@charset "UTF-8";
/* ==========================================================================
   博兰科技 · 官网设计系统
   Warm-ink neutrals + single gold accent. No neon, no AI-blue gradients.
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  /* surfaces — warm graphite: reads as panel stock, not a void */
  --ink-950: #0a0b0d;
  --ink-900: #0e1012;
  --ink-850: #131619;
  --ink-800: #191d21;
  --ink-750: #20252a;
  --ink-700: #282e34;
  --ink-650: #323941;

  /* steel — structural linework only (rules, grids, schematic strokes).
     Never used as a UI accent. */
  --steel: #74838f;
  --steel-line: rgba(148, 166, 180, 0.28);

  /* lines */
  --line: rgba(255, 255, 255, 0.09);
  --line-soft: rgba(255, 255, 255, 0.05);
  --line-strong: rgba(255, 255, 255, 0.17);

  /* single accent: signal amber */
  --gold-100: #f7ecd2;
  --gold-200: #ecd79f;
  --gold-300: #ddbd75;
  --gold: #c99c43;
  --gold-500: #a87c2a;
  --gold-600: #7d5b1c;
  --gold-glow: rgba(201, 156, 67, 0.16);

  /* text */
  --text-1: #f3f2ef;
  --text-2: #a6aeb6;
  --text-3: #717a84;
  --text-4: #4f5760;

  /* type — 自托管（见 assets/css/fonts.css，由 tools/build-fonts.py 生成）。
     中文用 Noto SC 两条线：衬线给标题"印刷标准文件"的权威感，无衬线给正文。
     IBM Plex Mono 负责数字/缩写，缺中文字形，中文自动回退到 --font-sans。
     想改成全无衬线，把 --font-display 指向 --font-sans 即可。 */
  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC",
    "STSong", "SimSun", serif;
  --font-sans: "Noto Sans SC", -apple-system, "PingFang SC",
    "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas,
    "Noto Sans SC", monospace;

  /* shape */
  --r-sm: 8px;
  --r: 14px;
  --r-lg: 20px;
  --r-xl: 28px;

  /* shadow — diffusion only, warm-tinted */
  --sh-1: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 22px -14px rgba(0, 0, 0, 0.6);
  --sh-2: 0 2px 6px rgba(0, 0, 0, 0.34), 0 26px 60px -26px rgba(0, 0, 0, 0.7);
  --sh-gold: 0 10px 34px -14px rgba(201, 156, 67, 0.5);

  --maxw: 1180px;
  --gut: 28px;
  --hdr: 72px;
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--hdr) + 16px);
}

body {
  margin: 0;
  background: var(--ink-900);
  color: var(--text-1);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.68;
  font-weight: 400;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--text-1);
}

p { margin: 0 0 12px; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul, ol { margin: 0; padding: 0; list-style: none; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: rgba(201, 156, 67, 0.3); color: #fff; }

:focus-visible {
  outline: 2px solid var(--gold-300);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 10px 18px;
  background: var(--gold);
  color: #1a1204;
  border-radius: 0 0 var(--r-sm) 0;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

/* ---------- 3. Layout primitives ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}

/* 呼吸感是这次减法的关键：区块之间要能"断一下"，
   否则再少的内容也会读成一堵墙。 */
.section { padding: 118px 0; }
.section--alt { background: var(--ink-850); }

/* Measurement rule — a recurring structural motif drawn from drafting
   convention. Ticks are decorative-but-consistent, marking where a standard
   section begins, the way a drawing marks a dimension line. */

/* ---------- 4. Type scale ---------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 16px;
}
.kicker::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--gold);
  opacity: 0.85;
}

/* CJK display type needs a smaller ceiling than Latin: Chinese glyphs are
   square and full-em, so a Latin-sized headline wraps and shouts. The serif
   stack gives headlines the authority of a printed standard document. */
.h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 64px);
  line-height: 1.26;
  letter-spacing: 0.004em;
  font-weight: 600;
}
.h2 {
  font-family: var(--font-display);
  font-size: clamp(23px, 2.9vw, 35px);
  line-height: 1.4;
  letter-spacing: 0.004em;
  font-weight: 600;
}
.h3 { font-size: 18px; font-weight: 600; }
.h4 { font-size: 15.8px; font-weight: 600; letter-spacing: 0; }
.statement blockquote { font-family: var(--font-display); font-weight: 600; }

.lead {
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-2);
  max-width: 62ch;
}
.small { font-size: 13.5px; line-height: 1.66; color: var(--text-3); }

.sect-head { max-width: 720px; margin-bottom: 44px; }
.sect-head .lead { margin-top: 16px; }

.sect-head--split {
  max-width: none;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

/* ---------- 5. Buttons ---------- */
.btn {
  --btn-bg: transparent;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 22px;
  border-radius: 100px;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
  border: 1px solid var(--line-strong);
  background: var(--btn-bg);
  color: var(--text-1);
  transition: transform 0.22s cubic-bezier(0.2, 0.7, 0.3, 1),
    background-color 0.22s, border-color 0.22s, box-shadow 0.22s, color 0.22s;
}
.btn:hover { transform: translateY(-2px); }
.btn svg { width: 16px; height: 16px; flex: none; transition: transform 0.22s; }
.btn:hover svg { transform: translateX(3px); }

