/* ============================================================
   大臂哥的工具助手 · 素色标准版
   ============================================================ */

:root {
  --navy: #003b75;
  --navy-dark: #002a54;
  --orange: #ff9923;
  --ink: #222;
  --ink-light: #555;
  --line: #e4e7ec;
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --radius: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; }

.container {
  max-width: 1020px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1020px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand:hover { text-decoration: none; }
.brand-logo { height: 34px; width: auto; display: block; }
.brand-name { font-size: 17px; font-weight: 700; color: var(--navy); }

.main-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav-link {
  padding: 6px 14px;
  border-radius: 999px;
  color: var(--ink-light);
  font-size: 14px;
  transition: background .15s, color .15s;
}
.nav-link:hover { background: var(--bg-soft); color: var(--navy); text-decoration: none; }
.nav-link.active { background: var(--navy); color: #fff; }

.view { display: none; }
.view.active { display: block; }

.page-title {
  font-size: 30px;
  color: var(--navy);
  margin: 8px 0 6px;
  letter-spacing: 1px;
}
.page-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: var(--orange);
  margin-top: 10px;
}
.view-lead { color: var(--ink-light); margin: 14px 0 36px; font-size: 15px; }

.group-title {
  font-size: 19px; color: var(--navy-dark);
  margin: 36px 0 18px;
  display: flex; align-items: center; gap: 10px;
}
.badge {
  display: inline-block; font-size: 12px; font-weight: 700;
  padding: 3px 10px; border-radius: 999px; letter-spacing: 1px;
}
.badge-free { background: #e6f4ea; color: #1a7f37; }
.badge-local { background: #fff4e0; color: #b26a00; }

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
}
.tool-card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 18px;
  display: flex; flex-direction: column; align-items: flex-start;
  transition: box-shadow .18s, transform .18s;
}
.tool-card:hover {
  box-shadow: 0 6px 20px rgba(0,59,117,.10);
  transform: translateY(-2px);
  text-decoration: none;
}
.tool-img { width: 56px; height: 56px; margin-bottom: 12px; }
.tool-name { font-size: 15px; color: var(--navy-dark); margin: 0 0 8px; line-height: 1.45; }
.tool-desc { font-size: 13.5px; color: var(--ink-light); margin: 0; line-height: 1.7; }

.group-divider { text-align: center; margin: 40px 0 10px; position: relative; }
.group-divider::before {
  content: ""; position: absolute; top: 50%; left: 0; right: 0;
  height: 1px; background: var(--line);
}
.group-divider span {
  position: relative; background: #fff; padding: 0 18px;
  font-size: 13px; color: var(--ink-light);
}

.more-note {
  margin-top: 40px; padding: 20px 22px;
  background: var(--bg-soft); border-radius: var(--radius); font-size: 14px;
}
.more-note strong { color: var(--navy-dark); }
.more-note p { margin: 6px 0 0; color: var(--ink-light); }

.work-list { display: flex; flex-direction: column; gap: 16px; }
.work-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px; display: flex; align-items: center; gap: 20px;
  transition: box-shadow .18s;
}
.work-card:hover { box-shadow: 0 4px 16px rgba(0,59,117,.08); }
.work-img { width: 64px; height: 64px; flex-shrink: 0; }
.work-body { flex: 1; min-width: 0; }
.work-title { margin: 0 0 6px; font-size: 16px; color: var(--navy-dark); }
.work-brief { margin: 0; font-size: 14px; color: var(--ink-light); }
.work-more {
  flex-shrink: 0; font-size: 13.5px; padding: 7px 16px;
  border: 1px solid var(--navy); border-radius: 999px; color: var(--navy);
}
.work-more:hover { background: var(--navy); color: #fff; text-decoration: none; }

.detail-back { display: inline-block; margin-bottom: 20px; font-size: 14px; }
.detail-article {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 34px;
}
.detail-head {
  display: flex; align-items: center; gap: 18px;
  padding-bottom: 20px; border-bottom: 1px solid var(--line); margin-bottom: 22px;
}
.detail-icon { width: 60px; height: 60px; }
.detail-title { margin: 0 0 6px; font-size: 22px; color: var(--navy-dark); }
.detail-meta { font-size: 13px; color: var(--orange); font-weight: 600; }
.detail-body h3 { font-size: 16.5px; color: var(--navy-dark); margin: 26px 0 10px; }
.detail-body p { margin: 8px 0; color: var(--ink); }
.detail-body ul { margin: 8px 0; padding-left: 22px; color: var(--ink); }
.detail-body li { margin: 5px 0; }
.detail-nav {
  display: flex; justify-content: space-between; gap: 16px;
  margin-top: 32px; padding-top: 18px;
  border-top: 1px solid var(--line); font-size: 14px;
}

.about-intro {
  display: flex; gap: 28px; align-items: flex-start;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; margin-bottom: 36px;
}
.selfie {
  width: 120px; height: 120px; border-radius: 50%;
  flex-shrink: 0; background: var(--bg-soft);
}
.about-text h2 { margin: 0 0 10px; font-size: 19px; color: var(--navy-dark); }
.about-text p { margin: 8px 0; }

