:root {
  --bg: #05070d;
  --bg2: #080c15;
  --ink: #edf3ff;
  --muted: #93a3bd;
  --dim: #5e6c86;
  --line: rgba(148, 170, 204, 0.16);
  --line-strong: rgba(148, 170, 204, 0.3);
  --accent: #67e8f9;
  --accent2: #a78bfa;
  --gold: #fbbf24;
  --radius: 22px;
  --pad: clamp(20px, 4vw, 56px);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, p { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: rgba(148, 170, 204, 0.22); border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }

/* 环境层：噪点、雪花、光标光晕 */
.grain {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.45;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 3px 3px, 5px 5px;
  background-position: 0 0, 24px 18px;
  mix-blend-mode: overlay;
}

.snow {
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.cursor-glow {
  position: fixed;
  z-index: 4;
  width: 420px;
  height: 420px;
  margin: -210px 0 0 -210px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(103, 232, 249, 0.13), transparent 62%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

@media (hover: hover) and (pointer: fine) {
  .cursor-glow.is-on { opacity: 1; }
}

/* 顶部导航 */
.lnav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
  padding: 0 var(--pad);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, height 0.3s ease;
}

.lnav.is-stuck {
  height: 64px;
  background: rgba(5, 7, 13, 0.72);
  border-bottom-color: var(--line);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.lnav-brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.lnav-mark {
  display: block;
  width: 62px;
  height: 38px;
  object-fit: contain;
  flex: none;
}

.lnav-word { font-size: 16px; font-weight: 800; letter-spacing: 3px; white-space: nowrap; }
.lnav-sub { font-size: 11px; letter-spacing: 1px; color: var(--dim); margin-left: 2px; }

.lnav-links { display: flex; align-items: center; gap: 30px; }

.lnav-links a {
  position: relative;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.4px;
  transition: color 0.2s ease;
}

.lnav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -6px;
  height: 1px;
  background: var(--accent);
  transition: right 0.25s ease;
}

.lnav-links a:hover { color: var(--ink); }
.lnav-links a:hover::after { right: 0; }

.lnav-actions { display: flex; align-items: center; gap: 10px; }
.reward-label-short { display: none; }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.4px;
  white-space: nowrap;
  transition: transform 0.2s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.btn svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; }

.btn-primary {
  background: linear-gradient(120deg, #67e8f9, #a78bfa);
  color: #061019;
  box-shadow: 0 12px 30px rgba(103, 232, 249, 0.18);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 42px rgba(139, 92, 246, 0.28); }

.btn-ghost {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
}

.btn-ghost:hover { background: rgba(255, 255, 255, 0.09); transform: translateY(-2px); }

.btn-sm { padding: 10px 18px; font-size: 12.5px; }
.btn-lg { padding: 17px 32px; font-size: 15px; }

/* Hero 全屏滑动展示 */
.hero {
  position: relative;
  height: 100vh;
  min-height: 660px;
  overflow: hidden;
  background: radial-gradient(900px 600px at 80% 10%, rgba(80, 120, 255, 0.18), transparent 70%), #04060b;
}

.hero-slides { position: absolute; inset: 0; }

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1.1s ease, visibility 1.1s ease;
}

.hero-slide.is-on { opacity: 1; visibility: visible; z-index: 2; }

.hero-media {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(4, 6, 11, 0.92) 0%, rgba(4, 6, 11, 0.55) 46%, rgba(4, 6, 11, 0.2) 100%),
    linear-gradient(180deg, rgba(4, 6, 11, 0.5), rgba(4, 6, 11, 0.85) 78%, #05070d 100%),
    var(--img, linear-gradient(140deg, #0b1224, #17273f 60%, #0a1521));
  background-size: cover;
  background-position: center;
  transform: scale(1.08);
  filter: saturate(1.05) contrast(1.02);
  transition: transform 7s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-slide.is-on .hero-media { transform: scale(1); }

