/*
 * ARG 官网样式 · 单文件、零依赖、零构建
 *
 * 配色沿用 DApp 的「银翠 silver-jade」（dapp/src/styles/theme.css）：银承担结构与标题，
 * 翠绿只做点睛。**变量在这里另立一份**：官网是桌面优先宽栅格，DApp 是 480px 单栏，
 * 间距与字号刻度不通用，共用一份会互相牵制。
 *
 * 动效清单（刻意与 UNY 官网错开，别往回抄粒子/星空/打字机/甜甜圈）：
 *   液态金属流光背景、熔银环、标题扫光、Bento 网格、粘性流程推进、
 *   3D 倾斜卡、鼠标聚光、堆叠分配条、通缩轴、数字逐位竖向翻滚（JS 侧）。
 *   **字符碰撞类特效客户明确不要**（2026-09-16），不要再加回来。
 *
 * 断点两个：960px（多栏→双栏、导航收抽屉）、640px（→单栏）。
 */

/* 数字与英文标题用 Space Grotesk，来源 dapp/src/assets/fonts（同一套字体，视觉统一） */
@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/SpaceGrotesk-Regular.ttf") format("truetype");
  font-weight: 400 700;
  font-display: swap;
}

/* ============================================================
 * 令牌
 * ============================================================ */
:root {
  --c-accent: #a3e635;
  --c-accent-strong: #bef264;
  --c-accent-dim: #65850f;
  --c-accent-line: rgba(163, 230, 53, 0.45);
  --c-accent-glow: rgba(163, 230, 53, 0.25);

  --c-silver: #d6dade;
  --c-silver-dim: #9aa1a9;
  --c-silver-line: rgba(214, 218, 222, 0.26);

  --c-bg: #05070a;
  --c-surface: #0d1014;
  --c-surface-2: #14181e;
  --c-surface-3: #1c2129;

  --c-text: #f2f4f6;
  --c-text-dim: #9aa1a9;
  --c-text-muted: #666e78;
  --c-text-on-accent: #0a0f04;

  --c-border: rgba(255, 255, 255, 0.08);
  --c-border-strong: rgba(255, 255, 255, 0.16);

  /* 金属渐变：多停点模拟高光与暗部，白银质感的关键 */
  --g-silver: linear-gradient(
    170deg,
    #ffffff 0%,
    #e8ecef 22%,
    #b9c0c7 44%,
    #8f979f 58%,
    #dfe4e8 78%,
    #a8b0b8 100%
  );
  --g-hairline: linear-gradient(90deg, transparent, var(--c-silver-line), transparent);

  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-pill: 999px;

  --wrap: 1180px;
  --pad: 24px;
  --nav-h: 70px;

  --t-fast: 140ms ease;
  --t-base: 260ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  /* 吸顶导航会盖住锚点标题，用 scroll-padding 把锚点顶到导航下方 */
  scroll-padding-top: calc(var(--nav-h) + 14px);
}

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 等宽数字：金额与比例竖向对齐才好读 */
.num {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.24;
  font-weight: 700;
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.accent {
  color: var(--c-accent);
}

.muted {
  color: var(--c-text-muted);
  font-size: 14px;
}

.tag {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 13px;
  border: 1px solid var(--c-accent-line);
  border-radius: var(--r-pill);
  color: var(--c-accent);
  font-size: 13px;
  letter-spacing: 0.09em;
}

/* ============================================================
 * 背景三层：流光 + 网格 + 噪点
 * 全部 CSS，不开 canvas——省电、不占主线程，移动端也不掉帧
 * ============================================================ */
.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

/* 液态金属流光：一个巨大的 conic 渐变缓慢自转，靠 blur 化成光雾 */
.bg__flow {
  position: absolute;
  top: -45vh;
  left: 50%;
  width: 150vw;
  height: 150vw;
  margin-left: -75vw;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    rgba(214, 218, 222, 0.1) 40deg,
    transparent 90deg,
    rgba(163, 230, 53, 0.07) 160deg,
    transparent 220deg,
    rgba(214, 218, 222, 0.08) 300deg,
    transparent 360deg
  );
  filter: blur(80px);
  animation: spin 60s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(1turn);
  }
}

