/* ============================================
   AIC 售后支持中心样式
   service.html
   ============================================ */

/* ---------- Service Hero ---------- */
.service-hero {
  background: var(--ink);
  color: #fff;
  padding: 80px 0 100px;
  position: relative;
  overflow: hidden;
}

.service-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 30%, rgba(0, 168, 107, 0.18), transparent 55%),
    radial-gradient(ellipse at 10% 80%, rgba(0, 82, 217, 0.25), transparent 55%),
    linear-gradient(135deg, #0A1628 0%, #1B2A41 100%);
}

.service-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.05;
  background-image:
    linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size: 80px 80px;
}

.sh-inner {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.sh-eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--accent-bright);
  letter-spacing: 0.2em;
  margin-bottom: 18px;
  text-transform: uppercase;
}

.service-hero h1 {
  font-family: "Barlow Condensed", "Noto Sans SC", sans-serif;
  font-size: 60px;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.service-hero h1 .blue { color: var(--accent-bright); }

.service-hero .lead {
  font-size: 16.5px;
  color: #B8C5DD;
  max-width: 720px;
  line-height: 1.75;
  margin-bottom: 44px;
}

.sla-row {
  display: grid;
  grid-template-columns: repeat(4, max-content);
  gap: 56px;
}

.sla-item .sla-val {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 40px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.sla-item .sla-val small {
  font-size: 17px;
  font-weight: 600;
  color: var(--accent-bright);
  margin-left: 2px;
}

.sla-item .sla-lbl {
  font-family: "JetBrains Mono", monospace;
  font-size: 11.5px;
  color: #7A8AA8;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ---------- Promise Section ---------- */
.promise-section {
  padding: 100px 0;
  background: #fff;
}

.promise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.promise-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px 32px 28px;
  transition: all var(--t-base);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  min-height: 280px;
}

.promise-card:hover {
  border-color: var(--ink);
  background: #fff;
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.pc-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 11.5px;
  color: var(--mute);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.pc-icon {
  width: 52px;
  height: 52px;
  background: var(--ink);
  color: #fff;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.promise-card h3 {
  font-family: "Barlow Condensed", "Noto Sans SC", sans-serif;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.pc-desc {
  font-size: 14px;
  color: var(--steel);
  line-height: 1.75;
}

.pc-meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--mute);
  letter-spacing: 0.1em;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  text-transform: uppercase;
}

.pc-meta strong {
  color: var(--accent);
  font-weight: 700;
}

/* ---------- Entries Section (5 大入口) ---------- */
.entries-section {
  padding: 100px 0;
  background: var(--bg);
}

.entries-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.entry-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--t-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  color: inherit;
}

.entry-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.entry-card.featured {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  border-color: var(--accent-deep);
  color: #fff;
}

.entry-card.featured:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-accent);
}

.ec-icon {
  width: 56px;
  height: 56px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-base);
}

.entry-card.featured .ec-icon {
  background: rgba(255,255,255,.18);
  color: #fff;
}

.entry-card h4 {
  font-size: 17px;
  font-weight: 600;
  margin-top: 4px;
}

.entry-card p {
  font-size: 13px;
  color: var(--mute);
  line-height: 1.6;
}

.entry-card.featured p { color: rgba(255,255,255,.85); }

/* ---------- FAQ Section ---------- */
.faq-section {
  padding: 100px 0;
  background: #fff;
}

.faq-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.faq-tab {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--steel);
  cursor: pointer;
  transition: all var(--t-fast);
}

.faq-tab:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.faq-tab.active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.faq-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  transition: all var(--t-fast);
}

.faq-item:hover { border-color: var(--steel); }

.faq-item.open {
  background: #fff;
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.faq-q {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  cursor: pointer;
}

.faq-q-text {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
}

.q-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.1em;
  flex-shrink: 0;
}

.q-content {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.5;
}

.faq-q-toggle {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--mute);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--t-base);
}

.faq-item.open .faq-q-toggle {
  transform: rotate(45deg);
  color: var(--accent);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--t-slow);
}

.faq-item.open .faq-a { max-height: 600px; }

.faq-a-inner {
  padding: 0 24px 22px 60px;
  font-size: 14px;
  color: var(--steel);
  line-height: 1.85;
}

.faq-a-inner strong { color: var(--ink); font-weight: 600; }

.faq-a-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.faq-a-tags span {
  font-size: 11.5px;
  color: var(--mute);
  background: var(--bg);
  padding: 3px 9px;
  border-radius: 4px;
}

/* ---------- Split Section (Parts + Videos) ---------- */
.split-section {
  padding: 100px 0;
  background: var(--bg);
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.split-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 30px 32px;
}

.split-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 16px;
}

.split-panel-head h3 {
  font-family: "Barlow Condensed", "Noto Sans SC", sans-serif;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.split-panel-head .more {
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
}

/* Parts list */
.parts-list {
  display: flex;
  flex-direction: column;
}

.part-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.part-row:last-child { border-bottom: none; }