.hero-copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  max-width: 1480px;
  margin: 0 auto;
  padding: 110px var(--pad) 130px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  align-self: flex-start;
  padding: 7px 13px;
  border: 1px solid rgba(103, 232, 249, 0.28);
  border-radius: 999px;
  background: rgba(6, 12, 20, 0.5);
  color: var(--accent);
  font-size: 11.5px;
  letter-spacing: 2px;
  backdrop-filter: blur(8px);
}

.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 10px rgba(52, 211, 153, 0.9);
  animation: pulse 1.8s ease infinite;
}

@keyframes pulse { 50% { opacity: 0.35; transform: scale(0.82); } }

.hero h1 {
  margin-top: 26px;
  font-size: clamp(46px, 7.4vw, 116px);
  line-height: 0.98;
  font-weight: 800;
  letter-spacing: -0.03em;
  text-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, #ffffff 0%, #a5f3fc 38%, #c4b5fd 78%, #ffffff 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: flow 9s linear infinite;
}

@keyframes flow { to { background-position: 200% 0; } }

.hero-sub {
  margin-top: 22px;
  max-width: 560px;
  color: #c3cfe3;
  font-size: clamp(14px, 1.15vw, 17px);
  line-height: 1.75;
  text-shadow: 0 6px 22px rgba(0, 0, 0, 0.6);
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 34px;
  color: #8fa0b9;
  font-size: 12px;
  letter-spacing: 0.6px;
}

.hero-meta span { position: relative; padding: 0 16px; }
.hero-meta span:first-child { padding-left: 0; color: #dbe7fb; }
.hero-meta span + span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1px;
  height: 10px;
  margin-top: -5px;
  background: rgba(148, 170, 204, 0.34);
}

.hero-slide.is-on .hero-copy > * { animation: rise 0.9s both; }
.hero-slide.is-on .hero-copy > *:nth-child(2) { animation-delay: 0.08s; }
.hero-slide.is-on .hero-copy > *:nth-child(3) { animation-delay: 0.16s; }
.hero-slide.is-on .hero-copy > *:nth-child(4) { animation-delay: 0.24s; }
.hero-slide.is-on .hero-copy > *:nth-child(5) { animation-delay: 0.32s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-ui {
  position: absolute;
  left: var(--pad);
  bottom: 34px;
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 22px;
}

.hero-dots { display: flex; gap: 8px; }

.hero-dots button {
  width: 34px;
  height: 4px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.22);
  cursor: pointer;
  transition: background 0.25s ease, width 0.25s ease;
}

.hero-dots button.is-on { width: 58px; background: linear-gradient(90deg, var(--accent), var(--accent2)); }

.hero-count { display: flex; align-items: baseline; gap: 6px; font-size: 11px; color: var(--dim); letter-spacing: 2px; }
.hero-count b { font-size: 17px; color: var(--ink); font-variant-numeric: tabular-nums; }

.hero-arrow {
  position: absolute;
  bottom: 26px;
  z-index: 6;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(8, 13, 22, 0.55);
  color: var(--ink);
  font-size: 17px;
  backdrop-filter: blur(10px);
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.hero-arrow:hover { background: rgba(103, 232, 249, 0.14); border-color: rgba(103, 232, 249, 0.5); transform: scale(1.06); }
.hero-arrow-prev { right: calc(var(--pad) + 56px); }
.hero-arrow-next { right: var(--pad); }

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 30px;
  z-index: 6;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--dim);
  font-size: 10px;
  letter-spacing: 3px;
}

.hero-scroll i {
  width: 1px;
  height: 30px;
  background: linear-gradient(rgba(103, 232, 249, 0.7), transparent);
  animation: scrollLine 2s ease infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
  40% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1); transform-origin: bottom; opacity: 0; }
}

/* 全国雪场覆盖 */
.coverage {
  position: relative;
  z-index: 5;
  max-width: 1400px;
  margin: clamp(32px, 4vw, 56px) auto 0;
  padding: 0 var(--pad);
}

