/* ========== 帮助中心 / 关于我们 · 全新蓝色布局 ========== */
.help-center-v2 {
  --hc-blue: #124db2;
  --hc-deep: #06387a;
  --hc-mid: #1a66d4;
  --hc-soft: rgba(18, 77, 178, 0.1);
  --hc-ink: #142033;
  --hc-muted: #5c6b82;
  --hc-line: #d7e3f5;
  --hc-bg: #f3f7fc;
  --hc-card: #ffffff;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--hc-ink);
  background: var(--hc-bg);
  padding-bottom: 56px;
  overflow: hidden;
}

.help-center-v2 .wst-container {
  width: 1200px;
  max-width: 94%;
  margin: 0 auto;
  box-sizing: border-box;
}

/* —— Hero —— */
.help-center-v2 .hcv2-hero {
  position: relative;
  padding: 52px 0 64px;
  color: #fff;
  background: linear-gradient(125deg, #041c45 0%, #06387a 38%, #124db2 72%, #1a66d4 100%);
  overflow: hidden;
}

.help-center-v2 .hcv2-hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(ellipse 75% 80% at 75% 40%, #000 12%, transparent 72%);
  opacity: 0.7;
}

.help-center-v2 .hcv2-hero__bg::after {
  content: "";
  position: absolute;
  right: -8%;
  top: -30%;
  width: 48%;
  height: 160%;
  background: linear-gradient(120deg, transparent, rgba(120, 190, 255, 0.18), transparent);
  transform: skewX(-14deg);
  animation: hcv2-beam 9s ease-in-out infinite alternate;
}

@keyframes hcv2-beam {
  from { opacity: 0.5; transform: skewX(-14deg) translateX(0); }
  to { opacity: 1; transform: skewX(-14deg) translateX(-20px); }
}

.help-center-v2 .hcv2-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
  animation: hcv2-rise 0.55s ease-out both;
}

@keyframes hcv2-rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.help-center-v2 .hcv2-hero__brand {
  margin: 0 0 10px;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.help-center-v2 .hcv2-hero__title {
  margin: 0 0 12px;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.25;
  color: #fff;
}

.help-center-v2 .hcv2-hero__lead {
  margin: 0 0 18px;
  font-size: 14px;
  color: rgba(210, 228, 255, 0.88);
  letter-spacing: 0.08em;
}

.help-center-v2 .hcv2-bc {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: rgba(200, 220, 245, 0.75);
}

.help-center-v2 .hcv2-bc a {
  color: rgba(230, 240, 255, 0.9);
  text-decoration: none;
}

.help-center-v2 .hcv2-bc a:hover {
  color: #fff;
  text-decoration: underline;
}

.help-center-v2 .hcv2-bc__sep {
  opacity: 0.55;
}

/* —— 双栏主体 —— */
.help-center-v2 .hcv2-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 24px;
  margin-top: -28px;
  position: relative;
  z-index: 2;
  align-items: start;
}

/* 左侧导航 */
.help-center-v2 .hcv2-aside {
  background: var(--hc-card);
  border: 1px solid rgba(18, 77, 178, 0.12);
  box-shadow: 0 14px 36px rgba(6, 56, 122, 0.1);
  overflow: hidden;
}

.help-center-v2 .hcv2-aside__head {
  padding: 22px 20px 16px;
  background: linear-gradient(180deg, #f7faff 0%, #fff 100%);
  border-bottom: 1px solid var(--hc-line);
}

.help-center-v2 .hcv2-aside__head h2 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 800;
  color: var(--hc-ink);
  letter-spacing: 0.04em;
}

.help-center-v2 .hcv2-aside__head p {
  margin: 0;
  font-size: 12px;
  color: var(--hc-muted);
  line-height: 1.5;
}

.help-center-v2 .hcv2-nav {
  padding: 8px 0 12px;
}

.help-center-v2 #parent {
  margin: 0;
  padding: 0;
  list-style: none;
}

.help-center-v2 #parent > li {
  display: block;
  line-height: 1.4;
  border-bottom: 1px solid #eef3f9;
}

.help-center-v2 #parent > li > span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: transparent;
  border: none;
  font-size: 14px;
  font-weight: 700;
  color: var(--hc-ink);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.help-center-v2 #parent > li > span:hover {
  background: rgba(18, 77, 178, 0.05);
  color: var(--hc-blue);
}

.help-center-v2 .hcv2-caret {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-right: 2px solid #8aa0bc;
  border-bottom: 2px solid #8aa0bc;
  transform: rotate(45deg);
  transition: transform 0.2s, border-color 0.2s;
  flex-shrink: 0;
  margin-left: 10px;
}

.help-center-v2 .h-show > span {
  color: var(--hc-blue);
  background: rgba(18, 77, 178, 0.06);
}

.help-center-v2 .h-show .hcv2-caret {
  transform: rotate(-135deg);
  border-color: var(--hc-blue);
}

/* 覆盖 articles.css 里旧的三角 p */
.help-center-v2 #parent > li > span > p,
.help-center-v2 .h-hide p,
.help-center-v2 .h-show p {
  display: none !important;
}

.help-center-v2 .h-list {
  display: none;
  margin: 0;
  padding: 6px 0 12px;
  list-style: none;
  border: none;
  background: #f8fbff;
}

