/* ---------- 14. 服务项目页 ---------- */
.service-locator { scroll-margin-top: calc(var(--nav-h) + 16px); }

/* 六大领域导航按钮：配色与各领域卡片同色系（独立样式） */
.svc-nav .filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-1);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.svc-nav .filter-btn svg {
  width: 17px;
  height: 17px;
  color: var(--fc, var(--primary-700));
  transition: transform .25s var(--ease);
}
.svc-nav .filter-btn[data-field="food"]      { --fc: #0e5c8e; --fc2: #0a3d73; }
.svc-nav .filter-btn[data-field="materials"] { --fc: #097582; --fc2: #06505c; }
.svc-nav .filter-btn[data-field="petro"]     { --fc: #155a8a; --fc2: #0d3a63; }
.svc-nav .filter-btn[data-field="pharma"]    { --fc: #3c33a0; --fc2: #2a2370; }
.svc-nav .filter-btn[data-field="perf"]      { --fc: #0a7192; --fc2: #064a63; }
.svc-nav .filter-btn[data-field="research"]  { --fc: #4b3090; --fc2: #332061; }
.svc-nav .filter-btn:hover,
.svc-nav .filter-btn.active {
  color: #fff;
  background: linear-gradient(135deg, var(--fc2), var(--fc));
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(6, 30, 66, .28);
  transform: translateY(-2px);
}
.svc-nav .filter-btn:hover svg,
.svc-nav .filter-btn.active svg { color: #fff; transform: scale(1.12); }
@media (max-width: 768px) {
  .svc-nav .filter-btn { padding: 9px 16px; font-size: 13px; border-radius: 10px; gap: 6px; }
  .svc-nav .filter-btn svg { width: 15px; height: 15px; }
}
.svc-block {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 0;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: 36px;
  transition: box-shadow .3s var(--ease), transform .3s var(--ease);
}
.svc-block:hover { box-shadow: var(--shadow-md); }
.svc-side {
  position: relative;
  padding: 42px 36px;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 26px;
  overflow: hidden;
}
.svc-side::after {
  content: "";
  position: absolute;
  right: -46px; bottom: -46px;
  width: 190px; height: 190px;
  border-radius: 50%;
  border: 26px solid rgba(255,255,255,.10);
  pointer-events: none;
}
.svc-icon { width: 58px; height: 58px; }
.svc-side h3 { font-size: 23px; font-weight: 800; letter-spacing: .02em; }
.svc-side p { font-size: 14.5px; color: rgba(255,255,255,.82); position: relative; }
.svc-side .svc-detail-btn {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,.5);
  background: rgba(255,255,255,.1);
  transition: background .25s var(--ease), border-color .25s var(--ease);
}
.svc-side .svc-detail-btn:hover { background: rgba(255,255,255,.22); border-color: #fff; }
.svc-side .svc-detail-btn svg { width: 16px; height: 16px; }
/* 六大领域主题色：偏科技感深色系（深蓝 / 深青 / 钢蓝 / 靛蓝 / 暗青蓝 / 深紫蓝） */
.side-1 { background: linear-gradient(140deg, #041e3d, #0a3d73 62%, #0e5c8e); }
.side-2 { background: linear-gradient(140deg, #03242c, #06505c 62%, #097582); }
.side-3 { background: linear-gradient(140deg, #061a33, #0d3a63 62%, #155a8a); }
.side-4 { background: linear-gradient(140deg, #141038, #2a2370 62%, #3c33a0); }
.side-5 { background: linear-gradient(140deg, #02202e, #064a63 62%, #0a7192); }
.side-6 { background: linear-gradient(140deg, #1a1030, #332061 62%, #4b3090); }
.svc-main { padding: 38px 40px; }
.svc-main h4 {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--accent-dark);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.svc-main h4::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.svc-items {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 22px;
}
.svc-items li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  color: var(--text-1);
}
.svc-items li::before {
  content: "";
  position: absolute;
  left: 0; top: .62em;
  width: 8px; height: 8px;
  border-radius: 2px;
  transform: rotate(45deg);
  background: linear-gradient(135deg, var(--primary-600), var(--accent));
}
.svc-items li a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.svc-items li a:hover {
  color: var(--primary-700);
  border-bottom-color: var(--primary-600);
}
.svc-standards { margin-top: 24px; }
.svc-standards li {
  padding: 10px 14px;
  background: var(--bg-page);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 13.5px;
  color: var(--text-2);
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}
.svc-standards li b { color: var(--primary-700); font-weight: 700; }
.modal-foot {
  padding: 0 30px 30px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
/* 服务页侧栏配图：蒙版直接加在图片上（mask-image），左侧淡出融入主题色渐变 */
.svc-side .svc-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .72;
  -webkit-mask-image: linear-gradient(100deg, rgba(0, 0, 0, .35) 0%, rgba(0, 0, 0, .65) 45%, rgba(0, 0, 0, 1) 100%);
  mask-image: linear-gradient(100deg, rgba(0, 0, 0, .35) 0%, rgba(0, 0, 0, .65) 45%, rgba(0, 0, 0, 1) 100%);
}
.svc-side > * { position: relative; z-index: 2; }
.svc-side .en { margin-top: 4px; font-size: 12.5px; letter-spacing: .14em; color: rgba(255,255,255,.6); text-transform: uppercase; }

/* ---------- 六大领域卡片：独立多端响应式 ---------- */
/* 平板（≤1080px）：卡片改为上下堆叠，侧栏作为带头图 */
@media (max-width: 1080px) {
  .svc-block { grid-template-columns: 1fr; }
  .svc-side {
    padding: 34px 32px;
    min-height: 240px;
  }
  .svc-main { padding: 32px; }
}

/* 中屏（≤900px）：项目列表降为单列，避免文字挤压 */
@media (max-width: 900px) {
  .svc-items { grid-template-columns: 1fr; }
}

/* 手机（≤768px）：压缩内边距与字号，按钮保持易点 */
@media (max-width: 768px) {
  .svc-block { border-radius: var(--radius); margin-bottom: 26px; }
  .svc-side {
    padding: 28px 22px;
    min-height: 200px;
    gap: 18px;
  }
  .svc-icon { width: 46px; height: 46px; }
  .svc-side h3 { font-size: 20px; }
  .svc-side p { font-size: 13.5px; }
  .svc-side .svc-detail-btn { padding: 9px 16px; font-size: 13px; }
  .svc-main { padding: 24px 20px 26px; }
  .svc-items { gap: 10px 0; }
  .svc-items li { font-size: 14px; }
  .svc-standards { margin-top: 18px; }
  .svc-standards li { padding: 9px 12px; font-size: 12.5px; }
}

/* 小屏手机（≤480px）：标题与装饰细节进一步收敛 */
@media (max-width: 480px) {
  .svc-side { padding: 24px 18px; min-height: 176px; }
  .svc-side h3 { font-size: 18.5px; }
  .svc-side .en { font-size: 11px; letter-spacing: .1em; }
  .svc-side::after { width: 120px; height: 120px; border-width: 18px; right: -34px; bottom: -34px; }
  .svc-main { padding: 20px 16px 22px; }
  .svc-main h4 { font-size: 13.5px; letter-spacing: .06em; }
  .svc-items li { padding-left: 18px; font-size: 13.5px; }
}