.coverage-inner {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 4.4vw, 58px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    radial-gradient(900px 460px at 6% -18%, rgba(103, 232, 249, 0.16), transparent 62%),
    radial-gradient(760px 420px at 94% -6%, rgba(167, 139, 250, 0.15), transparent 66%),
    rgba(9, 14, 24, 0.86);
  box-shadow: 0 44px 100px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.coverage-inner::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 170, 204, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 170, 204, 0.055) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 72%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 72%);
}

.coverage-head,
.coverage-stats,
.coverage-foot { position: relative; z-index: 2; }

.coverage-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 13px;
  border: 1px solid rgba(103, 232, 249, 0.28);
  border-radius: 999px;
  background: rgba(6, 12, 20, 0.55);
  color: var(--accent);
  font-size: 11.5px;
  letter-spacing: 2px;
}

.coverage h2 {
  margin-top: 22px;
  font-size: clamp(30px, 4.6vw, 62px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.coverage-desc {
  max-width: 760px;
  margin-top: 20px;
  color: var(--muted);
  font-size: clamp(13.5px, 1.1vw, 16px);
  line-height: 1.85;
}

.coverage-desc b {
  color: var(--ink);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.coverage-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  margin-top: clamp(26px, 3.2vw, 44px);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: var(--line);
}

.coverage-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 26px;
  margin-top: clamp(22px, 2.6vw, 32px);
}

.coverage-regions {
  color: var(--dim);
  font-size: 11.5px;
  letter-spacing: 1.6px;
  line-height: 1.8;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 28px;
  background: rgba(10, 15, 26, 0.72);
  border: 1px solid var(--line);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.coverage-stats .stat {
  border: 0;
  border-radius: 0;
  background: rgba(8, 12, 20, 0.66);
}

.stat b {
  font-size: clamp(24px, 2.4vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(100deg, #ffffff, #a5f3fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}

.stat span { font-size: 11px; letter-spacing: 1.4px; color: var(--dim); }

/* 滚动字幕 */
.marquee {
  overflow: hidden;
  margin-top: 84px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.012);
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 26px;
  width: max-content;
  animation: marquee 32s linear infinite;
}

.marquee-track span { font-size: 12px; letter-spacing: 3px; color: var(--muted); white-space: nowrap; }
.marquee-track i { color: var(--accent); font-style: normal; opacity: 0.6; }

@keyframes marquee { to { transform: translateX(-50%); } }

/* 通用区块 */
.section {
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(80px, 9vw, 130px) var(--pad);
}

.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 46px;
}

.sec-kicker {
  margin-bottom: 16px;
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 3.4px;
  opacity: 0.85;
}

.sec-head h2, .community h2, .cta h2 {
  font-size: clamp(32px, 4.4vw, 62px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.accent {
  background: linear-gradient(100deg, #67e8f9, #a78bfa 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sec-desc {
  max-width: 620px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.8;
}

.rail-nav { display: flex; gap: 10px; flex: none; }

.rail-nav button {
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  font-size: 16px;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.rail-nav button:hover { background: rgba(103, 232, 249, 0.14); border-color: rgba(103, 232, 249, 0.45); transform: translateY(-2px); }
.rail-nav button:disabled { opacity: 0.32; cursor: default; transform: none; }

/* 横向滑动展示栏 */
.rail {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 4px 2px 26px;
  cursor: grab;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.rail::-webkit-scrollbar { display: none; }
.rail.is-dragging { cursor: grabbing; scroll-snap-type: none; }
.rail.is-dragging * { pointer-events: none; }

.rail-card {
  position: relative;
  flex: 0 0 clamp(300px, 30vw, 420px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease, box-shadow 0.35s ease;
}

.rail-card:hover {
  transform: translateY(-6px);
  border-color: rgba(103, 232, 249, 0.38);
  box-shadow: 0 26px 60px rgba(4, 10, 20, 0.62);
}

