/* CSS Reset */

:root {
  --color-main: #0060ff;
  --color-teal-600: #0060ff;
  --color-teal-500: #0a9aa3;
  --color-teal-100: #e3f3ff;
  --color-gray-900: #191919;
  --color-gray-800: #252525;
  --color-gray-700: #333333;
  --color-gray-600: #4b5563;
  --color-gray-500: #6b7280;
  --color-gray-400: #9ca3af;
  --color-gray-300: #d1d5db;
  --color-gray-200: #e5e7eb;
  --color-gray-100: #f3f4f6;
  --color-white: #ffffff;
  --color-hero-a: #e8f5f4;
  --color-hero-b: #b8e6e1;
  --radius-sm: 6px;
  --radius-md: 8px;
  --shadow-sm: 0 0 7.6px rgba(128, 141, 139, 0.21);
  --shadow-md: 0 0 18px rgba(112, 135, 132, 0.27);
  --shadow-lg: 3px 0 32px rgba(226, 226, 226, 0.33);
  --container-max: 1300px;
}
svg{
  display: inline-block !important;
}
.color-main {
  color: var(--color-main) !important;
}
.border-1{
/* Group 15716 */

  border: 1px solid #dadce0;

}
.bg-main {
  background-color: var(--color-main) !important;
}
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0px auto 0px;
  padding: 0 0;
}
.page-container {
  /* margin-top: 100px !important; */
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  word-break: break-all;
  word-break: break-word;
  white-space: normal;
  word-wrap: break-word;
}

html {
  font-size: 16px;
  line-height: 1.6;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  color: #333;
  background-color: #fff;
}

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

ul,
ol {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

.full-card {
  width: 100%;
  padding: 50px 0;
  margin: 0 auto;
}
.bg-header {
  background: linear-gradient(
    0deg,
    rgba(195, 219, 255, 0) 3.85%,
    rgba(195, 219, 255, 0.5) 46.18%,
    #c3dbff 76.96%
  );
}
.text-clamp-1 {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word !important;
  white-space: normal !important;
  word-wrap: break-word !important;
}

.text-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word !important;
  white-space: normal !important;
  word-wrap: break-word !important;
}
.text-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word !important;
  white-space: normal !important;
  word-wrap: break-word !important;
}
.empty-title {
  font-family: "HarmonyOS Sans";
  font-style: normal;
  font-weight: 700;
  font-size: 16px;
  line-height: 19px;
  color: #b1b1b1;
}

.title {
  /* Categories */

  font-family: "HarmonyOS Sans";
  font-style: normal;
  font-weight: 700;
  font-size: 46px;
  line-height: 22px;
  /* or 48% */
  color: #252525;
  text-align: center;
  margin-top: 50px;
  margin-bottom: 20px;
}

.title_line {
  /* Recommended Reading */
  font-family: "HarmonyOS Sans";
  font-style: normal;
  font-weight: 700;
  font-size: 30px;
  line-height: 32px;
  color: #191919;
  /* border-left: 6px solid var(--color-main); */
  /* padding-left: 10px; */
  margin-top: 50px;
  margin-bottom: 35px;
  width: 100%;
}

.title_hash {
  /* Search here */
 background-color:#EFF5FF;
  font-family: "HarmonyOS Sans";
  font-style: normal;
  font-weight: 700;
  font-size: 16px;
  line-height: 19px;
  color: #191919;
  padding: 16px 22px;
}
#more_tool{
box-sizing: border-box;
background: #FFFFFF;
border: 1px solid #E8E8E8;
border-radius: 10px;
}
#tableOfContents{
  padding-left:40px;
  padding-right: 16px;
  padding-bottom: 16px;
  padding-top: 0px;
}
#tableOfContents li{
  list-style: decimal;
}
.search-title {
font-family: 'HarmonyOS Sans';
font-style: normal;
font-weight: 400;
font-size: 18px;
line-height: 48px;
margin: 20px 0;
/* or 267% */
display: flex;
align-items: center;
color: #333333;
}

.footer {
  background-color: #101c2c;
  color: #ccc;
  font-size: 14px;
}

.footer__container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 48px 24px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 32px;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.footer__logo {
  height: 40px;
  margin-bottom: 18px;
}

.footer__social-title {
  color: #ffffff;
  font-family: "HarmonyOS Sans";
  font-style: normal;
  font-weight: 700;
  font-size: 16px;
  line-height: 22px;
  margin-bottom: 18px;
}

.footer__social-list {
  display: flex;
  gap: 8px;
}

.footer__social-item {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #374151;
  border-radius: 4px;
  transition: background 0.2s;
  color: #fff;
}

