/* ==========================================================================
   BLACKARMOR LABS — 玄甲 / Armoured Precision
   设计调性：玄甲立意：玄黑札甲 + 玄金铆线 + 朱砂封印
   字体：Cinzel / Noto Serif SC / Noto Sans SC / IBM Plex Mono
   60-30-10：玄黑 60% · 铁面与暖纸白 30% · 玄金/朱砂 10%
   单一难忘元素：首屏玄甲阵列 ARMOR MATRIX
   内页兼容层：重定义 Bootstrap 5.3 变量，让未精修模板自动跟随深色体系
   本地化字体：内网部署请把 Google Fonts 下载到 fonts/ 并改成 @font-face
   ========================================================================== */

:root {
  --ink: #07080A;
  --surface: #101318;
  --surface-2: #181D24;
  --grid: rgba(168, 178, 190, .10);
  --grid-strong: rgba(168, 178, 190, .18);
  --line: rgba(168, 178, 190, .16);
  --signal: #D9A441;
  --signal-dim: rgba(217, 164, 65, .14);
  --copper: #C5342B;
  --copper-dim: rgba(197, 52, 43, .14);
  --paper: #EDE7DA;
  --text-hi: #E9E4D8;
  --text-dim: #8A8B8E;
  --radius: 4px;
  --maxw: 1240px;

  --font-display: "Space Grotesk", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "IBM Plex Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  /* Bootstrap 5.3 变量重定义：未精修内页自动深色化 */
  --bs-body-color: #E9E4D8;
  --bs-body-bg: #07080A;
  --bs-heading-color: #E9E4D8;
  --bs-light-rgb: 22, 29, 37;
  --bs-white-rgb: 22, 29, 37;
  --bs-dark-rgb: 238, 241, 243;
  --bs-secondary-rgb: 147, 160, 174;
  --bs-primary-rgb: 70, 194, 182;
  --bs-border-color: rgba(168, 178, 190, .18);
  --bs-border-color-translucent: rgba(168, 178, 190, .18);
  --bs-emphasis-color-rgb: 232, 237, 242;
  --bs-link-color: #D9A441;
  --bs-link-hover-color: #C5342B;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 620px at 76% -12%, rgba(217, 164, 65, .075), transparent 62%),
    var(--ink);
  color: var(--text-hi);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--signal); text-decoration: none; transition: color .22s ease; }
a:hover { color: var(--copper); }
img { max-width: 100%; }
::selection { background: var(--signal); color: var(--ink); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -.028em;
  color: var(--text-hi);
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.bl-wrap { width: min(100% - 48px, var(--maxw)); margin-inline: auto; }
.bl-mono { font-family: var(--font-mono); }
.bl-sr {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------------------------------------------------------------- 进度线 */
.bl-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: var(--signal); z-index: 90; pointer-events: none;
}

/* ------------------------------------------------------------------ 导航 */
.bl-nav {
  position: sticky; top: 0; z-index: 80;
  background: rgba(7, 8, 10, .93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.bl-nav__inner {
  display: flex; align-items: center; gap: 32px;
  min-height: 72px;
}
.bl-brand { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; }
.bl-brand__mark {
  font-family: var(--font-display); font-weight: 700; font-size: 20px;
  letter-spacing: -.045em; color: var(--text-hi); line-height: 1;
}
.bl-brand__mark span { color: var(--signal); }
.bl-brand__sub {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: .18em;
  color: var(--text-dim); text-transform: uppercase; line-height: 1.5;
  padding-left: 14px; border-left: 1px solid var(--line);
}
.bl-nav__links { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.bl-nav__link {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--text-dim);
  padding: 10px 14px; white-space: nowrap;
}
.bl-nav__link:hover, .bl-nav__link.is-active { color: var(--signal); }
.bl-nav__side { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.bl-lang {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em;
  color: var(--text-dim); background: transparent;
  border: 1px solid var(--line); padding: 9px 12px; cursor: pointer;
  min-width: 52px;
}
.bl-lang:hover { color: var(--signal); border-color: var(--signal); }
.bl-nav__cta { padding: 10px 18px; font-size: 11px; }
.bl-nav__toggle {
  display: none; background: transparent; border: 1px solid var(--line);
  color: var(--text-hi); font-family: var(--font-mono); font-size: 11px;
  padding: 9px 12px; cursor: pointer;
}
.bl-nav__cms, .bl-nav__account { display: none; }
.bl-nav__cms-label {
  display: block; font-family: var(--font-mono); font-size: 9px;
  letter-spacing: .2em; text-transform: uppercase; color: var(--copper);
  padding: 18px 0 6px; margin-top: 8px; border-top: 1px solid var(--line);
}
.bl-nav__account { border-top: 1px solid var(--line); margin-top: 8px; padding-top: 4px; }