.part-icon {
  width: 40px;
  height: 40px;
  background: var(--bg);
  color: var(--steel);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.part-info {
  flex: 1;
  min-width: 0;
}

.part-info strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 3px;
}

.part-info span {
  display: block;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--mute);
  letter-spacing: 0.04em;
}

/* Videos list */
.videos-list {
  display: flex;
  flex-direction: column;
}

.video-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: opacity var(--t-fast);
}

.video-row:last-child { border-bottom: none; }
.video-row:hover { opacity: 0.7; }

.video-row-thumb {
  width: 64px;
  height: 40px;
  background: linear-gradient(135deg, #1B2A41 0%, #0A1628 100%);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.play-mini {
  width: 22px;
  height: 22px;
  background: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
}

.video-row-info {
  flex: 1;
  min-width: 0;
}

.video-row-info strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 3px;
}

.video-row-info .meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--mute);
  letter-spacing: 0.04em;
}

/* ---------- Repair Section ---------- */
.repair-section {
  padding: 100px 0;
  background: #fff;
}

.repair-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.repair-info .eyebrow { margin-bottom: 14px; }

.repair-info h2 {
  font-family: "Barlow Condensed", "Noto Sans SC", sans-serif;
  font-size: 44px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 18px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.repair-info p {
  font-size: 15px;
  color: var(--steel);
  line-height: 1.75;
  margin-bottom: 36px;
}

.repair-process {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.rp-step {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 18px 22px;
  background: var(--bg);
  border-radius: var(--r);
  border-left: 3px solid var(--accent);
}

.rp-step-num {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 26px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.02em;
  flex-shrink: 0;
  width: 36px;
}

.rp-step-info strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}

.rp-step-info span {
  font-size: 13px;
  color: var(--mute);
  line-height: 1.65;
}

/* Repair form card */
.repair-form-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px 38px;
}

.repair-form-card h3 {
  font-family: "Barlow Condensed", "Noto Sans SC", sans-serif;
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--ink);
}

.form-sub {
  font-size: 13px;
  color: var(--mute);
  margin-bottom: 24px;
}

.form-row {
  margin-bottom: 16px;
}

.form-row.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-row label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 7px;
  letter-spacing: 0.02em;
}

.req { color: var(--danger); }

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 11px 14px;
  font-size: 13.5px;
  color: var(--ink);
  font-family: inherit;
  transition: border-color var(--t-fast);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-row textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}

.file-upload {
  background: #fff;
  border: 2px dashed var(--line);
  border-radius: var(--r-sm);
  padding: 22px 16px;
  text-align: center;
  font-size: 13px;
  color: var(--mute);
  cursor: pointer;
  transition: all var(--t-fast);
}

.file-upload:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.submit-btn {
  width: 100%;
  padding: 14px;
  font-size: 14.5px;
  margin-top: 8px;
}

.form-tip {
  font-size: 12px;
  color: var(--mute);
  text-align: center;
  margin-top: 14px;
  line-height: 1.6;
}

/* ---------- Hotline Section ---------- */
.hotline-section {
  padding: 90px 0 110px;
  background: var(--bg);
}

.hotline-card {
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-2) 100%);
  color: #fff;
  border-radius: var(--r-xl);
  padding: 56px 56px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.hotline-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 50%, rgba(0,82,217,.3), transparent 55%);
  pointer-events: none;
}

.hotline-info { position: relative; }

.hotline-info .label {
  font-family: "JetBrains Mono", monospace;
  font-size: 11.5px;
  color: var(--accent-bright);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.hotline-info .number {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 56px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}

.hotline-info p {
  font-size: 14px;
  color: #B8C5DD;
  line-height: 1.7;
}

.hotline-actions {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hotline-actions .btn-primary {
  background: #fff;
  color: var(--ink);
}

.hotline-actions .btn-primary:hover {
  background: #F0F2F5;
  color: var(--ink);
}

.hotline-actions .btn-ghost {
  color: #fff;
  border-color: rgba(255,255,255,.3);
}

.hotline-actions .btn-ghost:hover {
  background: #fff;
  color: var(--ink);
  border-color: #fff;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .service-hero h1 { font-size: 44px; }
  .sla-row { gap: 36px; }
  .promise-grid { grid-template-columns: 1fr; }
  .entries-grid { grid-template-columns: repeat(3, 1fr); }
  .split-grid { grid-template-columns: 1fr; }
  .repair-grid { grid-template-columns: 1fr; gap: 40px; }
  .hotline-card { grid-template-columns: 1fr; padding: 40px 32px; }
}

@media (max-width: 640px) {
  .service-hero { padding: 56px 0 80px; }
  .service-hero h1 { font-size: 32px; }
  .sla-row { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .promise-section, .entries-section, .faq-section, .split-section, .repair-section { padding: 70px 0; }
  .entries-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row.split { grid-template-columns: 1fr; }
  .repair-form-card { padding: 28px 24px; }
  .hotline-info .number { font-size: 40px; }
  .faq-q { padding: 16px 18px; gap: 12px; }
  .faq-a-inner { padding: 0 18px 18px 46px; }
}