/* =========================================================
   沛诺科技官网 · 样式系统
   设计原则：只用 transform / opacity 做动效；大面积极少用 filter/backdrop-filter
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --bg: #07080d;
  --bg-1: #0a0c14;
  --bg-2: #10131d;
  --amber: #f8a53c;
  --amber-2: #ff8a3d;
  --amber-3: #ffd08a;
  --amber-soft: rgba(248, 165, 60, 0.12);
  --amber-line: rgba(248, 165, 60, 0.28);

  --text: #eef1f7;
  --dim: #a6b0c3;
  --mute: #6d7889;

  --line: rgba(255, 255, 255, 0.075);
  --line-2: rgba(255, 255, 255, 0.14);
  --surface: rgba(255, 255, 255, 0.026);
  --surface-2: rgba(255, 255, 255, 0.05);

  --r-xl: 26px;
  --r-lg: 20px;
  --r: 14px;
  --r-sm: 10px;

  --pad: clamp(18px, 4vw, 40px);
  --maxw: 1240px;
  --nav-h: 68px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --shadow: 0 30px 60px -34px rgba(0, 0, 0, 0.95);
  --font: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

/* ---------- 2. 基础 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 静态背景层：只在首次绘制时画一次，滚动/动画期间零成本 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(1100px 620px at 50% -8%, rgba(248, 165, 60, 0.14), transparent 68%),
    radial-gradient(900px 700px at 92% 12%, rgba(72, 118, 220, 0.08), transparent 70%),
    radial-gradient(1200px 800px at 8% 96%, rgba(248, 138, 61, 0.06), transparent 72%),
    var(--bg);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; }

::selection { background: rgba(248, 165, 60, 0.28); }

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

/* 星空画布：固定层，由 JS 按需驱动 */
#stars {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* ---------- 3. 布局工具 ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
}

section { position: relative; }

.sec {
  padding-block: clamp(64px, 9vw, 130px);
  scroll-margin-top: calc(var(--nav-h) + 8px);
}

/* 区块标题 */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--amber);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 12px var(--amber);
}

.sec-head { max-width: 760px; margin-inline: auto; text-align: center; }

h1, h2, h3, h4 { margin: 0; line-height: 1.18; letter-spacing: -0.01em; text-wrap: balance; }
h1 { font-size: clamp(38px, 6.4vw, 76px); font-weight: 800; }
h2 { font-size: clamp(30px, 4.4vw, 52px); font-weight: 800; }
h3 { font-size: 20px; font-weight: 700; }
h4 { font-size: 17px; font-weight: 700; }
p { margin: 0; }

.sec-head h2 + p,
.lede {
  margin-top: 18px;
  color: var(--dim);
  font-size: clamp(15px, 1.4vw, 17px);
  text-wrap: pretty;
}

.muted { color: var(--dim); }
.mute { color: var(--mute); }

.grad {
  background: linear-gradient(100deg, var(--amber-3), var(--amber) 45%, var(--amber-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 4. 按钮 ---------- */
.btn {
  --btn-bg: transparent;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--btn-bg);
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease),
    background-color 0.25s var(--ease), color 0.25s var(--ease);
}
.btn:hover { transform: translateY(-2px); border-color: rgba(255, 255, 255, 0.3); }
.btn:active { transform: translateY(0); }

.btn--primary {
  --btn-bg: linear-gradient(100deg, var(--amber), var(--amber-2));
  border-color: transparent;
  color: #24160a;
  font-weight: 700;
  box-shadow: 0 14px 34px -16px rgba(248, 165, 60, 0.7);
}
.btn--primary:hover { border-color: transparent; }

.btn--ghost { --btn-bg: rgba(255, 255, 255, 0.04); }

.btn--sm { padding: 9px 18px; font-size: 14px; }

.link-amber {
  color: var(--amber);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.link-amber span { transition: transform 0.25s var(--ease); }
.link-amber:hover span { transform: translateX(4px); }

/* ---------- 5. 导航 ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 60;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(7, 8, 13, 0.62);
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.nav.is-scrolled {
  background: rgba(7, 8, 13, 0.94);
  border-bottom-color: var(--line);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: 20px;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 0.02em; }
.brand__mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(140deg, var(--amber), var(--amber-2));
  display: grid;
  place-items: center;
  color: #1b1206;
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 8px 22px -10px rgba(248, 165, 60, 0.9);
}
.brand__text small { display: block; font-size: 10px; font-weight: 500; letter-spacing: 0.22em; color: var(--mute); }

.nav__links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav__links a {
  position: relative;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--dim);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.nav__links a:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.nav__links a.is-active { color: var(--text); }
.nav__links a.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  transform: translateX(-50%);
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber);
}
.nav__cta { margin-left: 8px; }

.burger {
  position: relative;
  display: none;
  width: 40px;
  height: 40px;
  margin-left: auto;
  border-radius: 10px;
  border: 1px solid var(--line);
}
.burger span {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 17px;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform 0.28s var(--ease), opacity 0.2s var(--ease);
}
.burger span:nth-child(1) { transform: translate(-50%, calc(-50% - 5.5px)); }
.burger span:nth-child(3) { transform: translate(-50%, calc(-50% + 5.5px)); }
.burger.is-open span:nth-child(1) { transform: translate(-50%, -50%) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translate(-50%, -50%) rotate(-45deg); }

