:root {
  --blue: #017acf;
  --blue-deep: #005591;
  --navy: #001d31;
  --text: #333;
  --muted: #666;
  --brown: #786044;
  --line: #eee;
  --white: #fff;
  --content: 1200px;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }

.container {
  width: min(var(--content), calc(100% - 40px));
  margin: 0 auto;
}

/* ===== hero / header from Lanhu 1920 ===== */
.hero-stage {
  position: relative;
  height: 299px;
}
.hero-stage.is-home { height: 511px; }
.hero-bg {
  position: absolute;
  inset: 0 0 80px 0;
  background: #7d8b7a url("../images/hero-inner.jpg") center top / cover no-repeat;
}
.hero-stage.is-home .hero-bg {
  background-image: url("../images/hero-tulou.jpg");
  background-position: center;
}
.header-box {
  position: relative;
  z-index: 2;
  height: calc(100% - 80px);
}
.brand {
  position: absolute;
  left: 0;
  top: 55px;
}
.hero-stage:not(.is-home) .brand { top: 21px; }
.brand img {
  height: 60px;
  width: auto;
  max-width: 273px;
}
.search {
  position: absolute;
  right: 0;
  top: 40px;
  display: flex;
  align-items: center;
  width: 440px;
  height: 60px;
  padding: 0 0 0 24px;
  border-radius: 30px;
  background: #fff;
  overflow: hidden;
  z-index: 3;
}
.hero-stage:not(.is-home) .search { top: 10px; }
.search input {
  flex: 1;
  min-width: 0;
  height: 100%;
  border: 0;
  background: transparent;
  padding: 0;
  outline: none;
  color: #333;
  font-size: 20px;
  appearance: none;
  -webkit-appearance: none;
}
.search input::placeholder { color: #b0b0b0; }
.search button {
  width: 138px;
  height: 60px;
  border: 0;
  background: var(--blue);
  color: #fff;
  cursor: pointer;
  font-size: 20px;
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.search button img {
  width: 20px;
  height: 20px;
}

.menu-btn {
  display: none;
  position: absolute;
  right: 0;
  top: 18px;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  z-index: 3;
}
.menu-btn span {
  display: block;
  height: 2px;
  margin: 7px 0;
  background: #333;
}

.nav-wrap {
  position: relative;
  z-index: 2;
  background: var(--blue);
}
.nav {
  height: 80px;
  display: flex;
  align-items: stretch;
  justify-content: flex-start;
}
.nav a {
  color: #fff;
  font-size: 16px;
  min-width: 120px;
  padding: 0 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}
.nav a:hover,
.nav a:focus-visible,
.nav a.is-active {
  background: var(--blue-deep);
  font-weight: 600;
}

/* ===== home banner ===== */
.home-mid {
  background: #f3f3f3 url("../images/home-mid-bg.jpg") center top / cover no-repeat;
  padding: 20px 0 0;
}
.home-banner {
  background: #fff;
  padding: 37px 0 0;
}
.home-banner.no-head {
  padding-top: 0;
}
.home-banner.no-head h1,
.home-banner.no-head .sub {
  display: none;
}
.home-banner h1 {
  margin: 0;
  text-align: center;
  font-size: 30px;
  font-weight: 600;
  line-height: 42px;
}
.home-banner .sub {
  margin: 5px 0 31px;
  text-align: center;
  color: #333;
  font-size: 20px;
  line-height: 28px;
}
.banner-photo {
  height: 490px;
  background: #c00 url("../images/banner-group.jpg") center / cover no-repeat;
  transition: background-image .25s ease;
}
.banner-bar {
  height: 50px;
  background: rgba(0,0,0,.5);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 13px 0 13px;
  font-size: 16px;
  overflow: hidden;
}
.banner-bar > span:first-child {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pager-num {
  display: flex;
  flex-shrink: 0;
  gap: 10px;
}
.pager-num i {
  width: 20px;
  height: 20px;
  background: #a4a4a4;
  color: #fff;
  font-size: 14px;
  font-style: normal;
  display: grid;
  place-items: center;
  line-height: 1;
  cursor: pointer;
  user-select: none;
}
.pager-num i.on { background: #fff; color: #333; }

