/* 玖衍科技防务商城 — 视觉系统 · 日光情报台（光明版） */
@import url("https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;600;700&family=Noto+Serif+SC:wght@500;600;700&family=Source+Sans+3:wght@400;500;600&display=swap");

:root {
  /* 语义色：冷白纸面 + 深墨字 + 青绿信号 + 暖铜价签 */
  --bg-0: #e8eef5;
  --bg-1: #f5f8fc;
  --surface: #ffffff;
  --text: #152033;
  --text-muted: #5a6b80;
  --line: rgba(21, 32, 51, 0.1);
  --line-strong: rgba(21, 32, 51, 0.16);
  --signal: #0c7a72;
  --signal-soft: #11958b;
  --signal-wash: #e3f3f1;
  --brass: #8f7030;
  --brass-soft: #a67f2e;
  --brass-wash: #f7f0e2;
  --danger: #b54538;
  --danger-wash: #f8e8e5;
  /* 兼容旧变量名（全文沿用 --snow/--mist/--ink） */
  --ink: var(--bg-0);
  --ink-2: #dce6f0;
  --panel: rgba(255, 255, 255, 0.92);
  --mist: var(--text-muted);
  --snow: var(--text);
  --font-display: "Noto Serif SC", "Songti SC", serif;
  --font-ui: "Source Sans 3", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "Barlow Condensed", sans-serif;
  --max: 1120px;
  --shadow-soft: 0 12px 32px rgba(21, 32, 51, 0.07);
  --shadow-lift: 0 16px 40px rgba(21, 32, 51, 0.1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-ui);
  background:
    radial-gradient(1100px 640px at 8% -8%, rgba(12, 122, 114, 0.1), transparent 55%),
    radial-gradient(900px 520px at 92% 4%, rgba(166, 127, 46, 0.1), transparent 52%),
    linear-gradient(168deg, #f7fafc 0%, var(--bg-0) 46%, #dde7f1 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(21, 32, 51, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 32, 51, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, #000 32%, transparent 78%);
  z-index: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
}

.wrap {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* —— Top bar —— */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(247, 250, 252, 0.86);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}

.brand-mark {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  font-family: var(--font-display);
  letter-spacing: 0.04em;
}

.brand-mark .cn {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.brand-mark .en {
  font-family: var(--font-num);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brass);
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.nav-links a:hover {
  color: var(--signal);
}

/* —— Hero（首屏只做品牌叙事） —— */
.hero {
  position: relative;
  min-height: min(72vh, 640px);
  display: grid;
  align-items: end;
  padding: 4.5rem 0 4rem;
  overflow: hidden;
}

.hero-orbit {
  position: absolute;
  inset: 6% -8% auto auto;
  width: min(54vw, 560px);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(12, 122, 114, 0.18);
  background:
    radial-gradient(circle at 40% 40%, rgba(12, 122, 114, 0.14), transparent 44%),
    radial-gradient(circle at 70% 60%, rgba(166, 127, 46, 0.14), transparent 46%);
  animation: drift 18s ease-in-out infinite alternate;
  pointer-events: none;
}

.hero-orbit::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px dashed rgba(21, 32, 51, 0.12);
  animation: spin 48s linear infinite;
}

@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(-4%, 3%) scale(1.04); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.hero-copy {
  position: relative;
  max-width: 34rem;
}

.hero-kicker {
  display: inline-block;
  margin-bottom: 1rem;
  font-family: var(--font-num);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-size: 0.82rem;
  color: var(--brass);
  opacity: 0;
  animation: rise 0.9s ease 0.1s forwards;
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  line-height: 1.15;
  letter-spacing: 0.06em;
  opacity: 0;
  animation: rise 0.9s ease 0.25s forwards;
}

