/*
Theme Name: 信笺环保 Xinjian Stamp
Theme URI: https://example.com/xinjian-stamp
Author: 邮差老康
Author URI: https://example.com
Description: 为湖州信笺环保科技有限公司(虚构演示)定制的邮票集邮风中文企业主题。信纸米白配航空红与邮政蓝,齿孔边框产品邮票、双圈邮政日戳、航空信封斜纹边、挂号条码与回执单式表单,承载喷淋塔废气治理业务的书信体叙事。
Version: 1.0.0
Requires at least: 5.9
Tested up to: 6.5
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: xinjian-stamp
Tags: business, custom-menu, custom-logo, two-columns, translation-ready
*/

/* ==========================================================
   0. 变量与基础  Postal tokens
   ========================================================== */
:root {
  --paper: #faf6ee;        /* 信纸米白 */
  --card: #fffdf8;         /* 邮票白 */
  --red: #c94f3d;          /* 航空红 */
  --red-deep: #a83e2e;
  --blue: #35597e;         /* 邮政蓝 */
  --blue-deep: #274563;
  --postmark: #6e7f8d;     /* 邮戳灰蓝(仅装饰与大字) */
  --ink: #33302b;          /* 深墨 */
  --ink-soft: #55503f;
  --green: #4a7c59;        /* 已妥投(唯一绿点缀) */
  --line: #e6ddc8;         /* 信纸线 */
  --rule: #d8cfba;
  --album: #2e3a45;        /* 集邮册衬页深色 */
  --perf-bg: var(--paper); /* 齿孔透出的底色 */
  --serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --enserif: Georgia, "Times New Roman", serif;
  --maxw: 1120px;
  --r: 2px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  background: var(--paper);
}
img { max-width: 100%; height: auto; }
a { color: var(--blue-deep); text-decoration: underline; text-decoration-color: rgba(53, 89, 126, 0.35); text-underline-offset: 3px; }
a:hover { color: var(--red-deep); text-decoration-color: currentColor; }
h1, h2, h3, h4, h5, h6 { font-family: var(--serif); font-weight: 700; line-height: 1.4; color: var(--ink); }
ul, ol { padding-left: 1.4em; }
.screen-reader-text {
  border: 0; clip: rect(1px, 1px, 1px, 1px); clip-path: inset(50%);
  height: 1px; width: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; word-wrap: normal;
}
.skip-link:focus {
  clip: auto; clip-path: none; left: 8px; top: 8px; width: auto; height: auto;
  background: var(--blue); color: #fff; padding: 8px 16px; z-index: 999; text-decoration: none;
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.en { font-family: var(--enserif); font-style: italic; letter-spacing: 0.08em; }

/* ==========================================================
   1. 航空信封斜纹边  Airmail edge
   ========================================================== */
.airmail-edge {
  height: 10px;
  background: repeating-linear-gradient(45deg,
    var(--red) 0 14px, var(--card) 14px 26px,
    var(--blue) 26px 40px, var(--card) 40px 52px);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.airmail-edge--thin { height: 6px; }

/* ==========================================================
   2. 页头  Header
   ========================================================== */
.site-header { background: var(--card); border-bottom: 1px solid var(--rule); position: relative; z-index: 60; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 22px; max-width: var(--maxw); margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 52px; height: 52px; flex: 0 0 auto; }
.brand-text { line-height: 1.3; }
.site-title { font-family: var(--serif); font-size: 22px; font-weight: 700; color: var(--ink); letter-spacing: 0.06em; }
.site-tagline { display: block; font-size: 11px; color: var(--postmark); font-family: var(--enserif); font-style: italic; letter-spacing: 0.14em; }
.main-nav ul { list-style: none; display: flex; gap: 4px; padding: 0; margin: 0; }
.main-nav a {
  display: block; padding: 8px 14px; font-size: 15px; color: var(--ink);
  text-decoration: none; border: 1px solid transparent; border-radius: var(--r);
}
.main-nav a:hover, .main-nav .current-menu-item > a, .main-nav .current_page_item > a {
  color: var(--blue-deep); border-color: var(--blue); background: rgba(53, 89, 126, 0.06);
}
.nav-toggle {
  display: none; background: var(--card); border: 1px solid var(--blue); border-radius: var(--r);
  padding: 8px 10px; cursor: pointer; color: var(--blue-deep);
}
.nav-toggle .bars { display: block; width: 20px; height: 2px; background: var(--blue-deep); position: relative; }
.nav-toggle .bars::before, .nav-toggle .bars::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: var(--blue-deep); }
.nav-toggle .bars::before { top: -6px; }
.nav-toggle .bars::after { top: 6px; }
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav { position: absolute; top: 100%; left: 0; right: 0; background: var(--card); border-bottom: 2px solid var(--blue); display: none; box-shadow: 0 12px 24px rgba(51, 48, 43, 0.12); }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; padding: 8px 0; }
  .main-nav a { padding: 12px 24px; border: 0; border-left: 3px solid transparent; border-radius: 0; }
  .main-nav a:hover { border-left-color: var(--red); background: rgba(201, 79, 61, 0.05); }
}
.site-header.scrolled { box-shadow: 0 4px 14px rgba(51, 48, 43, 0.1); }

