:root {
  --pt-brand-blue: #164082;
  /* 内容区点缀色（与页头同色，可由后台主题覆盖） */
  --pt-brand-red: #164082;
  --pt-brand-red-90: rgba(22, 64, 130, 0.9);
  --pt-brand-hover-bg: #eef3fb;
  --pt-brand-hover-border: #c5d9ef;
  --pt-brand-hover-soft: #f5f8fc;
  --pt-brand-shadow-rgb: 22, 64, 130;
  --pt-brand-banner-dark: #1a3a6e;
  --pt-brand-gradient-mid: #2a5ca8;
  --pt-brand-gradient-end: #4a7bc8;
  --pt-brand-gold: #C5A059;
  --pt-text: #333333;
  --pt-text-muted: #666666;
  --pt-bg-page: #f8f8f8;
  --pt-bg-honor: #f0f0f0;
  --pt-footer-bg: #1a1a1a;
  --pt-container: 1400px;
  --pt-header-height: 80px;
  --pt-hero-min-height: 420px;
  --pt-hero-height: calc(100vh - var(--pt-header-height));
}

@supports (height: 100dvh) {
  :root {
    --pt-hero-height: calc(100dvh - var(--pt-header-height));
  }
}

* {
  box-sizing: border-box;
}

body.pt-platform {
  margin: 0;
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  color: var(--pt-text);
  background: var(--pt-bg-page);
}

.is-hidden {
  display: none !important;
}

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

.pt-serif {
  font-family: "Noto Serif SC", "SimSun", serif;
}

/* Content grid — 对齐案例站 max-width: 1400px 居中 */
body.pt-platform .pt-container,
body.pt-platform .pt-grid {
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  max-width: 1400px;
  box-sizing: border-box;
}

body.pt-platform .pt-container {
  padding-left: 16px;
  padding-right: 16px;
}

@media (min-width: 1400px) {
  body.pt-platform .pt-container {
    padding-left: 0;
    padding-right: 0;
  }
}

.pt-row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -12px;
  width: 100%;
  min-width: 0;
}

.pt-col {
  padding: 0 12px;
}

.pt-col-4 {
  width: 33.333%;
}

.pt-col-5 {
  width: 41.666%;
}

.pt-col-6 {
  width: 50%;
}

.pt-col-7 {
  width: 58.333%;
}

.pt-col-8 {
  width: 66.666%;
}

.pt-main {
  min-height: 200px;
  width: 100%;
  overflow-x: hidden;
}

/* Header */
.pt-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--pt-header-height);
  background: var(--pt-brand-blue);
  color: #fff;
}

.pt-header .pt-container.pt-header-inner {
  height: 100%;
}

.pt-header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.pt-header-brand {
  display: flex;
  align-items: center;
  flex: 0 1 auto;
  min-width: 0;
  max-width: 38%;
}

.pt-header-logo-image {
  flex-shrink: 0;
  line-height: 0;
}

.pt-header-logo-image a {
  display: block;
}

.pt-header-logo {
  display: block;
  height: 48px;
  width: auto;
  max-height: 56px;
  max-width: 100%;
  object-fit: contain;
  object-position: left center;
}

.pt-header-logo.is-hidden {
  display: none;
}

.pt-header-title-wrap {
  border-left: 1px solid rgba(255, 255, 255, 0.3);
  padding-left: 12px;
  min-width: 0;
}

.pt-header-title {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.15em;
  line-height: 1.1;
  white-space: nowrap;
}

.pt-header-tagline {
  margin: 4px 0 0;
  font-size: 10px;
  text-transform: uppercase;
  opacity: 0.8;
  letter-spacing: 0.05em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pt-nav {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  justify-content: flex-end;
  position: relative;
}

.pt-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: nowrap;
  align-items: stretch;
  justify-content: flex-end;
  max-width: 100%;
  height: var(--pt-header-height);
}

.pt-nav-list > li {
  position: relative;
  display: flex;
  align-items: stretch;
  flex-shrink: 0;
}

.pt-nav-list li a {
  display: flex;
  align-items: center;
  position: relative;
  height: 100%;
  padding: 0 25px;
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  line-height: 1.2;
}

.pt-nav-list > li > a::before {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 16px;
  height: 2px;
  background: #fff;
  border-radius: 1px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.22s ease;
  pointer-events: none;
}

.pt-nav-list > li > a.is-active::before,
.pt-nav-list > li.is-active > a::before {
  transform: scaleX(1);
}

.pt-nav-sub {
  display: block;
  list-style: none;
  margin: 0;
  padding: 8px 0;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  z-index: 120;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
}

.pt-nav-list > li:hover > .pt-nav-sub {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.pt-nav-sub li {
  position: relative;
}

.pt-nav-sub li a {
  display: block;
  height: auto;
  padding: 10px 18px;
  color: #333;
  font-size: 14px;
  font-weight: 400;
  white-space: nowrap;
}

.pt-nav-sub li a:hover {
  opacity: 1;
  background: var(--pt-brand-hover-bg);
  color: var(--pt-brand-blue);
}

.pt-nav-sub li.has-sub > a::after {
  content: "›";
  margin-left: 8px;
  border: none;
  font-size: 16px;
  line-height: 1;
  opacity: 0.6;
}

.pt-nav-sub .pt-nav-sub {
  top: 0;
  left: 100%;
}

.pt-nav-sub li:hover > .pt-nav-sub {
  display: block;
}

.pt-nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}

.pt-nav-toggle svg {
  width: 24px;
  height: 24px;
  display: block;
}

/* Hero */
.pt-hero {
  position: relative;
  height: var(--pt-hero-height);
  min-height: var(--pt-hero-min-height);
  overflow: hidden;
  background: #111;
}

