/* ==========================================================================
   广东省中为环境科技有限公司 · 企业官网样式
   纯净工程感：深墨蓝 + 洁净青 + 大量留白
   ========================================================================== */

:root {
  --ink: #08202e;
  --ink-soft: #16394a;
  --deep: #06202c;
  --body: #52646f;
  --muted: #8494a0;
  --line: #e2e9ec;
  --line-strong: #ccd8dd;
  --paper: #ffffff;
  --mist: #f5f8f9;
  --mist-2: #edf2f4;
  --accent: #0b7a85;
  --accent-bright: #17b0bc;
  --accent-soft: #e7f4f5;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;

  --wrap: 1180px;
  --radius: 4px;
  --shadow-s: 0 1px 2px rgba(8, 32, 46, 0.05), 0 4px 14px rgba(8, 32, 46, 0.05);
  --shadow-m: 0 2px 6px rgba(8, 32, 46, 0.06), 0 14px 40px rgba(8, 32, 46, 0.1);
  --shadow-l: 0 8px 24px rgba(8, 32, 46, 0.1), 0 30px 80px rgba(8, 32, 46, 0.18);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--body);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* 长单词 / 连续字符不撑破容器 */
p,
h1,
h2,
h3,
li,
td,
summary {
  overflow-wrap: break-word;
  word-break: break-word;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

::selection {
  background: var(--accent);
  color: #fff;
}

/* ---------- 布局 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 108px 0;
  position: relative;
}

.section--mist {
  background: var(--mist);
}

.section--tight {
  padding: 84px 0;
}

.sec-head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 32px;
  margin-bottom: 56px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
  display: block;
}

.sec-title {
  font-size: clamp(26px, 3vw, 38px);
  letter-spacing: -0.02em;
  line-height: 1.28;
}

.sec-title em {
  font-style: normal;
  color: var(--accent);
}

.sec-desc {
  max-width: 520px;
  margin-top: 16px;
  font-size: 15px;
  color: var(--body);
}

.sec-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line-strong);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.sec-link svg {
  transition: transform 0.3s var(--ease);
}

.sec-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.sec-link:hover svg {
  transform: translateX(4px);
}

/* ---------- 顶部导航 ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease),
    border-color 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}

.header.is-stuck {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--line);
}

.header.on-dark:not(.is-stuck) .nav-link,
.header.on-dark:not(.is-stuck) .brand-name {
  color: rgba(255, 255, 255, 0.92);
}

.header.on-dark:not(.is-stuck) .brand-sub {
  color: rgba(255, 255, 255, 0.5);
}

.header.on-dark:not(.is-stuck) .brand-mark {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line-strong);
  display: grid;
  place-items: center;
  transition: all 0.3s var(--ease);
}

.brand-mark svg {
  width: 20px;
  height: 20px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-size: 15px;
  font-weight: 650;
  color: var(--ink);
  letter-spacing: 0.02em;
  transition: color 0.3s var(--ease);
}

.brand-sub {
  font-size: 9.5px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
  transition: color 0.3s var(--ease);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-link {
  position: relative;
  padding: 8px 12px;
  font-size: 13.5px;
  white-space: nowrap;
  flex: 0 0 auto;
  color: var(--ink-soft);
  transition: color 0.25s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.nav-link:hover {
  color: var(--accent);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
}

.nav-link.is-active {
  color: var(--accent);
  font-weight: 600;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 20px;
  background: var(--ink);
  color: #fff;
  font-size: 13.5px;
  font-weight: 500;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}

.header-cta:hover {
  background: var(--accent);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
  padding: 0;
  place-items: center;
  color: var(--ink);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.3s var(--ease);
}

.nav-toggle span::before {
  top: -5px;
}

.nav-toggle span::after {
  top: 5px;
}

.header.on-dark:not(.is-stuck) .nav-toggle {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--deep);
  color: #fff;
  padding: 152px 0 0;
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 520px at 78% 8%, rgba(23, 176, 188, 0.22), transparent 62%),
    radial-gradient(700px 500px at 12% 92%, rgba(11, 122, 133, 0.16), transparent 60%),
    linear-gradient(160deg, #082431 0%, #06202c 46%, #0a2c3a 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 60% 40%, #000 0%, transparent 82%);
  -webkit-mask-image: radial-gradient(circle at 60% 40%, #000 0%, transparent 82%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 56px;
  align-items: center;
  padding-bottom: 104px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px 7px 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 30px;
  max-width: 100%;
  flex-wrap: wrap;
  line-height: 1.7;
}

.hero-tag .dot {
  width: 6px;
  height: 6px;
  background: var(--accent-bright);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(23, 176, 188, 0.2);
}

.hero h1 {
  color: #fff;
  font-size: clamp(32px, 3.9vw, 50px);
  line-height: 1.26;
  letter-spacing: -0.025em;
  font-weight: 600;
}

.hero h1 .accent {
  color: #6fe3ea;
}

.hero-lead {
  margin-top: 28px;
  max-width: 540px;
  font-size: 16px;
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.72);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 50px;
  padding: 0 28px;
  font-size: 14.5px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.28s var(--ease);
}

.btn svg {
  transition: transform 0.3s var(--ease);
}

.btn:hover svg {
  transform: translateX(4px);
}

.btn--primary {
  background: var(--accent-bright);
  color: #04222c;
  font-weight: 600;
}

.btn--primary:hover {
  background: #35cbd6;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(23, 176, 188, 0.32);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.24);
  color: #fff;
  background: transparent;
}

.btn--ghost:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-2px);
}

.btn--dark {
  background: var(--ink);
  color: #fff;
}

.btn--dark:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(11, 122, 133, 0.26);
}

.btn--line {
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn--line:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}

/* Hero 证书叠层 */
.hero-certs {
  position: relative;
  min-height: 430px;
}

.cert-stack {
  position: relative;
  height: 430px;
}

.stack-card {
  position: absolute;
  margin: 0;
  background: #fff;
  padding: 10px;
  box-shadow: var(--shadow-l);
  transition: transform 0.6s var(--ease), box-shadow 0.6s var(--ease);
}

.stack-card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  border: 1px solid #eef2f4;
  background: #fff;
}

.stack-card.c1 {
  width: 246px;
  height: 330px;
  top: 26px;
  left: 4%;
  transform: rotate(-6deg);
  z-index: 1;
}

.stack-card.c2 {
  width: 250px;
  height: 340px;
  top: 54px;
  left: 33%;
  transform: rotate(2.5deg);
  z-index: 3;
}

.stack-card.c3 {
  width: 244px;
  height: 320px;
  top: 8px;
  left: 60%;
  transform: rotate(7deg);
  z-index: 2;
}

.hero-certs:hover .stack-card.c1 {
  transform: rotate(-9deg) translate(-10px, -6px);
}

.hero-certs:hover .stack-card.c2 {
  transform: rotate(0deg) translateY(-8px);
}

.hero-certs:hover .stack-card.c3 {
  transform: rotate(10deg) translate(10px, -4px);
}

.certs-badge {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 18px;
  background: rgba(6, 32, 44, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(8px);
  color: rgba(255, 255, 255, 0.9);
  font-size: 12px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.certs-badge svg {
  color: var(--accent-bright);
}

/* 统计条 */
.stats {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
}

.stats-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.stat {
  padding: 32px 24px 34px;
  border-left: 1px solid rgba(255, 255, 255, 0.09);
}

.stat:first-child {
  border-left: none;
  padding-left: 0;
}

.stat-num {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 34px;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.02em;
  font-feature-settings: "tnum";
  line-height: 1;
}

.stat-num small {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.04em;
}

.stat-label {
  margin-top: 10px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.04em;
}

/* ---------- 七专业 ---------- */
.grid-trades {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.trade {
  position: relative;
  padding: 34px 28px 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  transition: background 0.35s var(--ease), transform 0.35s var(--ease),
    box-shadow 0.35s var(--ease);
}

.trade::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}

.trade:hover {
  background: #fff;
  box-shadow: 0 18px 44px rgba(8, 32, 46, 0.09);
  transform: translateY(-3px);
  z-index: 2;
}

.trade:hover::after {
  transform: scaleX(1);
}

.trade-icon {
  width: 40px;
  height: 40px;
  color: var(--accent);
  margin-bottom: 22px;
}