.drawer {
  position: fixed;
  inset: var(--nav-h) 0 auto;
  z-index: 55;
  padding: 10px var(--pad) 24px;
  background: rgba(8, 9, 15, 0.98);
  border-bottom: 1px solid var(--line);
  /* 位移必须大于自身高度 + 导航高度，并配合 visibility，避免底边穿帮 */
  visibility: hidden;
  transform: translateY(calc(-100% - var(--nav-h) - 4px));
  transition: transform 0.34s var(--ease), visibility 0.34s linear;
  will-change: transform;
}
.drawer.is-open { visibility: visible; transform: translateY(0); }
.drawer a {
  display: block;
  padding: 14px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 17px;
}
.drawer .btn { width: 100%; margin-top: 18px; }

/* 滚动进度条 */
.progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 70;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--amber), var(--amber-3));
  will-change: transform;
}

/* ---------- 6. 首屏 ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: calc(var(--nav-h) + 7vh);
  padding-bottom: 90px;
  overflow: hidden;
  text-align: center;
}

/* 万花筒光刃：静态一次性绘制，不参与动画 */
.iris {
  position: absolute;
  left: 50%;
  top: 42%;
  width: min(1500px, 130vw);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  pointer-events: none;
  background:
    repeating-conic-gradient(from 6deg at 50% 50%, rgba(248, 165, 60, 0.075) 0 2.6deg, transparent 2.6deg 11deg),
    repeating-conic-gradient(from 19deg at 50% 50%, rgba(110, 160, 255, 0.05) 0 1.5deg, transparent 1.5deg 17deg);
  -webkit-mask-image: radial-gradient(closest-side at 50% 50%, #000 2%, rgba(0, 0, 0, 0.55) 42%, transparent 76%);
  mask-image: radial-gradient(closest-side at 50% 50%, #000 2%, rgba(0, 0, 0, 0.55) 42%, transparent 76%);
}

.hero__glow {
  position: absolute;
  left: 50%;
  top: 40%;
  width: min(940px, 92vw);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  pointer-events: none;
  background: radial-gradient(circle, rgba(248, 165, 60, 0.17), rgba(248, 165, 60, 0) 62%);
}

/* 两枚缓慢漂浮的光点（小尺寸元素，只做 transform 动画） */
.orb {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(255, 172, 74, 0.34), rgba(255, 172, 74, 0) 70%);
  will-change: transform;
  animation: float 16s ease-in-out infinite;
}
.orb--a { left: 6%; top: 28%; }
.orb--b { right: 4%; top: 52%; width: 220px; height: 220px; background: radial-gradient(circle, rgba(120, 165, 255, 0.24), rgba(120, 165, 255, 0) 70%); animation-duration: 21s; animation-delay: -6s; }

@keyframes float {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -34px, 0); }
}

.hero__inner { position: relative; z-index: 1; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 16px 7px 12px;
  border: 1px solid var(--amber-line);
  border-radius: 999px;
  background: rgba(248, 165, 60, 0.08);
  color: var(--amber-3);
  font-size: 14px;
  font-weight: 600;
}
.badge svg { width: 15px; height: 15px; }

.hero h1 { margin-top: 26px; }
.hero h1 .line { display: block; }
.hero h1 .line--soft {
  background: linear-gradient(100deg, #ffffff, #b9c3d6 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__sub {
  max-width: 720px;
  margin: 24px auto 0;
  color: var(--dim);
  font-size: clamp(15px, 1.5vw, 18px);
  text-wrap: pretty;
}

.hero__trust {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 6px 9px;
  max-width: 100%;
  margin-top: 22px;
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--dim);
  font-size: 14px;
}
.hero__trust b { color: var(--amber-3); font-weight: 600; }
.hero__trust span { text-wrap: pretty; }

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 34px;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 34px;
  justify-content: center;
  margin-top: 46px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  list-style: none;
}
.hero__stats li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--dim);
  font-size: 14px;
}
.hero__stats li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--amber);
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: 6px;
  color: var(--mute);
  font-size: 12px;
  letter-spacing: 0.16em;
}
.scroll-cue i {
  width: 1px;
  height: 30px;
  background: linear-gradient(to bottom, var(--amber), transparent);
  animation: cue 2.4s ease-in-out infinite;
}
@keyframes cue {
  0%, 100% { transform: scaleY(0.45); opacity: 0.5; }
  50% { transform: scaleY(1); opacity: 1; }
}

/* ---------- 7. 卡片 ---------- */
.card {
  position: relative;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012));
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.card:hover { transform: translateY(-4px); border-color: var(--line-2); }

/* 指针聚光：由 JS 写入 --mx/--my，纯 opacity 过渡 */
.card--spot { position: relative; }
.card--spot::before {
  content: "";
  position: absolute;
  inset: -1px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  background: radial-gradient(
    340px circle at var(--mx, 50%) var(--my, 0%),
    rgba(248, 165, 60, 0.14),
    transparent 62%
  );
}
.card--spot:hover::before { opacity: 1; }
.card--spot > * { position: relative; }

.icon-chip {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: var(--amber);
  background: var(--amber-soft);
  border: 1px solid var(--amber-line);
}
.icon-chip svg { width: 20px; height: 20px; }

/* 特征列表 */
.ticks { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.ticks li {
  position: relative;
  padding-left: 26px;
  color: var(--dim);
  font-size: 14.5px;
}
.ticks li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 11px;
  height: 6px;
  border-left: 1.8px solid var(--amber);
  border-bottom: 1.8px solid var(--amber);
  transform: rotate(-45deg);
}
.ticks--dot li::before {
  width: 5px;
  height: 5px;
  border: 0;
  border-radius: 50%;
  background: var(--amber);
  top: 10px;
  transform: none;
}
.ticks--sm li { font-size: 13.5px; }
.ticks b { color: var(--text); font-weight: 600; }