.pt-hero-swiper {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.pt-hero-swiper .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pt-hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  pointer-events: none;
}

.pt-hero-en {
  margin: 0 0 16px;
  font-size: 20px;
  font-weight: 300;
  letter-spacing: 0.4em;
  opacity: 0.9;
}

.pt-hero-en.is-hidden {
  display: none;
}

.pt-hero-cn {
  margin: 0 0 24px;
  font-size: clamp(36px, 6vw, 84px);
  font-weight: 700;
  letter-spacing: 0.2em;
  line-height: 1.2;
}

.pt-hero-tagline {
  margin: 0;
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 300;
  letter-spacing: 0.05em;
  line-height: 1.6;
  opacity: 0.9;
  border-top: 1px solid rgba(255, 255, 255, 0.4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  padding: 16px 48px;
  max-width: 90%;
}

.pt-hero-tagline.is-hidden {
  display: none;
}

.pt-hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  text-align: center;
  pointer-events: none;
}

.pt-hero-scroll i {
  display: block;
  width: 20px;
  height: 30px;
  margin: 0 auto;
  border-radius: 12px;
  border: 2px #fff solid;
  position: relative;
}

.pt-hero-scroll i::before {
  content: "";
  display: block;
  width: 4px;
  height: 10px;
  background: #fff;
  border-radius: 2px;
  position: absolute;
  left: 50%;
  top: 3px;
  transform: translate(-50%, 0);
  animation: pt-scrollmouse 2s linear infinite;
}

.pt-hero-scroll span {
  display: block;
  margin-top: 12px;
  font-family: Arial, sans-serif;
  font-size: 12px;
  line-height: 20px;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@keyframes pt-scrollmouse {
  0% {
    transform: translate(-50%, 0);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, 12px);
    opacity: 0;
  }
}

.pt-hero-nav {
  position: absolute;
  inset: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  pointer-events: none;
}

.pt-hero-nav-btn {
  pointer-events: auto;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.3s;
}

.pt-hero-nav-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.pt-hero-nav-btn svg {
  width: 24px;
  height: 24px;
}

/* Sections */
.pt-section {
  padding: 64px 0;
}

.pt-section-white {
  background: #fff;
}

.pt-section-honor {
  background: var(--pt-bg-honor);
}

.pt-section-bottom {
  background: var(--pt-bg-page);
  padding: 48px 0;
}

.pt-section-gallery {
  background: #fff;
  padding-bottom: 64px;
}

.pt-section-banner {
  padding: 32px 0;
  background: var(--pt-bg-page);
}

.pt-section-head-en {
  margin-bottom: 32px;
}

.pt-section-head-en.center {
  text-align: center;
}

/* 区块标题统一：中文主标题 + 英文 14px 副标题（中文在前） */
.pt-section-head-en .cn,
.pt-red-bar-head .cn,
.pt-white-card-head .cn,
.pt-public-good-card .pt-section-title .cn {
  color: #333;
  font-weight: bold;
}

.pt-section-head-en .en,
.pt-red-bar-head .en,
.pt-white-card-head .en,
.pt-public-good-card .pt-section-title .en {
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #9ca3af;
}

.pt-section-head-en .cn {
  display: block;
  font-size: 28px;
  font-family: "Noto Serif SC", "SimSun", serif;
  letter-spacing: 0.05em;
}

.pt-section-head-en .en {
  display: block;
  margin-top: 4px;
}

.pt-red-bar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--pt-brand-red);
  padding-bottom: 8px;
  margin-bottom: 24px;
}

.pt-red-bar-head-left {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
}

.pt-red-bar-head .cn {
  font-size: 20px;
}

.pt-red-bar-arrow {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--pt-brand-red);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pt-red-bar-arrow svg {
  width: 16px;
  height: 16px;
}

/* News cards */
.pt-news-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.pt-news-card {
  cursor: pointer;
}

.pt-news-card-thumb {
  position: relative;
  margin-bottom: 16px;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f3f4f6;
}

.pt-news-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.pt-news-card:hover .pt-news-card-thumb img {
  transform: scale(1.05);
}

.pt-date-badge {
  position: absolute;
  top: 0;
  left: 0;
  background: var(--pt-brand-red);
  color: #fff;
  font-size: 10px;
  padding: 4px 8px;
}

.pt-news-card h3,
.pt-video-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.3s;
}

.pt-news-card:hover h3,
.pt-video-card:hover h3 {
  color: var(--pt-brand-red);
}

.pt-arrow-red {
  color: var(--pt-brand-red);
  font-size: 18px;
  line-height: 1;
}

/* Video */
.pt-video-card-player {
  position: relative;
  margin-bottom: 16px;
}

.pt-video-about {
  margin: 0 0 8px;
  font-size: 14px;
  color: #666;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pt-video-more {
  display: inline-block;
  text-decoration: none;
}

.pt-video-poster .pt-date-badge {
  z-index: 2;
  pointer-events: none;
}

.pt-featured-video {
  display: block;
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.pt-video-poster {
  position: absolute;
  inset: 0;
}

.pt-video-poster.is-hidden {
  display: none;
}

.pt-video-poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.8;
  display: block;
}

.pt-video-stage {
  display: none;
  position: absolute;
  inset: 0;
  background: #000;
}

.pt-video-stage.is-active {
  display: block;
}

.pt-video-stage video,
.pt-video-stage iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.pt-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  cursor: pointer;
}

.pt-play-btn-inner {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--pt-brand-red-90);
  display: flex;
  align-items: center;
  justify-content: center;
  padding-left: 4px;
  transition: transform 0.3s;
}

