/* =========================================================
   Pavise · pavise.com.cn
   深色 HUD + 翠绿 / 金色闪电 主题
   ========================================================= */

/* ---------- 设计变量 ---------- */
:root {
  color-scheme: dark;

  --rgb-emerald: 0, 224, 138;
  --rgb-gold: 232, 192, 92;

  --bg: #05090b;
  --bg-soft: #070f12;
  --panel: #0a1418;
  --panel-2: #0e1c21;
  --header-bg: rgba(5, 9, 11, .78);
  --header-bg-scrolled: rgba(5, 9, 11, .94);

  --grid-line: rgba(var(--rgb-emerald), .05);
  --line: rgba(var(--rgb-emerald), .14);
  --line-2: rgba(var(--rgb-emerald), .3);

  --text: #e6f4ef;
  --muted: #8ca8a1;
  --dim: #617873;

  --emerald: #00e08a;
  --emerald-2: #6bffc4;
  --gold: #e8c05c;
  --gold-2: #f8e3a6;

  --btn-grad: linear-gradient(115deg, #00d183 0%, #52ffba 100%);
  --on-primary: #03140d;

  --radius: 14px;
  --container: 1200px;
  --header-h: 72px;
  --section-py: clamp(56px, 8vw, 104px);

  --font: "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

html[data-theme="light"] {
  color-scheme: light;

  --rgb-emerald: 0, 135, 90;
  --rgb-gold: 168, 120, 22;

  --bg: #f3f8f5;
  --bg-soft: #ecf4f0;
  --panel: #ffffff;
  --panel-2: #f8fcfa;
  --header-bg: rgba(243, 248, 245, .82);
  --header-bg-scrolled: rgba(243, 248, 245, .96);

  --grid-line: rgba(0, 90, 60, .06);
  --line: rgba(0, 90, 60, .14);
  --line-2: rgba(0, 90, 60, .3);

  --text: #07130f;
  --muted: #4f665f;
  --dim: #7a8d86;

  --emerald: #00875a;
  --emerald-2: #00a870;
  --gold: #a1710f;
  --gold-2: #c08a1c;

  --btn-grad: linear-gradient(115deg, #00b878 0%, #2fe3a0 100%);
  --on-primary: #03140d;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 18px);
  scrollbar-gutter: stable both-edges;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 68px 68px;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button { font: inherit; color: inherit; }
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }

::selection { background: rgba(var(--rgb-emerald), .28); color: var(--text); }

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

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  padding: 10px 16px; background: var(--panel); border: 1px solid var(--line-2);
  color: var(--text); text-decoration: none; transition: top .2s ease;
}
.skip-link:focus { top: 12px; }

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.ico { width: 1.05em; height: 1.05em; flex: none; }

.kicker {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

/* ---------- 按钮 ---------- */
.btn {
  --h: 46px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: var(--h);
  padding: 0 24px;
  border: 0;
  font-size: .94rem;
  font-weight: 700;
  letter-spacing: .02em;
  text-decoration: none;
  cursor: pointer;
  -webkit-clip-path: polygon(12px 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
  clip-path: polygon(12px 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
  transition: transform .22s ease, filter .22s ease, background .22s ease, color .22s ease;
}
.btn .ico { width: 1.1em; height: 1.1em; }

.btn-primary {
  background: var(--btn-grad);
  color: var(--on-primary);
  filter: drop-shadow(0 12px 26px rgba(var(--rgb-emerald), .28));
}
.btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.06) drop-shadow(0 16px 34px rgba(var(--rgb-emerald), .42));
}
.btn-primary:active { transform: translateY(0); }

