/* ==============================
Contact Page
============================== */

.contact-page {
  position: relative;

  width: min(1400px, 90%);
  min-height: 100vh;
  margin: 0 auto;
  padding: 0 0 3rem;

  overflow: hidden;
}

/* ==============================
Decorative Background
============================== */

.contact-background-text {
  position: absolute;
  z-index: -1;
  right: auto;
  bottom: 2.5rem;
  left: 50%;

  color: transparent;

  font-size: clamp(9rem, 21vw, 23rem);
  font-weight: 600;
  line-height: 0.75;
  letter-spacing: -0.08em;

  -webkit-text-stroke:
    1px rgba(255, 255, 255, 0.05);

  transform: translateX(-50%);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}

/* ==============================
Contact Hero
============================== */

.contact-hero {
  position: relative;
  isolation: isolate;

  padding: 12rem 0 11rem;
}

.contact-eyebrow {
  margin: 0 0 3rem;

  color: #777;

  font-size: 0.7rem;
  line-height: 1;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.contact-hero h1 {
  max-width: 1100px;
  margin: 0;

  font-size: clamp(4rem, 9vw, 9rem);
  font-weight: 400;
  line-height: 0.88;
  letter-spacing: -0.065em;
}

/* 日语标题字号 */
html:lang(ja) .contact-hero h1 {
  font-size: clamp(3rem, 8vw, 8rem);
}

/* 日语和中文标题行距 */
html:lang(ja) .contact-hero h1,
html:lang(zh) .contact-hero h1 {
  line-height: 1.1;
}

.contact-hero h1 span {
  color: #777;
}

.contact-introduction {
  max-width: 430px;
  margin: 4rem 0 0 auto;

  color: #888;

  font-size: 1rem;
  line-height: 1.8;
}

/* ==============================
Contact Content
============================== */

.contact-content {
  display: grid;
  grid-template-columns:
    minmax(220px, 0.7fr)
    minmax(500px, 1.3fr);
  gap: clamp(5rem, 11vw, 12rem);

  padding: 7rem 0 12rem;

  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

/* ==============================
Contact Details
============================== */

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.contact-detail-label {
  color: #666;

  font-size: 0.65rem;
  line-height: 1;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.contact-detail a,
.contact-detail p {
  margin: 0;

  color: #d4d4d4;

  font-size: 0.9rem;
  line-height: 1.75;
}

.contact-detail a {
  position: relative;

  width: fit-content;

  transition: color 0.3s ease;
}

.contact-detail a::after {
  content: "";

  position: absolute;
  right: 0;
  bottom: -5px;
  left: 0;

  height: 1px;

  background: #fff;

  transform: scaleX(0);
  transform-origin: right;

  transition:
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.contact-detail a:hover {
  color: #fff;
}

.contact-detail a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ==============================
Availability
============================== */

.contact-status {
  display: flex;
  align-items: center;
  gap: 0.8rem;

  margin-top: 1rem;

  color: #888;

  font-size: 0.75rem;
  line-height: 1.4;
}

.contact-status-dot {
  width: 7px;
  height: 7px;

  border-radius: 50%;

  background: #6dff8b;
  box-shadow:
    0 0 14px rgba(109, 255, 139, 0.8);
}

/* ==============================
Form Heading
============================== */

.contact-form-heading {
  display: flex;
  align-items: center;
  gap: 1.5rem;

  margin-bottom: 3rem;
}

.contact-form-heading p {
  margin: 0;

  color: #aaa;

  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ==============================
Form
============================== */

.contact-form {
  width: 100%;
}

.contact-field {
  position: relative;

  width: 100%;
  padding: 2rem 0;

  border-top: 1px solid rgba(255, 255, 255, 0.14);

  transition: border-color 0.35s ease;
}

.contact-field:last-of-type {
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.contact-field:focus-within {
  border-color: rgba(255, 255, 255, 0.65);
}

.contact-field label {
  display: flex;
  align-items: center;
  gap: 1rem;

  margin-bottom: 1.2rem;

  color: #bbb;

  font-size: 0.75rem;
  line-height: 1;
  letter-spacing: 0.07em;
}

.contact-field label span {
  color: #555;

  font-size: 0.65rem;
}

.contact-field input:not([type="hidden"]),
.contact-field textarea {
  display: block;

  width: 100%;
  margin: 0;
  padding: 0;

  border: 0;
  border-radius: 0;
  outline: 0;

  background: transparent;
  color: #fff;

  font-family: inherit;
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  font-weight: 400;
  line-height: 1.45;
}



/* Chrome / Edge 自动填充样式 */
.contact-field input:-webkit-autofill,
.contact-field input:-webkit-autofill:hover,
.contact-field input:-webkit-autofill:focus,
.contact-field input:-webkit-autofill:active {
  -webkit-text-fill-color: #fff !important;
  caret-color: #fff;

  -webkit-box-shadow:
    0 0 0 1000px #0b0b0b inset !important;

  box-shadow:
    0 0 0 1000px #0b0b0b inset !important;

  transition:
    background-color 9999s ease-out 0s;
}



.contact-field input::placeholder,
.contact-field textarea::placeholder {
  color: #2a2a2a;
  font-size: clamp(1.05rem, 1.6vw, 1.4rem);
  opacity: 1;
}

