/* 收费标准 / 帮助中心 — 与官网同一套企业视觉 */

.tool-page {
  background: var(--c-bg-alt, #f4f6fa);
}

.tool-page .page-hero {
  text-align: left;
  padding: 56px 0 40px;
  min-height: 180px;
}
.tool-page .page-hero .container {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.page-hero-kicker {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #9ec0ff;
  margin-bottom: 10px;
}

.nav-links a.active {
  color: var(--c-primary, #0f2c66);
  font-weight: 600;
}

.loading-tip,
.empty-tip {
  text-align: center;
  color: var(--c-ink-2, #5c6778);
  padding: 48px 0;
  font-size: 15px;
}

/* ===== 收费标准 ===== */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
  align-items: stretch;
}
.plan-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--c-line, #e3e8f0);
  border-radius: 6px;
  padding: 36px 28px 28px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 10px rgba(9, 28, 66, 0.05);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(9, 28, 66, 0.08);
}
.plan-card.recommended {
  border-color: var(--c-primary, #0f2c66);
  box-shadow: 0 14px 36px rgba(15, 44, 102, 0.14);
  padding-top: 44px;
}
.plan-badge {
  position: absolute;
  top: 0;
  left: 0;
  right: auto;
  background: var(--c-primary, #0f2c66);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 0 0 6px 0;
}
.plan-name {
  font-size: 22px;
  margin: 0 0 8px;
  color: var(--c-ink, #1a2332);
  font-weight: 600;
}
.plan-sub {
  color: var(--c-ink-2, #5c6778);
  font-size: 14px;
  margin: 0 0 22px;
  min-height: 20px;
  line-height: 1.6;
}
.plan-price {
  margin-bottom: 22px;
  display: flex;
  align-items: baseline;
  gap: 4px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--c-line, #e3e8f0);
}
.plan-price .price-cur {
  font-size: 16px;
  color: var(--c-primary, #0f2c66);
  font-weight: 600;
}
.plan-price .price-amount {
  font-size: 40px;
  font-weight: 600;
  color: var(--c-primary-dark, #091c42);
  line-height: 1;
  letter-spacing: -.03em;
}
.plan-price .price-unit {
  font-size: 14px;
  color: var(--c-ink-2, #5c6778);
}
.plan-price .price-free {
  font-size: 32px;
  font-weight: 600;
  color: var(--c-primary, #0f2c66);
}
.plan-features {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  flex: 1;
}
.plan-features li {
  position: relative;
  padding: 10px 0 10px 22px;
  color: #3d4758;
  font-size: 14px;
  border-bottom: 1px solid #eef2f7;
}
.plan-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 8px;
  border: 2px solid var(--c-primary, #0f2c66);
  border-radius: 50%;
}
.plan-btn { margin-top: auto; border-radius: 4px; }
.plan-note {
  margin-top: 32px;
  text-align: center;
  color: var(--c-ink-2, #5c6778);
  font-size: 13px;
  line-height: 1.85;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 帮助中心 ===== */
.help-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}
.help-sidebar {
  background: #fff;
  border: 1px solid var(--c-line, #e3e8f0);
  border-radius: 6px;
  padding: 8px;
  position: sticky;
  top: 100px;
  box-shadow: 0 2px 10px rgba(9, 28, 66, 0.05);
}
.help-side-title {
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-primary, #0f2c66);
  padding: 14px 16px 12px;
  border-bottom: 1px solid #eef2f7;
  margin-bottom: 6px;
}
.help-menu {
  list-style: none;
  padding: 0 0 8px;
  margin: 0;
}
.help-menu li { margin: 0; }
.help-menu a {
  display: block;
  padding: 11px 16px;
  color: var(--c-ink-2, #5c6778);
  text-decoration: none;
  border-radius: 0;
  font-size: 14px;
  border-left: 3px solid transparent;
  transition: background 0.15s, color 0.15s;
}
.help-menu a:hover {
  background: #f5f8fc;
  color: var(--c-primary, #0f2c66);
}
.help-menu a.active {
  background: #edf2fa;
  color: var(--c-primary, #0f2c66);
  font-weight: 600;
  border-left-color: var(--c-primary, #0f2c66);
}
.help-menu-loading,
.help-menu-empty {
  color: var(--c-ink-2, #5c6778);
  padding: 12px 16px;
  font-size: 14px;
}