.btn-lg { --h: 54px; padding: 0 32px; font-size: 1rem; }

.btn-ghost {
  background: transparent;
  color: var(--text);
  -webkit-clip-path: none;
  clip-path: none;
  padding: 0 4px;
  gap: 6px;
}
.btn-ghost::after {
  content: "";
  position: absolute;
  left: 4px; right: 4px; bottom: 10px;
  height: 1px;
  background: var(--line-2);
  transition: background .22s ease, left .22s ease, right .22s ease;
}
.btn-ghost .ico { transition: transform .22s ease; }
.btn-ghost:hover { color: var(--emerald); }
.btn-ghost:hover::after { background: var(--emerald); left: 0; right: 0; }
.btn-ghost:hover .ico { transform: translateX(3px); }

/* ---------- 顶栏 ---------- */
.site-header {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 60;
  height: var(--header-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: var(--header-bg);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  transition: background .25s ease, box-shadow .25s ease;
}
.site-header::after {
  content: "";
  position: absolute;
  left: 50%; bottom: -1px;
  width: min(100%, var(--container));
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--line-2) 20%, var(--line-2) 80%, transparent);
}
.site-header.is-scrolled {
  background: var(--header-bg-scrolled);
  box-shadow: 0 20px 40px -32px #000;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  width: min(100% - 40px, var(--container));
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  flex: none;
}
.brand-mark {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: 10px;
  border: 1px solid rgba(var(--rgb-gold), .45);
  background: linear-gradient(160deg, #141b17 0%, #05090a 100%);
  box-shadow: 0 0 22px -6px rgba(var(--rgb-gold), .45), inset 0 1px 0 rgba(255, 255, 255, .08);
  color: var(--gold);
}
.brand-mark svg { width: 21px; height: 21px; }
.brand-text {
  display: flex;
  flex-direction: column;
  font-size: 1.06rem;
  font-weight: 800;
  letter-spacing: .18em;
  line-height: 1.1;
  color: var(--text);
}
.brand-text small {
  font-family: var(--mono);
  font-size: .5rem;
  font-weight: 500;
  letter-spacing: .32em;
  color: var(--dim);
  margin-top: 4px;
}

/* 导航 */
.site-nav { margin-left: auto; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-list a {
  position: relative;
  display: block;
  padding: 8px 14px;
  font-size: .92rem;
  color: var(--muted);
  text-decoration: none;
  transition: color .2s ease;
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 1px;
  background: var(--emerald);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.nav-list a:hover { color: var(--text); }
.nav-list a:hover::after { transform: scaleX(1); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.theme-toggle {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.theme-toggle:hover { color: var(--gold); border-color: rgba(var(--rgb-gold), .45); background: rgba(var(--rgb-gold), .06); }
.theme-toggle .ico { width: 18px; height: 18px; }
.ico-sun { display: none; }
html[data-theme="light"] .ico-sun { display: block; }
html[data-theme="light"] .ico-moon { display: none; }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  padding: 11px 9px;
  flex-direction: column;
  justify-content: space-between;
}
.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--text);
  transition: transform .25s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav-backdrop {
  position: fixed;
  top: var(--header-h);
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 50;
  background: rgba(2, 6, 5, .6);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(44px, 6.4vw, 82px) 0 clamp(46px, 5vw, 72px);
  overflow: hidden;
  isolation: isolate;
}
.hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: -1;
  pointer-events: none;
}
.hero-beam {
  position: absolute;
  top: -20%;
  right: -10%;
  left: -10%;
  height: 120%;
  background: linear-gradient(118deg, transparent 42%, rgba(var(--rgb-emerald), .07) 48%, rgba(var(--rgb-gold), .05) 55%, transparent 62%);
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(10px);
}
.hero-glow-a {
  width: 620px; height: 620px;
  right: -120px; top: -220px;
  background: radial-gradient(circle, rgba(var(--rgb-emerald), .16), transparent 68%);
}
.hero-glow-b {
  width: 520px; height: 520px;
  left: -180px; bottom: -260px;
  background: radial-gradient(circle, rgba(var(--rgb-gold), .08), transparent 70%);
}