/* ---------- 8. 痛点 ---------- */
.pain-grid { display: grid; gap: 20px; grid-template-columns: repeat(2, 1fr); margin-top: 52px; }

.pain {
  display: grid;
  gap: 14px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.032), rgba(255, 255, 255, 0.01));
}
.pain--warn { border-color: rgba(255, 120, 90, 0.22); }
.pain--warn .icon-chip { color: #ff9b7a; background: rgba(255, 120, 90, 0.1); border-color: rgba(255, 120, 90, 0.28); }
.pain--good { border-color: var(--amber-line); background: linear-gradient(180deg, rgba(248, 165, 60, 0.09), rgba(248, 165, 60, 0.02)); }
.pain--wide { grid-column: 1 / -1; }
@media (min-width: 861px) {
  .pain--wide .ticks { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
}
.pain h3 { font-size: 22px; }
.pain .kicker { font-size: 14px; font-weight: 600; color: #ff9b7a; }
.pain--good .kicker { color: var(--amber); }
.pain dl { margin: 0; display: grid; gap: 14px; }
.pain dt { font-size: 15px; font-weight: 600; color: var(--text); }
.pain dd { margin: 3px 0 0; color: var(--dim); font-size: 14px; }
.pain__foot { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 4px; }

/* ---------- 9. 产品矩阵 ---------- */
.plans {
  display: grid;
  gap: 16px;
  margin-top: 56px;
  grid-template-columns: repeat(auto-fit, minmax(228px, 1fr));
}

.plan {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.034), rgba(255, 255, 255, 0.01));
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.plan:hover { transform: translateY(-5px); border-color: var(--line-2); }

.plan--hot {
  padding-top: 46px;
  border-color: var(--amber-line);
  background: linear-gradient(180deg, rgba(248, 165, 60, 0.1), rgba(248, 165, 60, 0.02));
}
.plan--hot:hover { border-color: rgba(248, 165, 60, 0.5); }

.plan__flag {
  position: absolute;
  inset: 0 0 auto;
  padding: 7px 16px;
  background: linear-gradient(100deg, var(--amber), var(--amber-2));
  color: #24160a;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-align: center;
}

.plan__tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  align-self: flex-start;
  padding: 5px 12px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--dim);
}
.plan--hot .plan__tag { color: var(--amber-3); border-color: var(--amber-line); background: rgba(248, 165, 60, 0.1); }

.plan h3 { font-size: 20px; }
.plan__for { color: var(--mute); font-size: 13.5px; }
.plan__label { color: var(--amber); font-size: 12.5px; font-weight: 600; letter-spacing: 0.06em; margin-bottom: -8px; }
.plan hr { width: 100%; height: 1px; border: 0; background: var(--line); margin: 2px 0; }
.plan .ticks { flex: 1; }
.plan__more { align-self: flex-start; }

.plan__scene {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: rgba(255, 255, 255, 0.02);
  color: var(--dim);
  font-size: 13px;
}
.plan__scene b { display: block; color: var(--text); font-size: 12.5px; font-weight: 600; margin-bottom: 4px; }

.tags { display: flex; flex-wrap: wrap; gap: 7px; list-style: none; margin: 0; padding: 0; }
.tags li {
  padding: 4px 10px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--mute);
  font-size: 12px;
}

.note-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
  padding: 12px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--dim);
  font-size: 14px;
  text-align: center;
}
.note-bar b { color: var(--amber-3); font-weight: 600; }

/* ---------- 10. 插件 ---------- */
.plugins { display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); margin-top: 52px; }
.plug { padding: 26px 24px; display: grid; gap: 18px; align-content: start; }
.plug__head { display: flex; align-items: center; gap: 13px; }
.plug__head h3 { font-size: 18px; }
.plug__list { list-style: none; margin: 0; padding: 0; }
.plug__list li { padding: 14px 0; border-top: 1px solid var(--line); }
.plug__list li:first-child { border-top: 0; padding-top: 0; }
.plug__list li:last-child { padding-bottom: 0; }
.plug__name { display: block; color: var(--text); font-size: 15px; font-weight: 600; }
.plug__sub { display: block; color: var(--mute); font-size: 13px; margin-top: 5px; line-height: 1.65; }

/* ---------- 11. 三大优势 / 核心理念 ---------- */
.pillars { display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); margin-top: 52px; }
.pillar { padding: 30px 28px; display: grid; gap: 18px; align-content: start; }
.pillar h3 { font-size: 21px; }
.pillar .kicker { color: var(--amber-3); font-size: 14px; font-weight: 600; }
.pillar p { color: var(--dim); font-size: 14.5px; }

/* ---------- 12. 交付优势 ---------- */
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.stat {
  padding: 16px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: rgba(255, 255, 255, 0.03);
  text-align: center;
}
.stat .num {
  display: block;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(100deg, var(--amber-3), var(--amber-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat .lbl { color: var(--mute); font-size: 12.5px; }
.stat--wide { grid-column: 1 / -1; }

.callout {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  border: 1px solid var(--amber-line);
  border-radius: var(--r);
  background: rgba(248, 165, 60, 0.08);
  color: var(--amber-3);
  font-size: 14px;
  font-weight: 600;
}