.hero-lead {
  margin: 0 0 2rem;
  color: var(--mist);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 32rem;
  opacity: 0;
  animation: rise 0.9s ease 0.4s forwards;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  opacity: 0;
  animation: rise 0.9s ease 0.55s forwards;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  border-radius: 2px;
  border: 1px solid transparent;
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(120deg, #0f8f85, #0c7a72);
  color: #f4fffd;
  box-shadow: 0 8px 20px rgba(12, 122, 114, 0.22);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(12, 122, 114, 0.28);
  color: var(--signal);
}

.btn-ghost:hover {
  border-color: var(--signal);
  background: var(--signal-wash);
}

/* —— Sections —— */
.section {
  padding: 4.5rem 0 1rem;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: 0.08em;
}

.section-head p {
  margin: 0.35rem 0 0;
  color: var(--mist);
  max-width: 36rem;
  line-height: 1.6;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.chip {
  min-height: 36px;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.85);
  color: var(--text-muted);
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chip:hover,
.chip.active {
  border-color: var(--signal);
  color: var(--signal);
  background: var(--signal-wash);
}

.search-row {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.search-row input {
  flex: 1;
  min-height: 44px;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  box-shadow: inset 0 1px 2px rgba(21, 32, 51, 0.03);
}

.search-row input:focus {
  outline: 1px solid var(--signal);
}

/* —— Product list（非 hero 卡片：交互容器） —— */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.1rem;
}

.product {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.2rem 1.2rem 1.1rem;
  border: 1px solid var(--line);
  border-left: 3px solid rgba(166, 127, 46, 0.55);
  background: linear-gradient(165deg, #ffffff 0%, #f7fafc 100%);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  min-height: 220px;
}

.product-featured {
  border-color: rgba(196, 163, 90, 0.55);
  box-shadow: 0 0 0 1px rgba(196, 163, 90, 0.18);
}

.meta-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.65rem;
  margin: 1rem 0 0.75rem;
}

.meta-strip > div {
  padding: 0.65rem 0.75rem;
  border-left: 2px solid rgba(143, 112, 48, 0.4);
  background: var(--brass-wash);
}

.meta-strip b {
  display: block;
  font-family: var(--font-num);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--brass);
  margin-bottom: 0.25rem;
}

.meta-strip span {
  color: var(--mist);
  font-size: 0.88rem;
  line-height: 1.45;
}

.chap-preview {
  margin: 0.25rem 0 0.45rem;
  padding: 0;
  list-style: none;
  color: var(--mist);
  font-size: 0.78rem;
  line-height: 1.45;
}

.chap-preview li {
  margin: 0.28rem 0;
}

.chap-preview a.chap-link {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
  color: var(--mist);
  text-decoration: none;
  padding: 0.2rem 0.15rem;
  border-radius: 2px;
  transition: color 0.15s ease, background 0.15s ease;
}

.chap-preview a.chap-link:hover {
  color: var(--signal);
  background: var(--signal-wash);
}

.chap-num {
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--brass);
  opacity: 0.9;
  min-width: 2.4rem;
}

.chap-title {
  flex: 1;
  border-bottom: 1px dashed rgba(143, 112, 48, 0.28);
  line-height: 1.4;
}

.chap-preview a.chap-link:hover .chap-title {
  border-bottom-color: var(--signal);
}

.chap-more {
  opacity: 0.55;
  padding-left: 2.85rem;
  font-size: 0.75rem;
}

.guide-foot-link {
  text-decoration: none;
  font-size: 0.82rem;
  color: var(--signal);
}

.guide-foot-link:hover {
  color: var(--brass-soft);
}

/* 导览根：纵向堆叠，禁止把合售条放进 CSS Grid 子项 */
.intel-guide-root {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: stretch;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  align-items: start;
}

.guide-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.15rem 1.15rem 1rem;
  border: 1px solid var(--line);
  border-left: 3px solid rgba(12, 122, 114, 0.55);
  background: linear-gradient(165deg, #ffffff 0%, #f3f8f7 100%);
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  min-height: 210px;
  max-height: none;
  text-decoration: none;
  color: inherit;
}

