/* ===================================================
   研枢 Nexus Scholar — 子页面样式（能力 / 应用指南 / 效果展示 / 流程）
   依赖 styles.css 的变量与顶栏、页脚样式
   =================================================== */

body.pg {
  background: #fff;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.pg-wrap { width: 100%; max-width: 1000px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶栏：品牌 + 胶囊导航 ---------- */
.pg-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex: none;
}
.pg-brand .brand-mark { width: 25px; height: 25px; color: var(--primary); }
.pg-brand .brand-text b { font-size: 13.5px; letter-spacing: 0.1em; }
.pg-brand .brand-text i { font-size: 7px; letter-spacing: 0.18em; }

.pg-top .nav-toggle { display: none; }

/* ---------- HERO ---------- */
.pg-hero {
  position: relative;
  overflow: hidden;
  padding: 52px 0 44px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #FBFBFE 0%, #FFFFFF 76%);
}

.pg-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(20, 20, 26, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20, 20, 26, 0.045) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(120% 78% at 78% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 78% at 78% 0%, #000 0%, transparent 72%);
  pointer-events: none;
}

.pg-hero::after {
  content: "";
  position: absolute;
  width: 460px;
  height: 460px;
  right: -120px;
  top: -220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(107, 78, 255, 0.16), transparent 66%);
  filter: blur(10px);
  pointer-events: none;
}

.pg-hero .pg-wrap { position: relative; z-index: 1; }

.pg-crumb {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11.5px;
  color: var(--text-3);
}
.pg-crumb a { transition: color 0.18s; }
.pg-crumb a:hover { color: var(--text); }
.pg-crumb i { font-style: normal; color: #D2D2DC; }

.pg-kicker {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 22px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
}
.pg-kicker span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(107, 78, 255, 0.13);
}

.pg-hero h1 {
  font-size: clamp(27px, 4.4vw, 43px);
  line-height: 1.2;
  letter-spacing: -0.035em;
  margin-top: 12px;
  max-width: 19em;
  font-weight: 700;
}

.pg-hero h1 em {
  font-style: normal;
  background: linear-gradient(112deg, #6B4EFF 0%, #8E63FF 46%, #17A877 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.pg-lead {
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-2);
  margin-top: 16px;
  max-width: 660px;
}

.pg-facts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }

.pg-fact {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  font-size: 11.5px;
  color: var(--text-2);
}
.pg-fact b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }

/* ---------- 章节 ---------- */
.pg-sec { padding: 48px 0 4px; }
.pg-sec.tight { padding-top: 34px; }

.pg-sec-head { max-width: 720px; }

.pg-idx {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}
.pg-idx::after {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--line-2);
}

.pg-sec h2 {
  font-size: clamp(20px, 2.7vw, 27px);
  letter-spacing: -0.025em;
  margin-top: 9px;
}

.pg-sec .pg-lead { margin-top: 10px; font-size: 13px; }

/* ---------- 卡片网格 ---------- */
.pg-grid { display: grid; gap: 12px; margin-top: 22px; }
.pg-grid.c2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.pg-grid.c3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pg-grid.c4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.pg-card {
  position: relative;
  padding: 18px 18px 17px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
}
.pg-card:hover {
  border-color: var(--primary-border);
  transform: translateY(-2px);
  box-shadow: 0 18px 38px -30px rgba(20, 20, 26, 0.55);
}

.pg-card .c-ico {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 12px;
}
.pg-card .c-ico svg { width: 18px; height: 18px; }
.pg-card .c-ico.mint { background: var(--mint-soft); color: var(--mint); }
.pg-card .c-ico.ink { background: #F2F2F6; color: var(--primary); }
.pg-card .c-ico.orange { background: var(--orange-soft); color: var(--orange); }

.pg-card h3 { font-size: 14.5px; font-weight: 600; letter-spacing: -0.01em; }
.pg-card p { font-size: 12.5px; line-height: 1.78; color: var(--text-2); margin-top: 7px; }

.pg-card ul { list-style: none; margin-top: 11px; display: flex; flex-direction: column; gap: 6px; }
.pg-card ul li {
  position: relative;
  padding-left: 14px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-2);
}
.pg-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
}

.c-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 13px;
  padding: 3px 9px;
  border-radius: 999px;
  background: #F5F5F9;
  font-size: 10.5px;
  color: var(--text-3);
}

/* ---------- 表格 ---------- */
.pg-tbwrap {
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
}