/* ===== home blocks ===== */
.section {
  padding: 30px 0 20px;
  background: #fff;
}
.block-grid {
  display: grid;
  grid-template-columns: repeat(3, 380px);
  justify-content: space-between;
  row-gap: 0;
}
.block { min-width: 0; }
.block-head {
  height: 200px;
  display: flex;
  align-items: center;
  color: #017acf;
  font-size: 36px;
  font-weight: 600;
  line-height: 50px;
  letter-spacing: 2px;
  padding-left: 31px;
  background: #eef5fb url("../images/card-bg.png") center / cover no-repeat;
  position: relative;
  overflow: hidden;
}
.block-head img {
  position: absolute;
  right: 0;
  top: 0;
  height: 200px;
  width: 249px;
  object-fit: cover;
  object-position: right center;
}
.block-head span { position: relative; z-index: 1; }
.block-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 11px 0 10px;
  font-size: 22px;
  font-weight: 600;
  color: #222;
  cursor: pointer;
}
.block-label:hover { color: var(--blue); }
.block-label img { width: 29px; height: 27px; }
.block-list a {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 9px 1em 9px 0;
  color: #333;
  font-size: 16px;
  line-height: 22px;
  min-width: 0;
  overflow: hidden;
}
.block-list a span {
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.block-list a::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--blue);
  flex: none;
}

/* ===== members ===== */
.members {
  padding: 28px 0 56px;
  background: #fff;
}
.members-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
}
.members-title {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--brown);
  font-size: 16px;
  font-weight: 600;
}
.members-title img { width: 29px; height: 28px; }
.tabs { display: flex; flex-wrap: wrap; gap: 10px; }
.tabs button {
  border: 0;
  background: rgba(216,216,216,.47);
  color: #333;
  width: 93px;
  height: 32px;
  cursor: pointer;
  font-size: 16px;
}
.tabs button.on {
  background: var(--blue);
  color: #fff;
}
.member-row {
  position: relative;
}
.member-viewport {
  overflow: hidden;
  width: 100%;
}
.member-track {
  display: flex;
  gap: 28px;
  width: max-content;
  will-change: transform;
  transition: none;
}
.member-card {
  display: block;
  text-align: center;
  flex: none;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}
.member-card img {
  width: 217px;
  height: 300px;
  object-fit: cover;
  background: #ddd;
}
.member-card.is-logo img {
  width: 217px;
  height: 217px;
  object-fit: contain;
  background: #fff;
  border: 1px solid #eee;
}
.member-card p {
  margin: 8px 0 0;
  font-size: 18px;
}
.member-row .arrow {
  position: absolute;
  top: 79px;
  width: 51px;
  height: 127px;
  border: 0;
  padding: 0;
  cursor: pointer;
  z-index: 2;
  background: transparent center / 51px 127px no-repeat;
}
.member-row .arrow.prev {
  left: 1px;
  background-image: url("../images/arrow-left.png");
}
.member-row .arrow.next {
  right: 1px;
  background-image: url("../images/arrow-right.png");
}

