:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #eef1f5;
  --ink: #0f1a2b;
  --ink-2: #3b4759;
  --muted: #6c7787;
  --line: #e0e5ec;
  --line-2: #eaeef3;
  --band: #0d1727;
  --band-2: #16233a;
  --brand: #17457f;
  --brand-2: #1f5fb0;
  --gold: #b8933c;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(15, 26, 43, 0.04), 0 10px 30px -22px rgba(15, 26, 43, 0.5);
}

* {
  box-sizing: border-box;
}

/* 有些元素我们自己设了 display，会盖掉 hidden 属性，这里统一兜住 */
[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", system-ui,
    -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

h1,
h2,
h3 {
  margin: 0;
  font-weight: 600;
  line-height: 1.28;
}

p {
  margin: 0;
}

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

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 12px;
  top: 12px;
  z-index: 200;
  background: #fff;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------- 顶栏 ---------------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(1.5) blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.2s;
}

.topbar.is-scrolled {
  box-shadow: 0 6px 24px -18px rgba(15, 26, 43, 0.7);
}

.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex: none;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--band);
  color: var(--gold);
  display: grid;
  place-items: center;
  flex: none;
}

.brand-mark svg {
  width: 22px;
  height: 22px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-text strong {
  font-size: 16px;
  font-weight: 600;
}

.brand-text small {
  font-size: 11.5px;
  color: var(--muted);
}

.nav {
  display: flex;
  gap: 26px;
  margin-left: auto;
  font-size: 15px;
  color: var(--ink-2);
}

.nav a {
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.nav a:hover {
  color: var(--brand);
  border-bottom-color: var(--brand);
}

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

.topbar-tel {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.3;
}

.tel-label {
  font-size: 11px;
  color: var(--muted);
}

.tel-num {
  font-size: 15px;
  font-weight: 600;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
}

.menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  place-items: center;
}

.menu-btn svg {
  width: 20px;
  height: 20px;
}

/* ---------------- 首屏 ---------------- */

.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  background: var(--band);
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 46%;
  filter: saturate(1.04) brightness(1.04) contrast(1.02);
}

.hero-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(
      100deg,
      rgba(9, 17, 30, 0.88) 0%,
      rgba(9, 17, 30, 0.66) 30%,
      rgba(9, 17, 30, 0.22) 58%,
      rgba(9, 17, 30, 0.3) 100%
    ),
    linear-gradient(180deg, rgba(9, 17, 30, 0.3) 0%, rgba(9, 17, 30, 0) 32%, rgba(9, 17, 30, 0.78) 100%);
}

/* 再叠一层只压文字背后区域的柔和暗角，保证正文可读，又不把整张图压暗 */
.hero-veil::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    120% 78% at 20% 60%,
    rgba(9, 17, 30, 0.62) 0%,
    rgba(9, 17, 30, 0.34) 42%,
    rgba(9, 17, 30, 0) 72%
  );
}

.hero-inner {
  position: relative;
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 92px 24px 36px;
  color: #fff;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: #e6d3a8;
  margin-bottom: 18px;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--gold);
}

.hero h1 {
  font-size: 50px;
  font-weight: 600;
  max-width: 20ch;
}

.hero h1 span {
  display: block;
  font-size: 30px;
  font-weight: 500;
  color: #dbe4f0;
  margin-top: 8px;
}

.hero-sub {
  margin-top: 20px;
  max-width: 52ch;
  font-size: 16.5px;
  color: #c8d3e2;
}

.hero-cta {
  display: flex;
  gap: 12px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 26px;
  border-radius: var(--radius-sm);
  font-size: 15.5px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.16s, border-color 0.16s, color 0.16s;
}

.btn-primary {
  background: var(--brand-2);
  color: #fff;
}

.btn-primary:hover {
  background: #18509a;
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.42);
  color: #fff;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}

.btn-outline {
  border-color: var(--line);
  background: #fff;
  color: var(--brand);
}

.btn-outline:hover {
  border-color: var(--brand);
  background: rgba(23, 69, 127, 0.05);
}

.btn-outline svg {
  width: 17px;
  height: 17px;
  margin-left: 6px;
}

.more-row {
  margin-top: 34px;
  display: flex;
  justify-content: center;
}

/* 上传资料引导带 */
.cta-band {
  background: var(--band-2);
  color: #fff;
  padding: 42px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}

.cta-text h2 {
  font-size: 24px;
}

.cta-text p {
  margin-top: 8px;
  color: #c3cfe0;
  font-size: 15.5px;
  max-width: 62ch;
}