.guide-card-main {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  text-decoration: none;
  color: inherit;
}

.guide-card:hover {
  transform: translateY(-3px);
  border-color: rgba(12, 122, 114, 0.4);
  box-shadow: var(--shadow-lift);
}

.guide-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.4;
  letter-spacing: 0.03em;
}

.toc-tree {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
}

.toc-chap {
  border-bottom: 1px solid rgba(183, 197, 214, 0.1);
  padding: 0.85rem 1rem;
  scroll-margin-top: 4.5rem;
}

.toc-flash {
  outline: 1px solid rgba(196, 163, 90, 0.85);
  background: rgba(196, 163, 90, 0.18);
  box-shadow: inset 3px 0 0 var(--brass);
  transition: background 0.45s ease, box-shadow 0.45s ease;
}

.toc-chap:last-child {
  border-bottom: none;
}

.toc-chap-title {
  display: block;
  font-family: var(--font-display);
  letter-spacing: 0.04em;
  color: var(--brass-soft);
  margin-bottom: 0.45rem;
  font-size: 0.98rem;
  text-decoration: none;
}

.toc-chap-title:hover {
  color: var(--brass);
}

.toc-secs {
  list-style: none;
  margin: 0;
  padding: 0 0 0 0.35rem;
}

.toc-sec {
  color: var(--mist);
  font-size: 0.88rem;
  padding: 0.28rem 0 0.28rem 0.75rem;
  border-left: 2px solid rgba(196, 163, 90, 0.25);
  margin: 0.2rem 0;
}

.toc-sec ul {
  list-style: none;
  margin: 0.25rem 0 0;
  padding-left: 0.85rem;
}

.toc-point {
  font-size: 0.8rem;
  color: rgba(183, 197, 214, 0.85);
  padding: 0.12rem 0;
}

.toc-raw {
  margin-top: 1rem;
  color: var(--mist);
  font-size: 0.88rem;
}

.toc-raw summary {
  cursor: pointer;
  color: var(--brass-soft);
  margin-bottom: 0.5rem;
}

.conflict-box {
  margin: 0.75rem 0;
  padding: 0.75rem 0.85rem;
  border: 1px solid rgba(181, 69, 56, 0.28);
  background: var(--danger-wash);
  color: #7a2f27;
  font-size: 0.85rem;
  line-height: 1.55;
}

.conflict-box strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--danger);
  font-family: var(--font-display);
  letter-spacing: 0.04em;
}

.conflict-box ul {
  margin: 0.35rem 0;
  padding-left: 1.1rem;
}

.price-sub {
  font-size: 0.78rem;
  color: var(--mist);
  margin-top: 0.2rem;
}


.product-cat {
  font-family: var(--font-num);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--signal);
}

.product h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.12rem;
  line-height: 1.45;
  letter-spacing: 0.03em;
}

.product .sub {
  margin: 0;
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.55;
  flex: 1;
}

.product-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 0.35rem;
  border-top: 1px solid var(--line);
}

.price {
  font-family: var(--font-num);
  font-size: 1.25rem;
  letter-spacing: 0.06em;
  color: var(--brass-soft);
}

.muted {
  color: var(--mist);
  font-size: 0.92rem;
}

.empty,
.error {
  padding: 2rem 0;
  color: var(--mist);
}

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

/* —— Detail —— */
.detail-shell {
  padding: 2.5rem 0 4rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 1.5rem;
  align-items: start;
}

.inquiry {
  position: sticky;
  top: 4.5rem;
}

.inquiry-actions {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin: 1rem 0;
}

.crumb {
  margin-bottom: 1.25rem;
  color: var(--mist);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.crumb-sep {
  opacity: 0.45;
}