/* 细网格：给暗背景一点结构感，越往下越淡 */
.bg__grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
}

/* 噪点：内联 SVG，避免多一次图片请求；压住大面积渐变的塑料感 */
.bg__noise {
  position: absolute;
  inset: 0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================================
 * 顶部滚动进度
 * ============================================================ */
.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  height: 2px;
  background: transparent;
}

.progress i {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--c-silver), var(--c-accent));
  box-shadow: 0 0 10px var(--c-accent-glow);
}

/* ============================================================
 * 按钮
 * ============================================================ */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  overflow: hidden;
  transition: transform var(--t-fast), box-shadow var(--t-fast), border-color var(--t-fast),
    background var(--t-fast);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--accent {
  background: linear-gradient(180deg, var(--c-accent-strong), var(--c-accent));
  color: var(--c-text-on-accent);
  box-shadow: 0 8px 26px var(--c-accent-glow);
}

.btn--accent:hover {
  box-shadow: 0 12px 34px var(--c-accent-glow);
}

/* 主按钮上一道扫光，只在 hover 时跑一次 */
.btn--accent::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -60%;
  width: 40%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  transform: skewX(-18deg);
  transition: left 620ms ease;
}

.btn--accent:hover::after {
  left: 120%;
}

.btn--ghost {
  border-color: var(--c-border-strong);
  background: rgba(255, 255, 255, 0.03);
  color: var(--c-text);
  backdrop-filter: blur(6px);
}

.btn--ghost:hover {
  border-color: var(--c-silver-line);
  background: rgba(255, 255, 255, 0.07);
}

.btn--sm {
  min-height: 38px;
  padding: 0 16px;
  font-size: 14px;
}

.btn--lg {
  min-height: 54px;
  padding: 0 32px;
  font-size: 16px;
}

/* ============================================================
 * 导航
 * ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background var(--t-base), border-color var(--t-base);
}

/* 滚动后才上背景：首屏保持通透 */
.nav.is-stuck {
  background: rgba(5, 7, 10, 0.82);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--c-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: 22px;
  height: var(--nav-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex: none;
}

.brand__mark {
  border-radius: 9px;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand__name {
  font-size: 19px;
  letter-spacing: 0.07em;
}

.brand__sub {
  color: var(--c-text-muted);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
  font-size: 15px;
}

.nav__links a {
  position: relative;
  color: var(--c-text-dim);
  padding: 4px 0;
  transition: color var(--t-fast);
}

/* 当前区块下划线：从中间展开，比整段变色更克制 */
.nav__links a::after {
  content: "";
  position: absolute;
  left: 50%;
  right: 50%;
  bottom: 0;
  height: 1px;
  background: var(--c-accent);
  transition: left var(--t-base), right var(--t-base);
}

.nav__links a:hover,
.nav__links a.is-on {
  color: var(--c-text);
}

.nav__links a.is-on::after {
  left: 0;
  right: 0;
}

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

/* 语言胶囊：两个字都在，当前那个高亮，一眼看出可切 */
.lang {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 38px;
  padding: 0 4px;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r-pill);
  background: transparent;
  font-family: inherit;
  cursor: pointer;
}

.lang__i {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 10px;
  border-radius: var(--r-pill);
  color: var(--c-text-muted);
  font-size: 13px;
  font-weight: 600;
  transition: background var(--t-fast), color var(--t-fast);
}

.lang__i.is-on {
  background: rgba(255, 255, 255, 0.1);
  color: var(--c-text);
}

.burger {
  display: none;
  width: 40px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r-sm);
  background: transparent;
  cursor: pointer;
}

.burger span {
  display: block;
  width: 18px;
  height: 1.5px;
  margin: 3.5px auto;
  background: var(--c-text);
  transition: transform var(--t-fast), opacity var(--t-fast);
}

.burger.is-on span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.burger.is-on span:nth-child(2) {
  opacity: 0;
}

.burger.is-on span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* ============================================================
 * 首屏
 * ============================================================ */
.hero {
  padding: calc(var(--nav-h) + 76px) 0 84px;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 48px;
  align-items: center;
}

.hero__title {
  font-size: clamp(36px, 5.4vw, 60px);
  letter-spacing: -0.015em;
}