.pt-featured-video:hover .pt-play-btn-inner {
  transform: scale(1.1);
}

.pt-play-btn-inner svg {
  width: 32px;
  height: 32px;
  fill: #fff;
}

/* Honor infinite scroll */
.pt-honor-wrap {
  overflow: hidden;
  width: 100%;
}

.pt-honor-marquee {
  overflow: hidden;
  width: 100%;
}

.pt-honor-marquee .pt-honor-track {
  display: flex;
  gap: 24px;
  width: max-content;
  animation: pt-honor-scroll 45s linear infinite;
}

.pt-honor-marquee:hover .pt-honor-track {
  animation-play-state: paused;
}

@keyframes pt-honor-scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

.pt-honor-item {
  flex: 0 0 220px;
  background: #fff;
  padding: 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  display: block;
  color: inherit;
}

.pt-honor-item img {
  width: 100%;
  height: 128px;
  object-fit: cover;
  border: 1px solid #f3f4f6;
  margin-bottom: 12px;
  display: block;
}

.pt-honor-item p {
  margin: 0;
  font-size: 12px;
  font-weight: 500;
  color: #4b5563;
  line-height: 1.4;
}

/* Banner strip */
.pt-banner-strip-wrap {
  width: 100%;
  border-radius: 2px;
  overflow: hidden;
}

.pt-banner-swiper {
  width: 100%;
  height: 160px;
}

.pt-banner-swiper .swiper-slide {
  height: 100%;
}

.pt-banner-swiper .swiper-slide a {
  display: block;
  height: 100%;
}

.pt-banner-strip {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 2px;
  display: block;
}

.pt-banner-swiper .pt-banner-strip {
  height: 100%;
  border-radius: 0;
}

.pt-banner-pagination {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  z-index: 2;
  text-align: center;
  line-height: 0;
}

.pt-banner-pagination .swiper-pagination-bullet {
  width: 24px;
  height: 3px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.45);
  opacity: 1;
  margin: 0 3px;
  transition: width 0.25s, background 0.25s;
}

.pt-banner-pagination .swiper-pagination-bullet-active {
  width: 32px;
  background: #fff;
}

/* Campus news */
.pt-campus-featured {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.pt-date-box {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  background: var(--pt-brand-red);
  color: #fff;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  line-height: 1.2;
}

.pt-date-box .day {
  font-size: 24px;
  font-weight: 700;
}

.pt-date-box .month {
  font-size: 10px;
  opacity: 0.8;
}

.pt-campus-featured-body {
  flex: 1;
  min-width: 0;
}

.pt-campus-featured-body h4 {
  margin: 0 0 8px;
  font-weight: 700;
  color: #1f2937;
  cursor: pointer;
  transition: color 0.3s;
  line-height: 1.5;
}

.pt-campus-featured-body h4 a {
  color: inherit;
  text-decoration: none;
}

.pt-campus-featured-body h4:hover,
.pt-campus-featured-body h4:hover a {
  color: var(--pt-brand-red);
}

.pt-campus-featured-thumb {
  display: block;
  margin-top: 0;
  width: 100%;
  height: 192px;
  overflow: hidden;
  border-radius: 2px;
  background: #f3f4f6;
}

.pt-campus-featured-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s;
}

.pt-campus-featured-thumb:hover img {
  transform: scale(1.03);
}

.pt-campus-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pt-campus-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px dashed #e5e7eb;
  cursor: pointer;
}

.pt-campus-list li span:first-child {
  flex: 1;
  font-size: 14px;
  color: #374151;
  transition: color 0.3s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pt-campus-list li:hover span:first-child {
  color: var(--pt-brand-red);
}

.pt-campus-list li .date {
  font-size: 12px;
  color: #9ca3af;
  white-space: nowrap;
}

/* Research */
.pt-research-top-img {
  width: 100%;
  height: 192px;
  object-fit: cover;
  border-radius: 2px;
  margin-bottom: 24px;
  display: block;
}

.pt-research-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pt-research-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  cursor: pointer;
}

.pt-research-list li::before {
  content: "/";
  flex-shrink: 0;
  align-self: center;
  color: var(--pt-brand-gold);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.pt-research-list li a {
  font-size: 14px;
  color: #374151;
  transition: color 0.3s;
}

.pt-research-list li:hover a {
  color: var(--pt-brand-red);
}

/* Photo gallery */
.pt-photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.pt-photo-item {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  cursor: pointer;
}

.pt-photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s;
}

.pt-photo-item:hover img {
  transform: scale(1.05);
}

.pt-photo-label {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(255, 255, 255, 0.9);
  padding: 4px 16px;
  font-size: 12px;
}

/* Bottom area */
.pt-public-good-card {
  background: var(--pt-brand-red);
  color: #fff;
  padding: 24px;
  border-radius: 2px;
  height: 100%;
}

.pt-public-good-card .pt-section-title {
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  padding-bottom: 12px;
  margin: 0 0 24px;
  line-height: 1.4;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
}

.pt-public-good-card .pt-section-title .cn {
  font-size: 18px;
  color: #fff;
}

.pt-public-good-card .pt-section-title .en {
  color: rgba(255, 255, 255, 0.65);
}

.pt-public-good-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 2px;
  margin-bottom: 16px;
  display: block;
}

.pt-public-good-card h4 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
}

.pt-public-good-card p {
  margin: 0;
  font-size: 12px;
  opacity: 0.8;
  line-height: 1.6;
}

.pt-public-good-card .date {
  margin-top: 16px;
  font-size: 10px;
  opacity: 0.6;
}