/* ------------------------------------------------------------------ 按钮 */
.bl-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 26px; border: 1px solid var(--signal); border-radius: var(--radius);
  background: var(--signal); color: var(--ink);
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  letter-spacing: .12em; text-transform: uppercase; cursor: pointer;
  transition: background .24s ease, color .24s ease, border-color .24s ease, transform .24s ease;
}
.bl-btn:hover { background: transparent; color: var(--signal); transform: translateY(-2px); }
.bl-btn--ghost { background: transparent; border-color: var(--line); color: var(--text-hi); }
.bl-btn--ghost:hover { border-color: var(--copper); color: var(--copper); background: transparent; }
.bl-btn--copper { background: var(--copper); border-color: var(--copper); color: var(--ink); }
.bl-btn--copper:hover { background: transparent; color: var(--copper); }
.bl-btn__arrow { font-family: var(--font-mono); font-size: 14px; line-height: 1; }

/* -------------------------------------------------------------- 通用小件 */
.bl-eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  letter-spacing: .22em; text-transform: uppercase; color: var(--signal);
}
.bl-eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--signal); }
.bl-eyebrow--copper { color: var(--copper); }
.bl-eyebrow--copper::before { background: var(--copper); }

.bl-chip {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em;
  color: var(--text-dim); border: 1px solid var(--line);
  padding: 8px 14px; border-radius: 100px;
}
.bl-chip:hover { color: var(--signal); border-color: var(--signal); }
.bl-chip::before { content: ""; width: 4px; height: 4px; background: var(--copper); border-radius: 50%; }

.bl-tag {
  display: inline-block; font-family: var(--font-mono); font-size: 10px;
  letter-spacing: .1em; text-transform: uppercase; color: var(--signal);
  background: var(--signal-dim); border: 1px solid rgba(217, 164, 65, .3);
  padding: 4px 9px; border-radius: 2px;
}
.bl-tag--copper { color: var(--copper); background: var(--copper-dim); border-color: rgba(197, 52, 43, .3); }

/* ---------------------------------------------------------------- 首屏 */
.bl-hero {
  position: relative; overflow: hidden;
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(transparent 0 23px, var(--grid) 23px 24px),
    linear-gradient(90deg, transparent 0 23px, var(--grid) 23px 24px);
  background-size: 24px 24px, 24px 24px;
}
.bl-hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, transparent 55%, rgba(7, 8, 10, .92) 100%);
}
.bl-hero__grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.08fr .92fr; gap: 64px;
  align-items: center; padding: 100px 0 116px;
}
.bl-hero h1 {
  font-size: clamp(3.1rem, 6.4vw, 6.9rem);
  line-height: .99; letter-spacing: -.05em; margin: 26px 0 30px;
}
.bl-hero h1 em { font-style: normal; color: var(--signal); }
.bl-hero h1 .bl-outline {
  color: transparent; -webkit-text-stroke: 1px rgba(233, 228, 216, .46);
}
.bl-hero__sub { color: var(--text-dim); font-size: 16px; max-width: 50ch; margin: 0 0 34px; }
.bl-hero__cta { display: flex; flex-wrap: wrap; gap: 12px; }
.bl-audience {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 42px;
  padding-top: 26px; border-top: 1px solid var(--line);
}
.bl-audience__label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--text-dim); margin-right: 4px;
}