/* 金属扫光标题：渐变背景裁进文字，背景位置来回动 */
.sheen {
  display: block;
  background: linear-gradient(
      100deg,
      #8f979f 0%,
      #ffffff 18%,
      #e8ecef 32%,
      #9aa1a9 48%,
      #ffffff 62%,
      #b9c0c7 78%,
      #8f979f 100%
    )
    0 0 / 240% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: sheen 7s ease-in-out infinite;
  filter: drop-shadow(0 2px 16px rgba(214, 218, 222, 0.16));
}

@keyframes sheen {
  0%,
  100% {
    background-position: 0 0;
  }
  50% {
    background-position: 100% 0;
  }
}

.hero__title2 {
  display: block;
  margin-top: 12px;
  color: var(--c-text);
  font-size: clamp(17px, 2vw, 24px);
  font-weight: 600;
}

.hero__desc {
  max-width: 560px;
  margin-top: 22px;
  color: var(--c-text-dim);
  font-size: 17px;
}

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

.hero__note {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  max-width: 560px;
  margin-top: 26px;
  padding: 13px 18px;
  border: 1px solid var(--c-accent-line);
  border-radius: var(--r-md);
  background: rgba(163, 230, 53, 0.05);
  color: var(--c-text-dim);
  font-size: 14px;
}

.dot {
  flex: none;
  width: 7px;
  height: 7px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 0 0 var(--c-accent-glow);
  animation: pulse 2.4s ease-out infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(163, 230, 53, 0.5);
  }
  100% {
    box-shadow: 0 0 0 12px rgba(163, 230, 53, 0);
  }
}

/* ---------- 熔银环：官网独有的品牌符号 ---------- */
.hero__art {
  display: flex;
  justify-content: center;
}

.orb {
  position: relative;
  display: grid;
  place-items: center;
  width: min(400px, 78vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 42%, #232a32 0%, #0e1216 62%, #080b0e 100%);
  box-shadow: inset 0 2px 30px rgba(255, 255, 255, 0.06), 0 30px 70px rgba(0, 0, 0, 0.6);
}

/* 两圈描边反向慢转，边缘留一段缺口才看得出在动 */
.orb__ring,
.orb__ring--2 {
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  border: 1px solid transparent;
  background: conic-gradient(
      from 0deg,
      transparent 0deg,
      var(--c-silver-line) 60deg,
      transparent 140deg,
      var(--c-accent-line) 220deg,
      transparent 300deg
    )
    border-box;
  mask: linear-gradient(#000 0 0) padding-box exclude, linear-gradient(#000 0 0);
  -webkit-mask: linear-gradient(#000 0 0) padding-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  animation: spin 18s linear infinite;
}

.orb__ring--2 {
  inset: 17%;
  animation-duration: 26s;
  animation-direction: reverse;
  opacity: 0.7;
}

/* 熔银内核：金属渐变 + 呼吸 */
.orb__core {
  position: absolute;
  inset: 27%;
  border-radius: 50%;
  background: var(--g-silver);
  opacity: 0.12;
  filter: blur(6px);
  animation: breathe 4.6s ease-in-out infinite;
}

@keyframes breathe {
  0%,
  100% {
    opacity: 0.1;
    transform: scale(0.97);
  }
  50% {
    opacity: 0.2;
    transform: scale(1.02);
  }
}

/* 镜面横扫：一道细光斜掠过环面 */
.orb__sweep {
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  background: linear-gradient(115deg, transparent 42%, rgba(255, 255, 255, 0.14) 50%, transparent 58%);
  animation: sweep 5.4s ease-in-out infinite;
}

@keyframes sweep {
  0%,
  62%,
  100% {
    transform: translateX(-38%);
    opacity: 0;
  }
  70% {
    opacity: 1;
  }
  90% {
    transform: translateX(38%);
    opacity: 0;
  }
}

.orb__k,
.orb__n {
  position: relative;
  background: var(--g-silver);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: clamp(46px, 9vw, 76px);
  line-height: 1;
}

.orb__k {
  transform: translate(-38%, -10%);
}

.orb__n {
  position: absolute;
  transform: translate(34%, 30%);
  font-size: clamp(34px, 6.6vw, 54px);
  opacity: 0.72;
}

