/* ============================================================
   PAWSANGEL 安佑爪 · 宠物善终纪念品 B2B 站点设计系统 v1
   原则：禁 AI 模板感（无渐变紫/毛玻璃/大圆角），无 emoji，
   图标一律 lucide 语义（assets/icons.js 注入）。
   色板：暖胡桃棕 + 亚麻纸灰 + 铜赭强调 + 鼠尾草辅助——
   纪念题材的温暖庄重与 B 端商务的克制信任并重
   （对比度均按 ≥4.5:1 基线挑选）。
   全站多页共用：先引本文件，再引页面级样式（如需）。
   ============================================================ */

:root {
  /* 色板 */
  --ink:        #2A211A;   /* 主深色/标题/页脚底（暖胡桃黑） */
  --ink-2:      #45362B;   /* 次深 */
  --steel:      #7B6A55;   /* 暖灰褐，辅助文字 */
  --muted:      #8D7F6D;   /* 弱文字 */
  --paper:      #F8F5EE;   /* 页面浅底（亚麻纸灰） */
  --paper-2:    #F0EBE1;   /* 更深一档的底 */
  --line:       #E3DDD0;   /* 细分隔线 */
  --card:       #FFFFFF;
  --accent:     #A05A2C;   /* 铜赭：CTA/强调 */
  --accent-d:   #84481F;
  --teal:       #56714F;   /* 鼠尾草绿：认证/合格/环保 */
  --ok:         #4E7A52;
  --warn:       #A6690A;
  --footer-bg:  #211A14;
  --hero-ink:   #251D16;

  /* 字体 */
  --sans: -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
          "PingFang SC", "Microsoft YaHei", "Noto Sans", sans-serif;

  /* 几何：小圆角、细边框、浅阴影 */
  --r-s: 4px;  --r-m: 6px;
  --shadow-1: 0 1px 2px rgba(42,33,26,.06), 0 2px 8px rgba(42,33,26,.05);

  /* 布局 */
  --w: 1180px;
  --topbar-h: 36px;
  --nav-h: 64px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--card);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.wrap { max-width: var(--w); margin: 0 auto; padding: 0 24px; }

/* ---------- 图标 ---------- */
.ic { width: 20px; height: 20px; stroke: currentColor; fill: none;
      stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
      vertical-align: -4px; flex: none; }
.ic-lg { width: 28px; height: 28px; }
.ic-sm { width: 16px; height: 16px; vertical-align: -3px; }

/* ---------- 顶部工具条 ---------- */
.topbar { background: var(--hero-ink); color: #D3C9BD; font-size: 12.5px; }
.topbar .wrap { display: flex; justify-content: space-between; align-items: center;
  gap: 12px; min-height: var(--topbar-h); padding-top: 4px; padding-bottom: 4px;
  flex-wrap: wrap; }
.topbar-left { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.topbar-right { display: flex; gap: 16px; align-items: center; flex: none; }
.topbar a { color: #D3C9BD; }
.topbar a:hover { color: #fff; }
.topbar-item { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }

/* ---------- 语言下拉 ---------- */
.lang { position: relative; flex: none; }
.lang-btn { display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.28);
  color: #E4DCD2; font-size: 12.5px; padding: 5px 11px; border-radius: var(--r-s);
  line-height: 1.4; white-space: nowrap; }
.lang-btn:hover { color: #fff; border-color: rgba(255,255,255,.6); }
.lang-btn .ic { width: 15px; height: 15px; }
.lang-btn .chev { transition: transform .15s; }
.lang.open .lang-btn .chev { transform: rotate(180deg); }
.lang-menu { position: absolute; right: 0; top: calc(100% + 6px); z-index: 60;
  background: #fff; color: var(--ink); border: 1px solid var(--line);
  border-radius: var(--r-s); box-shadow: var(--shadow-1);
  min-width: 176px; padding: 6px 0; display: none; }
.lang.open .lang-menu { display: block; }
.lang-menu button { display: flex; width: 100%; text-align: left; gap: 10px;
  align-items: baseline; background: none; border: 0; padding: 10px 15px;
  font-size: 13.5px; color: var(--ink); min-height: 40px; }
.lang-menu button:hover { background: var(--paper); }
.lang-menu button.on { color: var(--accent); font-weight: 600; }
.lang-menu button.pending { opacity: .55; }
.lang-menu .en-name { color: var(--muted); font-size: 11.5px; margin-left: auto; }