.rail-media { position: relative; height: 224px; overflow: hidden; background: #0b1420; }

.rail-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.rail-card:hover .rail-media img { transform: scale(1.06); }

.rail-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 6, 11, 0.05) 30%, rgba(5, 7, 13, 0.92) 100%);
}

.rail-chip {
  position: absolute;
  left: 16px;
  top: 16px;
  z-index: 2;
  padding: 5px 11px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(5, 9, 16, 0.55);
  color: #d9e6fa;
  font-size: 10.5px;
  letter-spacing: 1px;
  backdrop-filter: blur(8px);
}

.rail-body { display: flex; flex-direction: column; gap: 12px; padding: 24px; flex: 1; }

.rail-kicker { font-size: 10px; letter-spacing: 2.6px; color: var(--accent); opacity: 0.8; }
.rail-body h3 { font-size: 23px; font-weight: 700; letter-spacing: -0.01em; }
.rail-text { color: var(--muted); font-size: 13px; line-height: 1.75; flex: 1; }

.rail-stats {
  display: flex;
  gap: 22px;
  margin: 4px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.rail-stats li { display: flex; flex-direction: column; gap: 3px; }
.rail-stats b { font-size: 17px; font-weight: 700; font-variant-numeric: tabular-nums; }
.rail-stats span { font-size: 10px; letter-spacing: 1px; color: var(--dim); }

.rail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  margin-top: 6px;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink);
  font-size: 12px;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.rail-link span { color: var(--accent); transition: transform 0.25s ease; }
.rail-link:hover { background: rgba(103, 232, 249, 0.12); border-color: rgba(103, 232, 249, 0.45); }
.rail-link:hover span { transform: translateX(4px); }

.rail-card-end { background: radial-gradient(420px 300px at 80% 0%, rgba(139, 92, 246, 0.22), transparent 70%), rgba(255, 255, 255, 0.03); }
.rail-end { display: flex; flex-direction: column; justify-content: center; gap: 14px; padding: 32px; height: 100%; }
.rail-end h3 { font-size: clamp(26px, 2.6vw, 36px); line-height: 1.2; font-weight: 800; }

/* 玩法 */
.sec-head-center { flex-direction: column; align-items: center; text-align: center; }
.sec-head-center .sec-desc { margin-left: auto; margin-right: auto; }

.feature-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 20px; }

.feature {
  position: relative;
  grid-column: span 5;
  min-height: 290px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: radial-gradient(420px 240px at 100% 0%, rgba(103, 232, 249, 0.08), transparent 65%), rgba(255, 255, 255, 0.025);
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.35s ease, background 0.3s ease;
}

.feature-wide { grid-column: span 7; }

.feature:hover {
  transform: translateY(-5px);
  border-color: rgba(103, 232, 249, 0.34);
  background: radial-gradient(420px 240px at 100% 0%, rgba(103, 232, 249, 0.14), transparent 65%), rgba(255, 255, 255, 0.04);
}

.feature-head { display: flex; align-items: center; justify-content: space-between; }
.feature-no { font-size: 10px; letter-spacing: 2.4px; color: var(--dim); }

.feature-ico {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(103, 232, 249, 0.3);
  border-radius: 12px;
  background: rgba(103, 232, 249, 0.08);
  color: var(--accent);
  font-size: 16px;
}

.feature h3 { margin-top: 8px; font-size: 23px; font-weight: 700; letter-spacing: -0.01em; }
.feature p { max-width: 440px; color: var(--muted); font-size: 13.5px; line-height: 1.8; }

/* 卡片里的装饰可视化 */
.viz { position: relative; flex: 1; min-height: 96px; margin-top: 10px; }

.viz-trails .viz-line {
  position: absolute;
  left: 6%;
  height: 44px;
  width: 88%;
  border-radius: 40% 55% 45% 50%;
  border-top: 1px solid rgba(103, 232, 249, 0.5);
  border-bottom: 1px solid rgba(167, 139, 250, 0.25);
  transform: rotate(-4deg);
}

