/* =====================================================================
   贾水库 · 专家个人宣传网站  样式表
   配色：石墨深灰（严谨稳重）+ 砖红（安全警示）
   ===================================================================== */

/* ---------------- 设计变量 ---------------- */
:root {
  --navy-900: #16191d;
  --navy-800: #23282e;
  --navy-700: #2f353d;
  --navy-600: #3d454f;
  --navy-500: #4d5765;
  --ink: #14171a;
  --ink-2: #343a42;
  --muted: #626b76;
  --muted-2: #8b939d;
  --line: #e6e8ea;
  --line-2: #d7dbdf;
  --bg: #ffffff;
  --bg-soft: #f6f7f8;
  --bg-soft-2: #eef0f2;
  --gold: #b8402e;
  --gold-2: #d9553c;
  --gold-soft: #fbeae4;
  --gold-line: #f0cec2;

  --radius: 14px;
  --radius-lg: 22px;
  --radius-sm: 8px;

  --shadow-1: 0 2px 8px rgba(35, 40, 46, .06);
  --shadow-2: 0 14px 38px rgba(35, 40, 46, .10);
  --shadow-3: 0 24px 60px rgba(22, 25, 29, .18);

  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC",
          -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  --nav-h: 72px;
  --wrap: 1180px;
}

/* ---------------- 基础重置 ---------------- */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { color: var(--ink); line-height: 1.3; margin: 0; font-weight: 700; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: var(--navy-600); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--gold); }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }

.wrap { width: min(100% - 48px, var(--wrap)); margin-inline: auto; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--navy-800); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 3px solid var(--gold-2); outline-offset: 3px; border-radius: 4px; }

/* ---------------- 通用按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; border: 1.5px solid transparent;
  font-weight: 600; font-size: 15px; letter-spacing: .02em;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--gold {
  background: linear-gradient(135deg, var(--gold-2), var(--gold));
  color: #2a0f08; box-shadow: 0 10px 24px rgba(184, 64, 46, .32);
}
.btn--gold:hover { color: #2a0f08; box-shadow: 0 14px 30px rgba(184, 64, 46, .42); }

.btn--ghost { border-color: rgba(255, 255, 255, .38); color: #fff; background: rgba(255, 255, 255, .06); }
.btn--ghost:hover { color: #fff; border-color: var(--gold-2); background: rgba(217, 85, 60, .14); }

.btn--ghost-light { border-color: rgba(255, 255, 255, .32); color: #eaf1fa; }
.btn--ghost-light:hover { color: #fff; border-color: var(--gold-2); background: rgba(217, 85, 60, .14); }

.btn--sm { padding: 9px 18px; font-size: 14px; }

/* ---------------- 顶部导航 ---------------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(22, 25, 29, .72);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.nav.is-solid {
  background: rgba(255, 255, 255, .94);
  border-bottom-color: var(--line);
  box-shadow: 0 6px 24px rgba(35, 40, 46, .08);
}

.nav__inner { height: 100%; display: flex; align-items: center; gap: 24px; }

.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand__mark {
  width: 42px; height: 42px; flex: none; border-radius: 12px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--gold-2), var(--gold));
  color: #2a0f08; font-family: var(--serif); font-size: 22px; font-weight: 700;
  box-shadow: 0 6px 18px rgba(184, 64, 46, .34);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.25; }
.brand__text strong { color: #fff; font-size: 18px; letter-spacing: .12em; font-family: var(--serif); }
.brand__text small { color: rgba(255, 255, 255, .68); font-size: 12px; letter-spacing: .04em; }
.nav.is-solid .brand__text strong { color: var(--navy-800); }
.nav.is-solid .brand__text small { color: var(--muted); }

.nav__links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav__links a {
  position: relative; padding: 8px 12px; border-radius: 8px;
  color: rgba(255, 255, 255, .82); font-size: 14.5px; font-weight: 500;
}
.nav__links a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 2px; height: 2px;
  background: linear-gradient(90deg, var(--gold-2), var(--gold));
  transform: scaleX(0); transform-origin: left; transition: transform .24s ease;
}
.nav__links a:hover { color: #fff; }
.nav__links a:hover::after, .nav__links a.is-active::after { transform: scaleX(1); }
.nav__links a.is-active { color: var(--gold-2); }
.nav.is-solid .nav__links a { color: var(--ink-2); }
.nav.is-solid .nav__links a:hover { color: var(--navy-700); }
.nav.is-solid .nav__links a.is-active { color: var(--navy-600); }