/* ---------- 13. 运维三档 ---------- */
.tiers { display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); margin-top: 52px; }
.tier { padding: 28px 26px; display: grid; gap: 16px; align-content: start; }
.tier--hot { border-color: var(--amber-line); background: linear-gradient(180deg, rgba(248, 165, 60, 0.085), rgba(248, 165, 60, 0.015)); }
.tier h3 { font-size: 19px; }
.tier .kicker { color: var(--mute); font-size: 13px; }

/* 小圆点脉冲（导航活动入口等复用） */
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.35; transform: scale(0.8); } }

/* ---------- 15. 联系 ---------- */
.contact { display: grid; gap: 22px; grid-template-columns: 1.15fr 0.85fr; margin-top: 52px; }
.form { padding: 30px; display: grid; gap: 16px; align-content: start; }
.form__row { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
.field { display: grid; gap: 7px; }
.field label { color: var(--dim); font-size: 13.5px; }
.field label i { color: var(--amber); font-style: normal; }
.field input, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font-size: 15px;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.field input::placeholder, .field textarea::placeholder { color: #55606f; }
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--amber-line);
  background: rgba(248, 165, 60, 0.05);
}
.field textarea { resize: vertical; min-height: 116px; }
.field.is-bad input, .field.is-bad textarea { border-color: rgba(255, 110, 90, 0.6); }
.field .err { color: #ff9b7a; font-size: 12.5px; min-height: 0; }
.form__foot { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.form__foot .hint { color: var(--mute); font-size: 12.5px; }

.info { display: grid; gap: 14px; align-content: start; }
.info__item { display: flex; gap: 14px; padding: 20px; align-items: flex-start; }
.info__item b { display: block; font-size: 13px; color: var(--mute); font-weight: 500; }
.info__item span { font-size: 15.5px; font-weight: 600; }
.copy { margin-left: auto; color: var(--mute); font-size: 12.5px; padding: 5px 10px; border: 1px solid var(--line); border-radius: 8px; }
.copy:hover { color: var(--amber-3); border-color: var(--amber-line); }

.promise { padding: 22px; display: grid; gap: 10px; border-color: var(--amber-line); background: linear-gradient(180deg, rgba(248, 165, 60, 0.08), rgba(248, 165, 60, 0.015)); }
.promise h4 { color: var(--amber-3); font-size: 15px; }
.promise p { color: var(--dim); font-size: 13.5px; }
.promise ul { margin: 0; padding-left: 18px; color: var(--dim); font-size: 13.5px; }
.promise li { margin: 4px 0; }

/* ---------- 16. FAQ ---------- */
.faq-list { max-width: 860px; margin: 46px auto 0; display: grid; gap: 12px; }
.faq {
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--surface);
  overflow: hidden;
  transition: border-color 0.25s var(--ease);
}
.faq[open] { border-color: var(--amber-line); }
.faq summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  width: 10px;
  height: 10px;
  margin-left: auto;
  border-right: 1.6px solid var(--amber);
  border-bottom: 1.6px solid var(--amber);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.25s var(--ease);
  flex: none;
}
.faq[open] summary::after { transform: rotate(225deg) translate(-2px, -2px); }
.faq__body { padding: 0 22px 20px; color: var(--dim); font-size: 14.5px; }

/* ---------- 17. 页脚 ---------- */
.footer { border-top: 1px solid var(--line); background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent); margin-top: 40px; }
.footer__inner { display: grid; gap: 30px; grid-template-columns: 1.4fr 1fr 1fr 1fr; padding-block: 54px 30px; }
.footer__brand p { color: var(--mute); font-size: 13.5px; margin-top: 12px; max-width: 280px; }
.footer h4 { font-size: 13px; color: var(--text); letter-spacing: 0.06em; margin-bottom: 14px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer ul a, .footer ul button { color: var(--mute); font-size: 13.5px; text-align: left; padding: 0; transition: color 0.2s var(--ease); }
.footer ul a:hover, .footer ul button:hover { color: var(--amber-3); }
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: center;
  justify-content: space-between;
  padding-block: 20px 26px;
  border-top: 1px solid var(--line);
  color: var(--mute);
  font-size: 12.5px;
}

/* ---------- 18. 弹窗 ---------- */
.modal { position: fixed; inset: 0; z-index: 90; display: grid; place-items: center; padding: 18px; }
.modal[hidden] { display: none; }
.modal__bg { position: absolute; inset: 0; background: rgba(4, 5, 9, 0.76); opacity: 0; transition: opacity 0.3s var(--ease); }
.modal__panel {
  position: relative;
  width: min(760px, 100%);
  max-height: 86vh;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 34px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-xl);
  background: linear-gradient(180deg, #12141d, #0b0d14);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(14px) scale(0.985);
  transition: opacity 0.3s var(--ease), transform 0.34s var(--ease);
}
.modal.is-open .modal__bg { opacity: 1; }
.modal.is-open .modal__panel { opacity: 1; transform: none; }
.modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--dim);
  font-size: 18px;
  line-height: 1;
}
.modal__close:hover { color: var(--text); border-color: var(--line-2); }
body.no-scroll { overflow: hidden; }