.footer__social-item:hover {
  background: #4b5563;
}

.footer__column {
}

.footer__title {
  margin-bottom: 32px;
  font-family: "HarmonyOS Sans";
  font-style: normal;
  font-weight: 700;
  font-size: 16px;
  line-height: 22px;
  color: #ffffff;
}

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

.footer__link {
  display: block;
  margin-bottom: 12px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
}

.footer__link:hover {
  color: var(--color-main);
  text-decoration: underline;
}

.footer__bottom {
  border-top: 1px solid #1f2937;
  text-align: center;
  padding: 16px 24px;
  margin-top: 24px;
}

.footer__copyright {
  color: #888;
  font-size: 13px;
}
/* taag */

.topic-pills {
  padding: 8px 0;
}

.topic-pills__list {
  display: flex;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.topic-pills__item {
  flex: 0 0 auto;
}

.topic-pills__pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 22px;
  border-radius: 9999px;
  border: 2px solid #0e9898;
  background: #fff;
  color: #0e9898;
  text-decoration: none;
  font: 500 14px/38px ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    PingFang SC, Microsoft YaHei;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.topic-pills__pill:hover {
  border-color: var(--color-main);
  background: var(--color-main);
  color: #fff;
}

.topic-pills__pill--active {
  background: #0e9898;
  color: #fff;
  border-color: #0e9898;
}

.topic-pills__pill--active:hover {
  background: var(--color-main);
  border-color: var(--color-main);
}

.topic-pills__label {
  max-width: 160px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card_hover_category {
  display: inline-block;
  font-family: "HarmonyOS Sans";
  font-style: normal;
  font-weight: 400;
  font-size: 12px;
  line-height: 14px;
  text-align: center;
  color: #191919;
  background: #f0f0f0;
  border-radius: 51px;
  padding: 4px 12px;
  cursor: pointer;
  border: 1px solid transparent;
  
}
.card_hover_category:hover {
  /* border-color: #0060ff; */
  color: #0060ff;
}

.aiv-pcb-videos__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  margin-top: 50px;

}

.aiv-pcb-videos__title {
  font-size: 30px;
  font-weight: 600;
  color: #1a202c;
  margin: 0;
  position: relative;
  padding-bottom: 12px;
}

.aiv-pcb-videos__view-all {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 500;
  color: #0066ff;
  text-decoration: none;
  border: 1px solid #0066ff;
  border-radius: 20px;
  transition: all 0.3s ease;
}

.aiv-pcb-videos__view-all:hover {
  background-color: #0066ff;
  color: #ffffff;
}

.aiv-pcb-videos__arrow {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.aiv-pcb-videos__view-all:hover .aiv-pcb-videos__arrow {
  transform: translateX(4px);
}
/* button tag */

/* View by Tags Section */
.aiv-tags {
  background-color: #ffffff;
  padding: 30px 0;
}

.aiv-tags__container {
  margin: 0 auto;
  box-sizing: border-box;
  background: #ffffff;
  /* 描边色 */
  border: 1px solid #e8e8e8;
  border-radius: 10px;
  padding: 50px 50px;
}
.aiv-tags__title {
  font-size: 30px;
  font-weight: 600;
  color: #1a202c;
  margin: 0 0 24px 0;
}

.aiv-tags__list {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.aiv-tags__tag {
  padding: 8px 24px;
  font-size: 14px;
  font-weight: 500;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  outline: none;
}

.aiv-tags__tag:hover {
  background: #0060ff !important;
  color: #fff !important;
}
.aiv-tags__tag--mini{
  padding: 2px 12px;
  border-radius: 10px ;
  background-color: #f0f0f0;
}
.aiv-tags__tag:nth-child(4n + 1) {
  background: #dfebff;
}
.aiv-tags__tag:nth-child(4n + 2) {
  background: #fff1c2;
}
.aiv-tags__tag:nth-child(4n + 3) {
  background: #f8d7ff;
}
.aiv-tags__tag:nth-child(4n + 4) {
  background: #cefbbe;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .aiv-tags {
    padding: 40px 0;
  }

  .aiv-tags__title {
    font-size: 20px;
  }

  .aiv-tags__list {
    gap: 8px;
  }

  .aiv-tags__tag {
    padding: 6px 16px;
    font-size: 13px;
  }
}

/* navbar */
/* Fixed Navigation Bar */
.aiv-navbar {
  position: relative;
position: relative;
  /* position: fixed; */
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  background-color: #ffffff;
  border-bottom: 1px solid #e8ecef;
}

.aiv-navbar__container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 0;
  /* display: flex; */
  /* align-items: center; */
  /* justify-content: space-between; */
  gap: 40px;
  height: 76px;
}

.aiv-navbar__menu {
  display: flex;
  align-items: center;
  gap: 48px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
}