/* ------------------------------------------------- LIVE 控制台（难忘元素） */
.bl-console {
  position: relative; background: var(--surface);
  border: 1px solid var(--grid-strong); border-radius: 6px;
  transform: translate(18px, 20px);
}
.bl-console::before {
  content: ""; position: absolute; top: -1px; right: -1px;
  width: 54px; height: 2px; background: var(--copper);
}
.bl-console__bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 22px; border-bottom: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-dim);
}
.bl-live { display: inline-flex; align-items: center; gap: 9px; color: var(--signal); }
.bl-live::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: var(--signal); animation: bl-pulse 1.8s infinite;
}
@keyframes bl-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .28; } }

.bl-console__scope { display: block; width: 100%; height: 128px; padding: 18px 22px 0; }
.bl-console__scope svg { width: 100%; height: 100%; overflow: visible; }
.bl-console__scope path { fill: none; stroke: var(--signal); stroke-width: 1.6; vector-effect: non-scaling-stroke; }
.bl-console__scope .bl-wave-grid { stroke: var(--grid); stroke-width: 1; }

.bl-readouts {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1px; background: var(--line);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.bl-readout { background: var(--surface); padding: 22px 22px 20px; }
.bl-readout__k {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--text-dim); min-height: 16px;
}
.bl-readout__v {
  font-family: var(--font-mono); font-size: clamp(1.7rem, 2.6vw, 2.4rem);
  font-weight: 500; letter-spacing: -.04em; color: var(--text-hi);
  line-height: 1.15; margin-top: 8px;
}
.bl-readout__v small {
  font-size: 11px; font-weight: 400; letter-spacing: .06em;
  color: var(--signal); margin-left: 6px;
}
.bl-readout--accent .bl-readout__v { color: var(--signal); }

.bl-console__foot {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 12px; padding: 15px 22px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--text-dim);
}
.bl-console__certs { display: flex; flex-wrap: wrap; gap: 8px; }
.bl-console__certs span { border: 1px solid var(--line); padding: 3px 8px; color: var(--copper); }
.bl-console__sync { color: var(--signal); }

/* -------------------------------------------------------------- 区块通用 */
.bl-section { position: relative; padding: 104px 0; border-bottom: 1px solid var(--line); }
.bl-section--alt { background: rgba(22, 29, 37, .48); }
.bl-section__head {
  display: grid; grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px; align-items: end; margin-bottom: 58px;
}
.bl-section__no {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .2em;
  color: var(--copper); text-transform: uppercase;
}
.bl-section h2 { font-size: clamp(2rem, 3.7vw, 3.3rem); margin: 18px 0 0; }
.bl-section__lead { color: var(--text-dim); max-width: 58ch; margin: 20px 0 0; }
.bl-section__aside {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em;
  color: var(--text-dim); text-transform: uppercase; text-align: right;
  padding-bottom: 6px; white-space: nowrap;
}
.bl-section__aside span { display: block; color: var(--signal); margin-top: 8px; }

/* ------------------------------------------------------------ 能力 6 宫格 */
.bl-caps {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--grid-strong); border: 1px solid var(--grid-strong);
}
.bl-cap {
  background: var(--ink); padding: 34px 30px 38px;
  transition: background .3s ease, transform .3s ease;
  min-height: 218px; display: flex; flex-direction: column;
}
.bl-cap:hover { background: var(--surface); }
.bl-cap__code {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .2em;
  color: var(--signal); margin-bottom: 28px;
}
.bl-cap h3 { font-size: 20px; margin: 0 0 12px; letter-spacing: -.02em; }
.bl-cap p { color: var(--text-dim); font-size: 13.5px; margin: 0; line-height: 1.65; }
.bl-cap__line { margin-top: auto; padding-top: 24px; }
.bl-cap__line::after { content: ""; display: block; width: 30px; height: 1px; background: var(--copper); }