/* 弹窗内部结构 */
.detail { display: grid; gap: 22px; }
.detail__head { display: grid; gap: 12px; }
.detail__head .muted { font-size: 14.5px; }
.detail__block { padding: 20px; border: 1px solid var(--line); border-radius: var(--r); background: rgba(255, 255, 255, 0.02); }
.detail__block h4 { color: var(--amber-3); font-size: 14px; letter-spacing: 0.05em; margin-bottom: 13px; }
.detail__block + .detail__block { margin-top: 0; }
.detail__warn { border-color: rgba(255, 120, 90, 0.28); color: var(--dim); font-size: 14px; }
.detail__warn h4 { color: #ff9b7a; }
.detail__cols { display: grid; gap: 18px; grid-template-columns: 1fr 1fr; }

/* ---------- 19. 提示条 / 返回顶部 ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  z-index: 95;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border: 1px solid var(--amber-line);
  border-radius: 999px;
  background: rgba(18, 16, 12, 0.96);
  color: var(--amber-3);
  font-size: 14px;
  font-weight: 600;
  transform: translate(-50%, 22px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.32s var(--ease), opacity 0.32s var(--ease);
}
.toast.is-show { transform: translate(-50%, 0); opacity: 1; }

.to-top {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 65;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  background: rgba(12, 14, 20, 0.9);
  color: var(--dim);
  transform: translateY(16px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), color 0.2s var(--ease);
}
.to-top.is-show { transform: none; opacity: 1; pointer-events: auto; }
.to-top:hover { color: var(--amber); }

/* ---------- 20. 滚动揭示 ---------- */
html.js .reveal {
  opacity: 0;
  transform: translate3d(0, 22px, 0);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
  transition-delay: var(--d, 0ms);
  will-change: opacity, transform;
}
html.js .reveal.is-in { opacity: 1; transform: none; will-change: auto; }

/* 3D 倾斜（仅指针设备启用） */
.tilt { transform-style: preserve-3d; }
@media (hover: hover) and (pointer: fine) {
  .tilt.is-tilting {
    transition: transform 0.12s linear;
    transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(-5px);
  }
}

/* ---------- 21. 子页 ---------- */
.page-hero { padding-top: calc(var(--nav-h) + 74px); padding-bottom: 20px; }
.page-hero h1 { font-size: clamp(32px, 4.6vw, 56px); }
.page-hero .lede { max-width: 720px; margin-top: 18px; }
.back-link { display: flex; width: fit-content; align-items: center; gap: 8px; color: var(--mute); font-size: 14px; margin-bottom: 22px; }
.back-link:hover { color: var(--amber-3); }
.grid-2 { display: grid; gap: 20px; grid-template-columns: repeat(2, 1fr); margin-top: 46px; }
.grid-3 { display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); margin-top: 46px; }
.risk { padding: 26px; display: grid; gap: 12px; align-content: start; }
.risk h3 { font-size: 18px; }
.risk p { color: var(--dim); font-size: 14.5px; }
.risk__no { color: #ff9b7a; font-size: 13px; font-weight: 600; letter-spacing: 0.06em; }
.cta-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 46px;
  padding: 30px 34px;
  border: 1px solid var(--amber-line);
  border-radius: var(--r-lg);
  background: linear-gradient(140deg, rgba(248, 165, 60, 0.12), rgba(248, 165, 60, 0.02));
}
.cta-strip h3 { font-size: 22px; }
.cta-strip p { color: var(--dim); font-size: 14.5px; margin-top: 8px; }

/* ---------- 22. 响应式 ---------- */
@media (max-width: 1080px) {
  .plugins, .pillars, .tiers { grid-template-columns: 1fr 1fr; }
  .contact { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .nav__links, .nav__cta { display: none; }
  .burger { display: grid; }
  .pain-grid { grid-template-columns: 1fr; }
  .plugins, .pillars, .tiers, .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .form__row, .detail__cols { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: calc(var(--nav-h) + 54px); padding-bottom: 74px; }
  .hero__stats { gap: 10px 20px; }
  .plan { padding: 22px 18px; }
  .to-top { right: 14px; bottom: 16px; }
}

@media (max-width: 520px) {
  body { font-size: 15.5px; }
  .card, .pain, .pillar, .tier, .form, .plan { padding-inline: 20px; }
  .modal__panel { padding: 26px 20px; }
  .hero__cta .btn { width: 100%; }
  .footer__inner { grid-template-columns: 1fr; }
}

/* ---------- 23. 减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  html.js .reveal { opacity: 1; transform: none; }
  #stars { display: none; }
}

/* ---------- 24. 交互增强（全部只改 transform / opacity） ---------- */

/* 光标光晕：跟随指针的小尺寸柔光层 */
.cursor-glow {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1;
  width: 340px;
  height: 340px;
  margin: -170px 0 0 -170px;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(circle, rgba(248, 165, 60, 0.085), rgba(248, 165, 60, 0) 62%);
  transition: opacity 0.5s var(--ease), transform 0.16s ease-out;
  will-change: transform;
}
.cursor-glow.is-on { opacity: 1; }

/* 导航活动入口 */
.nav__promo {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-left: 10px;
  padding: 7px 14px;
  border: 1px solid var(--amber-line);
  border-radius: 999px;
  background: rgba(248, 165, 60, 0.09);
  color: var(--amber-3);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: background-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.nav__promo i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber);
  animation: pulse 2.2s ease-in-out infinite;
}
.nav__promo:hover { background: rgba(248, 165, 60, 0.18); transform: translateY(-1px); }

/* 导航悬停滑动指示器 */
.nav__links { position: relative; }
.nav__pill {
  position: absolute;
  top: 50%;
  left: 0;
  width: 0;
  height: 32px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%) translateX(0);
  transition: transform 0.3s var(--ease), width 0.3s var(--ease), opacity 0.2s var(--ease);
}