.pg-tb { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.pg-tb th {
  text-align: left;
  padding: 12px 16px;
  background: #FAFAFC;
  font-weight: 600;
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--text-2);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.pg-tb td {
  padding: 13px 16px;
  border-bottom: 1px solid #F1F1F5;
  color: var(--text-2);
  line-height: 1.7;
  vertical-align: top;
}
.pg-tb tr:last-child td { border-bottom: 0; }
.pg-tb tbody tr:hover td { background: #FCFCFF; }
.pg-tb td b { color: var(--text); font-weight: 600; }
.pg-tb .mono { font-variant-numeric: tabular-nums; }
.pg-tb .nowrap { white-space: nowrap; }

.pg-tbnote { font-size: 11.5px; color: var(--text-3); margin-top: 10px; line-height: 1.7; }

/* ---------- 文档样例（纸面） ---------- */
.pg-doc {
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  overflow: hidden;
  box-shadow: 0 24px 60px -52px rgba(20, 20, 26, 0.6);
}

.doc-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px 16px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #FCFCFF, #fff);
}
.doc-head .dh-kicker { font-size: 10.5px; letter-spacing: 0.1em; color: var(--text-3); }
.doc-head h3 { font-size: 15px; margin-top: 5px; letter-spacing: -0.015em; }
.doc-badge {
  flex: none;
  font-size: 10.5px;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 4px 10px;
  white-space: nowrap;
}

.doc-body { padding: 4px 20px 18px; }

/* 目录行 */
.doc-ol { list-style: none; }
.doc-ol li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 14px;
  padding: 11px 0;
  border-bottom: 1px dashed #EEEEF3;
}
.doc-ol li:last-child { border-bottom: 0; }
.doc-ol b { font-size: 13px; font-weight: 600; color: var(--text); }
.doc-ol i {
  font-style: normal;
  font-size: 11.5px;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  background: var(--accent-soft);
  border-radius: 6px;
  padding: 1px 7px;
  align-self: start;
}
.doc-ol span { grid-column: 1 / -1; font-size: 11.5px; color: var(--text-3); line-height: 1.7; }

/* 指标表 */
.doc-tb { width: 100%; border-collapse: collapse; font-size: 12px; }
.doc-tb th, .doc-tb td { padding: 10px 8px; text-align: left; border-bottom: 1px solid #F1F1F5; }
.doc-tb th { font-size: 10.5px; color: var(--text-3); font-weight: 600; letter-spacing: 0.06em; }
.doc-tb td b { color: var(--text); font-variant-numeric: tabular-nums; }
.doc-tb tr:last-child td { border-bottom: 0; }

/* 路线卡 */
.doc-routes { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }
.doc-route {
  padding: 14px 15px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #FCFCFE;
}
.doc-route.on { border-color: var(--primary-border); background: linear-gradient(180deg, #FBF9FF, #fff); }
.doc-route .dr-top { display: flex; align-items: center; gap: 8px; }
.doc-route .dr-tag {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #F1F1F5;
  color: var(--text-2);
}
.doc-route.on .dr-tag { background: var(--accent); color: #fff; }
.doc-route .dr-top b { font-size: 13px; font-weight: 600; }
.doc-route p { font-size: 12px; color: var(--text-2); line-height: 1.75; margin-top: 7px; }
.doc-route .dr-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 9px; }
.doc-route .dr-meta span {
  font-size: 10.5px;
  color: var(--text-3);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1px 7px;
  background: #fff;
}

/* PPT 页序 */
.doc-slides { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px 18px; }
.doc-slides li { display: flex; gap: 10px; padding: 9px 0; border-bottom: 1px dashed #EEEEF3; }
.doc-slides b {
  font-size: 10.5px;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
  padding-top: 2px;
  flex: none;
}
.doc-slides span { font-size: 12px; color: var(--text-2); line-height: 1.65; }

/* 综述聚类 */
.doc-cluster { display: flex; flex-direction: column; gap: 9px; }
.doc-cluster .dc-row {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 14px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #FAFAFC;
  border: 1px solid #F1F1F5;
}
.doc-cluster b { font-size: 12.5px; font-weight: 600; }
.doc-cluster span { font-size: 11.5px; color: var(--text-2); line-height: 1.7; }

/* 中英对照 */
.doc-bi { display: flex; flex-direction: column; gap: 12px; }
.doc-bi .db-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding-bottom: 12px; border-bottom: 1px dashed #EEEEF3; }
.doc-bi .db-row:last-child { border-bottom: 0; padding-bottom: 0; }
.doc-bi p { font-size: 12px; line-height: 1.8; }
.doc-bi .en { color: var(--text-2); font-family: Georgia, "Times New Roman", serif; }
.doc-bi .cn { color: var(--text-3); }
.doc-bi .db-t { font-size: 10px; letter-spacing: 0.1em; color: var(--text-3); margin-bottom: 4px; }