/* -------------------------------------------------------------- 产品矩阵 */
.bl-products { display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--line); }
.bl-product {
  display: grid; grid-template-columns: 68px minmax(0, 1.05fr) minmax(0, .95fr) 128px;
  gap: 28px; align-items: center; padding: 26px 16px;
  border-bottom: 1px solid var(--line);
  transition: background .28s ease, padding-left .28s ease;
}
.bl-product:hover { background: rgba(217, 164, 65, .045); padding-left: 26px; }
.bl-product__no { font-family: var(--font-mono); font-size: 12px; color: var(--copper); letter-spacing: .12em; }
.bl-product__name { font-family: var(--font-display); font-size: 22px; font-weight: 600; letter-spacing: -.02em; }
.bl-product__name small {
  display: block; font-family: var(--font-mono); font-size: 10px; font-weight: 400;
  letter-spacing: .14em; color: var(--text-dim); text-transform: uppercase; margin-top: 6px;
}
.bl-product__desc { color: var(--text-dim); font-size: 13.5px; }
.bl-product__tags { text-align: right; display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }

.bl-featured { margin-top: 56px; }
.bl-featured__title {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .18em;
  color: var(--text-dim); text-transform: uppercase; margin-bottom: 20px;
}
.bl-featured__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.bl-featured__card {
  display: block; background: var(--surface); border: 1px solid var(--line);
  padding: 0 0 20px; overflow: hidden;
}
.bl-featured__card:hover { border-color: var(--signal); }
.bl-featured__img { aspect-ratio: 16 / 9; background: var(--surface-2); overflow: hidden; }
.bl-featured__img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bl-featured__card h4 { font-size: 16px; margin: 18px 20px 8px; letter-spacing: -.01em; }
.bl-featured__card p { color: var(--text-dim); font-size: 12.5px; margin: 0 20px; }
.bl-featured__meta {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em;
  color: var(--copper); margin: 14px 20px 0; text-transform: uppercase;
}

/* -------------------------------------------------------------- 规格表 */
.bl-spec-layout { display: grid; grid-template-columns: .68fr 1.32fr; gap: 64px; align-items: start; }
.bl-spec-note { border-left: 2px solid var(--copper); padding-left: 24px; }
.bl-spec-note h3 { font-size: 24px; margin: 0 0 16px; }
.bl-spec-note p { color: var(--text-dim); font-size: 14px; }
.bl-spec-note__list { list-style: none; padding: 0; margin: 26px 0 0; }
.bl-spec-note__list li {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em;
  color: var(--text-dim); padding: 9px 0; border-bottom: 1px dashed var(--line);
}
.bl-spec-note__list li::before { content: "> "; color: var(--signal); }

.bl-spec { width: 100%; border-collapse: collapse; }
.bl-spec th, .bl-spec td { padding: 15px 18px; border-bottom: 1px solid var(--line); text-align: left; }
.bl-spec thead th {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  letter-spacing: .18em; text-transform: uppercase; color: var(--text-dim);
  border-bottom-color: var(--grid-strong);
}
.bl-spec tbody th { font-weight: 400; font-size: 14px; color: var(--text-hi); }
.bl-spec tbody td {
  font-family: var(--font-mono); font-size: 13px; color: var(--signal); text-align: right;
}
.bl-spec tbody tr:hover { background: rgba(217, 164, 65, .04); }

/* ------------------------------------------------------------ 应用场景 */
.bl-cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.bl-case {
  background: var(--surface); border: 1px solid var(--line);
  padding: 32px 28px 34px; position: relative;
}
.bl-case::before {
  content: ""; position: absolute; top: 0; left: 0;
  width: 100%; height: 2px; background: var(--signal);
  transform: scaleX(0); transform-origin: left; transition: transform .35s ease;
}
.bl-case:hover::before { transform: scaleX(1); }
.bl-case__no { font-family: var(--font-mono); font-size: 10px; letter-spacing: .18em; color: var(--copper); }
.bl-case h3 { font-size: 21px; margin: 20px 0 12px; }
.bl-case p { color: var(--text-dim); font-size: 13.5px; margin: 0; }
.bl-case__foot {
  margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--signal);
}
.bl-news { margin-top: 56px; border-top: 1px solid var(--line); }
.bl-news__row {
  display: grid; grid-template-columns: 110px minmax(0, 1fr) 120px;
  gap: 24px; align-items: center; padding: 18px 8px;
  border-bottom: 1px solid var(--line); color: var(--text-hi);
}
.bl-news__row:hover { color: var(--signal); background: rgba(217, 164, 65, .035); }
.bl-news__date, .bl-news__tag {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em;
  color: var(--text-dim); text-transform: uppercase;
}
.bl-news__tag { color: var(--copper); text-align: right; }
.bl-news__title { font-size: 15px; }