.pt-bottom-stack {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.pt-white-card {
  background: #fff;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.pt-white-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #f3f4f6;
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.pt-white-card-head-left {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
}

.pt-white-card-head .cn {
  font-size: 18px;
}

.pt-recruitment-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  padding: 8px 0;
}

.pt-recruitment-item .label {
  font-size: 14px;
  font-weight: 500;
  color: #374151;
  white-space: nowrap;
}

.pt-recruitment-item .body {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: 1;
  justify-content: flex-end;
  min-width: 0;
}

.pt-recruitment-item .title {
  font-size: 14px;
  color: #4b5563;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pt-recruitment-item .date {
  font-size: 12px;
  color: #9ca3af;
  white-space: nowrap;
}

.pt-recruitment-item:hover .title {
  color: var(--pt-brand-red);
}

.pt-party-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pt-party-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  cursor: pointer;
  font-size: 14px;
}

.pt-party-list li span:first-child {
  flex: 1;
  color: #374151;
  transition: color 0.3s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pt-party-list li:hover span:first-child {
  color: var(--pt-brand-red);
}

.pt-party-list li .date {
  font-size: 12px;
  color: #9ca3af;
  white-space: nowrap;
}

/* Footer — 参考稿：四列链接 / 左联系右二维码 / 版权条 / 合规区 */
.pt-footer {
  background: var(--pt-footer-bg);
  color: #d1d5db;
  padding: 48px 0 0;
  font-size: 13px;
}

.pt-footer-inner {
  max-width: var(--pt-container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ① 四列导航 */
.pt-footer-links-row {
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pt-footer-nav-groups {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px 24px;
}

.pt-footer-nav-group h4 {
  color: var(--pt-brand-gold);
  font-weight: 700;
  font-size: 17px;
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.pt-footer-nav-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pt-footer-nav-group li {
  margin-bottom: 12px;
}

.pt-footer-nav-group a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  line-height: 1.5;
  transition: color 0.2s;
}

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

/* ② 左联系 + 右二维码 */
.pt-footer-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pt-footer-brand {
  flex: 1;
  min-width: 280px;
}

.pt-footer-school-name {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.pt-footer-school-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  background: var(--pt-brand-gold);
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='black'%3E%3Cpath d='M12 3L1 9l11 6 9-4.91V17h2V9M5 13.18v4L12 21l7-3.82v-4L12 17l-7-3.82z'/%3E%3C/svg%3E") center / contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='black'%3E%3Cpath d='M12 3L1 9l11 6 9-4.91V17h2V9M5 13.18v4L12 21l7-3.82v-4L12 17l-7-3.82z'/%3E%3C/svg%3E") center / contain no-repeat;
  background-color: var(--pt-brand-gold);
}

.pt-footer-school-name h3 {
  margin: 0;
  color: #fff;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.pt-footer-contacts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 32px;
  max-width: 720px;
}

.pt-footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0;
  line-height: 1.65;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
}

.pt-footer-contact-item em {
  font-style: normal;
  color: rgba(255, 255, 255, 0.55);
}

.pt-footer-contact-address {
  grid-column: 1 / -1;
}

.pt-footer-contact-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 3px;
  background-color: var(--pt-brand-gold);
  opacity: 0.95;
}

.pt-icon-phone {
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6.6 10.8c1.4 2.8 3.8 5.1 6.6 6.6l2.2-2.2c.3-.3.7-.4 1-.2 1.1.4 2.3.6 3.5.6.6 0 1 .4 1 1V20c0 .6-.4 1-1 1-9.4 0-17-7.6-17-17 0-.6.4-1 1-1h3.5c.6 0 1 .4 1 1 0 1.2.2 2.4.6 3.5.1.3 0 .7-.2 1L6.6 10.8z'/%3E%3C/svg%3E") center / contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6.6 10.8c1.4 2.8 3.8 5.1 6.6 6.6l2.2-2.2c.3-.3.7-.4 1-.2 1.1.4 2.3.6 3.5.6.6 0 1 .4 1 1V20c0 .6-.4 1-1 1-9.4 0-17-7.6-17-17 0-.6.4-1 1-1h3.5c.6 0 1 .4 1 1 0 1.2.2 2.4.6 3.5.1.3 0 .7-.2 1L6.6 10.8z'/%3E%3C/svg%3E") center / contain no-repeat;
}

.pt-icon-mail {
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 4H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2zm0 4l-8 5-8-5V6l8 5 8-5v2z'/%3E%3C/svg%3E") center / contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 4H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2zm0 4l-8 5-8-5V6l8 5 8-5v2z'/%3E%3C/svg%3E") center / contain no-repeat;
}

.pt-icon-location {
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2C8.13 2 5 5.13 5 9c0 5.25 7 13 7 13s7-7.75 7-13c0-3.87-3.13-7-7-7zm0 9.5c-1.38 0-2.5-1.12-2.5-2.5s1.12-2.5 2.5-2.5 2.5 1.12 2.5 2.5-1.12 2.5-2.5 2.5z'/%3E%3C/svg%3E") center / contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2C8.13 2 5 5.13 5 9c0 5.25 7 13 7 13s7-7.75 7-13c0-3.87-3.13-7-7-7zm0 9.5c-1.38 0-2.5-1.12-2.5-2.5s1.12-2.5 2.5-2.5 2.5 1.12 2.5 2.5-1.12 2.5-2.5 2.5z'/%3E%3C/svg%3E") center / contain no-repeat;
}

.pt-footer-qr-side {
  flex-shrink: 0;
  min-width: 0;
}

.pt-footer-qr-side.is-hidden {
  display: none;
}

.pt-footer-qr-inner {
  display: flex;
  align-items: center;
  gap: 20px;
}

.pt-footer-qr-meta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  text-align: left;
}