.crumb a:hover {
  color: var(--brass-soft);
}

.lead-sub {
  font-size: 1.02rem;
  line-height: 1.55;
}

.detail-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.85rem 0 1.1rem;
  padding: 0.55rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.detail-jump a {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 0.28rem 0.7rem;
  border: 1px solid rgba(12, 122, 114, 0.25);
  color: var(--signal);
  background: var(--signal-wash);
  transition: background 0.15s ease, border-color 0.15s ease;
}

.detail-jump a:hover {
  background: #d2ebe8;
  border-color: var(--signal);
}

.layer-banner {
  margin: 0.75rem 0 0.35rem;
  padding: 0.55rem 0.75rem;
  border-left: 2px solid var(--signal);
  background: rgba(94, 194, 183, 0.08);
}

.toc-section {
  margin-top: 1.5rem;
}

.toc-stats {
  font-size: 0.88rem;
  margin-top: 0;
}

.panel {
  padding: 1.4rem 1.5rem;
  background: var(--panel);
  border: 1px solid rgba(183, 197, 214, 0.14);
}

.panel h1 {
  margin: 0.4rem 0 0.7rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.35;
  letter-spacing: 0.04em;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0;
}

.tag {
  padding: 0.2rem 0.55rem;
  border: 1px solid rgba(183, 197, 214, 0.2);
  color: var(--mist);
  font-size: 0.78rem;
}

.highlights {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--mist);
  line-height: 1.7;
}

.toc-box {
  margin-top: 1.25rem;
  max-height: 420px;
  overflow: auto;
  padding: 1rem;
  background: #f3f6fa;
  border: 1px solid var(--line);
  white-space: pre-wrap;
  font-family: "Cascadia Mono", "Consolas", "Source Han Sans SC", monospace;
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--text);
}

.lane-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.lane-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: linear-gradient(145deg, #ffffff 0%, #f2f7f6 100%);
  box-shadow: var(--shadow-soft);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.lane-card:hover {
  border-color: rgba(12, 122, 114, 0.35);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.lane-name {
  font-family: var(--font-display);
  letter-spacing: 0.06em;
  color: var(--text);
  font-size: 1.15rem;
}

.lane-desc {
  font-size: 0.84rem;
  color: var(--mist);
  line-height: 1.45;
  flex: 1;
}

.lane-count {
  font-size: 0.78rem;
  color: var(--signal);
}

.catalog-meta {
  margin: 0 0 1.25rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.85);
}

.catalog-meta > div {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 0.5rem 1rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid rgba(183, 197, 214, 0.08);
  font-size: 0.86rem;
}

.catalog-meta > div:last-child {
  border-bottom: none;
}

.catalog-meta dt {
  margin: 0;
  color: var(--brass);
}

.catalog-meta dd {
  margin: 0;
  color: var(--snow);
}

.inquiry label {
  display: block;
  margin: 0.7rem 0 0.3rem;
  font-size: 0.85rem;
  color: var(--mist);
}

.inquiry input,
.inquiry textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

.inquiry textarea {
  min-height: 110px;
  resize: vertical;
}

.inquiry .btn {
  width: 100%;
  margin-top: 1rem;
}

.custom-opts {
  margin: 1rem 0 0;
  padding: 0.85rem 0.9rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.88);
}

.custom-opts legend {
  padding: 0 0.35rem;
  font-family: var(--font-display);
  letter-spacing: 0.06em;
  color: var(--brass-soft);
  font-size: 0.92rem;
}

.custom-opts-note {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
}

.custom-opt {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  margin: 0 0 0.65rem;
  cursor: pointer;
  font-size: 0.86rem;
}

.custom-opt input[type="checkbox"] {
  width: auto;
  margin-top: 0.2rem;
  accent-color: var(--brass);
}

.custom-opt-body {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.custom-opt-title {
  color: var(--snow);
}

.custom-opt-title em {
  font-style: normal;
  margin-left: 0.4rem;
  color: var(--brass-soft);
  font-size: 0.8rem;
}

.qty-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.25rem;
  font-size: 0.78rem;
  color: var(--mist);
}