/* ---------- 主导航 ---------- */
.nav { background: #fff; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50; }
.nav .wrap { display: flex; align-items: center; flex-wrap: wrap;
  min-height: var(--nav-h); padding-top: 8px; padding-bottom: 8px; gap: 8px 24px; }
.brand { display: flex; align-items: baseline; gap: 10px; flex: none; }
.brand-badge { width: 30px; height: 30px; border-radius: 7px; align-self: center; flex: none; }
.brand-mark { font-weight: 800; font-size: 21px; letter-spacing: .5px; color: var(--ink); }
.brand-mark b { color: var(--accent); font-weight: 800; }
.brand-cn { font-size: 12px; color: var(--muted); letter-spacing: 3px; }
.nav-links { display: flex; flex-wrap: wrap; gap: 2px 4px; margin-left: 8px;
  flex: 1; min-width: 0; }
.nav-links a { padding: 8px 10px; font-size: 14.5px; color: var(--ink-2);
  border-radius: var(--r-s); font-weight: 500; white-space: nowrap; }
.nav-links a:hover { background: var(--paper); color: var(--ink); }
.nav-links a.on { color: var(--accent); font-weight: 600; }
.nav-cta { flex: none; margin-left: auto; }

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--r-s); font-size: 14.5px;
  font-weight: 600; border: 1px solid transparent; line-height: 1.4; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-d); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: var(--ink-2); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--steel); }
.btn-ghost.on-dark { border-color: rgba(255,255,255,.4); color: #fff; background: transparent; }
.btn-ghost.on-dark:hover { border-color: #fff; }
.btn-sm { padding: 7px 14px; font-size: 13.5px; }

/* ---------- 区块标题 ---------- */
.section { padding: 64px 0; }
.section.paper { background: var(--paper); }
.sec-head { max-width: 760px; margin-bottom: 36px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-kicker { display: inline-flex; align-items: center; gap: 8px;
  color: var(--accent); font-size: 13px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; margin-bottom: 10px; }
.sec-kicker::before { content: ""; width: 26px; height: 2px; background: var(--accent); }
.sec-title { font-size: 30px; line-height: 1.3; font-weight: 700; color: var(--ink); }
.sec-sub { color: var(--muted); margin-top: 10px; font-size: 15px; }

/* ---------- Hero ---------- */
.hero { background: var(--hero-ink); color: #fff; position: relative; overflow: hidden; }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: .38; }
.hero-fade { position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(30,23,17,.92) 0%, rgba(30,23,17,.55) 55%, rgba(30,23,17,.25) 100%); }
.hero-inner { position: relative; padding: 96px 0 104px; max-width: 640px; }
.hero h1 { font-size: 40px; line-height: 1.25; font-weight: 800; letter-spacing: .3px; }
.hero p.lead { margin-top: 16px; font-size: 16.5px; color: #D8CEC2; max-width: 560px; }
.hero-acts { margin-top: 28px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-crumb { position: relative; font-size: 12.5px; color: #A7988A; padding-top: 14px; }
.hero-crumb a { color: #D8CEC2; }
.hero.page-hero .hero-inner { padding: 64px 0 72px; }
.hero.page-hero h1 { font-size: 32px; }

/* Hero 上的数据条 */
.hero-stats { position: relative; background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.14); border-radius: var(--r-m);
  display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 44px; }
.hero-stats .st { padding: 18px 22px; }
.hero-stats .st + .st { border-left: 1px solid rgba(255,255,255,.14); }
.hero-stats .num { font-size: 24px; font-weight: 800; color: #fff; }
.hero-stats .num small { font-size: 14px; font-weight: 600; color: #B7A998; margin-left: 2px; }
.hero-stats .lab { font-size: 12.5px; color: #B7A998; margin-top: 2px; }

/* ---------- 卡片与网格 ---------- */
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r-m); overflow: hidden; }
.card.pad { padding: 26px; }
.card .thumb { aspect-ratio: 16/10; width: 100%; object-fit: cover; background: var(--paper-2); }
.card .thumb.sq { aspect-ratio: 1/1; }
.card-body { padding: 20px 22px 24px; }
.card-title { font-size: 17px; font-weight: 700; color: var(--ink); }
.card-text { color: var(--muted); font-size: 14px; margin-top: 8px; }
.card .more { display: inline-flex; align-items: center; gap: 6px;
  margin-top: 14px; color: var(--accent); font-weight: 600; font-size: 13.5px; }
.card:hover { box-shadow: var(--shadow-1); }
a.card { display: block; }

/* 特性行（图标 + 标题 + 描述） */
.feat { display: flex; gap: 14px; align-items: flex-start; }
.feat .fic { width: 44px; height: 44px; flex: none; display: flex;
  align-items: center; justify-content: center; border-radius: var(--r-s);
  background: var(--paper); color: var(--accent); border: 1px solid var(--line); }
.feat .fic.teal { color: var(--teal); }
.feat h4 { font-size: 15.5px; font-weight: 700; }
.feat p { font-size: 13.5px; color: var(--muted); margin-top: 4px; }