/* ---------- 对比（正 / 反例） ---------- */
.pg-cmp { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 20px; }
.cmp-box {
  border: 1px solid var(--line);
  border-radius: 15px;
  padding: 16px 17px;
  background: #fff;
}
.cmp-box h4 {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.cmp-box h4 i {
  font-style: normal;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 10px;
  color: #fff;
  flex: none;
}
.cmp-box.no h4 i { background: #E5484D; }
.cmp-box.ok h4 i { background: var(--mint); }
.cmp-box.no { background: #FFFCFC; border-color: #F6E5E6; }
.cmp-box.ok { background: #FBFFFD; border-color: #DDF3EA; }
.cmp-box p { font-size: 12px; line-height: 1.8; color: var(--text-2); margin-top: 9px; }
.cmp-box .cmp-why { font-size: 11.5px; color: var(--text-3); margin-top: 9px; padding-top: 9px; border-top: 1px dashed var(--line); }

/* ---------- 时间线 ---------- */
.pg-tl { position: relative; margin-top: 26px; padding-left: 30px; }
.pg-tl::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 1.5px;
  background: linear-gradient(180deg, rgba(107, 78, 255, 0.45), rgba(107, 78, 255, 0.08) 70%, transparent);
}
.tl-item { position: relative; padding: 0 0 26px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 4px;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: #fff;
  border: 1.5px solid var(--primary-border);
  box-shadow: 0 0 0 4px #fff;
}
.tl-item.on::before {
  border-color: var(--accent);
  background: radial-gradient(circle at 50% 50%, var(--accent) 42%, #fff 46%);
}
.tl-step { font-size: 10.5px; letter-spacing: 0.14em; color: var(--accent); font-weight: 600; }
.tl-item h3 { font-size: 15px; margin-top: 5px; letter-spacing: -0.015em; }
.tl-item .tl-time {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10.5px;
  color: var(--text-3);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 9px;
  margin-left: 8px;
  vertical-align: 2px;
  font-weight: 400;
}
.tl-item p { font-size: 12.5px; line-height: 1.85; color: var(--text-2); margin-top: 8px; max-width: 660px; }
.tl-item ul { list-style: none; margin-top: 9px; display: flex; flex-direction: column; gap: 5px; }
.tl-item ul li { position: relative; padding-left: 15px; font-size: 12px; color: var(--text-2); line-height: 1.7; }
.tl-item ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 1.5px;
  background: var(--accent);
  opacity: 0.45;
}

/* ---------- FAQ ---------- */
.pg-faq { margin-top: 22px; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 2px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
  transition: color 0.18s;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent); }
.faq-item summary .fq-ico {
  flex: none;
  width: 18px;
  height: 18px;
  position: relative;
}
.faq-item summary .fq-ico::before,
.faq-item summary .fq-ico::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--text-3);
  border-radius: 2px;
  transition: transform 0.24s var(--ease), background 0.2s;
}
.faq-item summary .fq-ico::before { width: 10px; height: 1.5px; transform: translate(-50%, -50%); }
.faq-item summary .fq-ico::after { width: 1.5px; height: 10px; transform: translate(-50%, -50%); }
.faq-item[open] summary { color: var(--accent); }
.faq-item[open] summary .fq-ico::before { background: var(--accent); }
.faq-item[open] summary .fq-ico::after { transform: translate(-50%, -50%) rotate(90deg); background: var(--accent); }
.faq-item p {
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--text-2);
  padding: 0 24px 18px 2px;
  max-width: 760px;
}
.faq-item p b { color: var(--text); }

/* ---------- 清单 ---------- */
.pg-check { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 20px; }
.chk {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-2);
  transition: border-color 0.18s, background 0.18s;
}
.chk:hover { border-color: var(--primary-border); }
.chk input { position: absolute; opacity: 0; width: 0; height: 0; }
.chk .chk-box {
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 3px;
  border-radius: 5px;
  border: 1.5px solid var(--line-2);
  background: #fff;
  position: relative;
  transition: all 0.18s;
}
.chk .chk-box::after {
  content: "";
  position: absolute;
  left: 4.5px;
  top: 1.5px;
  width: 4px;
  height: 7.5px;
  border: solid #fff;
  border-width: 0 1.6px 1.6px 0;
  transform: rotate(42deg) scale(0.6);
  opacity: 0;
  transition: all 0.16s;
}
.chk input:checked ~ .chk-box { background: var(--accent); border-color: var(--accent); }
.chk input:checked ~ .chk-box::after { opacity: 1; transform: rotate(42deg) scale(1); }
.chk:has(input:checked) { border-color: var(--primary-border); background: #FCFBFF; }
.chk:has(input:checked) span:last-child { color: var(--text); }