.hero-copy,
.hero-media { min-width: 0; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: clamp(28px, 4.4vw, 56px);
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  background: rgba(var(--rgb-emerald), .05);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--muted);
  margin-bottom: 24px;
}
.pulse-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 0 0 rgba(var(--rgb-emerald), .6);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(var(--rgb-emerald), .55); }
  70% { box-shadow: 0 0 0 8px rgba(var(--rgb-emerald), 0); }
  100% { box-shadow: 0 0 0 0 rgba(var(--rgb-emerald), 0); }
}

.hero-title {
  font-size: clamp(2.5rem, 6.2vw, 4.15rem);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -.035em;
  margin-bottom: 22px;
}
.text-grad {
  background: linear-gradient(100deg, var(--gold-2) 0%, var(--gold) 45%, #b8892b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 6px 28px rgba(var(--rgb-gold), .3));
}

.hero-lead {
  max-width: 36rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.15vw, 1.08rem);
  line-height: 1.85;
}
.hero-lead strong { color: var(--text); font-weight: 600; }

.hero-actions {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  margin: 32px 0 26px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-size: .85rem;
  color: var(--dim);
}
.hero-points li { display: inline-flex; align-items: center; gap: 7px; }
.hero-points .ico { width: 14px; height: 14px; color: var(--emerald); }

/* Hero 媒体 */
.hero-media { position: relative; isolation: isolate; }
.hero-media::before {
  content: "";
  position: absolute;
  top: -8%;
  right: -5%;
  bottom: -8%;
  left: -5%;
  z-index: -1;
  background: radial-gradient(58% 52% at 54% 46%, rgba(var(--rgb-emerald), .16), transparent 72%);
  filter: blur(12px);
  pointer-events: none;
}

.media-rings {
  position: absolute;
  top: -14%;
  right: -10%;
  bottom: -14%;
  left: -10%;
  z-index: -1;
  pointer-events: none;
}
.media-rings span {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  border-radius: 50%;
  border: 1px solid rgba(var(--rgb-emerald), .16);
}
.media-rings span:nth-child(1) { top: 4%; right: 4%; bottom: 4%; left: 4%; border-style: dashed; animation: spin 90s linear infinite; }
.media-rings span:nth-child(2) { top: 14%; right: 14%; bottom: 14%; left: 14%; border-color: rgba(var(--rgb-gold), .2); animation: spin 120s linear infinite reverse; }
.media-rings span:nth-child(3) { top: 24%; right: 24%; bottom: 24%; left: 24%; border-color: rgba(var(--rgb-emerald), .1); }
@keyframes spin { to { transform: rotate(360deg); } }

.screen {
  position: relative;
  padding: 9px;
  border-radius: 16px;
  border: 1px solid var(--line-2);
  background: linear-gradient(165deg, #0d1a1e 0%, #04090b 72%);
  box-shadow:
    0 60px 100px -50px #000,
    0 0 0 1px rgba(0, 0, 0, .55),
    0 0 100px -26px rgba(var(--rgb-emerald), .5);
}

.screen-bracket {
  position: absolute;
  width: 16px; height: 16px;
  border: 1px solid var(--emerald);
  opacity: .75;
  pointer-events: none;
}
.screen-bracket.tl { top: -7px; left: -7px; border-right: 0; border-bottom: 0; }
.screen-bracket.tr { top: -7px; right: -7px; border-left: 0; border-bottom: 0; }
.screen-bracket.bl { bottom: -7px; left: -7px; border-right: 0; border-top: 0; }
.screen-bracket.br { bottom: -7px; right: -7px; border-left: 0; border-top: 0; }

.carousel-viewport {
  position: relative;
  aspect-ratio: 1220 / 758;
  border-radius: 9px;
  overflow: hidden;
  background: #020606;
}
.slide {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  opacity: 0;
  transform: scale(1.02);
  transition: opacity .65s ease, transform .8s ease;
  pointer-events: none;
}
.slide.is-active { opacity: 1; transform: none; pointer-events: auto; }
.slide img { width: 100%; height: 100%; object-fit: cover; }