.nav__actions { display: flex; align-items: center; gap: 10px; flex: none; }

.nav__burger {
  display: none; width: 42px; height: 42px; border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, .24); background: transparent;
  flex-direction: column; gap: 4px; align-items: center; justify-content: center;
}
.nav__burger span { display: block; width: 18px; height: 2px; background: #fff; border-radius: 2px; transition: transform .22s ease, opacity .22s ease; }
.nav.is-solid .nav__burger { border-color: var(--line-2); }
.nav.is-solid .nav__burger span { background: var(--navy-800); }
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------------- 首屏 ---------------- */
.hero {
  position: relative; overflow: hidden;
  padding: calc(var(--nav-h) + 72px) 0 0;
  background:
    radial-gradient(1200px 620px at 78% -8%, rgba(42, 95, 158, .55), transparent 62%),
    linear-gradient(160deg, #16191d 0%, #23282e 46%, #2f353d 100%);
  color: #fff;
}
.hero__bg { position: absolute; inset: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .5; }
.orb--1 { width: 460px; height: 460px; right: -120px; top: -120px; background: rgba(184, 64, 46, .30); }
.orb--2 { width: 520px; height: 520px; left: -180px; bottom: -240px; background: rgba(42, 95, 158, .48); }
.grid-lines {
  position: absolute; inset: 0; opacity: .16;
  background-image:
    linear-gradient(rgba(255, 255, 255, .5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .5) 1px, transparent 1px);
  background-size: 76px 76px;
  -webkit-mask-image: radial-gradient(900px 520px at 30% 10%, #000, transparent 72%);
  mask-image: radial-gradient(900px 520px at 30% 10%, #000, transparent 72%);
}

.hero__inner {
  position: relative; display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(0, .78fr);
  gap: 56px; align-items: center; padding-bottom: 64px;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 16px; border-radius: 999px;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(217, 85, 60, .34);
  color: var(--gold-2); font-size: 13.5px; letter-spacing: .06em;
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--gold-2);
  box-shadow: 0 0 0 0 rgba(217, 85, 60, .7); animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(217, 85, 60, .6); }
  70% { box-shadow: 0 0 0 12px rgba(217, 85, 60, 0); }
  100% { box-shadow: 0 0 0 0 rgba(217, 85, 60, 0); }
}

.hero__name {
  margin: 22px 0 0; font-family: var(--serif); font-weight: 700;
  font-size: clamp(46px, 6.6vw, 82px); line-height: 1.05; letter-spacing: .06em; color: #fff;
}
.hero__name em {
  display: block; margin-top: 12px; font-style: normal;
  font-family: var(--sans); font-size: clamp(16px, 1.6vw, 20px); font-weight: 500;
  letter-spacing: .3em; color: var(--gold-2);
}
.hero__tag {
  margin-top: 22px; font-size: clamp(17px, 1.8vw, 21px); font-weight: 600; color: #eaf1fa;
  padding-left: 16px; border-left: 3px solid var(--gold);
}
.hero__summary { margin-top: 16px; max-width: 62ch; color: rgba(255, 255, 255, .76); font-size: 15.5px; line-height: 1.9; }

.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }

.hero__meta {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 10px 22px; margin-top: 34px; padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, .14);
}
.hero__meta li { display: flex; gap: 10px; font-size: 14.5px; color: rgba(255, 255, 255, .84); }
.hero__meta .k { color: var(--muted-2); flex: none; min-width: 52px; }
.hero__meta a { color: var(--gold-2); }
.hero__meta a:hover { color: #fff; }

.hero__card { display: flex; flex-direction: column; align-items: center; }
.hero__card .portrait { margin-inline: auto; }
.portrait { position: relative; width: min(100%, 340px); margin-inline: auto; }
.portrait img {
  width: 100%; height: auto; border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, .22);
  box-shadow: var(--shadow-3);
  position: relative; z-index: 1;
}
.portrait__ring {
  position: absolute; inset: -14px -14px 24px 14px; border-radius: 26px;
  border: 1px solid rgba(217, 85, 60, .55); z-index: 0;
}
.hero__badges { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 26px; }
.pill {
  padding: 6px 13px; border-radius: 999px; font-size: 12.5px; letter-spacing: .02em;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .16); color: rgba(255, 255, 255, .86);
}

/* ---------------- 数据条 ---------------- */
.stats {
  position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: rgba(255, 255, 255, .10); border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow: hidden; margin-bottom: -1px;
}
.stat {
  background: rgba(22, 25, 29, .55); padding: 26px 24px; text-align: center;
  backdrop-filter: blur(6px);
}
.stat__num { font-family: var(--serif); font-size: clamp(30px, 3.4vw, 42px); font-weight: 700; color: var(--gold-2); line-height: 1; }
.stat__num span { font-size: .55em; margin-left: 2px; }
.stat__label { display: block; margin-top: 10px; font-size: 13.5px; letter-spacing: .06em; color: rgba(255, 255, 255, .72); }

