/* ==========================================================================
   联系我们页 - 独立原创样式
   布局：编号式联系条目 + 大图邮戳侧栏 / 信件式表单 / 邮票式快速入口
   香水潮流风：浅蓝 + 浅紫 + 亮粉，纵向卷轴展开感
   ========================================================================== */

/* ==========================================================================
   模块一：联系信息 —— 大图邮戳侧栏 + 编号式联系条目（错位排列）
   ========================================================================== */
.ci-layout {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 56px;
  align-items: start;
  margin-top: 24px;
}

/* ---- 左：大图侧栏 + 邮戳 ---- */
.ci-visual {
  position: sticky;
  top: 100px;
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 5;
  background: var(--purple-mist);
}

.ci-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(1.05);
}

/* 邮戳圆章 */
.ci-stamp {
  position: absolute;
  top: 26px;
  right: 26px;
  width: 132px;
  height: 132px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(237, 231, 248, 0.92) 100%);
  backdrop-filter: blur(8px);
  border: 1.5px dashed rgba(155, 126, 222, 0.55);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: var(--shadow-md);
  transform: rotate(-8deg);
}

.ci-stamp-tag {
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--pink-deep);
  font-family: var(--font-en);
  font-weight: 700;
}

.ci-stamp strong {
  font-size: 24px;
  color: var(--purple-deep);
  font-family: var(--font-en);
  letter-spacing: 1px;
  line-height: 1;
  margin: 6px 0 2px;
}

.ci-stamp-sub {
  font-size: 10.5px;
  color: var(--purple);
  letter-spacing: 1px;
}

.ci-stamp-line {
  display: block;
  width: 60%;
  height: 1px;
  background: var(--purple-soft);
  margin: 8px 0 6px;
}

.ci-stamp-coord {
  font-size: 9.5px;
  color: var(--muted);
  font-family: var(--font-en);
  letter-spacing: 1px;
}

/* 底部地址缎带 */
.ci-ribbon {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(74, 45, 138, 0.82) 0%, rgba(232, 88, 140, 0.78) 100%);
  backdrop-filter: blur(10px);
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-md);
}

.ci-ribbon svg {
  flex-shrink: 0;
  color: var(--pink-soft);
}

/* ---- 右：编号式联系条目 ---- */
.ci-head {
  margin-bottom: 30px;
}

.ci-head .eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--purple-deep);
  text-transform: uppercase;
  font-family: var(--font-en);
  margin-bottom: 14px;
  padding: 5px 16px;
  background: var(--purple-mist);
  border-radius: var(--r-pill);
}

.ci-head h2 {
  font-size: 34px;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.ci-head h2 .accent {
  color: var(--purple);
  position: relative;
}

.ci-head h2 .accent::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 100%;
  height: 8px;
  background: var(--pink-soft);
  z-index: -1;
  border-radius: 4px;
}

.ci-head p {
  font-size: 15px;
  line-height: 1.95;
  color: var(--body);
}

.ci-item {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 26px 28px;
  background: #fff;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  transition: all 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
  position: relative;
  overflow: hidden;
}

/* 错位卷轴感：偶数条目向右偏移 */
.ci-list .ci-item:nth-child(odd) {
  margin-right: 36px;
}
.ci-list .ci-item:nth-child(even) {
  margin-left: 36px;
}

.ci-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--purple) 0%, var(--pink) 100%);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s ease;
}

.ci-item:hover {
  transform: translateY(-4px);
  border-color: var(--purple-soft);
  box-shadow: var(--shadow-md);
}

.ci-item:hover::before {
  transform: scaleY(1);
}

.ci-no {
  font-size: 32px;
  font-family: var(--font-en);
  font-weight: 700;
  color: var(--purple-soft);
  line-height: 1;
  flex-shrink: 0;
  letter-spacing: 1px;
  transition: color 0.4s ease;
}

.ci-item:hover .ci-no {
  color: var(--purple);
}

.ci-ico {
  flex-shrink: 0;
  width: 54px;
  height: 54px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--purple-mist) 0%, var(--pink-mist) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--purple-deep);
  transition: all 0.4s ease;
}

.ci-item:hover .ci-ico {
  background: linear-gradient(135deg, var(--purple) 0%, var(--pink) 100%);
  color: #fff;
  transform: rotate(-6deg);
}

.ci-body {
  flex: 1;
  min-width: 0;
}

.ci-label {
  display: block;
  font-size: 11.5px;
  letter-spacing: 2px;
  color: var(--muted);
  font-family: var(--font-en);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.ci-body strong {
  display: block;
  font-size: 18px;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 4px;
  letter-spacing: 0.3px;
}