.btn--primary {
  background: linear-gradient(180deg, var(--gold-200), var(--gold));
  border-color: transparent;
  color: #1b1305;
  font-weight: 600;
  box-shadow: var(--sh-gold);
}
.btn--primary:hover { box-shadow: 0 14px 40px -14px rgba(201, 156, 67, 0.66); }

.btn--ghost { background: rgba(255, 255, 255, 0.04); }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.3); }

.btn--quiet { border-color: var(--line); color: var(--text-2); padding-inline: 18px; }
.btn--quiet:hover { color: var(--text-1); border-color: var(--line-strong); }

.btn--sm { padding: 9px 16px; font-size: 13.5px; }
.btn--block { width: 100%; justify-content: center; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 500;
  color: var(--gold-300);
  transition: gap 0.2s, color 0.2s;
}
.link-arrow svg { width: 15px; height: 15px; }
.link-arrow:hover { gap: 11px; color: var(--gold-200); }

/* ---------- 6. Surfaces ---------- */
.card {
  position: relative;
  background: linear-gradient(168deg, var(--ink-800), var(--ink-850));
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 22px;
  transition: transform 0.28s cubic-bezier(0.2, 0.7, 0.3, 1),
    border-color 0.28s, box-shadow 0.28s, background-color 0.28s;
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(201, 156, 67, 0.34);
  box-shadow: var(--sh-2);
}
.card--pad-lg { padding: 30px; }

/* thin gold hairline that appears on hover */
.card--edge::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(150deg, rgba(201, 156, 67, 0.55), transparent 45%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.card--edge:hover::before { opacity: 1; }

.icon-badge {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: rgba(201, 156, 67, 0.1);
  border: 1px solid rgba(201, 156, 67, 0.24);
  color: var(--gold-300);
  flex: none;
}
.icon-badge svg { width: 21px; height: 21px; }
.icon-badge--sm { width: 36px; height: 36px; border-radius: 9px; }
.icon-badge--sm svg { width: 17px; height: 17px; }

.tag {
  padding: 4px 11px;
  border-radius: 100px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--line-soft);
  white-space: nowrap;
}
/* 标签一律中性。分类标签是元数据，不是重点——早期版本把它染成金色，
   结果整页金色通胀，真正该被看见的"4 小时到场"反而淹没在标签里。 */
.tag--gold {
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.045);
  border-color: var(--line-soft);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px 5px 10px;
  border-radius: 100px;
  font-size: 12.5px;
  color: var(--gold-200);
  background: rgba(201, 156, 67, 0.08);
  border: 1px solid rgba(201, 156, 67, 0.22);
}
.pill .dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--gold-300);
  box-shadow: 0 0 0 3px rgba(201, 156, 67, 0.18);
}

/* ---------- 7. Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  /* must stay above .drawer (120) so the close button remains tappable */
  z-index: 130;
  height: var(--hdr);
  display: flex;
  align-items: center;
  transition: background-color 0.3s, border-color 0.3s, backdrop-filter 0.3s, height 0.3s;
  border-bottom: 1px solid transparent;
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(900px 300px at 22% 0%, rgba(201, 156, 67, 0.1), transparent 70%);
  opacity: 0.7;
  pointer-events: none;
}
.site-header.is-scrolled {
  background: rgba(11, 13, 17, 0.82);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom-color: var(--line);
  height: 64px;
}
.site-header > * { position: relative; }
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
}

.brand { display: flex; align-items: center; gap: 11px; flex: none; }
.brand__mark { width: 34px; height: 34px; flex: none; color: var(--gold); }
.brand__txt { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-1);
}
.brand__sub {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* The header lives inside a max-width container, so the nav must never be
   allowed to shrink and wrap its CJK labels. flex:0 0 auto + nowrap keeps the
   row intact; below 1180px the whole nav collapses into the drawer instead. */
.nav { display: flex; align-items: center; gap: 2px; flex: 0 0 auto; }
.nav__link {
  position: relative;
  padding: 8px 12px;
  font-size: 14.5px;
  color: var(--text-2);
  border-radius: 8px;
  white-space: nowrap;
  transition: color 0.2s, background-color 0.2s;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: 2px;
  height: 1.5px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.26s cubic-bezier(0.2, 0.7, 0.3, 1);
  border-radius: 2px;
}
.nav__link:hover { color: var(--text-1); }
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--text-1); }

.header-actions { display: flex; align-items: center; gap: 12px; flex: none; }

.burger {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  place-items: center;
  color: var(--text-1);
}
.burger svg { width: 18px; height: 18px; }

/* mobile drawer */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(8, 9, 12, 0.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: calc(var(--hdr) + 24px) var(--gut) 40px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s, transform 0.28s, visibility 0.28s;
  overflow-y: auto;
}
.drawer.is-open { opacity: 1; transform: none; visibility: visible; }
.drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 2px;
  font-size: 18px;
  font-weight: 500;
  color: var(--text-1);
  border-bottom: 1px solid var(--line-soft);
}
.drawer__link span.idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-4);
  letter-spacing: 0.1em;
}
.drawer__link[aria-current="page"] { color: var(--gold-200); }
.drawer__foot { margin-top: 26px; display: grid; gap: 12px; }

