/* ============================================================
   站内表单（2026-09-06）
   一套样式管全站：联系页、商务合作、简历投递、产品询价、长期服务计划。
   语言跟 aw.css 一致——白卡 + 发丝线 + 药丸按钮，焦点态用紫罗兰，成功态用青柠。
   结构：.sform > .sform__grid(.sfield…) + .sform__acts + .sform__done
   ============================================================ */

.sform { position: relative; }
.sform__hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------------- 字段 ---------------- */
.sform__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
}
.sfield--full { grid-column: 1 / -1; }
@media (max-width: 760px) { .sform__grid { grid-template-columns: 1fr; gap: 16px; } }

.sfield > label,
.sfield__k {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--mut);
  margin-bottom: 8px;
  letter-spacing: .01em;
}
.sfield > label em,
.sfield__k em { font-style: normal; color: var(--violet); margin-left: 2px; }
.sfield__k small { font-weight: 400; color: var(--mut-2); margin-left: 6px; }

.sfield input[type="text"],
.sfield input[type="tel"],
.sfield input[type="email"],
.sfield input[type="url"],
.sfield input[type="number"],
.sfield select,
.sfield textarea {
  width: 100%;
  padding: 13px 15px;
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-ui);
  outline: none;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
  -webkit-appearance: none;
  appearance: none;
}
.sfield textarea { min-height: 118px; resize: vertical; line-height: 1.7; }
.sfield select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none'%3E%3Cpath d='M2.5 4.5L6 8l3.5-3.5' stroke='%23222' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 15px center;
  padding-right: 38px;
  cursor: pointer;
}
.sfield input::placeholder,
.sfield textarea::placeholder { color: var(--mut-2); }
.sfield input:focus,
.sfield select:focus,
.sfield textarea:focus {
  border-color: var(--violet);
  box-shadow: 0 0 0 3px rgba(94, 106, 210, .13);
}
.sfield input:user-invalid,
.sfield textarea:user-invalid { border-color: #e2683c; }

/* 多选胶囊 */
.sform .schips { display: flex; flex-wrap: wrap; gap: 8px; }
.sform .schip {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  font-size: 14px;
  color: var(--mut);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 99px;
  cursor: pointer;
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
  user-select: none;
}
.sform .schip input { position: absolute; opacity: 0; pointer-events: none; }
.sform .schip:hover { border-color: var(--ink); color: var(--ink); }
.sform .schip:has(input:checked) { background: var(--ink); border-color: var(--ink); color: #fff; }
.sform .schip:has(input:focus-visible) { box-shadow: 0 0 0 3px rgba(94, 106, 210, .2); }

/* 文件 */
.sfield__file {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 1px dashed var(--line);
  border-radius: var(--r-ui);
  background: var(--card);
  cursor: pointer;
  transition: border-color .18s var(--ease), background .18s var(--ease);
}
.sfield__file:hover { border-color: var(--violet); }
.sfield__file input { position: absolute; opacity: 0; width: 0; height: 0; }
.sfield__file i {
  width: 34px; height: 34px; flex: none;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--accent);
  font-style: normal; font-size: 14px;
}
.sfield__file b { display: block; font-size: 14px; font-weight: 500; }
.sfield__file small { display: block; font-size: 12.5px; color: var(--mut-2); }

/* ---------------- 操作区 ---------------- */
.sform__acts {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 26px;
}
.sform__hint { font-size: 13px; color: var(--mut-2); max-width: 46ch; line-height: 1.6; }
.sform__msg {
  flex-basis: 100%;
  font-size: 13.5px;
  color: #c2542c;
  background: rgba(226, 104, 60, .08);
  border-radius: var(--r-ui);
  padding: 12px 15px;
}
.sform__msg p { margin: 0 0 4px; }
.sform__mailto { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }

/* 提交中：按钮变成呼吸的点 */
.sform[data-state="sending"] .sform__submit { pointer-events: none; opacity: .6; }
.sform[data-state="sending"] .sform__submit > span::after {
  content: "";
  display: inline-block;
  width: 5px; height: 5px;
  margin-left: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: sform-pulse 1s var(--ease) infinite;
}
@keyframes sform-pulse { 0%, 100% { opacity: .25; } 50% { opacity: 1; } }

/* ---------------- 成功 ---------------- */
.sform__done { display: none; }
.sform[data-state="done"] .sform__body { display: none; }
.sform[data-state="done"] .sform__done {
  display: block;
  padding: 34px 34px 30px;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: var(--card);
  outline: none;
  animation: sform-in .5s var(--ease) both;
}
@keyframes sform-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.sform__done i {
  display: grid; place-items: center;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--accent);
  margin-bottom: 18px;
  font-style: normal;
}
.sform__done i::after {
  content: "";
  width: 15px; height: 8px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(-45deg) translate(1px, -2px);
}
.sform__done h3 { font-size: clamp(21px, 2.4vw, 27px); font-weight: 500; letter-spacing: -.02em; margin-bottom: 10px; }
.sform__done p { color: var(--mut); max-width: 52ch; }
.sform__done .sform__again {
  margin-top: 18px;
  font-size: 14px;
  color: var(--mut);
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.sform__done .sform__again:hover { color: var(--ink); }

/* ---------------- 侧栏窄版（产品询价） ---------------- */
.sform--tight .sform__grid { grid-template-columns: 1fr; gap: 13px; }
.sform--tight .sfield input,
.sform--tight .sfield select,
.sform--tight .sfield textarea { padding: 11px 13px; font-size: 14.5px; }
.sform--tight .sfield textarea { min-height: 84px; }
.sform--tight .sform__acts { margin-top: 18px; }
.sform--tight .sform__done { padding: 26px 24px; }

@media (prefers-reduced-motion: reduce) {
  .sform__done, .sform[data-state="sending"] .sform__submit > span::after { animation: none; }
}