.pt-footer-qr-box {
  background: #fff;
  padding: 8px;
  flex-shrink: 0;
  border-radius: 4px;
}

.pt-footer-qr-box img {
  width: 100px;
  height: 100px;
  display: block;
  object-fit: contain;
}

.pt-footer-qr-tip {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--pt-brand-gold);
}

.pt-footer-social {
  display: flex;
  gap: 10px;
}

.pt-footer-social-btn {
  width: 36px;
  height: 36px;
  border: 0;
  padding: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  cursor: pointer;
  color: inherit;
  text-decoration: none;
}

.pt-footer-social-btn:hover {
  background: rgba(255, 255, 255, 0.16);
}

.pt-footer-social-btn span {
  display: block;
  width: 16px;
  height: 16px;
  background-color: rgba(255, 255, 255, 0.7);
}

.pt-icon-share {
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M18 16.08c-.76 0-1.44.3-1.96.77L8.91 12.7c.05-.23.09-.46.09-.7s-.04-.47-.09-.7l7.05-4.11c.54.5 1.25.81 2.04.81 1.66 0 3-1.34 3-3s-1.34-3-3-3-3 1.34-3 3c0 .24.04.47.09.7L8.04 9.81C7.5 9.31 6.79 9 6 9c-1.66 0-3 1.34-3 3s1.34 3 3 3c.79 0 1.5-.31 2.04-.81l7.12 4.16c-.05.21-.08.43-.08.65 0 1.61 1.31 2.92 2.92 2.92s2.92-1.31 2.92-2.92-1.31-2.92-2.92-2.92z'/%3E%3C/svg%3E") center / contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M18 16.08c-.76 0-1.44.3-1.96.77L8.91 12.7c.05-.23.09-.46.09-.7s-.04-.47-.09-.7l7.05-4.11c.54.5 1.25.81 2.04.81 1.66 0 3-1.34 3-3s-1.34-3-3-3-3 1.34-3 3c0 .24.04.47.09.7L8.04 9.81C7.5 9.31 6.79 9 6 9c-1.66 0-3 1.34-3 3s1.34 3 3 3c.79 0 1.5-.31 2.04-.81l7.12 4.16c-.05.21-.08.43-.08.65 0 1.61 1.31 2.92 2.92 2.92s2.92-1.31 2.92-2.92-1.31-2.92-2.92-2.92z'/%3E%3C/svg%3E") center / contain no-repeat;
}

.pt-icon-rss {
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6.18 15.64a2.18 2.18 0 010 4.36 2.18 2.18 0 010-4.36M4 4.44A15.56 15.56 0 0119.56 20h-2.83A12.73 12.73 0 004 7.27V4.44m0 5.66a9.9 9.9 0 019.9 9.9h-2.83A7.07 7.07 0 004 12.93v-2.83z'/%3E%3C/svg%3E") center / contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6.18 15.64a2.18 2.18 0 010 4.36 2.18 2.18 0 010-4.36M4 4.44A15.56 15.56 0 0119.56 20h-2.83A12.73 12.73 0 004 7.27V4.44m0 5.66a9.9 9.9 0 019.9 9.9h-2.83A7.07 7.07 0 004 12.93v-2.83z'/%3E%3C/svg%3E") center / contain no-repeat;
}

.pt-icon-mobile {
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 2h10a2 2 0 012 2v16a2 2 0 01-2 2H7a2 2 0 01-2-2V4a2 2 0 012-2zm5 18a1.25 1.25 0 100-2.5 1.25 1.25 0 000 2.5z'/%3E%3C/svg%3E") center / contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 2h10a2 2 0 012 2v16a2 2 0 01-2 2H7a2 2 0 01-2-2V4a2 2 0 012-2zm5 18a1.25 1.25 0 100-2.5 1.25 1.25 0 000 2.5z'/%3E%3C/svg%3E") center / contain no-repeat;
}

/* ③ 版权条 */
.pt-footer-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  padding: 20px 0 28px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.45);
}

.pt-footer-copy-main,
.pt-footer-copy-sub {
  margin: 0;
  line-height: 1.8;
}

.pt-footer-copy-sub {
  margin-top: 4px;
}

.pt-footer-bar-left a,
.pt-footer-bar-nav a {
  color: rgba(255, 255, 255, 0.55);
  transition: color 0.2s;
}

.pt-footer-bar-left a:hover,
.pt-footer-bar-nav a:hover {
  color: rgba(255, 255, 255, 0.85);
}

.pt-footer-bar-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: flex-end;
}

/* Legacy compliance footer (bottom nav, badges, ICP, etc.) */
.pt-footer-legacy {
  width: 100%;
  margin-top: 8px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
  color: #d1d5db;
  font-size: 13px;
  line-height: 1.6;
}

.pt-footer-legacy a {
  color: #e5e7eb;
}

.pt-footer-legacy a:hover {
  color: #fff;
  text-decoration: underline;
}

.pt-footer-legacy .foot_nav {
  height: auto;
  line-height: normal;
  margin-bottom: 16px;
}

.pt-footer-legacy .foot_nav_in {
  position: static;
  width: auto;
  max-width: 100%;
  margin: 0 auto;
  padding: 6px 12px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 0;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  top: auto;
  left: auto;
}

.pt-footer-legacy .foot_nav_in a {
  color: #fff;
  font-size: 13px;
  min-width: auto;
  height: auto;
  padding: 6px 12px;
  flex: 0 1 auto;
}

