@charset "UTF-8";
/* ==========================================================================
   WhatsApp 网页版 · 文件运单（File Parcel）
   设计方向：牛皮纸包裹 + 运单标签 + 条形码
   牛皮纸底 + 白色运单 + 黑色等宽字段 + 橙色警示
   无渐变装饰、无硬阴影堆叠。所有颜色走变量。
   ========================================================================== */

:root {
  --kraft: #d6ac76;
  --kraft-2: #c99a5f;
  --kraft-3: #b98a4c;
  --label: #fdfcf7;
  --ink: #221c14;
  --ink-2: #463a2a;
  --muted: #7a6a52;
  --orange: #e8622a;
  --orange-2: #f08a52;
  --dark: #1d1810;
  --line: #c9b28b;
  --line-2: #a98d63;
  --tint: #f3e9d6;

  --sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --mono: Consolas, "SFMono-Regular", Menlo, "Liberation Mono", monospace;

  --fs-2xs: 0.7rem;
  --fs-xs: 0.78rem;
  --fs-sm: 0.87rem;
  --fs-base: 1.01rem;
  --fs-md: 1.11rem;
  --fs-lg: 1.29rem;
  --fs-xl: clamp(1.36rem, 2.1vw, 1.7rem);
  --fs-2xl: clamp(1.56rem, 2.8vw, 2.05rem);
  --fs-3xl: clamp(1.84rem, 3.5vw, 2.7rem);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--fs-base);
  line-height: 1.74;
  background-color: var(--kraft);
  background-image:
    repeating-linear-gradient(0deg, rgba(120, 88, 48, .07) 0 1px, transparent 1px 4px),
    repeating-linear-gradient(90deg, rgba(120, 88, 48, .04) 0 1px, transparent 1px 6px);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a {
  color: #8a3d18;
  text-decoration: none;
  border-bottom: 1px solid rgba(138, 61, 24, .4);
}
a:hover { color: var(--orange); border-bottom-color: var(--orange); }

code {
  font-family: var(--mono);
  font-size: 0.87em;
  background: var(--tint);
  border: 1px solid var(--line);
  padding: 0.04em 0.32em;
}

strong { font-weight: 700; color: #17120c; }

ul, ol { margin: 0; padding-left: 1.2em; }
li { margin: 0.34em 0; }

.wrap {
  width: min(1140px, calc(100% - 2.4rem));
  margin-inline: auto;
}

/* ---------- 顶栏 ---------- */
.topbar {
  background: var(--dark);
  color: #e8dcc4;
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 3px solid var(--orange);
}
.topbar-in {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-height: 60px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  border-bottom: 0;
  color: #f2e8d2;
  flex: none;
}
.brand-mark {
  width: 30px;
  height: 30px;
  border: 1.5px solid var(--orange);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--orange-2);
  flex: none;
}
.brand-name {
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.15;
}
.brand-name span {
  display: block;
  font-family: var(--mono);
  font-size: 0.56rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: #9c8a6d;
  text-transform: uppercase;
}
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.05rem;
  margin-left: auto;
  font-size: var(--fs-xs);
}
.nav a {
  border-bottom: 0;
  color: #c4b494;
  padding: 0.4rem 0.55rem;
  font-family: var(--mono);
  letter-spacing: 0.03em;
}
.nav a:hover { color: var(--orange-2); background: rgba(255, 255, 255, .06); }
.nav a[aria-current="page"] {
  color: var(--dark);
  background: var(--orange);
  font-weight: 700;
}
.nav a[aria-current="page"]:hover { color: var(--dark); }
.topcta {
  border: 1px solid #5c4d36;
  color: #ddcfb4;
  font-size: var(--fs-xs);
  padding: 0.36rem 0.7rem;
  border-bottom: 1px solid #5c4d36;
  flex: none;
  font-family: var(--mono);
}
.topcta:hover { background: var(--orange); color: var(--dark); border-color: var(--orange); }

/* ---------- 首屏 ---------- */
.hero { padding: clamp(2rem, 4.2vw, 3.4rem) 0 clamp(1.7rem, 3.4vw, 2.6rem); }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: clamp(1.7rem, 4vw, 3rem);
  align-items: start;
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: var(--fs-2xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
  background: var(--label);
  padding: 0.24rem 0.55rem;
  border-left: 3px solid var(--orange);
}
.hero h1 {
  font-size: var(--fs-3xl);
  line-height: 1.2;
  letter-spacing: -0.012em;
  margin: 0.85rem 0 1rem;
  font-weight: 800;
  text-wrap: balance;
}
.nb { display: inline-block; }
.h1-eye {
  display: block;
  font-family: var(--mono);
  font-size: 0.38em;
  letter-spacing: 0.16em;
  color: #7a4a1e;
  margin-bottom: 0.3em;
  text-transform: uppercase;
  font-weight: 400;
}
.hero-lead {
  font-size: var(--fs-md);
  color: #3f3322;
  max-width: 34em;
  margin: 0 0 1.4rem;
}
.acts { display: flex; flex-wrap: wrap; gap: 0.55rem; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  padding: 0.6rem 1rem;
  background: var(--label);
  color: var(--ink);
  border: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
}
.btn:hover { background: #fff; color: var(--orange); border-color: var(--orange); }
.btn-solid {
  background: var(--dark);
  color: #f2e8d2;
  border-color: var(--dark);
}
.btn-solid:hover { background: var(--orange); border-color: var(--orange); color: #fff; }