.cta-inner .btn-primary {
  flex: none;
}

@media (max-width: 780px) {
  .cta-band {
    padding: 32px 0;
  }
  .cta-text h2 {
    font-size: 20px;
  }
  .cta-inner .btn-primary {
    width: 100%;
  }
}

.hero-facts {
  position: relative;
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px 34px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  color: #fff;
}

.hero-facts li {
  padding: 16px 20px 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.fact-key {
  font-size: 11.5px;
  color: #e0c78f;
}

.fact-val {
  font-size: 14.5px;
  color: #e8eef6;
}

/* ---------------- 通用版块 ---------------- */

.band {
  padding: 92px 0;
}

/* 吸顶导航会盖住锚点目标，留出偏移 */
#values,
#services,
#cases,
#clients,
#about,
#contact {
  scroll-margin-top: 78px;
}

.band-alt {
  background: var(--surface-2);
}

.band-dark {
  background: var(--band);
  color: #e8eef6;
}

.sec-head {
  max-width: 760px;
  margin-bottom: 46px;
}

.sec-head-row {
  max-width: none;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}

.sec-head-row > div:first-child {
  max-width: 640px;
}

.sec-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--gold);
  margin-bottom: 14px;
}

.sec-eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--gold);
}

.sec-head h2,
.about-text h2 {
  font-size: 34px;
}

.sec-lead {
  margin-top: 14px;
  font-size: 16.5px;
  color: var(--ink-2);
}

.band-dark .sec-lead,
.band-dark .client-col h3,
.band-dark .flow h3 {
  color: #c3cfe0;
}

.band-dark .sec-head h2 {
  color: #fff;
}

/* ---------------- 公司价值 ---------------- */

.motto {
  margin: 0 0 42px;
  padding: 6px 0 6px 26px;
  border-left: 4px solid var(--gold);
  max-width: 780px;
}

.motto p {
  font-size: 29px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

.motto cite {
  display: block;
  margin-top: 10px;
  font-style: normal;
  font-size: 14.5px;
  color: var(--muted);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.value {
  padding-top: 24px;
  border-top: 2px solid var(--ink);
}

.value-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: rgba(23, 69, 127, 0.08);
  color: var(--brand);
  margin-bottom: 16px;
}

.value-icon svg {
  width: 23px;
  height: 23px;
}

.value h3 {
  font-size: 19px;
  margin-bottom: 8px;
}

.value p {
  font-size: 15px;
  color: var(--ink-2);
}

/* ---------------- 业务范围 ---------------- */

.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.svc {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow);
  transition: transform 0.18s, border-color 0.18s;
}

.svc:hover {
  transform: translateY(-3px);
  border-color: #c7d3e2;
}

.svc-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--band);
  color: var(--gold);
  margin-bottom: 16px;
}

.svc-icon svg {
  width: 21px;
  height: 21px;
}

.svc h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.svc p {
  font-size: 14.5px;
  color: var(--ink-2);
}

.svc-note {
  margin-top: 22px;
  padding: 14px 18px;
  border-left: 3px solid var(--gold);
  background: rgba(184, 147, 60, 0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14.5px;
  color: var(--ink-2);
}

.client-col .tick-list b {
  color: #fff;
  font-weight: 600;
}

/* ---------------- 业绩案例 ---------------- */

.filters {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  background: var(--surface-2);
  padding: 4px 4px 4px 12px;
  border-radius: var(--radius-sm);
}

.filter-label {
  font-size: 12.5px;
  color: var(--muted);
  margin-right: 4px;
  flex: none;
}

.filter {
  border: 0;
  background: transparent;
  padding: 8px 14px;
  border-radius: 4px;
  font-size: 14px;
  color: var(--ink-2);
  cursor: pointer;
  font-family: inherit;
}

.filter:hover {
  color: var(--brand);
}

.filter.is-active {
  background: #fff;
  color: var(--brand);
  font-weight: 500;
  box-shadow: 0 1px 3px rgba(15, 26, 43, 0.12);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.case {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.18s, border-color 0.18s;
}

.case:hover {
  transform: translateY(-3px);
  border-color: #c7d3e2;
}

.case.is-hidden {
  display: none;
}

.case-media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--surface-2);
}

.case-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.case:hover .case-media img {
  transform: scale(1.04);
}

.case-body {
  padding: 20px 22px 24px;
}

.case-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--brand);
  background: rgba(23, 69, 127, 0.08);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.case-body h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.case-body p {
  font-size: 14.5px;
  color: var(--ink-2);
}