.qty-inline input {
  width: 4.2rem;
  padding: 0.25rem 0.4rem;
}

.quote-preview {
  margin-top: 0.5rem;
  padding-top: 0.65rem;
  border-top: 1px solid rgba(183, 197, 214, 0.12);
  font-size: 0.86rem;
}

.quote-preview > div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 0.2rem 0;
  color: var(--mist);
}

.quote-preview b {
  color: var(--snow);
  font-weight: 600;
}

.quote-preview b.brass,
.quote-preview .brass {
  color: var(--brass-soft);
}

.quote-total {
  margin-top: 0.35rem !important;
  font-size: 0.95rem;
}

.quote-total b {
  font-family: var(--font-display);
  letter-spacing: 0.04em;
  color: var(--brass-soft) !important;
}

.download-box {
  margin-top: 0.85rem;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(196, 163, 90, 0.28);
  background: linear-gradient(135deg, rgba(196, 163, 90, 0.08), rgba(14, 28, 48, 0.4));
}

.download-box a {
  color: var(--brass-soft);
  font-weight: 600;
}

.form-msg {
  margin-top: 0.75rem;
  font-size: 0.88rem;
}

.form-msg.ok { color: var(--signal); }
.form-msg.bad { color: var(--danger); }

/* —— Footer —— */
.site-footer {
  margin-top: 4rem;
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--mist);
  font-size: 0.88rem;
}

.site-footer strong {
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 600;
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .detail-grid { grid-template-columns: 1fr; }
  .inquiry { position: static; }
  .hero { min-height: auto; padding-top: 3rem; }
  .hero-orbit { width: 70vw; opacity: 0.7; }
  .sample-body { max-height: 22rem; }
}

.block-title {
  font-family: var(--font-display);
  letter-spacing: 0.06em;
  color: var(--text);
  font-size: 1.02rem;
  margin: 1.4rem 0 0.55rem;
}

.read-block {
  margin: 1.25rem 0 0.5rem;
  padding: 1.15rem 1.2rem 1.05rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--brass);
  background: linear-gradient(165deg, #ffffff 0%, var(--brass-wash) 100%);
  box-shadow: var(--shadow-soft);
  animation: read-in 0.45s ease both;
}

.read-guide {
  border-left-color: var(--brass);
}

.read-sample {
  border-left-color: var(--signal);
  background: linear-gradient(165deg, #ffffff 0%, var(--signal-wash) 100%);
}

.read-kicker {
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 0.35rem;
}

.read-sample .read-kicker {
  color: var(--signal);
}

.read-block .block-title {
  margin-top: 0;
}

.sample-foot {
  margin: 0.85rem 0 0;
  font-size: 0.82rem;
}

.sample-foot a {
  color: var(--brass-soft);
  border-bottom: 1px dashed rgba(196, 163, 90, 0.4);
}

.sample-foot a:hover {
  color: var(--brass);
}

@keyframes read-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

#jiuyan-guide,
#sample-read,
#toc-body,
#inquiry-panel,
#bundle-entries {
  scroll-margin-top: 4.75rem;
}

.layer-note {
  font-size: 0.82rem;
  color: var(--mist);
  line-height: 1.55;
  margin: 0.45rem 0 0.75rem;
}

.md-lite p {
  color: var(--mist);
  line-height: 1.75;
  margin: 0.45rem 0;
}

.md-lite h3,
.md-lite h4,
.md-lite h5 {
  font-family: var(--font-display);
  color: var(--brass-soft);
  margin: 0.85rem 0 0.35rem;
  font-size: 1rem;
}

.md-lite ul,
.md-lite ol {
  margin: 0.35rem 0 0.6rem;
  padding-left: 1.2rem;
  color: var(--mist);
  line-height: 1.65;
}

.md-lite blockquote {
  margin: 0.6rem 0;
  padding: 0.45rem 0.9rem;
  border-left: 2px solid rgba(143, 112, 48, 0.45);
  background: var(--brass-wash);
  color: var(--mist);
}