.trade-no {
  position: absolute;
  top: 30px;
  right: 26px;
  font-size: 11px;
  font-feature-settings: "tnum";
  color: var(--muted);
  letter-spacing: 0.08em;
}

.trade h3 {
  font-size: 16.5px;
  margin-bottom: 10px;
}

.trade p {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--body);
}

.trade--wide {
  grid-column: span 2;
}

/* ---------- 场景 ---------- */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.scene {
  background: var(--paper);
  padding: 40px 34px 38px;
  position: relative;
  transition: background 0.35s var(--ease);
}

.scene:hover {
  background: var(--mist);
}

.scene-kicker {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.scene h3 {
  font-size: 19px;
  margin-bottom: 14px;
}

.scene p {
  font-size: 13.8px;
  line-height: 1.85;
}

.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 22px;
}

.tag {
  font-size: 11.5px;
  padding: 4px 10px;
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
  background: #fff;
  letter-spacing: 0.02em;
}

/* ---------- 资质卡 ---------- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.cert-card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 12px 12px 0;
  cursor: zoom-in;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    border-color 0.4s var(--ease);
  text-align: left;
  display: flex;
  flex-direction: column;
  font-family: inherit;
}

.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-m);
  border-color: var(--line-strong);
}

.cert-thumb {
  position: relative;
  aspect-ratio: 3 / 4;
  background: #fff;
  overflow: hidden;
  border: 1px solid #eef2f4;
}

.cert-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: transform 0.7s var(--ease);
}

.cert-card:hover .cert-thumb img {
  transform: scale(1.03);
}

.cert-zoom {
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
  opacity: 0;
  transform: translateY(6px);
  transition: all 0.3s var(--ease);
}

.cert-card:hover .cert-zoom {
  opacity: 1;
  transform: translateY(0);
}

.cert-meta {
  padding: 16px 6px 18px;
}

.cert-meta h3 {
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 6px;
}

.cert-meta span {
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.02em;
  font-feature-settings: "tnum";
}

/* ---------- 流程 ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border-top: 1px solid var(--line-strong);
  margin-top: 8px;
}

.step {
  padding: 32px 22px 8px 0;
  position: relative;
}

.step::before {
  content: "";
  position: absolute;
  top: -4.5px;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--paper);
  border: 1.5px solid var(--accent);
  border-radius: 50%;
}

.step-no {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 12px;
  font-feature-settings: "tnum";
}

.step h3 {
  font-size: 15px;
  margin-bottom: 8px;
}

.step p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--body);
}

/* ---------- 数据/信息表 ---------- */
.info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.info-table th,
.info-table td {
  text-align: left;
  padding: 15px 18px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.info-table th {
  width: 148px;
  font-weight: 500;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}

.info-table td {
  color: var(--ink);
  font-weight: 450;
}

.info-table tr:last-child th,
.info-table tr:last-child td {
  border-bottom: none;
}

/* ---------- CTA 区 ---------- */
.cta-band {
  position: relative;
  background: linear-gradient(135deg, #07222f 0%, #0b3444 100%);
  color: #fff;
  padding: 76px 0;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 80% 50%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 80% 50%, #000, transparent 70%);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  position: relative;
}

.cta-band h2 {
  color: #fff;
  font-size: clamp(22px, 2.6vw, 30px);
  letter-spacing: -0.015em;
}

.cta-band p {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 14.5px;
  max-width: 560px;
}

.cta-actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

/* ---------- 页脚 ---------- */
.footer {
  background: #05202b;
  color: rgba(255, 255, 255, 0.62);
  padding: 68px 0 0;
  font-size: 13.5px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1.15fr;
  gap: 48px;
  padding-bottom: 52px;
}

.footer .brand-name {
  color: #fff;
  font-size: 16px;
}

.footer .brand-sub {
  color: rgba(255, 255, 255, 0.42);
}

.footer-desc {
  margin-top: 20px;
  line-height: 1.9;
  font-size: 13px;
  max-width: 300px;
  color: rgba(255, 255, 255, 0.5);
}

.footer h3 {
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
  font-weight: 600;
}

.footer-list li {
  margin-bottom: 12px;
}

.footer-list a {
  transition: color 0.25s var(--ease);
}

.footer-list a:hover {
  color: var(--accent-bright);
}

.footer-contact li {
  margin-bottom: 14px;
  line-height: 1.75;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-contact b {
  display: block;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  font-size: 13px;
  margin-bottom: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0 26px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.38);
  flex-wrap: wrap;
}

.footer-bottom a:hover {
  color: rgba(255, 255, 255, 0.7);
}

/* ---------- 内页头部 ---------- */
.page-head {
  position: relative;
  background: var(--deep);
  color: #fff;
  padding: 148px 0 84px;
  overflow: hidden;
}

.page-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(720px 420px at 82% 0%, rgba(23, 176, 188, 0.2), transparent 65%),
    linear-gradient(160deg, #082431 0%, #06202c 70%);
}

.page-head::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 70% 30%, #000, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 70% 30%, #000, transparent 78%);
}

.page-head .wrap {
  position: relative;
  z-index: 2;
}

.crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.04em;
  margin-bottom: 26px;
}

.crumb a:hover {
  color: #fff;
}

.page-head h1 {
  color: #fff;
  font-size: clamp(28px, 3.6vw, 44px);
  letter-spacing: -0.02em;
}

.page-head p {
  margin-top: 18px;
  max-width: 600px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 15px;
  line-height: 1.9;
}

/* ---------- 灯箱 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: rgba(4, 20, 28, 0.9);
  backdrop-filter: blur(6px);
}

.lightbox.is-open {
  display: flex;
  animation: fadeIn 0.3s var(--ease);
}

.lightbox img {
  max-width: min(94vw, 880px);
  max-height: 88vh;
  width: auto;
  object-fit: contain;
  background: #fff;
  padding: 10px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.5);
  animation: popIn 0.35s var(--ease);
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 28px;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  cursor: pointer;
  transition: background 0.25s var(--ease);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-cap {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  letter-spacing: 0.04em;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
}

@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
}

/* ---------- 业务范围页 ---------- */
.svc-layout {
  display: grid;
  grid-template-columns: 232px 1fr;
  gap: 72px;
  align-items: start;
}

.svc-nav {
  position: sticky;
  top: 104px;
}

.svc-nav-title {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-strong);
  margin-bottom: 6px;
}

.svc-nav a {
  display: block;
  padding: 11px 0 11px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--body);
  position: relative;
  transition: color 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.svc-nav a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 2px;
  height: 14px;
  background: var(--accent);
  transition: transform 0.25s var(--ease);
}

.svc-nav a:hover,
.svc-nav a.is-active {
  color: var(--accent);
  padding-left: 18px;
}

.svc-nav a:hover::before,
.svc-nav a.is-active::before {
  transform: translateY(-50%) scaleY(1);
}

.svc-item {
  scroll-margin-top: 104px;
  padding-bottom: 48px;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--line);
}

.svc-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.svc-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 18px;
}

.svc-no {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
  font-feature-settings: "tnum";
}

.svc-item h2 {
  font-size: clamp(21px, 2.2vw, 26px);
}

.svc-item .lead {
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink-soft);
  max-width: 720px;
}

.svc-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 9px 36px;
  margin-top: 26px;
}

.svc-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.6px;
  line-height: 1.8;
  color: var(--body);
}

.svc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  background: var(--accent);
}

.svc-support {
  margin-top: 24px;
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  background: var(--accent-soft);
  padding: 7px 14px;
}

/* ---------- 资质详情 ---------- */
.cert-detail {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 56px;
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.cert-detail:first-of-type {
  padding-top: 0;
}

.cert-detail:last-of-type {
  border-bottom: none;
}

.cert-viewer {
  border: 1px solid var(--line);
  background: #fff;
  padding: 10px;
  cursor: zoom-in;
  position: relative;
  transition: box-shadow 0.4s var(--ease), transform 0.4s var(--ease);
}

.cert-viewer:hover {
  box-shadow: var(--shadow-m);
  transform: translateY(-3px);
}

.cert-viewer img {
  width: 100%;
  height: auto;
  border: 1px solid #eef2f4;
}

.cert-viewer .hint {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(8, 32, 46, 0.82);
  color: #fff;
  font-size: 11.5px;
  padding: 6px 11px;
  opacity: 0;
  transform: translateY(6px);
  transition: all 0.3s var(--ease);
}