/* 首屏右侧：运单 */
.parcel {
  background: var(--label);
  padding: 0.1rem 0 0;
  border: 1px solid var(--line-2);
  position: relative;
}
.parcel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: repeating-linear-gradient(135deg, var(--orange) 0 8px, var(--dark) 8px 16px);
}
.pp-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.6rem;
  padding: 1rem 0.95rem 0.5rem;
  font-family: var(--mono);
  font-size: var(--fs-2xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.pp-head b { color: var(--ink); }
.pp-body { padding: 0 0.95rem 0.5rem; }
.pp-row {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.34rem 0;
  border-bottom: 1px dashed var(--line);
  font-family: var(--mono);
  font-size: var(--fs-xs);
}
.pp-row:last-child { border-bottom: 0; }
.pp-row span { color: var(--muted); letter-spacing: 0.04em; }
.pp-row b { color: var(--ink); font-weight: 700; }
.barcode {
  height: 44px;
  margin: 0.4rem 0.95rem 0.3rem;
  background-color: #fff;
  background-image: repeating-linear-gradient(90deg,
    #221c14 0 2px, transparent 2px 3px,
    #221c14 3px 4px, transparent 4px 8px,
    #221c14 8px 11px, transparent 11px 13px,
    #221c14 13px 14px, transparent 14px 19px,
    #221c14 19px 22px, transparent 22px 23px,
    #221c14 23px 24px, transparent 24px 28px);
}
.pp-code {
  margin: 0 0.95rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  color: var(--ink-2);
  text-align: center;
}

/* ---------- 数据条 ---------- */
.strip { background: var(--dark); color: #d3c4a8; }
.strip-in { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.metric {
  padding: 0.9rem 1rem;
  border-right: 1px solid rgba(255, 255, 255, .1);
}
.metric:last-child { border-right: 0; }
.metric b {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.2rem, 2.1vw, 1.66rem);
  color: var(--orange-2);
  line-height: 1.1;
  font-weight: 400;
}
.metric span { display: block; font-size: var(--fs-xs); color: #9c8a6d; margin-top: 0.22rem; line-height: 1.5; }

/* ---------- 章节 ---------- */
.sec { padding: clamp(2.1rem, 4.2vw, 3.2rem) 0; }
.sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.55rem 0.8rem;
  margin-bottom: 1.5rem;
}
.sec-tag {
  font-family: var(--mono);
  font-size: var(--fs-2xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--orange);
  color: #fff;
  padding: 0.22rem 0.5rem;
  flex: none;
}
.sec-tag.ghost { background: var(--dark); color: #f2e8d2; }
.sec-title {
  font-size: var(--fs-xl);
  line-height: 1.34;
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.008em;
  flex: 1 1 100%;
}
.sec-sub { margin: 0; color: #3f3322; font-size: var(--fs-sm); max-width: 46em; flex: 1 1 100%; }

/* ---------- 运单卡 ---------- */
.grid { display: grid; gap: 0.9rem; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card {
  background: var(--label);
  border: 1px solid var(--line-2);
  border-left: 4px solid var(--orange);
  padding: 0.95rem 1rem 1.05rem;
  position: relative;
}
.card.dark { border-left-color: var(--dark); }
.card.plain { border-left-color: var(--line-2); }
.card h3 {
  margin: 0.1rem 0 0.4rem;
  font-size: var(--fs-md);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.005em;
}
.card p { margin: 0 0 0.55rem; color: var(--ink-2); font-size: var(--fs-sm); }
.card p:last-child { margin-bottom: 0; }
.card .lbl {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  border-bottom: 1px solid var(--orange);
  padding-bottom: 0.08rem;
  margin-bottom: 0.35rem;
  font-weight: 700;
}
.card .lbl.grey { color: var(--muted); border-bottom-color: var(--line-2); }

/* ---------- 处理链 ---------- */
.chain { list-style: none; margin: 0; padding: 0; }
.chain li {
  background: var(--label);
  border: 1px solid var(--line-2);
  padding: 0.9rem 1rem;
  margin-bottom: 0.7rem;
  display: grid;
  grid-template-columns: 3.1rem minmax(0, 1fr);
  gap: 0.9rem;
  align-items: start;
}
.chain li:last-child { margin-bottom: 0; }
.chain .no {
  font-family: var(--mono);
  font-size: var(--fs-lg);
  line-height: 1.2;
  color: var(--orange);
  font-weight: 700;
}
.chain h3 { margin: 0 0 0.25rem; font-size: var(--fs-md); font-weight: 800; line-height: 1.4; }
.chain p { margin: 0 0 0.35rem; color: var(--ink-2); font-size: var(--fs-sm); }
.chain p:last-child { margin-bottom: 0; }

