/* ============================================================
   components.css — 组件与构成
   依赖 tokens.css / base.css
   ============================================================ */

/* ---------------- 顶部导航 ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 241, 234, 0.86);
  backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid var(--hair);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-height: 44px;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.brand__logo {
  display: block;
  width: auto;
  height: 46px;
}
.brand__text {
  display: grid;
  line-height: 1.15;
  padding-left: 12px;
  border-left: 1px solid var(--hair-strong);
}
@media (max-width: 620px) {
  .brand__logo { height: 34px; }
  .brand__text { display: none; } /* 窄屏只留 logo，把横向空间让给菜单键 */
}
.brand__name {
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: -0.01em;
}
.brand__latin {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.nav {
  display: none;
}
.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 34px);
}
.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 0.94rem;
  text-decoration: none;
  color: var(--ink-soft);
  transition: color var(--dur-fast) ease-out;
}
/* 悬停下划线由左扫入 */
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 12px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out);
}
.nav__link:hover {
  color: var(--ink);
}
.nav__link:hover::after,
.nav__link:focus-visible::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition:
    background var(--dur-fast) ease-out,
    color var(--dur-fast) ease-out,
    transform var(--dur-fast) ease-out;
}
.btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--hair-strong);
}
.btn--ghost:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.btn--sm {
  min-height: 42px;
  padding: 0 16px;
  font-size: 0.86rem;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--hair-strong);
  background: transparent;
}
.menu-toggle__bars {
  position: relative;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: background var(--dur-fast) ease-out;
}
.menu-toggle__bars::before,
.menu-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: transform var(--dur-base) var(--ease-out);
}
.menu-toggle__bars::before { top: -6px; }
.menu-toggle__bars::after { top: 6px; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars {
  background: transparent;
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::before {
  transform: translateY(6px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* 移动端抽屉 */
.mobile-nav {
  display: grid;
  gap: 2px;
  overflow: hidden;
  max-height: 0;
  border-top: 1px solid transparent;
  transition:
    max-height var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out);
}
.mobile-nav[data-open="true"] {
  max-height: 420px;
  border-top-color: var(--hair);
}
.mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding-inline: var(--gutter);
  font-size: 1.02rem;
  text-decoration: none;
  border-bottom: 1px solid var(--hair);
}
.mobile-nav__link span {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--muted);
}

@media (max-width: 520px) {
  .header-actions .btn { display: none; } /* 小屏把「索取样品」收进抽屉，头部只留菜单键 */
}
@media (min-width: 960px) {
  .nav { display: block; }
  .menu-toggle { display: none; }
  .mobile-nav { display: none; }
}

/* ---------------- 首屏 ---------------- */
.hero {
  position: relative;
  z-index: 2;
  padding-block: clamp(40px, 7vw, 92px) clamp(40px, 6vw, 72px);
}

.hero__grid {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
  align-items: start;
}

@media (min-width: 1000px) {
  .hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: clamp(40px, 6vw, 88px);
  }
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero__eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--accent);
}

.hero__title {
  margin-top: var(--sp-4);
  font-size: var(--fs-hero);
  line-height: 0.94;
  letter-spacing: -0.04em;
  text-wrap: balance;
}
/* 故意让一个字块破格，压出左边界 */
.hero__title em {
  display: inline-block;
  font-style: normal;
  color: var(--accent);
  margin-left: -0.06em;
}

.hero__lead {
  margin-top: var(--sp-5);
  max-width: 34ch;
  font-size: var(--fs-lead);
  line-height: 1.75;
  color: var(--ink-soft);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--sp-5);
}

.hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-3);
  margin-top: clamp(32px, 5vw, 52px);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--hair-strong);
}
.hero__facts > div {
  display: flex;
  flex-direction: column-reverse; /* 数字在上、标签在下，DOM 顺序保持 dt → dd */
}
.fact__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 1;
}
.fact__num--range {
  font-size: clamp(1.02rem, 2vw, 1.32rem);
  white-space: nowrap;
  letter-spacing: -0.01em;
  line-height: 1.15;
}
.fact__label {
  margin-top: 8px;
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--muted);
}

@media (max-width: 520px) {
  .hero__facts { gap: 10px; }
  .fact__num { font-size: 1.45rem; }
  .fact__num--range { font-size: 0.84rem; }
  .fact__label { font-size: 0.66rem; letter-spacing: 0.02em; }
}

