0, 0, .28);
}
.btn--gold::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, .5), transparent 56%);
  opacity: .7;
  z-index: 1;
}
.btn--gold::after {
  content: "";
  position: absolute;
  top: -10%;
  bottom: -10%;
  left: -90px;
  width: 60px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .62), transparent);
  transform: skewX(-22deg);
  transition: left .65s ease;
  z-index: 3;
}
.btn--gold:hover { filter: brightness(1.06); transform: translateY(-3px); }
.btn--gold:hover::after { left: 120%; }
.btn--ghost {
  background: rgba(12, 10, 8, .55);
  color: #e6d2ad;
  border: 1px solid rgba(217, 169, 94, .42);
  backdrop-filter: blur(6px);
}
.btn--ghost:hover {
  border-color: rgba(217, 169, 94, .85);
  background: rgba(34, 27, 18, .72);
  transform: translateY(-3px);
}
.btn--sm { height: 52px; padding: 0 34px; font-size: 14px; }
.btn--block { width: 100%; }
.btn i {
  font-style: normal;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .1em;
  padding-left: 12px;
  border-left: 1px solid rgba(43, 26, 5, .28);
  opacity: .75;
}
.btn__play {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 6px 0 6px 10px;
  border-color: transparent transparent transparent currentColor;
}

/* ---------- 通用：滚动入场 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .85s cubic-bezier(.2, .7, .3, 1), transform .85s cubic-bezier(.2, .7, .3, 1);
  transition-delay: var(--delay, 0ms);
}
[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ============================================================
   顶部导航
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 28px;
  height: 82px;
  padding: 0 clamp(24px, 4vw, 64px);
  transition: height .35s ease, background .35s ease;
}
.nav::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(6, 5, 4, .9), rgba(6, 5, 4, 0));
  transition: opacity .35s ease;
}
.nav.is-scrolled {
  height: 68px;
  background: rgba(9, 8, 7, .9);
  backdrop-filter: blur(16px) saturate(1.15);
  border-bottom: 1px solid rgba(217, 169, 94, .14);
}
.nav.is-scrolled::after { opacity: 0; }

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}
.brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  font-size: 22px;
  font-weight: 900;
  color: #f3d9a9;
  border: 1px solid rgba(217, 169, 94, .52);
  background: linear-gradient(155deg, rgba(217, 169, 94, .22), rgba(0, 0, 0, .25));
  clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.3; }
.brand__text strong {
  font-size: 18px;
  letter-spacing: .18em;
  color: #f2ddb6;
}
.brand__text em {
  font-style: normal;
  font-size: 9px;
  letter-spacing: .3em;
  color: rgba(217, 169, 94, .5);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}
.nav__menu a {
  position: relative;
  padding: 10px 15px;
  font-size: 14px;
  letter-spacing: .12em;
  color: #b6a894;
  text-decoration: none;
  transition: color .25s;
}
.nav__menu a::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 3px;
  height: 1px;
  background: var(--c-gold);
  transform: scaleX(0);
  transition: transform .3s ease;
}
.nav__menu a:hover,
.nav__menu a.is-active { color: #f5e3c2; }
.nav__menu a:hover::after,
.nav__menu a.is-active::after { transform: scaleX(1); }

.nav__actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.nav-btn {
  height: 38px;
  padding: 0 18px;
  font-size: 13px;
  letter-spacing: .12em;
  color: #d6c3a1;
  background: rgba(16, 13, 10, .55);
  border: 1px solid rgba(217, 169, 94, .26);
  cursor: pointer;
  transition: .25s;
}
.nav-btn:hover {
  color: #fff0d2;
  border-color: rgba(217, 169, 94, .7);
  background: rgba(217, 169, 94, .12);
}
.nav-btn--gold {
  color: #2b1a05;
  font-weight: 700;
  border-color: transparent;
  background: linear-gradient(180deg, #f2d199, #d2a05a 55%, #b9822f);
}
.nav-btn--gold:hover {
  color: #2b1a05;
  filter: brightness(1.08);
  background: linear-gradient(180deg, #ffe6b6, #dfae66 55%, #c48d36);
}

