/* ====== 方案和案例页样式 ====== */

/* ====== Hero ====== */
.cases-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(7rem, 14vw, 10rem) 0 clamp(3rem, 6vw, 5rem);
  background: linear-gradient(168deg, #020617 0%, #0f172a 30%, #1e1b4b 65%, #0c0a1d 100%);
  color: #e2e8f0;
}

.cases-hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 50% 45% at 25% 35%, rgba(6, 182, 212, 0.1), transparent 50%),
    radial-gradient(ellipse 45% 40% at 75% 65%, rgba(168, 85, 247, 0.08), transparent 50%);
}

.cases-hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.2;
  background-image:
    linear-gradient(rgba(99, 102, 241, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.08) 1px, transparent 1px);
  background-size: 56px 56px;
}

.cases-hero__orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cases-hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}

.cases-hero__orb--1 {
  width: 300px;
  height: 300px;
  top: -8%;
  right: 12%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.3), transparent 65%);
  animation: cases-orb-float 12s ease-in-out infinite alternate;
}

.cases-hero__orb--2 {
  width: 240px;
  height: 240px;
  bottom: 8%;
  left: 8%;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.25), transparent 65%);
  animation: cases-orb-float 10s ease-in-out 2s infinite alternate-reverse;
}

@keyframes cases-orb-float {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(25px, -20px) scale(1.12); }
}

.cases-hero__inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cases-hero__eyebrow {
  display: inline-block;
  font-family: ui-monospace, "Cascadia Code", "Consolas", monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--neo-cyan);
  padding: 0.25rem 0.85rem;
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: 4px;
  background: rgba(34, 211, 238, 0.08);
  margin-bottom: 1.5rem;
}

.cases-hero__title {
  margin: 0 0 1.25rem;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.cases-hero__lead {
  max-width: 44rem;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
  color: #94a3b8;
}

/* ====== 通用区段 ====== */
.cases-section {
  padding: clamp(3rem, 6vw, 5rem) 0;
}

.cases-section__header {
  text-align: center;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.cases-section__tag {
  display: inline-block;
  font-family: ui-monospace, "Cascadia Code", "Consolas", monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.2rem 0.7rem;
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 4px;
  background: rgba(6, 182, 212, 0.06);
  margin-bottom: 0.85rem;
}

.cases-section__title {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 900;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.cases-section__desc {
  max-width: 40rem;
  margin: 0.75rem auto 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

/* ====== 数据概览 ====== */
.cases-overview {
  background: linear-gradient(180deg, #f0fdfa 0%, #ecfeff 50%, #f8fafc 100%);
}

.cases-overview__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}

@media (max-width: 768px) {
  .cases-overview__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.cases-overview__item {
  padding: 1.75rem 1rem;
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(6, 182, 212, 0.12);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.2s;
}

.cases-overview__item:hover {
  border-color: rgba(6, 182, 212, 0.35);
  box-shadow: 0 8px 28px rgba(6, 182, 212, 0.09);
  transform: translateY(-2px);
}

.cases-overview__num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.6rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.cases-overview__unit {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  opacity: 0.7;
}

.cases-overview__label {
  margin-top: 0.5rem;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
}

/* ====== 客户案例卡片 ====== */
.cases-stories {
  background: linear-gradient(180deg, #f8fafc 0%, #fff 40%, #f5f3ff 100%);
}

.cases-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 920px;
  margin: 0 auto;
}

.case-card {
  position: relative;
  padding: 2.25rem 2.5rem;
  border-radius: 18px;
  background: #fff;
  border: 1px solid rgba(14, 165, 233, 0.1);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1), transform 0.65s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.3s, box-shadow 0.3s;
}

.case-card.cases-revealed {
  opacity: 1;
  transform: translateY(0);
}

.case-card:hover {
  border-color: rgba(14, 165, 233, 0.3);
  box-shadow: 0 12px 40px rgba(8, 145, 178, 0.1);
}

.case-card__accent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 18px 18px 0 0;
  background: linear-gradient(90deg, transparent, #0891b2 20%, #6366f1 50%, #a855f7 80%, transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.case-card:hover .case-card__accent {
  opacity: 1;
}