.contact-field textarea {
  min-height: 150px;

  resize: vertical;
}

/* ==============================
Custom Select
============================== */

.custom-select {
  position: relative;
  z-index: 20;

  width: 100%;
}

.custom-select-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;

  width: 100%;
  margin: 0;
  padding: 0 0.25rem 0 0;

  border: 0;
  border-radius: 0;
  outline: 0;

  background: transparent;
  color: #777;

  font-family: inherit;
  font-size: clamp(1.05rem, 1.6vw, 1.4rem);
  font-weight: 400;
  line-height: 1.45;
  text-align: left;

  cursor: pointer;

  transition:
    color 0.3s ease;
}

.custom-select:not(.has-value) .custom-select-value {
  color: #2a2a2a;
  font-size: clamp(1.05rem, 1.6vw, 1.4rem);
}

.custom-select-trigger:hover,
.custom-select-trigger:focus-visible,
.custom-select.is-open .custom-select-trigger,
.custom-select.has-value .custom-select-trigger {
  color: #fff;
}

.custom-select-value {
  min-width: 0;

  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.custom-select-arrow {
  flex: 0 0 auto;

  width: 8px;
  height: 8px;
  margin-right: 2px;

  border-right: 1px solid #777;
  border-bottom: 1px solid #777;

  transform: translateY(-2px) rotate(45deg);

  transition:
    border-color 0.3s ease,
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.custom-select-trigger:hover .custom-select-arrow,
.custom-select-trigger:focus-visible .custom-select-arrow,
.custom-select.is-open .custom-select-arrow {
  border-color: #ddd;
}

.custom-select.is-open .custom-select-arrow {
  transform: translateY(3px) rotate(225deg);
}

/* 展开的选项面板 */
.custom-select-options {
  position: absolute;
  z-index: 30;
  top: calc(100% + 1rem);
  right: 0;
  left: 0;

  max-height: 320px;
  padding: 0.55rem;

  overflow-y: auto;

  border: 1px solid rgba(220, 235, 245, 0.13);

  background:
    linear-gradient(
      145deg,
      rgba(25, 28, 31, 0.98),
      rgba(14, 16, 18, 0.99)
    );

  box-shadow:
    0 22px 55px rgba(0, 0, 0, 0.45),
    0 0 35px rgba(175, 215, 235, 0.025);

  opacity: 0;
  visibility: hidden;
  pointer-events: none;

  transform: translateY(-8px);

  transition:
    opacity 0.25s ease,
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0s linear 0.35s;
}

.custom-select.is-open .custom-select-options {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;

  transform: translateY(0);

  transition-delay: 0s;
}

/* 单个选项 */
.custom-select-option {
  position: relative;

  display: flex;
  align-items: center;

  width: 100%;
  min-height: 48px;
  padding: 0.85rem 2.8rem 0.85rem 1.5rem;

  overflow: hidden;

  border: 0;
  outline: 0;

  background: transparent;
  color: #aaa;

  font-family: inherit;
  font-size: clamp(0.92rem, 1.2vw, 1.05rem);
  font-weight: 400;
  line-height: 1.45;
  text-align: left;

  cursor: pointer;

  transition:
    background-color 0.3s ease,
    color 0.3s ease,
    padding-left 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

/* 左侧短线 */
.custom-select-option::before {
  content: "";

  position: absolute;
  top: 50%;
  left: 0.65rem;

  width: 8px;
  height: 1px;

  background: rgba(220, 240, 250, 0.85);

  opacity: 0;

  transform:
    translateY(-50%)
    scaleX(0);

  transform-origin: left;

  transition:
    opacity 0.25s ease,
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

/* 选中状态右侧圆点 */
.custom-select-option::after {
  content: "";

  position: absolute;
  top: 50%;
  right: 1.2rem;

  width: 4px;
  height: 4px;

  border-radius: 50%;

  background: #dceef7;
  box-shadow:
    0 0 8px rgba(190, 225, 245, 0.55);

  opacity: 0;

  transform:
    translateY(-50%)
    scale(0.5);

  transition:
    opacity 0.25s ease,
    transform 0.3s ease;
}

.custom-select-option:hover,
.custom-select-option:focus-visible {
  padding-left: 1.75rem;

  background: rgba(205, 230, 245, 0.055);
  color: #f2f6f8;
}

.custom-select-option:hover::before,
.custom-select-option:focus-visible::before {
  opacity: 1;

  transform:
    translateY(-50%)
    scaleX(1);
}

.custom-select-option[aria-selected="true"] {
  color: #fff;
}

.custom-select-option[aria-selected="true"]::after {
  opacity: 1;

  transform:
    translateY(-50%)
    scale(1);
}

/* 下拉菜单滚动条 */
.custom-select-options {
  scrollbar-width: thin;
  scrollbar-color:
    rgba(255, 255, 255, 0.18)
    transparent;
}