/* ============================================================
   首屏
   ============================================================ */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 150px 24px 130px;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: -3%;
  background-position: center 42%;
  background-size: cover;
  background-repeat: no-repeat;
  filter: brightness(.52) contrast(1.1) saturate(.9);
  animation: heroZoom 28s ease-in-out infinite alternate;
}
@keyframes heroZoom {
  from { transform: scale(1); }
  to { transform: scale(1.09); }
}
.hero__vignette {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 44%, rgba(9, 8, 7, 0) 0%, rgba(9, 8, 7, .2) 44%, rgba(9, 8, 7, .9) 100%),
    linear-gradient(180deg, rgba(9, 8, 7, .88) 0%, rgba(9, 8, 7, 0) 24%, rgba(9, 8, 7, 0) 58%, var(--c-bg) 100%);
}
.hero__inner {
  position: relative;
  z-index: 2;
  width: min(1080px, 100%);
  text-align: center;
}
.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  padding: 9px 24px;
  font-size: 12px;
  letter-spacing: .26em;
  text-indent: .26em;
  color: #d8c3a0;
  border: 1px solid rgba(217, 169, 94, .28);
  background: rgba(9, 8, 7, .42);
  backdrop-filter: blur(4px);
}
.hero__tag-line {
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(217, 169, 94, .8));
}
.hero__tag-line:last-child {
  background: linear-gradient(90deg, rgba(217, 169, 94, .8), transparent);
}
.hero__title {
  margin: 22px 0 0;
  font-size: clamp(62px, 9vw, 146px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: .1em;
  text-indent: .1em;
  background: linear-gradient(180deg, #fffdf6 0%, #f8e3b6 30%, #e2b66c 52%, #b6802f 74%, #7a5013 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter:
    drop-shadow(0 3px 0 rgba(0, 0, 0, .5))
    drop-shadow(0 20px 46px rgba(0, 0, 0, .8))
    drop-shadow(0 0 70px rgba(217, 169, 94, .22));
}
.hero__en {
  margin: 12px 0 0;
  font-size: 11px;
  letter-spacing: .68em;
  text-indent: .68em;
  color: rgba(217, 169, 94, .62);
}
.hero__sub {
  margin: 26px auto 0;
  max-width: 620px;
  font-size: 15px;
  line-height: 2;
  letter-spacing: .1em;
  color: #bdae96;
}
.hero__actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}
.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: min(760px, 100%);
  margin: 62px auto 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(217, 169, 94, .14);
  border-bottom: 1px solid rgba(217, 169, 94, .14);
  background: linear-gradient(90deg, transparent, rgba(217, 169, 94, .04), transparent);
}
.hero__stats li {
  position: relative;
  padding: 22px 12px;
  text-align: center;
}
.hero__stats li + li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24%;
  bottom: 24%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(217, 169, 94, .3), transparent);
}
.hero__stats strong {
  display: block;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: .04em;
  color: #efd2a0;
}
.hero__stats span {
  font-size: 12px;
  letter-spacing: .18em;
  color: #8b8070;
}
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 26px;
  z-index: 3;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  letter-spacing: .4em;
  text-indent: .4em;
  color: rgba(217, 169, 94, .45);
}
.hero__scroll::after {
  content: "";
  width: 1px;
  height: 42px;
  background: linear-gradient(180deg, rgba(217, 169, 94, .7), transparent);
  animation: scrollLine 2.2s ease-in-out infinite;
  transform-origin: top;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); opacity: 0; }
  40% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

