/* ============================================
   微匠科技 599 小程序模板 — 渐变炫彩风
   深色底 + 大范围紫/蓝/粉渐变光效 + 玻璃拟态
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-deep: #05010f;
  --bg-mid: #0d0620;
  --grad-main: linear-gradient(120deg, #7c3aed, #3b82f6, #ec4899);
  --grad-hero: linear-gradient(120deg, #a78bfa, #60a5fa, #f472b6);
  --neon-purple: #a78bfa;
  --neon-blue: #60a5fa;
  --neon-pink: #f472b6;
  --text-main: #f5f3ff;
  --text-dim: rgba(235, 230, 255, 0.66);
  --glass-bg: rgba(255, 255, 255, 0.055);
  --glass-border: rgba(255, 255, 255, 0.14);
}

html, body {
  min-height: 100vh;
  overflow-x: hidden;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(ellipse 90% 60% at 15% -5%, rgba(124, 58, 237, 0.4), transparent 60%),
    radial-gradient(ellipse 80% 55% at 90% 10%, rgba(59, 130, 246, 0.32), transparent 60%),
    radial-gradient(ellipse 70% 60% at 50% 110%, rgba(236, 72, 153, 0.35), transparent 65%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-mid) 50%, #0a0520 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  position: relative;
}

/* ---------------- 粒子画布 ---------------- */
#particleCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ---------------- 大范围渐变光晕 ---------------- */
.aurora {
  position: fixed;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.5;
  z-index: 0;
  pointer-events: none;
  will-change: transform;
}

.aurora-1 {
  width: 700px;
  height: 700px;
  top: -220px;
  left: -180px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.65), transparent 70%);
  animation: auroraFloat 11s ease-in-out infinite alternate;
}

.aurora-2 {
  width: 640px;
  height: 640px;
  top: 28%;
  right: -240px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.6), transparent 70%);
  animation: auroraFloat 13s ease-in-out infinite alternate-reverse;
}

.aurora-3 {
  width: 760px;
  height: 760px;
  bottom: -280px;
  left: 22%;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.55), transparent 70%);
  animation: auroraFloat 15s ease-in-out infinite alternate;
}

@keyframes auroraFloat {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(60px, -40px) scale(1.2); }
}

/* ---------------- 网格装饰 ---------------- */
.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(167, 139, 250, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(167, 139, 250, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 55% at 50% 35%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 55% at 50% 35%, #000 30%, transparent 75%);
}

/* ---------------- 顶部导航 ---------------- */
.navbar {
  position: relative;
  z-index: 5;
  width: min(1160px, 92vw);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.logo-badge {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 2px;
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-badge .accent {
  -webkit-text-fill-color: var(--neon-pink);
  filter: drop-shadow(0 0 12px rgba(236, 72, 153, 0.8));
}

.logo-tag {
  font-size: 10px;
  letter-spacing: 4px;
  color: var(--text-dim);
  opacity: 0.7;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14.5px;
  letter-spacing: 1px;
  position: relative;
  transition: color 0.3s;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--grad-main);
  border-radius: 2px;
  transition: width 0.3s;
}

.nav-links a:hover {
  color: var(--text-main);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 9px 22px;
  border-radius: 40px;
  background: var(--grad-main);
  background-size: 200% 100%;
  color: #fff !important;
  font-weight: 700;
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.45);
  animation: gradientMove 4s ease infinite;
}

.nav-cta::after {
  display: none;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(236, 72, 153, 0.55);
}

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

/* ---------------- 主视觉区 ---------------- */
.hero {
  position: relative;
  z-index: 5;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 70px 20px 90px;
}

.hero-eyebrow {
  font-size: 13px;
  letter-spacing: 6px;
  color: var(--neon-purple);
  text-shadow: 0 0 14px rgba(167, 139, 250, 0.7);
  margin-bottom: 22px;
  opacity: 0.9;
}

.hero-title {
  font-size: clamp(34px, 7vw, 76px);
  font-weight: 900;
  letter-spacing: 4px;
  line-height: 1.15;
  margin-bottom: 20px;
  background: var(--grad-hero);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientMove 6s ease infinite;
  filter: drop-shadow(0 6px 40px rgba(139, 92, 246, 0.35));
}

.hero-slogan {
  font-size: clamp(13px, 2vw, 16px);
  letter-spacing: 3px;
  color: var(--text-dim);
  margin-bottom: 34px;
}

