/* =========================================================
   SXTVIP 游戏服务器管理器 — 官网样式
   品牌色：#2D7AFF → #0A3A8E
   ========================================================= */

:root {
  /* 背景与表面 */
  --bg:            #05070D;
  --bg-alt:        #080B14;
  --surface:       rgba(255, 255, 255, .035);
  --surface-2:     rgba(255, 255, 255, .06);
  --surface-3:     rgba(255, 255, 255, .09);
  --border:        rgba(255, 255, 255, .09);
  --border-strong: rgba(255, 255, 255, .18);

  /* 文字 */
  --text:   #EEF3FF;
  --text-2: #9BA7BF;
  --text-3: #6B7893;

  /* 品牌 */
  --brand:      #2D7AFF;
  --brand-deep: #0A3A8E;
  --brand-soft: rgba(45, 122, 255, .14);
  --accent:     #22D3EE;
  --grad:       linear-gradient(135deg, #2D7AFF 0%, #0A3A8E 100%);
  --grad-text:  linear-gradient(120deg, #6BA5FF 0%, #2D7AFF 45%, #22D3EE 100%);

  /* 尺寸 */
  --maxw:  1200px;
  --radius: 18px;
  --radius-sm: 12px;
  --nav-h: 68px;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, h5 { margin: 0; line-height: 1.25; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: .92em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: .1em .4em;
  border-radius: 6px;
  color: #8FC3FF;
}

::selection { background: rgba(45, 122, 255, .35); color: #fff; }

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, .12);
  border-radius: 10px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, .22); }

/* ---------- 布局 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.container--narrow { max-width: 820px; }

.grad {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .2s var(--ease), box-shadow .25s var(--ease),
              background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}
.btn--sm { padding: 8px 16px; font-size: 14px; }
.btn--lg { padding: 15px 30px; font-size: 16px; }

.btn--primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 6px 20px -6px rgba(45, 122, 255, .65);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -8px rgba(45, 122, 255, .8);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
  backdrop-filter: blur(10px);
}
.btn--ghost:hover {
  background: var(--surface-2);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

/* =========================================================
   导航
   ========================================================= */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(5, 7, 13, .78);
  backdrop-filter: blur(18px) saturate(150%);
  border-bottom-color: var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand__mark { width: 36px; height: 36px; border-radius: 9px; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__text strong { font-size: 16px; letter-spacing: .06em; }
.brand__text em {
  font-style: normal;
  font-size: 11.5px;
  color: var(--text-3);
  letter-spacing: .04em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav__links a {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14.5px;
  color: var(--text-2);
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav__links a:hover { color: var(--text); background: var(--surface-2); }

.nav__actions { display: flex; align-items: center; gap: 10px; }

.nav__toggle {
  display: none;
  width: 40px; height: 40px;
  margin-left: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  padding: 11px 9px;
  flex-direction: column;
  justify-content: space-between;
}
.nav__toggle span {
  display: block; height: 2px; border-radius: 2px;
  background: var(--text);
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 72px) 0 88px;
  overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; pointer-events: none; }

.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 65% at 50% 0%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 65% at 50% 0%, #000 20%, transparent 75%);
}
.hero__glow { position: absolute; border-radius: 50%; filter: blur(110px); opacity: .5; }
.hero__glow--a {
  width: 620px; height: 620px; top: -220px; left: -140px;
  background: radial-gradient(circle, rgba(45,122,255,.55), transparent 68%);
}
.hero__glow--b {
  width: 520px; height: 520px; top: 40px; right: -160px;
  background: radial-gradient(circle, rgba(34,211,238,.30), transparent 68%);
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
  gap: 56px;
  align-items: center;
}

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px 6px 11px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  font-size: 13px; color: var(--text-2);
  backdrop-filter: blur(10px);
}
.pill__dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, .2);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

.hero__title {
  margin: 22px 0 0;
  font-size: clamp(2.3rem, 5.2vw, 3.7rem);
  letter-spacing: -.025em;
  line-height: 1.12;
}
.hero__lead {
  margin-top: 20px;
  font-size: 16.5px;
  color: var(--text-2);
  max-width: 34em;
}
.hero__lead strong { color: var(--text); font-weight: 600; }

.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }

.hero__meta {
  display: flex; flex-wrap: wrap; gap: 10px 22px;
  margin-top: 30px;
  font-size: 13.5px; color: var(--text-3);
}
.hero__meta li { display: flex; align-items: center; gap: 8px; }
.hero__meta li::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--brand); flex-shrink: 0;
}