/* 右侧样本册：三张错位材料卡 */
.spec-stack {
  position: relative;
  display: grid;
  gap: 0;
  padding-top: 8px;
}
.spec-card {
  position: relative;
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: var(--sp-4);
  align-items: center;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--hair);
  box-shadow: var(--shadow-1);
  transition:
    transform var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}
.spec-card + .spec-card {
  margin-top: -1px;
}
.spec-card:nth-child(1) { transform: translateX(0) rotate(-0.35deg); }
.spec-card:nth-child(2) { transform: translateX(14px) rotate(0.25deg); }
.spec-card:nth-child(3) { transform: translateX(4px) rotate(-0.2deg); }
.spec-card:hover {
  transform: translateX(0) rotate(0deg);
  box-shadow: var(--shadow-2);
  z-index: 2;
}

/* 材料质感：全部用 CSS 渐变模拟，无外部图片依赖 */
.spec-card__swatch {
  height: 74px;
  border: 1px solid var(--hair);
  background-color: var(--paper-deep);
}
.sw--fragile {
  background-image:
    repeating-linear-gradient(135deg, rgba(120, 104, 76, 0.22) 0 1px, transparent 1px 9px),
    linear-gradient(160deg, #e5d8c1, #cdbb9c);
}
.sw--void {
  background-image:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.16) 0 2px, transparent 2px 14px),
    linear-gradient(160deg, #33404f, #1e2731);
}
.sw--tire {
  background-image:
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.07) 0 1px, transparent 1px 6px),
    linear-gradient(160deg, #2a2a27, #121210);
}
.sw--removable {
  background-image:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.5), transparent 55%),
    linear-gradient(160deg, #d6c8b1, #bda98c);
}
.sw--pi {
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.12) 0 1px, transparent 1px 7px),
    linear-gradient(160deg, #cf9a48, #a06f2c);
}
.sw--wire {
  background-image:
    repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.28) 0 3px, transparent 3px 12px),
    linear-gradient(160deg, #b3bcc1, #8b969b);
}
.sw--synthetic {
  background-image:
    repeating-linear-gradient(90deg, rgba(150, 140, 120, 0.16) 0 1px, transparent 1px 5px),
    linear-gradient(160deg, #f0ece2, #ddd7c8);
}
.sw--film {
  background-image:
    linear-gradient(115deg, rgba(255, 255, 255, 0.72) 0%, rgba(255, 255, 255, 0) 34%),
    linear-gradient(200deg, #dbe2de, #bcc7c2);
}
.sw--pet {
  background-image:
    repeating-linear-gradient(60deg, rgba(255, 255, 255, 0.35) 0 1px, transparent 1px 8px),
    linear-gradient(160deg, #cbd5d9, #a9b6bb);
}
.sw--static {
  background-image:
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.85), transparent 45%),
    linear-gradient(160deg, #eaf0ee, #cfdad7);
}

.spec-card__body { min-width: 0; }
.spec-card__code {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--accent-text);
}
.spec-card__name {
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.45;
  margin-top: 4px;
  overflow-wrap: anywhere;
}
.spec-card__meta {
  margin-top: 6px;
  font-size: var(--fs-xs);
  color: var(--muted);
}

.spec-stack__note {
  margin-top: var(--sp-4);
  padding-left: 12px;
  border-left: 2px solid var(--accent);
  font-size: var(--fs-sm);
  color: var(--muted);
  max-width: 40ch;
}

/* ---------------- 关键词跑马灯 ---------------- */
.ticker {
  position: relative;
  z-index: 2;
  overflow: hidden;
  border-block: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  padding-block: 13px;
}
.ticker__track {
  display: flex;
  width: max-content;
  gap: 0;
  animation: marquee 38s linear infinite;
}
.ticker:hover .ticker__track {
  animation-play-state: paused;
}
.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 22px;
  padding-inline: 22px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
}
.ticker__item::after {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--accent);
  transform: rotate(45deg);
}
@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

/* ---------------- 产品目录 ---------------- */
.toolbar {
  display: grid;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}
@media (min-width: 900px) {
  .toolbar {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
    gap: var(--sp-5);
  }
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
@media (max-width: 640px) {
  .chips {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
    scrollbar-width: thin;
  }
  .chips::-webkit-scrollbar { height: 4px; }
  .chips::-webkit-scrollbar-thumb { background: var(--hair-strong); }
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--hair-strong);
  background: transparent;
  font-size: 0.88rem;
  white-space: nowrap;
  transition:
    background var(--dur-fast) ease-out,
    color var(--dur-fast) ease-out,
    border-color var(--dur-fast) ease-out;
}
.chip__count {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
}
.chip:hover {
  background: var(--paper-deep);
}
.chip[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.chip[aria-pressed="true"] .chip__count {
  color: rgba(244, 241, 234, 0.62);
}