/* -------------------------------------------------------------- 出口背书 */
.bl-trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.bl-stat { background: var(--ink); padding: 36px 26px 32px; }
.bl-stat__v {
  font-family: var(--font-mono); font-size: clamp(2.1rem, 3.4vw, 3.1rem);
  font-weight: 500; letter-spacing: -.05em; color: var(--text-hi); line-height: 1;
}
.bl-stat__v small { font-size: 13px; color: var(--signal); letter-spacing: 0; margin-left: 4px; }
.bl-stat__k {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--text-dim); margin-top: 16px;
}
.bl-certline {
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 36px;
}
.bl-certline__label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em;
  color: var(--text-dim); text-transform: uppercase; margin-right: 8px;
}
.bl-markets { margin-top: 34px; padding-top: 28px; border-top: 1px solid var(--line); }
.bl-markets__label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em;
  color: var(--text-dim); text-transform: uppercase; margin-bottom: 16px;
}
.bl-markets__list { display: flex; flex-wrap: wrap; gap: 8px; }
.bl-markets__list span {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .08em;
  color: var(--text-hi); border: 1px solid var(--line); padding: 6px 11px;
}

/* -------------------------------------------------------------- 询盘表单 */
.bl-inquiry { display: grid; grid-template-columns: .78fr 1.22fr; gap: 68px; align-items: start; }
.bl-inquiry__aside h2 { font-size: clamp(2rem, 3.4vw, 3rem); margin: 18px 0 0; }
.bl-inquiry__aside > p { color: var(--text-dim); margin: 22px 0 0; max-width: 40ch; }
.bl-inquiry__promise {
  margin-top: 38px; border-top: 1px solid var(--line); padding-top: 26px;
}
.bl-inquiry__promise dt {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--copper); margin-top: 20px;
}
.bl-inquiry__promise dd { margin: 6px 0 0; font-size: 14px; color: var(--text-hi); }
.bl-inquiry__quick { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }

.bl-form {
  background: var(--surface); border: 1px solid var(--grid-strong);
  padding: 38px 38px 34px; position: relative;
}
.bl-form::before {
  content: ""; position: absolute; top: -1px; left: -1px;
  width: 54px; height: 2px; background: var(--signal);
}
.bl-form__head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; margin-bottom: 28px; padding-bottom: 20px; border-bottom: 1px solid var(--line);
}
.bl-form__head h3 { font-size: 22px; margin: 0; }
.bl-form__head span {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em;
  color: var(--text-dim); text-transform: uppercase;
}
.bl-form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.bl-field { display: flex; flex-direction: column; min-width: 0; }
.bl-field--full { grid-column: 1 / -1; }
.bl-field label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--text-dim); margin-bottom: 9px;
}
.bl-field label .bl-req { color: var(--copper); margin-left: 3px; }
.bl-field input, .bl-field select, .bl-field textarea {
  width: 100%; background: var(--ink); border: 1px solid var(--line);
  border-radius: 3px; color: var(--text-hi);
  font-family: var(--font-body); font-size: 14px; padding: 12px 14px;
  transition: border-color .22s ease, box-shadow .22s ease;
}
.bl-field textarea { resize: vertical; min-height: 104px; }
.bl-field select { appearance: none; padding-right: 34px; cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-dim) 50%),
                    linear-gradient(135deg, var(--text-dim) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px; background-repeat: no-repeat;
}
.bl-field input::placeholder, .bl-field textarea::placeholder { color: rgba(147, 160, 174, .55); }
.bl-field input:focus, .bl-field select:focus, .bl-field textarea:focus {
  outline: none; border-color: var(--signal); box-shadow: 0 0 0 3px var(--signal-dim);
}
.bl-field option { background: var(--surface); color: var(--text-hi); }
.bl-code { display: flex; gap: 10px; align-items: stretch; }
.bl-code img { height: 44px; border: 1px solid var(--line); cursor: pointer; flex: 0 0 auto; }
.bl-code input { flex: 1 1 auto; }
.bl-form__foot {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 16px; margin-top: 26px; padding-top: 24px; border-top: 1px solid var(--line);
}
.bl-form__note { font-family: var(--font-mono); font-size: 10px; letter-spacing: .06em; color: var(--text-dim); }
.bl-form__status {
  display: none; margin-top: 18px; padding: 12px 16px; font-size: 13px;
  border: 1px solid var(--line); border-radius: 3px;
}
.bl-form__status.is-on { display: block; }
.bl-form__status.is-ok { color: var(--signal); border-color: rgba(217, 164, 65, .4); background: var(--signal-dim); }
.bl-form__status.is-err { color: var(--copper); border-color: rgba(197, 52, 43, .4); background: var(--copper-dim); }
.bl-btn[disabled] { opacity: .55; cursor: wait; transform: none; }