/* ==========================================================
   3. 邮票齿孔卡  Stamp with perforation
   齿孔=圆点镂空(radial-gradient 半孔沿边),非锯齿
   ========================================================== */
.stamp {
  position: relative;
  background-color: var(--card);
  background-image:
    radial-gradient(circle, var(--perf-bg) 3.4px, rgba(0, 0, 0, 0) 4px),
    radial-gradient(circle, var(--perf-bg) 3.4px, rgba(0, 0, 0, 0) 4px),
    radial-gradient(circle, var(--perf-bg) 3.4px, rgba(0, 0, 0, 0) 4px),
    radial-gradient(circle, var(--perf-bg) 3.4px, rgba(0, 0, 0, 0) 4px);
  background-size: 13px 13px, 13px 13px, 13px 13px, 13px 13px;
  background-repeat: repeat-x, repeat-x, repeat-y, repeat-y;
  background-position: 6px -6.5px, 6px calc(100% + 6.5px), -6.5px 6px, calc(100% + 6.5px) 6px;
  padding: 16px;
  box-shadow: 0 2px 10px rgba(51, 48, 43, 0.08);
}
.stamp-inner {
  border: 1px solid var(--rule);
  padding: 18px 18px 16px;
  position: relative;
  height: 100%;
  background: var(--card);
}
.stamp--blue .stamp-inner { border-color: rgba(53, 89, 126, 0.5); }
.stamp--red .stamp-inner { border-color: rgba(201, 79, 61, 0.5); }
/* 面值角标 */
.denom {
  position: absolute; top: 10px; right: 10px; text-align: right;
  font-family: var(--serif); line-height: 1.15; z-index: 2;
}
.denom .denom-num { display: block; font-size: 26px; font-weight: 700; color: var(--red); }
.denom .denom-unit { display: block; font-size: 11px; color: var(--ink-soft); letter-spacing: 0.05em; }
.denom--blue .denom-num { color: var(--blue); }
.stamp-country {
  font-size: 12px; letter-spacing: 0.3em; color: var(--ink-soft);
  font-family: var(--serif); margin-bottom: 6px;
}
.stamp-title { font-size: 20px; margin: 6px 0 8px; }
.stamp-title a { color: var(--ink); text-decoration: none; }
.stamp-title a:hover { color: var(--red-deep); }
.stamp-note { font-size: 14px; color: var(--ink-soft); }
.stamp-figure { margin: 8px 0 10px; border: 1px solid var(--line); background: #f2f0e6; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.stamp-figure svg { display: block; width: 100%; height: auto; }

/* ==========================================================
   4. 邮戳  Postmark(灰蓝双圈日戳+波浪取消线)
   ========================================================== */
.postmark { position: absolute; width: 96px; height: 96px; top: -14px; right: -14px; transform: rotate(-3deg); opacity: 0.82; pointer-events: none; z-index: 3; }
.postmark svg { width: 100%; height: 100%; display: block; }
.postmark--left { right: auto; left: -14px; transform: rotate(2.5deg); }
.postmark--lg { width: 130px; height: 130px; }