.cert-viewer:hover .hint {
  opacity: 1;
  transform: none;
}

.cert-info h2 {
  font-size: clamp(20px, 2.2vw, 26px);
  margin-bottom: 10px;
}

.cert-tagline {
  font-size: 13.5px;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 26px;
}

.cert-info .info-table th {
  width: 96px;
}

.badge-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  color: #0a7a55;
  background: #e8f6f0;
  padding: 4px 10px;
  margin-bottom: 18px;
}

.badge-live::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #0a7a55;
}

/* ---------- 核验渠道 ---------- */
.verify-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.verify-item {
  background: #fff;
  padding: 26px 26px 24px;
}

.verify-item b {
  display: block;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
}

.verify-item span {
  font-size: 12.5px;
  color: var(--muted);
  word-break: break-all;
}

/* ---------- 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: 72px;
  align-items: start;
}

.contact-block {
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.contact-block:first-child {
  padding-top: 0;
}

.contact-block .label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}

.contact-block .value {
  font-size: 17px;
  color: var(--ink);
  line-height: 1.7;
  font-weight: 500;
}

.contact-block .value a:hover {
  color: var(--accent);
}

.contact-block .sub {
  margin-top: 8px;
  font-size: 13px;
  color: var(--body);
}

.map-card {
  background: var(--mist);
  border: 1px solid var(--line);
  padding: 30px;
}

.map-visual {
  height: 220px;
  background: #fff;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  background-image: linear-gradient(rgba(11, 122, 133, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 122, 133, 0.07) 1px, transparent 1px);
  background-size: 26px 26px;
}

.map-pin {
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 8px rgba(11, 122, 133, 0.12), 0 0 0 18px rgba(11, 122, 133, 0.06);
  position: relative;
  z-index: 2;
}

.map-label {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  font-size: 12px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.92);
  padding: 8px 12px;
  border: 1px solid var(--line);
}

.map-card h3 {
  font-size: 15px;
  margin: 22px 0 8px;
}

.map-card p {
  font-size: 13.4px;
  line-height: 1.85;
}

.notice {
  margin-top: 22px;
  border: 1px dashed var(--line-strong);
  background: #fcfdfd;
  padding: 16px 18px;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

.notice b {
  color: var(--ink-soft);
  font-weight: 600;
}
/* 未启用 JS 时内容保持可见，避免内容被脚本锁死 */
html.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

html.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 杂项 ---------- */
.split {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 72px;
  align-items: start;
}

.note-box {
  border-left: 2px solid var(--accent);
  padding: 4px 0 4px 20px;
  font-size: 13.5px;
  color: var(--body);
  line-height: 1.85;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dept-card {
  border: 1px solid var(--line);
  padding: 26px 24px;
  background: #fff;
}

.dept-card h3 {
  font-size: 15px;
  margin-bottom: 10px;
}

.dept-card p {
  font-size: 13px;
  line-height: 1.8;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* ---------- 能力矩阵表 ---------- */
.matrix {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 14px;
}

.matrix th {
  text-align: left;
  padding: 15px 22px;
  background: var(--mist);
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--muted);
  white-space: nowrap;
}

.matrix td {
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  line-height: 1.8;
  color: var(--body);
}

.matrix td:first-child {
  width: 20%;
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}

.matrix td:nth-child(2) {
  width: 42%;
}

.matrix td:last-child {
  width: 38%;
  color: var(--ink-soft);
  font-size: 13.5px;
}

.matrix tbody tr:last-child td {
  border-bottom: none;
}

.matrix tbody tr:hover {
  background: #fbfdfd;
}

/* 四列版（资质一览） */
.matrix--certs th:nth-child(1),
.matrix--certs td:nth-child(1) {
  width: 19%;
}

.matrix--certs th:nth-child(2),
.matrix--certs td:nth-child(2) {
  width: 20%;
}

.matrix--certs th:nth-child(3),
.matrix--certs td:nth-child(3) {
  width: 39%;
}

.matrix--certs th:nth-child(4),
.matrix--certs td:nth-child(4) {
  width: 22%;
  white-space: nowrap;
}

.matrix--certs td {
  white-space: normal;
}

/* ---------- 常见问题 ---------- */
.faq-list {
  border-top: 1px solid var(--line-strong);
  max-width: 900px;
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 21px 44px 21px 0;
  position: relative;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.6;
  transition: color 0.25s var(--ease);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--accent);
}

.faq-item summary::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 50%;
  width: 11px;
  height: 11px;
  border-right: 1.5px solid var(--accent);
  border-bottom: 1.5px solid var(--accent);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.3s var(--ease);
}

.faq-item[open] summary::after {
  transform: translateY(-30%) rotate(225deg);
}

.faq-item .faq-a {
  padding: 0 60px 24px 0;
  font-size: 14px;
  line-height: 2;
  color: var(--body);
  animation: fadeIn 0.35s var(--ease);
}

/* ==========================================================================
   新闻资讯
   ========================================================================== */

/* ---------- 列表页筛选 ---------- */
.news-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 44px;
}

.chip {
  padding: 9px 20px;
  border: 1px solid var(--line-strong);
  background: #fff;
  font-family: inherit;
  font-size: 13px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.25s var(--ease);
}

.chip:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.chip.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

/* ---------- 头条 ---------- */
.news-feature {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  border: 1px solid var(--line);
  background: #fff;
  margin-bottom: 32px;
  transition: box-shadow 0.4s var(--ease), transform 0.4s var(--ease);
}

.news-feature:hover {
  box-shadow: var(--shadow-m);
  transform: translateY(-2px);
}

.news-feature-body {
  padding: 48px 46px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-feature-visual {
  position: relative;
  background: linear-gradient(150deg, #07222f 0%, #0b3444 100%);
  overflow: hidden;
  min-height: 300px;
  display: grid;
  place-items: center;
}

.news-feature-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 60% 45%, #000, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 60% 45%, #000, transparent 78%);
}

.news-feature-visual span {
  position: relative;
  font-size: 84px;
  font-weight: 600;
  color: rgba(111, 227, 234, 0.22);
  letter-spacing: -0.04em;
  font-feature-settings: "tnum";
}

.news-feature h2 {
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.5;
  margin: 14px 0 16px;
}

.news-feature p {
  font-size: 14px;
  line-height: 1.95;
  color: var(--body);
}

/* ---------- 列表 ---------- */
.news-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.news-list--3 {
  grid-template-columns: repeat(3, 1fr);
}

/* 列表项为奇数时，最后一张横跨两列，避免右侧留空（仅两列布局） */
.news-list:not(.news-list--3) > .news-card:last-child:nth-child(odd) {
  grid-column: span 2;
}

.news-list:not(.news-list--3) > .news-card:last-child:nth-child(odd) p {
  max-width: 760px;
}

.news-list:not(.news-list--3) > .news-card:last-child:nth-child(odd)::after {
  transform: scaleY(1);
  background: var(--line-strong);
}

.news-card {
  background: #fff;
  padding: 34px 32px 30px;
  display: flex;
  flex-direction: column;
  transition: background 0.3s var(--ease);
  position: relative;
}

.news-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 100%;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s var(--ease);
}

.news-card:hover {
  background: var(--mist);
}

.news-card:hover::after {
  transform: scaleY(1);
}

.news-card h3 {
  font-size: 17px;
  line-height: 1.55;
  margin-bottom: 12px;
  transition: color 0.25s var(--ease);
}

.news-card:hover h3 {
  color: var(--accent);
}

.news-card p {
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--body);
  flex: 1;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 20px;
  font-size: 12px;
  color: var(--muted);
  font-feature-settings: "tnum";
}

.news-meta .dot-sep {
  width: 3px;
  height: 3px;
  background: var(--line-strong);
  border-radius: 50%;
  display: block;
}

.cat-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--accent);
  border: 1px solid var(--accent-soft);
  background: var(--accent-soft);
  padding: 3px 10px;
}

.cat-tag--news {
  color: #8a5a00;
  background: #fdf4e3;
  border-color: #f7e6c4;
}

/* ---------- 文章页头部 ---------- */
.page-head--article {
  padding: 138px 0 68px;
}