/* 按钮涟漪 */
.btn { overflow: hidden; }
.ripple {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  background: rgba(255, 255, 255, 0.34);
  transform: translate(-50%, -50%) scale(0);
  animation: ripple 0.6s ease-out forwards;
}
.btn--primary .ripple { background: rgba(255, 255, 255, 0.5); }
@keyframes ripple {
  to { transform: translate(-50%, -50%) scale(1); opacity: 0; }
}

/* 磁吸按钮：由 JS 写入 transform */
.is-magnetic { will-change: transform; }

/* 卡片底部按钮的微交互 */
.plan:hover .plan__more { border-color: var(--amber-line); color: var(--amber-3); }

/* 悬浮活动入口 */
.promo-float {
  position: fixed;
  left: 22px;
  bottom: 26px;
  z-index: 64;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px 11px 16px;
  border: 1px solid var(--amber-line);
  border-radius: 999px;
  background: rgba(22, 17, 11, 0.94);
  color: var(--text);
  font-size: 14px;
  transform: translateY(14px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.34s var(--ease), opacity 0.34s var(--ease), background-color 0.25s var(--ease);
}
.promo-float.is-show { transform: none; opacity: 1; pointer-events: auto; }
.promo-float:hover { background: rgba(34, 25, 14, 0.98); }
.promo-float b { color: var(--amber); }
.promo-float__short { display: none; }
.promo-float__cta {
  padding: 6px 14px;
  border-radius: 999px;
  background: linear-gradient(100deg, var(--amber), var(--amber-2));
  color: #24160a;
  font-weight: 700;
  font-size: 13.5px;
  white-space: nowrap;
}
.promo-float__close {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--mute);
  font-size: 12px;
  line-height: 1;
}
.promo-float__close:hover { color: var(--text); background: rgba(255, 255, 255, 0.08); }

/* ---------- 25. 活动页 ---------- */
.quota { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 14px; justify-content: center; margin-top: 34px; }
.quota .num {
  font-size: clamp(54px, 11vw, 96px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  background: linear-gradient(100deg, var(--amber-3), var(--amber-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.quota .unit { color: var(--dim); font-size: 16px; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 46px; }
.step {
  position: relative;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.034), rgba(255, 255, 255, 0.01));
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.step:hover { transform: translateY(-4px); border-color: var(--amber-line); }
.step__no {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--amber-soft);
  border: 1px solid var(--amber-line);
  color: var(--amber-3);
  font-size: 14px;
  font-weight: 700;
}
.step h3 { font-size: 17px; margin-top: 15px; }
.step p { color: var(--dim); font-size: 13.5px; margin-top: 8px; }
.step__line {
  position: absolute;
  right: -16px;
  top: 40px;
  width: 16px;
  height: 1px;
  background: linear-gradient(90deg, var(--amber-line), transparent);
}
.step:last-child .step__line { display: none; }

.partners { display: grid; grid-template-columns: repeat(auto-fit, minmax(246px, 1fr)); gap: 14px; margin-top: 42px; }
.partner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: rgba(255, 255, 255, 0.024);
  color: var(--text);
  font-size: 14.5px;
  font-weight: 500;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}
.partner:hover { transform: translateY(-3px); border-color: var(--amber-line); background: rgba(248, 165, 60, 0.06); }
.partner__mark {
  flex: none;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  border: 1px solid var(--amber-line);
  background: linear-gradient(140deg, rgba(248, 165, 60, 0.22), rgba(248, 165, 60, 0.05));
  color: var(--amber-3);
  font-size: 13px;
  font-weight: 700;
}

/* 预约成功弹窗内容 */
.success { display: grid; gap: 16px; justify-items: center; text-align: center; padding: 8px 0 4px; }
.success__badge { position: relative; width: 88px; height: 88px; display: grid; place-items: center; }
.success__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--amber-line);
  animation: ringOut 2.6s ease-out infinite;
}
.success__ring:nth-child(2) { animation-delay: 1.3s; }
@keyframes ringOut {
  0% { transform: scale(0.68); opacity: 0.9; }
  100% { transform: scale(1.4); opacity: 0; }
}
.success__circle {
  width: 66px;
  height: 66px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--amber-line);
  background: var(--amber-soft);
  color: var(--amber);
  box-shadow: 0 0 34px -10px rgba(248, 165, 60, 0.7);
}
.success__circle svg { width: 30px; height: 30px; }
.success__circle path {
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  animation: draw 0.55s 0.15s var(--ease) forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }
.success h3 { font-size: 24px; }
.success > p { color: var(--dim); font-size: 15px; max-width: 460px; }
.success__meta {
  width: 100%;
  display: grid;
  gap: 9px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: rgba(255, 255, 255, 0.02);
  text-align: left;
  font-size: 13.5px;
  color: var(--dim);
}
.success__meta b { color: var(--text); font-weight: 600; }
.success__actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 2px; }

@media (max-width: 1080px) {
  .steps { grid-template-columns: 1fr 1fr; }
  .step__line { display: none; }
}
@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr; }
  .nav__promo { display: none; }
}
@media (max-width: 520px) {
  .promo-float { left: 14px; bottom: 16px; padding: 9px 10px 9px 13px; font-size: 13px; }
  .promo-float__text { display: none; }
  .promo-float__short { display: inline; }
  .success__actions .btn { width: 100%; }
}