/* 挂号 R 标签 */
.reg-tag {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1.5px solid var(--red); color: var(--red-deep);
  font-family: var(--serif); font-weight: 700; font-size: 13px;
  padding: 3px 10px; letter-spacing: 0.08em; background: var(--card); border-radius: var(--r);
}
.reg-tag .reg-r {
  display: inline-flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; border: 1.5px solid var(--red);
  font-family: var(--enserif); font-style: normal; font-size: 13px; color: var(--red);
}
/* 条码占位 */
.barcode {
  height: 30px; width: 150px;
  background: repeating-linear-gradient(90deg,
    var(--ink) 0 2px, transparent 2px 5px,
    var(--ink) 5px 6px, transparent 6px 11px,
    var(--ink) 11px 14px, transparent 14px 17px);
  opacity: 0.75;
}
.barcode-num { font-family: var(--enserif); font-style: normal; font-size: 11px; letter-spacing: 0.28em; color: var(--ink-soft); }
/* 已妥投绿戳 */
.delivered {
  display: inline-block; border: 2px solid var(--green); color: var(--green);
  font-family: var(--serif); font-weight: 700; font-size: 13px; letter-spacing: 0.2em;
  padding: 2px 10px; transform: rotate(-4deg); background: rgba(74, 124, 89, 0.05); border-radius: var(--r);
}

/* ==========================================================
   5. 信纸与区块  Letter body & sections
   ========================================================== */
.section { padding: 72px 0; }
.section--tint { background: #f4efe2; --perf-bg: #f4efe2; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.section-head { max-width: var(--maxw); margin: 0 auto 40px; padding: 0 22px; }
.section-kicker { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; color: var(--blue-deep); letter-spacing: 0.22em; font-family: var(--serif); }
.section-kicker::before { content: ""; width: 34px; height: 1px; background: var(--blue); }
.section-title { font-size: 32px; margin: 8px 0 10px; }
.section-title .en { font-size: 15px; color: var(--postmark); margin-left: 10px; font-weight: 400; }
.section-sub { color: var(--ink-soft); max-width: 640px; }
.letter-lines {
  background-image: repeating-linear-gradient(
    to bottom, transparent 0, transparent 2.05em,
    rgba(110, 127, 141, 0.18) 2.05em, rgba(110, 127, 141, 0.18) calc(2.05em + 1px));
}

/* ==========================================================
   6. Hero:一枚大邮票
   ========================================================== */
.hero { padding: 64px 0 72px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 460px) minmax(0, 1fr); gap: 56px; align-items: center; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.hero-stamp { position: relative; transform: rotate(-1.5deg); }
.hero-stamp .stamp-inner { padding: 20px; }
.hero-stamp .stamp-figure { border-color: rgba(53, 89, 126, 0.35); background: #eef1f0; }
.hero-stamp .postmark { top: -22px; right: -20px; }
.hero-letter .hello { font-family: var(--serif); font-size: 17px; color: var(--blue-deep); letter-spacing: 0.1em; margin-bottom: 12px; }
.hero-title { font-size: 42px; line-height: 1.35; margin-bottom: 16px; }
.hero-title .accent { color: var(--red); }
.hero-text { color: var(--ink-soft); max-width: 560px; margin-bottom: 26px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }
.btn {
  display: inline-block; padding: 12px 26px; font-size: 15px; font-family: var(--serif); font-weight: 700;
  letter-spacing: 0.08em; text-decoration: none; border-radius: var(--r); border: 1.5px solid var(--blue);
  color: var(--blue-deep); background: var(--card); transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 14px rgba(51, 48, 43, 0.12); text-decoration: none; }
.btn--primary { background: var(--blue); color: #fff; }
.btn--primary:hover { background: var(--blue-deep); color: #fff; }
.btn--red { border-color: var(--red); color: var(--red-deep); }
.btn--red:hover { background: var(--red); color: #fff; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 26px; border-top: 1px dashed var(--rule); padding-top: 22px; }
.stat .stat-num { font-family: var(--serif); font-size: 30px; font-weight: 700; color: var(--blue-deep); line-height: 1.2; }
.stat .stat-num sub { font-size: 13px; color: var(--ink-soft); font-weight: 400; margin-left: 2px; }
.stat .stat-label { font-size: 13px; color: var(--ink-soft); letter-spacing: 0.06em; }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-stamp { max-width: 440px; margin: 0 auto; transform: rotate(0); }
  .hero-title { font-size: 32px; }
}

/* ==========================================================
   7. 珍邮图鉴:产品邮票网格
   ========================================================== */
.stamp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.stamp-grid .stamp { transition: transform 0.2s ease, box-shadow 0.2s ease; }
.stamp-grid .stamp:hover { transform: translateY(-5px) rotate(-0.6deg); box-shadow: 0 12px 26px rgba(51, 48, 43, 0.14); }
.stamp-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.spec-chip { font-size: 12px; border: 1px solid var(--line); color: var(--ink-soft); padding: 2px 8px; background: #f7f3e8; border-radius: var(--r); }
.stamp-more { text-align: center; margin-top: 40px; }
@media (max-width: 900px) { .stamp-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .stamp-grid { grid-template-columns: 1fr; } }