/* ============================================================
   开区公告
   ============================================================ */
.notice {
  position: relative;
  z-index: 4;
  margin-top: -58px;
}
.notice__inner {
  display: flex;
  align-items: center;
  gap: 22px;
  width: var(--wrap);
  height: 54px;
  margin: 0 auto;
  padding: 0 26px;
  background: linear-gradient(90deg, rgba(32, 25, 16, .94), rgba(15, 12, 9, .88));
  border: 1px solid rgba(217, 169, 94, .2);
  backdrop-filter: blur(10px);
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, .9);
}
.notice__label {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
  padding-right: 22px;
  font-size: 13px;
  letter-spacing: .14em;
  color: #f0d3a0;
  border-right: 1px solid rgba(217, 169, 94, .18);
}
.notice__label i {
  width: 6px;
  height: 6px;
  background: var(--c-gold);
  transform: rotate(45deg);
  animation: blink 1.8s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: .25; }
}
.notice__track {
  flex: 1;
  min-width: 0;
  width: 100%;
  overflow: hidden;
  height: 100%;
  display: flex;
  align-items: center;
}
.notice__text {
  display: flex;
  white-space: nowrap;
  will-change: transform;
  animation: marquee var(--marquee-dur, 42s) linear infinite;
}
.notice__text:hover { animation-play-state: paused; }
.notice__group {
  display: flex;
  gap: 90px;
  padding-right: 90px;
}
.notice__item { font-size: 13.5px; letter-spacing: .06em; color: #b9a98f; }
.notice__item::before {
  content: "◆";
  margin-right: 12px;
  font-size: 8px;
  color: rgba(217, 169, 94, .65);
  vertical-align: middle;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============================================================
   轮播
   ============================================================ */
.carousel {
  width: var(--wrap);
  margin: 0 auto;
}
.carousel__viewport {
  position: relative;
  aspect-ratio: 16 / 7.6;
  overflow: hidden;
  background: #080706;
  border: 1px solid rgba(217, 169, 94, .22);
  box-shadow: 0 50px 110px -50px rgba(0, 0, 0, .95);
}
.carousel__viewport::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  box-shadow: inset 0 0 90px rgba(0, 0, 0, .55);
}
.carousel__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity .9s ease, visibility .9s;
}
.carousel__slide.is-active {
  opacity: 1;
  visibility: visible;
}
.carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.07);
  transition: transform 7.5s linear;
}
.carousel__slide.is-active img { transform: scale(1); }
.carousel__slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(9, 8, 7, .5) 0%, rgba(9, 8, 7, 0) 26%, rgba(9, 8, 7, .06) 52%, rgba(9, 8, 7, .92) 100%),
    linear-gradient(90deg, rgba(9, 8, 7, .55) 0%, rgba(9, 8, 7, 0) 42%);
}
.carousel__caption {
  position: absolute;
  left: clamp(28px, 5vw, 74px);
  bottom: clamp(30px, 4.4vw, 62px);
  z-index: 2;
  max-width: 620px;
}
.carousel__tag {
  display: inline-block;
  padding: 5px 13px;
  font-size: 11px;
  letter-spacing: .22em;
  text-indent: .22em;
  color: #efd4a5;
  border: 1px solid rgba(217, 169, 94, .45);
  background: rgba(9, 8, 7, .35);
}
.carousel__title {
  margin: 15px 0 8px;
  font-size: clamp(24px, 2.6vw, 38px);
  font-weight: 900;
  letter-spacing: .08em;
  color: #f7e6c8;
  text-shadow: 0 4px 24px rgba(0, 0, 0, .85);
}
.carousel__desc {
  margin: 0;
  font-size: 14px;
  letter-spacing: .08em;
  color: rgba(234, 220, 198, .72);
}
.carousel__index {
  position: absolute;
  right: clamp(28px, 5vw, 60px);
  bottom: clamp(18px, 2.6vw, 36px);
  z-index: 2;
  font-family: Impact, "Arial Black", sans-serif;
  font-size: clamp(56px, 8vw, 112px);
  line-height: 1;
  letter-spacing: .04em;
  color: rgba(255, 255, 255, .08);
  pointer-events: none;
}
.carousel__arrow {
  position: absolute;
  top: 50%;
  z-index: 5;
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  transform: translateY(-50%);
  color: #e8d2ab;
  background: rgba(10, 8, 6, .45);
  border: 1px solid rgba(217, 169, 94, .3);
  backdrop-filter: blur(6px);
  cursor: pointer;
  transition: .25s;
}
.carousel__arrow svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.carousel__arrow:hover {
  color: #2a1a05;
  background: rgba(226, 182, 108, .95);
  border-color: transparent;
}
.carousel__arrow--prev { left: 20px; }
.carousel__arrow--next { right: 20px; }
.carousel__progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
  height: 2px;
  background: rgba(255, 255, 255, .08);
}
.carousel__progress i {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #8a5f22, #f4d7a1);
  box-shadow: 0 0 12px rgba(244, 215, 161, .55);
}
.carousel__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 18px;
}
.carousel__thumbs {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}
.carousel__thumbs::-webkit-scrollbar { display: none; }
.carousel__thumb {
  position: relative;
  flex-shrink: 0;
  width: 128px;
  height: 72px;
  padding: 0;
  border: 1px solid rgba(217, 169, 94, .16);
  background: #0b0a08;
  overflow: hidden;
  cursor: pointer;
  opacity: .46;
  filter: grayscale(.35);
  transition: .3s;
}
.carousel__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.carousel__thumb:hover { opacity: .85; }
.carousel__thumb.is-active {
  opacity: 1;
  filter: none;
  border-color: rgba(244, 215, 161, .9);
  box-shadow: 0 0 0 1px rgba(244, 215, 161, .2), 0 10px 26px -10px rgba(244, 215, 161, .6);
}
.carousel__count {
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-shrink: 0;
  font-family: Impact, "Arial Black", sans-serif;
  letter-spacing: .06em;
}
.carousel__count b { font-size: 30px; color: #f1d6a6; }
.carousel__count span { color: rgba(217, 169, 94, .35); }
.carousel__count em { font-style: normal; font-size: 15px; color: #7c7264; }