/* 截图外框 */
.hero__visual { position: relative; }
.shot {
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: #0B1020;
  overflow: hidden;
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, .9),
              0 0 0 1px rgba(255, 255, 255, .04) inset;
}
.shot__bar {
  display: flex; align-items: center; gap: 14px;
  padding: 11px 16px;
  background: rgba(255, 255, 255, .045);
  border-bottom: 1px solid var(--border);
}
.shot__dots { display: flex; gap: 7px; }
.shot__dots i {
  width: 11px; height: 11px; border-radius: 50%; display: block;
}
.shot__dots i:nth-child(1) { background: #FF5F57; }
.shot__dots i:nth-child(2) { background: #FEBC2E; }
.shot__dots i:nth-child(3) { background: #28C840; }
.shot__url {
  flex: 1;
  text-align: center;
  font-size: 12px;
  color: var(--text-3);
  background: rgba(0, 0, 0, .3);
  border-radius: 999px;
  padding: 4px 12px;
  max-width: 320px;
  margin: 0 auto;
}
.shot__body { position: relative; }
.shot__body img { width: 100%; height: auto; }

.shot--hero { transform: perspective(1600px) rotateY(-3deg) rotateX(1.5deg); }

.hero__float {
  position: absolute;
  padding: 12px 18px;
  background: rgba(10, 15, 30, .82);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 40px -14px rgba(0, 0, 0, .85);
  display: flex; flex-direction: column; gap: 2px;
  animation: float 6s ease-in-out infinite;
}
.hero__float--cpu { top: 12%; right: -22px; }
.hero__float--players { bottom: 14%; left: -30px; animation-delay: -3s; }
.hero__float-label { font-size: 11.5px; color: var(--text-3); letter-spacing: .05em; }
.hero__float-val { font-size: 19px; font-weight: 700; color: var(--text); }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* =========================================================
   数据统计
   ========================================================= */
.stats { padding: 8px 0 56px; position: relative; z-index: 1; }
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat {
  background: var(--bg);
  padding: 30px 20px;
  text-align: center;
  transition: background .3s var(--ease);
}
.stat:hover { background: var(--bg-alt); }
.stat__num { font-size: 2.5rem; font-weight: 800; line-height: 1.1; }
.stat__unit { font-size: 1.1rem; margin-left: 2px; }
.stat__label { margin-top: 6px; font-size: 13.5px; color: var(--text-3); }

/* =========================================================
   区块通用
   ========================================================= */
.section { padding: 92px 0; }
.section--alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section__head { max-width: 660px; margin: 0 auto 52px; text-align: center; }
.eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 14px;
}
.section__title {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  letter-spacing: -.02em;
}
.section__sub { margin-top: 16px; color: var(--text-2); font-size: 16px; }

/* =========================================================
   功能卡片
   ========================================================= */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 20px;
}
.card {
  position: relative;
  padding: 30px 26px 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}
.card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 0%), rgba(45,122,255,.10), transparent 40%);
  opacity: 0; transition: opacity .35s var(--ease);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.card:hover::before { opacity: 1; }

.card__icon {
  width: 48px; height: 48px;
  border-radius: 13px;
  display: grid; place-items: center;
  margin-bottom: 18px;
}
.card__icon--blue   { background: rgba(45,122,255,.16);  color: #6BA5FF; }
.card__icon--cyan   { background: rgba(34,211,238,.14);  color: #22D3EE; }
.card__icon--violet { background: rgba(139,92,246,.16);  color: #A78BFA; }
.card__icon--green  { background: rgba(34,197,94,.14);   color: #4ADE80; }
.card__icon--amber  { background: rgba(245,158,11,.14);  color: #FBBF24; }
.card__icon--rose   { background: rgba(244,63,94,.14);   color: #FB7185; }

.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { color: var(--text-2); font-size: 14.8px; }
.card__tag {
  display: inline-block;
  margin-top: 16px;
  padding: 4px 11px;
  font-size: 12px;
  color: #8FC3FF;
  background: var(--brand-soft);
  border: 1px solid rgba(45,122,255,.25);
  border-radius: 999px;
}

/* =========================================================
   界面预览
   ========================================================= */
.preview { max-width: 1020px; margin: 0 auto; }
.preview__tabs {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;
  margin-bottom: 26px;
}
.preview__tab {
  padding: 9px 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  font-size: 14px; font-weight: 500;
  cursor: pointer;
  transition: all .25s var(--ease);
}
.preview__tab:hover { color: var(--text); border-color: var(--border-strong); }
.preview__tab.is-active {
  background: var(--grad);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 6px 18px -6px rgba(45,122,255,.7);
}
.preview__cap {
  margin-top: 18px;
  text-align: center;
  font-size: 14px;
  color: var(--text-3);
  min-height: 1.7em;
}

/* =========================================================
   游戏市场
   ========================================================= */
.games {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}
.game {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.game:hover {
  transform: translateY(-5px);
  border-color: rgba(45,122,255,.45);
  box-shadow: 0 22px 44px -22px rgba(45,122,255,.55);
}
.game__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #0B1020;
}
.game__media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s var(--ease);
}
.game:hover .game__media img { transform: scale(1.07); }
.game__media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(5,7,13,.92) 4%, rgba(5,7,13,.25) 55%, transparent 100%);
}
.game__body { padding: 18px 20px 20px; }
.game__name { font-size: 16.5px; margin-bottom: 6px; }
.game__ico { margin-right: 7px; }
.game__desc {
  font-size: 13.5px; color: var(--text-3);
  min-height: 2.6em;
}
.game__meta { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 13px; }
.chip {
  font-size: 11.5px;
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--brand-soft);
  border: 1px solid rgba(45,122,255,.24);
  color: #8FC3FF;
  font-variant-numeric: tabular-nums;
}
.chip--ghost {
  background: var(--surface-2);
  border-color: var(--border);
  color: var(--text-3);
}