/* ===== inner pages ===== */
.page-inner { background: #f5f5f5; }
.crumb {
  height: 40px;
  margin: 19px auto 20px;
  background: #eee;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 29px;
  font-size: 14px;
  color: #888;
}
.crumb img { width: 18px; height: 18px; }
.crumb a { color: #888; }
.inner {
  display: grid;
  grid-template-columns: 380px 790px;
  gap: 28px;
  padding-bottom: 56px;
  align-items: start;
}
.side { background: #fff; min-height: 778px; }
.side-title {
  height: 200px;
  background: #e9f6ff url("../images/card-bg.png") center / cover no-repeat;
  position: relative;
  overflow: hidden;
}
.side-title img {
  position: absolute;
  right: 0;
  top: 0;
  height: 200px;
  width: 249px;
  object-fit: cover;
}
.side-title b {
  position: relative;
  z-index: 1;
  display: block;
  padding: 50px 0 0 27px;
  font-size: 36px;
  line-height: 50px;
  font-weight: 600;
  color: #017acf;
}
.side-nav a {
  display: block;
  height: 60px;
  line-height: 60px;
  padding: 0 28px;
  font-size: 24px;
  color: #333;
  position: relative;
}
.side-nav a.on {
  background: rgba(1,122,207,.1);
  font-weight: 600;
  color: #222;
}
.side-nav a.on::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 13px;
  width: 6px;
  height: 34px;
  background: var(--blue);
}
.hotline {
  width: 340px;
  max-width: calc(100% - 24px);
  height: 120px;
  margin: 20px auto 24px;
  background: url("../images/hotline.png") center / 100% 100% no-repeat;
  padding: 0 12px 0 42%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  box-sizing: border-box;
}
.hotline small {
  display: block;
  color: #666;
  font-size: 16px;
  line-height: 22px;
  white-space: nowrap;
}
.hotline strong {
  display: block;
  margin-top: 4px;
  font-size: 24px;
  font-weight: 600;
  color: #222;
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.panel {
  background: #fff;
  min-height: 778px;
  padding: 24px 22px 40px;
}
.panel h2 {
  margin: 0 0 13px;
  text-align: center;
  font-size: 24px;
  font-weight: 600;
}
.meta {
  text-align: center;
  color: #999;
  font-size: 14px;
  margin-bottom: 32px;
}
.article {
  color: #555;
  font-size: 14px;
  line-height: 30px;
}
.article-rich img,
.article-rich video {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 16px 0;
}
.article-rich iframe {
  width: 100%;
  max-width: 744px;
  height: 360px;
  border: 0;
  display: block;
  margin: 16px 0;
}
.article-rich p { margin: 0 0 12px; }
.article-rich h1,
.article-rich h2,
.article-rich h3,
.article-rich h4 { color: #222; margin: 18px 0 8px; line-height: 1.4; }
.article-rich h1 { font-size: 28px; }
.article-rich h2 { font-size: 22px; }
.article-rich h3 { font-size: 18px; }
.article-rich blockquote {
  margin: 12px 0;
  padding: 8px 14px;
  border-left: 3px solid var(--blue);
  color: #666;
  background: #f7fbfe;
}
.article-rich table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
}
.article-rich th,
.article-rich td {
  border: 1px solid #ddd;
  padding: 8px 10px;
}
.article img.wide,
.wide {
  width: 744px;
  max-width: 100%;
  height: 304px;
  object-fit: cover;
  margin-top: 18px;
}
.about-photo {
  position: relative;
  width: 744px;
  max-width: 100%;
  margin-top: 18px;
}
.about-photo .wide { margin-top: 0; width: 100%; }
.about-photo::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 50px;
  background: rgba(0,0,0,.5);
}

.news-item {
  display: grid;
  grid-template-columns: 122px 1fr;
  gap: 12px;
  padding: 0 0 21px;
  margin-bottom: 21px;
  border-bottom: 1px solid #f0f0f0;
  align-items: flex-start;
}
.news-item img,
.news-item .cover-blank {
  width: 122px;
  height: 87px;
  object-fit: cover;
  background: #eee;
}
.news-item .cover-blank { display: block; }
.news-item > div { min-width: 0; }
.news-item h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-item .news-summary {
  margin: 0 0 6px;
  color: #888;
  font-size: 14px;
  line-height: 22px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-item time { display: block; color: #999; font-size: 14px; }

.card-list { display: grid; gap: 20px; }
.media-card {
  display: grid;
  grid-template-columns: 232px 1fr;
  gap: 20px;
  align-items: flex-start;
  color: inherit;
  cursor: pointer;
}
a.media-card:hover h3 { color: var(--blue); }
.video-card { display: block; color: inherit; cursor: pointer; }
a.video-card:hover h3 { color: var(--blue); }
.article-video {
  display: block;
  width: 100%;
  max-height: 520px;
  margin: 0 0 22px;
  background: #000;
}
.media-card img,
.media-card .cover-blank {
  width: 232px;
  height: 143px;
  object-fit: cover;
  background: #eee;
}
.media-card .cover-blank { display: block; }
.media-card > div {
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 143px;
}
.media-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 400;
  line-height: 22px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.media-card .news-summary {
  margin: 0 0 8px;
  color: #888;
  font-size: 14px;
  line-height: 22px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.media-card time { margin-top: auto; color: #999; font-size: 14px; }