.post-cat {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: #6fe3ea;
  border: 1px solid rgba(23, 176, 188, 0.45);
  padding: 5px 13px;
  margin-bottom: 22px;
}

.page-head--article h1 {
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.45;
  max-width: 960px;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 26px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.02em;
}

.post-meta .sep {
  width: 3px;
  height: 3px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
}

/* ---------- 文章正文 ---------- */
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 700px) 210px;
  gap: 84px;
  justify-content: center;
  align-items: stretch;
}

.article-body {
  font-size: 15.5px;
  line-height: 2.05;
  color: var(--body);
  min-width: 0;
}

.article-body .lede {
  font-size: 16.5px;
  line-height: 2;
  color: var(--ink-soft);
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 34px;
}

.article-body h2 {
  font-size: 21px;
  margin: 52px 0 18px;
  scroll-margin-top: 104px;
  line-height: 1.5;
}

.article-body h3 {
  font-size: 16.5px;
  margin: 32px 0 12px;
  color: var(--ink-soft);
  scroll-margin-top: 104px;
}

.article-body p {
  margin: 0 0 20px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 22px;
  padding-left: 22px;
}

.article-body ul {
  list-style: none;
  padding-left: 0;
}

.article-body ul li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 10px;
}

.article-body ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 5px;
  height: 5px;
  background: var(--accent);
}

.article-body ol li {
  margin-bottom: 10px;
  padding-left: 4px;
}

.article-body ol li::marker {
  color: var(--accent);
  font-weight: 600;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 26px 0;
  font-size: 13.5px;
  line-height: 1.8;
}

.article-body th,
.article-body td {
  border: 1px solid var(--line);
  padding: 11px 14px;
  text-align: left;
  vertical-align: top;
}

.article-body th {
  background: var(--mist);
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

.article-body blockquote {
  margin: 28px 0;
  padding: 20px 26px;
  border-left: 2px solid var(--accent);
  background: var(--mist);
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--ink-soft);
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-body strong {
  color: var(--ink);
  font-weight: 600;
}

.article-body .note-line {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.9;
  margin-top: -8px;
  margin-bottom: 24px;
}

/* ---------- 目录 ---------- */
.toc {
  position: relative;
  font-size: 12.5px;
}

.toc-inner {
  position: sticky;
  top: 104px;
}

.toc-title {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-strong);
  margin-bottom: 8px;
}

.toc a {
  display: block;
  padding: 8px 0 8px 13px;
  border-left: 1px solid var(--line);
  color: var(--body);
  line-height: 1.6;
  transition: all 0.25s var(--ease);
}

.toc a:hover,
.toc a.is-active {
  color: var(--accent);
  border-left-color: var(--accent);
  padding-left: 16px;
}

/* ---------- 文章尾部 ---------- */
.article-foot {
  margin-top: 60px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.article-foot .label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 34px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.related-card {
  border: 1px solid var(--line);
  padding: 22px 22px 20px;
  background: #fff;
  transition: all 0.3s var(--ease);
}

.related-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-s);
  transform: translateY(-2px);
}

.related-card h3 {
  font-size: 14.5px;
  line-height: 1.6;
  margin-bottom: 8px;
}

.related-card span {
  font-size: 11.5px;
  color: var(--muted);
  font-feature-settings: "tnum";
}

/* ---------- 文章页 CTA ---------- */
.article-cta {
  margin-top: 40px;
  background: var(--mist);
  border: 1px solid var(--line);
  padding: 30px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}

.article-cta b {
  display: block;
  font-size: 16px;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 6px;
}

.article-cta p {
  font-size: 13.5px;
  color: var(--body);
  line-height: 1.8;
  max-width: 420px;
}

/* ---------- 时间轴 ---------- */
.timeline {
  position: relative;
  padding-left: 8px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 111.5px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--line-strong);
}

.tl-item {
  display: grid;
  grid-template-columns: 104px 1fr;
  gap: 40px;
  padding-bottom: 38px;
  position: relative;
}

.tl-item:last-child {
  padding-bottom: 0;
}

.tl-date {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--accent);
  font-feature-settings: "tnum";
  padding-top: 3px;
  letter-spacing: 0.01em;
}

.tl-body {
  position: relative;
}

.tl-body::before {
  content: "";
  position: absolute;
  left: -44.5px;
  top: 9px;
  width: 9px;
  height: 9px;
  background: #fff;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.9);
}

.tl-body h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.tl-body p {
  font-size: 13.8px;
  line-height: 1.85;
  max-width: 680px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .grid-trades {
    grid-template-columns: repeat(3, 1fr);
  }
  .cert-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .hero-inner {
    gap: 40px;
  }
  .stack-card.c1 {
    left: 0;
  }
  .stack-card.c3 {
    left: 58%;
  }
}

@media (max-width: 960px) {
  .nav,
  .header-cta {
    display: none;
  }
  .nav-toggle {
    display: grid;
  }
  .header.is-open .nav {
    display: flex;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 10px 0 18px;
    box-shadow: var(--shadow-m);
  }
  .header.is-open .nav-link {
    color: var(--ink) !important;
    padding: 13px 32px;
    font-size: 15px;
  }
  .header.is-open .nav-link::after {
    display: none;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 56px;
    padding-bottom: 72px;
  }
  .hero-certs {
    min-height: 380px;
  }
  .cert-stack {
    height: 380px;
  }
  .stats-inner {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat {
    padding: 26px 20px;
  }
  .stat:nth-child(3) {
    border-left: none;
    padding-left: 0;
  }
  .stat:nth-child(odd) {
    padding-left: 0;
  }
  .section {
    padding: 76px 0;
  }
  .scene-grid,
  .three-col {
    grid-template-columns: repeat(2, 1fr);
  }
  .process {
    grid-template-columns: repeat(2, 1fr);
    gap: 0 24px;
  }
  .split {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .svc-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .svc-nav {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0 24px;
  }
  .svc-nav-title {
    grid-column: span 2;
  }
  .cert-detail {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 40px 0;
  }
  .cert-viewer {
    max-width: 360px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .sec-head {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 20px;
  }
  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 28px;
  }
  .wrap {
    padding: 0 24px;
  }
}

@media (max-width: 720px) {
  body {
    font-size: 15px;
  }
  .grid-trades {
    grid-template-columns: repeat(2, 1fr);
  }
  .trade--wide {
    grid-column: span 2;
  }
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .scene-grid,
  .three-col,
  .two-col {
    grid-template-columns: 1fr;
  }
  .stack-card.c1,
  .stack-card.c3 {
    display: none;
  }
  .stack-card.c2 {
    left: 50%;
    transform: translateX(-50%) rotate(-2deg);
    width: 240px;
    height: 330px;
  }
  .hero-certs,
  .cert-stack {
    min-height: 380px;
    height: 380px;
  }
  .hero {
    padding-top: 124px;
  }
  .page-head {
    padding: 122px 0 60px;
  }
  .section {
    padding: 62px 0;
  }
  .process {
    grid-template-columns: 1fr;
    border-top: none;
  }
  .step {
    border-left: 1px solid var(--line);
    padding: 0 0 26px 24px;
  }
  .step::before {
    top: 6px;
    left: -4.5px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
  .lightbox {
    padding: 16px;
  }
  .info-table th {
    width: 108px;
    padding: 12px 10px;
  }
  .info-table td {
    padding: 12px 10px;
    font-size: 13.5px;
  }
  .timeline::before {
    left: 3px;
  }
  .tl-item {
    grid-template-columns: 1fr;
    gap: 6px;
    padding-left: 26px;
    padding-bottom: 30px;
  }
  .tl-date {
    padding-top: 0;
  }
  .tl-body::before {
    left: -28px;
    top: 6px;
  }
  .matrix th,
  .matrix td {
    padding: 14px 16px;
  }
  .matrix td:first-child,
  .matrix td:nth-child(2),
  .matrix td:last-child {
    width: auto;
  }
  .matrix {
    font-size: 13px;
    min-width: 620px;
  }
  .svc-list {
    grid-template-columns: 1fr;
  }
  .svc-nav {
    grid-template-columns: 1fr;
  }
  .svc-nav-title {
    grid-column: span 1;
  }
  .verify-grid {
    grid-template-columns: 1fr;
  }
  .cert-viewer {
    max-width: 100%;
  }
  .btn {
    height: 46px;
    padding: 0 22px;
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 新闻 / 文章 响应式 ---------- */
@media (max-width: 1080px) {
  .article-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }
  .toc {
    display: none;
  }
  .news-list--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 960px) {
  .news-feature {
    grid-template-columns: 1fr;
  }
  .news-feature-visual {
    min-height: 170px;
    order: -1;
  }
  .news-feature-visual span {
    font-size: 56px;
  }
  .news-feature-body {
    padding: 30px 26px;
  }
  .news-list {
    grid-template-columns: 1fr;
  }
  .news-list > .news-card:last-child:nth-child(odd),
  .news-list:not(.news-list--3) > .news-card:last-child:nth-child(odd) {
    grid-column: auto;
  }
}