/* ============================================================
   宣传视频
   ============================================================ */
.section--video { padding-top: 40px; }
.video-layout {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: clamp(36px, 5vw, 84px);
  align-items: center;
  width: var(--wrap);
  margin: 0 auto;
}
.video-copy__desc {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 2;
  letter-spacing: .06em;
  color: var(--c-muted);
}
.video-points {
  margin: 26px 0 34px;
  padding: 0;
  list-style: none;
}
.video-points li {
  position: relative;
  padding: 9px 0 9px 26px;
  font-size: 14px;
  letter-spacing: .06em;
  color: #c4b49a;
  border-bottom: 1px solid rgba(217, 169, 94, .08);
}
.video-points li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 19px;
  width: 7px;
  height: 7px;
  background: linear-gradient(135deg, #f4d7a1, #a5701f);
  transform: rotate(45deg);
}
.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
  border: 1px solid rgba(217, 169, 94, .28);
  box-shadow: 0 60px 100px -56px #000;
  cursor: pointer;
}
.video-frame__poster {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(.68) saturate(.92);
  transition: transform 1.2s ease, filter .45s ease;
}
.video-frame:hover .video-frame__poster {
  transform: scale(1.04);
  filter: brightness(.82) saturate(1);
}
.video-frame__shade {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(0, 0, 0, .1), rgba(0, 0, 0, .55));
  pointer-events: none;
}
.video-frame__play {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 88px;
  height: 88px;
  margin: auto;
  display: grid;
  place-items: center;
  color: #f6dcaa;
  background: rgba(10, 8, 6, .38);
  border: 1px solid rgba(244, 215, 161, .65);
  border-radius: 50%;
  backdrop-filter: blur(4px);
  cursor: pointer;
  transition: .3s;
}
.video-frame__play::before {
  content: "";
  position: absolute;
  inset: -1px;
  border: 1px solid rgba(244, 215, 161, .38);
  border-radius: 50%;
  animation: playPulse 2.6s ease-out infinite;
}
@keyframes playPulse {
  0% { transform: scale(1); opacity: .8; }
  75% { transform: scale(1.45); opacity: 0; }
  100% { transform: scale(1.45); opacity: 0; }
}
.video-frame__play svg {
  width: 30px;
  height: 30px;
  margin-left: 5px;
  fill: currentColor;
}
.video-frame__play:hover {
  color: #2a1a05;
  background: rgba(226, 182, 108, .95);
  border-color: transparent;
}
.video-frame__hint {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  z-index: 2;
  text-align: center;
  font-size: 11px;
  letter-spacing: .34em;
  text-indent: .34em;
  color: rgba(232, 210, 171, .55);
  pointer-events: none;
}
.video-frame.is-playing { cursor: default; }
.video-frame.is-playing .video-frame__play,
.video-frame.is-playing .video-frame__hint,
.video-frame.is-playing .video-frame__shade { display: none; }
.video-frame__el,
.video-frame__iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #000;
}
.video-frame__el { object-fit: contain; }
.video-frame__empty {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 30px;
  text-align: center;
  font-size: 13px;
  line-height: 1.9;
  letter-spacing: .06em;
  color: #9d9180;
  background: rgba(8, 7, 6, .92);
}
.video-frame__empty b { color: #d9bb8a; font-weight: 600; }