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 232px);
  justify-content: space-between;
  row-gap: 20px;
}
.video-card h3 {
  margin: 10px 0 0;
  font-size: 16px;
  font-weight: 400;
  line-height: 22px;
}
.video-thumb {
  position: relative;
  width: 232px;
  height: 143px;
  overflow: hidden;
}
.video-thumb img,
.video-thumb .cover-blank {
  width: 232px;
  height: 143px;
  object-fit: cover;
  background: #eee;
}
.video-thumb .cover-blank { display: block; }
.video-thumb .play {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 30px;
  height: 30px;
  margin: -15px 0 0 -15px;
}
.video-layer {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px 32px;
  background: rgba(0, 0, 0, .72);
}
.video-layer-box {
  width: min(960px, 92vw);
}
.video-layer-box h3 {
  margin: 0 0 12px;
  color: #fff;
  font-size: 16px;
  font-weight: 400;
  line-height: 22px;
}
.video-layer-stage {
  position: relative;
  padding-top: 56.25%;
  background: #000;
}
.video-layer-stage .video-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #000;
}
.video-layer .empty-tip { color: #fff; }
.video-layer-close {
  position: absolute;
  top: 16px;
  right: 20px;
  width: 36px;
  height: 36px;
  border: 0;
  background: transparent;
  color: #fff;
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
}

.member-grid {
  display: grid;
  grid-template-columns: repeat(3, 217px);
  justify-content: space-between;
  row-gap: 17px;
}
.member-grid .member-card img {
  width: 217px;
  height: 300px;
}
.member-grid .member-card.is-logo img {
  width: 217px;
  height: 217px;
}

.profile {
  display: grid;
  grid-template-columns: 217px 1fr;
  gap: 28px;
  align-items: start;
}
.profile img {
  width: 217px;
  height: 300px;
  object-fit: cover;
  background: #ddd;
}
.profile.is-logo { grid-template-columns: 180px 1fr; }
.profile.is-logo img {
  width: 180px;
  height: 180px;
  object-fit: contain;
  background: #fff;
  border: 1px solid #eee;
}
.profile-head {
  position: relative;
  margin: 0 0 10px;
  min-height: 34px;
}
.profile h2 {
  margin: 0;
  padding: 0 4.5em;
  text-align: center;
  font-size: 24px;
}
.profile-group {
  position: absolute;
  right: 0;
  top: 0;
  color: #999;
  font-size: 14px;
  line-height: 34px;
  white-space: nowrap;
}
.profile .meta-line { margin: 0 0 6px; color: #666; font-size: 16px; }

.pager {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 28px;
  color: #666;
  font-size: 14px;
}
.pager a,
.pager span {
  min-width: 24px;
  height: 24px;
  padding: 0 6px;
  display: grid;
  place-items: center;
  color: inherit;
}
.pager a { cursor: pointer; }
.pager a:hover { color: var(--blue); }
.pager a.on,
.pager span.on {
  background: var(--blue);
  color: #fff;
}
.pager span.off { opacity: .35; cursor: default; }

.form {
  display: grid;
  gap: 12px;
  max-width: 560px;
  margin: 20px auto 0;
}
.form input, .form textarea {
  width: 100%;
  border: 1px solid #e5e5e5;
  padding: 12px 14px;
}
.form button {
  height: 44px;
  border: 0;
  background: var(--blue);
  color: #fff;
  cursor: pointer;
}
.form-msg { color: var(--blue); min-height: 1.4em; }
.join-tip {
  text-align: center;
  font-size: 14px;
  line-height: 1.8;
  color: #555;
}
.join-tip a { color: var(--blue); }
.join-download {
  text-align: center;
  margin: 8px 0 4px;
}
.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 240px;
  height: 44px;
  padding: 0 22px;
  background: var(--blue);
  color: #fff !important;
  border-radius: 4px;
  font-size: 16px;
}
.btn-download:hover { background: var(--blue-deep); }
.empty-tip {
  color: var(--muted);
  text-align: center;
  padding: 48px 12px;
  font-size: 16px;
}
.search-sub {
  margin: 28px 0 12px;
  font-size: 18px;
  color: var(--blue-deep);
}
.search-people {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}
.search-people a {
  color: var(--blue);
}