.aiv-navbar__item {
  margin: 0;
  padding: 0;
  position: relative;
}

.aiv-navbar__link {
  font-size: 15px;
  font-weight: 500;
  color: #4a5568;
  text-decoration: none;
  padding:27px 0 26px 0;
  position: relative;
  transition: all 0.3s ease;
  display: inline-block;
}

.aiv-navbar__link:hover {
  color: #0066ff;
}

/* 有下拉菜单的父项样式 - 使用 ::before 避免与 --active 的 ::after 冲突 */
.aiv-navbar__link.m {
  padding-right: 20px;
}

.aiv-navbar__link.m::before {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform 0.3s ease;
}

.aiv-navbar__item:hover > .aiv-navbar__link.m::before {
  transform: translateY(-50%) rotate(180deg);
}

.aiv-navbar__link--active {
  color: #0066ff;
}

.aiv-navbar__link--active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: #0066ff;
}

/* 子菜单下拉样式 */
.aiv-navbar__item > ul {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  width: max-content;
  background-color: #ffffff;
  border: 1px solid #e8ecef;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  list-style: none;
  margin: 0;
  padding: 8px 0;
  z-index: 1000;
  white-space: nowrap;
}

/* hover 时显示子菜单 */
.aiv-navbar__item:hover > ul {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* 子菜单项样式 */
.aiv-navbar__item > ul > li {
  margin: 0;
  padding: 0;
}

.aiv-navbar__item > ul > li > a {
  display: block;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 400;
  color: #4a5568;
  text-decoration: none;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.aiv-navbar__item > ul > li > a:hover {
  color: #0066ff;
  background-color: #f0f7ff;
}

/* 子菜单项激活状态 - 只高亮文字 */
.aiv-navbar__item > ul > li > a.aiv-navbar__submenu-active {
  color: #0066ff;
  font-weight: 600;
  background-color: transparent;
}

.aiv-navbar__item > ul > li > a.aiv-navbar__submenu-active:hover {
  color: #0066ff;
  background-color: #f0f7ff;
}

.aiv-navbar__item > ul > li > a span {
  display: inline;
  white-space: nowrap;
}

.aiv-navbar__actions {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-shrink: 0;
  position: absolute;
  right: 80px;
  top: 20px;
  z-index: 10;
}

.aiv-navbar__search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.aiv-navbar__search-icon {
  position: absolute;
  left: 16px;
  color: #a0aec0;
  pointer-events: none;
  z-index: 1;
}

.aiv-navbar__search-input {
  width: 270px;
  height: 38px;
  padding: 9px 16px 9px 42px;
  font-size: 14px;
  color: #1a202c;
  /* background-color: #f8fafc; */
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  outline: none;
  transition: all 0.3s ease;
  border-color: #0066ff;

}

.aiv-navbar__search-input::placeholder {
  color: #a0aec0;
  font-size: 14px;
}

.aiv-navbar__search-input:hover {
  border-color: #0066ff;

}

.aiv-navbar__search-input:focus {
  background-color: #ffffff;
  border-color: #0066ff;
}

.aiv-navbar__search-wrapper:has(.aiv-navbar__search-input:focus)
  .aiv-navbar__search-icon,
.aiv-navbar__search-wrapper:hover .aiv-navbar__search-icon {
  color: #0066ff;
}

.aiv-navbar__language {
  position: relative;
  z-index: 100;
}

.aiv-navbar__language-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  color: #0066ff;
  background-color: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: 4px;
}

.aiv-navbar__language-btn:hover {
  background-color: #f5f7fa;
}

.aiv-navbar__language-btn svg {
  color: #0066ff;
}

.aiv-navbar__language-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 120px;
  background-color: #ffffff;
  border: 1px solid #e8ecef;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  opacity: 0;
  padding: 10px 5px;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.3s ease;
  z-index: 1000;
}

.aiv-navbar__language:hover .aiv-navbar__language-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.aiv-navbar__language-option {
    background-color: #ffffff;
  display: block;
  padding: 0px 0px;
  font-size: 14px;
  padding: 10px 20px;
  color: #4a5568;
  text-decoration: none;
  transition: all 0.3s ease;
}

.aiv-navbar__language-option:first-child {
  border-radius: 4px 4px 0 0;
}

.aiv-navbar__language-option:last-child {
  border-radius: 0 0 4px 4px;
}

.aiv-navbar__language-option:hover {
  color: #0066ff;
  background-color: #f0f7ff;
}

.aiv-navbar__language-option--active {
  color: #0066ff;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .aiv-navbar__menu {
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .aiv-navbar__container {
    padding: 0 16px;
    height: 56px;
    gap: 16px;
  }

