/*
Theme Name: 络基环保 Luoji Circuit
Theme URI: https://example.com/themes/luoji-circuit
Author: 焊点
Author URI: https://example.com/handian
Description: 为深圳络基环保科技有限公司定制的中文企业主题,核心识别是「印刷电路板(PCB)」:阻焊墨绿大面积底色、铜金布线铜迹(直角/45°折线,带过孔与焊盘)、丝印白元件轮廓与位号(R1/C4/U2)、极淡焊盘阵列肌理。卡片是一块「子板模块」,按钮像「贴片测试点」,数据用「信号面板」呈现,页脚顶部是金手指连接器。首屏喷淋塔被画成电路板上的元件 SCRUBBER-01,信号流程做成铜迹上通电点亮的走线。演示用虚构主题,零外链,纯 CSS 与内联 SVG。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: luoji-circuit
Tags: business, custom-menu, custom-logo, two-columns, right-sidebar, translation-ready, full-width-template
*/

/* ==================================================
   0. 变量:阻焊绿 / 板绿 / 铜金 / 丝印白 / 亮绿 / 助焊红
================================================== */
:root {
  --solder: #0b3d34;        /* 阻焊墨绿:主底色 */
  --board: #072b25;         /* 深板绿:页脚 / 深区块 */
  --solder-2: #0e4a3f;      /* 子板模块底(略亮阻焊) */
  --solder-3: #103f37;      /* 区块交替底 */

  --copper: #c8912f;        /* 铜金:布线铜迹 / 焊盘 */
  --copper-2: #e0a94a;      /* 亮铜:高光 / 大号强调字 */
  --copper-deep: #8f6620;   /* 暗铜:焊盘环 / 阴影迹 */

  --silk: #e8efe6;          /* 丝印白:正文 / 元件轮廓 */
  --silk-2: #c2d0c9;        /* 丝印次级(≥7:1 副文本) */
  --silk-line: rgba(232, 239, 230, .34);  /* 丝印细框线 */
  --silk-faint: rgba(232, 239, 230, .14);  /* 极淡丝印 */

  --green-bright: #1f7a5f;  /* 阻焊亮绿:测试点 / 通电点亮 */
  --green-lit: #35c48c;     /* 点亮高光(仅描边 / 发光) */
  --flux: #c0432f;          /* 助焊红:报警 / 关键测试点 */
  --flux-2: #e0644f;        /* 助焊红亮 */

  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Heiti SC", "Source Han Sans SC", "WenQuanYi Micro Hei", sans-serif;
  --mono: "SFMono-Regular", "Roboto Mono", "DejaVu Sans Mono", "Consolas", "Courier New", monospace;

  --radius: 2px;
  --wrap: 1160px;
  --gap: clamp(16px, 2.4vw, 26px);
}

/* ==================================================
   1. 基础 / 板材底纹
================================================== */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--silk);
  background-color: var(--solder);
  /* 极淡 PCB 焊盘阵列点纹肌理 */
  background-image:
    radial-gradient(circle 1.1px at 6px 6px, rgba(200, 145, 47, .12) 0 1.1px, transparent 1.6px),
    radial-gradient(circle 1px at 19px 19px, rgba(232, 239, 230, .05) 0 1px, transparent 1.5px);
  background-size: 26px 26px, 26px 26px;
  background-position: 0 0, 13px 13px;
  word-break: break-word;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--sans);
  font-weight: 800;
  line-height: 1.3;
  color: var(--silk);
  margin: 0 0 .5em;
  letter-spacing: .005em;
}

p { margin: 0 0 1.1em; }
ul, ol { margin: 0 0 1.1em; padding-left: 1.3em; }
img { max-width: 100%; height: auto; }
a { color: var(--copper-2); text-decoration-thickness: 1.4px; text-underline-offset: 3px; }
a:hover { color: var(--green-lit); }
hr { border: 0; border-top: 1px dashed var(--silk-line); margin: 2em 0; }
strong, b { color: #fff; font-weight: 800; }
code, kbd, samp { font-family: var(--mono); background: var(--board); color: var(--copper-2); padding: .06em .38em; border-radius: 2px; font-size: .92em; }

::selection { background: var(--copper); color: #201503; }
:focus-visible { outline: 2px solid var(--copper-2); outline-offset: 2px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-left: 26px; padding-right: 26px; }

/* 等宽数字:信号 / 参数 / 位号 */
.mono, .desig, .stat-num, .stat-unit, .param-v, .bom-table td, .spec-table td,
.rep-v-num, .aside-tel, .brand-sub, .error-code { font-family: var(--mono); }
.stat-num, .param-v, .bom-table td, .spec-table td { font-variant-numeric: tabular-nums; }

/* 位号丝印小标(R1 / C4 / U2 / TP1) */
.desig {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .12em;
  color: var(--copper-2);
  text-transform: uppercase;
}