/* 599 大字 */
.hero-599 {
  display: flex;
  gap: 18px;
  margin-bottom: 18px;
  perspective: 900px;
}

.hero-599 .num {
  font-size: clamp(96px, 21vw, 210px);
  font-weight: 900;
  line-height: 1;
  color: #fff;
  background: linear-gradient(180deg, #fff 15%, #a78bfa 45%, #60a5fa 75%, #f472b6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: numFloat 3.4s ease-in-out infinite;
  filter: drop-shadow(0 0 26px rgba(139, 92, 246, 0.5));
}

.hero-599 .num:nth-child(1) { animation-delay: 0s; }
.hero-599 .num:nth-child(2) { animation-delay: 0.4s; }
.hero-599 .num:nth-child(3) { animation-delay: 0.8s; }

@keyframes numFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-20px); }
}

.hero-sub {
  font-size: clamp(16px, 2.6vw, 22px);
  letter-spacing: 6px;
  color: var(--text-dim);
  margin-bottom: 50px;
}

/* ---------------- 行动按钮 ---------------- */
.enter-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 18px 54px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 3px;
  color: #fff;
  background: var(--grad-main);
  background-size: 220% 100%;
  border: none;
  border-radius: 60px;
  cursor: pointer;
  overflow: hidden;
  box-shadow: 0 0 36px rgba(139, 92, 246, 0.5), 0 0 70px rgba(236, 72, 153, 0.25);
  transition: transform 0.25s, box-shadow 0.25s;
  animation: gradientMove 3.5s ease infinite, btnPulse 2.2s ease-in-out infinite;
  z-index: 2;
}

.enter-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transition: left 0.6s;
}

.enter-btn:hover::before {
  left: 100%;
}

@keyframes btnPulse {
  0%, 100% { box-shadow: 0 0 30px rgba(139, 92, 246, 0.45), 0 0 60px rgba(59, 130, 246, 0.25); }
  50%      { box-shadow: 0 0 50px rgba(236, 72, 153, 0.6), 0 0 90px rgba(139, 92, 246, 0.35); }
}

.enter-btn:hover {
  transform: translateY(-4px) scale(1.04);
}

.enter-btn:active {
  transform: scale(0.96);
}

.enter-btn .btn-arrow {
  font-size: 24px;
  transition: transform 0.3s;
}

.enter-btn:hover .btn-arrow {
  transform: translateX(8px);
}

.enter-tip {
  margin-top: 22px;
  color: var(--text-dim);
  font-size: 13.5px;
  letter-spacing: 2px;
  animation: tipFlicker 3s ease-in-out infinite;
}

@keyframes tipFlicker {
  0%, 100% { opacity: 0.75; }
  50%      { opacity: 1; text-shadow: 0 0 10px var(--neon-purple); }
}

/* ---------------- 通用区块 ---------------- */
.section {
  position: relative;
  z-index: 5;
  width: min(1200px, 92vw);
  margin: 0 auto;
  padding: 90px 0 30px;
  scroll-margin-top: 30px;
}

.section-head {
  text-align: center;
  margin-bottom: 52px;
}

.section-head h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 900;
  letter-spacing: 2px;
  margin-bottom: 14px;
  background: var(--grad-hero);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientMove 6s ease infinite;
  filter: drop-shadow(0 4px 30px rgba(139, 92, 246, 0.3));
}

.section-head p {
  color: var(--text-dim);
  font-size: 15px;
  letter-spacing: 3px;
}

/* ---------------- 玻璃卡片通用 ---------------- */
.glass-card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  overflow: hidden;
}

/* ---------------- 图片圆环展示区 ---------------- */
.wheel-section {
  padding-top: 50px;
}

.wheel-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}

.wheel-stage {
  position: relative;
  width: 100%;
  height: 460px;
  perspective: 1600px;
  overflow: visible;
  touch-action: pan-y;
}

/* 环形光带（圆环底部的大范围渐变光环） */
.wheel-stage::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 680px;
  height: 680px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(124, 58, 237, 0.5), rgba(59, 130, 246, 0.45), rgba(236, 72, 153, 0.5), rgba(124, 58, 237, 0.5));
  filter: blur(60px);
  opacity: 0.45;
  animation: ringSpin 14s linear infinite;
  pointer-events: none;
}