/* ---------------- 客户关系 ---------------- */

.client-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.client-col h3,
.flow h3 {
  font-size: 18px;
  color: #fff;
  margin-bottom: 18px;
}

.tick-list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 12px;
  font-size: 15px;
  color: #c3cfe0;
}

.tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(-45deg);
}

.flow {
  padding-top: 40px;
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
}

.flow-list li {
  padding: 18px 16px 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 14.5px;
  color: #dbe4f0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.flow-list span {
  font-size: 13px;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

/* ---------------- 关于我们 ---------------- */

.about-wrap {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 52px;
  align-items: center;
}

.about-text p {
  margin-top: 16px;
  color: var(--ink-2);
  font-size: 16px;
}

.about-points {
  margin-top: 24px;
}

.about-points li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 15px;
  color: var(--ink);
}

.about-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 10px;
  height: 2px;
  background: var(--gold);
}

.about-media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.about-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ---------------- 联系我们 ---------------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-list li {
  display: flex;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 16px;
}

.contact-key {
  flex: none;
  width: 88px;
  color: var(--muted);
  font-size: 14.5px;
}

.contact-val a {
  color: var(--brand);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* 微信同号提示：用微信绿点一下，语义明确又不抢主色 */
.contact-tag {
  display: inline-block;
  margin-left: 10px;
  padding: 1px 9px;
  border-radius: 999px;
  font-size: 12.5px;
  line-height: 1.7;
  color: #10794a;
  background: #e6f6ed;
  border: 1px solid #c5e8d6;
  vertical-align: 2px;
  white-space: nowrap;
}

.footer-note {
  color: #8a99ae;
  margin-left: 2px;
}

.contact-note {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow);
}

.contact-note h3 {
  font-size: 17px;
  margin-bottom: 16px;
}

.contact-note .tick-list li {
  color: var(--ink-2);
}

.contact-tip {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  color: var(--muted);
}

/* 二维码区 */
.qr-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 34px;
}

.qr-item {
  display: flex;
  gap: 18px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow);
}

.qr-item > img,
.qr-placeholder {
  width: 132px;
  height: 132px;
  flex: none;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: #fff;
}

/* 微信名片码是竖版长图，给更高的展示区，保证码本身够大能扫 */
.qr-item.wx > img,
.qr-item.wx > .qr-placeholder {
  width: 180px;
  height: 236px;
}

.qr-item.wx > img {
  cursor: zoom-in;
}

.qr-item > img {
  object-fit: contain;
  padding: 6px;
}

.qr-placeholder {
  display: grid;
  place-items: center;
  background: var(--surface-2);
  border-style: dashed;
  color: #b6c0cd;
}

.qr-placeholder svg {
  width: 34px;
  height: 34px;
}

.qr-text {
  min-width: 0;
}

.qr-text strong {
  display: block;
  font-size: 16px;
  margin-bottom: 6px;
}

.qr-text p {
  font-size: 13.5px;
  color: var(--ink-2);
  margin-bottom: 4px;
}

.qr-text a {
  color: var(--brand);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.qr-url {
  color: var(--muted) !important;
  font-size: 12.5px !important;
  font-variant-numeric: tabular-nums;
}

.qr-hint {
  color: var(--muted) !important;
  font-size: 12.5px !important;
}

@media (max-width: 1000px) {
  .qr-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .qr-item {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* 上传页侧栏里的迷你二维码 */
.qr-mini {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.qr-mini .qr-item {
  padding: 12px 14px;
  gap: 12px;
  box-shadow: none;
  background: var(--surface-2);
}

.qr-mini .qr-item > img,
.qr-mini .qr-placeholder {
  width: 84px;
  height: 84px;
}

.qr-mini .qr-placeholder svg {
  width: 24px;
  height: 24px;
}

.qr-mini .qr-text strong {
  font-size: 14px;
}

.qr-mini .qr-text p {
  font-size: 12.5px;
}

/* ---------------- 页脚 ---------------- */

.footer {
  background: var(--band);
  color: #97a6ba;
  padding: 40px 0;
}

.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 40px;
  align-items: center;
}

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

.footer-brand p {
  font-size: 13.5px;
  margin-top: 6px;
}

.footer-contact {
  color: #b6c3d4;
  font-variant-numeric: tabular-nums;
}

.footer-contact a {
  color: #e8eef6;
}

.footer-contact a:hover {
  color: var(--gold);
}

.footer-contact .dot {
  margin: 0 8px;
  color: #5d6c82;
}

@media (max-width: 780px) {
  .footer-contact .dot {
    margin: 0 6px;
  }
}

.footer-nav {
  display: flex;
  gap: 22px;
  font-size: 14px;
  margin-left: auto;
}