/* 无障碍 */
.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px; width: 1px;
  overflow: hidden; position: absolute !important;
  word-wrap: normal !important;
}
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--copper); color: #201503; font-weight: 700;
  padding: .6em 1.2em; border-radius: var(--radius);
}
.skip-link:focus { left: 8px; top: 8px; }

/* ==================================================
   2. 通用组件:按钮 / kicker / 标题 / 位号块
================================================== */
/* 按钮 = 贴片测试点:金环 + 丝印字,hover 亮绿点亮如通电 */
.btn {
  --b-bg: transparent;
  --b-fg: var(--silk);
  --b-ring: var(--copper);
  display: inline-flex; align-items: center; gap: .5em;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: .02em;
  color: var(--b-fg);
  background: var(--b-bg);
  border: 1.5px solid var(--b-ring);
  border-radius: var(--radius);
  padding: .62em 1.4em;
  cursor: pointer;
  text-decoration: none;
  position: relative;
  transition: color .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease, transform .12s ease;
}
.btn::before {  /* 测试点小焊环 */
  content: "";
  width: 8px; height: 8px; flex: none;
  border-radius: 50%;
  border: 2px solid var(--b-ring);
  background: transparent;
  transition: background .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.btn:hover {
  color: #fff;
  border-color: var(--green-lit);
  box-shadow: 0 0 0 1px rgba(53, 196, 140, .4), 0 0 16px -4px rgba(53, 196, 140, .7);
  transform: translateY(-1px);
}
.btn:hover::before { background: var(--green-lit); border-color: var(--green-lit); box-shadow: 0 0 8px var(--green-lit); }
.btn:active { transform: translateY(0); }
/* 主按钮:平涂铜金 + 深字 */
.btn--copper {
  --b-bg: var(--copper);
  --b-fg: #201503;
  --b-ring: var(--copper-deep);
  font-weight: 800;
}
.btn--copper::before { border-color: #201503; }
.btn--copper:hover { --b-fg: #05231d; background: var(--copper-2); border-color: var(--copper-2); box-shadow: 0 0 0 1px rgba(224,169,74,.5), 0 6px 16px -6px rgba(200,145,47,.8); }
.btn--copper:hover::before { background: #05231d; border-color: #05231d; box-shadow: none; }

/* kicker:栏目丝印小标(位号风) */
.kicker {
  font-family: var(--mono);
  font-weight: 700;
  font-size: .78rem;
  color: var(--copper-2);
  letter-spacing: .16em;
  text-transform: uppercase;
  margin: 0 0 .7em;
  display: inline-flex;
  align-items: center;
  gap: .55em;
}
.kicker::before { content: ""; width: 20px; height: 1.5px; background: var(--copper); }

.sec-title {
  font-size: clamp(1.4rem, 3.2vw, 2rem);
  font-weight: 800;
  color: var(--silk);
  margin: 0 0 .2em;
  letter-spacing: .01em;
}
.sec-lead { color: var(--silk-2); max-width: 62ch; margin: 0 0 1.7em; }

.sec-head { margin-bottom: 34px; }

/* 区块通用留白 */
.section { padding: clamp(46px, 7vw, 84px) 0; position: relative; }
.section--deep { background: var(--board); }
.section--alt { background: var(--solder-3); }

/* ==================================================
   3. 铜迹布线:走线带 / 过孔 / 焊盘
================================================== */
/* 区块之间的全幅铜迹走线带 */
.trace-band { display: block; width: 100%; height: 46px; }
.trace-band svg { display: block; width: 100%; height: 100%; }
.t-wire { fill: none; stroke: var(--copper); stroke-width: 2.4; stroke-linejoin: round; stroke-linecap: round; }
.t-wire-2 { fill: none; stroke: var(--copper-deep); stroke-width: 1.2; stroke-linejoin: round; }
.t-pad { fill: var(--copper); stroke: var(--copper-deep); stroke-width: 1; }
.t-via { fill: var(--board); stroke: var(--copper); stroke-width: 2; }
.t-tp { fill: none; stroke: var(--green-bright); stroke-width: 2; }
.t-tp-r { fill: none; stroke: var(--flux); stroke-width: 2; }

/* 通电点亮走线(信号流) */
.t-current {
  fill: none;
  stroke: var(--green-lit);
  stroke-width: 2.4;
  stroke-linecap: round;
  filter: drop-shadow(0 0 3px rgba(53, 196, 140, .8));
}