/* ------------------------------------------------------------------ 页脚 */
.bl-footer { background: var(--surface); border-top: 1px solid var(--line); padding: 72px 0 0; }
.bl-footer__grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr .9fr; gap: 48px; }
.bl-footer h4 {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  letter-spacing: .18em; text-transform: uppercase; color: var(--signal); margin: 0 0 22px;
}
.bl-footer__brand {
  font-family: var(--font-display); font-size: 26px; font-weight: 700;
  letter-spacing: -.04em; margin-bottom: 14px;
}
.bl-footer__brand span { color: var(--signal); }
.bl-footer__logo {
  display: inline-block; max-height: 36px; max-width: 180px;
  background: var(--paper); padding: 6px 10px; border-radius: 2px;
}
.bl-footer p, .bl-footer li { color: var(--text-dim); font-size: 13px; line-height: 1.9; }
.bl-footer ul { list-style: none; padding: 0; margin: 0; }
.bl-footer a { color: var(--text-dim); }
.bl-footer a:hover { color: var(--signal); }
.bl-footer__qr { text-align: center; }
.bl-footer__qr p { font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; margin-top: 10px; }
.bl-footer__qr img { max-width: 108px; background: var(--paper); padding: 5px; }
.bl-footer__bottom {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 14px; margin-top: 56px; padding: 22px 0;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em;
  color: var(--text-dim);
}
.bl-mobilebar {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 70;
  background: var(--surface); border-top: 1px solid var(--line);
}
.bl-mobilebar a {
  flex: 1; text-align: center; padding: 14px 4px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em;
  color: var(--text-dim); text-transform: uppercase;
}
.bl-mobilebar a + a { border-left: 1px solid var(--line); }
.bl-mobilebar a:first-child { color: var(--signal); }
.bl-float { display: flex; flex-direction: column; gap: 8px; position: fixed; right: 22px; bottom: 26px; z-index: 65; }
.bl-float a {
  width: 42px; height: 42px; display: grid; place-items: center;
  background: var(--surface); border: 1px solid var(--line); color: var(--text-dim);
  font-family: var(--font-mono); font-size: 11px;
}
.bl-float a:hover { color: var(--signal); border-color: var(--signal); }