/* ---------------- 区块通用 ---------------- */
.section { padding: 92px 0; }
.section--tint { background: linear-gradient(180deg, var(--bg-soft), #fff 88%); }
.section--dark {
  background:
    radial-gradient(900px 480px at 85% 0%, rgba(42, 95, 158, .5), transparent 62%),
    linear-gradient(160deg, #16191d, #23282e 60%, #2f353d);
  color: rgba(255, 255, 255, .82);
}
.section--dark .sec-title { color: #fff; }

.sec-head { max-width: 760px; margin-bottom: 46px; }
.sec-kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 14px;
}
.sec-kicker::before { content: ""; width: 30px; height: 2px; background: linear-gradient(90deg, var(--gold), transparent); }
.sec-title { font-family: var(--serif); font-size: clamp(26px, 3.1vw, 38px); letter-spacing: .02em; }
.sec-sub { margin-top: 14px; color: var(--muted); font-size: 15.5px; }
.sec-head--light .sec-sub { color: rgba(255, 255, 255, .68); }

.sub-head {
  font-family: var(--serif); font-size: 21px; margin: 54px 0 22px;
  padding-left: 14px; border-left: 4px solid var(--gold); color: var(--ink);
}

/* ---------------- 网格与卡片 ---------------- */
.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow-1);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); border-color: var(--line-2); }
.card--lead { background: linear-gradient(180deg, #fff, var(--bg-soft)); border-color: var(--line-2); }
.card--lead::before {
  content: ""; position: absolute; left: 0; top: 22px; bottom: 22px; width: 3px;
  border-radius: 0 3px 3px 0; background: linear-gradient(180deg, var(--gold-2), var(--gold));
}
.card__title { font-size: 18px; margin-bottom: 16px; }
.prose { color: var(--ink-2); font-size: 15.4px; line-height: 1.95; text-align: justify; }

/* 事实清单 */
.factlist { margin-top: 22px; border-top: 1px dashed var(--line-2); padding-top: 18px; display: grid; gap: 9px; }
.factlist li { display: flex; gap: 12px; font-size: 14.6px; }
.factlist .k { flex: none; min-width: 76px; color: var(--muted); }
.factlist .v { color: var(--ink-2); }

/* 亮点卡 */
.hl-list { display: grid; gap: 16px; }
.hl {
  display: flex; gap: 16px; padding: 22px 24px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.hl:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); border-color: var(--gold-line); }
.hl__icon {
  flex: none; width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--gold-soft); color: var(--gold); font-size: 20px;
  border: 1px solid var(--gold-line);
}
.hl__title { font-size: 16.5px; margin-bottom: 8px; }
.hl__text { font-size: 14.6px; color: var(--muted); line-height: 1.85; }

/* ---------------- 培训方向卡 ---------------- */
.tcard {
  position: relative; display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px 24px; box-shadow: var(--shadow-1); overflow: hidden;
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.tcard::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 3px;
  background: linear-gradient(90deg, var(--gold-2), var(--gold));
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.tcard:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); border-color: var(--gold-line); }
.tcard:hover::after { transform: scaleX(1); }
.tcard__tag {
  align-self: flex-start; padding: 4px 12px; border-radius: 999px; margin-bottom: 14px;
  background: var(--navy-800); color: var(--gold-2); font-size: 12px; letter-spacing: .08em;
}
.tcard__title { font-size: 17.5px; line-height: 1.5; }
.tcard__desc { margin-top: 12px; font-size: 14.5px; color: var(--muted); line-height: 1.85; }
.tcard__points { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--line-2); display: grid; gap: 8px; }
.tcard__points li { position: relative; padding-left: 20px; font-size: 14px; color: var(--ink-2); }
.tcard__points li::before {
  content: ""; position: absolute; left: 2px; top: 10px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--gold);
}

/* 提示条 */
.callout {
  display: flex; gap: 22px; align-items: flex-start; margin-top: 34px;
  padding: 28px 32px; border-radius: var(--radius);
  background: linear-gradient(120deg, var(--navy-800), var(--navy-600));
  color: rgba(255, 255, 255, .86); box-shadow: var(--shadow-2);
}
.callout__icon {
  flex: none; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(217, 85, 60, .16); border: 1px solid rgba(217, 85, 60, .5); color: var(--gold-2); font-size: 20px;
}
.callout h3 { color: #fff; font-size: 17px; margin-bottom: 8px; }
.callout p { font-size: 15px; line-height: 1.9; }
.callout strong { color: var(--gold-2); }