/* ==================================================
   4. 页头 / 导航
================================================== */
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: rgba(7, 43, 37, .92);
  backdrop-filter: saturate(1.15) blur(3px);
  border-bottom: 1.5px solid var(--copper);
}
.site-header::after {  /* 页头下沿铜迹小焊盘点 */
  content: "";
  position: absolute; left: 0; right: 0; bottom: -1.5px; height: 1.5px;
  background-image: radial-gradient(circle 2.2px at center, var(--copper-2) 0 2.2px, transparent 2.6px);
  background-size: 30px 100%;
  opacity: .7;
}
.site-header.is-scrolled { box-shadow: 0 6px 20px -8px rgba(0, 0, 0, .6); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; padding-top: 13px; padding-bottom: 13px;
}
.site-brand { display: flex; align-items: center; gap: 12px; min-width: 0; text-decoration: none; }
.brand-mark { flex: none; }
.custom-logo { max-height: 44px; width: auto; }
.brand-text { text-decoration: none; line-height: 1.16; display: block; }
.brand-name {
  display: block;
  font-weight: 800;
  font-size: 1.28rem;
  color: var(--silk);
  letter-spacing: .02em;
}
.brand-sub {
  display: block;
  font-size: .64rem;
  letter-spacing: .22em;
  color: var(--copper-2);
  text-transform: uppercase;
}

.site-nav { display: flex; align-items: center; }
.primary-menu, .footer-menu { list-style: none; margin: 0; padding: 0; }
.primary-menu { display: flex; align-items: center; gap: 2px; }
.primary-menu li { position: relative; }
.primary-menu a {
  display: block;
  font-weight: 700;
  font-size: 1rem;
  color: var(--silk);
  text-decoration: none;
  padding: .5em .82em;
  border-radius: var(--radius);
  border: 1px solid transparent;
}
.primary-menu a:hover,
.primary-menu .current-menu-item > a,
.primary-menu .current_page_item > a {
  color: var(--copper-2);
  border-color: var(--silk-line);
}
.primary-menu .sub-menu {
  list-style: none; margin: 0; padding: 6px;
  position: absolute; left: 0; top: 100%; min-width: 210px;
  background: var(--board);
  border: 1px solid var(--copper);
  border-radius: var(--radius);
  box-shadow: 0 10px 26px -8px rgba(0, 0, 0, .7);
  display: none; z-index: 5;
}
.primary-menu li:hover > .sub-menu,
.primary-menu li:focus-within > .sub-menu { display: block; }
.primary-menu .sub-menu a { font-size: .94rem; }

.nav-toggle {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 46px; height: 40px; padding: 8px 9px;
  background: var(--solder-2); border: 1.5px solid var(--copper);
  border-radius: var(--radius); cursor: pointer;
}
.nav-toggle .bar { display: block; height: 2px; width: 100%; background: var(--copper-2); transition: transform .2s ease, opacity .2s ease; }
.nav-open .nav-toggle .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle .bar:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==================================================
   5. 首屏 Hero
================================================== */
.hero { padding: clamp(40px, 6vw, 76px) 0 clamp(30px, 4vw, 54px); position: relative; overflow: hidden; }
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}
.slogan-chip {
  display: inline-flex; align-items: center; gap: .55em;
  font-family: var(--mono);
  font-size: .78rem; letter-spacing: .08em;
  color: var(--copper-2);
  border: 1px solid var(--copper);
  border-radius: var(--radius);
  padding: .38em .8em;
  margin-bottom: 20px;
  background: rgba(200, 145, 47, .07);
}
.slogan-chip .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green-lit); box-shadow: 0 0 7px var(--green-lit); flex: none; }
.hero-title {
  font-size: clamp(2rem, 5.6vw, 3.4rem);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: .01em;
  margin: 0 0 .5em;
}
.hero-title .line { display: block; }
.hero-title .mark { color: var(--copper-2); }
.hero-title .lit { color: var(--green-lit); position: relative; }
.hero-lede { color: var(--silk-2); font-size: 1.06rem; max-width: 52ch; margin: 0 0 1.5em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 20px; }
.hero-tags { font-family: var(--mono); font-size: .8rem; color: var(--silk-2); letter-spacing: .02em; margin: 0; }
.hero-tags::before { content: "// "; color: var(--copper); }

.hero-figure { margin: 0; position: relative; }
.hero-figure svg { display: block; width: 100%; height: auto; }
.hero-cap {
  font-family: var(--mono);
  font-size: .74rem; letter-spacing: .06em;
  color: var(--silk-2);
  margin-top: 12px; text-align: center;
}

