:root {
  --navy: #06162f;
  --navy-2: #08264b;
  --blue: #1f6fff;
  --cyan: #17d6ff;
  --green: #41dfad;
  --orange: #ff8a3d;
  --ink: #102033;
  --muted: #64748b;
  --line: #e7edf7;
  --paper: #ffffff;
  --soft: #f4f8ff;
  --shadow: 0 18px 45px rgba(18, 46, 88, .12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.abec-article-page {
  margin: 0;
  min-width: 0;
  color: var(--ink);
  background: #f6f9fe;
  font: 14px/1.7 "PingFang SC", "Lantinghei SC", "Microsoft Yahei", "Hiragino Sans GB", "Microsoft Sans Serif", "WenQuanYi Micro Hei", sans-serif;
  letter-spacing: 0;
}

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

img {
  max-width: 100%;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(65, 223, 173, .95);
  outline-offset: 3px;
}

.abec-article-site {
  min-height: 100vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 12% 20%, rgba(31, 111, 255, .1), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #f7fbff 50%, #eef5ff 100%);
}

.article-topbar {
  position: relative;
  z-index: 30;
  color: #fff;
  background: linear-gradient(105deg, rgba(6, 22, 47, .98), rgba(8, 38, 75, .96));
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  box-shadow: 0 16px 40px rgba(2, 12, 28, .22);
}

.article-topbar-inner {
  width: calc(100% - 40px);
  max-width: 1860px;
  min-height: 84px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
}

.article-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 270px;
}

.article-brand-logo {
  width: 108px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.article-brand-logo img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, .28));
}

.article-brand-sub {
  margin-left: 10px;
  padding-left: 12px;
  border-left: 1px solid rgba(255, 255, 255, .35);
  color: rgba(255, 255, 255, .9);
  font-size: 13px;
  line-height: 1.45;
  white-space: nowrap;
}

.article-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex: 1;
  font-size: 16px;
  font-weight: 800;
}

.article-nav a,
.article-nav-dropdown-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 84px;
  padding: 0;
  border: 0;
  color: rgba(255, 255, 255, .92);
  background: transparent;
  cursor: pointer;
  white-space: nowrap;
  font: inherit;
  font-weight: inherit;
}

.article-nav a:hover,
.article-nav a:focus-visible,
.article-nav a.is-active,
.article-nav-dropdown:hover .article-nav-dropdown-toggle,
.article-nav-dropdown:focus-within .article-nav-dropdown-toggle,
.article-nav-dropdown.is-open .article-nav-dropdown-toggle {
  color: #fff;
}

.article-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: 34px;
  height: 3px;
  border-radius: 99px;
  background: var(--green);
  transform: translateX(-50%);
  box-shadow: 0 0 12px rgba(65, 223, 173, .8);
}

.article-nav-dropdown {
  position: relative;
  display: flex;
}

.article-nav-dropdown-toggle {
  gap: 8px;
}

.article-nav-dropdown-toggle::after {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: -4px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform .2s ease;
  opacity: .82;
}

.article-nav-dropdown:hover .article-nav-dropdown-toggle::after,
.article-nav-dropdown:focus-within .article-nav-dropdown-toggle::after,
.article-nav-dropdown.is-open .article-nav-dropdown-toggle::after {
  transform: rotate(225deg) translate(-2px, -2px);
}

.article-nav-dropdown-menu {
  position: absolute;
  top: calc(100% - 4px);
  left: 50%;
  min-width: 156px;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 10px;
  background: rgba(5, 16, 42, .96);
  box-shadow: 0 16px 36px rgba(0, 0, 0, .24);
  transform: translate(-50%, 10px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}

.article-nav-dropdown-menu a {
  min-height: 0;
  display: block;
  padding: 9px 14px;
  border-radius: 6px;
  color: rgba(255, 255, 255, .82);
  font-size: 14px;
  font-weight: 700;
}

.article-nav-dropdown-menu a:hover,
.article-nav-dropdown-menu a:focus-visible {
  color: #06162f;
  background: var(--green);
}