/* -------------------------------------------------------- 内页栏目头 / 面包屑 */
.bl-pagehead {
  --bl-head-img: none;
  position: relative; overflow: hidden;
  border-bottom: 1px solid var(--line);
  background-color: var(--surface);
  background-image:
    linear-gradient(rgba(7, 8, 10, .84), rgba(7, 8, 10, .94)),
    var(--bl-head-img);
  background-size: cover, cover;
  background-position: center, center;
}
.bl-pagehead::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(transparent 0 23px, var(--grid) 23px 24px),
    linear-gradient(90deg, transparent 0 23px, var(--grid) 23px 24px);
  background-size: 24px 24px, 24px 24px;
  opacity: .5;
}
.bl-pagehead__inner { position: relative; z-index: 1; padding: 76px 0 66px; }
.bl-pagehead__idx {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em;
  text-transform: uppercase; color: var(--copper);
}
.bl-pagehead h1 { font-size: clamp(2.2rem, 4.4vw, 3.8rem); margin: 18px 0 10px; }
.bl-pagehead p { color: var(--text-dim); margin: 0; font-size: 15px; }
.bl-crumb {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em;
  color: var(--text-dim); padding: 18px 0; margin-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.bl-crumb a { color: var(--signal); }

.bl-msg { background: var(--surface); border: 1px solid var(--line); padding: 24px 28px; margin-bottom: 14px; }
.bl-msg__head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; align-items: baseline; }
.bl-msg__name { font-family: var(--font-display); font-size: 17px; font-weight: 600; }
.bl-msg__date, .bl-msg__meta { font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; color: var(--text-dim); }
.bl-msg__body { color: var(--text-hi); font-size: 14px; margin: 14px 0; line-height: 1.75; }
.bl-msg__reply { margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--line); color: var(--signal); font-size: 13.5px; }

/* -------------------------------------------------------------- 滚动显现 */
.bl-reveal { opacity: 1; transform: none; }
html.bl-js .bl-reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
html.bl-js .bl-reveal.in { opacity: 1; transform: none; }
html.bl-js .bl-reveal[data-delay="1"] { transition-delay: .06s; }
html.bl-js .bl-reveal[data-delay="2"] { transition-delay: .12s; }
html.bl-js .bl-reveal[data-delay="3"] { transition-delay: .18s; }

/* ------------------------------------------------- 内页兼容层（未精修模板） */
.container.pages { max-width: var(--maxw); padding-top: 48px; padding-bottom: 72px; }
.card, .list-group-item, .modal-content, .dropdown-menu {
  background: var(--surface) !important; border-color: var(--line) !important; color: var(--text-hi) !important;
}
.card-title, .card-title a, .dropdown-item { color: var(--text-hi) !important; }
.card-text, .form-label, .text-secondary { color: var(--text-dim) !important; }
.form-control, .form-select, .form-check-input {
  background: var(--ink) !important; border-color: var(--line) !important; color: var(--text-hi) !important;
}
.form-control:focus, .form-select:focus { border-color: var(--signal) !important; box-shadow: 0 0 0 3px var(--signal-dim) !important; }
.btn-info, .btn-primary { background: var(--signal) !important; border-color: var(--signal) !important; color: var(--ink) !important; }
.btn-light, .btn-outline-secondary { background: transparent !important; border-color: var(--line) !important; color: var(--text-hi) !important; }
.page-link { background: var(--surface) !important; border-color: var(--line) !important; color: var(--text-hi) !important; }
.page-item.active .page-link { background: var(--signal) !important; border-color: var(--signal) !important; color: var(--ink) !important; }
.text-light { color: var(--text-hi) !important; }
.text-bg-light, .text-bg-info, .text-bg-warning, .text-bg-danger {
  background: var(--surface-2) !important; color: var(--signal) !important;
}
.border-bottom-dashed, .border-top-dashed { border-color: var(--line) !important; }
.navbar.bg-light { background: var(--ink) !important; }
.bg-white, .bg-light { background-color: var(--ink) !important; }
.wow { visibility: visible !important; animation: none !important; opacity: 1 !important; }

/* -------------------------------------------------------------- 响应式 */
@media (max-width: 1200px) {
  .bl-nav__links { gap: 0; }
  .bl-nav__link { padding: 10px 9px; font-size: 10px; }
  .bl-hero__grid { gap: 40px; }
  .bl-console { transform: translate(8px, 12px); }
  .bl-inquiry { gap: 44px; }
  .bl-footer__grid { gap: 32px; }
}