.viz-trails .l1 { bottom: 56px; opacity: 0.9; }
.viz-trails .l2 { bottom: 38px; left: 14%; width: 74%; transform: rotate(3deg); opacity: 0.65; }
.viz-trails .l3 { bottom: 20px; left: 3%; width: 92%; transform: rotate(-2deg); opacity: 0.45; }

.viz-dot {
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 14px rgba(103, 232, 249, 0.9);
}

.viz-dot.d1 { left: 18%; bottom: 62px; }
.viz-dot.d2 { left: 56%; bottom: 52px; background: #34d399; box-shadow: 0 0 14px rgba(52, 211, 153, 0.9); }
.viz-dot.d3 { left: 82%; bottom: 42px; background: var(--gold); box-shadow: 0 0 14px rgba(251, 191, 36, 0.8); }

.viz-terrain i {
  position: absolute;
  left: 8%;
  right: 8%;
  height: 12px;
  border-bottom: 1px solid rgba(167, 139, 250, 0.5);
  border-radius: 50%;
  transform: rotate(-2deg);
}

.viz-terrain i:nth-child(1) { top: 16%; opacity: 0.35; }
.viz-terrain i:nth-child(2) { top: 32%; opacity: 0.5; left: 4%; }
.viz-terrain i:nth-child(3) { top: 48%; opacity: 0.7; }
.viz-terrain i:nth-child(4) { top: 64%; opacity: 0.85; left: 12%; }
.viz-terrain i:nth-child(5) { top: 80%; opacity: 1; }

.viz-stars { display: flex; align-items: center; gap: 8px; }
.viz-stars b { font-size: 26px; color: var(--gold); text-shadow: 0 0 20px rgba(251, 191, 36, 0.45); }

.viz-checkin { display: flex; align-items: center; justify-content: flex-start; padding-left: 10px; }

.checkin-rings {
  position: absolute;
  left: 40px;
  width: 96px;
  height: 96px;
  border: 1px solid rgba(103, 232, 249, 0.45);
  border-radius: 50%;
  box-shadow: 0 0 0 10px rgba(103, 232, 249, 0.06), 0 0 0 22px rgba(103, 232, 249, 0.03);
}

.checkin-pin {
  position: absolute;
  left: 83px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 18px rgba(52, 211, 153, 0.9);
}

.viz-checkin em {
  margin-left: auto;
  font-style: normal;
  font-size: 30px;
  font-weight: 800;
  background: linear-gradient(100deg, #34d399, #67e8f9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* 社区 */
.community-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(30px, 5vw, 80px);
  align-items: center;
  padding: clamp(34px, 4vw, 56px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    radial-gradient(700px 380px at 12% 0%, rgba(56, 189, 248, 0.14), transparent 65%),
    radial-gradient(600px 420px at 92% 100%, rgba(139, 92, 246, 0.16), transparent 65%),
    rgba(255, 255, 255, 0.02);
}

.community-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.community-quote {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 34px;
  border: 1px solid rgba(103, 232, 249, 0.22);
  border-radius: 22px;
  background: rgba(7, 12, 21, 0.6);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.community-quote::before {
  content: "“";
  position: absolute;
  left: 24px;
  top: 6px;
  font-size: 54px;
  color: rgba(103, 232, 249, 0.3);
}

.community-quote p { font-size: clamp(19px, 2vw, 25px); line-height: 1.6; font-weight: 600; }
.community-quote span { font-size: 12px; color: var(--dim); letter-spacing: 0.6px; }

.quote-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.quote-tags b {
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 500;
}

/* 结尾 CTA */
.cta {
  position: relative;
  max-width: 1400px;
  margin: 0 auto 100px;
  padding: clamp(80px, 10vw, 140px) var(--pad);
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 34px;
  overflow: hidden;
  background:
    radial-gradient(700px 420px at 50% -10%, rgba(56, 189, 248, 0.2), transparent 66%),
    radial-gradient(620px 420px at 78% 120%, rgba(139, 92, 246, 0.22), transparent 66%),
    rgba(255, 255, 255, 0.02);
}