.search {
  position: relative;
  display: grid;
  gap: 6px;
}
.search__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.search__field {
  width: 100%;
  min-height: 46px;
  padding: 0 40px 0 0;
  border: 0;
  border-bottom: 1px solid var(--hair-strong);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--dur-fast) ease-out;
}
.search__field::placeholder { color: #918d80; }
.search__field:focus {
  border-bottom-color: var(--accent);
  outline: none;
}
.search__hint {
  position: absolute;
  right: 0;
  bottom: 13px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted);
  pointer-events: none;
}

.result-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding-block: 12px;
  border-top: 1px solid var(--ink);
  font-size: var(--fs-sm);
  color: var(--muted);
}
.result-bar strong {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--ink);
}

/* 规格表 */
.table-wrap {
  border-bottom: 1px solid var(--hair);
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}
.spec-table thead th {
  padding: 10px 8px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--hair-strong);
}
.spec-table tbody tr {
  border-bottom: 1px solid var(--hair);
  transition: background var(--dur-fast) ease-out;
}
.spec-table tbody tr:hover {
  background: var(--accent-wash);
}
.spec-table td {
  padding: 13px 8px;
  vertical-align: middle;
  font-size: 0.94rem;
}
.col-code { width: 132px; }
.col-cat { width: 132px; }

.code-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  transition: color var(--dur-fast) ease-out;
}
.code-btn:hover { color: var(--accent-text); }
.code-btn__icon {
  opacity: 0;
  transition: opacity var(--dur-fast) ease-out;
  font-size: 0.66rem;
  color: var(--accent);
}
.code-btn:hover .code-btn__icon,
.code-btn:focus-visible .code-btn__icon { opacity: 1; }

.cell-name { overflow-wrap: anywhere; }
.cell-cat {
  font-size: 0.82rem;
  color: var(--muted);
}

/* 移动端：表格转卡片 */
@media (max-width: 720px) {
  .spec-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .spec-table,
  .spec-table tbody,
  .spec-table td { display: block; width: auto; }
  .spec-table tbody tr {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "code cat"
      "name name";
    column-gap: 12px;
    row-gap: 6px;
    align-items: center;
    padding: 13px 0;
    border-bottom: 1px solid var(--hair);
  }
  .spec-table td { padding: 0; }
  .col-code { grid-area: code; width: auto; }
  .cell-name { grid-area: name; }
  .col-cat { grid-area: cat; width: auto; text-align: right; }
  .cell-cat { font-size: 0.76rem; }
}

/* 分批显示 */
.more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}
.more__btn[hidden] { display: none; }
.more__hint {
  font-size: var(--fs-xs);
  color: var(--muted);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.more__hint[hidden] { display: none; }

/* 空态 */
.empty {
  display: none;
  padding: var(--sp-6) var(--sp-4);
  border: 1px dashed var(--hair-strong);
  text-align: center;
  margin-top: var(--sp-4);
}
.empty[data-visible="true"] { display: block; }
.empty__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
}
.empty__text {
  margin: 8px auto 0;
  color: var(--muted);
  font-size: var(--fs-sm);
  max-width: 40ch;
}

.table-note {
  margin-top: var(--sp-4);
  font-size: var(--fs-sm);
  color: var(--muted);
  max-width: 60ch;
}

/* ---------------- 规格读法（解码块） ---------------- */
.decode {
  display: grid;
  gap: var(--sp-5);
}
@media (min-width: 960px) {
  .decode {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: var(--sp-7);
    align-items: start;
  }
}

.decode__demo {
  padding: clamp(20px, 3vw, 34px);
  background: var(--surface);
  border: 1px solid var(--hair);
  box-shadow: var(--shadow-1);
}
.decode__code {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.2vw, 1.55rem);
  letter-spacing: 0.02em;
  line-height: 1.6;
  word-break: break-word;
}
.decode__code b {
  color: var(--accent);
  font-weight: 600;
}
.decode__arrow {
  display: block;
  margin-top: 16px;
  width: 100%;
  height: 0;
  border-top: 1px dashed var(--hair-strong);
}
.decode__parts {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}
.decode__part {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--hair);
  font-size: 0.9rem;
}
.decode__part dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-text);
  padding-top: 3px;
}
.decode__part dd {
  margin: 0;
  color: var(--ink-soft);
}

.decode__dims {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--hair-strong);
}
.dim {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: var(--sp-3);
  padding-block: var(--sp-4);
  border-bottom: 1px solid var(--hair);
}
.dim__idx {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--muted);
  padding-top: 4px;
}
.dim__title {
  font-size: 1rem;
  font-weight: 600;
}
.dim__text {
  margin-top: 6px;
  font-size: 0.9rem;
  color: var(--muted);
  max-width: 38ch;
}