.ci-body em {
  display: block;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  font-style: normal;
}

.ci-arrow {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--cream-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--purple-deep);
  transition: all 0.4s ease;
}

.ci-item:hover .ci-arrow {
  background: var(--purple);
  color: #fff;
  transform: translateX(4px);
}


/* ==========================================================================
   模块二：信件式联系表单（独特，不复用 .contact-form 样式）
   ========================================================================== */
.letter-form {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex;
}

/* 左侧渐变竖向边条 —— 信封封口意象 */
.lf-edge {
  flex-shrink: 0;
  width: 14px;
  background: linear-gradient(180deg, var(--blue) 0%, var(--purple) 45%, var(--pink) 100%);
  position: relative;
}

.lf-edge::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  transform: translate(-50%, -50%);
  box-shadow:
    0 -120px 0 #fff,
    0 120px 0 #fff,
    0 -240px 0 rgba(255, 255, 255, 0.55),
    0 240px 0 rgba(255, 255, 255, 0.55);
}

.lf-inner {
  flex: 1;
  padding: 44px 50px 40px;
  min-width: 0;
}

/* 顶部元信息行 —— 信头 */
.lf-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 22px;
  margin-bottom: 30px;
  border-bottom: 1px dashed var(--line);
  gap: 16px;
  flex-wrap: wrap;
}

.lf-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--muted);
  letter-spacing: 0.3px;
}

.lf-meta-item svg {
  color: var(--purple);
}

.lf-meta-stamp {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--purple-deep);
  padding: 4px 12px;
  border: 1px solid var(--purple-soft);
  border-radius: var(--r-pill);
  background: var(--purple-mist);
}

/* 字段行 */
.lf-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 26px;
}

.lf-field {
  position: relative;
  margin-bottom: 26px;
}

.lf-row .lf-field {
  margin-bottom: 0;
}

.lf-field label {
  display: block;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--purple-deep);
  font-weight: 600;
  text-transform: uppercase;
  font-family: var(--font-en);
  margin-bottom: 10px;
}

.lf-field input,
.lf-field textarea,
.lf-field select {
  width: 100%;
  padding: 12px 4px;
  border: none;
  border-bottom: 1.5px solid var(--line);
  background: transparent;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  transition: all 0.25s ease;
  border-radius: 0;
}

.lf-field input::placeholder,
.lf-field textarea::placeholder {
  color: var(--muted);
  opacity: 0.7;
}

.lf-field textarea {
  resize: vertical;
  min-height: 110px;
  line-height: 1.7;
}

.lf-field input:focus,
.lf-field textarea:focus,
.lf-field select:focus {
  outline: none;
  border-bottom-color: transparent;
}

/* 自定义下划线动画 */
.lf-underline {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background: linear-gradient(90deg, var(--blue) 0%, var(--purple) 50%, var(--pink) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.lf-field:focus-within .lf-underline {
  transform: scaleX(1);
}

/* select 容器：原生 select 透明覆盖在自定义显示上 */
.lf-select-wrap {
  position: relative;
}

.lf-field select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 28px;
  cursor: pointer;
  background: transparent;
}

.lf-caret {
  position: absolute;
  right: 4px;
  bottom: 14px;
  color: var(--purple);
  pointer-events: none;
  transition: transform 0.3s ease;
}

.lf-field:focus-within .lf-caret {
  transform: rotate(180deg);
}

/* 底部提交区 */
.lf-foot {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 14px;
  padding-top: 24px;
  border-top: 1px dashed var(--line);
  flex-wrap: wrap;
}

.lf-submit {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 32px;
  border: none;
  border-radius: var(--r-pill);
  background: linear-gradient(135deg, var(--purple) 0%, var(--pink) 100%);
  color: #fff;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  box-shadow: var(--shadow-pink);
  transition: all 0.35s ease;
}

.lf-submit svg {
  transition: transform 0.35s ease;
}

.lf-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255, 123, 169, 0.45);
}

.lf-submit:hover svg {
  transform: translate(3px, -3px) rotate(-8deg);
}

/* form-tip 增强样式（保留 .form-tip 类名，更高特异性） */
.letter-form .form-tip {
  margin-top: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.5;
}