.article-nav-dropdown:hover .article-nav-dropdown-menu,
.article-nav-dropdown:focus-within .article-nav-dropdown-menu,
.article-nav-dropdown.is-open .article-nav-dropdown-menu {
  transform: translate(-50%, 0);
  opacity: 1;
  visibility: visible;
}

.article-top-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.article-register-btn {
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 6px;
  color: #071936;
  background: var(--green);
  font-weight: 900;
  box-shadow: 0 10px 28px rgba(65, 223, 173, .22);
  white-space: nowrap;
}

.article-register-btn:hover {
  transform: translateY(-1px);
}

.article-lang {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, .32);
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, .9);
  font-weight: 900;
}

.article-menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 6px;
  background: rgba(255, 255, 255, .08);
  cursor: pointer;
}

.article-menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: #fff;
  transition: transform .2s ease, opacity .2s ease;
}

.article-hero {
  position: relative;
  color: #fff;
  background:
    radial-gradient(circle at 18% 0%, rgba(23, 214, 255, .16), transparent 32%),
    radial-gradient(circle at 86% 18%, rgba(65, 223, 173, .12), transparent 30%),
    linear-gradient(135deg, #06162f 0%, #0a2346 52%, #29435f 100%);
}

.article-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(65, 223, 173, .7), transparent);
}

.article-hero-inner {
  position: relative;
  z-index: 1;
  width: calc(100% - 40px);
  max-width: 1180px;
  margin: 0 auto;
  padding: 58px 0 64px;
}

.article-breadcrumb {
  margin-bottom: 24px;
  color: rgba(255, 255, 255, .72);
  font-size: 13px;
}

.article-breadcrumb a {
  color: rgba(255, 255, 255, .8);
}

.article-breadcrumb a:hover {
  color: #fff;
}

.article-breadcrumb ul,
.article-breadcrumb ol,
.article-breadcrumb .dreamer-location {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
}

.article-breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
}

.article-breadcrumb li::after {
  content: "/";
  color: rgba(255, 255, 255, .42);
}

.article-breadcrumb li:last-child::after {
  content: "";
}

.article-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding: 6px 12px;
  border: 1px solid rgba(65, 223, 173, .4);
  border-radius: 4px;
  color: var(--green);
  background: rgba(65, 223, 173, .08);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
}

.article-title {
  max-width: 980px;
  margin: 0;
  color: #fff;
  font-size: 42px;
  line-height: 1.25;
  font-weight: 900;
  letter-spacing: 0;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  margin-top: 24px;
  color: rgba(255, 255, 255, .75);
  font-size: 14px;
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.article-meta i {
  color: var(--green);
}

.article-main-wrap {
  width: calc(100% - 40px);
  max-width: 1180px;
  margin: 0 auto;
  padding: 44px 0 64px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 28px;
  align-items: start;
}

.article-shell,
.article-widget {
  border: 1px solid rgba(231, 237, 247, .9);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .94);
  box-shadow: var(--shadow);
}

.article-shell {
  padding: 42px 50px 46px;
}

.article-summary,
.article-ai-summary {
  position: relative;
  margin-bottom: 30px;
  padding: 22px 24px;
  border-radius: var(--radius);
  border: 1px solid rgba(31, 111, 255, .16);
  background: linear-gradient(135deg, #f5fbff, #ffffff 58%, #f5fff9);
}

.article-summary::before,
.article-ai-summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 4px;
  border-radius: 0 99px 99px 0;
  background: var(--green);
}

.article-summary-label {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.article-summary p,
.article-ai-summary-text {
  margin: 0;
  color: #334155;
  font-size: 15px;
  line-height: 1.85;
}

.article-ai-summary {
  display: none;
}

.article-ai-summary.is-visible {
  display: block;
}

.article-ai-summary-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--blue);
  font-weight: 900;
}

.article-ai-icon {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #06162f;
  background: var(--green);
}

.article-ai-disclaimer {
  margin: 12px 0 0;
  color: #7a8ba0;
  font-size: 12px;
}