/* 数字墙 */
.statbar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--r-m); overflow: hidden; }
.statbar .st { background: #fff; padding: 24px 22px; }
.statbar .num { font-size: 30px; font-weight: 800; color: var(--ink); }
.statbar .num small { font-size: 15px; color: var(--steel); font-weight: 700; }
.statbar .lab { font-size: 13px; color: var(--muted); margin-top: 2px; }

/* ---------- 表格 ---------- */
.tbl { width: 100%; border-collapse: collapse; font-size: 14px; background: #fff; }
.tbl th { text-align: left; background: var(--ink); color: #fff; font-weight: 600;
  padding: 12px 16px; font-size: 13.5px; }
.tbl td { padding: 12px 16px; border-bottom: 1px solid var(--line); color: var(--ink-2); }
.tbl tr:last-child td { border-bottom: 0; }
.tbl tr:nth-child(even) td { background: #FAF8F3; }
.tbl-wrap { border: 1px solid var(--line); border-radius: var(--r-m); overflow: hidden; }

/* ---------- 标签/徽章 ---------- */
.tag { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px;
  border: 1px solid var(--line); border-radius: 999px; font-size: 12.5px;
  color: var(--steel); background: #fff; }
.tag.teal { color: var(--teal); border-color: #CFDCC9; background: #F0F5EC; }
.tag.orange { color: var(--accent); border-color: #E9D2B9; background: #FBF4EA; }

/* 认证徽章墙 */
.cert { display: flex; align-items: center; gap: 10px; border: 1px solid var(--line);
  background: #fff; border-radius: var(--r-s); padding: 12px 16px; }
.cert .ic { color: var(--teal); }
.cert b { font-size: 13.5px; display: block; }
.cert span { font-size: 12px; color: var(--muted); }

/* ---------- 流程步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; counter-reset: step; }
.steps.five { grid-template-columns: repeat(5, 1fr); }
.step { position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-m); padding: 18px 16px 16px; }
.step .no { width: 26px; height: 26px; border-radius: 50%; background: var(--ink);
  color: #fff; font-size: 13px; font-weight: 700; display: flex;
  align-items: center; justify-content: center; margin-bottom: 12px; }
.step h5 { font-size: 14.5px; font-weight: 700; }
.step p { font-size: 12.5px; color: var(--muted); margin-top: 4px; line-height: 1.55; }
.step .meta { margin-top: 10px; font-size: 12px; color: var(--accent); font-weight: 600; }

/* ---------- 分栏图文 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.split img.ph { border-radius: var(--r-m); border: 1px solid var(--line); width: 100%; aspect-ratio: 3/2; object-fit: cover; }
.split.rev { direction: rtl; }
.split.rev > * { direction: ltr; }
.split ul.tick { margin-top: 14px; display: grid; gap: 9px; }
.tick li { display: flex; gap: 9px; align-items: flex-start; font-size: 14px; color: var(--ink-2); }
.tick li .ic { color: var(--ok); width: 17px; height: 17px; margin-top: 3px; }

/* ---------- 引用/来源注 ---------- */
.src-note { font-size: 12px; color: #A09585; margin-top: 14px; }
.src-note a { color: inherit; text-decoration: underline; }

/* ---------- CTA 条 ---------- */
.cta-band { background: var(--ink); color: #fff; }
.cta-band .wrap { display: flex; align-items: center; justify-content: space-between;
  gap: 24px; padding-top: 40px; padding-bottom: 40px; flex-wrap: wrap; }
.cta-band h3 { font-size: 22px; font-weight: 700; }
.cta-band p { color: #C4B8AA; font-size: 14px; margin-top: 6px; }
.cta-band .acts { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
footer.site { background: var(--footer-bg); color: #A99C8C; font-size: 13.5px; }
footer.site .cols { display: grid; grid-template-columns: 2.2fr 1fr 1fr 1.4fr;
  gap: 40px; padding: 52px 0 40px; }
footer.site h5 { color: #EDE7DE; font-size: 14px; font-weight: 600; margin-bottom: 14px; }
footer.site a:hover { color: #fff; }
footer.site li { margin-bottom: 9px; }
footer.site .brand-mark { color: #fff; }
footer.site .about-txt { line-height: 1.75; margin-top: 12px; max-width: 300px; }
footer.site .contact-li { display: flex; gap: 9px; align-items: flex-start; margin-bottom: 10px; }
footer.site .contact-li .ic { width: 16px; height: 16px; margin-top: 4px; color: #948673; }
footer.site .legal { border-top: 1px solid rgba(255,255,255,.12);
  padding: 16px 0; font-size: 12px; color: #877A69; }
footer.site .legal .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 13px; font-weight: 600;
  color: var(--ink-2); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--line); border-radius: var(--r-s);
  padding: 10px 12px; font-size: 14px; font-family: inherit; color: var(--ink);
  background: #fff; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid rgba(160,90,44,.35); outline-offset: 0; border-color: var(--accent); }
.field .hint { font-size: 12px; color: var(--muted); margin-top: 5px; }