@media (max-width: 720px) {
  .page-head--article {
    padding: 116px 0 50px;
  }
  .article-body {
    font-size: 15px;
    line-height: 1.95;
  }
  .article-body h2 {
    font-size: 19px;
    margin-top: 40px;
  }
  .article-body .lede {
    font-size: 15.5px;
  }
  .article-body table {
    font-size: 12.5px;
  }
  .article-body th,
  .article-body td {
    padding: 9px 10px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .news-card {
    padding: 26px 22px 24px;
  }
  .article-cta {
    padding: 24px 20px;
  }
  .article-foot {
    margin-top: 44px;
  }
}

/* ==========================================================================
   品牌标识与实景图（2026-10-27 依《中为公司简介》《参考网址》补充）
   ========================================================================== */

/* 真实 logo：白底承载品牌紫，避免深色页头上失真 */
.brand-mark {
  background: #fff;
  border-color: rgba(255, 255, 255, 0.85);
  overflow: hidden;
}

.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
  padding: 4px;
  object-fit: contain;
}

.header.on-dark:not(.is-stuck) .brand-mark {
  background: #fff;
  border-color: rgba(255, 255, 255, 0.85);
}

.footer .brand-mark {
  background: #fff;
  border-color: transparent;
}

/* 实景照片 */
.figure-photo {
  margin: 0;
}

.figure-photo img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
}

.figure-photo figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
  letter-spacing: 0.01em;
}

/* 团队岗位标签组（纯文字，不带数字指标） */
.role-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.role-row .tag {
  font-size: 12.5px;
}

/* 经营理念条目 */
.creed-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-top: 26px;
  background: var(--line);
  border: 1px solid var(--line);
}

.creed-item {
  padding: 22px 24px;
  background: var(--paper);
}

.creed-item b {
  display: block;
  font-size: 15px;
  font-weight: 650;
  color: var(--ink);
  margin-bottom: 6px;
}

.creed-item span {
  font-size: 14px;
  line-height: 1.8;
  color: var(--body);
}

@media (max-width: 900px) {
  .creed-list {
    grid-template-columns: 1fr;
  }
}

/* 两列版式内的理念条目改为单列，避免窄栏挤压 */
.split .creed-list {
  grid-template-columns: 1fr;
}

/* 窄栏卡片内的清单改为单列，避免断行过碎 */
.dept-card .svc-list {
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 18px;
}

/* 六段流程：三列两行，每段自带顶线，圆点落在线上 */
@media (min-width: 901px) {
  .process--6 {
    grid-template-columns: repeat(3, 1fr);
    border-top: 0;
  }

  .process--6 .step {
    border-top: 1px solid var(--line-strong);
    padding: 28px 24px 30px 0;
  }
}

/* ==========================================================================
   板块详情页（2026-10-27 依宣传册结构与实景照片新增）
   ========================================================================== */

/* 顶抬头：全幅实景 + 板块名 */
.band {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 560px;
  background: var(--deep);
  overflow: hidden;
}

.band-img {
  position: absolute;
  inset: 0;
}

.band-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.band-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 32, 44, 0.78) 0%, rgba(6, 32, 44, 0.5) 38%, rgba(6, 32, 44, 0.92) 100%);
}

.band-inner {
  position: relative;
  z-index: 2;
  padding: 130px 0 60px;
  color: #fff;
  width: 100%;
}

.band .crumb {
  color: rgba(255, 255, 255, 0.62);
}

.band .crumb a {
  color: rgba(255, 255, 255, 0.85);
}

.hex-badge {
  width: 132px;
  height: 148px;
  margin-bottom: 20px;
  display: grid;
  place-items: center;
  text-align: center;
  font-size: 13.5px;
  line-height: 1.5;
  letter-spacing: 0.08em;
  color: #fff;
  background: rgba(23, 176, 188, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.42);
  -webkit-clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
}

.band h1 {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.25;
  margin: 0 0 16px;
  color: #fff;
  letter-spacing: -0.01em;
}

.band-lead {
  max-width: 760px;
  font-size: 15.5px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.8);
  margin: 0 0 22px;
}

.band-meta {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.58);
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  max-width: 760px;
}

/* 侧边目录 + 正文 */
.sub-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 60px;
  align-items: start;
}

.sub-nav {
  position: sticky;
  top: 100px;
  border-left: 1px solid var(--line);
  padding-left: 20px;
}

.sub-nav-title {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}

.sub-nav a {
  display: block;
  font-size: 13.5px;
  line-height: 1.6;
  padding: 7px 0;
  color: var(--ink-soft);
  transition: color 0.2s var(--ease);
}

.sub-nav a:hover {
  color: var(--accent);
}

.sub-nav-cta {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--accent) !important;
  font-weight: 600;
}

.sub-wrap > .sub-block + .sub-block {
  margin-top: 76px;
  padding-top: 64px;
  border-top: 1px solid var(--line);
}

.sub-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 22px;
}

.sub-no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
  border: 1px solid var(--line-strong);
  padding: 5px 9px;
  margin-top: 6px;
  font-feature-settings: "tnum";
}

.sub-head h2 {
  font-size: 26px;
  margin: 0;
  line-height: 1.35;
  color: var(--ink);
}

.sub-en {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-top: 6px;
  text-transform: uppercase;
}

.sub-lead {
  font-size: 15.5px;
  line-height: 2;
  color: var(--ink-soft);
  margin: 0 0 6px;
}

.sub-list {
  margin-top: 22px;
}

/* 实景照片网格 */
.shot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 30px;
}

.shot {
  margin: 0;
  cursor: zoom-in;
  background: var(--mist-2);
}

.shot img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: opacity 0.3s var(--ease);
}

.shot:hover img {
  opacity: 0.9;
}

.shot figcaption {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  padding: 9px 2px 0;
}

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

@media (max-width: 1100px) {
  .sub-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .sub-nav {
    position: static;
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 4px 18px;
  }

  .sub-nav-title,
  .sub-nav-cta {
    width: 100%;
    border-top: 0;
    margin: 0;
    padding: 0;
  }
}

@media (max-width: 760px) {
  .band {
    min-height: 460px;
  }

  .band-inner {
    padding: 100px 0 44px;
  }

  .hex-badge {
    width: 104px;
    height: 118px;
    font-size: 12px;
  }

  .shot-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .sub-head h2 {
    font-size: 21px;
  }
}

@media (max-width: 480px) {
  .shot-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   首页抬头：四大板块实景轮播（2026-10-29 依《参考网址》批注“4大板块图片轮播”新增）
   ========================================================================== */

.hero--slides {
  background: var(--deep);
}

.hero-slides {
  position: absolute;
  inset: 0;
  z-index: -2;
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.2s var(--ease);
}

.hero-slide.is-on {
  opacity: 1;
}

.hero-slides::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(6, 32, 44, 0.9) 0%, rgba(6, 32, 44, 0.78) 34%, rgba(6, 32, 44, 0.42) 66%, rgba(6, 32, 44, 0.2) 100%),
    linear-gradient(0deg, rgba(6, 32, 44, 0.62), transparent 42%);
}

.hero-note {
  margin-top: 26px;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.55);
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-note::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent-bright);
  flex-shrink: 0;
}

.hero-dots {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 46px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.hero-dot {
  appearance: none;
  background: transparent;
  border: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 18px 22px 0;
  text-align: left;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.3s var(--ease), background 0.3s var(--ease);
  position: relative;
}

.hero-dot:last-child {
  border-right: 0;
}

.hero-dot b {
  display: block;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}

.hero-dot span {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.01em;
  line-height: 1.6;
  opacity: 0.8;
}