.screen-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .08em;
  color: #e6f4ef;
  background: rgba(6, 14, 12, .88);
  border: 1px solid rgba(0, 224, 138, .32);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  box-shadow: 0 16px 30px -18px #000;
}
.screen-chip i {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 8px var(--emerald);
}
.chip-left { left: -18px; top: 14%; }
.chip-right { right: -14px; bottom: 12%; }

.shot-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
  padding: 0 4px;
}
.carousel-dots { display: flex; align-items: center; gap: 2px; }
.carousel-dot {
  position: relative;
  width: 30px;
  height: 24px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  transition: width .25s ease;
}
.carousel-dot::before {
  content: "";
  position: absolute;
  left: 2px;
  right: 2px;
  top: 50%;
  height: 3px;
  transform: translateY(-50%);
  background: rgba(var(--rgb-emerald), .22);
  transition: background .25s ease;
}
.carousel-dot:hover::before { background: rgba(var(--rgb-emerald), .55); }
.carousel-dot.is-active { width: 46px; }
.carousel-dot.is-active::before { background: var(--emerald); box-shadow: 0 0 10px rgba(var(--rgb-emerald), .55); }

.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 34px;
  height: 54px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(var(--rgb-emerald), .35);
  background: rgba(4, 10, 8, .62);
  color: #e6f4ef;
  cursor: pointer;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}
.carousel-nav .ico { width: 18px; height: 18px; }
.carousel-nav:hover {
  background: rgba(var(--rgb-emerald), .18);
  border-color: var(--emerald);
  color: var(--emerald);
}
.carousel-nav:active { transform: translateY(-50%) scale(.96); }
.carousel-prev { left: 16px; }
.carousel-next { right: 16px; }
.carousel-viewport {
  cursor: pointer;
  touch-action: pan-y;
  -webkit-user-select: none;
  user-select: none;
}

.shot-label {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--muted);
}
.shot-count { color: var(--dim); }
.shot-count b { color: var(--gold); font-weight: 600; }

/* ---------- 数据条 ---------- */
.stats {
  border-block: 1px solid var(--line);
  background: rgba(var(--rgb-emerald), .025);
}
.stats-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 22px 24px;
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat:first-child { border-left: 0; padding-left: 0; }
.stat-num {
  font-family: var(--mono);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: .02em;
}
.stat-label { font-size: .78rem; color: var(--dim); letter-spacing: .06em; }

/* ---------- 通用区块 ---------- */
.section { padding-block: var(--section-py); position: relative; }

.section-head {
  position: relative;
  max-width: 680px;
  padding-left: 20px;
  margin-bottom: clamp(30px, 3.6vw, 46px);
}
.section-head::before {
  content: "";
  position: absolute;
  left: 0; top: 8px; bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(var(--rgb-gold), 0));
}
.section-head h2 {
  font-size: clamp(1.65rem, 3.4vw, 2.35rem);
  line-height: 1.2;
  letter-spacing: -.025em;
  font-weight: 800;
  margin-bottom: 10px;
}
.section-sub { color: var(--muted); font-size: clamp(.94rem, 1.05vw, 1.02rem); }

/* ---------- 功能卡片 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 24px 24px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .035), rgba(255, 255, 255, 0) 60%),
    var(--panel);
  transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
}
html[data-theme="light"] .feature-card {
  background:
    linear-gradient(180deg, rgba(0, 90, 60, .035), rgba(255, 255, 255, 0) 60%),
    var(--panel);
}
.feature-card::after {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 42px; height: 2px;
  background: linear-gradient(90deg, var(--emerald), transparent);
  opacity: .55;
  transition: width .35s ease, opacity .35s ease;
}
.feature-card:hover {
  border-color: var(--line-2);
  transform: translateY(-4px);
  box-shadow: 0 30px 60px -40px rgba(0, 0, 0, .9), 0 0 40px -28px rgba(var(--rgb-emerald), .8);
}
.feature-card:hover::after { width: 100%; opacity: 1; }