/* ==================================================
   6. 子板模块卡片(通用)
================================================== */
.module {
  position: relative;
  background-color: var(--solder-2);
  /* 四角焊盘 */
  background-image:
    radial-gradient(circle 3.4px at 12px 12px, var(--copper) 0 2.6px, var(--copper-deep) 2.6px 3.4px, transparent 3.8px),
    radial-gradient(circle 3.4px at calc(100% - 12px) 12px, var(--copper) 0 2.6px, var(--copper-deep) 2.6px 3.4px, transparent 3.8px),
    radial-gradient(circle 3.4px at 12px calc(100% - 12px), var(--copper) 0 2.6px, var(--copper-deep) 2.6px 3.4px, transparent 3.8px),
    radial-gradient(circle 3.4px at calc(100% - 12px) calc(100% - 12px), var(--copper) 0 2.6px, var(--copper-deep) 2.6px 3.4px, transparent 3.8px);
  background-repeat: no-repeat;
  border: 1px solid var(--silk-line);
  border-radius: var(--radius);
  padding: 24px 22px 20px;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.module:hover {
  border-color: var(--copper);
  box-shadow: 0 0 0 1px rgba(200, 145, 47, .28), 0 14px 30px -18px rgba(0, 0, 0, .8);
}
.mod-desig {  /* 左上角丝印位号 */
  position: absolute; top: 9px; left: 26px;
  font-family: var(--mono); font-size: .66rem; letter-spacing: .12em;
  color: var(--copper-2); text-transform: uppercase;
}

/* ==================================================
   7. 信号面板 / 统计
================================================== */
.signal-panel {
  border: 1px solid var(--copper);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(200,145,47,.05), transparent);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 26px 22px;
  border-right: 1px dashed var(--silk-line);
  position: relative;
}
.stat:last-child { border-right: 0; }
.stat .desig { display: block; margin-bottom: 8px; }
.stat-value { display: flex; align-items: baseline; gap: .18em; }
.stat-num { font-size: clamp(1.9rem, 4.4vw, 2.7rem); font-weight: 700; color: var(--copper-2); line-height: 1; }
.stat-unit { font-size: 1rem; color: var(--silk); }
.stat-label { display: block; margin-top: 8px; color: var(--silk-2); font-size: .92rem; }

/* ==================================================
   8. 信号流程:铜迹上通电点亮
================================================== */
.flow { }
.flow-diagram { margin-top: 10px; }
.flow-diagram svg { display: block; width: 100%; height: auto; }
.flow-node-label { font-family: var(--sans); font-weight: 800; fill: var(--silk); }
.flow-sub { font-family: var(--mono); fill: var(--silk-2); }
.flow-legend {
  display: flex; flex-wrap: wrap; gap: 16px 26px;
  margin-top: 22px;
  font-family: var(--mono); font-size: .8rem; color: var(--silk-2);
}
.flow-legend span { display: inline-flex; align-items: center; gap: .5em; }
.flow-legend .sw { width: 22px; height: 3px; border-radius: 2px; }

/* ==================================================
   9. 布线工艺:步骤(层)
================================================== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.step { position: relative; }
.step .layer-tag {
  display: inline-flex; align-items: center; gap: .5em;
  font-family: var(--mono); font-size: .72rem; letter-spacing: .12em;
  color: var(--copper-2); margin-bottom: 12px;
}
.step .layer-tag .num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px;
  border: 1.5px solid var(--copper); border-radius: 50%;
  color: var(--copper-2); font-size: .9rem; font-weight: 700;
}
.step h3 { font-size: 1.14rem; margin: 0 0 .35em; }
.step p { color: var(--silk-2); margin: 0; font-size: .96rem; }

/* ==================================================
   10. 模块选型(产品)
================================================== */
.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.mod-fig {
  height: 128px;
  display: flex; align-items: center; justify-content: center;
  margin: 4px 0 14px;
}
.mod-fig svg { display: block; height: 100%; width: auto; }
.mod-fig img { max-height: 128px; width: auto; border-radius: var(--radius); }
.mod-name { font-family: var(--mono); font-size: .82rem; letter-spacing: .1em; color: var(--copper-2); margin: 0 0 .3em; }
.module h3 { font-size: 1.16rem; margin: 0 0 .5em; }
.module h3 a { color: var(--silk); text-decoration: none; }
.module h3 a:hover { color: var(--copper-2); }
.mod-desc { color: var(--silk-2); font-size: .95rem; margin: 0 0 1em; }
.spec-chips { list-style: none; margin: 0 0 1.1em; padding: 0; display: flex; flex-wrap: wrap; gap: 7px; }
.spec-chips li {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .02em;
  color: var(--silk);
  border: 1px solid var(--silk-line);
  border-radius: var(--radius);
  padding: .24em .6em;
}
.card-link {
  font-family: var(--mono); font-size: .82rem; font-weight: 700;
  color: var(--copper-2); text-decoration: none; letter-spacing: .04em;
}
.card-link:hover { color: var(--green-lit); }