/* ---------- 提示条 ---------- */
.pg-note {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  margin-top: 20px;
  padding: 14px 16px;
  border: 1px solid var(--primary-border);
  border-radius: 13px;
  background: linear-gradient(180deg, #FBFAFF, #fff);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--text-2);
}
.pg-note b { color: var(--text); }
.pg-note .pn-ico {
  flex: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  margin-top: 1px;
}
.pg-note.warn { border-color: #F6E5E6; background: linear-gradient(180deg, #FFFCFC, #fff); }
.pg-note.warn .pn-ico { background: #E5484D; }

/* ---------- 术语表 ---------- */
.pg-gloss { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 20px; }
.gl-item {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #FCFCFE;
}
.gl-item b { display: block; font-size: 13px; font-weight: 600; }
.gl-item b i { font-style: normal; font-size: 10px; color: var(--text-3); letter-spacing: 0.08em; margin-left: 6px; }
.gl-item p { font-size: 12px; line-height: 1.75; color: var(--text-2); margin-top: 6px; }

/* ---------- CTA ---------- */
.pg-cta {
  position: relative;
  overflow: hidden;
  margin: 56px 0 0;
  padding: 40px 34px;
  border-radius: 24px;
  background: radial-gradient(120% 140% at 82% 0%, #2B2440 0%, #17161D 46%, #0F0E14 100%);
  color: #fff;
}
.pg-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(110% 90% at 90% 0%, #000, transparent 70%);
  mask-image: radial-gradient(110% 90% at 90% 0%, #000, transparent 70%);
  pointer-events: none;
}
.pg-cta::after {
  content: "";
  position: absolute;
  width: 340px;
  height: 340px;
  right: -90px;
  bottom: -180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(107, 78, 255, 0.5), transparent 66%);
  filter: blur(20px);
  pointer-events: none;
}
.pg-cta > * { position: relative; z-index: 1; }
.pg-cta .cta-kicker { font-size: 10.5px; letter-spacing: 0.18em; color: rgba(255, 255, 255, 0.5); }
.pg-cta h2 { font-size: clamp(20px, 2.8vw, 27px); margin-top: 10px; letter-spacing: -0.025em; color: #fff; }
.pg-cta p { font-size: 13px; line-height: 1.85; color: rgba(255, 255, 255, 0.62); margin-top: 10px; max-width: 520px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 40px;
  padding: 0 20px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  background: #fff;
  color: #17161D;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.cta-btn:hover { transform: translateY(-1px); box-shadow: 0 14px 26px -18px rgba(255, 255, 255, 0.6); }
.cta-btn svg { width: 14px; height: 14px; }
.cta-btn.ghost {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.16);
}
.cta-btn.ghost:hover { background: rgba(255, 255, 255, 0.14); box-shadow: none; }
.pg-cta .cta-foot {
  margin-top: 20px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.46);
  line-height: 1.8;
}

/* ---------- 页脚 ---------- */
.pg-foot { max-width: 1000px; margin-top: 56px; padding: 30px 24px 46px; }

/* ---------- 同页导航（子页之间的下一站） ---------- */
.pg-next { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 46px; }
.pg-next a {
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  transition: border-color 0.18s, transform 0.18s, box-shadow 0.18s;
}
.pg-next a:hover { border-color: var(--primary-border); transform: translateY(-2px); box-shadow: 0 16px 30px -26px rgba(20, 20, 26, 0.6); }
.pg-next i { font-style: normal; font-size: 10px; letter-spacing: 0.14em; color: var(--text-3); }
.pg-next b { display: block; font-size: 13.5px; font-weight: 600; margin-top: 4px; }
.pg-next span { display: block; font-size: 11.5px; color: var(--text-3); margin-top: 3px; line-height: 1.6; }

/* ---------- 进场动画 ---------- */
.pg .reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.pg .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .pg .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .pg-grid.c4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pg-next { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .pg-top .nav-toggle { display: inline-flex; }
  .pg-hero { padding: 34px 0 32px; }
  .pg-hero h1 { font-size: clamp(25px, 6.4vw, 34px); max-width: none; }
  .pg-lead { font-size: 13px; }
  .pg-sec { padding: 36px 0 4px; }
  .pg-grid.c3, .pg-grid.c4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pg-cta { padding: 32px 22px; border-radius: 20px; margin-top: 44px; }
  .pg-foot { margin-top: 44px; }