/* ==========================================================
   8. 寄达流程:信件旅程
   ========================================================== */
.journey { position: relative; max-width: var(--maxw); margin: 0 auto; padding: 20px 22px 0; }
.journey-track { position: relative; height: 46px; margin: 0 40px 26px; }
.journey-line { position: absolute; left: 0; right: 0; top: 50%; border-top: 2px dashed var(--postmark); opacity: 0.65; }
.journey-env { position: absolute; top: 50%; left: 0; width: 44px; height: 30px; transform: translate(0, -50%); transition: left 2.6s cubic-bezier(0.45, 0, 0.2, 1); }
.journey.in-view .journey-env { left: calc(100% - 44px); }
.no-js .journey-env, .journey.static .journey-env { left: calc(100% - 44px); transition: none; }
.journey-env svg { display: block; width: 100%; height: 100%; filter: drop-shadow(0 2px 3px rgba(51, 48, 43, 0.2)); }
.journey-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; list-style: none; padding: 0; }
.journey-step { text-align: center; position: relative; padding-top: 14px; }
.journey-step::before {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 11px; height: 11px; border-radius: 50%; background: var(--card); border: 2.5px solid var(--blue);
}
.journey-step .postal-word { display: block; font-size: 12px; color: var(--postmark); letter-spacing: 0.2em; font-family: var(--serif); margin-bottom: 4px; }
.journey-step h3 { font-size: 19px; margin-bottom: 6px; color: var(--blue-deep); }
.journey-step p { font-size: 13.5px; color: var(--ink-soft); line-height: 1.7; }
.journey-step--last::before { background: var(--green); border-color: var(--green); }
.journey-step--last h3 { color: var(--green); }
@media (max-width: 900px) {
  .journey-track { display: none; }
  .journey-steps { grid-template-columns: 1fr; text-align: left; gap: 4px; }
  .journey-step { padding: 12px 0 12px 30px; text-align: left; border-left: 2px dashed var(--postmark); margin-left: 8px; }
  .journey-step::before { left: -7px; top: 18px; transform: none; }
}

/* ==========================================================
   9. 集邮册:案例衬页
   ========================================================== */
.album { background: var(--album); color: #e9e4d8; --perf-bg: var(--album); }
.album .section-kicker { color: #b8c6d2; }
.album .section-kicker::before { background: #b8c6d2; }
.album .section-title { color: #f4efe2; }
.album .section-sub { color: #c6bfae; }
.album-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.album .stamp { box-shadow: 0 10px 26px rgba(0, 0, 0, 0.35); }
.album .stamp:nth-child(2) { transform: rotate(0.8deg); }
.album .stamp:nth-child(3) { transform: rotate(-0.8deg); }
.case-quote { font-family: var(--serif); font-size: 14.5px; color: var(--ink-soft); border-left: 3px solid var(--line); padding-left: 12px; margin: 10px 0; line-height: 1.9; }
.case-place { font-size: 13px; color: var(--ink-soft); }
.album-hint { text-align: center; margin-top: 34px; font-size: 13px; color: #9fb0bd; letter-spacing: 0.2em; font-family: var(--serif); }
@media (max-width: 900px) { .album-grid { grid-template-columns: 1fr; max-width: 480px; } }

/* ==========================================================
   10. 供应商函
   ========================================================== */
.supplier-letter { max-width: 780px; margin: 0 auto; padding: 0 22px; }
.supplier-letter .letter-sheet { position: relative; background: var(--card); border: 1px solid var(--rule); padding: 44px 46px 36px; box-shadow: 0 4px 18px rgba(51, 48, 43, 0.08); }
.letter-sheet .postmark { top: 18px; right: 22px; }
.letter-sheet h3 { font-size: 21px; margin-bottom: 14px; color: var(--blue-deep); }
.letter-sheet p { font-family: var(--serif); font-size: 16px; line-height: 2.2; }
.letter-sheet .sign { text-align: right; margin-top: 18px; font-family: var(--serif); color: var(--ink-soft); }
@media (max-width: 620px) { .supplier-letter .letter-sheet { padding: 30px 22px; } }