/* ============================================================
   游戏特色
   ============================================================ */
.feature-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  width: var(--wrap);
  margin: 0 auto;
}
.feature {
  position: relative;
  flex: 0 0 calc((100% - 36px) / 3);
  padding: 38px 34px 36px;
  overflow: hidden;
  background: linear-gradient(163deg, rgba(30, 25, 18, .72), rgba(12, 10, 8, .92));
  border: 1px solid rgba(217, 169, 94, .1);
  transition: transform .4s ease, border-color .4s ease, background .4s ease;
}
.feature::before,
.feature::after {
  content: "";
  position: absolute;
  width: 42px;
  height: 42px;
  opacity: .55;
  transition: width .4s ease, height .4s ease, opacity .4s ease;
}
.feature::before {
  top: 0;
  left: 0;
  border-top: 1px solid rgba(217, 169, 94, .5);
  border-left: 1px solid rgba(217, 169, 94, .5);
}
.feature::after {
  right: 0;
  bottom: 0;
  border-right: 1px solid rgba(217, 169, 94, .5);
  border-bottom: 1px solid rgba(217, 169, 94, .5);
}
.feature:hover {
  transform: translateY(-6px);
  border-color: rgba(217, 169, 94, .32);
  background: linear-gradient(163deg, rgba(42, 34, 23, .82), rgba(15, 12, 9, .95));
}
.feature:hover::before,
.feature:hover::after {
  width: 58px;
  height: 58px;
  opacity: 1;
}
.feature__icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-bottom: 24px;
  color: #e2bb7c;
  border: 1px solid rgba(217, 169, 94, .24);
  background: radial-gradient(circle at 50% 26%, rgba(217, 169, 94, .2), transparent 72%);
}
.feature__icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.feature__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .1em;
  color: #eedcbe;
}
.feature__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.95;
  letter-spacing: .02em;
  color: #8d8271;
}

/* ============================================================
   客户端下载
   ============================================================ */
.section--download {
  padding-bottom: 96px;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(168, 112, 38, .1), transparent 60%);
}
.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  width: var(--wrap);
  margin: 0 auto;
}
.download-card {
  position: relative;
  display: block;
  width: 100%;
  padding: 42px 30px 36px;
  text-align: center;
  background: linear-gradient(180deg, rgba(27, 22, 16, .92), rgba(11, 9, 7, .96));
  border: 1px solid rgba(217, 169, 94, .12);
  cursor: pointer;
  overflow: hidden;
  transition: transform .35s ease, border-color .35s ease, background .35s ease;
}
.download-card:hover {
  transform: translateY(-7px);
  border-color: rgba(217, 169, 94, .48);
  background: linear-gradient(180deg, rgba(36, 29, 20, .95), rgba(14, 11, 8, .98));
}
.download-card--hot {
  border-color: rgba(217, 169, 94, .42);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(217, 169, 94, .14), transparent 60%),
    linear-gradient(180deg, rgba(42, 32, 18, .95), rgba(13, 10, 7, .98));
}
.download-card__badge {
  position: absolute;
  top: 0;
  right: 0;
  padding: 6px 15px;
  font-size: 11px;
  letter-spacing: .2em;
  text-indent: .2em;
  color: #2a1a05;
  background: linear-gradient(135deg, #f4d7a1, #b9822f);
}
.download-card__icon {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  margin: 0 auto 20px;
  color: #e6c184;
  border: 1px solid rgba(217, 169, 94, .28);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 169, 94, .14), transparent 70%);
}
.download-card__icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.download-card__name {
  display: block;
  margin: 0 0 8px;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: .14em;
  color: #f0dcba;
}
.download-card__desc {
  display: block;
  margin: 0 0 22px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: #8b8070;
}
.download-card__btn { display: inline-flex; }
.download-card__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 28px;
  font-size: 13px;
  letter-spacing: .16em;
  color: #f0d9b1;
  border: 1px solid rgba(217, 169, 94, .38);
  transition: .3s;
}
.download-card:hover .download-card__btn {
  color: #2a1a05;
  border-color: transparent;
  background: linear-gradient(180deg, #f4d7a1, #b9822f);
}
.download-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: var(--wrap);
  margin: 30px auto 0;
  border: 1px solid rgba(217, 169, 94, .1);
  background: rgba(217, 169, 94, .025);
}
.download-meta__item {
  position: relative;
  padding: 18px 12px;
  text-align: center;
}
.download-meta__item + .download-meta__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 26%;
  bottom: 26%;
  width: 1px;
  background: rgba(217, 169, 94, .12);
}
.download-meta__item span {
  display: block;
  font-size: 11px;
  letter-spacing: .2em;
  color: #7d7364;
}
.download-meta__item b {
  display: block;
  margin-top: 5px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
  color: #ddc8a5;
}