.hero-dot::after {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 0;
  height: 2px;
  background: var(--accent-bright);
  transition: width 0.4s var(--ease);
}

.hero-dot:hover {
  color: rgba(255, 255, 255, 0.85);
}

.hero-dot.is-on {
  color: #fff;
}

.hero-dot.is-on::after {
  width: 100%;
}

@media (max-width: 760px) {
  .hero-dots {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 34px;
  }

  .hero-dot {
    padding: 14px 14px 16px 0;
  }

  .hero-dot b {
    font-size: 13px;
  }

  .hero-dot span {
    font-size: 11px;
  }
}

/* ==========================================================================
   四大板块：六边形版式（依宣传册“专注经营范围”页）
   ========================================================================== */

.honeycomb {
  margin-top: 10px;
}

.honeycomb-row {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.honeycomb-row--2 {
  margin-top: -46px;
}

.hex {
  --hex-w: 300px;
  --hex-h: 340px;
  position: relative;
  width: var(--hex-w);
  height: var(--hex-h);
  display: grid;
  place-items: center;
  text-align: center;
  text-decoration: none;
  color: var(--ink);
  background: var(--mist);
  border: 0;
  -webkit-clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  transition: background 0.35s var(--ease), transform 0.35s var(--ease);
}

a.hex:hover {
  background: var(--accent-soft);
  transform: translateY(-4px);
}

.hex-in {
  width: 74%;
  display: flex;
  flex-direction: column;
  gap: 9px;
  align-items: center;
}

.hex b {
  font-size: 15.5px;
  font-weight: 650;
  line-height: 1.45;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.hex span {
  font-size: 12px;
  line-height: 1.75;
  color: var(--body);
}

.hex i {
  font-style: normal;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-top: 4px;
}

.hex--cap {
  background: var(--deep);
}

.hex--cap b,
.hex--cap span {
  color: rgba(255, 255, 255, 0.78);
}

.hex--cap .hex-big {
  font-size: 22px;
  font-weight: 650;
  color: #fff;
  letter-spacing: 0.01em;
  font-feature-settings: "tnum";
}

@media (max-width: 1030px) {
  .hex {
    --hex-w: 250px;
    --hex-h: 284px;
  }

  .hex b {
    font-size: 14px;
  }

  .hex span {
    font-size: 11.5px;
  }

  .hex--cap .hex-big {
    font-size: 18px;
  }
}

@media (max-width: 860px) {
  .honeycomb-row {
    flex-wrap: wrap;
    gap: 10px;
  }

  .honeycomb-row--2 {
    margin-top: 10px;
  }

  .hex {
    --hex-w: 300px;
    --hex-h: 250px;
    -webkit-clip-path: none;
    clip-path: none;
    border: 1px solid var(--line);
  }
}

/* 板块卡内的详情入口 */
.trade-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.trade-link:hover {
  color: var(--accent-bright);
}

/* 招聘页：岗位卡 */
.job-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.job-card {
  padding: 30px 30px 32px;
  background: var(--paper);
}

.job-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.job-head h3 {
  font-size: 17px;
  margin: 0;
  color: var(--ink);
}

.job-tag {
  flex-shrink: 0;
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 9px;
}

.job-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
}

@media (max-width: 760px) {
  .job-list {
    grid-template-columns: 1fr;
  }

  .job-card {
    padding: 24px 22px 26px;
  }
}

/* ==========================================================================
   视觉对齐参考站（克孟特）：圆润卡片、柔和阴影、双语标语、实景网格
   ========================================================================== */

.hero-en {
  margin-top: 18px;
  font-size: 12px;
  letter-spacing: 0.24em;
  color: rgba(255, 255, 255, 0.42);
  text-transform: uppercase;
}

/* 按钮与卡片圆角 */
.btn {
  border-radius: 6px;
}

.note-box {
  border-radius: 8px;
}

.tag {
  border-radius: 999px;
}

.dept-card {
  border-radius: 8px;
  transition: box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
}

.dept-card:hover {
  box-shadow: var(--shadow-m);
  transform: translateY(-2px);
}

.shot img {
  border-radius: 6px;
}

/* 实景网格（首页） */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.gallery-grid .shot img {
  aspect-ratio: 4 / 3;
}

@media (max-width: 1000px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 520px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}

/* 资质页：证书卡片网格（参考克孟特证书页做法） */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.cert-card {
  margin: 0;
  padding: 26px 22px 22px;
  background: linear-gradient(180deg, #f8fafb 0%, #eef2f4 100%);
  border: 1px solid var(--line);
  border-radius: 10px;
  text-align: center;
  cursor: zoom-in;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.cert-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-m);
}

.cert-card-img {
  display: grid;
  place-items: center;
  height: 216px;
  margin-bottom: 18px;
}

.cert-card-img img {
  max-width: 100%;
  max-height: 216px;
  width: auto;
  height: auto;
  box-shadow: 0 6px 18px rgba(8, 32, 46, 0.12);
  background: #fff;
}

.cert-card figcaption b {
  display: block;
  font-size: 14.5px;
  font-weight: 650;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 6px;
}

.cert-meta {
  display: block;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  font-feature-settings: "tnum";
}

.cert-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 900px) {
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .cert-card-img {
    height: 170px;
  }

  .cert-card-img img {
    max-height: 170px;
  }
}

@media (max-width: 520px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }
}

/* 导航下拉：业务范围 → 四大板块 */
/* 让导航与各项撑满页头高度，下拉紧贴页头下沿，避免滚动后（is-stuck）盖住导航条本身 */
.nav {
  align-self: stretch;
}

.nav-item {
  position: relative;
  align-self: stretch;
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}

.nav-sub {
  position: absolute;
  top: calc(100% - 1px);
  left: 8px;
  min-width: 196px;
  padding: 8px 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow-m);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
  z-index: 95;
}

.nav-item:hover .nav-sub,
.nav-item:focus-within .nav-sub {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-sub a {
  display: block;
  padding: 9px 18px;
  font-size: 13.5px;
  color: var(--ink-soft);
  white-space: nowrap;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.nav-sub a:hover {
  background: var(--mist);
  color: var(--accent);
}

.nav-sub a::after {
  display: none;
}

@media (max-width: 900px) {
  .nav-sub {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    border: 0;
    box-shadow: none;
    background: transparent;
    padding: 0 0 6px 14px;
    min-width: 0;
  }

  .nav-sub a {
    padding: 7px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.68);
  }

  .nav-sub a:hover {
    background: transparent;
    color: #fff;
  }
}

/* 愿景 / 使命 / 价值观 / 精神 */
.vision-band {
  background: var(--deep);
  color: #fff;
  padding: 76px 0;
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 34px;
}

.vision-item {
  border-left: 1px solid rgba(255, 255, 255, 0.16);
  padding-left: 22px;
}

.vision-label {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--accent-bright);
  margin-bottom: 14px;
}

.vision-item p {
  margin: 0;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.01em;
}

@media (max-width: 900px) {
  .vision-band {
    padding: 56px 0;
  }

  .vision-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }

  .vision-item p {
    font-size: 15px;
  }
}

@media (max-width: 520px) {
  .vision-grid {
    grid-template-columns: 1fr;
  }
}

/* 首页抬头副标题行（h1 第一行写四大板块） */
.hero-h1-top {
  display: block;
  font-size: 0.62em;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 10px;
  line-height: 1.5;
}

/* 六边形板块图精简：尺寸收小、去掉链接行后留白收紧 */
.hex {
  --hex-w: 258px;
  --hex-h: 292px;
}

.hex-in {
  gap: 7px;
}

.hex b {
  font-size: 14.5px;
}

.hex span {
  font-size: 11.5px;
  line-height: 1.7;
}

.honeycomb-row--2 {
  margin-top: -40px;
}

.hex--cap .hex-big {
  font-size: 21px;
}

@media (max-width: 1030px) {
  .hex {
    --hex-w: 216px;
    --hex-h: 246px;
  }
}

/* 业绩页：数字条与明细表 */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  background: var(--paper);
}

.stat-cell {
  padding: 28px 24px;
  border-right: 1px solid var(--line);
}

.stat-cell:last-child {
  border-right: 0;
}

.stat-cell b {
  display: block;
  font-size: 30px;
  font-weight: 650;
  color: var(--ink);
  line-height: 1.2;
  font-feature-settings: "tnum";
  letter-spacing: -0.01em;
}