.footer-nav a:hover {
  color: #fff;
}

.footer-copy {
  width: 100%;
  font-size: 13px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-lic {
  margin-left: 14px;
  color: #6f7f95;
}

@media (max-width: 780px) {
  .footer-lic {
    display: block;
    margin: 6px 0 0;
  }
}

/* ---------------- 入场动画 ---------------- */

/* ---------------- 子页面头图 ---------------- */

.page-head {
  position: relative;
  background: var(--band);
  color: #fff;
  overflow: hidden;
}

.page-head-media {
  position: absolute;
  inset: 0;
}

.page-head-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 55%;
  filter: saturate(1.05) brightness(1.05);
}

.page-head-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(9, 17, 30, 0.94) 0%, rgba(9, 17, 30, 0.78) 46%, rgba(9, 17, 30, 0.5) 100%);
}

.page-head-inner {
  position: relative;
  padding-top: 78px;
  padding-bottom: 62px;
}

.page-head h1 {
  font-size: 38px;
}

.page-head-sub {
  margin-top: 14px;
  max-width: 66ch;
  color: #c8d3e2;
  font-size: 16.5px;
}

.page-head-short .page-head-inner {
  padding-top: 64px;
  padding-bottom: 52px;
}

.page-head-short h1 {
  font-size: 30px;
}

.nav a.is-current {
  color: var(--brand);
  border-bottom-color: var(--brand);
}

/* ---------------- 业绩列表 ---------------- */

.grid-loading {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 15px;
  padding: 26px 0;
  text-align: center;
}

.case-noimg {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  color: var(--muted);
  font-size: 13px;
  background: var(--surface-2);
}

/* 业绩页的详细卡片：两列，图片置顶，给文字留出宽度 */
.case-grid-detail {
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.case-grid-detail .case-media {
  aspect-ratio: 16 / 10;
}

.case-grid-detail .case-body {
  padding: 22px 24px 26px;
}

.proj-meta {
  margin: 10px 0 0;
}

.proj-meta > div {
  display: flex;
  gap: 10px;
  font-size: 13.5px;
  margin-bottom: 4px;
}

.proj-meta dt {
  flex: none;
  width: 68px;
  color: var(--muted);
}

.proj-meta dd {
  margin: 0;
  color: var(--ink-2);
}

@media (max-width: 1000px) {
  .case-grid-detail {
    grid-template-columns: 1fr;
  }
}

/* ---------------- 上传资料页 ---------------- */

.upload-wrap {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 26px;
  align-items: start;
}

@media (max-width: 1000px) {
  .upload-wrap {
    grid-template-columns: 1fr;
  }
}

.upload-card,
.tips-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 26px 28px;
  box-shadow: var(--shadow);
}

.upload-card h2 {
  font-size: 17px;
  margin-bottom: 16px;
}

.upload-card h2.form-sec {
  margin-top: 26px;
}

.form-row {
  margin-bottom: 14px;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 700px) {
  .form-row-2 {
    grid-template-columns: 1fr;
  }
}

.fld {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.fld > span {
  font-size: 13.5px;
  color: var(--ink-2);
}

.fld input[type='text'],
.fld input[type='tel'],
.fld select,
.fld textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 15px;
  font-family: inherit;
  color: inherit;
  background: #fff;
  outline: none;
}

.fld textarea {
  resize: vertical;
  line-height: 1.7;
}

.fld input:focus,
.fld select:focus,
.fld textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(23, 69, 127, 0.1);
}

.fld .is-error {
  border-color: #c0392b;
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.12);
}

.req {
  color: #c0392b;
  font-style: normal;
}

.drop {
  border: 1px dashed #c4cedb;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  padding: 26px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.drop:hover,
.drop.is-over {
  border-color: var(--brand);
  background: rgba(23, 69, 127, 0.05);
}

.drop svg {
  width: 26px;
  height: 26px;
  color: var(--brand);
}

.drop-title {
  margin-top: 10px;
  font-size: 15px;
  color: var(--ink);
}

.drop-hint {
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.7;
}

.file-list {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 14px;
}

.file-icon {
  display: grid;
  place-items: center;
  color: var(--muted);
  flex: none;
}