.feature-card.is-featured {
  border-color: rgba(var(--rgb-gold), .4);
  background:
    linear-gradient(160deg, rgba(var(--rgb-gold), .09), rgba(var(--rgb-emerald), .04) 55%, transparent),
    var(--panel);
}
.feature-card.is-featured::after { background: linear-gradient(90deg, var(--gold), transparent); opacity: .9; }

.feature-index {
  position: absolute;
  top: 16px; right: 18px;
  font-family: var(--mono);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: rgba(var(--rgb-emerald), .1);
  pointer-events: none;
}
.feature-card.is-featured .feature-index { color: rgba(var(--rgb-gold), .16); }

.feature-tag {
  position: absolute;
  top: 22px; right: 76px;
  padding: 2px 8px;
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .18em;
  color: var(--gold);
  border: 1px solid rgba(var(--rgb-gold), .45);
  background: rgba(var(--rgb-gold), .07);
}

.feature-icon {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  color: var(--emerald);
  background: rgba(var(--rgb-emerald), .05);
}
.feature-icon svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.feature-card.is-featured .feature-icon { color: var(--gold); border-color: rgba(var(--rgb-gold), .4); background: rgba(var(--rgb-gold), .06); }

.feature-card h3 {
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: -.01em;
  margin-bottom: 8px;
}
.feature-card > p {
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.75;
}
.feature-list {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 7px;
}
.feature-list li {
  position: relative;
  padding-left: 14px;
  font-size: .82rem;
  color: var(--muted);
  line-height: 1.6;
}
.feature-list li::before {
  content: "";
  position: absolute;
  left: 0; top: .62em;
  width: 5px; height: 5px;
  background: var(--emerald);
  opacity: .7;
  transform: rotate(45deg);
}

/* ---------- 三步开始 ---------- */
.steps { border-top: 1px solid var(--line); }
.step-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.step {
  position: relative;
  padding: 24px 22px 22px;
  border-top: 1px solid var(--line-2);
  background: linear-gradient(180deg, rgba(var(--rgb-emerald), .045), transparent 70%);
}
.step::before {
  content: "";
  position: absolute;
  left: 0; top: -1px;
  width: 64px; height: 2px;
  background: var(--emerald);
}
.step-num {
  display: block;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .24em;
  color: var(--gold);
  margin-bottom: 14px;
}
.step h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: .89rem; line-height: 1.75; }

/* ---------- 适配游戏 ---------- */
.games { border-top: 1px solid var(--line); }
.games-inner {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}
.games-copy h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -.025em;
  font-weight: 800;
  margin-bottom: 10px;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}
.chips li {
  padding: 8px 15px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-size: .84rem;
  color: var(--muted);
  transition: color .2s ease, border-color .2s ease, transform .2s ease, background .2s ease;
}
.chips li:hover {
  color: var(--text);
  border-color: rgba(var(--rgb-emerald), .45);
  background: rgba(var(--rgb-emerald), .07);
  transform: translateY(-2px);
}

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq-list {
  border-top: 1px solid var(--line-2);
}
.faq-item {
  border-bottom: 1px solid var(--line);
  transition: background .25s ease;
}
.faq-item summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 19px 6px 19px 0;
  cursor: pointer;
  list-style: none;
  transition: color .2s ease, padding-left .25s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-q {
  font-size: clamp(.96rem, 1.15vw, 1.04rem);
  font-weight: 600;
  letter-spacing: -.005em;
}
.faq-item summary:hover { color: var(--emerald); }
.faq-item[open] summary { color: var(--text); }

.faq-icon {
  position: relative;
  width: 16px; height: 16px;
  flex: none;
  border: 1px solid var(--line-2);
  transition: border-color .25s ease, transform .25s ease, background .25s ease;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  background: var(--gold);
  transform: translate(-50%, -50%);
  transition: opacity .2s ease, background .2s ease;
}
.faq-icon::before { width: 8px; height: 1px; }
.faq-icon::after { width: 1px; height: 8px; }
.faq-item[open] .faq-icon { border-color: rgba(var(--rgb-emerald), .5); }
.faq-item[open] .faq-icon::after { opacity: 0; }
.faq-item[open] .faq-icon::before { background: var(--emerald); }