/* ---------------- 关于 ---------------- */
.about {
  display: grid;
  gap: var(--sp-5);
}
@media (min-width: 960px) {
  .about {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: var(--sp-7);
  }
}
.about__body p + p { margin-top: var(--sp-3); }
.about__body p {
  color: var(--ink-soft);
  font-size: 1.02rem;
  max-width: 40em;
}
.about__body strong {
  font-weight: 600;
  color: var(--ink);
  box-shadow: inset 0 -0.42em 0 var(--accent-wash);
}

/* 主营清单 */
.about__list {
  margin-top: var(--sp-4);
  padding: 0;
  list-style: none;
  max-width: 40em;
  border-top: 1px solid var(--hair);
}
.about__list li {
  display: flex;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--hair);
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.about__list li::before {
  content: "—";
  flex: none;
  font-family: var(--font-mono);
  color: var(--accent-text);
}

/* 理念带 */
.creed {
  display: grid;
  gap: var(--sp-4);
  margin-top: var(--sp-6);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--ink);
}
@media (min-width: 860px) {
  .creed {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--sp-5);
  }
}
.creed__item { margin: 0; }
.creed__key {
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--accent-text);
}
.creed__text {
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--ink-soft);
}

.params {
  border-top: 1px solid var(--ink);
}
.params__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-3);
  padding-block: 13px;
  border-bottom: 1px solid var(--hair);
  font-size: 0.9rem;
}
.params__key { color: var(--muted); }
.params__val {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  text-align: right;
}

/* ---------------- 联系 ---------------- */
.contact {
  display: grid;
  gap: var(--sp-6);
}
@media (min-width: 960px) {
  .contact {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: var(--sp-7);
  }
}

.contact__info {
  display: grid;
  gap: var(--sp-4);
  align-content: start;
}
.info-block {
  padding-top: 12px;
  border-top: 1px solid var(--hair);
}
.info-block__key {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.info-block__val {
  margin-top: 6px;
  font-size: 1rem;
  overflow-wrap: anywhere;
}
.info-block__val a { text-decoration-color: var(--accent); }

.form {
  display: grid;
  gap: var(--sp-4);
}
.field {
  display: grid;
  gap: 6px;
}
.field__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.field__control {
  width: 100%;
  min-height: 46px;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--hair-strong);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition:
    border-color var(--dur-fast) ease-out,
    box-shadow var(--dur-fast) ease-out;
}
.field__control:hover { border-color: var(--ink-soft); }
.field__control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-wash);
}
.field__control:user-invalid {
  border-color: var(--accent);
}
textarea.field__control {
  min-height: 132px;
  resize: vertical;
  line-height: 1.65;
}
.field__row {
  display: grid;
  gap: var(--sp-4);
}
@media (min-width: 620px) {
  .field__row { grid-template-columns: 1fr 1fr; }
}
.form__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-3);
}
.form__note {
  font-size: var(--fs-xs);
  color: var(--muted);
  max-width: 30ch;
}

/* 询价结果面板 */
.enquiry {
  display: none;
  margin-top: var(--sp-4);
  padding: var(--sp-4);
  background: var(--paper-deep);
  border: 1px solid var(--hair-strong);
}
.enquiry[data-visible="true"] { display: block; }
.enquiry__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: 10px;
}
.enquiry__title {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-text);
}
.enquiry__text {
  width: 100%;
  min-height: 148px;
  padding: 12px;
  background: var(--surface);
  border: 1px solid var(--hair);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--ink-soft);
  resize: vertical;
}
.enquiry__hint {
  margin-top: 10px;
  font-size: var(--fs-xs);
  color: var(--muted);
}

/* ---------------- 页脚 ---------------- */
.site-footer {
  position: relative;
  z-index: 2;
  margin-top: var(--sp-6);
  padding-block: var(--sp-5) var(--sp-4);
  border-top: 1px solid var(--ink);
  background: var(--paper-deep);
}
.footer__grid {
  display: grid;
  gap: var(--sp-4);
}
@media (min-width: 760px) {
  .footer__grid {
    grid-template-columns: 1fr auto;
    align-items: end;
  }
}
.footer__brand {
  font-family: var(--font-display);
  font-size: 1.05rem;
}
.footer__meta {
  margin-top: 6px;
  font-size: var(--fs-xs);
  color: var(--muted-deep);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}
.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  font-size: var(--fs-sm);
}
.footer__links a { text-decoration: none; color: var(--ink-soft); }
.footer__links a:hover { color: var(--accent-text); }

/* ---------------- 复制提示 ---------------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 90;
  transform: translate(-50%, 16px);
  padding: 10px 18px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out);
}
.toast[data-visible="true"] {
  opacity: 1;
  transform: translate(-50%, 0);
}