.cta::after {
  content: "";
  position: absolute;
  left: 12%;
  right: 12%;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(103, 232, 249, 0.6), transparent);
}

.cta-kicker { color: var(--accent); font-size: 11px; letter-spacing: 4px; margin-bottom: 20px; }
.cta h2 { font-size: clamp(38px, 5.4vw, 78px); }
.cta > p:not(.cta-kicker) { margin-top: 16px; color: var(--muted); font-size: 14.5px; }
.cta .btn { margin-top: 38px; }

/* 页脚 */
.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 40px var(--pad);
  border-top: 1px solid var(--line);
}

.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand div { display: flex; flex-direction: column; gap: 2px; }
.footer-brand b { font-size: 14px; letter-spacing: 2.6px; }
.footer-brand span { font-size: 10.5px; color: var(--dim); letter-spacing: 0.8px; }
.footer-note { color: var(--dim); font-size: 11px; max-width: 460px; line-height: 1.7; }
.footer-links { display: flex; align-items: center; gap: 18px; }

.footer-links a { color: var(--muted); font-size: 12px; transition: color 0.2s ease; }
.footer-links a:hover { color: var(--accent); }

.footer-reward {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.footer-reward:hover {
  color: var(--accent);
  border-color: rgba(103, 232, 249, 0.45);
  background: rgba(103, 232, 249, 0.08);
}

/* 打赏弹层 */
.reward {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.reward[hidden] { display: none; }

.reward-mask {
  position: absolute;
  inset: 0;
  background: rgba(3, 6, 12, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.reward-card {
  position: relative;
  z-index: 2;
  width: min(360px, 100%);
  padding: 30px 28px 26px;
  border: 1px solid var(--line-strong);
  border-radius: 24px;
  background: linear-gradient(160deg, rgba(15, 22, 36, 0.97), rgba(8, 12, 20, 0.97));
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.6);
  text-align: center;
  animation: rewardIn 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes rewardIn {
  from { opacity: 0; transform: translateY(14px) scale(0.97); }
  to { opacity: 1; transform: none; }
}

.reward-close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 16px;
  line-height: 1;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.reward-close:hover { color: var(--ink); border-color: var(--line-strong); }

.reward-card h3 { margin-top: 4px; font-size: 22px; letter-spacing: -0.01em; }
.reward-desc { margin-top: 12px; color: var(--muted); font-size: 12.5px; line-height: 1.75; }

.reward-qr {
  display: grid;
  place-items: center;
  width: 212px;
  height: 212px;
  margin: 22px auto 0;
  padding: 10px;
  border-radius: 16px;
  background: #fff;
}

.reward-qr img { width: 100%; height: 100%; object-fit: contain; }
.reward-fallback { color: #5b6472; font-size: 12px; }
.reward-note { margin-top: 14px; font-size: 11px; letter-spacing: 0.6px; color: var(--dim); }

/* 进场动画 */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.is-in { opacity: 1; transform: none; }

/* 响应式 */
@media (max-width: 1080px) {
  .lnav-links { gap: 20px; }
  .coverage-stats { grid-template-columns: repeat(2, 1fr); }
  .coverage-stats .stat:last-child { grid-column: span 2; }

  .feature { grid-column: span 6; }
  .feature-wide { grid-column: span 6; }
  .community-inner { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .lnav-links { display: none; }
  /* 顶部安全区：logo 和按钮下移到刘海/状态栏以下 */
  .lnav {
    height: calc(64px + env(safe-area-inset-top));
    padding: env(safe-area-inset-top) var(--pad) 0;
    gap: 8px;
  }
  .lnav.is-stuck {
    height: calc(56px + env(safe-area-inset-top));
    padding-top: env(safe-area-inset-top);
  }
  .lnav-mark { width: 32px; height: 32px; border-radius: 10px; font-size: 15px; }
  .lnav-word { font-size: 14px; letter-spacing: 2px; }
  .lnav-actions { gap: 6px; }
  .lnav-actions .btn-sm { min-height: 40px; padding: 9px 10px; font-size: 11px; }
  .lnav-actions > a svg { display: none; }
  .reward-label-full { display: none; }
  .reward-label-short { display: inline; }