.orb__sep {
  position: absolute;
  width: clamp(66px, 13vw, 110px);
  height: 1px;
  background: var(--c-silver-line);
  transform: rotate(-58deg);
}

.orb__label {
  position: absolute;
  bottom: 19%;
  color: var(--c-text-muted);
  font-size: 13px;
  font-style: normal;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- 数据条 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 64px 0 0;
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  background: var(--c-border);
  overflow: hidden;
}

.stat {
  padding: 22px 16px;
  background: rgba(13, 16, 20, 0.72);
  backdrop-filter: blur(6px);
  text-align: center;
}

.stat dt {
  color: var(--c-text-muted);
  font-size: 13px;
}

.stat dd {
  margin: 5px 0 0;
}

.stat dd b {
  background: var(--g-silver);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: clamp(22px, 2.4vw, 30px);
}

/* ============================================================
 * 通用区块
 * ============================================================ */
.sec {
  padding: 96px 0;
}

.sec--alt {
  position: relative;
  background: rgba(13, 16, 20, 0.6);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  backdrop-filter: blur(4px);
}

.sec__head {
  max-width: 780px;
  margin: 0 auto 48px;
  text-align: center;
}

.sec__title {
  font-size: clamp(27px, 3.3vw, 38px);
}

.sec__desc {
  margin-top: 16px;
  color: var(--c-text-dim);
  font-size: 16px;
}

.tip {
  margin-top: 28px;
  padding: 14px 20px;
  border-left: 2px solid var(--c-silver-line);
  color: var(--c-text-muted);
  font-size: 14px;
}

/* ============================================================
 * 粘性流程：左列吸顶跟随，右列滚动
 * ============================================================ */
.flow {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 56px;
  align-items: start;
  margin-bottom: 56px;
}

.flow__side {
  position: sticky;
  top: calc(var(--nav-h) + 40px);
}

.flow__side .sec__title,
.flow__side .sec__desc {
  text-align: left;
}

.flow__dots {
  display: grid;
  gap: 2px;
  margin-top: 30px;
}

.flow__dots li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 14px;
  border-radius: var(--r-md);
  color: var(--c-text-muted);
  font-size: 15px;
  transition: background var(--t-base), color var(--t-base);
}

.flow__dots li b {
  color: var(--c-text-muted);
  font-size: 13px;
  letter-spacing: 0.08em;
  transition: color var(--t-base);
}

.flow__dots li.is-on {
  background: rgba(255, 255, 255, 0.045);
  color: var(--c-text);
}

.flow__dots li.is-on b {
  color: var(--c-accent);
}

.flow__list {
  display: grid;
  gap: 20px;
}

.fstep {
  position: relative;
  padding: 28px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  background: rgba(20, 24, 30, 0.66);
  backdrop-filter: blur(8px);
}

/* 卡片顶部一道银色高光线，成本低但质感提升明显 */
.fstep::before,
.card::before,
.tier::before,
.calc::before,
.mini::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  right: 20px;
  height: 1px;
  background: var(--g-hairline);
}

.fstep__no {
  color: var(--c-accent-dim);
  font-size: 14px;
  letter-spacing: 0.14em;
}

.fstep__title {
  margin-top: 6px;
  font-size: 22px;
}

.fstep__desc {
  margin-top: 10px;
  color: var(--c-text-dim);
  font-size: 15px;
}

/* 档位小胶囊 */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.chip {
  padding: 5px 14px;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r-pill);
  color: var(--c-silver);
  font-size: 14px;
}

.chip--unit {
  border-color: transparent;
  color: var(--c-text-muted);
}

/* 开奖时刻 */
.clock {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  padding: 12px 14px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  background: rgba(0, 0, 0, 0.25);
}

.clock__i {
  color: var(--c-text-muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.clock b {
  color: var(--c-silver);
  font-size: 15px;
}

.clock__tz {
  margin-left: auto;
  color: var(--c-text-muted);
  font-size: 12px;
}

/* 11 个席位，第一个是抢中位 */
.seats {
  display: flex;
  gap: 7px;
  margin-top: 20px;
}

.seat {
  flex: 1;
  height: 34px;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.03);
}