.pt-footer-legacy .footCnt {
  width: 100%;
  padding-bottom: 12px;
}

.pt-footer-legacy table.zzBar {
  margin: 0 auto;
  padding: 8px 0 0;
}

.pt-footer-legacy table.zzBar td {
  width: auto;
  padding: 4px 6px;
  text-align: center;
}

.pt-footer-legacy table.zzBar img {
  width: 114px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: #fff;
  border-radius: 2px;
}

.pt-footer-legacy .foot_inf {
  position: relative;
  padding: 16px 0 8px;
  color: #d1d5db;
  text-align: center;
}

.pt-footer-legacy .foot_inf .statement {
  max-width: 900px;
  margin: 0 auto 12px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  text-align: justify;
}

.pt-footer-legacy .foot_inf .info {
  display: inline-block;
  position: relative;
  max-width: 800px;
  min-width: 0;
  margin: 0 72px;
  color: #d1d5db;
}

.pt-footer-legacy .foot_inf .info .copyright {
  color: #fff;
  font-size: 15px;
  margin-bottom: 8px;
}

.pt-footer-legacy .foot_inf .kudos,
.pt-footer-legacy .foot_inf .card {
  width: 64px;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

.pt-footer-legacy .foot_inf .kudos {
  left: -72px;
  height: auto;
}

.pt-footer-legacy .foot_inf .card {
  right: -72px;
}

.pt-footer-legacy .foot_inf .rightSeriation.dzsy {
  position: relative !important;
  right: auto !important;
  left: auto !important;
  display: inline-block;
  margin-top: 12px;
}

.pt-footer-legacy .foot_inf .dzsy img {
  width: 68px;
}

/* Inner pages (二级) */
.pt-main.pt-inner {
  background: var(--pt-bg-page);
}

.pt-inner-banner {
  width: 100%;
  height: 280px;
  background-color: var(--pt-brand-banner-dark);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

.pt-inner-banner.is-default {
  background-image: linear-gradient(135deg, var(--pt-brand-blue) 0%, var(--pt-brand-gradient-mid) 50%, var(--pt-brand-gradient-end) 100%);
}

.pt-inner-layout {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  padding: 40px 16px 64px;
  box-sizing: border-box;
}

.pt-inner-sidebar {
  flex: 0 0 240px;
  width: 240px;
  background: #fff;
  border: 1px solid #e8eaed;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.pt-inner-sidebar-head {
  padding: 20px 16px;
  background: var(--pt-brand-blue);
  color: #fff;
}

.pt-inner-sidebar-head .en {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  opacity: 0.85;
  margin-bottom: 6px;
}

.pt-inner-sidebar-head .cn {
  display: block;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 10px;
}

.pt-inner-sidebar-rule {
  display: block;
  width: 36px;
  height: 3px;
  background: #fff;
  border-radius: 1px;
}

.pt-inner-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pt-inner-nav li {
  border-bottom: 1px solid #f0f1f3;
}

.pt-inner-nav li a {
  display: block;
  padding: 14px 16px;
  font-size: 14px;
  color: var(--pt-text);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.pt-inner-nav li a:hover {
  background: var(--pt-brand-hover-soft);
  color: var(--pt-brand-blue);
}

.pt-inner-nav li.is-active a,
.pt-inner-nav li.is-active a:hover {
  background: var(--pt-brand-blue);
  color: #fff;
  font-weight: 700;
  border-left: none;
  padding-left: 16px;
}

.pt-inner-content {
  flex: 1;
  min-width: 0;
  background: #fff;
  border: 1px solid #e8eaed;
  padding: 28px 32px 36px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.pt-inner-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pt-inner-news-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 24px;
  border: 1px solid #e8eaed;
  background: #fff;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.pt-inner-news-item--has-summary {
  align-items: flex-start;
}

.pt-inner-news-item--has-cover.pt-inner-news-item--no-summary {
  align-items: center;
}

.pt-inner-news-item--has-cover.pt-inner-news-item--has-summary {
  align-items: flex-start;
}

.pt-inner-news-thumb {
  flex-shrink: 0;
  width: 120px;
  height: 80px;
  overflow: hidden;
  border-radius: 4px;
  background: #eef1f5;
  display: block;
  text-decoration: none;
}

.pt-inner-news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.25s ease;
}

.pt-inner-news-item--has-cover:hover .pt-inner-news-thumb img {
  transform: scale(1.03);
}

.pt-inner-news-item:hover {
  background: var(--pt-brand-hover-bg);
  border-color: var(--pt-brand-hover-border);
}

.pt-inner-news-body {
  flex: 1;
  min-width: 0;
}

.pt-inner-news-body h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pt-inner-news-summary {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: #888;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-all;
}

.pt-inner-news-body h3 a {
  color: var(--pt-text);
  text-decoration: none;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pt-inner-news-item:hover .pt-inner-news-body h3 a {
  color: var(--pt-brand-blue);
}

.pt-inner-news-date {
  flex-shrink: 0;
  text-align: right;
  min-width: 76px;
}

.pt-inner-news-date .year {
  display: block;
  font-size: 12px;
  color: #999;
  margin-bottom: 6px;
}

.pt-inner-news-date .md {
  display: block;
  font-family: Impact, "Arial Narrow", sans-serif;
  font-size: 32px;
  font-weight: 400;
  color: #b0b0b0;
  line-height: 1;
  letter-spacing: 0.02em;
}

.pt-inner-news-item:hover .pt-inner-news-date .md {
  color: var(--pt-brand-blue);
}

.pt-inner-photo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.pt-inner-photo-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: #fafafa;
  border: 1px solid #eee;
  transition: box-shadow 0.2s, transform 0.2s;
}