/* ===== footer ===== */
.footer {
  background: var(--navy);
  color: #fff;
  min-height: 288px;
  padding: 46px 0 50px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  column-gap: 21px;
  align-items: stretch;
}
.footer-card {
  background: rgba(255,255,255,.24);
  min-height: 191px;
  padding: 24px 20px 16px;
  font-size: 13px;
  line-height: 22px;
  display: flex;
  flex-direction: column;
}
.footer p { margin: 0; }
.qr-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 18px;
  justify-items: center;
  align-content: center;
  padding: 18px 16px;
}
.qr {
  text-align: center;
  font-size: 12px;
  line-height: 1.4;
}
.qr-ph {
  display: block;
  width: 88px;
  height: 88px;
  background: #fff;
  margin: 0 auto 8px;
  object-fit: contain;
}

/* ===== responsive ===== */
@media (max-width: 1260px) {
  .block-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .member-grid .member-card img { width: 100%; height: auto; aspect-ratio: 217/300; }
  .member-grid .member-card.is-logo img { aspect-ratio: 1/1; }
  .profile, .profile.is-logo { grid-template-columns: 1fr; }
  .inner { grid-template-columns: 280px 1fr; }
  .hotline { height: 100px; padding-left: 40%; }
  .hotline strong { font-size: 20px; }
  .side-title b { font-size: 28px; line-height: 40px; }
  .side-nav a { font-size: 18px; }
  .video-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .video-thumb, .video-thumb img { width: 100%; height: auto; aspect-ratio: 232/143; }
  .member-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
  .footer { min-height: 0; height: auto; padding: 36px 0 24px; }
}

@media (max-width: 1100px) {
  .nav { height: auto; flex-wrap: wrap; }
  .nav a { min-width: 96px; min-height: 52px; font-size: 14px; }
  .block-grid { grid-template-columns: 1fr 1fr; }
  .banner-photo { height: 280px; }
  .search { width: 320px; }
  .search button { width: 110px; }
}

@media (max-width: 760px) {
  .container { width: calc(100% - 28px); }
  .hero-stage,
  .hero-stage.is-home { height: auto; min-height: 220px; }
  .header-box { height: auto; min-height: 160px; }
  .brand, .search { position: static; }
  .header-box {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0 12px;
    gap: 10px;
  }
  .search { display: flex; width: 100%; }
  .menu-btn { display: block; position: static; }
  .nav-wrap { display: none; }
  .nav-wrap.is-open { display: block; }
  .nav { flex-direction: column; }
  .home-banner { padding: 18px 0 0; }
  .home-banner h1 { font-size: 20px; }
  .home-banner .sub { font-size: 14px; }
  .banner-photo { height: 180px; }
  .block-grid,
  .inner,
  .footer-grid,
  .news-item,
  .media-card,
  .member-grid,
  .video-grid {
    grid-template-columns: 1fr;
  }
  .member-row .arrow { display: none; }
  .block-head { font-size: 28px; }
  .side { min-height: 0; }
  .side-title { height: auto; min-height: 140px; }
  .side-nav { display: flex; flex-wrap: wrap; }
  .side-nav a { height: auto; line-height: 40px; font-size: 16px; }
  .hotline { width: 100%; max-width: 340px; height: 110px; }
  .panel { padding: 18px 14px 28px; min-height: 0; }
  .qr-box { justify-items: center; }
  .section { padding: 20px 0 8px; }
  .footer-grid { grid-template-columns: 1fr; }
}