/* ---------- 8. Hero ---------- */
.hero {
  position: relative;
  min-height: min(88vh, 840px);
  display: flex;
  align-items: center;
  padding: calc(var(--hdr) + 56px) 0 48px;
  overflow: hidden;
  isolation: isolate;
}
.hero__bg { position: absolute; inset: 0; z-index: -2; pointer-events: none; }
.hero__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(760px 460px at 16% 4%, rgba(201, 156, 67, 0.15), transparent 62%),
    radial-gradient(620px 420px at 88% 18%, rgba(125, 91, 28, 0.14), transparent 64%),
    radial-gradient(900px 520px at 50% 108%, rgba(201, 156, 67, 0.07), transparent 62%);
}
/* fine grid, masked to fade out */
.hero__grid {
  position: absolute;
  inset: -10% -2%;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(70% 62% at 50% 34%, #000 20%, transparent 78%);
  mask-image: radial-gradient(70% 62% at 50% 34%, #000 20%, transparent 78%);
  opacity: 0.85;
}
.hero__canvas {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  opacity: 0.75;
}
/* film grain */
.hero__grain {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.32;
  mix-blend-mode: overlay;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

.hero__inner { position: relative; max-width: 900px; }
.hero__title { margin-bottom: 20px; }
.hero__title em {
  font-style: normal;
  background: linear-gradient(96deg, var(--gold-100), var(--gold-300) 45%, var(--gold-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__lead { margin-bottom: 30px; max-width: 54ch; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.hero__meta {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  overflow: hidden;
}
.hero__meta div {
  background: rgba(11, 13, 17, 0.55);
  backdrop-filter: blur(6px);
  padding: 16px 18px;
}
.hero__meta dt {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--gold-200);
  line-height: 1.2;
  display: flex;
  align-items: baseline;
  gap: 2px;
  white-space: nowrap;
}
.hero__meta dt span { font-size: 12.5px; color: var(--text-3); font-weight: 400; letter-spacing: 0; }
.hero__meta dd {
  margin: 4px 0 0;
  font-size: 12.5px;
  color: var(--text-3);
  letter-spacing: 0.02em;
}

/* ---------- 9. Document rows / promise / facts / case list ----------
   取代原先的卡片网格。卡片网格让并列内容看起来像"要比较的选项"，
   而这里的业务线是并行能力、四个数字是同一份承诺，
   横排成行才读得出来。 */

/* 业务主线：像规格表一样一行一条（原三条，系统集成栏目删除后为两条）。
   用 grid-template-areas 显式命名各子元素的位置，而不是靠 grid-column
   自动放置——否则窄屏下 .line__d 会被塞进只剩 24px 的箭头列里竖排。 */
.lines { border-top: 1px solid var(--line); }
.line {
  display: grid;
  grid-template-columns: minmax(140px, 190px) 1fr 24px;
  grid-template-areas: "title desc go";
  gap: 6px 32px;
  align-items: baseline;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  color: inherit;
  transition: background-color 0.3s, padding-left 0.3s;
}
.line:hover {
  padding-left: 12px;
  background: linear-gradient(90deg, rgba(201, 156, 67, 0.055), transparent 58%);
}
.line__t {
  grid-area: title;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  color: var(--text-1);
}
.line__d { grid-area: desc; font-size: 14.5px; line-height: 1.72; color: var(--text-2); }
.line__go {
  grid-area: go;
  justify-self: end;
  align-self: center;
  color: var(--text-4);
  transition: color 0.3s, transform 0.3s;
}
.line__go svg { display: block; width: 20px; height: 20px; }
.line:hover .line__go { color: var(--gold); transform: translateX(3px); }

/* 我们的优势：2×2 细线分栏。原站是四张图标卡，
   这里保留四条原文但换成表格化的分栏，标题与描述同权。 */
.strengths {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
}
.strength {
  padding: 28px 40px 30px 0;
  border-bottom: 1px solid var(--line);
}
.strength:nth-child(odd) { border-right: 1px solid var(--line); }
.strength:nth-child(even) { padding-left: 40px; padding-right: 0; }
.strength h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  color: var(--text-1);
  margin: 0 0 8px;
}
.strength p { margin: 0; font-size: 14px; line-height: 1.72; color: var(--text-2); }

/* 服务承诺：数字本身是标题，所以这一节没有 h2 */
.section--promise { padding-top: 0; }
.promise {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.promise__item {
  display: flex;
  flex-direction: column;
  padding: 44px 32px 40px 0;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.promise__item:last-child { border-right: 0; padding-right: 0; }
.promise__n {
  font-family: var(--font-mono);
  font-size: clamp(50px, 5.8vw, 80px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text-1);
}
.promise__u {
  margin-top: 8px;
  font-size: 17px;
  font-weight: 500;
  color: var(--text-2);
}
.promise__d { margin-top: 4px; font-size: 13.5px; color: var(--text-3); }
/* 全页唯一的金色数字——首屏标题点名的"到场时间" */
.promise__item--key .promise__n { color: var(--gold-200); }
.promise__item--key .promise__u { color: var(--gold-300); }

.promise__tail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
  margin-top: 28px;
}
.promise__tail p { max-width: 60ch; margin: 0; font-size: 14px; color: var(--text-2); }

