@import "main-base.css";

:root {
  --brand-deep: #1f3246;
  --brand-mid: #3e5e7e;
  --brand-soft: #eff4f8;
  --card-bg: #ffffff;
  --page-bg: #f5f7fa;
  --text-main: #1d2a36;
  --text-muted: #5a6876;
  --line-soft: #e1e8ef;
  --chip-bg: #f4f8fc;
  --chip-line: #dbe6f0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: linear-gradient(180deg, #fbfcfe 0%, var(--page-bg) 100%);
  color: var(--text-main);
  font-family: "Avenir Next", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.lang-zh,
.lang-en {
  display: none;
}

html[data-lang="zh"] .lang-zh {
  display: inline;
}

html[data-lang="en"] .lang-en {
  display: inline;
}

html[data-lang="zh"] .lang-zh.lang-block,
html[data-lang="zh"] .lang-zh.lang-block p,
html[data-lang="zh"] .lang-zh.lang-block li,
html[data-lang="zh"] .lang-zh.lang-block div {
  display: block;
}

html[data-lang="en"] .lang-en.lang-block,
html[data-lang="en"] .lang-en.lang-block p,
html[data-lang="en"] .lang-en.lang-block li,
html[data-lang="en"] .lang-en.lang-block div {
  display: block;
}

.masthead {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--line-soft);
  box-shadow: 0 6px 20px rgba(24, 37, 55, 0.05);
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
}

.masthead__inner-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .95rem;
  width: min(1280px, 94vw);
  max-width: none;
  margin: 0 auto;
  padding: .7rem .5rem !important;
}

.masthead__menu {
  flex: 1 1 100%;
  min-width: 0;
  padding-right: 0;
}

.top-nav {
  width: 100%;
  overflow: visible;
}

.top-nav__links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .62rem;
  margin: 0;
  padding: 0;
  list-style: none;
  white-space: nowrap;
}

.top-nav__links li {
  display: block;
}

.top-nav__links a {
  margin: 0 .9rem;
  padding: .56rem 0;
  font-size: 1.14rem;
  font-weight: 620;
  letter-spacing: .015em;
  position: relative;
  transition: color .18s ease;
}

.top-nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: #8ea7bf;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .2s ease;
}

.top-nav__links a:hover::after,
.top-nav__links a:focus::after {
  transform: scaleX(1);
}

.masthead__menu-item a {
  color: var(--brand-deep);
  font-weight: 560;
}

.masthead__lang {
  position: absolute;
  right: .45rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-left: 0;
}

.lang-switcher-btn {
  border: 1px solid #c8d5e1;
  color: #1e3a56;
  min-width: 4.9rem;
  background: #fff;
  border-radius: 999px;
  padding: .36rem .84rem;
  line-height: 1.2;
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .18s ease;
  box-shadow: 0 2px 10px rgba(24, 50, 74, 0.08);
}

.lang-switcher-btn:hover,
.lang-switcher-btn:focus {
  background: var(--brand-soft);
  border-color: #a8bcce;
  outline: 0;
  transform: translateY(-1px);
}

#main {
  max-width: 1280px;
  padding-top: 0rem;
}

.intro-section,
.cv-section {
  scroll-margin-top: 7.8rem;
}

#about-me {
  scroll-margin-top: 8.2rem;
}

.page__content > #about-me {
  margin-top: 1.15rem;
}

.intro-section {
  position: relative;
  margin: 0 0 1.1rem;
  padding: 1.22rem 1.42rem 1.3rem;
  border-radius: 16px;
  background: var(--card-bg);
  border: 1px solid #ccd9e6;
  box-shadow: 0 12px 30px rgba(20, 34, 50, 0.07), inset 0 1px 0 rgba(255, 255, 255, 0.85);
  overflow: hidden;
}

.intro-section::before {
  content: none;
}

.intro-section > .lang-block {
  position: relative;
  z-index: 1;
}

.intro-section .intro-title {
  margin: 0 0 .48rem;
  padding: 0 0 .45rem;
  border-bottom: 1px solid #e8eef4;
  color: #28435d;
  font-size: 1.14rem;
  font-weight: 700;
}

.intro-section h1 {
  margin: .12rem 0 0;
  padding: 0;
  border-bottom: none;
  color: #1f3348;
  font-size: 1.85rem;
}

.intro-section p {
  margin: .78rem 0 0;
  color: var(--text-muted);
  line-height: 1.75;
  font-size: 1rem;
}

.intro-section .intro-lead {
  color: #31465b;
  font-weight: 500;
  margin-top: .72rem;
}

.intro-meta {
  margin: 1.05rem 0 0;
  padding: .86rem 1rem;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: .54rem 1.28rem;
  background: #f6f9fd;
  border: 1px solid #dde7f1;
  border-radius: 10px;
}

.intro-meta li {
  margin: 0;
  color: #405264;
  font-size: .95rem;
  line-height: 1.55;
}