/* ============================================================
   充值 & 客服
   ============================================================ */
.section--service { padding-top: 20px; }
.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  width: var(--wrap);
  margin: 0 auto;
}
.panel {
  position: relative;
  padding: 46px 44px 42px;
  overflow: hidden;
  border: 1px solid rgba(217, 169, 94, .16);
  background: linear-gradient(160deg, rgba(30, 24, 17, .88), rgba(11, 9, 7, .96));
}
.panel--recharge {
  background:
    radial-gradient(ellipse at 88% 12%, rgba(217, 169, 94, .16), transparent 56%),
    linear-gradient(160deg, rgba(38, 28, 16, .94), rgba(12, 9, 7, .97));
}
.panel__kicker {
  display: block;
  margin-bottom: 10px;
  font-size: 10px;
  letter-spacing: .5em;
  text-indent: .5em;
  color: rgba(217, 169, 94, .5);
}
.panel__title {
  margin: 0 0 10px;
  font-size: 30px;
  font-weight: 900;
  letter-spacing: .12em;
  color: #f3ddb5;
}
.panel__desc {
  margin: 0 0 30px;
  font-size: 13.5px;
  letter-spacing: .06em;
  color: #948873;
}
.panel__tips {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.panel__tips li {
  position: relative;
  padding-left: 18px;
  font-size: 12px;
  line-height: 2.1;
  color: #7f7465;
}
.panel__tips li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 12px;
  width: 5px;
  height: 5px;
  background: rgba(217, 169, 94, .55);
  transform: rotate(45deg);
}
.panel__seal {
  position: absolute;
  right: 26px;
  top: 50%;
  display: grid;
  place-items: center;
  width: 150px;
  height: 150px;
  transform: translateY(-50%) rotate(-9deg);
  font-size: 62px;
  font-weight: 900;
  color: rgba(217, 169, 94, .09);
  border: 2px solid rgba(217, 169, 94, .1);
  border-radius: 50%;
  pointer-events: none;
}
.panel--recharge .btn { max-width: 300px; }
.recharge-qr {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
  cursor: pointer;
}
.recharge-qr[hidden] { display: none; }
.recharge-qr img {
  width: 96px;
  height: 96px;
  padding: 5px;
  background: #0a0908;
  border: 1px solid rgba(217, 169, 94, .26);
}
.recharge-qr__text strong {
  display: block;
  font-size: 14px;
  letter-spacing: .12em;
  color: #e9d5b1;
}
.recharge-qr__text span {
  font-size: 12px;
  color: #857a69;
}
.service-info { margin-top: 4px; }
.service-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(217, 169, 94, .12);
}
.service-row__label {
  width: 92px;
  flex-shrink: 0;
  font-size: 12.5px;
  letter-spacing: .1em;
  color: #8a7f6f;
}
.service-row b {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .06em;
  color: #e8d4b0;
}
.copy-btn {
  margin-left: auto;
  padding: 5px 13px;
  font-size: 11.5px;
  letter-spacing: .1em;
  color: #c3ad88;
  background: none;
  border: 1px solid rgba(217, 169, 94, .26);
  cursor: pointer;
  transition: .22s;
}
.copy-btn:hover {
  color: #2a1a05;
  background: rgba(226, 182, 108, .9);
  border-color: transparent;
}
.service-qr {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
}
.service-qr img {
  width: 108px;
  height: 108px;
  padding: 5px;
  background: #0a0908;
  border: 1px solid rgba(217, 169, 94, .26);
}
.service-qr__text strong {
  display: block;
  font-size: 15px;
  letter-spacing: .12em;
  color: #e9d5b1;
}
.service-qr__text span {
  font-size: 12px;
  color: #857a69;
}