.seat--win {
  border-color: var(--c-accent-line);
  background: linear-gradient(180deg, rgba(163, 230, 53, 0.28), rgba(163, 230, 53, 0.06));
  box-shadow: 0 0 16px var(--c-accent-glow);
  animation: seat 3.2s ease-in-out infinite;
}

@keyframes seat {
  0%,
  100% {
    box-shadow: 0 0 10px rgba(163, 230, 53, 0.18);
  }
  50% {
    box-shadow: 0 0 22px rgba(163, 230, 53, 0.42);
  }
}

/* ============================================================
 * 卡片与鼠标聚光
 * ============================================================ */
.duo {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.duo--fee {
  margin-top: 24px;
}

.trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  position: relative;
  padding: 28px 26px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  background: rgba(20, 24, 30, 0.66);
  backdrop-filter: blur(8px);
  overflow: hidden;
}

/* 聚光：JS 把鼠标位置写进 --mx/--my，这里画一团跟手的柔光 */
.spot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    220px circle at var(--mx, 50%) var(--my, 0%),
    rgba(214, 218, 222, 0.09),
    transparent 60%
  );
  opacity: 0;
  transition: opacity var(--t-base);
  pointer-events: none;
}

.spot:hover::after {
  opacity: 1;
}

.card--win {
  border-color: var(--c-accent-line);
  background: linear-gradient(180deg, rgba(163, 230, 53, 0.07), rgba(20, 24, 30, 0.7) 58%);
}

.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.card__title {
  font-size: 21px;
}

.card__desc {
  color: var(--c-text-dim);
  font-size: 15px;
}

.card__desc + .card__desc {
  margin-top: 12px;
}

.badge {
  flex: none;
  padding: 3px 12px;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r-pill);
  color: var(--c-text-dim);
  font-size: 13px;
}

.badge--accent {
  border-color: var(--c-accent-line);
  color: var(--c-accent);
}

.list {
  display: grid;
  gap: 12px;
  color: var(--c-text-dim);
  font-size: 15px;
}

.list li {
  position: relative;
  padding-left: 18px;
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-silver-dim);
}

.list b {
  color: var(--c-text);
}

.list--sm {
  gap: 9px;
  font-size: 14px;
}

/* ============================================================
 * Bento 网格（资产包）
 * ============================================================ */
.bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-areas:
    "a a b b"
    "a a c d";
  gap: 20px;
}

.bento__a {
  grid-area: a;
}

.bento__b {
  grid-area: b;
}

.bento__c {
  grid-area: c;
}

.bento__d {
  grid-area: d;
}

.calc {
  position: relative;
  padding: 26px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  background: rgba(28, 33, 41, 0.6);
  backdrop-filter: blur(8px);
}

.calc__head {
  margin-bottom: 14px;
  color: var(--c-accent);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.calc__rows {
  display: grid;
  gap: 1px;
  background: var(--c-border);
  border-radius: var(--r-sm);
  overflow: hidden;
}

.calc__rows li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 15px;
  background: rgba(13, 16, 20, 0.9);
  color: var(--c-text-dim);
  font-size: 14px;
}

.calc__rows b {
  color: var(--c-text);
  font-size: 16px;
  white-space: nowrap;
}

.calc__foot {
  margin-top: 12px;
  color: var(--c-text-muted);
  font-size: 13px;
}

.mini {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 22px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  background: rgba(20, 24, 30, 0.66);
  backdrop-filter: blur(8px);
}

.mini__k {
  color: var(--c-text-muted);
  font-size: 13px;
}

.mini__v {
  display: flex;
  align-items: baseline;
  gap: 7px;
  margin-top: 4px;
  color: var(--c-text-muted);
  font-size: 13px;
}

.mini__v b {
  background: var(--g-silver);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: 30px;
}

/* ============================================================
 * 数字竖向翻滚（JS 把每一位拆成一列 0-9 再接目标位）
 * 每列只在 1em 高的窗口里动，整串宽度不变，收尾左位先停右位后停
 * ============================================================ */
.roll {
  display: inline-block;
  height: 1em;
  overflow: hidden;
  vertical-align: bottom;
  /* 数字列用等宽字形，逐位对齐才不会抖 */
  font-variant-numeric: tabular-nums;
}