.help-content { min-width: 0; }
.help-article {
  background: #fff;
  border: 1px solid var(--c-line, #e3e8f0);
  border-radius: 6px;
  padding: 36px 40px;
  box-shadow: 0 2px 10px rgba(9, 28, 66, 0.05);
  min-height: 240px;
}
.article-title {
  font-size: 26px;
  color: var(--c-ink, #1a2332);
  margin: 0 0 10px;
  font-weight: 600;
}
.article-summary {
  color: var(--c-ink-2, #5c6778);
  margin: 0 0 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid #eef2f7;
  font-size: 15px;
  line-height: 1.7;
}
.article-body {
  color: #2c3544;
  line-height: 1.9;
  font-size: 15.5px;
}
.article-body h2 { font-size: 20px; color: var(--c-primary-dark, #091c42); margin: 28px 0 12px; font-weight: 600; }
.article-body h3 { font-size: 17px; color: var(--c-primary, #0f2c66); margin: 22px 0 10px; }
.article-body p { margin: 0 0 14px; }
.article-body ul,
.article-body ol { padding-left: 22px; margin: 0 0 14px; }
.article-body li { margin-bottom: 8px; }
.article-body img { max-width: 100%; border-radius: 4px; }
.article-body a { color: var(--c-primary-2, #1e4ea0); }
.article-body table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.article-body td, .article-body th { border: 1px solid var(--c-line, #e3e8f0); padding: 8px 12px; }

.feedback-box {
  background: #fff;
  border: 1px solid var(--c-line, #e3e8f0);
  border-radius: 6px;
  padding: 32px 40px;
  margin-top: 22px;
  box-shadow: 0 2px 10px rgba(9, 28, 66, 0.05);
}
.feedback-box h3 {
  font-size: 18px;
  color: var(--c-ink, #1a2332);
  margin: 0 0 6px;
  font-weight: 600;
}
.feedback-tip {
  color: var(--c-ink-2, #5c6778);
  font-size: 14px;
  margin: 0 0 22px;
}
.feedback-form .ff-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}
.feedback-form .ff-row label {
  width: 80px;
  flex-shrink: 0;
  padding-top: 10px;
  color: var(--c-ink-2, #5c6778);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
}
.feedback-form input,
.feedback-form select,
.feedback-form textarea {
  flex: 1;
  border: 1px solid #d5deea;
  border-radius: 4px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  color: #2d3748;
  background: #fff;
}
.feedback-form textarea { resize: vertical; min-height: 110px; }
.feedback-form input:focus,
.feedback-form select:focus,
.feedback-form textarea:focus {
  outline: none;
  border-color: var(--c-primary, #0f2c66);
  box-shadow: 0 0 0 3px rgba(15, 44, 102, .08);
}
.ff-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-left: 96px;
}
.ff-msg { font-size: 14px; color: var(--c-ink-2, #5c6778); }
.ff-msg.success { color: #1f7a4d; }
.ff-msg.error { color: var(--c-accent, #b4232c); }

@media (max-width: 1000px) {
  .plan-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
}
@media (max-width: 860px) {
  .help-layout { grid-template-columns: 1fr; }
  .help-sidebar { position: static; }
  .help-article, .feedback-box { padding: 24px 20px; }
  .feedback-form .ff-row { flex-direction: column; gap: 6px; }
  .feedback-form .ff-row label { width: auto; padding-top: 0; }
  .ff-actions { padding-left: 0; }
  .tool-page .page-hero h1 { font-size: 26px; }
}