/* ==========================================================
   11. 邮件动态:文章列表(信封行)
   ========================================================== */
.mail-list { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; display: grid; gap: 18px; }
.mail-item {
  background: var(--card); border: 1px solid var(--rule); border-radius: var(--r);
  padding: 20px 24px; display: grid; grid-template-columns: auto 1fr auto; gap: 20px; align-items: center;
  position: relative; overflow: hidden;
}
.mail-item::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 5px;
  background: repeating-linear-gradient(45deg, var(--red) 0 10px, transparent 10px 18px, var(--blue) 18px 28px, transparent 28px 36px);
  opacity: 0.55;
}
.mail-date { text-align: center; font-family: var(--serif); color: var(--blue-deep); border: 1.5px solid var(--blue); border-radius: 50%; width: 74px; height: 74px; display: flex; flex-direction: column; justify-content: center; font-size: 12px; line-height: 1.4; }
.mail-date .d { font-size: 20px; font-weight: 700; }
.mail-title { font-size: 19px; margin-bottom: 6px; }
.mail-title a { text-decoration: none; color: var(--ink); }
.mail-title a:hover { color: var(--red-deep); }
.mail-excerpt { font-size: 14px; color: var(--ink-soft); }
.mail-cat { font-size: 12px; color: var(--postmark); letter-spacing: 0.1em; }
.mail-item .go { font-family: var(--enserif); color: var(--blue); font-size: 14px; white-space: nowrap; }
@media (max-width: 700px) { .mail-item { grid-template-columns: 1fr; } .mail-date { display: none; } }

/* ==========================================================
   12. 回执单:表单/CTA(虚线裁切)
   ========================================================== */
.receipt-wrap { max-width: 860px; margin: 0 auto; padding: 0 22px; }
.receipt { position: relative; background: var(--card); border: 1.5px dashed var(--postmark); padding: 42px 44px 36px; }
.cutline { position: absolute; top: -12px; left: 28px; display: flex; align-items: center; gap: 8px; background: var(--paper); padding: 0 10px; font-size: 12px; color: var(--postmark); letter-spacing: 0.14em; }
.cutline svg { width: 16px; height: 16px; }
.receipt h3 { font-size: 24px; margin-bottom: 8px; }
.receipt .receipt-sub { color: var(--ink-soft); margin-bottom: 22px; }
.receipt-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 36px; align-items: start; }
.contact-lines { list-style: none; padding: 0; display: grid; gap: 12px; font-family: var(--serif); font-size: 16px; }
.contact-lines .label { display: inline-block; min-width: 84px; color: var(--blue-deep); }
.receipt-stamp-corner { text-align: center; border: 1px dashed var(--rule); padding: 18px 14px; color: var(--ink-soft); font-size: 13px; }
.receipt-stamp-corner .stamp-box { width: 84px; height: 100px; border: 1.5px dashed var(--postmark); margin: 0 auto 10px; display: flex; align-items: center; justify-content: center; color: var(--postmark); font-family: var(--serif); font-size: 12px; letter-spacing: 0.2em; writing-mode: vertical-rl; }
@media (max-width: 760px) { .receipt-grid { grid-template-columns: 1fr; } .receipt { padding: 34px 22px 28px; } }

/* ==========================================================
   13. 页脚:航空信封
   ========================================================== */
.site-footer { background: #efe9da; border-top: 1px solid var(--rule); margin-top: 72px; }
.footer-cols { display: grid; grid-template-columns: 1.4fr 1fr 1.3fr; gap: 40px; max-width: var(--maxw); margin: 0 auto; padding: 52px 22px 36px; }
.footer-h { font-size: 17px; margin-bottom: 14px; color: var(--blue-deep); }
.footer-about p, .footer-note p { font-size: 14px; color: var(--ink-soft); line-height: 2; }
.footer-menu ul { list-style: none; padding: 0; display: grid; gap: 8px; }
.footer-menu a { text-decoration: none; color: var(--ink-soft); font-size: 14px; }
.footer-menu a:hover { color: var(--red-deep); }
.footer-post { display: flex; align-items: center; gap: 14px; margin-top: 16px; flex-wrap: wrap; }
.footer-bottom { border-top: 1px dashed var(--rule); }
.footer-bottom-inner { max-width: var(--maxw); margin: 0 auto; padding: 18px 22px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; font-size: 13px; color: var(--ink-soft); }
.footer-bottom .en { color: var(--postmark); }
@media (max-width: 900px) { .footer-cols { grid-template-columns: 1fr; gap: 28px; } }