.games__note {
  margin-top: 30px;
  text-align: center;
  font-size: 14.5px;
  color: var(--text-3);
}

/* =========================================================
   下载
   ========================================================= */
.download {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 20px;
  align-items: stretch;
}
.download__main {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  padding: 34px;
  border: 1px solid rgba(45,122,255,.35);
  border-radius: var(--radius);
  background:
    radial-gradient(700px circle at 15% 0%, rgba(45,122,255,.20), transparent 55%),
    var(--surface);
}
.download__icon {
  width: 72px; height: 72px; flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: 17px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border);
}
.download__icon img { width: 56px; height: 56px; }
.download__info { flex: 1; min-width: 200px; }
.download__info h3 { font-size: 20px; }
.download__facts {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
  margin-top: 9px;
  font-size: 13.5px; color: var(--text-3);
}
.download__facts i { width: 3px; height: 3px; border-radius: 50%; background: var(--text-3); }
.download__btn { flex-shrink: 0; }

.download__side {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.download__side h4 { font-size: 15px; margin-bottom: 16px; }
.download__side ul { display: flex; flex-direction: column; gap: 11px; }
.download__side li {
  font-size: 14px; color: var(--text-2);
  padding-left: 16px; position: relative;
}
.download__side li::before {
  content: ""; position: absolute; left: 0; top: 10px;
  width: 6px; height: 6px; border-radius: 2px;
  background: var(--brand);
}
.download__side li strong { color: var(--text); margin-right: 8px; font-weight: 600; }
.download__tip {
  margin-top: 18px; padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 13.5px; color: var(--text-3);
}
.download__tip a { color: #8FC3FF; border-bottom: 1px dashed rgba(143,195,255,.4); }
.download__tip a:hover { color: var(--accent); }

/* =========================================================
   FAQ
   ========================================================= */
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq__item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  overflow: hidden;
  transition: border-color .25s var(--ease), background .25s var(--ease);
}
.faq__item[open] { border-color: rgba(45,122,255,.35); background: var(--surface-2); }
.faq__item summary {
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 600;
  font-size: 15.5px;
  list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  transition: color .2s var(--ease);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: #8FC3FF; }
.faq__item summary::after {
  content: "";
  width: 10px; height: 10px; flex-shrink: 0;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg);
  transition: transform .3s var(--ease);
  margin-top: -4px;
}
.faq__item[open] summary::after { transform: rotate(-135deg); margin-top: 2px; }
.faq__item p {
  padding: 0 22px 20px;
  color: var(--text-2);
  font-size: 14.8px;
}

/* =========================================================
   页脚
   ========================================================= */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  padding: 60px 0 30px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(4, 1fr);
  gap: 32px;
  padding-bottom: 40px;
}
.footer__slogan {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-3);
  max-width: 32em;
}
.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__col h5 {
  font-size: 13px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 4px;
}
.footer__col a { font-size: 14.5px; color: var(--text-3); transition: color .2s var(--ease); }
.footer__col a:hover { color: #8FC3FF; }
.footer__static { font-size: 14.5px; color: var(--text-3); }

.footer__bar {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex; flex-wrap: wrap; gap: 10px 24px;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-3);
}

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

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .hero__copy { text-align: center; max-width: 640px; margin: 0 auto; }
  .hero__lead { margin-inline: auto; }
  .hero__cta, .hero__meta { justify-content: center; }
  .hero__meta li { text-align: left; }
  .shot--hero { transform: none; }
  .hero__float--cpu { right: 8px; }
  .hero__float--players { left: 8px; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 880px) {
  .nav__links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 14px 20px 20px;
    background: rgba(5, 7, 13, .97);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-14px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
  }
  .nav__links.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav__links a { padding: 12px 14px; font-size: 15px; }
  .nav__toggle { display: flex; }
  .nav__actions .btn--ghost { display: none; }

  .download { grid-template-columns: 1fr; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  .container { padding: 0 18px; }
  .section { padding: 64px 0; }
  .hero { padding: calc(var(--nav-h) + 44px) 0 60px; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .stat { padding: 22px 12px; }
  .stat__num { font-size: 2rem; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { width: 100%; }
  .hero__float { display: none; }
  .features { grid-template-columns: 1fr; }
  .games { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
  .game__desc { display: none; }
  .game__body { padding: 14px 14px 16px; }
  .game__name { font-size: 15px; }
  .download__main { flex-direction: column; align-items: flex-start; padding: 26px; }
  .download__btn { width: 100%; }
  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .footer__bar { flex-direction: column; }
  .preview__tab { padding: 8px 14px; font-size: 13px; }
}

/* =========================================================
   无障碍：减弱动画
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}