/* 客户信息头 */
.case-card__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.case-card__avatar {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.case-card__avatar--blue    { background: linear-gradient(135deg, #0891b2, #06b6d4); }
.case-card__avatar--violet  { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
.case-card__avatar--orange  { background: linear-gradient(135deg, #ea580c, #f97316); }
.case-card__avatar--green   { background: linear-gradient(135deg, #059669, #34d399); }
.case-card__avatar--pink    { background: linear-gradient(135deg, #db2777, #f472b6); }
.case-card__avatar--indigo  { background: linear-gradient(135deg, #4f46e5, #818cf8); }

.case-card__info h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.3;
}

.case-card__meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.25rem;
}

.case-card__industry {
  font-size: 11px;
  font-weight: 700;
  padding: 0.15rem 0.55rem;
  border-radius: 5px;
  background: rgba(6, 182, 212, 0.08);
  color: #0891b2;
}

.case-card__region {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--muted);
}

/* 反馈引言 */
.case-card__quote {
  position: relative;
  padding: 1.25rem 1.5rem;
  margin: 0 0 1.25rem;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.03), rgba(99, 102, 241, 0.03));
  border-left: 3px solid var(--accent);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  font-style: italic;
}

.case-card__quote::before {
  content: "\201C";
  position: absolute;
  top: -8px;
  left: 12px;
  font-size: 42px;
  font-style: normal;
  color: rgba(6, 182, 212, 0.2);
  line-height: 1;
  font-family: Georgia, serif;
}

/* 数据结果 */
.case-card__results {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.case-card__result {
  padding: 0.6rem 1rem;
  border-radius: 10px;
  background: rgba(6, 182, 212, 0.05);
  border: 1px solid rgba(6, 182, 212, 0.12);
  text-align: center;
  flex: 1;
  min-width: 120px;
}

.case-card__result-num {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.case-card__result-label {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--muted);
  margin-top: 0.3rem;
}

/* 使用模块标签 */
.case-card__modules {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
}

.case-card__modules span {
  font-size: 11px;
  font-weight: 600;
  padding: 0.18rem 0.6rem;
  border-radius: 6px;
  background: rgba(14, 165, 233, 0.06);
  color: #0e7490;
  border: 1px solid rgba(14, 165, 233, 0.12);
}

/* 客户评价人 */
.case-card__person {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  font-size: 13px;
  color: var(--muted);
}

.case-card__person strong {
  color: var(--ink);
  font-weight: 700;
}

/* ====== 行业方案 ====== */
.cases-solutions {
  background: linear-gradient(180deg, #ecfeff 0%, #f0fdfa 50%, #f8fafc 100%);
}

.cases-sol__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .cases-sol__grid {
    grid-template-columns: 1fr;
  }
}

.cases-sol__card {
  padding: 2rem 1.75rem;
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(14, 165, 233, 0.1);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.3s, box-shadow 0.3s;
}

.cases-sol__card.cases-revealed {
  opacity: 1;
  transform: translateY(0);
}

.cases-sol__card:hover {
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: 0 12px 36px rgba(6, 182, 212, 0.1);
}

.cases-sol__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(99, 102, 241, 0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 1.25rem;
}

.cases-sol__card h3 {
  margin: 0 0 0.65rem;
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
}

.cases-sol__card p {
  margin: 0 0 1rem;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.cases-sol__steps {
  list-style: none;
  padding: 0;
  margin: 0;
}

.cases-sol__steps li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin-bottom: 0.35rem;
}

.cases-sol__steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}

/* ====== CTA 按钮组 ====== */
.cases-cta__btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ====== 响应式 ====== */
@media (max-width: 640px) {
  .case-card {
    padding: 1.5rem 1.25rem;
  }

  .case-card__results {
    flex-direction: column;
  }

  .case-card__result {
    min-width: auto;
  }
}

/* ====== 无障碍 ====== */
@media (prefers-reduced-motion: reduce) {
  .case-card,
  .cases-sol__card {
    opacity: 1;
    transform: none;
    transition: border-color 0.3s, box-shadow 0.3s;
  }

  .cases-hero__orb {
    animation: none;
  }
}