.article-content {
  color: #1e293b;
  font-size: 17px;
  line-height: 2;
}

.article-content p {
  margin: 0 0 20px;
  text-align: justify;
}

.article-content h2,
.article-content h3,
.article-content h4 {
  margin: 34px 0 16px;
  color: #0f2f58;
  line-height: 1.35;
}

.article-content h2 {
  padding-left: 14px;
  border-left: 4px solid var(--green);
  font-size: 24px;
}

.article-content h3 {
  font-size: 21px;
}

.article-content img {
  display: block;
  max-width: 100% !important;
  height: auto !important;
  margin: 28px auto;
  border-radius: var(--radius);
  box-shadow: 0 14px 34px rgba(15, 47, 88, .14);
}

.article-content blockquote {
  margin: 28px 0;
  padding: 18px 22px;
  border-left: 4px solid var(--cyan);
  color: #334155;
  background: #f5faff;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
}

.article-content th,
.article-content td {
  padding: 10px 12px;
  border: 1px solid var(--line);
}

.article-content th {
  background: #f4f8ff;
}

.article-keywords {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 34px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.article-keywords span {
  font-weight: 900;
  color: #0f2f58;
}

.article-keywords em {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 4px;
  color: #0f2f58;
  background: #eef6ff;
  font-style: normal;
}

.article-share-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  padding: 18px;
  border-radius: var(--radius);
  background: #f7fbff;
}

.article-share-panel > span {
  margin-right: auto;
  color: #0f2f58;
  font-weight: 900;
}

.article-share-btn {
  height: 38px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  border: 1px solid #d7e5f4;
  border-radius: 4px;
  color: #0f2f58;
  background: #fff;
  cursor: pointer;
}

.article-share-btn:hover,
.article-share-btn.is-done {
  border-color: var(--green);
  color: #06162f;
  background: #effff9;
}

.article-prevnext-wrap {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.article-prevnext-wrap ul,
.article-prevnext-wrap .dreamer-prevnext {
  margin: 0;
  padding: 0;
  list-style: none;
}

.article-prevnext-wrap li {
  padding: 10px 0;
  color: var(--muted);
}

.article-prevnext-wrap a {
  color: var(--blue);
}

.article-prevnext-wrap a:hover {
  color: #0f2f58;
  text-decoration: underline;
}

.article-note {
  margin-top: 24px;
  padding: 18px 20px;
  border-radius: var(--radius);
  color: #64748b;
  background: #f8fafc;
  font-size: 13px;
  line-height: 1.8;
}

.article-aside {
  position: sticky;
  top: 18px;
  display: grid;
  gap: 18px;
}

.article-widget {
  padding: 22px;
}

.article-widget h2,
.article-widget h3,
.article-widget p {
  margin: 0;
}

.article-widget-eyebrow {
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
}

.article-widget-cta {
  color: #fff;
  border-color: rgba(65, 223, 173, .28);
  background:
    linear-gradient(145deg, rgba(6, 22, 47, .98), rgba(8, 38, 75, .95)),
    radial-gradient(circle at top right, rgba(23, 214, 255, .22), transparent 32%);
}

.article-widget-cta h2 {
  margin-top: 8px;
  color: #fff;
  font-size: 21px;
  line-height: 1.35;
}

.article-widget-cta p {
  margin-top: 12px;
  color: rgba(255, 255, 255, .76);
}

.article-widget-cta a {
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 18px;
  padding: 0 16px;
  border-radius: 4px;
  color: #06162f;
  background: var(--green);
  font-weight: 900;
}

.article-widget-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.article-widget-head h2 {
  color: #0f2f58;
  font-size: 18px;
}

.article-widget-head a {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.article-related-list {
  display: grid;
  gap: 12px;
}

.article-related-item {
  display: block;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.article-related-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.article-related-item strong {
  display: block;
  color: #1e293b;
  font-size: 14px;
  line-height: 1.55;
  font-weight: 800;
}