.faq-a {
  padding: 0 60px 22px 0;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.85;
  max-width: 78ch;
  animation: faqIn .28s ease-out;
}
@keyframes faqIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* ---------- CTA ---------- */
.cta { padding: 12px 0 clamp(56px, 7vw, 96px); }
.cta-panel {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: clamp(28px, 4vw, 44px) clamp(24px, 4vw, 46px);
  border: 1px solid rgba(var(--rgb-gold), .38);
  background:
    linear-gradient(120deg, rgba(var(--rgb-emerald), .1), transparent 46%),
    var(--panel);
  overflow: hidden;
  box-shadow: 0 40px 80px -60px rgba(0, 0, 0, .9), inset 0 0 60px -40px rgba(var(--rgb-emerald), .6);
}
.cta-panel::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--emerald), var(--gold) 55%, transparent);
}
.cta-hatch {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: auto;
  width: 42%;
  background-image: repeating-linear-gradient(135deg, rgba(var(--rgb-gold), .13) 0 1px, transparent 1px 13px);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 70%);
  mask-image: linear-gradient(90deg, transparent, #000 70%);
  pointer-events: none;
}
.cta-copy { position: relative; }
.cta-copy h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -.03em;
  margin-bottom: 8px;
}
.cta-copy p { color: var(--muted); font-size: .94rem; }
.cta-panel .btn { position: relative; flex: none; }

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
  padding-top: 40px;
}
.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 30px;
  padding-bottom: 30px;
  flex-wrap: wrap;
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand .brand-mark { width: 34px; height: 34px; }
.footer-name {
  font-size: .95rem;
  font-weight: 800;
  letter-spacing: .2em;
  line-height: 1.2;
}
.footer-desc { font-size: .78rem; color: var(--dim); margin-top: 3px; }
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
}
.footer-nav a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .85rem;
  color: var(--muted);
  text-decoration: none;
  transition: color .2s ease;
}
.footer-nav a:hover { color: var(--emerald); }
.footer-nav .ico { width: 12px; height: 12px; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 18px 0 26px;
  border-top: 1px solid var(--line);
  font-size: .76rem;
  color: var(--dim);
}

/* ---------- 下载弹窗 ---------- */
.download-modal {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  margin: auto;
  z-index: 80;
  width: min(580px, calc(100vw - 32px));
  height: fit-content;
  max-height: calc(100vh - 40px);
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  overflow: visible;
}
.download-modal::backdrop {
  background: rgba(2, 6, 5, .74);
  -webkit-backdrop-filter: blur(9px);
  backdrop-filter: blur(9px);
}
.download-modal[open] .modal-panel { animation: modalIn .3s cubic-bezier(.22, .61, .36, 1); }
@keyframes modalIn {
  from { opacity: 0; transform: translateY(14px) scale(.985); }
  to { opacity: 1; transform: none; }
}

.modal-panel {
  position: relative;
  padding: 34px 32px 26px;
  border: 1px solid var(--line-2);
  background:
    linear-gradient(150deg, rgba(var(--rgb-emerald), .08), transparent 46%),
    var(--panel);
  box-shadow: 0 50px 100px -40px #000, 0 0 70px -30px rgba(var(--rgb-emerald), .55);
}
.modal-panel::before,
.modal-panel::after {
  content: "";
  position: absolute;
  width: 18px; height: 18px;
  border: 1px solid var(--gold);
  opacity: .65;
  pointer-events: none;
}
.modal-panel::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.modal-panel::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.modal-close {
  position: absolute;
  top: 12px; right: 12px;
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease;
}
.modal-close:hover { color: var(--text); border-color: rgba(var(--rgb-gold), .5); }

