/* ===== 关于我们页面 ===== */

.about-page {
  position: relative;
  overflow: clip;
  min-height: 100vh;
  background: #f8fafc;
  font-family: monospace;
  -webkit-font-smoothing: antialiased;
  color: #1e293b;
}

.about-page ::selection {
  background: #bfdbfe;
  color: #1e3a8a;
}

/* ---------- 背景装饰球 ---------- */
.about-blob {
  position: absolute;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  mix-blend-mode: multiply;
  filter: blur(40px);
  opacity: .25;
  pointer-events: none;
}
.about-blob--1 { top: 0; left: -1rem;  background: #d8b4fe; }
.about-blob--2 { top: 0; right: -1rem; background: #93c5fd; animation-delay: 2s; }
.about-blob--3 { bottom: -2rem; left: 5rem; background: #a5b4fc; animation-delay: 4s; }

@keyframes aboutBlob {
  0%   { transform: translate(0, 0)      scale(1);   }
  33%  { transform: translate(30px, -50px) scale(1.1); }
  66%  { transform: translate(-20px, 20px) scale(0.9); }
  100% { transform: translate(0, 0)      scale(1);   }
}
.about-blob { animation: aboutBlob 7s ease-in-out infinite; }

/* ---------- Hero ---------- */
.about-hero {
  position: relative;
  z-index: 1;
  padding: 5rem 1rem 4rem;
  text-align: center;
}
.about-hero__inner { max-width: 48rem; margin: 0 auto; }

.about-hero__kicker {
  display: inline-flex;
  align-items: center;
  padding: .375rem 1rem;
  border-radius: 9999px;
  font-size: .875rem;
  font-weight: 600;
  background: #fff;
  color: #2563eb;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
  border: 1px solid #dbeafe;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(4px);
}

.about-hero__title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -.025em;
  color: #0f172a;
  margin: 0 0 1.5rem;
}

.about-hero__lead {
  font-size: 1.125rem;
  line-height: 1.75;
  color: #475569;
  max-width: 42rem;
  margin: 0 auto;
}
.about-hero__lead strong {
  background: linear-gradient(to right, #2563eb, #6366f1, #9333ea);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  font-size: 1.5rem;
}

@media (min-width: 640px) {
  .about-hero        { padding-top: 7rem; padding-bottom: 5rem; }
  .about-hero__title { font-size: 3rem; }
  .about-hero__lead  { font-size: 1.25rem; }
}

/* ---------- 主内容区 ---------- */
.about-main {
  position: relative;
  z-index: 1;
  max-width: 80rem;
  margin: 0 auto;
  padding: 3rem 1rem 6rem;
}

/* ---------- 三列优势卡片 ---------- */
.about-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 768px) {
  .about-features { grid-template-columns: repeat(3, 1fr); }
}

.about-card {
  background: rgba(255,255,255,.8);
  backdrop-filter: blur(12px);
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: 0 8px 30px rgba(0,0,0,.04);
  border: 1px solid rgba(255,255,255,.5);
  transition: transform .3s, box-shadow .3s;
}
.about-card:hover {
  transform: translateY(-.5rem);
}
.about-card--blue:hover  { box-shadow: 0 20px 40px rgba(59,130,246,.1);  }
.about-card--green:hover { box-shadow: 0 20px 40px rgba(16,185,129,.1);  }
.about-card--amber:hover { box-shadow: 0 20px 40px rgba(245,158,11,.1);  }

.about-card__icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  box-shadow: inset 0 2px 4px rgba(0,0,0,.06);
  transition: transform .3s;
}
.about-card:hover .about-card__icon {
  transform: scale(1.1) rotate(3deg);
}
.about-card__icon svg { width: 1.75rem; height: 1.75rem; }

.about-card__icon--blue  { background: linear-gradient(135deg, #eff6ff, #dbeafe); color: #2563eb; }
.about-card__icon--green { background: linear-gradient(135deg, #ecfdf5, #d1fae5); color: #059669; }
.about-card__icon--amber { background: linear-gradient(135deg, #fffbeb, #fef3c7); color: #d97706; }

.about-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 .75rem;
}
.about-card__text {
  color: #505050;
  line-height: 1.75;
  font-size: .9375rem;
  margin: 0;
}

/* ---------- 对比区 ---------- */
.about-compare {
  margin-top: 6rem;
  margin-bottom: 2rem;
}
.about-compare__header {
  text-align: center;
  margin-bottom: 3rem;
}
.about-compare__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 1rem;
}
.about-compare__desc {
  font-size: 1.125rem;
  color: #475569;
  margin: 0;
}
@media (min-width: 640px) {
  .about-compare__title { font-size: 1.875rem; }
}