/* ---------- 面包屑 ---------- */
.crumb { font-size: 13px; color: var(--muted); padding: 18px 0 0; }
.crumb a { color: var(--steel); }
.crumb a:hover { color: var(--accent); }

/* ---------- 产品卡价格行 ---------- */
.prod-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }

/* ---------- 静态语言切换（多语言静态版页面用，details 无 JS） ---------- */
.lang-static { position: relative; flex: none; }
.lang-static > summary { list-style: none; cursor: pointer; display: inline-flex;
  align-items: center; gap: 6px; background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.28); color: #E4DCD2; font-size: 12.5px;
  padding: 5px 11px; border-radius: var(--r-s); white-space: nowrap; line-height: 1.4; }
.lang-static > summary::-webkit-details-marker { display: none; }
.lang-static > summary:hover { color: #fff; border-color: rgba(255,255,255,.6); }
.lang-static[open] > summary { color: #fff; border-color: rgba(255,255,255,.6); }
.lang-static > .lang-menu { display: block; position: absolute; right: 0;
  top: calc(100% + 6px); z-index: 60; background: #fff; color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--r-s);
  box-shadow: var(--shadow-1); min-width: 176px; padding: 6px 0; }
.lang-static .lang-menu a { display: flex; width: 100%; justify-content: space-between;
  gap: 10px; padding: 10px 15px; font-size: 13.5px; color: var(--ink);
  min-height: 40px; align-items: baseline; }
.lang-static .lang-menu a:hover { background: var(--paper); }
.lang-static .lang-menu a.on { color: var(--accent); font-weight: 600; }
.lang-static .lang-menu .en-name { color: var(--muted); font-size: 11.5px; }

/* ---------- 通用表格滚动（人性化自适应） ---------- */
.tbl-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ---------- 汉堡导航（≤920px 抽屉） ---------- */
.nav-burger { display: none; width: 44px; height: 44px; margin-left: auto;
  background: none; border: 1px solid var(--line); border-radius: var(--r-s);
  align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
.nav-burger span { display: block; width: 20px; height: 2px; background: var(--ink);
  transition: transform .15s, opacity .15s; }
.nav.open .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav-burger span:nth-child(2) { opacity: 0; }
.nav.open .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 响应式 ---------- */
@media (max-width: 1180px) {
  .topbar .hide-s { display: none; }
}
@media (max-width: 1120px) {
  .nav .wrap { gap: 8px 18px; }
  .brand-cn { display: none; }
  .nav-links a { padding: 7px 9px; font-size: 13.5px; }
}
@media (max-width: 920px) {
  .nav-burger { display: inline-flex; }
  .nav .wrap { position: relative; }
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0;
    z-index: 49; flex-direction: column; gap: 0; margin: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-1); padding: 8px 0; max-height: 70vh; overflow-y: auto; }
  .nav.open .nav-links { display: flex; }
  .nav-links a { padding: 13px 22px; font-size: 15px; border-radius: 0; }
  .g4 { grid-template-columns: repeat(2, 1fr); }
  .steps, .steps.five { grid-template-columns: repeat(3, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-stats .st:nth-child(3) { border-left: 0; }
  .hero-stats .st:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.14); }
  footer.site .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav .wrap { gap: 14px; }
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 24px; }
  .steps, .steps.five { grid-template-columns: 1fr 1fr; }
  .statbar { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 30px; }
  .hero-inner { padding: 64px 0; }
  .section { padding: 48px 0; }
  .form-grid { grid-template-columns: 1fr; }
  footer.site .cols { grid-template-columns: 1fr; gap: 28px; }
  .topbar-left .hide-m { display: none; }
}
@media (max-width: 560px) {
  .nav-cta { display: none; }
  .hero-stats .num { font-size: 20px; }
  .hero-stats .st { padding: 14px 16px; }
  .lang-menu { position: fixed; top: var(--topbar-h); left: 12px; right: 12px;
    min-width: 0; }
}