.modal-panel h2 {
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  font-weight: 800;
  letter-spacing: -.02em;
  margin-bottom: 6px;
}
.modal-sub { color: var(--muted); font-size: .85rem; margin-bottom: 22px; }

.download-list { display: grid; gap: 10px; }
.download-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .02);
  text-decoration: none;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
html[data-theme="light"] .download-item { background: rgba(0, 90, 60, .02); }
.download-item:hover {
  border-color: rgba(var(--rgb-emerald), .5);
  background: rgba(var(--rgb-emerald), .07);
  transform: translateX(2px);
}
.download-item.is-primary { border-color: rgba(var(--rgb-gold), .45); }
.download-item.is-primary:hover { border-color: var(--gold); background: rgba(var(--rgb-gold), .07); }

.download-icon {
  width: 40px; height: 40px;
  flex: none;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  color: var(--emerald);
  background: rgba(var(--rgb-emerald), .06);
}
.download-item.is-primary .download-icon { color: var(--gold); border-color: rgba(var(--rgb-gold), .4); background: rgba(var(--rgb-gold), .06); }
.download-icon svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

.download-text { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.download-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .95rem;
  font-weight: 700;
}
.download-label em {
  font-style: normal;
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .12em;
  color: var(--gold);
  border: 1px solid rgba(var(--rgb-gold), .5);
  padding: 1px 6px;
}
.download-meta { font-size: .78rem; color: var(--muted); }
.download-arrow { margin-left: auto; width: 16px; height: 16px; color: var(--dim); transition: transform .2s ease, color .2s ease; }
.download-item:hover .download-arrow { transform: translateX(3px); color: var(--emerald); }

.modal-note {
  display: flex;
  gap: 8px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: .76rem;
  line-height: 1.7;
  color: var(--dim);
}
.modal-note .ico { width: 15px; height: 15px; margin-top: 2px; color: var(--gold); }

/* ---------- 子页面（政策 / 协议 / 联系） ---------- */
.page-head {
  padding: clamp(44px, 6vw, 72px) 0 clamp(26px, 3vw, 36px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(var(--rgb-emerald), .07), transparent 45%);
}
.page-head .kicker { margin-bottom: 14px; }
.page-head h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.2;
}
.page-meta {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--dim);
}
.legal {
  max-width: 840px;
  padding: clamp(32px, 4vw, 52px) 0 clamp(56px, 7vw, 92px);
}
.legal h2 {
  position: relative;
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 32px 0 10px;
  padding-left: 14px;
}
.legal h2::before {
  content: "";
  position: absolute;
  left: 0; top: .45em;
  width: 4px; height: 4px;
  background: var(--gold);
  transform: rotate(45deg);
}
.legal h2:first-child { margin-top: 0; }
.legal p,
.legal li {
  color: var(--muted);
  font-size: .94rem;
  line-height: 1.9;
}
.legal p + p { margin-top: 10px; }
.legal ul {
  margin: 10px 0;
  padding-left: 1.15em;
  list-style: disc;
}
.legal ul li { list-style: disc; }
.legal ul li::marker { color: var(--emerald); }
.legal a { color: var(--emerald); text-decoration: none; border-bottom: 1px solid rgba(var(--rgb-emerald), .35); }
.legal a:hover { border-bottom-color: var(--emerald); }
.legal .note {
  margin-top: 26px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  background: rgba(var(--rgb-gold), .04);
  font-size: .84rem;
  color: var(--dim);
  line-height: 1.8;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}
.contact-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--panel);
  text-decoration: none;
  transition: border-color .2s ease, transform .2s ease;
}
.contact-card:hover { border-color: rgba(var(--rgb-emerald), .5); transform: translateY(-2px); }
.contact-card strong { font-size: .96rem; }
.contact-card span { font-size: .84rem; color: var(--muted); line-height: 1.7; }
.contact-card em {
  font-style: normal;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--gold);
}
@media (max-width: 720px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ---------- 浏览器兼容补丁 ---------- */
/* iOS 14 / 旧版 Safari 无 aspect-ratio 时的占位高度 */
@supports not (aspect-ratio: 1 / 1) {
  .carousel-viewport {
    height: 0;
    padding-bottom: 62.13%;
  }
}