/* ============================================================
   页脚
   ============================================================ */
.footer {
  padding: 62px 0 44px;
  border-top: 1px solid rgba(217, 169, 94, .12);
  background: rgba(6, 5, 4, .7);
}
.footer__inner {
  width: var(--wrap);
  margin: 0 auto;
  text-align: center;
}
.footer__brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 26px;
  text-align: left;
}
.footer__brand strong {
  display: block;
  font-size: 17px;
  letter-spacing: .18em;
  color: #ecd8b5;
}
.footer__brand em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: .16em;
  color: #857a69;
}
.footer__tips {
  max-width: 920px;
  margin: 0 auto 18px;
  font-size: 12px;
  line-height: 2.1;
  color: #6d6456;
}
.footer__copy {
  margin: 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: #544c40;
}

/* ============================================================
   右侧悬浮栏
   ============================================================ */
.float-bar {
  position: fixed;
  right: 20px;
  top: 50%;
  z-index: 70;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transform: translateY(-50%);
}
.float-bar__btn {
  position: relative;
  width: 48px;
  height: 48px;
  padding: 0;
  display: grid;
  place-items: center;
  color: #c9b28c;
  background: rgba(14, 11, 9, .86);
  border: 1px solid rgba(217, 169, 94, .2);
  backdrop-filter: blur(8px);
  cursor: pointer;
  transition: .25s;
}
.float-bar__btn svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.float-bar__btn span {
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  padding: 6px 13px;
  font-size: 12px;
  letter-spacing: .08em;
  white-space: nowrap;
  color: #e6d1ab;
  background: rgba(20, 16, 12, .96);
  border: 1px solid rgba(217, 169, 94, .25);
  opacity: 0;
  transform: translateY(-50%) translateX(6px);
  pointer-events: none;
  transition: .25s;
}
.float-bar__btn:hover {
  color: #2a1a05;
  background: rgba(226, 182, 108, .95);
  border-color: transparent;
}
.float-bar__btn:hover span {
  opacity: 1;
  transform: translateY(-50%);
}