.pt-inner-photo-card:hover {
  box-shadow: 0 4px 16px rgba(var(--pt-brand-shadow-rgb), 0.12);
  transform: translateY(-2px);
}

.pt-inner-photo-thumb {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #eee;
}

.pt-inner-photo-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pt-inner-photo-label {
  display: block;
  padding: 12px 10px;
  font-size: 14px;
  text-align: center;
  color: var(--pt-text);
}

.pt-inner-video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.pt-inner-video-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  padding: 20px 12px;
  background: #fafafa;
  border: 1px solid #eee;
  text-decoration: none;
  color: var(--pt-text);
  transition: box-shadow 0.2s;
}

.pt-inner-video-card:hover {
  box-shadow: 0 4px 12px rgba(var(--pt-brand-shadow-rgb), 0.1);
  color: var(--pt-brand-blue);
}

.pt-inner-video-card.has-thumb {
  padding: 0;
  min-height: 0;
}

.pt-inner-video-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #222;
}

.pt-inner-video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pt-inner-video-label {
  display: block;
  padding: 10px 12px;
  font-size: 14px;
  text-align: center;
}

.pt-inner-detail-title {
  margin: 0 0 16px;
  font-size: 26px;
  font-weight: 700;
  color: var(--pt-text);
  line-height: 1.45;
}

.pt-inner-detail-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid #eee;
  font-size: 14px;
  color: #999;
  line-height: 1.6;
}

.pt-inner-detail-meta .pt-meta-sep {
  color: #ccc;
}

.pt-inner-detail-meta .pt-meta-source {
  color: #576b95;
}

.pt-inner-detail-body {
  line-height: 1.85;
  font-size: 16px;
  color: #333;
}

.pt-inner-detail-body img {
  max-width: 100%;
  height: auto;
}

.pt-inner-detail-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid #eee;
}

.pt-inner-detail-pager-item {
  min-width: 0;
  padding: 16px 18px;
  border: 1px solid #e8eaed;
  border-radius: 4px;
  background: #fafbfc;
}

.pt-inner-detail-pager-label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  color: #999;
}

.pt-inner-detail-pager-title {
  display: block;
  font-size: 15px;
  line-height: 1.55;
  color: var(--pt-text);
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pt-inner-detail-pager-title:hover {
  color: var(--pt-brand-blue);
}

.pt-inner-detail-pager-title.is-empty {
  color: #bbb;
}

.pt-inner-detail-pager-next {
  text-align: right;
}

.pt-inner-detail-pager-next .pt-inner-detail-pager-label,
.pt-inner-detail-pager-next .pt-inner-detail-pager-title {
  text-align: right;
}

.pt-inner-photo-view-img img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.pt-inner-empty {
  text-align: center;
  padding: 48px 16px;
  color: var(--pt-text-muted);
  font-size: 14px;
}

.pt-inner-pager {
  margin-top: 32px;
  padding-top: 8px;
  text-align: center;
}

.pt-pager {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.pt-pager-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  background: #fff;
  color: #333;
  font-size: 14px;
  line-height: 1;
  text-decoration: none;
  box-sizing: border-box;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.pt-pager-btn:hover:not(.is-disabled):not(.is-current):not(.pt-pager-ellipsis) {
  border-color: var(--pt-brand-blue);
  color: var(--pt-brand-blue);
}

.pt-pager-btn.is-current {
  background: var(--pt-brand-blue);
  border-color: var(--pt-brand-blue);
  color: #fff;
  font-weight: 600;
}

.pt-pager-btn.is-disabled {
  background: #f5f5f5;
  border-color: #e8e8e8;
  color: #ccc;
  cursor: not-allowed;
}

.pt-pager-btn.pt-pager-ellipsis {
  border-color: #eee;
  color: #666;
  letter-spacing: 1px;
  cursor: default;
}

.pt-pager-btn.pt-pager-arrow {
  font-size: 12px;
  padding: 0 8px;
}

/* Legacy inner helpers (detail body) */
.pt-inner-page {
  width: 100%;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
  padding: 96px 16px 48px;
  min-height: 400px;
  box-sizing: border-box;
}

@media (min-width: 1400px) {
  body.pt-platform .pt-inner-page {
    padding-left: 0;
    padding-right: 0;
  }
}

.pt-page-title {
  margin: 0 0 24px;
  font-size: 28px;
  color: var(--pt-brand-red);
  border-bottom: 3px solid var(--pt-brand-blue);
  padding-bottom: 12px;
}

.pt-meta {
  margin: -12px 0 24px;
  font-size: 14px;
  color: var(--pt-text-muted);
}

.pt-muted {
  color: var(--pt-text-muted);
  font-size: 14px;
  line-height: 1.6;
}

.pt-article-list,
.pt-photo-categories,
.pt-video-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pt-article-list li {
  padding: 12px 0;
  border-bottom: 1px dashed #ddd;
}

.pt-article-list .time {
  color: var(--pt-text-muted);
  margin-right: 12px;
}

.pt-article-content {
  line-height: 1.8;
  font-size: 16px;
}

.pt-article-content img {
  max-width: 100%;
  height: auto;
}

.pt-photo-categories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pt-photo-categories li a {
  display: block;
  text-align: center;
}

.pt-photo-categories li img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 2px;
  margin-bottom: 8px;
  display: block;
}

.pt-photo-categories li span {
  font-size: 14px;
  font-weight: 500;
}

.pt-photo-view img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.pt-video-list li {
  padding: 12px 0;
  border-bottom: 1px dashed #ddd;
}