.section-title {
  font-size: 19px; color: var(--navy-dark); margin: 0 0 18px;
  padding-left: 12px; border-left: 4px solid var(--orange);
}
.exp-list { display: flex; flex-direction: column; gap: 16px; }
.exp-item {
  display: flex; gap: 20px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px; align-items: flex-start;
}
.exp-img {
  width: 56px; height: 56px; flex-shrink: 0;
  background: var(--bg-soft); border-radius: 8px;
}
.exp-text h3 { margin: 0 0 6px; font-size: 15.5px; color: var(--navy-dark); }
.exp-text p { margin: 0; font-size: 14px; color: var(--ink-light); }

.moments-feed {
  display: flex; flex-direction: column; gap: 16px; max-width: 640px;
}
.m-card {
  display: flex; gap: 14px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px;
}
.m-avatar {
  width: 42px; height: 42px; border-radius: 8px;
  background: var(--navy); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; flex-shrink: 0;
}
.m-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 6px; }
.m-name { font-weight: 700; color: var(--navy-dark); font-size: 14.5px; }
.m-time { font-size: 12.5px; color: #999; }
.m-text { margin: 4px 0 8px; font-size: 14.5px; }
.m-img img { max-width: 220px; border-radius: 8px; border: 1px solid var(--line); }

.contact-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.contact-card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px 22px;
}
.contact-card h2 {
  font-size: 16.5px; color: var(--navy-dark);
  margin: 0 0 12px; padding-bottom: 10px; border-bottom: 1px solid var(--line);
}
.contact-card p { margin: 8px 0; font-size: 14px; }
.contact-card .philosophy {
  margin-top: 14px; padding: 10px 14px;
  background: var(--bg-soft); border-radius: 8px; color: var(--navy-dark);
}
.contact-card .note { color: var(--ink-light); font-size: 13.5px; }

.site-footer {
  border-top: 1px solid var(--line); background: var(--bg-soft);
  padding: 28px 0; margin-top: 40px; text-align: center;
  color: var(--ink-light); font-size: 13px;
}
.footer-brand {
  display: flex; align-items: center; justify-content: center;
  gap: 8px; margin-bottom: 10px;
  font-weight: 700; color: var(--navy-dark);
}
.footer-logo { height: 28px; }
.footer-meta { margin-top: 8px; }
.footer-meta a { color: var(--ink-light); }

@media (max-width: 720px) {
  .header-inner { flex-direction: column; align-items: flex-start; gap: 10px; }
  .about-intro { flex-direction: column; align-items: center; text-align: left; }
  .work-card { flex-direction: column; align-items: flex-start; }
  .detail-head { flex-direction: column; align-items: flex-start; }
}
/* ---------------- 联系按钮 ---------------- */
.contact-cta-wrap { margin: 4px 0 8px; }
.contact-cta {
  display: inline-block;
  padding: 10px 26px;
  background: var(--navy);
  color: #fff;
  border: 0;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  letter-spacing: 1px;
  transition: background .18s, transform .18s;
}
.contact-cta:hover { background: var(--navy-dark); transform: translateY(-1px); }

/* ---------------- 联系弹窗 ---------------- */
.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 20, 45, .45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-mask[hidden] { display: none; }
.modal {
  position: relative;
  width: 100%;
  max-width: 440px;
  max-height: 92vh;
  overflow-y: auto;
  background: #fff;
  border-radius: 16px;
  padding: 30px 30px 24px;
  box-shadow: 0 24px 60px rgba(0, 30, 70, .28);
  animation: modalIn .22s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal-close {
  position: absolute;
  top: 12px; right: 14px;
  width: 34px; height: 34px;
  border: 0;
  border-radius: 50%;
  background: var(--bg-soft);
  color: var(--ink-light);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.modal-close:hover { background: #eef0f3; color: var(--ink); }
.modal-title { margin: 0 0 4px; font-size: 21px; color: var(--navy-dark); }
.modal-sub { margin: 0 0 18px; font-size: 13.5px; color: var(--ink-light); }
.modal-label { display: block; font-size: 13px; font-weight: 700; color: var(--ink); margin: 14px 0 6px; }
.modal-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fafbfc;
  transition: border-color .15s, background .15s;
}
.modal-input:focus {
  outline: none;
  border-color: var(--navy);
  background: #fff;
}
.modal-textarea { resize: vertical; min-height: 96px; }
.modal-options { display: flex; gap: 10px; margin-top: 4px; }
.opt {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  background: #fff;
  transition: border-color .15s, background .15s;
}
.opt:has(input:checked) {
  border-color: var(--navy);
  background: #f2f6fb;
  font-weight: 700;
  color: var(--navy-dark);
}
.opt input { accent-color: var(--navy); }
.modal-error {
  margin: 8px 0 0;
  font-size: 13px;
  color: #b3261e;
  min-height: 18px;
}
.modal-send {
  width: 100%;
  margin-top: 8px;
  padding: 12px;
  background: var(--navy);
  color: #fff;
  border: 0;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  letter-spacing: 2px;
  transition: background .18s, opacity .18s;
}
.modal-send:hover { background: var(--navy-dark); }
.modal-send:disabled { opacity: .6; cursor: not-allowed; }
.modal-tip { margin: 12px 0 0; font-size: 12px; color: #999; text-align: center; }
.modal-success { text-align: center; padding: 8px 0 4px; }
.modal-success .icon { font-size: 40px; color: #1a7f37; }
.modal-success h3 { margin: 8px 0 4px; color: var(--navy-dark); font-size: 18px; }
.modal-success p { margin: 0; font-size: 13.5px; color: var(--ink-light); }

@media (max-width: 720px) {
  .modal { padding: 24px 20px 20px; }
  .modal-options { flex-direction: column; gap: 8px; }
}