@keyframes ringSpin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to   { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 品牌中心徽章 */
.wheel-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: radial-gradient(circle at 30% 25%, rgba(167, 139, 250, 0.5), transparent 60%),
    radial-gradient(circle at 70% 75%, rgba(244, 114, 182, 0.45), transparent 60%),
    rgba(10, 6, 28, 0.9);
  border: 2px solid rgba(255, 255, 255, 0.35);
  box-shadow:
    0 0 44px rgba(139, 92, 246, 0.55),
    0 0 90px rgba(236, 72, 153, 0.3),
    inset 0 0 26px rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  animation: centerPulse 3.4s ease-in-out infinite;
  user-select: none;
  cursor: grab;
}

.wheel-center.dragging {
  cursor: grabbing;
}

@keyframes centerPulse {
  0%, 100% { box-shadow: 0 0 44px rgba(139, 92, 246, 0.55), 0 0 90px rgba(236, 72, 153, 0.3), inset 0 0 26px rgba(255, 255, 255, 0.08); }
  50%      { box-shadow: 0 0 64px rgba(139, 92, 246, 0.75), 0 0 120px rgba(236, 72, 153, 0.45), inset 0 0 36px rgba(255, 255, 255, 0.14); }
}

.wheel-logo {
  font-size: 25px;
  font-weight: 900;
  letter-spacing: 4px;
  color: #fff;
  text-shadow: 0 0 16px rgba(167, 139, 250, 0.7);
}

.wheel-logo .accent {
  color: var(--neon-pink);
  text-shadow: 0 0 16px var(--neon-pink), 0 0 36px var(--neon-pink);
}

.wheel-tip {
  font-size: 10.5px;
  letter-spacing: 3px;
  color: var(--neon-blue);
  text-shadow: 0 0 8px rgba(96, 165, 250, 0.9);
  animation: tipFlicker 2.4s ease-in-out infinite;
}

/* 3D 旋转圆环 */
.wheel {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  transform-style: preserve-3d;
  cursor: grab;
  user-select: none;
  -webkit-user-drag: none;
}

.wheel.dragging {
  cursor: grabbing;
}

.wheel-item {
  position: absolute;
  left: 0;
  top: 0;
  margin: 0;
  width: 200px;
  height: 150px;
  border-radius: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.55), 0 0 20px rgba(139, 92, 246, 0.3);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.07);
  backface-visibility: visible;
  pointer-events: auto;
}

.wheel-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
  -webkit-user-drag: none;
  user-drag: none;
  -webkit-touch-callout: none;
  user-select: none;
}

.wheel-item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(167, 139, 250, 0.18), transparent 45%, rgba(244, 114, 182, 0.18));
  border-radius: 18px;
  pointer-events: none;
}

/* ---------------- 业务服务卡片 ---------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 34px 26px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform 0.35s, box-shadow 0.35s, border-color 0.35s;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.16), transparent);
  transition: left 0.6s;
}

.service-card:hover::before {
  left: 100%;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(167, 139, 250, 0.6);
  box-shadow: 0 0 34px rgba(139, 92, 246, 0.4), 0 18px 44px rgba(0, 0, 0, 0.45);
}

.service-icon {
  font-size: 42px;
  filter: drop-shadow(0 0 12px rgba(139, 92, 246, 0.7));
  animation: iconPulse 3s ease-in-out infinite;
}

.service-card:nth-child(2) .service-icon { animation-delay: 0.4s; }
.service-card:nth-child(3) .service-icon { animation-delay: 0.8s; }
.service-card:nth-child(4) .service-icon { animation-delay: 1.2s; }
.service-card:nth-child(5) .service-icon { animation-delay: 1.6s; }
.service-card:nth-child(6) .service-icon { animation-delay: 2s; }
.service-card:nth-child(7) .service-icon { animation-delay: 2.4s; }

@keyframes iconPulse {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50%      { transform: scale(1.18) rotate(-8deg); }
}

.service-card h3 {
  font-size: 21px;
  font-weight: 800;
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.service-card p {
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.8;
  flex: 1;
}

.service-link {
  color: var(--neon-blue);
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  transition: text-shadow 0.3s, transform 0.3s;
  display: inline-block;
  width: fit-content;
}

.service-link:hover {
  text-shadow: 0 0 14px rgba(96, 165, 250, 0.9);
  transform: translateX(4px);
}

/* ---------------- 核心优势卡片 ---------------- */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  width: min(1120px, 100%);
  margin: 0 auto;
}