.roll i {
  display: block;
  font-style: normal;
  line-height: 1;
  transform: translateY(0);
  transition: transform 1150ms cubic-bezier(0.16, 0.84, 0.24, 1);
}

.roll i.is-rolled {
  transform: translateY(var(--y));
}

/* 逗号这类不翻滚的字符，跟着一起基线对齐 */
.roll__s {
  display: inline-block;
  vertical-align: bottom;
}

/* ============================================================
 * 表格
 * ============================================================ */
.tablewrap {
  margin-top: 26px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  background: rgba(13, 16, 20, 0.6);
  /* 窄屏横向滚动，不压字号 */
  overflow-x: auto;
}

.table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 15px;
}

.table__cap {
  padding: 16px 18px;
  color: var(--c-text-muted);
  font-size: 13px;
  text-align: left;
}

.table th,
.table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--c-border);
  text-align: left;
}

.table thead th {
  background: rgba(28, 33, 41, 0.8);
  color: var(--c-text-dim);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.table tbody tr {
  transition: background var(--t-fast);
}

.table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.table tbody td:first-child {
  color: var(--c-silver);
  font-weight: 700;
}

.table tbody tr:last-child td {
  border-bottom: 0;
}

/* ============================================================
 * 合伙人档位（3D 倾斜）
 * ============================================================ */
.tiers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  /* 给子元素的 rotate3d 一个透视，否则倾斜看着是平的 */
  perspective: 1200px;
}

.tier {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px 22px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  background: rgba(28, 33, 41, 0.62);
  backdrop-filter: blur(8px);
  transform-style: preserve-3d;
  transition: transform var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}

/* JS 写入 --rx/--ry，鼠标离开时清零回位 */
.tilt:hover {
  transform: rotate3d(1, 0, 0, var(--rx, 0deg)) rotate3d(0, 1, 0, var(--ry, 0deg))
    translateZ(10px);
  border-color: var(--c-silver-line);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
}

.tier--hot {
  border-color: var(--c-accent-line);
}

.tier--genesis {
  border-color: var(--c-silver-line);
  background: linear-gradient(180deg, rgba(214, 218, 222, 0.09), rgba(28, 33, 41, 0.66) 55%);
}

.tier__flag {
  position: absolute;
  top: -11px;
  left: 22px;
  padding: 2px 11px;
  border-radius: var(--r-pill);
  background: var(--c-accent);
  color: var(--c-text-on-accent);
  font-size: 12px;
  font-weight: 700;
}

.tier--genesis .tier__flag {
  background: var(--g-silver);
  color: #0a0d10;
}

.tier__name {
  color: var(--c-silver);
  font-size: 15px;
  letter-spacing: 0.04em;
}

.tier__price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 6px 0 2px;
}

.tier__price b {
  background: var(--g-silver);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: 33px;
}

.tier__price span {
  color: var(--c-text-muted);
  font-size: 13px;
}

.tier__quota {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-text-muted);
  font-size: 13px;
}

.tier__quota b {
  color: var(--c-accent);
  font-size: 15px;
}

/* ============================================================
 * 通缩轴
 * ============================================================ */
.axis {
  max-width: 860px;
  margin: 0 auto 30px;
  text-align: center;
}

.axis__bar {
  height: 8px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

/* 从右往左收缩，直观表达「只减不增」；进入视口后由 .is-in 触发 */
.axis__fill {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--c-silver), var(--c-accent));
  transform-origin: left center;
  transform: scaleX(1);
  transition: transform 1600ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.axis.is-in .axis__fill {
  transform: scaleX(0.08);
}

.axis__ends {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin-top: 16px;
}

.axis__ends p {
  display: flex;
  flex-direction: column;
  color: var(--c-text-muted);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.axis__ends b {
  color: var(--c-silver);
  font-size: 21px;
  letter-spacing: 0;
  text-transform: none;
}

.axis__arrow {
  color: var(--c-text-muted);
  font-size: 20px;
}

.axis__note {
  max-width: 620px;
  margin: 14px auto 0;
  color: var(--c-text-muted);
  font-size: 14px;
}

/* ============================================================
 * 代币参数
 * ============================================================ */
.specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-bottom: 26px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  background: var(--c-border);
  overflow: hidden;
}