/* 公司档案：窄栏表格，不用卡片 */
.facts { margin: 0; border-top: 1px solid var(--line); }
.facts__row {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
}
.facts__row dt { font-size: 12.5px; color: var(--text-3); }
.facts__row dd { margin: 0; font-size: 14px; font-weight: 500; color: var(--text-1); }

/* 软件定制开发术语表：8 项排成 4 列矩阵。单栏时键值只占容器左侧约
   三分之一，右侧大片留白，横线却仍拉到全宽——8 条「缩写 → 全称」
   这样密集的短内容配 1180px 宽容器必然失衡。四列后每列约 270px，
   内容占满、横线与栏宽一致，区块高度也从八行压到两行。 */
.facts--split {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  column-gap: 32px;
  border-top: 0;
}
.facts--split .facts__row { grid-template-columns: 60px 1fr; gap: 12px; padding: 13px 0; }
/* 四列布局下不做顶部起始线：表格与上方标题靠留白分隔，
   比一条横贯全幅的线安静。 */

@media (max-width: 1100px) { .facts--split { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 820px) { .facts--split { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .facts--split { grid-template-columns: 1fr; column-gap: 0; } }

/* 案例与新闻：纯清单。原站没有分类标签，本轮不编造。 */
.case-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.case-list a {
  display: block;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  color: inherit;
  transition: padding-left 0.3s;
}
.case-list a:hover { padding-left: 12px; }
.case-list__t { font-size: 17px; font-weight: 500; color: var(--text-1); transition: color 0.3s; }
.case-list a:hover .case-list__t { color: var(--gold-200); }

/* Bento 仍在 service.html 使用 */
.bento {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  grid-auto-rows: minmax(0, auto);
  gap: 18px;
}
.bento > :nth-child(3) { grid-column: 1 / -1; }

/* ---------- 10. Feature list ---------- */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
  gap: 16px;
}
.feat {
  display: flex;
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  background: rgba(255, 255, 255, 0.018);
  transition: border-color 0.26s, background-color 0.26s, transform 0.26s;
}
.feat:hover { border-color: rgba(201, 156, 67, 0.28); background: rgba(201, 156, 67, 0.035); transform: translateY(-2px); }
.feat h4 { margin-bottom: 5px; }
.feat p { font-size: 13.5px; color: var(--text-3); line-height: 1.62; }

/* ---------- 11. SLA table ---------- */
.sla {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-850);
}
.sla caption { text-align: left; padding: 0 0 16px; }
.sla thead th {
  text-align: left;
  padding: 15px 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-300);
  background: rgba(201, 156, 67, 0.07);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.sla td { padding: 18px 20px; border-top: 1px solid var(--line-soft); vertical-align: top; font-size: 14px; line-height: 1.66; color: var(--text-2); }
.sla tbody tr:first-child td { border-top: 0; }
.sla tbody tr { transition: background-color 0.2s; }
.sla tbody tr:hover { background: rgba(255, 255, 255, 0.022); }
.sla .col-lv { width: 132px; }
.sla .col-time { width: 30%; }
.time-main {
  display: block;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--gold-200);
  letter-spacing: 0.01em;
  margin-bottom: 5px;
}

/* ---------- 12. Flow stepper ----------
   Here the 01–08 numerals are earned: the fault-handling procedure is a real
   ordered sequence, so the numbers carry order information the reader needs. */
.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px 18px;
  counter-reset: step;
}
.step {
  position: relative;
  padding: 20px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  background: linear-gradient(170deg, var(--ink-800), transparent);
  transition: border-color 0.26s, transform 0.26s;
}
.step:hover { border-color: rgba(201, 156, 67, 0.3); transform: translateY(-2px); }
.step__n {
  display: inline-grid;
  place-items: center;
  width: 30px; height: 30px;
  border-radius: 9px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 400;
  color: var(--gold-200);
  background: rgba(201, 156, 67, 0.11);
  border: 1px solid rgba(201, 156, 67, 0.26);
  margin-bottom: 12px;
}
.step h4 { margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--text-3); line-height: 1.6; }
/* spine connecting consecutive steps within a row */
.step::after {
  content: "";
  position: absolute;
  top: 35px;
  left: calc(100% + 3px);
  width: 12px;
  height: 1px;
  background: linear-gradient(90deg, rgba(201, 156, 67, 0.5), rgba(201, 156, 67, 0.1));
}
.step:nth-child(4)::after, .step:last-child::after { display: none; }
/* the wrap point: mark where row 1 hands off to row 2 */
.step:nth-child(4)::before {
  content: "";
  position: absolute;
  right: -11px;
  top: 35px;
  width: 7px; height: 7px;
  border-right: 1px solid rgba(201, 156, 67, 0.5);
  border-bottom: 1px solid rgba(201, 156, 67, 0.5);
  transform: rotate(-45deg);
}

/* ---------- 12c. SIGNATURE: 故障响应标尺 ----------
   The subject of this company is a written standard. So the hero's proof is a
   calibrated time scale, not adjectives: it shows at a glance that the response
   window is 30 minutes, while travel time is what actually separates the three
   fault levels. Two different measures drawn on one honest linear axis. */
.ruler {
  margin: 46px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    linear-gradient(180deg, rgba(148, 166, 180, 0.035), transparent 42%),
    var(--ink-850);
  padding: 24px 26px 20px;
}
.ruler__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}
.ruler__t { font-size: 15.8px; font-weight: 600; color: var(--text-1); }
.ruler__s {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-3);
}