  /* Hero 改成横向吸附轮播：高度交给内容，不再固定 100vh */
  .hero { height: auto; min-height: 0; }
  .hero-slides {
    position: relative;
    inset: auto;
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .hero-slides::-webkit-scrollbar { display: none; }
  .hero-slide {
    position: relative;
    inset: auto;
    flex: 0 0 100%;
    min-height: 100dvh;
    min-height: 100svh;
    opacity: 1;
    visibility: visible;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    transition: none;
  }
  .hero-slide.is-on { z-index: auto; }
  .hero-media,
  .hero-slide.is-on .hero-media { transform: none; transition: none; }
  .hero-copy {
    height: auto;
    min-height: 100dvh;
    min-height: 100svh;
    padding: calc(88px + env(safe-area-inset-top)) 20px calc(132px + env(safe-area-inset-bottom));
  }
  .hero h1 { font-size: clamp(40px, 11vw, 64px); }
  .hero-sub { font-size: 13.5px; }
  .hero-sub br { display: none; }
  .hero-meta span { padding: 0 10px; }
  .hero-scroll { display: none; }
  .hero-arrow { display: none; }
  .hero-ui { bottom: calc(24px + env(safe-area-inset-bottom)); left: 20px; }

  .lnav-sub { display: none; }
  .section { padding: 72px 20px; }
  .coverage { margin-top: 18px; padding: 0 16px; }
  .coverage-inner { padding: 24px 20px 22px; border-radius: 22px; }
  .coverage h2 { font-size: clamp(28px, 8.4vw, 40px); }
  .coverage-desc { font-size: 13px; }
  .coverage-stats { margin-top: 22px; }
  .coverage-stats .stat { padding: 18px 16px; }
  .coverage-foot { flex-direction: column; align-items: flex-start; }
  .coverage-foot .btn { width: 100%; justify-content: center; }
  .coverage-regions { font-size: 10.5px; letter-spacing: 1.1px; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 26px; }
  .sec-head h2 { font-size: clamp(30px, 8vw, 42px); }

  .rail-card { flex-basis: 82vw; }
  .feature-grid { grid-template-columns: 1fr; gap: 16px; }
  .feature, .feature-wide { grid-column: span 1; }

  .footer {
    flex-direction: column;
    align-items: flex-start;
    padding-bottom: calc(28px + env(safe-area-inset-bottom));
  }

  .reward { align-items: flex-end; padding: 0; }
  .reward-card {
    width: 100%;
    border-radius: 24px 24px 0 0;
    border-bottom: 0;
    padding: 28px 22px calc(24px + env(safe-area-inset-bottom));
  }
}

/* 横屏手机的刘海安全区：避免文字被左右挖孔裁掉 */
@media (max-width: 1023px) and (orientation: landscape) {
  .lnav,
  .footer,
  .section,
  .coverage {
    padding-left: max(var(--pad), env(safe-area-inset-left));
    padding-right: max(var(--pad), env(safe-area-inset-right));
  }
  .hero-copy {
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
  }
  .hero-ui { left: max(var(--pad), env(safe-area-inset-left)); }
}

@media (max-width: 380px) {
  .hero-meta { font-size: 11px; }
  .hero-meta span { padding: 0 7px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .snow, .cursor-glow { display: none; }
  .hero-media { transition: none; }
  .hero-slide.is-on .hero-copy > * { animation: none; }
  .hero h1 em { animation: none; }
  .marquee-track { animation-duration: 90s; }
  .reveal { opacity: 1; transform: none; transition: none; }
}