.md-lite strong {
  color: var(--text);
  font-weight: 600;
}

.sample-body {
  max-height: 28rem;
  overflow: auto;
  padding-right: 0.35rem;
}

.bundle-entries {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.85rem;
}

.bundle-entry {
  display: flex;
  gap: 0.85rem;
  padding: 1rem 1.05rem;
  border: 1px solid var(--line);
  background: #ffffff;
  box-shadow: var(--shadow-soft);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.bundle-entry:hover {
  border-color: rgba(12, 122, 114, 0.35);
  transform: translateY(-2px);
}

.bundle-entry-num {
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 1.35rem;
  line-height: 1;
  color: var(--brass);
  opacity: 0.85;
  min-width: 2rem;
}

.bundle-entry-body {
  flex: 1;
  min-width: 0;
}

.bundle-entry-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem;
  margin-bottom: 0.25rem;
}

.bundle-entry-head strong {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--snow);
}

.bundle-entry-title {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.45;
}

.bundle-entry-sub {
  margin: 0.2rem 0 0.45rem;
  font-size: 0.78rem;
  line-height: 1.4;
}

.bundle-entry-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.bundle-go {
  font-size: 0.78rem;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px dashed rgba(12, 122, 114, 0.35);
}

.bundle-go:hover {
  color: var(--brass-soft);
  border-bottom-color: var(--brass);
}

.bundle-pack {
  border-left-color: var(--signal);
  background: linear-gradient(165deg, #ffffff 0%, var(--signal-wash) 100%);
}

.bundle-price-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.65rem;
  margin: 0.5rem 0 0.75rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid rgba(12, 122, 114, 0.2);
  background: var(--signal-wash);
}

.bundle-price-strip div {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.bundle-price-strip span {
  font-size: 0.72rem;
  color: var(--mist);
  letter-spacing: 0.04em;
}

.bundle-price-strip b {
  font-family: var(--font-num);
  font-size: 1.05rem;
  color: var(--snow);
}

.bundle-price-strip b.brass {
  color: var(--brass-soft);
}

.bundle-hero {
  /* 紧凑横幅：永不作为 grid 子项被 stretch 拉高 */
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.85rem 1.5rem;
  align-items: center;
  align-self: start;
  width: 100%;
  height: auto;
  min-height: 0;
  max-height: none;
  margin: 0;
  padding: 1.15rem 1.35rem 1.1rem;
  border: 1px solid rgba(12, 122, 114, 0.22);
  border-left: 4px solid var(--signal);
  background:
    linear-gradient(108deg, var(--signal-wash) 0%, #ffffff 46%, var(--brass-wash) 100%);
  box-shadow: var(--shadow-soft);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.bundle-hero:hover {
  transform: translateY(-2px);
  border-color: rgba(12, 122, 114, 0.42);
  box-shadow: var(--shadow-lift);
}

.bundle-hero-copy {
  min-width: 0;
}

.bundle-hero-kicker {
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 0.3rem;
}

.bundle-hero h3 {
  margin: 0 0 0.3rem;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.4vw, 1.28rem);
  line-height: 1.35;
  color: var(--text);
}

.bundle-hero .sub {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.bundle-hero-aside {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.28rem;
  text-align: right;
  white-space: nowrap;
}

.bundle-hero-aside .muted {
  font-size: 0.78rem;
  white-space: normal;
  max-width: 14rem;
}

.bundle-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.65rem;
  margin: 0.65rem 0 0.5rem;
}

.bundle-hero-cta {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--signal);
}

@media (max-width: 720px) {
  .bundle-hero {
    grid-template-columns: 1fr;
  }

  .bundle-hero-aside {
    align-items: flex-start;
    text-align: left;
    padding-top: 0.35rem;
    border-top: 1px dashed var(--line);
  }

  .bundle-hero-aside .muted {
    max-width: none;
  }
}