/* ---------- 26. 动画增强（标题遮罩揭示 / 列表批次入场 / 扫光等，只改 transform / opacity / clip-path） ---------- */

/* 导航入场 */
@keyframes navIn {
  from { transform: translateY(-14px); opacity: 0; }
  to { transform: none; opacity: 1; }
}
.nav { animation: navIn 0.6s var(--ease); }

/* 首屏万花筒缓慢自转：只在首屏可见时运行，滚出视口自动暂停 */
html.js .iris { animation: irisSpin 180s linear infinite; animation-play-state: paused; }
html.js .hero.in-view .iris { animation-play-state: running; }
@keyframes irisSpin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 首屏光晕呼吸 */
html.js .hero__glow { animation: glowBreathe 9s ease-in-out infinite; animation-play-state: paused; }
html.js .hero.in-view .hero__glow { animation-play-state: running; }
@keyframes glowBreathe {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.72; }
  50% { transform: translate(-50%, -50%) scale(1.07); opacity: 1; }
}

/* 漂浮光点与滚动提示同样只在首屏可见时运行 */
html.js .orb,
html.js .scroll-cue i { animation-play-state: paused; }
html.js .hero.in-view .orb,
html.js .hero.in-view .scroll-cue i { animation-play-state: running; }

/* 区块标题前的亮点呼吸 */
.eyebrow::before { animation: dotPulse 3.2s ease-in-out infinite; }
@keyframes dotPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

/* 大标题遮罩揭示：从下往上浮现 */
html.js .hero h1 .line.reveal,
html.js .hero h1.reveal,
html.js .sec-head.reveal h2 {
  opacity: 0;
  transform: translate3d(0, 0.42em, 0);
  clip-path: inset(100% -6% 0 -6%);
  transition: opacity 0.7s var(--ease), transform 0.9s var(--ease), clip-path 0.9s var(--ease);
  transition-delay: var(--d, 0ms);
}
html.js .sec-head.reveal h2 { transition-delay: calc(var(--d, 0ms) + 110ms); }
html.js .hero h1 .line.reveal.is-in,
html.js .hero h1.reveal.is-in,
html.js .sec-head.reveal.is-in h2 {
  opacity: 1;
  transform: none;
  clip-path: inset(-14% -6% -14% -6%);
}

/* 卡片内列表批次入场 */
html.js .reveal :is(.ticks > li, .plug__list > li, .tags > li, .hero__stats > li, .pain dl > div, .stats > .stat) {
  opacity: 0;
  transform: translate3d(0, 14px, 0);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
  transition-delay: calc(var(--d, 0ms) + 130ms);
}
html.js .reveal.is-in :is(.ticks > li, .plug__list > li, .tags > li, .hero__stats > li, .pain dl > div, .stats > .stat) {
  opacity: 1;
  transform: none;
}
html.js .reveal.is-in :is(.ticks > li, .plug__list > li, .tags > li, .hero__stats > li, .pain dl > div, .stats > .stat):nth-child(2) { transition-delay: calc(var(--d, 0ms) + 175ms); }
html.js .reveal.is-in :is(.ticks > li, .plug__list > li, .tags > li, .hero__stats > li, .pain dl > div, .stats > .stat):nth-child(3) { transition-delay: calc(var(--d, 0ms) + 220ms); }
html.js .reveal.is-in :is(.ticks > li, .plug__list > li, .tags > li, .hero__stats > li, .pain dl > div, .stats > .stat):nth-child(4) { transition-delay: calc(var(--d, 0ms) + 265ms); }
html.js .reveal.is-in :is(.ticks > li, .plug__list > li, .tags > li, .hero__stats > li, .pain dl > div, .stats > .stat):nth-child(5) { transition-delay: calc(var(--d, 0ms) + 310ms); }
html.js .reveal.is-in :is(.ticks > li, .plug__list > li, .tags > li, .hero__stats > li, .pain dl > div, .stats > .stat):nth-child(6) { transition-delay: calc(var(--d, 0ms) + 355ms); }
html.js .reveal.is-in :is(.ticks > li, .plug__list > li, .tags > li, .hero__stats > li, .pain dl > div, .stats > .stat):nth-child(7) { transition-delay: calc(var(--d, 0ms) + 400ms); }
html.js .reveal.is-in :is(.ticks > li, .plug__list > li, .tags > li, .hero__stats > li, .pain dl > div, .stats > .stat):nth-child(n+8) { transition-delay: calc(var(--d, 0ms) + 445ms); }

/* 勾选符号逐个弹出 */
html.js .reveal .ticks > li::before {
  opacity: 0;
  transform: rotate(-45deg) scale(0.3);
  transition: transform 0.45s var(--ease), opacity 0.35s var(--ease);
  transition-delay: calc(var(--d, 0ms) + 240ms);
}
html.js .reveal .ticks--dot > li::before { transform: scale(0.3); }
html.js .reveal.is-in .ticks > li::before { opacity: 1; transform: rotate(-45deg) scale(1); }
html.js .reveal.is-in .ticks--dot > li::before { opacity: 1; transform: scale(1); }
html.js .reveal.is-in .ticks > li:nth-child(2)::before { transition-delay: calc(var(--d, 0ms) + 285ms); }
html.js .reveal.is-in .ticks > li:nth-child(3)::before { transition-delay: calc(var(--d, 0ms) + 330ms); }
html.js .reveal.is-in .ticks > li:nth-child(4)::before { transition-delay: calc(var(--d, 0ms) + 375ms); }
html.js .reveal.is-in .ticks > li:nth-child(5)::before { transition-delay: calc(var(--d, 0ms) + 420ms); }
html.js .reveal.is-in .ticks > li:nth-child(6)::before { transition-delay: calc(var(--d, 0ms) + 465ms); }
html.js .reveal.is-in .ticks > li:nth-child(7)::before { transition-delay: calc(var(--d, 0ms) + 510ms); }
html.js .reveal.is-in .ticks > li:nth-child(n+8)::before { transition-delay: calc(var(--d, 0ms) + 555ms); }