/* ---------- 表格 ---------- */
.tbl-wrap { overflow-x: auto; max-width: 100%; border: 1px solid var(--line-2); background: var(--label); }
.tbl { width: 100%; min-width: 33rem; border-collapse: collapse; font-size: var(--fs-sm); }
.tbl caption {
  caption-side: top;
  text-align: left;
  padding: 0.55rem 0.85rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  background: var(--tint);
}
.tbl th, .tbl td { text-align: left; padding: 0.6rem 0.85rem; border-bottom: 1px dashed var(--line); vertical-align: top; }
.tbl thead th {
  background: var(--dark);
  color: #f2e8d2;
  font-weight: 700;
  font-size: var(--fs-xs);
  letter-spacing: 0.03em;
}
.tbl tbody tr:last-child td { border-bottom: 0; }
.tbl tbody tr:hover { background: #fbf6ea; }
.tbl td:first-child { font-weight: 700; color: var(--ink); }

/* ---------- 提示 ---------- */
.note-box {
  background: var(--label);
  border: 1px solid var(--line-2);
  border-top: 3px solid var(--orange);
  padding: 0.85rem 1rem;
  font-size: var(--fs-sm);
  color: var(--ink-2);
  margin-block: 1.1rem;
}
.note-box b { color: var(--ink); }
.note-box.grey { border-top-color: var(--dark); }

/* ---------- 相关 ---------- */
.related { margin-top: 1.7rem; border-top: 1px solid var(--line-2); padding-top: 1rem; }
.related h2 {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #6b5a3e;
  margin: 0 0 0.6rem;
  font-weight: 400;
}
.related ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.4rem 1.2rem; }
.related li { margin: 0; }
.related a { display: flex; align-items: baseline; gap: 0.45rem; font-size: var(--fs-sm); border-bottom: 0; }
.related a::before { content: "▸"; color: var(--orange); font-size: 0.8em; }
.related a:hover::before { color: var(--dark); }

/* ---------- 页脚 ---------- */
.foot { background: var(--dark); color: #b8a98c; padding: 1.8rem 0 2rem; margin-top: 1rem; border-top: 3px solid var(--orange); }
.foot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 1fr));
  gap: 1.6rem;
}
.foot h2 {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #8a7a5e;
  margin: 0 0 0.55rem;
  font-weight: 400;
}
.foot p { margin: 0; font-size: var(--fs-sm); max-width: 30em; }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { margin: 0.28rem 0; }
.foot a { font-size: var(--fs-sm); color: #c8b896; border-bottom: 1px solid rgba(255, 255, 255, .14); }
.foot a:hover { color: var(--orange-2); border-bottom-color: var(--orange); }
.foot-bottom {
  margin-top: 1.3rem;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(255, 255, 255, .1);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: #7d6d52;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.2rem;
  justify-content: space-between;
}

/* ---------- 404 ---------- */
.err {
  min-height: 56vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  place-items: center;
  padding: 3rem 0;
  text-align: center;
}
.err .no {
  font-family: var(--mono);
  font-size: clamp(2.2rem, 7.4vw, 4.2rem);
  letter-spacing: -0.02em;
  line-height: 1;
  margin: 0;
  color: var(--orange);
}
.err h1 { font-size: var(--fs-2xl); font-weight: 800; margin: 0.6rem 0; }
.err p { color: var(--ink-2); margin: 0 auto 1.4rem; max-width: 34em; }
.err .acts { justify-content: center; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .g3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .foot-grid > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 899px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .parcel { max-width: 27rem; }
}

@media (max-width: 760px) {
  .g2, .g3 { grid-template-columns: minmax(0, 1fr); }
  .strip-in { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric:nth-child(2) { border-right: 0; }
  .metric:nth-child(1), .metric:nth-child(2) { border-bottom: 1px solid rgba(255, 255, 255, .1); }
  .related ul { grid-template-columns: minmax(0, 1fr); }
  .nav { order: 3; margin-left: 0; width: 100%; flex-wrap: wrap; padding-bottom: 0.25rem; }
  .nav a { padding: 0.34rem 0.46rem; }
  .topcta { order: 2; margin-left: auto; }
  .chain li { grid-template-columns: minmax(0, 1fr); gap: 0.25rem; }
}

@media (max-width: 600px) {
  .foot-grid { grid-template-columns: minmax(0, 1fr); }
  .foot-grid > div:first-child { grid-column: auto; }
  .acts .btn { flex: 1 1 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}