.spec {
  padding: 20px 22px;
  background: rgba(20, 24, 30, 0.8);
}

.spec__k {
  color: var(--c-text-muted);
  font-size: 13px;
}

.spec__v {
  margin-top: 4px;
  color: var(--c-text-dim);
  font-size: 16px;
}

.spec__v b {
  color: var(--c-silver);
  font-size: 19px;
}

/* ============================================================
 * 堆叠分配条
 * ============================================================ */
.stack {
  max-width: 940px;
  margin: 0 auto;
}

.stack__bar {
  display: flex;
  gap: 2px;
  height: 46px;
  border-radius: var(--r-md);
  overflow: hidden;
}

.seg {
  width: var(--w);
  /* 进场时从 0 长出来，用 is-in 触发 */
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 900ms cubic-bezier(0.22, 0.61, 0.36, 1), filter var(--t-fast),
    opacity var(--t-fast);
  background: linear-gradient(180deg, rgba(214, 218, 222, 0.55), rgba(214, 218, 222, 0.16));
}

.stack.is-in .seg {
  transform: scaleX(1);
}

/* 前三段是给用户的奖励，用翠绿区分平台侧支出 */
.seg[data-key="join"],
.seg[data-key="team"],
.seg[data-key="pump"] {
  background: linear-gradient(180deg, var(--c-accent), var(--c-accent-dim));
}

.seg[data-key="ref"],
.seg[data-key="same"],
.seg[data-key="node"] {
  background: linear-gradient(180deg, rgba(163, 230, 53, 0.55), rgba(101, 133, 15, 0.4));
}

.stack.has-hover .seg {
  opacity: 0.32;
}

.stack .seg.is-on {
  opacity: 1;
  filter: brightness(1.25);
}

.stack__hint {
  margin-top: 12px;
  color: var(--c-text-muted);
  font-size: 13px;
  text-align: center;
}

.legend {
  display: grid;
  gap: 1px;
  margin-top: 24px;
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  background: var(--c-border);
  overflow: hidden;
}

.legend li {
  display: grid;
  grid-template-columns: 14px 1fr auto 1.5fr;
  align-items: center;
  gap: 14px;
  padding: 13px 18px;
  background: rgba(13, 16, 20, 0.86);
  transition: background var(--t-fast);
  cursor: default;
}

.legend li:hover,
.legend li.is-on {
  background: rgba(255, 255, 255, 0.045);
}

.legend__c {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: rgba(214, 218, 222, 0.45);
}

.legend li[data-key="join"] .legend__c,
.legend li[data-key="team"] .legend__c,
.legend li[data-key="pump"] .legend__c {
  background: var(--c-accent);
}

.legend li[data-key="ref"] .legend__c,
.legend li[data-key="same"] .legend__c,
.legend li[data-key="node"] .legend__c {
  background: rgba(163, 230, 53, 0.55);
}

.legend__n {
  color: var(--c-text);
  font-size: 15px;
}

.legend b {
  color: var(--c-silver);
  font-size: 16px;
}

.legend em {
  color: var(--c-text-muted);
  font-size: 13px;
  font-style: normal;
  text-align: right;
}

/* ============================================================
 * FAQ
 * ============================================================ */
.faq {
  display: grid;
  gap: 12px;
  max-width: 880px;
  margin: 0 auto;
}

.qa {
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  background: rgba(28, 33, 41, 0.55);
  backdrop-filter: blur(6px);
  overflow: hidden;
  transition: border-color var(--t-fast);
}

.qa[open] {
  border-color: var(--c-silver-line);
}

.qa summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
  color: var(--c-text);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  /* 去掉默认三角，自己画一个可旋转的加号 */
  list-style: none;
}

.qa summary::-webkit-details-marker {
  display: none;
}

.qa summary::after {
  content: "+";
  flex: none;
  color: var(--c-accent);
  font-size: 21px;
  font-weight: 400;
  transition: transform var(--t-base);
}

.qa[open] summary::after {
  transform: rotate(135deg);
}

.qa p {
  padding: 0 20px 18px;
  color: var(--c-text-dim);
  font-size: 15px;
}

/* ============================================================
 * 底部 CTA 与页脚
 * ============================================================ */
.cta {
  padding: 92px 0;
  border-top: 1px solid var(--c-border);
  background: radial-gradient(70% 100% at 50% 0%, rgba(163, 230, 53, 0.07) 0%, transparent 70%);
  text-align: center;
}