/* 图标 / 步骤序号 / 伙伴徽标弹入 */
html.js .reveal :is(.icon-chip, .step__no, .partner__mark) {
  opacity: 0;
  transform: scale(0.55) rotate(-6deg);
  transition: opacity 0.5s var(--ease), transform 0.65s cubic-bezier(0.34, 1.56, 0.64, 1);
  transition-delay: calc(var(--d, 0ms) + 100ms);
}
html.js .reveal.is-in :is(.icon-chip, .step__no, .partner__mark) { opacity: 1; transform: none; }

/* 活动页步骤连接线生长 */
html.js .step.reveal .step__line {
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.5s var(--ease) calc(var(--d, 0ms) + 360ms);
}
html.js .step.reveal.is-in .step__line { transform: scaleX(1); }

/* 渐变文字缓慢流光 */
.grad,
.stat .num,
.quota .num {
  background-size: 220% 100%;
  animation: gradDrift 10s ease-in-out infinite alternate;
}
@keyframes gradDrift {
  from { background-position: 0% 50%; }
  to { background-position: 100% 50%; }
}

/* 主按钮扫光 */
.btn--primary::after {
  content: "";
  position: absolute;
  top: -25%;
  bottom: -25%;
  left: 0;
  width: 36%;
  background: linear-gradient(100deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0));
  transform: translateX(-240%) skewX(-16deg);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.7s var(--ease), opacity 0.25s var(--ease);
}
.btn--primary:hover::after { transform: translateX(330%) skewX(-16deg); opacity: 1; }

/* FAQ 手风琴：高度由 JS 平滑驱动，这里保证收起时裁剪 */
.faq__body { overflow: hidden; }

/* ---------- 27. 活动大板块 / 产品详情页（L1-L3） ---------- */

/* 首页底部活动大板块 */
.campaign-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(40px, 6vw, 76px) clamp(22px, 5vw, 60px);
  border: 1px solid var(--amber-line);
  border-radius: var(--r-xl);
  background:
    radial-gradient(880px 420px at 84% -6%, rgba(248, 165, 60, 0.2), transparent 64%),
    radial-gradient(680px 380px at 6% 108%, rgba(255, 138, 61, 0.14), transparent 66%),
    linear-gradient(165deg, rgba(248, 165, 60, 0.1), rgba(10, 12, 20, 0.5));
  text-align: center;
}
.campaign-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 208, 138, 0.5), transparent);
}
.campaign-panel .quota { margin-top: 6px; }
.campaign-panel .lede { max-width: 640px; margin-inline: auto; }
.campaign-points {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.campaign-points li {
  padding: 7px 15px;
  border: 1px solid var(--amber-line);
  border-radius: 999px;
  background: rgba(248, 165, 60, 0.08);
  color: var(--amber-3);
  font-size: 13.5px;
  font-weight: 600;
}

/* L1-L3 快速切换胶囊 */
.lv-switch { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.lv-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--dim);
  font-size: 14px;
  font-weight: 600;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease),
    background-color 0.25s var(--ease), color 0.25s var(--ease);
}
a.lv-pill:hover { transform: translateY(-2px); border-color: var(--amber-line); color: var(--amber-3); }
.lv-pill.is-current {
  border-color: var(--amber-line);
  background: rgba(248, 165, 60, 0.12);
  color: var(--amber-3);
}
.lv-pill.is-current::after {
  content: "当前";
  margin-left: 2px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(248, 165, 60, 0.16);
  font-size: 11.5px;
  font-weight: 600;
}

/* 通用内边距卡片（详情页） */
.card--pad { padding: 26px; display: grid; gap: 12px; align-content: start; }
.card--pad h3 { font-size: 19px; }

/* 双列勾选列表 */
.ticks--cols { grid-template-columns: 1fr; }
@media (min-width: 861px) {
  .ticks--cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px 30px; }
}

/* L1-L3 对比表 */
.cmp {
  margin-top: 46px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, 0.015);
}
.cmp table { width: 100%; min-width: 680px; border-collapse: collapse; font-size: 14px; }
.cmp th, .cmp td { padding: 13px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.cmp tbody tr:last-child th, .cmp tbody tr:last-child td { border-bottom: 0; }
.cmp thead th { background: rgba(255, 255, 255, 0.03); font-size: 14.5px; }
.cmp thead a { color: var(--text); }
.cmp thead a:hover { color: var(--amber-3); }
.cmp th[scope="row"] {
  width: 132px;
  color: var(--mute);
  font-weight: 600;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.02);
}
.cmp td { color: var(--dim); }
.cmp th.is-current, .cmp td.is-current { background: rgba(248, 165, 60, 0.07); color: var(--amber-3); }
.cmp thead th.is-current { color: var(--amber-3); }

/* 活动说明里的内链 */
.promise a { color: var(--amber-3); }
.promise a:hover { text-decoration: underline; }