/* ==========================================================
   14. 正文页 / 归档 / 详情
   ========================================================== */
.page-hero { background: var(--card); border-bottom: 1px solid var(--rule); padding: 48px 0 40px; position: relative; }
.page-hero .wrap { position: relative; }
.page-hero .postmark { top: -10px; right: 22px; }
.page-hero h1 { font-size: 34px; }
.page-hero .crumb { font-size: 13px; color: var(--postmark); letter-spacing: 0.14em; margin-bottom: 8px; font-family: var(--serif); }
.content-cols { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 48px; max-width: var(--maxw); margin: 0 auto; padding: 56px 22px; align-items: start; }
.content-cols--single { grid-template-columns: minmax(0, 1fr); max-width: 900px; }
@media (max-width: 900px) { .content-cols { grid-template-columns: 1fr; } }
.entry { background: var(--card); border: 1px solid var(--rule); padding: 44px 46px; }
.entry-title { font-size: 30px; margin-bottom: 10px; }
.entry-meta { font-size: 13px; color: var(--postmark); letter-spacing: 0.08em; margin-bottom: 24px; font-family: var(--serif); }
.entry-content { font-size: 16px; }
.entry-content p, .entry-content ul, .entry-content ol, .entry-content blockquote { margin-bottom: 1.2em; }
.entry-content h2 { font-size: 24px; margin: 1.4em 0 0.6em; padding-left: 12px; border-left: 4px solid var(--red); }
.entry-content h3 { font-size: 20px; margin: 1.2em 0 0.5em; color: var(--blue-deep); }
.entry-content blockquote { border-left: 3px solid var(--blue); background: #f4f0e4; padding: 14px 18px; font-family: var(--serif); color: var(--ink-soft); }
.entry-content table { width: 100%; border-collapse: collapse; margin-bottom: 1.2em; }
.entry-content th, .entry-content td { border: 1px solid var(--rule); padding: 10px 12px; text-align: left; font-size: 14.5px; }
.entry-content th { background: #f1ecdd; font-family: var(--serif); }
.entry-content img { border: 1px solid var(--rule); }
.entry-tags { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 8px; }
.entry-tags a { font-size: 12.5px; border: 1px solid var(--line); padding: 3px 10px; text-decoration: none; color: var(--ink-soft); border-radius: var(--r); background: #f7f3e8; }
.entry-tags a:hover { border-color: var(--red); color: var(--red-deep); }
@media (max-width: 620px) { .entry { padding: 28px 20px; } }

/* 归档头 */
.archive-desc { color: var(--ink-soft); margin-top: 8px; max-width: 640px; }

/* 分页 */
.pagination { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 44px auto 0; padding: 0 22px; }
.pagination .page-numbers {
  display: inline-block; min-width: 40px; text-align: center; padding: 8px 12px;
  border: 1px solid var(--rule); background: var(--card); color: var(--ink); text-decoration: none;
  font-family: var(--serif); border-radius: var(--r);
}
.pagination .page-numbers.current { background: var(--blue); border-color: var(--blue); color: #fff; }
.pagination a.page-numbers:hover { border-color: var(--red); color: var(--red-deep); }

/* ==========================================================
   15. 侧栏部件
   ========================================================== */
.sidebar { display: grid; gap: 24px; }
.widget { background: var(--card); border: 1px solid var(--rule); padding: 22px 24px; position: relative; }
.widget::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: repeating-linear-gradient(45deg, var(--red) 0 9px, transparent 9px 16px, var(--blue) 16px 25px, transparent 25px 32px); opacity: 0.5; }
.widget-title { font-size: 17px; margin-bottom: 14px; color: var(--blue-deep); }
.widget ul { list-style: none; padding: 0; display: grid; gap: 8px; }
.widget li { font-size: 14px; }
.widget a { text-decoration: none; color: var(--ink-soft); }
.widget a:hover { color: var(--red-deep); }