.card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 32px 22px;
  text-align: center;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform 0.35s, box-shadow 0.35s, border-color 0.35s;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  transition: left 0.6s;
}

.card:hover::before {
  left: 100%;
}

.card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: rgba(96, 165, 250, 0.6);
  box-shadow: 0 0 34px rgba(59, 130, 246, 0.4), 0 18px 44px rgba(0, 0, 0, 0.45);
}

.card-icon {
  font-size: 46px;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 12px rgba(96, 165, 250, 0.6));
  animation: iconPulse 3s ease-in-out infinite;
}

.card:nth-child(2) .card-icon { animation-delay: 0.5s; }
.card:nth-child(3) .card-icon { animation-delay: 1s; }
.card:nth-child(4) .card-icon { animation-delay: 1.5s; }

.card h3 {
  font-size: 20px;
  margin-bottom: 10px;
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.card p {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------------- 合作流程 ---------------- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  counter-reset: step;
}

.step {
  position: relative;
  text-align: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 38px 22px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform 0.35s, box-shadow 0.35s;
}

.step:hover {
  transform: translateY(-8px);
  box-shadow: 0 0 30px rgba(139, 92, 246, 0.35), 0 14px 38px rgba(0, 0, 0, 0.4);
}

.step-num {
  display: inline-block;
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #f472b6, #a78bfa, #60a5fa);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 12px rgba(236, 72, 153, 0.5));
}

.step h3 {
  font-size: 19px;
  margin-bottom: 10px;
  color: var(--text-main);
}

.step p {
  color: var(--text-dim);
  font-size: 13.5px;
  line-height: 1.7;
}

/* ---------------- FAQ ---------------- */
.faq-list {
  width: min(860px, 100%);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 4px 22px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item:hover {
  border-color: rgba(167, 139, 250, 0.55);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
}

.faq-item summary {
  cursor: pointer;
  padding: 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  list-style: none;
  position: relative;
  padding-right: 34px;
  transition: color 0.3s;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: transform 0.3s;
}

.faq-item[open] summary {
  color: var(--neon-blue);
}

.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.faq-item p {
  padding: 0 0 18px;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------------- 底部 ---------------- */
.footer {
  position: relative;
  z-index: 5;
  width: 100%;
  text-align: center;
  padding: 30px 16px;
  color: var(--text-dim);
  font-size: 13px;
  letter-spacing: 1px;
  border-top: 1px solid rgba(167, 139, 250, 0.18);
  margin-top: 60px;
  background: linear-gradient(180deg, transparent, rgba(124, 58, 237, 0.08));
}

.footer a {
  color: var(--neon-blue);
  text-decoration: none;
  font-weight: 600;
}

.footer a:hover {
  text-decoration: underline;
  text-shadow: 0 0 10px rgba(96, 165, 250, 0.9);
}

.footer-sub {
  margin-top: 8px;
  font-size: 12px;
}

/* ---------------- 点击波纹特效 ---------------- */
.ripple {
  position: fixed;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  pointer-events: none;
  border: 2px solid rgba(167, 139, 250, 0.8);
  transform: translate(-50%, -50%);
  animation: rippleExpand 0.8s ease-out forwards;
  z-index: 999;
}

@keyframes rippleExpand {
  from {
    width: 24px;
    height: 24px;
    opacity: 0.9;
    border-width: 3px;
  }
  to {
    width: 320px;
    height: 320px;
    opacity: 0;
    border-width: 1px;
  }
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 960px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }

  .wheel-item {
    width: 160px;
    height: 120px;
  }

  .wheel-stage {
    height: 380px;
  }

  .wheel-stage::before {
    width: 520px;
    height: 520px;
  }

  .wheel-center {
    width: 124px;
    height: 124px;
  }

  .wheel-logo {
    font-size: 21px;
  }
}

@media (max-width: 620px) {
  .section {
    padding-top: 60px;
  }

  .services-grid,
  .process-steps,
  .features {
    grid-template-columns: 1fr;
  }

  .wheel-item {
    width: 128px;
    height: 96px;
  }

  .wheel-stage {
    height: 330px;
  }

  .wheel-stage::before {
    width: 420px;
    height: 420px;
  }

  .enter-btn {
    padding: 16px 42px;
    font-size: 17px;
  }

  .hero-sub {
    letter-spacing: 4px;
  }
}