.stat-cell b small {
  font-size: 15px;
  font-weight: 500;
  margin-left: 2px;
}

.stat-cell span {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.6;
}

.matrix--projects th {
  white-space: nowrap;
}

.matrix--projects td {
  font-feature-settings: "tnum";
}

.matrix--projects td:nth-child(1) {
  color: var(--muted);
  width: 56px;
}

@media (max-width: 760px) {
  .stat-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-cell {
    border-bottom: 1px solid var(--line);
  }

  .stat-cell:nth-child(2n) {
    border-right: 0;
  }

  .stat-cell b {
    font-size: 24px;
  }
}

/* 业绩明细表：列宽按内容分配，避免被通用 matrix 规则挤压 */
.matrix--projects {
  table-layout: auto;
}

.matrix--projects th,
.matrix--projects td {
  white-space: nowrap;
  padding: 14px 18px;
}

.matrix--projects td:first-child {
  width: 1%;
  font-weight: 400;
  color: var(--muted);
}

.matrix--projects td:nth-child(2) {
  width: 1%;
  font-weight: 600;
  color: var(--ink);
}

.matrix--projects td:nth-child(3) {
  width: auto;
  white-space: normal;
  min-width: 140px;
}

.matrix--projects td:nth-child(5),
.matrix--projects td:nth-child(6),
.matrix--projects td:nth-child(7) {
  font-size: 13px;
  color: var(--ink-soft);
}

@media (max-width: 760px) {
  .matrix--projects th,
  .matrix--projects td {
    padding: 12px 12px;
    font-size: 12.5px;
  }
}

/* 问答页（/qa/）：一页一问，六字段结构 */
.qa-block {
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.qa-block:first-child {
  padding-top: 0;
}

.qa-label {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 12px;
}

.qa-conclusion {
  font-size: 17px;
  line-height: 1.95;
  color: var(--ink);
  margin: 0;
}

.qa-block p {
  margin: 0;
  font-size: 15px;
  line-height: 1.95;
}

.qa-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  justify-content: space-between;
  align-items: center;
  margin-top: 26px;
  font-size: 12.5px;
  color: var(--muted);
}

.qa-meta a {
  color: var(--accent);
  font-weight: 600;
}

@media (max-width: 760px) {
  .qa-conclusion {
    font-size: 15.5px;
  }

  .qa-block {
    padding: 20px 0;
  }
}

/* ==========================================================================
   板块详情页：左侧目录 ↔ 右侧内容 联动（2026-10-29 依批注「点 01 只显示 01」）
   说明：默认所有小节全部显示（无 JS、爬虫抓取时内容完整可读）；
   仅在 JS 生效后由 html.has-subtabs 接管为单节显示，GEO 不受影响。
   ========================================================================== */

/* 目录项：加深高亮 */
.sub-nav a {
  position: relative;
  transition: color 0.22s var(--ease), background 0.22s var(--ease);
}

.sub-nav a::before {
  content: "";
  position: absolute;
  left: -21px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.26s var(--ease);
}

.sub-nav a:hover::before {
  transform: scaleY(0.45);
}

.sub-nav a.is-active {
  color: var(--ink);
  font-weight: 650;
  background: linear-gradient(90deg, var(--accent-soft) 0%, transparent 92%);
}

.sub-nav a.is-active::before {
  transform: scaleY(1);
  background: var(--accent);
}

.sub-nav a.is-active::after {
  content: "";
}

/* 单节显示 */
.has-subtabs .sub-wrap > .sub-block {
  display: none;
}

.has-subtabs .sub-wrap > .sub-block + .sub-block {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.has-subtabs .sub-wrap > .sub-block.is-active {
  display: block;
  animation: subFade 0.4s var(--ease) both;
}

@keyframes subFade {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .has-subtabs .sub-wrap > .sub-block.is-active {
    animation: none;
  }
}

/* 上一项 / 下一项 */
.sub-pager {
  display: flex;
  gap: 1px;
  margin-top: 54px;
  background: var(--line);
  border: 1px solid var(--line);
}

.sub-pager a {
  display: block;
  flex: 1 1 0;
  min-width: 0;
  padding: 20px 24px;
  background: var(--paper);
  transition: background 0.24s var(--ease);
}

.sub-pager a:hover {
  background: var(--mist);
}

.sub-pager .pg-label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 7px;
}

.sub-pager .pg-title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
}

.sub-pager a.next {
  text-align: right;
}

.sub-pager a[hidden] {
  display: none;
}

/* 移动端：目录横排时高亮改下划线 */
@media (max-width: 1100px) {
  .sub-nav a::before {
    display: none;
  }

  .sub-nav a.is-active {
    background: transparent;
    box-shadow: inset 0 -2px 0 var(--accent);
  }
}

@media (max-width: 760px) {
  .sub-pager a.next {
    text-align: left;
  }
}

/* 页脚 GEO 声明：内容可引用 + 最近更新 + 适用范围 */
.footer-geo {
  margin: 0 0 20px;
  padding: 16px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.42);
  max-width: 820px;
}

/* 板块页事实摘要条（GEO：进页即可抽取的确定性事实） */
.fact-strip {
  border-bottom: 1px solid var(--line);
  background: var(--mist);
}

.fact-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.3fr 1fr;
  margin: 0;
}

.fact-grid > div {
  padding: 24px 26px 24px 0;
  border-right: 1px solid var(--line);
}

.fact-grid > div:last-child {
  border-right: 0;
}

.fact-grid > div + div {
  padding-left: 26px;
}

.fact-grid dt {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin-bottom: 9px;
}

.fact-grid dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-soft);
  font-feature-settings: "tnum";
}

@media (max-width: 900px) {
  .fact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .fact-grid > div {
    padding: 20px 18px 20px 0;
    border-bottom: 1px solid var(--line);
  }

  .fact-grid > div:nth-child(2n) {
    border-right: 0;
  }

  .fact-grid > div + div {
    padding-left: 18px;
  }

  .fact-grid > div:nth-child(2n + 1) {
    padding-left: 0;
  }
}

/* 常见问答总页：分类标签与分类标题 */
.qa-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.qa-chips a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  font-size: 13.5px;
  color: var(--ink-soft);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease), background 0.22s var(--ease);
}

.qa-chips a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.qa-chips a span {
  font-size: 11.5px;
  color: var(--muted);
  font-feature-settings: "tnum";
}

.qa-cat {
  scroll-margin-top: 96px;
}

.qa-cat-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 16px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.qa-cat-no {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--accent);
  border: 1px solid var(--line-strong);
  padding: 4px 8px;
}

.qa-cat-title {
  font-size: 21px;
  margin: 0;
  color: var(--ink);
}

.faq-more {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

@media (max-width: 760px) {
  .qa-cat-title {
    font-size: 18px;
  }

  .qa-chips a {
    font-size: 12.5px;
    padding: 8px 13px;
  }
}

/* 段头右侧多个链接并排 */
.sec-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  align-items: center;
}

@media (max-width: 760px) {
  .sec-links {
    gap: 6px 18px;
  }
}

/* ==========================================================================
   四大板块 + 配套类工程（2026-10-30 替代原六边形版式）
   结构：4 个并列板块卡 + 1 条通栏配套卡，视觉上直接区分主项与附属项
   ========================================================================== */

.segments {
  margin-top: 8px;
}

.seg-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.seg {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px 26px 26px;
  background: var(--paper);
  text-decoration: none;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}

.seg:hover {
  background: var(--mist);
  transform: translateY(-3px);
}

.seg-no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
  font-feature-settings: "tnum";
  margin-bottom: 22px;
}

.seg h3 {
  font-size: 17px;
  font-weight: 650;
  line-height: 1.45;
  color: var(--ink);
  margin: 0 0 12px;
  letter-spacing: 0.01em;
}

.seg p {
  font-size: 13px;
  line-height: 1.85;
  color: var(--body);
  margin: 0;
  flex: 1;
}

.seg-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.seg:hover .seg-more {
  color: var(--accent-bright);
}