/* ==================================================
   11. BOM 清单 / 参数面板
================================================== */
.bom-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: var(--gap); align-items: start; }
.bom-table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.bom-table caption {
  text-align: left; font-family: var(--mono); font-size: .74rem; letter-spacing: .12em;
  color: var(--copper-2); text-transform: uppercase; padding: 14px 16px 10px;
}
.bom-table th, .bom-table td { padding: .68em .9em; text-align: left; border-bottom: 1px dashed var(--silk-line); }
.bom-table thead th {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--silk-2); border-bottom: 1.5px solid var(--copper);
}
.bom-table tbody th { color: var(--silk); font-weight: 700; font-family: var(--mono); }
.bom-table td { color: var(--silk-2); }
.bom-table tbody tr:hover { background: rgba(200, 145, 47, .06); }
.bom-table .ref { color: var(--copper-2); }

.param-panel { padding: 20px; }
.param-panel .desig { display: block; margin-bottom: 14px; }
.param-row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--silk-line); }
.param-row:last-of-type { border-bottom: 0; }
.param-k { color: var(--silk-2); font-size: .9rem; }
.param-v { color: var(--copper-2); font-weight: 700; font-size: 1.02rem; }
.param-v .u { color: var(--silk-2); font-size: .8rem; font-weight: 400; }
.param-note { font-family: var(--mono); font-size: .74rem; color: var(--silk-2); margin: 12px 0 0; }

/* ==================================================
   12. 点亮案例:测试报告体
================================================== */
.report-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.report-card { display: flex; flex-direction: column; }
.rep-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.rep-title { font-size: 1.08rem; margin: 0; }
.rep-no { font-family: var(--mono); font-size: .68rem; letter-spacing: .06em; color: var(--silk-2); white-space: nowrap; }
.rep-rows { list-style: none; margin: 0 0 14px; padding: 0; }
.rep-row { display: grid; grid-template-columns: 5.2em 1fr; gap: 10px; padding: 7px 0; border-bottom: 1px dashed var(--silk-line); font-size: .9rem; }
.rep-row:last-child { border-bottom: 0; }
.rep-k { font-family: var(--mono); font-size: .72rem; letter-spacing: .06em; color: var(--copper-2); text-transform: uppercase; }
.rep-v { color: var(--silk-2); }
.rep-v-num { color: var(--silk); }
.pass-badge {
  display: inline-flex; align-items: center; gap: .5em;
  align-self: flex-start; margin-top: auto;
  font-family: var(--mono); font-weight: 700; font-size: .8rem; letter-spacing: .1em;
  color: var(--green-lit);
  border: 1.5px solid var(--green-bright);
  border-radius: var(--radius);
  padding: .3em .7em;
}
.pass-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green-lit); box-shadow: 0 0 7px var(--green-lit); }

/* ==================================================
   13. 工程日志(文章)
================================================== */
.entries {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--gap);
}
.entry-card { display: flex; flex-direction: column; }
.entry-meta { font-family: var(--mono); font-size: .74rem; letter-spacing: .04em; color: var(--silk-2); margin-bottom: 10px; display: flex; gap: 12px; flex-wrap: wrap; }
.entry-meta a { color: var(--silk-2); }
.entry-title { font-size: 1.14rem; margin: 0 0 .5em; }
.entry-title a { color: var(--silk); text-decoration: none; }
.entry-title a:hover { color: var(--copper-2); }
.entry-ex { color: var(--silk-2); font-size: .95rem; margin-bottom: 1em; }
.entry-ex p:last-child { margin-bottom: 0; }
.more-link { margin-top: auto; font-family: var(--mono); font-size: .82rem; font-weight: 700; color: var(--copper-2); text-decoration: none; }
.more-link:hover { color: var(--green-lit); }
.demo-badge {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .08em;
  color: var(--board); background: var(--copper-2);
  padding: .12em .5em; border-radius: 2px;
}

/* ==================================================
   14. 关于 + 供应商说明
================================================== */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(24px, 4vw, 48px); align-items: start; }
.about-copy p { color: var(--silk-2); }
.about-copy .sec-title { color: var(--silk); }
.note-card { padding: 22px 22px 20px; }
.note-card + .note-card { margin-top: 18px; }
.note-card .field-label { display: block; font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; color: var(--copper-2); text-transform: uppercase; margin-bottom: 8px; }
.note-card p { color: var(--silk); margin: 0; font-size: .96rem; }