.letter-form .form-tip svg {
  color: var(--blue-deep);
  flex-shrink: 0;
}


/* ==========================================================================
   模块三：邮票式快速入口卡片
   ========================================================================== */
.stamp-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stamp-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 34px 28px 28px;
  background: #fff;
  border-radius: var(--r-md);
  border: 1px dashed var(--purple-soft);
  text-decoration: none;
  color: inherit;
  transition: all 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
  overflow: hidden;
  min-height: 230px;
}

/* 邮票齿孔意象 —— 顶部 / 底部半圆列 */
.sc-perf {
  position: absolute;
  left: 0;
  right: 0;
  height: 8px;
  display: flex;
  justify-content: space-around;
  pointer-events: none;
}

.sc-perf-top {
  top: -4px;
}
.sc-perf-bot {
  bottom: -4px;
}

.sc-perf::before,
.sc-perf::after {
  content: "";
  flex: 1;
}

/* 用多重径向渐变模拟齿孔 */
.sc-perf-top {
  background-image: radial-gradient(circle at 50% 100%, transparent 4px, #fff 4.5px);
  background-size: 18px 8px;
  background-repeat: repeat-x;
}

.sc-perf-bot {
  background-image: radial-gradient(circle at 50% 0%, transparent 4px, #fff 4.5px);
  background-size: 18px 8px;
  background-repeat: repeat-x;
}

.stamp-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue) 0%, var(--purple) 50%, var(--pink) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s ease;
}

.stamp-card:hover {
  transform: translateY(-6px);
  border-color: var(--purple);
  box-shadow: var(--shadow-md);
}

.stamp-card:hover::before {
  transform: scaleX(1);
}

.sc-no {
  font-size: 12px;
  font-family: var(--font-en);
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--pink-deep);
  padding: 3px 10px;
  background: var(--pink-mist);
  border-radius: var(--r-pill);
  margin-bottom: 18px;
}

.sc-ico {
  width: 56px;
  height: 56px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--blue-mist) 0%, var(--purple-mist) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--purple-deep);
  margin-bottom: 18px;
  transition: all 0.4s ease;
}

.stamp-card:hover .sc-ico {
  background: linear-gradient(135deg, var(--blue) 0%, var(--purple) 100%);
  color: #fff;
  transform: rotate(-6deg) scale(1.05);
}

.stamp-card h4 {
  font-size: 18px;
  color: var(--ink);
  margin-bottom: 8px;
}

.stamp-card p {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--body);
  margin-bottom: 18px;
  flex: 1;
}

.sc-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--purple-deep);
  letter-spacing: 0.5px;
}

.sc-link svg {
  transition: transform 0.3s ease;
}

.stamp-card:hover .sc-link svg {
  transform: translateX(4px);
}


/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1100px) {
  .stamp-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 980px) {
  .ci-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .ci-visual {
    position: static;
    aspect-ratio: 16 / 10;
    max-width: 640px;
  }
  .ci-list .ci-item:nth-child(odd),
  .ci-list .ci-item:nth-child(even) {
    margin-left: 0;
    margin-right: 0;
  }
  .lf-inner {
    padding: 36px 34px 32px;
  }
}

@media (max-width: 760px) {
  .lf-row {
    grid-template-columns: 1fr;
    gap: 26px;
    margin-bottom: 0;
  }
  .lf-row .lf-field {
    margin-bottom: 26px;
  }
  .lf-edge {
    width: 10px;
  }
  .lf-inner {
    padding: 30px 24px 28px;
  }
  .lf-foot {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }
  .lf-submit {
    justify-content: center;
  }
  .letter-form .form-tip {
    justify-content: center;
    text-align: center;
  }
  .ci-head h2 {
    font-size: 26px;
  }
  .ci-item {
    flex-wrap: wrap;
    gap: 16px;
    padding: 22px 22px;
  }
  .ci-arrow {
    display: none;
  }
  .ci-body {
    width: calc(100% - 54px - 22px);
  }
}

@media (max-width: 600px) {
  .stamp-grid {
    grid-template-columns: 1fr;
  }
  .ci-visual {
    aspect-ratio: 4 / 3;
  }
  .ci-stamp {
    width: 108px;
    height: 108px;
    top: 18px;
    right: 18px;
  }
  .ci-stamp strong {
    font-size: 20px;
  }
  .ci-ribbon {
    left: 18px;
    right: 18px;
    bottom: 18px;
    font-size: 12px;
    padding: 12px 16px;
  }
  .ci-no {
    font-size: 26px;
  }
  .lf-meta {
    justify-content: center;
  }
}

@media (max-width: 420px) {
  .ci-body strong {
    font-size: 16px;
  }
  .lf-inner {
    padding: 26px 20px 24px;
  }
}