.article-related-item span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.article-related-item:hover strong {
  color: var(--blue);
}

.article-guide-list {
  display: grid;
  gap: 10px;
}

.article-guide-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: #0f2f58;
  background: #f8fbff;
  font-weight: 800;
}

.article-guide-list a::after {
  content: ">";
  color: var(--green);
}

.article-guide-list a:hover {
  border-color: var(--green);
  background: #effff9;
}

.article-footer {
  color: rgba(255, 255, 255, .72);
  background: #050f22;
}

.article-footer-inner {
  width: calc(100% - 40px);
  max-width: 1860px;
  margin: 0 auto;
  padding: 54px 0 42px;
  display: grid;
  grid-template-columns: 1.25fr .7fr .7fr 1.25fr .7fr;
  gap: 34px;
}

.article-footer .article-brand {
  min-width: 0;
}

.article-footer h3 {
  margin: 0 0 16px;
  color: #fff;
  font-size: 16px;
}

.article-footer a,
.article-footer p {
  display: block;
  margin: 0 0 10px;
  color: rgba(255, 255, 255, .68);
  font-size: 14px;
}

.article-footer a:hover {
  color: var(--green);
}

.article-footer-brand .article-brand {
  margin-bottom: 14px;
}

.article-qr {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 4px;
}

.article-copyright {
  padding: 18px 20px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  color: rgba(255, 255, 255, .54);
  text-align: center;
  font-size: 13px;
  line-height: 1.7;
}

@media (max-width: 1320px) {
  .article-topbar-inner {
    gap: 18px;
  }

  .article-nav {
    gap: 18px;
    font-size: 14px;
  }
}

@media (max-width: 1100px) {
  .article-menu-toggle {
    display: inline-block;
  }

  .article-lang,
  .article-brand-sub {
    display: none;
  }

  .article-topbar-inner {
    min-height: 72px;
  }

  .article-brand {
    min-width: 0;
  }

  .article-brand-logo {
    width: 96px;
  }

  .article-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 20px;
    background: rgba(5, 16, 42, .98);
    box-shadow: 0 18px 34px rgba(0, 0, 0, .22);
  }

  .article-topbar.is-menu-open .article-nav {
    display: flex;
  }

  .article-nav a,
  .article-nav-dropdown-toggle {
    min-height: 46px;
    width: 100%;
    justify-content: flex-start;
  }

  .article-nav a.is-active::after {
    left: 0;
    bottom: 8px;
    transform: none;
  }

  .article-nav-dropdown {
    display: block;
  }

  .article-nav-dropdown-menu {
    position: static;
    min-width: 0;
    display: none;
    padding: 6px;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    background: rgba(255, 255, 255, .07);
  }

  .article-nav-dropdown.is-open .article-nav-dropdown-menu {
    display: block;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-aside {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-widget-cta {
    grid-column: 1 / -1;
  }

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

@media (max-width: 720px) {
  .article-topbar-inner,
  .article-hero-inner,
  .article-main-wrap,
  .article-footer-inner {
    width: calc(100% - 28px);
  }

  .article-register-btn {
    display: none;
  }

  .article-hero-inner {
    padding: 38px 0 44px;
  }

  .article-title {
    font-size: 28px;
    line-height: 1.34;
  }

  .article-meta {
    flex-direction: column;
    gap: 8px;
  }

  .article-main-wrap {
    padding: 24px 0 44px;
  }

  .article-shell {
    padding: 24px 18px 28px;
  }

  .article-content {
    font-size: 16px;
    line-height: 1.9;
  }

  .article-content p {
    text-align: left;
  }

  .article-share-panel {
    align-items: stretch;
  }

  .article-share-panel > span {
    width: 100%;
  }

  .article-share-btn {
    flex: 1 1 calc(33.333% - 8px);
    justify-content: center;
    padding: 0 10px;
  }

  .article-aside,
  .article-footer-inner {
    grid-template-columns: 1fr;
  }

  .article-footer-inner {
    padding: 40px 0 30px;
  }
}