/* ==================================================
   15. 接入我们(联系)
================================================== */
.contact-wrap {
  border: 1.5px solid var(--copper);
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 46px);
  background:
    radial-gradient(circle 4px at 18px 18px, var(--copper) 0 3px, transparent 3.4px),
    radial-gradient(circle 4px at calc(100% - 18px) 18px, var(--copper) 0 3px, transparent 3.4px),
    radial-gradient(circle 4px at 18px calc(100% - 18px), var(--copper) 0 3px, transparent 3.4px),
    radial-gradient(circle 4px at calc(100% - 18px) calc(100% - 18px), var(--copper) 0 3px, transparent 3.4px),
    linear-gradient(180deg, rgba(200,145,47,.06), transparent);
  background-repeat: no-repeat;
}
.contact-inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(24px, 4vw, 44px); align-items: center; }
.contact-inner h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); }
.contact-inner > div > p { color: var(--silk-2); }
.contact-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 20px; }
.contact-fields { list-style: none; margin: 0; padding: 0; }
.contact-fields li { display: grid; grid-template-columns: 4.4em 1fr; gap: 12px; padding: 11px 0; border-bottom: 1px dashed var(--silk-line); align-items: baseline; }
.contact-fields li:last-child { border-bottom: 0; }
.contact-fields .ck { font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; color: var(--copper-2); text-transform: uppercase; }
.contact-fields li > span:last-child { color: var(--silk); font-family: var(--mono); font-size: .92rem; }

/* ==================================================
   16. 页脚 + 金手指连接器
================================================== */
.site-footer { background: var(--board); position: relative; margin-top: 0; }
.gold-fingers {
  height: 22px;
  background:
    repeating-linear-gradient(90deg,
      var(--copper) 0 16px,
      transparent 16px 26px);
  border-bottom: 1px solid var(--copper-deep);
  opacity: .92;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1.3fr;
  gap: clamp(24px, 4vw, 48px);
  padding-top: 46px; padding-bottom: 30px;
}
.footer-title { font-size: 1.05rem; color: var(--silk); margin: 0 0 .8em; }
.footer-about p { color: var(--silk-2); font-size: .94rem; }
.footer-chip { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-slogan { color: var(--copper-2); font-family: var(--mono); font-size: .86rem; letter-spacing: .02em; }
.footer-menu li { margin-bottom: .5em; }
.footer-menu a { color: var(--silk-2); text-decoration: none; font-size: .94rem; }
.footer-menu a:hover { color: var(--copper-2); }
.footer-contact { font-style: normal; color: var(--silk-2); font-size: .94rem; }
.footer-contact span { display: block; margin-bottom: .5em; font-family: var(--mono); }
.footer-supplier { color: var(--silk-2); font-size: .86rem; border-top: 1px dashed var(--silk-line); padding-top: 20px; margin: 0; }
.footer-legal { border-top: 1px dashed var(--silk-line); padding: 18px 0 34px; }
.footer-legal p { color: var(--silk-2); font-size: .8rem; margin: 0 0 .4em; }
.footer-legal p:first-child { font-family: var(--mono); color: var(--copper-2); }

/* ==================================================
   17. 页面骨架:page-header / 布局 / 侧栏 / 分页
================================================== */
.site-main { padding-bottom: 0; }
.page-header {
  padding: clamp(38px, 5vw, 64px) 0 clamp(22px, 3vw, 34px);
  background: var(--board);
  border-bottom: 1.5px solid var(--copper);
  position: relative;
}
.page-header::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -1.5px; height: 1.5px;
  background-image: radial-gradient(circle 2.2px at center, var(--copper-2) 0 2.2px, transparent 2.6px);
  background-size: 30px 100%; opacity: .6;
}
.page-title { font-size: clamp(1.7rem, 4.2vw, 2.6rem); color: var(--silk); margin: 0 0 .25em; }
.archive-desc { color: var(--silk-2); max-width: 72ch; }
.archive-desc p:last-child { margin-bottom: 0; }

.layout-side {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: clamp(28px, 4vw, 46px);
  padding: clamp(34px, 4vw, 52px) 0 64px;
}
.layout-one { padding: clamp(34px, 4vw, 52px) 0 64px; }
.entries-col { min-width: 0; }

/* 侧栏 widget */
.widget-area { min-width: 0; }
.widget {
  margin-bottom: 24px;
  padding: 20px;
  background: var(--solder-2);
  border: 1px solid var(--silk-line);
  border-radius: var(--radius);
}
.widget-title { font-size: 1rem; color: var(--silk); margin: 0 0 .8em; padding-bottom: .5em; border-bottom: 1px solid var(--copper); }
.widget ul { list-style: none; margin: 0; padding: 0; }
.widget li { padding: .4em 0; border-bottom: 1px dashed var(--silk-line); }
.widget li:last-child { border-bottom: 0; }
.widget a { color: var(--silk-2); text-decoration: none; }
.widget a:hover { color: var(--copper-2); }
.widget p { color: var(--silk-2); font-size: .92rem; }
.log-list li a { color: var(--silk); }
.log-list li a:hover { color: var(--copper-2); }

/* 分页 */
.pagination { margin-top: 40px; }
.pagination .nav-links { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.pagination a, .pagination .current {
  display: inline-block; padding: .5em .9em;
  font-family: var(--mono); font-size: .9rem;
  border: 1px solid var(--silk-line); border-radius: var(--radius);
  text-decoration: none; color: var(--silk);
}
.pagination a:hover { border-color: var(--copper); color: var(--copper-2); }
.pagination .current { background: var(--copper); color: #201503; border-color: var(--copper-deep); font-weight: 700; }