/* ==========================================================
   16. 搜索框 / 404
   ========================================================== */
.search-form { display: flex; gap: 0; max-width: 480px; }
.search-form .search-field {
  flex: 1; padding: 11px 14px; border: 1.5px solid var(--blue); border-right: 0;
  background: var(--card); font-size: 15px; color: var(--ink); border-radius: var(--r) 0 0 var(--r); font-family: var(--sans);
}
.search-form .search-field:focus { outline: 2px solid var(--red); outline-offset: 1px; }
.search-form .search-submit {
  padding: 11px 20px; border: 1.5px solid var(--blue); background: var(--blue); color: #fff;
  font-family: var(--serif); font-size: 15px; letter-spacing: 0.1em; cursor: pointer; border-radius: 0 var(--r) var(--r) 0;
}
.search-form .search-submit:hover { background: var(--blue-deep); }
.error-404 { max-width: 720px; margin: 0 auto; text-align: center; padding: 80px 22px; }
.error-404 .lost-mark { width: 150px; margin: 0 auto 24px; opacity: 0.85; }
.error-404 h1 { font-size: 40px; margin-bottom: 10px; }
.error-404 .code { font-family: var(--enserif); color: var(--postmark); letter-spacing: 0.3em; margin-bottom: 18px; }
.error-404 p { color: var(--ink-soft); margin-bottom: 26px; }
.error-404 .search-form { margin: 0 auto; }

/* ==========================================================
   17. 产品详情:参数=面值
   ========================================================== */
.product-single { display: grid; grid-template-columns: minmax(0, 440px) minmax(0, 1fr); gap: 52px; max-width: var(--maxw); margin: 0 auto; padding: 56px 22px; align-items: start; }
@media (max-width: 900px) { .product-single { grid-template-columns: 1fr; } .product-single .stamp { max-width: 440px; margin: 0 auto; } }
.spec-table { width: 100%; border-collapse: collapse; margin: 18px 0 26px; background: var(--card); }
.spec-table caption { text-align: left; font-family: var(--serif); font-size: 14px; color: var(--postmark); padding-bottom: 8px; letter-spacing: 0.14em; }
.spec-table th, .spec-table td { border: 1px solid var(--rule); padding: 11px 14px; font-size: 14.5px; text-align: left; }
.spec-table th { width: 34%; background: #f1ecdd; font-family: var(--serif); color: var(--blue-deep); font-weight: 700; }
.spec-table td .val-denom { font-family: var(--serif); font-weight: 700; color: var(--red); font-size: 17px; margin-right: 4px; }
.product-body h2 { font-size: 22px; margin: 1.2em 0 0.5em; color: var(--blue-deep); }
.product-body p { margin-bottom: 1em; color: var(--ink-soft); }

/* ==========================================================
   18. 动效  Reveal
   ========================================================== */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.revealed { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* 评论区简洁化 */
.comments-area { margin-top: 40px; background: var(--card); border: 1px solid var(--rule); padding: 30px 34px; }
.comments-area .comments-title { font-size: 20px; margin-bottom: 18px; }
.comment-list { list-style: none; padding: 0; display: grid; gap: 18px; }
.comment-list .comment-body { border-bottom: 1px dashed var(--rule); padding-bottom: 14px; font-size: 14.5px; }
.comment-form label { display: block; font-size: 13.5px; margin-bottom: 4px; color: var(--ink-soft); }
.comment-form input[type="text"], .comment-form input[type="email"], .comment-form input[type="url"], .comment-form textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--rule); background: var(--paper); font-size: 14.5px;
  margin-bottom: 14px; border-radius: var(--r); font-family: var(--sans); color: var(--ink);
}
.comment-form input:focus, .comment-form textarea:focus { outline: 2px solid var(--blue); outline-offset: 1px; }
.comment-form .submit { padding: 11px 26px; border: 1.5px solid var(--blue); background: var(--blue); color: #fff; font-family: var(--serif); letter-spacing: 0.1em; cursor: pointer; border-radius: var(--r); }
.comment-form .submit:hover { background: var(--blue-deep); }

/* WordPress 必备类 */
.alignleft { float: left; margin: 0 20px 12px 0; }
.alignright { float: right; margin: 0 0 12px 20px; }
.aligncenter { display: block; margin: 0 auto 12px; }
.wp-caption { max-width: 100%; }
.wp-caption-text { font-size: 13px; color: var(--postmark); text-align: center; padding: 6px 0; }
.sticky .mail-title::after { content: "置顶"; font-size: 11px; color: var(--red); border: 1px solid var(--red); padding: 1px 6px; margin-left: 8px; vertical-align: middle; border-radius: var(--r); }
.gallery-caption { font-size: 13px; }
.bypostauthor { font-weight: inherit; }