@media (max-width: 992px) {
  .bl-nav__links { display: none; }
  .bl-nav__toggle { display: inline-block; order: 3; }
  .bl-nav__links.is-open {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: 72px; left: 0; right: 0;
    background: var(--surface); border-bottom: 1px solid var(--line);
    padding: 12px 24px 20px; gap: 2px;
  }
  .bl-nav__link { padding: 12px 0; font-size: 12px; border-bottom: 1px solid var(--line); }
  .bl-nav__links.is-open .bl-nav__cms,
  .bl-nav__links.is-open .bl-nav__account { display: block; }
  .bl-nav__links.is-open .bl-nav__cms .bl-nav__link,
  .bl-nav__links.is-open .bl-nav__account .bl-nav__link { display: block; }
  .bl-nav__side { margin-left: auto; }
  .bl-caps, .bl-cases { grid-template-columns: repeat(2, 1fr); }
  .bl-trust { grid-template-columns: repeat(2, 1fr); }
  .bl-spec-layout { grid-template-columns: 1fr; gap: 40px; }
  .bl-inquiry { grid-template-columns: 1fr; gap: 40px; }
  .bl-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  html { scroll-padding-top: 72px; }
  .bl-wrap { width: min(100% - 36px, var(--maxw)); }
  .bl-nav__inner { min-height: 64px; gap: 14px; }
  .bl-brand__sub { display: none; }
  .bl-nav__cta { display: none; }
  .bl-nav__links.is-open { top: 64px; }
  .bl-hero__grid {
    grid-template-columns: 1fr; gap: 44px; padding: 68px 0 80px; text-align: center;
  }
  .bl-hero h1 { font-size: clamp(2.6rem, 11vw, 4.2rem); margin: 20px 0 24px; }
  .bl-hero__sub { margin-inline: auto; font-size: 15px; }
  .bl-hero__cta, .bl-audience { justify-content: center; }
  .bl-eyebrow { justify-content: center; }
  .bl-console { transform: none; text-align: left; }
  .bl-section { padding: 72px 0; }
  .bl-pagehead__inner { padding: 54px 0 44px; }
  .bl-section__head { grid-template-columns: 1fr; gap: 16px; margin-bottom: 40px; }
  .bl-section__aside { text-align: left; }
  .bl-caps { grid-template-columns: 1fr; }
  .bl-cap { min-height: 0; padding: 26px 24px 28px; }
  .bl-cap__code { margin-bottom: 18px; }
  .bl-product {
    grid-template-columns: 42px minmax(0, 1fr); gap: 14px; padding: 22px 8px;
  }
  .bl-product__desc, .bl-product__tags { grid-column: 2; text-align: left; align-items: flex-start; }
  .bl-featured__grid { grid-template-columns: 1fr; }
  .bl-cases { grid-template-columns: 1fr; }
  .bl-news__row { grid-template-columns: 1fr; gap: 6px; padding: 16px 4px; }
  .bl-news__tag { text-align: left; }
  .bl-trust { grid-template-columns: 1fr 1fr; }
  .bl-stat { padding: 26px 20px; }
  .bl-form { padding: 26px 22px; }
  .bl-form__grid { grid-template-columns: 1fr; }
  .bl-form__foot { flex-direction: column; align-items: stretch; }
  .bl-form__foot .bl-btn { width: 100%; }
  .bl-footer { padding-top: 56px; }
  .bl-footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .bl-footer__qr { text-align: left; }
  .bl-footer__bottom { margin-top: 36px; }
  .bl-float { display: none; }
  .bl-mobilebar { display: flex; }
  body { padding-bottom: 52px; }
}

@media (max-width: 480px) {
  .bl-wrap { width: min(100% - 28px, var(--maxw)); }
  .bl-readouts { grid-template-columns: 1fr 1fr; }
  .bl-readout { padding: 16px 14px; }
  .bl-readout__v { font-size: 1.5rem; }
  .bl-console__foot { font-size: 9px; }
  .bl-btn { padding: 13px 18px; font-size: 10px; }
  .bl-trust { grid-template-columns: 1fr; }
  .bl-product__name { font-size: 19px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .bl-reveal { opacity: 1 !important; transform: none !important; }
}