.custom-select-options::-webkit-scrollbar {
  width: 5px;
}

.custom-select-options::-webkit-scrollbar-track {
  background: transparent;
}

.custom-select-options::-webkit-scrollbar-thumb {
  border-radius: 10px;

  background: rgba(255, 255, 255, 0.18);
}

/* ==============================
Submit Area
============================== */

.contact-submit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;

  padding-top: 3.5rem;
}

.contact-submit-row > p {
  margin: 0;

  color: #666;

  font-size: 0.7rem;
  line-height: 1.6;
}

.contact-submit {
  position: relative;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4rem;

  min-width: 240px;
  padding: 1.2rem 1.4rem;

  overflow: hidden;

  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 100px;

  background: transparent;
  color: #fff;

  font-size: 0.8rem;
  line-height: 1;
  letter-spacing: 0.07em;

  cursor: pointer;

  transition:
    color 0.4s ease,
    border-color 0.4s ease;
}

.contact-submit::before {
  content: "";

  position: absolute;
  z-index: 0;
  inset: 0;

  border-radius: inherit;

  background: #fff;

  transform: translateX(-102%);

  transition:
    transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.contact-submit span {
  position: relative;
  z-index: 1;
}

.contact-submit-arrow {
  font-size: 1.1rem;

  transition: transform 0.4s ease;
}

.contact-submit:hover {
  border-color: #fff;
  color: #111;
}

.contact-submit:hover::before {
  transform: translateX(0);
}

.contact-submit:hover .contact-submit-arrow {
  transform: translate(3px, -3px);
}


/* ==============================
Form Status
============================== */

.contact-form-status {
  min-height: 1.5rem;
  margin: 1.5rem 0 0;

  color: #777;

  font-size: 0.75rem;
  line-height: 1.6;
}

.contact-form-status[data-state="success"] {
  color: #6dff8b;
}

.contact-form-status[data-state="error"] {
  color: #ff8585;
}

/* 有错误的整行字段 */
.contact-field.has-error {
  border-color: rgba(255, 133, 133, 0.72);
}

/* 原生输入框错误状态 */
.contact-field input[aria-invalid="true"],
.contact-field textarea[aria-invalid="true"] {
  color: #ff8585;
}

.contact-field input[aria-invalid="true"]::placeholder,
.contact-field textarea[aria-invalid="true"]::placeholder {
  color: rgba(255, 133, 133, 0.72);
}

/* 自定义咨询类型错误状态 */
.custom-select-trigger[aria-invalid="true"],
.custom-select-trigger[aria-invalid="true"]
  .custom-select-value {
  color: #ff8585;
}

.custom-select-trigger[aria-invalid="true"]
  .custom-select-arrow {
  border-color: #ff8585;
}

.contact-submit:disabled {
  opacity: 0.55;
  cursor: wait;
}

.contact-submit:disabled:hover {
  border-color:
    rgba(255, 255, 255, 0.35);

  color: #fff;
}

.contact-submit:disabled:hover::before {
  transform: translateX(-102%);
}

.contact-submit:disabled:hover
.contact-submit-arrow {
  transform: none;
}



/* ==============================
Tablet
============================== */

@media (max-width: 900px) {
  .contact-hero {
    padding-top: 11rem;
    padding-bottom: 8rem;
  }

  .contact-introduction {
    margin-top: 3rem;
    margin-left: 0;
  }

  .contact-content {
    grid-template-columns:
      minmax(180px, 0.6fr)
      minmax(0, 1.4fr);
    gap: 4rem;

    padding-top: 5rem;
    padding-bottom: 9rem;
  }
}

/* ==============================
Mobile
============================== */

@media (max-width: 700px) {
  .contact-page {
    width: var(--page-width-mobile);
  }

  .contact-background-text {
    bottom: 2rem;
  }

  .contact-hero {
    padding-top: 9rem;
    padding-bottom: 7rem;
  }

  .contact-eyebrow {
    margin-bottom: 2rem;
  }

  .contact-hero h1 {
    font-size: clamp(3.5rem, 17vw, 6rem);
  }

  .contact-introduction {
    margin-top: 2.5rem;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 7rem;

    padding-top: 4rem;
    padding-bottom: 8rem;
  }

  .contact-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem 2rem;
  }

  .contact-status {
    grid-column: 1 / -1;
  }

  .contact-submit-row {
    align-items: flex-end;
  }

  .custom-select-options {
    top: calc(100% + 0.8rem);
  }

  .custom-select-option {
    min-height: 46px;
  }
}

/* ==============================
Small Mobile
============================== */

@media (max-width: 490px) {
  .contact-details {
    grid-template-columns: 1fr;
  }

  .contact-status {
    grid-column: auto;
  }

  .contact-submit-row {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-submit {
    width: 100%;
  }
}

/* ==============================
Reduced Motion
============================== */

@media (prefers-reduced-motion: reduce) {
  .contact-submit,
  .contact-submit::before,
  .contact-submit-arrow,
  .contact-detail a::after,
  .custom-select-trigger,
  .custom-select-arrow,
  .custom-select-options,
  .custom-select-option,
  .custom-select-option::before,
  .custom-select-option::after {
    transition: none;
  }
}