.file-icon svg {
  width: 17px;
  height: 17px;
}

.file-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-size {
  flex: none;
  color: var(--muted);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}

.file-rm {
  flex: none;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: #c0392b;
  padding: 2px;
  display: grid;
  place-items: center;
}

.file-rm svg {
  width: 14px;
  height: 14px;
}

.agree {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: 18px;
  font-size: 13.5px;
  color: var(--ink-2);
  cursor: pointer;
  line-height: 1.7;
}

.agree input {
  margin-top: 4px;
  flex: none;
  accent-color: var(--brand);
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.form-note {
  font-size: 13px;
  color: var(--muted);
}

.tips-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.tips-card h3 {
  font-size: 16px;
  margin-bottom: 14px;
}

.tips-p {
  font-size: 14px;
  color: var(--ink-2);
  margin-top: 8px;
}

.tips-contact {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 6px;
}

.tips-contact a {
  color: var(--brand);
  font-variant-numeric: tabular-nums;
}

.tick-list.dark-text li {
  color: var(--ink-2);
  font-size: 14px;
}

.step-list {
  counter-reset: step;
}

.step-list li {
  position: relative;
  padding-left: 34px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--ink-2);
}

.step-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--brand);
  font-size: 12px;
  display: grid;
  place-items: center;
  font-variant-numeric: tabular-nums;
}

.done {
  text-align: center;
  padding: 26px 10px;
}

.done-icon {
  display: inline-grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(26, 156, 83, 0.12);
  color: #10794a;
  margin-bottom: 16px;
}

.done-icon svg {
  width: 28px;
  height: 28px;
}

.done h2 {
  font-size: 21px;
  margin-bottom: 12px;
}

.done p {
  color: var(--ink-2);
  font-size: 15px;
  margin-bottom: 8px;
}

.done a {
  color: var(--brand);
}

.done-actions {
  margin-top: 20px;
}

/* ---------------- Toast ---------------- */

.toasts {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}

.toast {
  background: #101a2b;
  color: #fff;
  padding: 11px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  box-shadow: 0 12px 30px -12px rgba(0, 0, 0, 0.6);
  max-width: min(92vw, 460px);
}

.toast.err {
  background: #7f2318;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------------- 响应式 ---------------- */

@media (max-width: 1000px) {
  .hero h1 {
    font-size: 40px;
  }
  .hero h1 span {
    font-size: 24px;
  }
  .sec-head h2,
  .about-text h2 {
    font-size: 28px;
  }
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
  }
  .svc-grid,
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-facts {
    grid-template-columns: repeat(2, 1fr);
  }
  .flow-list {
    grid-template-columns: repeat(3, 1fr);
  }
  .about-wrap,
  .contact-grid,
  .client-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 780px) {
  .topbar-inner {
    padding: 10px 16px;
    gap: 12px;
  }
  .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 8px 16px 14px;
    box-shadow: 0 16px 30px -22px rgba(15, 26, 43, 0.8);
  }
  .nav.is-open {
    display: flex;
  }
  .nav a {
    padding: 12px 0;
    border-bottom: 1px solid var(--line-2);
  }
  .nav a:last-child {
    border-bottom: 0;
  }
  .menu-btn {
    display: grid;
  }
  .topbar-tel {
    display: none;
  }
  .brand-text strong {
    font-size: 15px;
  }
  .hero {
    min-height: 0;
  }
  .hero-inner {
    padding: 96px 16px 32px;
  }
  .hero h1 {
    font-size: 29px;
  }
  .hero h1 span {
    font-size: 19px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-facts {
    grid-template-columns: 1fr 1fr;
    padding: 0 16px 26px;
  }
  .hero-facts li {
    padding: 12px 10px 12px 0;
  }
  .band {
    padding: 60px 0;
  }
  .wrap {
    padding: 0 16px;
  }
  .sec-head {
    margin-bottom: 32px;
  }
  .sec-head h2,
  .about-text h2 {
    font-size: 23px;
  }
  .sec-lead {
    font-size: 15px;
  }
  .value-grid {
    grid-template-columns: 1fr;
  }
  .motto {
    padding-left: 18px;
    margin-bottom: 30px;
  }
  .motto p {
    font-size: 21px;
  }
  .svc-grid,
  .case-grid {
    grid-template-columns: 1fr;
  }
  .flow-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-list li {
    flex-direction: column;
    gap: 4px;
  }
  .contact-key {
    width: auto;
  }
  .footer-nav {
    margin-left: 0;
    flex-wrap: wrap;
    gap: 14px 20px;
  }
}