/* ============================================================
   弹窗
   ============================================================ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  padding: 24px;
  visibility: hidden;
  opacity: 0;
  transition: opacity .25s ease, visibility .25s;
}
.modal.is-open {
  visibility: visible;
  opacity: 1;
}
.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 3, 2, .84);
  backdrop-filter: blur(8px);
}
.modal__box {
  position: relative;
  width: min(520px, 100%);
  max-height: 88vh;
  overflow: auto;
  padding: 44px 40px 36px;
  background: linear-gradient(180deg, #1c1712, #0c0a08);
  border: 1px solid rgba(217, 169, 94, .34);
  box-shadow: 0 50px 130px -20px #000, inset 0 1px 0 rgba(255, 255, 255, .05);
  transform: translateY(16px) scale(.985);
  transition: transform .32s cubic-bezier(.2, .7, .3, 1);
}
.modal.is-open .modal__box { transform: none; }
.modal__box::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(217, 169, 94, .1);
  pointer-events: none;
}
.modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  color: #c4ac85;
  background: none;
  border: 1px solid rgba(217, 169, 94, .18);
  cursor: pointer;
  transition: .22s;
}
.modal__close:hover {
  color: #2a1a05;
  background: rgba(226, 182, 108, .9);
  border-color: transparent;
}
.modal__close svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
}
.modal__title {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .14em;
  text-align: center;
  color: #f2ddb6;
}
.modal__sub {
  margin: 0 0 26px;
  font-size: 12.5px;
  letter-spacing: .08em;
  text-align: center;
  color: #8f8474;
}
.modal__qr {
  display: block;
  width: 240px;
  max-width: 78%;
  margin: 0 auto 20px;
  padding: 10px;
  background: #0a0908;
  border: 1px solid rgba(217, 169, 94, .26);
}
.modal__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 22px;
}
.modal__link {
  display: block;
  padding: 14px;
  font-size: 14px;
  letter-spacing: .12em;
  text-align: center;
  color: #e7d2ab;
  text-decoration: none;
  border: 1px solid rgba(217, 169, 94, .3);
  transition: .25s;
}
.modal__link:hover {
  background: rgba(217, 169, 94, .12);
  border-color: rgba(217, 169, 94, .6);
}
.modal__tips {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  line-height: 2;
  text-align: center;
  color: #7b7061;
}
.modal__downloads { display: flex; flex-direction: column; gap: 10px; }
.modal__dl {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  color: #e8d4ad;
  text-decoration: none;
  border: 1px solid rgba(217, 169, 94, .16);
  background: rgba(217, 169, 94, .04);
  transition: .25s;
}
.modal__dl:hover {
  border-color: rgba(217, 169, 94, .5);
  background: rgba(217, 169, 94, .1);
}
.modal__dl strong {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .1em;
}
.modal__dl span {
  font-size: 12px;
  color: #8c8171;
}
.modal__dl em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: .1em;
  color: #d8b578;
}
.modal__dl--muted {
  opacity: .55;
  cursor: not-allowed;
}
.modal__dl--muted em { color: #8a7f6f; }
button.modal__link {
  width: 100%;
  font-family: inherit;
  background: none;
  cursor: pointer;
}

/* ============================================================
   响应式
   ============================================================ */
@media (min-width: 1760px) {
  .section { padding: 130px 0; }
  .hero__inner { width: min(1180px, 100%); }
  .hero__title { font-size: 168px; }
  .hero__stats { width: min(860px, 100%); }
}

@media (max-height: 820px) and (min-width: 821px) {
  .hero { padding-top: 118px; padding-bottom: 92px; }
  .hero__title { font-size: clamp(58px, 7.6vw, 120px); }
  .hero__sub { margin-top: 18px; }
  .hero__actions { margin-top: 30px; }
  .hero__stats { margin-top: 40px; }
  .hero__stats li { padding: 16px 12px; }
  .hero__scroll { display: none; }
}

@media (max-width: 1280px) {
  :root { --wrap: calc(100% - 64px); }
  .nav__menu a { padding: 10px 11px; font-size: 13.5px; }
  .feature { padding: 32px 28px 30px; }
}

@media (max-width: 1080px) {
  .nav__menu { display: none; }
  .nav__actions { margin-left: auto; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); max-width: 460px; }
  .hero__stats li:nth-child(3)::before { display: none; }
  .video-layout { grid-template-columns: 1fr; }
  .video-frame { order: -1; }
  .feature { flex: 0 0 calc((100% - 18px) / 2); }
  .service-grid { grid-template-columns: 1fr; }
  .download-grid { grid-template-columns: 1fr; }
  .download-card { padding: 32px 26px 28px; }
  .panel__seal { display: none; }
}

@media (max-width: 820px) {
  :root { --wrap: calc(100% - 40px); }
  .section { padding: 76px 0; }
  .hero { padding-top: 120px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { width: 100%; }
  .carousel__viewport { aspect-ratio: 4 / 3; }
  .carousel__thumb { width: 92px; height: 56px; }
  .carousel__count { display: none; }
  .feature { flex: 0 0 100%; }
  .download-meta { grid-template-columns: repeat(2, 1fr); }
  .download-meta__item:nth-child(3)::before { display: none; }
  .float-bar { display: none; }
  .nav__actions .nav-btn:not(.nav-btn--gold) { display: none; }
  .notice__inner { height: auto; padding: 12px 18px; flex-direction: column; align-items: stretch; gap: 8px; }
  .notice__label { border-right: 0; padding-right: 0; }
  .notice { margin-top: -30px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  html { scroll-behavior: auto; }
}