.ruler__row {
  display: grid;
  grid-template-columns: 76px 1fr 96px;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
}
.ruler__row + .ruler__row { border-top: 1px solid var(--line-soft); }
.ruler__label { font-size: 13.5px; color: var(--text-2); white-space: nowrap; }

/* track: 0 → 24h, hairline ticks every 3h */
.ruler__track {
  position: relative;
  height: 24px;
  border-radius: 3px;
  background:
    repeating-linear-gradient(90deg, var(--steel-line) 0 1px, transparent 1px 12.5%),
    rgba(255, 255, 255, 0.022);
}
/* the ≤30min response window, shaded at the origin of the scale */
.ruler__resp {
  position: absolute;
  inset: 0 auto 0 0;
  width: 2.1%;
  background: linear-gradient(90deg, rgba(201, 156, 67, 0.5), rgba(201, 156, 67, 0.14));
  border-right: 1px solid var(--gold-300);
}
.ruler__bar {
  position: absolute;
  top: 50%;
  height: 9px;
  margin-top: -4.5px;
  left: calc(var(--from) * 1%);
  width: calc((var(--to) - var(--from)) * 1%);
  min-width: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--gold-500), var(--gold-200));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.85s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.ruler__bar--range {
  background: repeating-linear-gradient(115deg, var(--gold-500) 0 6px, #8a6624 6px 12px);
}
/* an upper-bound promise reads as a ceiling, so it is drawn as a faint span
   capped by a solid tick at the limit rather than as a solid commitment */
.ruler__bar--cap {
  background: linear-gradient(90deg, rgba(201, 156, 67, 0.16), rgba(201, 156, 67, 0.34));
  border-right: 2px solid var(--gold-200);
}
.ruler__key--cap i { background: linear-gradient(90deg, rgba(201,156,67,.2), rgba(201,156,67,.4)); border-right: 2px solid var(--gold-200); }
.is-in .ruler__bar { transform: scaleX(1); }

.ruler__val {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--gold-200);
  text-align: right;
  white-space: nowrap;
}

.ruler__axis {
  position: relative;
  height: 28px;
  margin-top: 2px;
  margin-left: 92px;
  margin-right: 112px;
  border-top: 1px solid var(--line);
}
.ruler__tick {
  position: absolute;
  top: 0;
  left: calc(var(--at) * 1%);
  transform: translateX(-50%);
  padding-top: 7px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--text-4);
  white-space: nowrap;
}
.ruler__tick::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  width: 1px; height: 4px;
  background: var(--steel-line);
}
.ruler__tick--0 { transform: none; padding-left: 0; }
.ruler__tick--0::before { left: 0; }
.ruler__tick--100 { transform: translateX(-100%); padding-right: 0; }
.ruler__tick--100::before { left: 100%; }

.ruler__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  margin-top: 2px;
  padding-top: 15px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  color: var(--text-3);
}
.ruler__key { display: inline-flex; align-items: center; gap: 8px; }
.ruler__key i { width: 16px; height: 9px; border-radius: 2px; flex: none; }
.ruler__key--resp i { background: linear-gradient(90deg, rgba(201,156,67,.5), rgba(201,156,67,.14)); border-right: 1px solid var(--gold-300); }
.ruler__key--bar i { background: linear-gradient(90deg, var(--gold-500), var(--gold-200)); }
.ruler__key--range i { background: repeating-linear-gradient(115deg, var(--gold-500) 0 4px, #8a6624 4px 8px); }

@media (max-width: 720px) {
  .ruler { padding: 18px 14px 14px; }
  .ruler__row { grid-template-columns: 60px 1fr; gap: 8px 10px; }
  .ruler__val { grid-column: 2; text-align: left; margin-top: -2px; }
  .ruler__axis { margin-left: 70px; margin-right: 0; }
}

/* ---------- 12d. Category tag ----------
   The three business lines are parallel capabilities, not a sequence, so they
   take a category tag instead of an ordinal that would imply ordering. */

/* ---------- 12e. Severity meter ----------
   Fault levels are a genuinely ordered severity scale, so fill count encodes
   rank (1 = most urgent). Data, not decoration. */
.sev { display: inline-flex; align-items: flex-end; gap: 2px; height: 12px; }
.sev i { display: block; width: 3px; background: var(--line-strong); border-radius: 1px; }
.sev i:nth-child(1) { height: 5px; }
.sev i:nth-child(2) { height: 8px; }
.sev i:nth-child(3) { height: 12px; }
.sev i.on { background: var(--gold-300); }
.sev--1 i:nth-child(1) { height: 12px; }
.sev--1 i:nth-child(2) { height: 8px; }
.sev--1 i:nth-child(3) { height: 5px; }
.lv { display: inline-flex; align-items: center; gap: 9px; font-weight: 600; color: var(--text-1); white-space: nowrap; }
.lv__t { font-family: var(--font-sans); font-size: 14px; font-weight: 600; }