/* 配套类系统工程：浅色通栏卡（2026-10-30 改版，原深色通栏取消）
   结构：左侧标题与说明 + 右侧七项胶囊 + 展开按钮 */
.seg-support {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "intro intro"
    "chips btn";
  align-items: center;
  gap: 20px 32px;
  margin-top: 18px;
  padding: 28px 30px 24px;
  background: var(--mist);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.seg-support:hover {
  background: var(--mist-2);
}

.seg-support.is-open {
  background: var(--paper);
  border-left-color: var(--accent-bright);
}

.seg-support-intro {
  grid-area: intro;
}

.seg-support-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.seg-support .seg-no {
  margin: 0;
  font-size: 15px;
  color: var(--accent);
  font-weight: 600;
}

.seg-support h3 {
  font-size: 18px;
  font-weight: 650;
  color: var(--ink);
  margin: 0;
  letter-spacing: 0.01em;
}

.seg-support-intro p {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.95;
  color: var(--body);
  max-width: 44em;
}

.seg-support-list {
  grid-area: chips;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.seg-support-list li {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ink-soft);
  padding: 5px 12px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  white-space: nowrap;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.seg-support:hover .seg-support-list li {
  border-color: var(--accent-soft);
  color: var(--accent);
}

.seg-support-btn {
  grid-area: btn;
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.25s var(--ease);
}

.seg-support-btn:hover {
  background: var(--accent-bright);
}

.seg-support-btn svg {
  transition: transform 0.3s var(--ease);
}

.seg-support-btn[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

/* 配套七项：展开后的明细卡 */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 8px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.spec-card {
  display: flex;
  flex-direction: column;
  padding: 26px 22px 24px;
  background: var(--paper);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.spec-card h3 {
  font-size: 15.5px;
  font-weight: 650;
  line-height: 1.5;
  color: var(--ink);
  margin: 0 0 10px;
}

.spec-card > p {
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--body);
  margin: 0 0 14px;
}

.spec-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.spec-card li {
  position: relative;
  padding-left: 13px;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--body);
}

.spec-card li + li {
  margin-top: 6px;
}

/* 七项在四列网格里最后一项跨两列，补齐整行 */
.spec-card:last-child {
  grid-column: span 2;
}

.spec-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.55;
}

@media (max-width: 1080px) {
  .seg-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .seg-support {
    grid-template-columns: 1fr;
    grid-template-areas:
      "intro"
      "chips"
      "btn";
    gap: 18px;
    padding: 24px 22px;
  }

  .seg-support-list {
    justify-content: flex-start;
  }

  .seg-support-list {
    justify-content: flex-start;
  }

  .seg-support-btn {
    justify-self: start;
  }

  .spec-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .seg-grid {
    grid-template-columns: 1fr;
  }

  .spec-grid {
    grid-template-columns: 1fr;
  }

  .spec-card:last-child {
    grid-column: auto;
  }

  .seg {
    padding: 26px 22px 22px;
  }

  .seg-no {
    margin-bottom: 14px;
  }
}

/* ==========================================================================
   项目案例页（2026-10-30）
   ========================================================================== */

.case-count {
  margin-left: auto;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-feature-settings: "tnum";
  white-space: nowrap;
}

.case-desc {
  margin: 4px 0 22px;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--body);
  max-width: 860px;
}

.case-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.matrix--projects td.cat {
  white-space: nowrap;
  font-size: 12.5px;
  color: var(--accent);
}

.matrix--projects tbody tr:hover {
  background: var(--mist);
}

/* 外景网格：5 张一行，不足时左对齐 */
.gallery-grid--5 {
  grid-template-columns: repeat(5, 1fr);
}

@media (max-width: 1080px) {
  .gallery-grid--5 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 700px) {
  .gallery-grid--5 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 460px) {
  .gallery-grid--5 {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   项目案例：左侧类别目录 + 右侧卡片网格（2026-10-30 改版）
   取消「建设规模（合同额）」与「工程质量」两列，只留建设单位 / 项目名称 / 开竣工
   ========================================================================== */

.case-layout {
  display: grid;
  grid-template-columns: 208px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

.case-side {
  position: sticky;
  top: 104px;
}

.case-side-title {
  margin-bottom: 6px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.case-menu {
  display: flex;
  flex-direction: column;
}

.case-menu a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-left: -1px;
  padding: 11px 0 11px 14px;
  border-left: 2px solid var(--line);
  font-size: 13.5px;
  color: var(--body);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease),
    background 0.22s var(--ease);
}

.case-menu a span {
  font-size: 11.5px;
  color: var(--muted);
  font-feature-settings: "tnum";
}

.case-menu a:hover {
  color: var(--ink);
  border-left-color: var(--line-strong);
}

.case-menu a.is-on {
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 650;
}

.case-menu a.is-on span {
  color: var(--accent);
}

.case-side-note {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 11.5px;
  line-height: 1.9;
  color: var(--muted);
}

.case-main {
  min-width: 0;
}

.case-sec {
  scroll-margin-top: 104px;
}

.case-sec + .case-sec {
  margin-top: 48px;
}

.case-sec-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-strong);
}

.case-sec-head h2 {
  font-size: 20px;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.case-sec-count {
  font-size: 12px;
  color: var(--muted);
  font-feature-settings: "tnum";
}

.case-sec-desc {
  margin: 12px 0 20px;
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--body);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.case-card {
  display: flex;
  flex-direction: column;
  padding: 20px 18px 16px;
  background: var(--paper);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 0.22s var(--ease);
}

.case-card:hover {
  background: var(--mist);
}

.case-card h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 650;
  line-height: 1.55;
  color: var(--ink);
}

.case-card .case-name {
  margin: 7px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--body);
}

.case-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 14px;
  font-size: 11.5px;
  color: var(--muted);
  font-feature-settings: "tnum";
}

.case-foot.is-solo {
  justify-content: flex-end;
}

.case-sub {
  padding: 2px 8px;
  border-radius: 2px;
  background: var(--accent-soft);
  font-size: 11px;
  line-height: 1.6;
  color: var(--accent);
  white-space: nowrap;
}

.case-foot .case-date {
  margin-left: auto;
  white-space: nowrap;
}

@media (max-width: 1080px) {
  .case-layout {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .case-side {
    position: static;
  }

  .case-side-title {
    display: none;
  }

  .case-menu {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px;
  }

  .case-menu a {
    margin: 0;
    padding: 7px 13px;
    border: 1px solid var(--line);
    border-radius: 999px;
  }

  .case-menu a.is-on {
    border-color: var(--accent);
    background: var(--accent-soft);
  }

  .case-side-note {
    display: none;
  }

  .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .case-grid {
    grid-template-columns: 1fr;
  }
}

/* 项目案例：切换式显示（与业务范围页一致，一次只显示一类） */
.has-cases .case-sec {
  display: none;
}

.has-cases .case-sec.is-active {
  display: block;
}

.has-cases .case-sec + .case-sec {
  margin-top: 0;
}

/* 数字条右上角加号 */
.stat-cell .plus {
  margin-left: 2px;
  font-style: normal;
  font-size: 0.62em;
  font-weight: 600;
  color: var(--accent-bright);
  vertical-align: super;
  line-height: 0;
}

/* 计数后的加号：表示不止这些 */
.plus {
  margin-left: 2px;
  font-style: normal;
  font-size: 0.66em;
  font-weight: 600;
  color: var(--accent-bright);
  vertical-align: super;
  line-height: 0;
}

.case-menu a .plus,
.case-sec-count .plus,
.qa-chips a .plus {
  font-size: 0.78em;
}

/* 业务范围页：七大专业区块（卡片样式沿用 .seg，与上方板块卡统一） */
.trade-block {
  margin-top: 64px;
}

.trade-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 20px;
}

.trade-head h3 {
  font-size: 20px;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.trade-head p {
  margin: 8px 0 0;
  max-width: 54em;
  font-size: 13px;
  line-height: 1.9;
  color: var(--body);
}

/* 七张卡在四列网格里，末张跨两列补齐整行 */
.seg-grid--7 > .seg:last-child {
  grid-column: span 2;
}

.seg-grid--7 .seg h3 small {
  display: block;
  margin-top: 3px;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--muted);
}

@media (max-width: 720px) {
  .trade-block {
    margin-top: 44px;
  }

  .trade-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
}

@media (max-width: 560px) {
  .seg-grid--7 > .seg:last-child {
    grid-column: auto;
  }
}