.pt-video-list li a {
  font-size: 16px;
  transition: color 0.3s;
}

.pt-video-list li a:hover {
  color: var(--pt-brand-red);
}

.pt-video-view a {
  display: inline-block;
  padding: 12px 24px;
  background: var(--pt-brand-red);
  color: #fff;
  border-radius: 2px;
  font-weight: 500;
  transition: opacity 0.3s;
}

.pt-video-view a:hover {
  opacity: 0.9;
}

.pt-no-data {
  color: var(--pt-text-muted);
  padding: 24px;
  text-align: center;
  background: #fafafa;
  border-radius: 6px;
}

/* Responsive */
@media (max-width: 992px) {
  .pt-col-4,
  .pt-col-5,
  .pt-col-6,
  .pt-col-7,
  .pt-col-8 {
    width: 100%;
  }

  .pt-news-cards,
  .pt-photo-grid {
    grid-template-columns: 1fr;
  }

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

  .pt-hero {
    min-height: 360px;
  }

  .pt-hero-cn {
    font-size: 48px;
  }

  .pt-hero-tagline {
    font-size: 18px;
    padding: 12px 24px;
  }

  .pt-nav-toggle {
    display: block;
  }

  .pt-nav-list {
    display: none;
    position: absolute;
    top: var(--pt-header-height);
    left: 0;
    right: 0;
    height: auto;
    max-height: calc(100vh - var(--pt-header-height));
    overflow-y: auto;
    background: var(--pt-brand-blue);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 0 16px;
    gap: 0;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
  }

  .pt-nav-list > li {
    flex-direction: column;
    align-items: stretch;
    height: auto;
  }

  .pt-nav-list li a {
    height: auto;
    padding: 12px 20px;
  }

  .pt-nav-list > li > a::before {
    left: 12px;
    right: auto;
    bottom: 10px;
    width: 24px;
  }

  .pt-nav-list > li > a.is-active::before,
  .pt-nav-list > li.is-active > a::before {
    transform: scaleX(1);
  }

  .pt-nav-sub {
    position: static;
    display: none;
    box-shadow: none;
    background: rgba(0, 0, 0, 0.12);
    min-width: 0;
    padding: 0;
  }

  .pt-nav-sub li a {
    padding: 10px 20px 10px 32px;
    color: #fff;
  }

  .pt-nav-sub li a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
  }

  .pt-nav-sub .pt-nav-sub li a {
    padding-left: 44px;
  }

  .pt-nav-list > li:hover > .pt-nav-sub {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  .pt-nav-list > li.is-sub-open > .pt-nav-sub {
    display: block;
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }

  .pt-nav.is-open .pt-nav-list {
    display: flex;
  }

  .pt-header-brand {
    flex: 1;
  }

  .pt-header-title {
    font-size: 18px;
    letter-spacing: 0.08em;
  }

  .pt-footer-main {
    flex-direction: column;
  }

  .pt-footer-qr-side {
    width: 100%;
  }

  .pt-footer-qr-inner {
    justify-content: flex-start;
  }

  .pt-footer-nav-groups {
    grid-template-columns: repeat(2, 1fr);
  }

  .pt-footer-contacts {
    grid-template-columns: 1fr;
  }

  .pt-footer-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .pt-footer-bar-nav {
    justify-content: flex-start;
  }

  .pt-recruitment-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .pt-recruitment-item .body {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
  }

  .pt-section {
    padding: 48px 0;
  }

  .pt-inner-layout {
    flex-direction: column;
    padding: 24px 16px 48px;
  }

  .pt-inner-sidebar {
    width: 100%;
    flex: none;
  }

  .pt-inner-content {
    padding: 20px 16px 28px;
  }

  .pt-inner-photo-grid,
  .pt-inner-video-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .pt-inner-banner {
    height: 200px;
  }

  .pt-inner-news-item {
    flex-direction: column;
    gap: 12px;
  }

  .pt-inner-news-item--has-cover .pt-inner-news-thumb {
    width: 120px;
    height: 80px;
  }

  .pt-inner-news-date {
    text-align: left;
    display: flex;
    align-items: baseline;
    gap: 8px;
  }

  .pt-inner-news-date .year {
    margin-bottom: 0;
  }

  .pt-inner-news-date .md {
    font-size: 20px;
  }

  .pt-inner-detail-pager {
    grid-template-columns: 1fr;
  }

  .pt-inner-detail-pager-next,
  .pt-inner-detail-pager-next .pt-inner-detail-pager-label,
  .pt-inner-detail-pager-next .pt-inner-detail-pager-title {
    text-align: left;
  }
}

@media (max-width: 576px) {
  .pt-footer-nav-groups {
    grid-template-columns: 1fr;
  }

  .pt-footer-legacy .foot_inf .info {
    margin: 0;
    padding: 0 8px;
  }

  .pt-footer-legacy .foot_inf .kudos,
  .pt-footer-legacy .foot_inf .card {
    position: static;
    transform: none;
    display: inline-block;
    margin: 8px 6px 0;
  }

  .pt-footer-legacy table.zzBar img {
    width: 96px;
    height: 40px;
  }

  .pt-photo-categories {
    grid-template-columns: 1fr;
  }

  .pt-inner-photo-grid,
  .pt-inner-video-grid {
    grid-template-columns: 1fr;
  }

  .pt-hero-nav {
    padding: 0 16px;
  }

  .pt-hero-cn {
    font-size: 36px;
    letter-spacing: 0.1em;
  }

  .pt-hero-en {
    font-size: 14px;
    letter-spacing: 0.2em;
  }

  .pt-header-title {
    font-size: 16px;
  }

  .pt-header-tagline {
    display: none;
  }

  .pt-honor-item {
    flex: 0 0 180px;
  }
}