  /* 手机：胶囊导航改为下拉面板 */
  .pg .tb-pills {
    position: fixed;
    left: 12px;
    right: 12px;
    top: 64px;
    z-index: 90;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 3px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #FFFFFF;
    box-shadow: 0 26px 60px -30px rgba(20, 20, 26, 0.42), 0 2px 8px rgba(20, 20, 26, 0.05);
    opacity: 0;
    transform: translateY(-8px) scale(0.985);
    pointer-events: none;
    transition: opacity 0.22s var(--ease), transform 0.22s var(--ease);
  }
  .pg .tb-pills.open { opacity: 1; transform: none; pointer-events: auto; }
  .pg .tb-pills a {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    height: 44px;
    padding: 0 14px;
    font-size: 14px;
    border-radius: 12px;
  }
  .pg .tb-pills a.is-on { box-shadow: none; }
}

@media (max-width: 640px) {
  .pg-wrap { padding: 0 16px; }
  .pg-grid.c2, .pg-grid.c3, .pg-grid.c4 { grid-template-columns: 1fr; }
  .pg-cmp { grid-template-columns: 1fr; }
  .pg-check { grid-template-columns: 1fr; }
  .pg-gloss { grid-template-columns: 1fr; }
  .pg-next { grid-template-columns: 1fr; }
  .doc-slides { grid-template-columns: 1fr; }
  .doc-bi .db-row { grid-template-columns: 1fr; gap: 8px; }
  .doc-cluster .dc-row { grid-template-columns: 1fr; gap: 5px; }
  .pg-tl { padding-left: 26px; }
  .tl-item::before { left: -26px; }
  .pg-cta { padding: 26px 18px; }
  .cta-btn { width: 100%; justify-content: center; }
  .pg-top { padding: 0 16px; }
  .pg-brand .brand-text i { display: none; }
  .doc-head { padding: 15px 15px 13px; }
  .doc-body { padding: 4px 15px 15px; }
}

/* ---------- 顶栏滚动状态 ---------- */
.pg .topbar { transition: box-shadow 0.24s var(--ease), background 0.24s; }
.pg .topbar.scrolled { box-shadow: 0 10px 26px -24px rgba(20, 20, 26, 0.5); }

/* ---------- 带侧栏目录的样例页 ---------- */
.pg-split {
  display: grid;
  grid-template-columns: 172px minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}

.pg-toc {
  position: sticky;
  top: 78px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding-top: 46px;
}
.pg-toc p {
  font-size: 9.5px;
  letter-spacing: 0.16em;
  color: var(--text-3);
  margin-bottom: 9px;
  text-transform: uppercase;
}
.pg-toc a {
  font-size: 12px;
  color: var(--text-3);
  padding: 6px 0 6px 11px;
  border-left: 2px solid var(--line);
  transition: color 0.16s, border-color 0.16s;
  line-height: 1.5;
}
.pg-toc a:hover, .pg-toc a.on { color: var(--text); border-left-color: var(--accent); }

.sp-block + .sp-block { margin-top: 42px; padding-top: 38px; border-top: 1px solid var(--line); }
.sp-block h2 { font-size: clamp(18px, 2.4vw, 23px); letter-spacing: -0.02em; margin-top: 8px; }
.sp-block .pg-lead { font-size: 12.5px; margin-top: 8px; }
.sp-block .pg-doc { margin-top: 18px; }

@media (max-width: 1000px) {
  .pg-split { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .pg-toc { display: none; }
}

/* ---------- 订单状态徽章 ---------- */
.st-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
}
.st-badge.dot::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.st-badge.wait { color: #8A6A00; background: #FFF7E3; }
.st-badge.doing { color: #4B3BD6; background: var(--accent-soft); }
.st-badge.done { color: #0F8A5F; background: var(--mint-soft); }
.st-badge.payback { color: #B4232A; background: #FDECEC; }

/* 手机端顶栏：登录按钮是链接，需覆盖 styles.css 里「.tb-nav a 隐藏」的规则 */
@media (max-width: 900px) {
  .pg .tb-nav .tb-user {
    display: inline-flex;
    align-items: center;
    height: 32px;
    padding: 0 13px;
    font-size: 12px;
  }
}

/* 首屏内的元素不做过渡，直接显示，避免首帧空白 */
.pg .reveal.no-anim { transition: none; }

/* 手机上宽表格改为横向滚动，避免列被压成一条 */
@media (max-width: 640px) {
  .pg-tbwrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .pg-tb { min-width: 600px; }
  .pg-tbwrap::-webkit-scrollbar { height: 4px; }
  .pg-tbwrap::-webkit-scrollbar-thumb { background: #DEDEE7; border-radius: 4px; }
}