/* 旧版 Safari / 旧版 Chrome 的 flex gap 降级 */
@supports not (gap: 1rem) {
  .nav-list > li + li { margin-left: 6px; }
  .header-actions > * + * { margin-left: 10px; }
  .hero-actions > * + * { margin-left: 22px; }
  .hero-points > li + li { margin-left: 22px; }
  .footer-nav > a + a { margin-left: 26px; }
  .download-list > * + * { margin-top: 10px; }
  .chips > li + li { margin-left: 9px; }
}

/* 不支持 <dialog> 的浏览器：用普通层 + 遮罩兜底 */
body.modal-fallback::before {
  content: "";
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 70;
  background: rgba(2, 6, 5, .74);
}
.download-modal[open] { display: block; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-copy { max-width: 640px; }
  .hero-media { margin-top: 12px; }
  .media-rings { top: -8%; right: 0; bottom: -8%; left: 0; }
  .screen-chip { display: none; }
  .games-inner { grid-template-columns: minmax(0, 1fr); }
  .step-grid { grid-template-columns: 1fr; gap: 12px; }
  .step { padding: 20px 0 4px; background: none; }

  .site-nav {
    position: fixed;
    top: calc(var(--header-h) + 8px);
    right: 12px;
    left: auto;
    width: min(320px, calc(100vw - 24px));
    z-index: 55;
    padding: 6px 14px 14px;
    background: var(--panel);
    border: 1px solid var(--line-2);
    box-shadow: 0 26px 60px -22px rgba(0, 0, 0, .8), 0 0 0 1px rgba(0, 0, 0, .25);
    opacity: 0;
    transform: translateY(-8px) scale(.98);
    transform-origin: top right;
    pointer-events: none;
    transition: opacity .22s ease, transform .22s ease;
  }
  .site-nav.is-open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-list a {
    padding: 14px 4px;
    font-size: 1rem;
    border-bottom: 1px solid var(--line);
  }
  .nav-list a::after { display: none; }
  .nav-toggle { display: flex; }
  .header-actions { margin-left: auto; }
}

@media (max-width: 760px) {
  .container, .header-inner { width: calc(100% - 36px); }
  :root { --header-h: 64px; }
  .brand-text { font-size: .98rem; }
  .brand-text small { letter-spacing: .24em; }

  .hero { padding-top: 34px; }
  .hero-lead { font-size: .97rem; }
  .carousel-nav { width: 30px; height: 46px; }
  .carousel-nav .ico { width: 16px; height: 16px; }
  .carousel-prev { left: 10px; }
  .carousel-next { right: 10px; }
  .hero-actions { gap: 18px; margin: 26px 0 22px; }
  .btn-lg { --h: 50px; padding: 0 26px; font-size: .95rem; }

  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat { padding: 16px 18px; }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .stat-num { font-size: 1rem; }

  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 22px 20px; }
  .feature-index { font-size: 2rem; top: 14px; right: 14px; }
  .feature-tag { right: 64px; }

  .cta-panel { flex-direction: column; align-items: flex-start; gap: 22px; }
  .cta-panel .btn { width: 100%; }

  .faq-a { padding-right: 0; }
  .footer-inner { flex-direction: column; gap: 22px; }
  .footer-bottom { flex-direction: column; }

  .download-modal { width: calc(100vw - 24px); }
  .modal-panel { padding: 26px 20px 20px; }
}

@media (max-width: 420px) {
  .theme-toggle { display: none; }
  .nav-cta { padding: 0 16px; font-size: .88rem; }
  .brand-text small { display: none; }
  .shot-label { font-size: .66rem; }
  .carousel-dot { width: 26px; }
  .carousel-dot.is-active { width: 38px; }
}

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