/* ==================================================
   18. 文章 / 页面正文
================================================== */
.entry-content { font-size: 1.02rem; }
.entry-content > * { margin-bottom: 1.1em; }
.entry-content h2, .entry-content h3, .entry-content h4 { margin-top: 1.6em; }
.entry-content a { color: var(--copper-2); }
.entry-content blockquote {
  margin: 1.4em 0; padding: .5em 1.2em;
  border-left: 3px solid var(--copper);
  background: var(--board); color: var(--silk-2);
}
.entry-content img { border-radius: var(--radius); }
.entry-content ul, .entry-content ol { padding-left: 1.4em; }
.entry-content code { font-size: .9em; }
.entry-content pre { background: var(--board); border: 1px solid var(--silk-line); border-radius: var(--radius); padding: 16px; overflow: auto; }
.entry-content pre code { background: transparent; padding: 0; color: var(--silk); }
.product-thumb { margin: 0 0 1.4em; }
.product-thumb img { width: 100%; border-radius: var(--radius); }

.post-meta-line, .entry-meta { color: var(--silk-2); }
.page-header .entry-meta { margin-top: 12px; }
.post-tags { margin-top: 24px; font-family: var(--mono); font-size: .84rem; }
.post-tags a { color: var(--copper-2); }
.page-links { margin: 1.6em 0; font-family: var(--mono); }
.page-links a { border: 1px solid var(--silk-line); padding: .1em .6em; margin: 0 3px; border-radius: 2px; text-decoration: none; }

.post-nav { margin-top: 36px; padding-top: 22px; border-top: 1px dashed var(--silk-line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.post-nav a { text-decoration: none; max-width: 46%; }
.post-nav .nav-label { display: block; font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; color: var(--copper-2); text-transform: uppercase; }
.post-nav .nav-title { color: var(--silk); font-weight: 700; }

/* 评论 */
.comments-area { margin-top: 44px; padding-top: 24px; border-top: 1.5px solid var(--copper); }
.comment-list { list-style: none; margin: 0 0 24px; padding: 0; }
.comment-list li { margin-bottom: 18px; }
.comment-body { background: var(--solder-2); border: 1px solid var(--silk-line); border-radius: var(--radius); padding: 16px 18px; }
.comment-author { font-weight: 700; color: var(--silk); }
.comment-metadata a { color: var(--silk-2); font-family: var(--mono); font-size: .78rem; }
.comment-form label { display: block; font-family: var(--mono); font-size: .8rem; color: var(--silk-2); margin-bottom: 6px; }
.comment-form input[type="text"], .comment-form input[type="email"], .comment-form input[type="url"], .comment-form textarea {
  width: 100%; padding: .6em .8em; margin-bottom: 16px;
  background: var(--board); color: var(--silk);
  border: 1px solid var(--silk-line); border-radius: var(--radius);
  font-family: var(--sans);
}
.comment-form input:focus, .comment-form textarea:focus { border-color: var(--copper); outline: none; }

/* ==================================================
   19. 单品(模块)详情
================================================== */
.product-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: clamp(28px, 4vw, 46px); padding: clamp(34px, 4vw, 52px) 0 64px; align-items: start; }
.product-main { min-width: 0; }
.product-fig-fallback { display: flex; justify-content: center; padding: 20px; margin-bottom: 24px; border: 1px solid var(--silk-line); border-radius: var(--radius); background: var(--solder-2); }
.related { margin-top: 40px; padding-top: 22px; border-top: 1px dashed var(--silk-line); }
.related ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.related li a { display: inline-block; font-family: var(--mono); font-size: .86rem; padding: .4em .8em; border: 1px solid var(--silk-line); border-radius: var(--radius); text-decoration: none; color: var(--silk); }
.related li a:hover { border-color: var(--copper); color: var(--copper-2); }

.product-aside { position: sticky; top: 84px; }
.aside-panel {
  border: 1.5px solid var(--copper);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--solder-2);
}
.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 12px; }
.spec-table caption { text-align: left; font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--copper-2); padding-bottom: 12px; }
.spec-table th, .spec-table td { padding: .6em .2em; text-align: left; border-bottom: 1px dashed var(--silk-line); font-size: .9rem; vertical-align: top; }
.spec-table thead th { font-family: var(--mono); font-size: .68rem; letter-spacing: .06em; text-transform: uppercase; color: var(--silk-2); border-bottom: 1.5px solid var(--copper); }
.spec-table tbody th { color: var(--silk); font-weight: 700; width: 42%; }
.spec-table td { color: var(--silk-2); }
.spec-note { font-family: var(--mono); font-size: .72rem; color: var(--silk-2); margin: 4px 0 18px; }
.aside-cta { border-top: 1px dashed var(--silk-line); padding-top: 18px; }
.aside-cta .field-label { display: block; font-weight: 700; color: var(--silk); margin-bottom: 12px; }
.aside-cta .btn { width: 100%; justify-content: center; }
.aside-tel { display: block; text-align: center; margin-top: 12px; font-size: 1.1rem; color: var(--copper-2); letter-spacing: .04em; }
.supplier-note { font-size: .82rem; color: var(--silk-2); margin: 14px 0 0; }