.about-compare__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 64rem;
  margin: 0 auto;
}
@media (min-width: 768px) {
  .about-compare__grid { grid-template-columns: repeat(2, 1fr); }
}

/* 共用面板样式 */
.about-panel {
  backdrop-filter: blur(8px);
  border-radius: 1.5rem;
  padding: 2rem;
  transition: box-shadow .3s;
}

/* 劣势面板 */
.about-panel--bad {
  background: linear-gradient(135deg, rgb(255 255 255 / 80%), rgba(255, 255, 255, .5));
  border: 1px solid rgb(233 233 233 / 50%);
}
.about-panel--bad:hover { box-shadow: 0 10px 25px rgba(0,0,0,.06); }

/* 优势面板 */
.about-panel--good {
  position: relative;
  background: linear-gradient(135deg, rgba(239,246,255,.8), rgba(255,255,255,.5));
  border: 1px solid rgb(184 184 184 / 50%);
  /* box-shadow: 0 10px 30px rgba(59,130,246,.1); */
}
.about-panel--good:hover { box-shadow: 0 20px 40px rgba(59,130,246,.12); }

.about-panel__badge {
  position: absolute;
  top: -1rem;
  right: -1rem;
  background: linear-gradient(to right, #2563eb, #4f46e5);
  color: #fff;
  font-size: .8125rem;
  font-weight: 700;
  padding: .375rem 1rem;
  border-radius: 9999px;
  box-shadow: 0 4px 12px rgba(59,130,246,.3);
  transform: rotate(3deg);
}

.about-panel__head {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}
.about-panel__icon {
  width: 3rem;
  height: 3rem;
  border-radius: .75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  /* box-shadow: inset 0 2px 4px rgba(0,0,0,.06); */
}
.about-panel__icon svg { width: 1.5rem; height: 1.5rem; }
.about-panel__icon--red  {background: #ffffff;/* color: #ef4444; */}
.about-panel__icon--blue { background: #dbeafe; color: #2563eb; }
.about-panel__icon--brand { background: transparent; }
.about-panel__logo { width: 100%; height: 100%; object-fit: contain; border-radius: .5rem; }

.about-panel__heading {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
}
.about-panel--bad  .about-panel__heading { color: #7f1d1d; }
.about-panel--good .about-panel__heading { color: #1e3a8a; }

.about-panel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.about-panel__list li {
  display: flex;
  align-items: flex-start;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid rgba(0,0,0,.06);
}
.about-panel__list li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}
.about-panel__list li .icon {
  flex-shrink: 0;
  margin-right: .75rem;
  margin-top: .125rem;
  font-size: 1.125rem;
}
.about-panel__list li span {
  color: #7f7f7f;
  line-height: 1.75;
}
.about-panel__list li strong {
  color: #0f172a;
}

/* ---------- CTA ---------- */
.about-cta {
  position: relative;
  overflow: hidden;
  margin-top: 5rem;
  /* background: linear-gradient(to right, #2563eb, #ffffff, #bebebe); */
  border-radius: 1.5rem;
  padding: 2.5rem;
  /* box-shadow: 0 25px 50px rgba(0,0,0,.15); */
  text-align: center;
  color: #000000;
}
@media (min-width: 640px) {
  .about-cta { padding: 3.5rem; }
}

.about-cta__glow {
  position: absolute;
  width: 10rem;
  height: 10rem;
  background: #fff;
  opacity: .1;
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}
.about-cta__glow--tr { top: -2.5rem; right: -2.5rem; }
.about-cta__glow--bl { bottom: -2.5rem; left: -2.5rem; }

.about-cta__title {
  position: relative;
  z-index: 1;
  font-size: 1.875rem;
  font-weight: 800;
  margin: 0 0 1.25rem;
}
@media (min-width: 640px) {
  .about-cta__title { font-size: 2.25rem; }
}
.about-cta__desc {
  position: relative;
  z-index: 1;
  color: #0071ff;
  font-size: 1.125rem;
  margin: 0 0 2rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}
@media (min-width: 640px) {
  .about-cta__desc { font-size: 1.25rem; }
}

.about-cta__btn {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  background: #000000;
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  box-shadow: 0 0 20px rgba(255,255,255,.3);
  transition: background .2s, transform .2s;
  text-decoration: none;
}
.about-cta__btn:hover {
  /* background: #f8fafc; */
  transform: scale(1.05);
}
.about-cta__btn svg {
  width: 1.25rem;
  height: 1.25rem;
  margin-left: .5rem;
}