.intro-meta strong {
  color: #22384c;
  font-weight: 600;
}

.cv-section {
  margin: 0 0 1rem 0;
  padding: 1.22rem 1.22rem 1.07rem;
  border-radius: 14px;
  background: var(--card-bg);
  border: 1px solid var(--line-soft);
  box-shadow: 0 8px 22px rgba(20, 34, 50, 0.04);
}

.cv-section h2 {
  margin-top: 0;
  color: #1f3348;
  border-bottom: 1px solid #ebeff4;
  padding-bottom: .4rem;
  font-size: 1.28rem;
}

.cv-section h3 {
  color: #2f4255;
  margin-bottom: .3rem;
  font-size: 1.02rem;
  font-weight: 620;
}

.cv-section p {
  color: var(--text-muted);
  line-height: 1.65;
}

.cv-section li {
  margin-bottom: .45rem;
}

.section-note {
  margin: .3rem 0 .9rem;
  color: #5f7081;
  font-size: .94rem;
}

.pub-list {
  margin: 0;
  padding-left: 1.2rem;
}

.pub-list li {
  margin: 0 0 .85rem;
  padding: .9rem 1rem;
  border: 1px solid #e3ebf2;
  border-radius: 11px;
  background: #fafcfe;
}

.edu-item + .edu-item {
  margin-top: .82rem;
  padding-top: .82rem;
  border-top: 1px dashed var(--line-soft);
}

.page__content h1,
.page__content h2,
.page__content h3 {
  letter-spacing: .01em;
}

.page__content h1:before,
.page__content .anchor:before {
  content: none;
}

.sidebar .profile_box {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  box-shadow: 0 8px 20px rgba(21, 33, 49, 0.04);
  padding: 1rem .95rem;
}

.sidebar .author__name {
  margin-top: .45rem;
  margin-bottom: .35rem;
  font-size: 1.22rem;
  line-height: 1.28;
}

.sidebar .author__bio {
  color: #4e6073;
}

.sidebar .author__urls li,
.sidebar .author__urls a {
  color: #334a60;
}

.sidebar .author__urls li {
  white-space: normal;
  line-height: 1.48;
}

.sidebar .author__avatar img {
  border-width: 1px;
  border-color: #d6e1ec;
}

html[data-lang="en"] .intro-section p,
html[data-lang="en"] .intro-section li,
html[data-lang="en"] .cv-section p,
html[data-lang="en"] .cv-section li,
html[data-lang="en"] .sidebar .author__bio {
  overflow-wrap: break-word;
  word-break: normal;
  hyphens: auto;
}

.paper-box {
  display: flex;
  justify-content: left;
  align-items: center;
  flex-direction: row;
  flex-wrap: wrap;
  border-bottom: 1px #efefef solid;
  padding: 2em 0;
}

.paper-box .paper-box-image {
  justify-content: center;
  display: flex;
  width: 100%;
  order: 2;
}

.paper-box .paper-box-image img {
  max-width: 400px;
  box-shadow: 3px 3px 6px #888;
  object-fit: cover;
}

.paper-box .paper-box-text {
  max-width: 100%;
  order: 1;
}

@media (min-width: 1024px) {
  .sidebar {
    position: sticky;
    top: 6.9rem;
    align-self: flex-start;
  }
}

@media (max-width: 768px) {
  .masthead__inner-wrap {
    width: min(100%, 98vw);
    padding: .34rem .2rem !important;
    justify-content: space-between;
  }

  .top-nav {
    overflow-x: auto;
    overflow-y: hidden;
    -ms-overflow-style: none;
    scrollbar-width: none;
  }

  .top-nav::-webkit-scrollbar {
    display: none;
  }

  .top-nav__links a {
    margin: 0 .56rem;
    font-size: .94rem;
  }

  .lang-switcher-btn {
    min-width: 4.3rem;
    font-size: .82rem;
    padding: .33rem .62rem;
  }

  .masthead__menu {
    padding-right: 0;
    flex: 1 1 auto;
  }

  .masthead__lang {
    position: static;
    transform: none;
    margin-left: .45rem;
  }

  #main {
    padding-top: 3.35rem;
  }

  .page__content > #about-me {
    margin-top: .65rem;
  }

  .intro-section {
    margin-top: 0;
    padding: 1.2rem 1rem 1rem;
    border-radius: 12px;
  }

  .intro-meta {
    grid-template-columns: 1fr;
    gap: .35rem;
    padding: .65rem .75rem;
  }

  .cv-section {
    padding: 1rem .92rem;
    border-radius: 12px;
  }

  .paper-box .paper-box-image {
    justify-content: left;
    min-width: 200px;
    max-width: 40%;
    order: 1;
  }

  .paper-box .paper-box-text {
    justify-content: left;
    padding-left: 2em;
    max-width: 60%;
    order: 2;
  }
}