/* ==================================================
   20. 404 / 空状态
================================================== */
.sec-404 { padding: clamp(50px, 8vw, 100px) 0; }
.empty-note {
  max-width: 620px; margin: 0 auto; text-align: center;
  border: 1px dashed var(--copper); border-radius: var(--radius);
  padding: clamp(30px, 5vw, 54px);
  background: var(--solder-2);
}
.empty-note svg { display: block; margin: 0 auto 18px; }
.error-code { display: inline-block; font-family: var(--mono); letter-spacing: .18em; color: var(--flux-2); margin-bottom: 8px; }
.empty-title { font-size: clamp(1.4rem, 3.4vw, 2rem); color: var(--silk); }
.empty-desc { color: var(--silk-2); max-width: 46ch; margin: 0 auto 1.4em; }
.empty-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 20px; }
.empty-note .search-form { justify-content: center; }

/* 搜索表单 */
.search-form { display: flex; gap: 10px; flex-wrap: wrap; }
.search-field-wrap { flex: 1 1 200px; }
.search-field {
  width: 100%; padding: .62em .9em;
  background: var(--board); color: var(--silk);
  border: 1px solid var(--silk-line); border-radius: var(--radius);
  font-family: var(--sans);
}
.search-field::placeholder { color: var(--silk-2); }
.search-field:focus { border-color: var(--copper); outline: none; }
.search-submit { flex: none; }

/* ==================================================
   21. 入场动画(仅 html.js 且允许动效)
================================================== */
@media (prefers-reduced-motion: no-preference) {
  html.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
  html.js .reveal.is-in { opacity: 1; transform: none; }
  html.js .reveal.delay-1 { transition-delay: .08s; }
  html.js .reveal.delay-2 { transition-delay: .16s; }
  html.js .reveal.delay-3 { transition-delay: .24s; }

  /* 铜迹通电点亮:走线绘制入场 */
  .trace-draw { stroke-dasharray: var(--dl, 400); stroke-dashoffset: var(--dl, 400); }
  html.js .is-in .trace-draw { animation: traceDraw 1.5s ease forwards; }
  @keyframes traceDraw { to { stroke-dashoffset: 0; } }

  /* 信号流:电流在铜迹上流动 */
  .t-current { stroke-dasharray: 12 16; animation: flowCurrent 1.1s linear infinite; }
  @keyframes flowCurrent { to { stroke-dashoffset: -28; } }
}
/* reduced-motion:信号迹静止点亮(仍可见) */
@media (prefers-reduced-motion: reduce) {
  .t-current { opacity: .95; }
}

/* ==================================================
   22. 响应式
================================================== */
@media (max-width: 1040px) {
  .bom-layout { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; }
}
@media (max-width: 920px) {
  .hero-inner { grid-template-columns: 1fr; gap: 30px; }
  .hero-figure { max-width: 520px; margin-left: auto; margin-right: auto; }
  .layout-side { grid-template-columns: 1fr; }
  .product-layout { grid-template-columns: 1fr; }
  .product-aside { position: static; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .site-nav { position: relative; }
  .nav-panel {
    display: none;
    position: absolute; right: 0; top: calc(100% + 14px);
    width: min(80vw, 300px);
    background: var(--board);
    border: 1.5px solid var(--copper);
    border-radius: var(--radius);
    box-shadow: 0 14px 30px -10px rgba(0, 0, 0, .7);
    padding: 10px;
  }
  .nav-open .nav-panel { display: block; }
  .primary-menu { flex-direction: column; align-items: stretch; gap: 2px; }
  .primary-menu a { padding: .72em .8em; }
  .primary-menu .sub-menu { position: static; display: block; box-shadow: none; border: 0; border-top: 1px dashed var(--silk-line); padding-left: 12px; min-width: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px dashed var(--silk-line); }
}
@media (max-width: 680px) {
  .module-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .report-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .contact-fields li { grid-template-columns: 4em 1fr; }
}
@media (max-width: 460px) {
  body { font-size: 15.5px; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat { border-right: 0 !important; border-bottom: 1px dashed var(--silk-line); }
  .stat:last-child { border-bottom: 0; }
  .contact-wrap { padding: 24px 18px; }
}