.help-center-v2 .h-show .h-list {
  display: block;
}

.help-center-v2 .h-hide .h-list {
  display: none;
}

.help-center-v2 .h-list li {
  width: auto;
  margin: 0;
  padding: 0;
  line-height: 1.4;
  background: none;
  border: none;
}

.help-center-v2 .h-list a {
  display: block;
  padding: 10px 18px 10px 28px;
  font-size: 13px;
  color: var(--hc-muted);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.help-center-v2 .h-list a:hover {
  color: var(--hc-blue);
  background: rgba(18, 77, 178, 0.04);
}

.help-center-v2 .h-list .h-curr,
.help-center-v2 .h-list li.h-curr {
  margin: 0;
  background: none;
  border: none;
  color: inherit;
  font-weight: inherit;
}

.help-center-v2 .h-list .h-curr a,
.help-center-v2 .h-list a:hover li {
  color: var(--hc-blue);
  font-weight: 700;
  background: rgba(18, 77, 178, 0.08);
  border-left-color: var(--hc-blue);
}

/* 右侧正文 */
.help-center-v2 .hcv2-main {
  background: var(--hc-card);
  border: 1px solid rgba(18, 77, 178, 0.1);
  box-shadow: 0 14px 36px rgba(6, 56, 122, 0.08);
  min-height: 420px;
  padding: 0 0 8px;
}

.help-center-v2 .hcv2-article-head {
  padding: 28px 36px 18px;
  border-bottom: 1px solid var(--hc-line);
  background: linear-gradient(180deg, #f7faff 0%, #fff 100%);
}

.help-center-v2 .hcv2-article-head__eyebrow {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--hc-blue);
}

.help-center-v2 .hcv2-article-head h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--hc-ink);
  text-align: left;
  line-height: 1.35;
}

.help-center-v2 .h-content {
  width: auto !important;
  max-width: none;
  min-height: 280px;
  padding: 28px 36px !important;
  text-indent: 0 !important;
  font-size: 15px;
  line-height: 1.85;
  color: #2a3548;
  font-family: inherit !important;
}

.help-center-v2 .h-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 12px 0;
}

.help-center-v2 .h-content h1,
.help-center-v2 .h-content h2,
.help-center-v2 .h-content h3 {
  text-align: left;
  color: var(--hc-ink);
  margin: 1.2em 0 0.6em;
  font-weight: 800;
}

.help-center-v2 .h-content p {
  margin: 0 0 14px;
}

.help-center-v2 .h-content a {
  color: var(--hc-blue);
}

.help-center-v2 .h-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
}

.help-center-v2 .h-content table td,
.help-center-v2 .h-content table th {
  border: 1px solid var(--hc-line);
  padding: 8px 10px;
}

/* 反馈区 */
.help-center-v2 .h-record {
  margin: 8px 0px 28px;
  padding: 22px 0px;
  background: linear-gradient(105deg, #06387a 0%, #124db2 55%, #1a66d4 100%);
  color: #fff;
  text-align: center;
}

.help-center-v2 .hcv2-feedback__q {
  margin: 0 0 14px;
  font-size: 14px;
  color: rgba(230, 240, 255, 0.95);
}

.help-center-v2 .hcv2-feedback__btns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.help-center-v2 .h-button {
  min-width: 140px;
  height: 42px;
  padding: 0 20px;
  border: none;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, filter 0.15s, background 0.15s;
}

.help-center-v2 .h-button--ok {
  background: #fff;
  color: var(--hc-deep);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
}

.help-center-v2 .h-button--ok:hover {
  transform: translateY(-1px);
  color: var(--hc-blue);
}

.help-center-v2 .h-button--no {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.55);
}

.help-center-v2 .h-button--no:hover {
  background: rgba(255, 255, 255, 0.18);
}

.help-center-v2 .h-record:not(:has(.hcv2-feedback__btns)) {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

/* 空状态 */
.help-center-v2 .hcv2-empty {
  padding: 80px 36px;
  text-align: center;
}

.help-center-v2 .hcv2-empty__title {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--hc-ink);
}

.help-center-v2 .hcv2-empty__desc {
  margin: 0;
  font-size: 14px;
  color: var(--hc-muted);
}

@media (max-width: 960px) {
  .help-center-v2 .hcv2-layout {
    grid-template-columns: 1fr;
    margin-top: -20px;
  }

  .help-center-v2 .hcv2-aside {
    order: 0;
  }

  .help-center-v2 .hcv2-main {
    order: 1;
  }
}

@media (max-width: 640px) {
  .help-center-v2 .hcv2-hero {
    padding: 36px 0 48px;
  }

  .help-center-v2 .hcv2-hero__brand {
    font-size: 22px;
  }

  .help-center-v2 .hcv2-hero__title {
    font-size: 24px;
  }

  .help-center-v2 .hcv2-article-head,
  .help-center-v2 .h-content {
    padding-left: 18px !important;
    padding-right: 18px !important;
  }

  .help-center-v2 .h-record {
    margin: 8px 14px 20px;
    padding: 18px 14px;
  }

  .help-center-v2 .h-button {
    width: 100%;
  }
}