/* ---------- 13. Bench bars ---------- */
.bench { display: grid; gap: 16px; }
.bench__row { display: grid; gap: 8px; }
.bench-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
}
.bench-head b { font-weight: 500; color: var(--text-1); }
.bench-head span { font-family: var(--font-mono); font-size: 13px; color: var(--gold-200); }
.bench-track {
  height: 7px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.055);
  overflow: hidden;
}
.bench-fill {
  height: 100%;
  width: 0;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--gold-500), var(--gold-300));
  transition: width 1.1s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.is-in .bench-fill { width: var(--w); }

/* ---------- 14. KV grid ---------- */
.kv {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0 40px;
  margin: 0;
}
.kv > div {
  display: flex;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px dashed var(--line);
}
.kv dt {
  flex: none;
  width: 88px;
  color: var(--text-3);
  font-size: 13.5px;
}
.kv dd { margin: 0; font-size: 14px; color: var(--text-1); line-height: 1.6; }

/* ---------- 15. Case grid + filter ---------- */
.filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}
.filter__btn {
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 13.5px;
  color: var(--text-3);
  border: 1px solid var(--line-soft);
  background: transparent;
  transition: color 0.22s, border-color 0.22s, background-color 0.22s;
}
.filter__btn:hover { color: var(--text-1); border-color: var(--line-strong); }
.filter__btn[aria-pressed="true"] {
  color: var(--gold-200);
  border-color: rgba(201, 156, 67, 0.4);
  background: rgba(201, 156, 67, 0.09);
}

.cases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(288px, 1fr));
  gap: 18px;
}
.case {
  display: flex;
  flex-direction: column;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--ink-850);
  transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.3, 1), border-color 0.3s, box-shadow 0.3s;
}
.case:hover { transform: translateY(-4px); border-color: rgba(201, 156, 67, 0.3); box-shadow: var(--sh-2); }
.case.is-hidden { display: none; }

/* 案例卡不再留 16:10 的图片位。
   原先那块占位盒在没有实拍照片时就是一个巨大的空网格，只在正中飘个编号，
   窄屏下还会撑成一屏高——看起来像图没加载出来，而不是设计。
   现在改成规格表式的排头：编号与标题同一行左对齐，编号走钢灰等宽，
   和站内 .line / .facts 的文档语汇一致。有实拍照片再把 .case__head
   换成 <img class="case__art">（比例 16/10）即可，正文样式不受影响。 */
.case__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}
.case__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--steel);
}
.case__body { display: flex; flex-direction: column; gap: 10px; flex: 1; }
.case__body h3 { font-size: 16.5px; line-height: 1.42; }

.case-sec + .case-sec { margin-top: 48px; }
.case-sec.is-empty { display: none; }
.case-sec__head {
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.case-sec__head .h3 { margin-bottom: 8px; }
.case-sec__head .small { max-width: 76ch; }
.case__meta {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* ---------- 16. Architecture / hub diagram ---------- */

/* ---------- 17. Quote / statement ---------- */
.statement {
  position: relative;
  padding: 54px 0;
  border-block: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(201, 156, 67, 0.045), transparent);
  text-align: center;
}
.statement blockquote {
  margin: 0 auto;
  max-width: 24ch;
  font-size: clamp(24px, 3.6vw, 40px);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--text-1);
}
.statement p { margin-top: 16px; color: var(--text-3); font-size: 14px; }

/* ---------- 18. News list ---------- */

@media (max-width: 720px) {

}

/* ---------- 19. CTA band ---------- */
.cta {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(201, 156, 67, 0.24);
  border-radius: var(--r-xl);
  padding: 54px 48px;
  background:
    radial-gradient(700px 300px at 14% 0%, rgba(201, 156, 67, 0.16), transparent 66%),
    radial-gradient(520px 320px at 92% 110%, rgba(125, 91, 28, 0.2), transparent 66%),
    linear-gradient(160deg, var(--ink-750), var(--ink-900));
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 40px;
}
.cta h2 { font-size: clamp(23px, 2.8vw, 32px); margin-bottom: 12px; }
.cta p { color: var(--text-2); max-width: 52ch; }
.cta__actions { display: grid; gap: 10px; justify-items: stretch; min-width: 236px; }
.cta__tel {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.26);
}
.cta__tel svg { width: 19px; height: 19px; color: var(--gold-300); flex: none; }
.cta__tel div { line-height: 1.3; }
.cta__tel small { display: block; font-size: 11.5px; color: var(--text-3); letter-spacing: 0.08em; }
.cta__tel b {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-1);
}
@media (max-width: 900px) {
  .cta { grid-template-columns: 1fr; padding: 38px 26px; gap: 28px; }
  .cta__actions { min-width: 0; }
}

/* ---------- 20. Page hero (subpages) ---------- */
.phero {
  position: relative;
  padding: calc(var(--hdr) + 66px) 0 58px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.phero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(680px 300px at 10% 0%, rgba(201, 156, 67, 0.13), transparent 64%),
    radial-gradient(560px 300px at 90% 30%, rgba(125, 91, 28, 0.12), transparent 66%);
  pointer-events: none;
}
.phero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(66% 100% at 40% 0%, #000, transparent 76%);
  mask-image: radial-gradient(66% 100% at 40% 0%, #000, transparent 76%);
  pointer-events: none;
}
.phero > * { position: relative; }
.phero__inner { max-width: 760px; }
.phero h1 { font-size: clamp(25px, 3.2vw, 38px); margin-bottom: 14px; letter-spacing: -0.02em; line-height: 1.3; }
.phero .lead { font-size: 15.5px; max-width: 66ch; }

.crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--text-4);
  margin-bottom: 20px;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.crumbs a { transition: color 0.2s; }
.crumbs a:hover { color: var(--gold-300); }
.crumbs svg { width: 12px; height: 12px; opacity: 0.6; }

/* ---------- 21. Page content helpers ---------- */
.prose { max-width: 74ch; }
.prose h2 { font-size: 24px; margin: 48px 0 16px; letter-spacing: -0.02em; }
.prose h3 { font-size: 17px; margin: 32px 0 10px; }
.prose p { color: var(--text-2); line-height: 1.78; }
.prose ul { display: grid; gap: 10px; margin: 16px 0 8px; }
.prose li {
  position: relative;
  padding-left: 20px;
  color: var(--text-2);
  line-height: 1.7;
  font-size: 14.5px;
}
.prose li::before {
  content: "";
  position: absolute;
  left: 2px; top: 11px;
  width: 5px; height: 5px;
  border-radius: 1.5px;
  background: var(--gold);
  transform: rotate(45deg);
}
.prose strong { color: var(--text-1); font-weight: 600; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: start;
}
.split--wide-left { grid-template-columns: 1.15fr 1fr; }

@media (max-width: 900px) {
  .split, .split--wide-left { grid-template-columns: 1fr; gap: 32px; }

}

.stack { display: grid; gap: 16px; }

.row-flex { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

/* numbered list with rail */
.rail-list { display: grid; gap: 0; counter-reset: rl; }
.rail-list li {
  position: relative;
  padding: 0 0 26px 40px;
  counter-increment: rl;
}
.rail-list li::before {
  content: counter(rl, decimal-leading-zero);
  position: absolute;
  left: 0; top: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--gold-300);
  width: 26px; height: 26px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(201, 156, 67, 0.1);
  border: 1px solid rgba(201, 156, 67, 0.24);
}
.rail-list li::after {
  content: "";
  position: absolute;
  left: 13px; top: 32px; bottom: 6px;
  width: 1px;
  background: linear-gradient(var(--line-strong), transparent);
}
.rail-list li:last-child { padding-bottom: 0; }
.rail-list li:last-child::after { display: none; }
.rail-list h4 { margin-bottom: 5px; }
.rail-list p { font-size: 13.8px; color: var(--text-3); line-height: 1.66; }

/* ---------- 22. Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 22px;
  align-items: start;
}
.map-frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  min-height: 380px;
  background:
    repeating-linear-gradient(0deg, transparent 0 27px, var(--line-soft) 27px 28px),
    repeating-linear-gradient(90deg, transparent 0 27px, var(--line-soft) 27px 28px),
    linear-gradient(150deg, var(--ink-800), var(--ink-900));
  display: grid;
  place-items: center;
  padding: 26px;
}
.map-frame svg { width: 100%; max-width: 400px; }
.map-pin {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
  font-size: 14px;
  color: var(--text-2);
}
.map-pin svg { width: 17px; height: 17px; color: var(--gold-300); flex: none; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

.info-list { display: grid; gap: 0; }
.info-row {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
  align-items: flex-start;
}
.info-row:first-child { border-top: 1px solid var(--line-soft); }
.info-row svg { width: 18px; height: 18px; color: var(--gold-300); flex: none; margin-top: 3px; }
.info-row small {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: 3px;
  font-family: var(--font-mono);
}
.info-row p, .info-row b { font-size: 15px; color: var(--text-1); line-height: 1.6; font-weight: 500; }
.info-row a:hover { color: var(--gold-200); }

/* ---------- 22.1 Job descriptions ----------
   岗位职责动辄七八条、每条一长句，用卡片装不下也读不下去。
   这里改回规格表式的文档块：一条岗位一条横带，编号在左走钢灰，
   「岗位职责」「任职要求」各成一栏带小标题，中性两位数序号。
   序号刻意不用金色——金色在本站只服务一个事实（首页的 4 小时到场），
   招聘页没有那个事实，金色会让几十条序号一起变成噪声。 */
.jd { border-top: 1px solid var(--line); padding: 32px 0 36px; }
.jd:last-of-type { border-bottom: 1px solid var(--line); }
.jd:target { background: linear-gradient(90deg, rgba(201, 156, 67, .05), transparent 62%); }

.jd__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 14px;
}
.jd__no {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--steel);
}
.jd__t {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.1vw, 23px);
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-1);
}
.jd__sum {
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--text-2);
  margin: 10px 0 0;
  max-width: 78ch;
}
.jd__grp { margin-top: 26px; }
.jd__grp > h5 {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--text-4);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
}
.jd__list {
  list-style: none;
  display: grid;
  gap: 11px;
  counter-reset: jn;
}
.jd__list li {
  position: relative;
  padding-left: 30px;
  counter-increment: jn;
  font-size: 14.2px;
  line-height: 1.76;
  color: var(--text-2);
}
.jd__list li::before {
  content: counter(jn, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-4);
}
.jd__list b { color: var(--text-1); font-weight: 600; }