  .aiv-navbar__menu {
    gap: 20px;
  }

  .aiv-navbar__link {
    font-size: 14px;
    padding: 18px 0;
  }

  .aiv-navbar__search-input {
    width: 120px;
    font-size: 13px;
  }

  .aiv-navbar__language-btn {
    padding: 6px 10px;
    font-size: 13px;
  }
}

.aiv-card__link {
    font-size: 14px;
    font-weight: 500;
    color: #939393;
    transition: color 0.2s ease, transform 0.2s ease;
  }
  
  .aiv-card__link--primary {
    color: var(--aiv-color-accent);
    position: relative;
    padding-right: 18px;
  }
  
  .aiv-card__link--primary::after {
    content: "\2192";
    position: absolute;
    top: 60%;
    right: 0;
    transform: translateY(-52%);
    font-size: 14px;
  }
  
  .aiv-card__link:hover {
    color: var(--aiv-color-accent);
    text-decoration: dashed;
  }
  .aiv-card__link--primary:hover {
    text-decoration: underline;
  }
  
  /* Hidden utility class */
  .hidden {
    display: none !important;
  }
  
  /* Rotate utility class for caret icons */
  .rotate-180 {
    transform: rotate(180deg);
  }
  
/* FAQ Section */

.faq-item {
  border-radius: 12px;

  margin-bottom: 20px;

  overflow: hidden;

  /* transition: all 0.3s ease; */

  /*    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);*/
}

.faq-item.active {
  /* border-color:#0060FF; */

  box-shadow: 0 4px 16px rgba(6, 59, 233, 0.15);

  /* border:2px solid #0060FF; */
}

.faq-item:hover {
  /* border-color:#0060FF; */

  /* border:2px solid #0060FF; */

  box-shadow: 0 4px 16px rgba(6, 59, 233, 0.15);
}

.faq-question {
  font-size: 18px;

  font-weight: 500;

  color: #000000;

  line-height: 1.4;

  padding: 25px 30px;

  margin: 0;

  cursor: pointer;

  background: white;

  border: none;

  width: 100%;

  text-align: left;

  position: relative;

  transition: all 0.3s ease;
}

.faq-question:hover {
  /* background: #f8fcfc; */

  color: #0060ff;
}

.faq-item.active .faq-question {
  /* background: #f8fcfc; */

  color: #0060ff;
}

.faq-question:after {
  content: "";

  background-image: url("/aivon/static/img/activity/invite/arrow_down.png");

  width: 24px;

  height: 24px;

  position: absolute;

  right: 30px;

  top: 50%;

  transform: translateY(-50%) rotate(0deg);

  font-size: 16px;

  color: #0060ff;

  transition: transform 0.3s ease;
}

.faq-item.active .faq-question:after {
  transform: translateY(-50%) rotate(180deg);
}

.faq-answer {
  background: white;

  padding: 0 30px;
  font-size: 14px;
  max-height: 0;

  overflow: hidden;

  transition: max-height 0.4s ease, padding 0.4s ease;

  opacity: 0;
}

.faq-item.active .faq-answer {
  max-height: 600px;

  padding: 25px 30px 30px;

  opacity: 1;

  transition: max-height 0.4s ease, padding 0.4s ease, opacity 0.2s ease 0.1s;
}

.faq-answer-content {
  color: #5a6c70;

  font-size: 16px;

  line-height: 1.6;

  margin: 0;
}

.faq-answer-content p {
  margin-bottom: 15px;
}

.faq-answer-content p:last-child {
  margin-bottom: 0;
}

.faq-section {
  padding: 0px 0;

  background: #fff;
}

.faq-container {
  max-width: 1300px;

  margin: 0 auto;

  padding: 0 20px;
}

.faq-title {
  text-align: center;

  font-size: 32px;

  font-weight: 700;

  margin-bottom: 40px;

  color: #2b2b2b;
}

.faq-item {
  border-radius: 6px;

  margin-bottom: 16px;

  overflow: hidden;
}

.faq-item-border {
  border: 1px solid #d9d9d9;
}

.faq-question {
  background: #fff;

  padding: 20px 30px;

  cursor: pointer;

  display: flex;

  justify-content: space-between;

  align-items: center;

  font-size: 16px;

  color: #262c2d;

  transition: background 0.3s;
}

.faq-question:hover {
  /* background: #f8f9fa; */
}

.faq-arrow {
  width: 24px;

  height: 24px;

  transform: rotate(0deg);

  transition: transform 0.3s;
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 30px;

  max-height: 0;

  overflow: hidden;

  transition: max-height 0.3s, padding 0.3s;

  background: #f8f9fa;
}

.faq-item.active .faq-answer {
  font-size: 16px;
  padding: 20px 30px;
}