.cta__title {
  font-size: clamp(25px, 3vw, 35px);
}

.cta__desc {
  margin-top: 12px;
  color: var(--c-text-dim);
}

.cta .hero__ops {
  justify-content: center;
}

.foot {
  padding: 42px 0 48px;
  background: rgba(13, 16, 20, 0.8);
  border-top: 1px solid var(--c-border);
}

.foot__inner {
  display: grid;
  gap: 16px;
  text-align: center;
}

.foot__brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--c-silver);
  font-size: 15px;
  letter-spacing: 0.05em;
}

.foot__risk {
  max-width: 840px;
  margin: 0 auto;
  color: var(--c-text-muted);
  font-size: 13px;
  line-height: 1.8;
}

.foot__copy {
  color: var(--c-text-muted);
  font-size: 13px;
}

/* ============================================================
 * 入场：淡入上移，同组按 data-d 依次延迟
 * ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 620ms cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 620ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

.reveal[data-d="1"] {
  transition-delay: 90ms;
}

.reveal[data-d="2"] {
  transition-delay: 180ms;
}

.reveal[data-d="3"] {
  transition-delay: 270ms;
}

.reveal[data-d="4"] {
  transition-delay: 360ms;
}

/* 跟随系统设置关掉动效：内容全部直出，只保留静态样式 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .bg__flow,
  .orb__ring,
  .orb__ring--2,
  .orb__core,
  .orb__sweep,
  .sheen,
  .dot,
  .seat--win {
    animation: none;
  }

  .axis.is-in .axis__fill {
    transition: none;
  }

  .seg {
    transform: scaleX(1);
    transition: none;
  }

  .btn:hover,
  .tilt:hover {
    transform: none;
  }
}

/* ============================================================
 * 响应式
 * ============================================================ */
@media (max-width: 960px) {
  :root {
    --pad: 18px;
    --nav-h: 62px;
  }

  .burger {
    display: block;
  }

  /* 导航收进抽屉 */
  .nav__links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 8px 18px 20px;
    background: rgba(5, 7, 10, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--c-border);
    transform: translateY(-150%);
    transition: transform var(--t-base);
  }

  .nav__links.is-open {
    transform: none;
  }

  .nav__links a {
    padding: 13px 4px;
    border-bottom: 1px solid var(--c-border);
    font-size: 16px;
  }

  .nav__links a::after {
    display: none;
  }

  .hero {
    padding: calc(var(--nav-h) + 52px) 0 64px;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__desc,
  .hero__note {
    max-width: none;
  }

  .hero__art {
    order: -1;
  }

  .orb {
    width: min(320px, 66vw);
  }

  .flow {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  /* 窄屏不吸顶：sticky 左列会一直占半屏 */
  .flow__side {
    position: static;
  }

  .flow__dots {
    display: none;
  }

  .sec {
    padding: 70px 0;
  }

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

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

  .bento {
    grid-template-columns: repeat(2, 1fr);
    grid-template-areas:
      "a a"
      "b b"
      "c d";
  }

  .legend li {
    grid-template-columns: 12px 1fr auto;
  }

  /* 窄屏隐藏第四列说明，避免每行折成三行 */
  .legend em {
    display: none;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .brand__sub {
    display: none;
  }

  /* 窄屏隐藏顶部按钮：首屏已有两个大按钮，重复挤压空间 */
  .nav__ops .btn {
    display: none;
  }

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

  .trio,
  .duo,
  .tiers,
  .specs {
    grid-template-columns: 1fr;
  }

  .bento {
    grid-template-columns: 1fr;
    grid-template-areas:
      "a"
      "b"
      "c"
      "d";
  }

  .hero__ops .btn {
    width: 100%;
  }

  .sec__head {
    margin-bottom: 34px;
  }

  .fstep,
  .card,
  .calc {
    padding: 22px 18px;
  }

  .seats {
    gap: 5px;
  }

  .seat {
    height: 26px;
  }

  .axis__ends {
    gap: 14px;
  }

  .axis__ends b {
    font-size: 17px;
  }

  .stack__bar {
    height: 38px;
  }
}