/* 岗位速查：锚点芯片，复用 .tag 的形，只换交互色 */
.jd-index { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 6px; }
a.tag { display: inline-block; transition: color .2s, border-color .2s, background-color .2s; }
a.tag:hover { color: var(--gold-200); border-color: rgba(201, 156, 67, .34); background: rgba(201, 156, 67, .07); }

@media (max-width: 620px) {
  .jd { padding: 26px 0 30px; }
  .jd__list li { padding-left: 26px; font-size: 13.8px; }
}

/* ---------- 23. Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--ink-950);
  padding: 62px 0 28px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line-soft);
}
.footer-brand p { font-size: 13.5px; color: var(--text-3); max-width: 34ch; margin-top: 16px; }
.footer-col h5 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: 16px;
}
.footer-col li + li { margin-top: 10px; }
.footer-col a { font-size: 13.5px; color: var(--text-2); transition: color 0.2s; }
.footer-col a:hover { color: var(--gold-200); }
.footer-addr { font-size: 13.5px; color: var(--text-2); line-height: 1.7; margin-top: 12px; }
.footer-bot {
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--text-4);
}
.footer-bot a { transition: color 0.2s; }
.footer-bot a:hover { color: var(--text-2); }
@media (max-width: 1000px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 620px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ---------- 24. Floating rail ---------- */
.rail {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 80;
  display: grid;
  gap: 9px;
}
.rail__btn {
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  border: 1px solid var(--line);
  background: rgba(15, 18, 24, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-2);
  box-shadow: var(--sh-1);
  transition: color 0.22s, border-color 0.22s, transform 0.22s, background-color 0.22s, opacity 0.3s;
}
.rail__btn svg { width: 19px; height: 19px; }
.rail__btn:hover { color: var(--gold-200); border-color: rgba(201, 156, 67, 0.4); transform: translateY(-2px); }
.rail__btn--top { opacity: 0; visibility: hidden; }
.rail__btn--top.is-on { opacity: 1; visibility: visible; }
.rail__btn--top svg { transform: rotate(-90deg); }

/* ---------- 25. Reveal on scroll ----------
   Content is visible by default. The entrance animation is only armed once JS
   has flagged .has-js, so a script failure can never leave a page blank. */
.reveal { opacity: 1; transform: none; }
.has-js .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(0.2, 0.7, 0.3, 1), transform 0.7s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.has-js .reveal.is-in { opacity: 1; transform: none; }
.has-js .reveal[data-d="1"] { transition-delay: 0.07s; }
.has-js .reveal[data-d="2"] { transition-delay: 0.14s; }
.has-js .reveal[data-d="3"] { transition-delay: 0.21s; }
.has-js .reveal[data-d="4"] { transition-delay: 0.28s; }
.has-js .reveal[data-d="5"] { transition-delay: 0.35s; }

/* ---------- 26. Responsive ---------- */
@media (max-width: 1080px) {
  :root { --gut: 24px; }
}

@media (max-width: 1180px) {
  .nav { display: none; }
  .burger { display: grid; }
  .bento { grid-template-columns: 1fr; }
  .bento > :nth-child(3) { grid-column: auto; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .step::after { display: none; }
  .hero__meta { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 92px 0; }
  .section--promise { padding-top: 0; }
  .line {
    grid-template-columns: 96px minmax(0, 1fr) 24px;
    grid-template-areas:
      "cat  title go"
      "cat  desc  go";
  }
}

@media (max-width: 860px) {
  .promise { grid-template-columns: 1fr; }
  .promise__item { border-right: 0; padding-right: 0; }
  .promise__item:not(:last-child) { border-bottom: 1px solid var(--line-soft); }
  .strengths { grid-template-columns: 1fr; }
  .strength:nth-child(odd) { border-right: 0; }
  .strength:nth-child(even) { padding-left: 0; }
}

@media (max-width: 620px) {
  :root { --gut: 20px; --hdr: 64px; }
  body { font-size: 14.5px; }
  .hero { min-height: auto; padding-top: calc(var(--hdr) + 52px); padding-bottom: 44px; }
  .hero__meta { margin-top: 40px; }
  .hero__meta dt { font-size: 22px; }
  .hero__meta div { padding: 14px 15px; }
  .flow { grid-template-columns: 1fr; }
  .statement { padding: 40px 0; }
  .cta { border-radius: var(--r-lg); }
  .sla thead th, .sla td { padding: 13px 14px; }
  .sla .col-lv { width: auto; }
  .rail { right: 12px; bottom: 14px; }
  .rail__btn { width: 42px; height: 42px; }
  /* 窄屏：标题与箭头一行，说明另起 */
  .line {
    grid-template-columns: minmax(0, 1fr) 24px;
    grid-template-areas:
      "title go"
      "desc  desc";
    gap: 4px 12px;
    padding: 24px 0;
  }
  .promise__item { padding: 32px 0; }
  .promise__tail { margin-top: 22px; }
}

/* ---------- 27. Motion / print ---------- */
@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;
  }
  .reveal { opacity: 1; transform: none; }
  .bench-fill { transition: none; }
}

@media print {
  .site-header, .rail, .drawer, .hero__canvas { display: none !important; }
  body { background: #fff; color: #000; }
}