/* ---------------- 列表样式 ---------------- */
.bullet-list { display: grid; gap: 12px; }
.bullet-list li {
  position: relative; padding-left: 24px; font-size: 14.8px; color: var(--ink-2); line-height: 1.85;
}
.bullet-list li::before {
  content: ""; position: absolute; left: 4px; top: 10px; width: 7px; height: 7px;
  border-radius: 2px; background: linear-gradient(135deg, var(--gold-2), var(--gold)); transform: rotate(45deg);
}

.course-list { display: grid; gap: 10px; }
.course-list li {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  padding: 11px 14px; border-radius: 10px; background: var(--bg-soft);
  border: 1px solid transparent; transition: border-color .2s ease, background .2s ease;
}
.course-list li:hover { background: #fff; border-color: var(--gold-line); }
.course-list .c-name { font-size: 14.7px; color: var(--ink); font-weight: 500; }
.course-list .c-level { flex: none; font-size: 12.5px; color: var(--muted); white-space: nowrap; }

.book-list { display: grid; gap: 16px; }
.book-list li { padding-bottom: 16px; border-bottom: 1px dashed var(--line-2); }
.book-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.book-list .b-year { font-family: var(--mono); font-size: 12.5px; color: var(--gold); letter-spacing: .06em; }
.book-list .b-title { display: block; margin-top: 6px; font-size: 15.6px; font-weight: 600; color: var(--ink); }
.book-list .b-meta { display: block; margin-top: 6px; font-size: 13.6px; color: var(--muted); }

.honor-list { display: grid; gap: 14px; }
.honor-list li { display: flex; gap: 16px; }
.honor-list .year {
  flex: none; width: 72px; font-family: var(--mono); font-size: 12.5px; color: var(--gold);
  letter-spacing: .04em; padding-top: 3px;
}
.honor-list .h-title { font-size: 15.2px; font-weight: 600; color: var(--ink); }
.honor-list .h-meta { font-size: 13.5px; color: var(--muted); margin-top: 3px; }

/* ---------------- 时间线 ---------------- */
.timeline { position: relative; display: grid; gap: 8px; padding-left: 0; }
.timeline::before {
  content: ""; position: absolute; left: 168px; top: 10px; bottom: 10px; width: 2px;
  background: linear-gradient(180deg, var(--gold-line), var(--line-2));
}
.tl {
  position: relative; display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 40px;
  padding: 20px 0;
}
.tl__period {
  text-align: right; font-family: var(--mono); font-size: 13px; color: var(--navy-600);
  letter-spacing: .02em; padding-top: 4px; line-height: 1.6;
}
.tl__body { position: relative; }
.tl__body::before {
  content: ""; position: absolute; left: -49px; top: 12px; width: 14px; height: 14px; border-radius: 50%;
  background: #fff; border: 3px solid var(--gold); box-shadow: 0 0 0 4px rgba(184, 64, 46, .14);
}
.tl__role {
  display: inline-block; font-size: 12.8px; letter-spacing: .05em; padding: 3px 12px;
  border-radius: 999px; background: var(--gold-soft); color: #7c6414; border: 1px solid var(--gold-line);
  margin-bottom: 10px;
}
.tl__org { font-size: 18px; font-family: var(--serif); }
.tl__role--plain { background: transparent; border: 0; padding: 0; margin: 0; }
.tl__detail { margin-top: 10px; font-size: 14.8px; color: var(--muted); line-height: 1.9; text-align: justify; }
.tl__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tl__tags span {
  font-size: 12.2px; padding: 3px 11px; border-radius: 6px;
  background: var(--bg-soft-2); color: var(--navy-600); border: 1px solid var(--line-2);
}

/* 教育经历 */
.edu {
  display: flex; gap: 18px; align-items: flex-start; background: #fff;
  border: 1px solid var(--line); border-left: 4px solid var(--gold);
  border-radius: var(--radius); padding: 24px 26px; box-shadow: var(--shadow-1);
  transition: transform .2s ease, box-shadow .2s ease;
}
.edu:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); }
.edu__year { font-family: var(--mono); font-size: 12.8px; color: var(--gold); flex: none; padding-top: 4px; }
.edu__school { font-size: 18px; font-family: var(--serif); display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.edu__badge {
  font-family: var(--sans); font-size: 11.5px; font-weight: 500; letter-spacing: .04em;
  padding: 2px 9px; border-radius: 5px; background: var(--navy-800); color: var(--gold-2);
}
.edu__degree { margin-top: 8px; font-size: 14.8px; color: var(--ink-2); font-weight: 500; }
.edu__major { margin-top: 4px; font-size: 14.2px; color: var(--muted); }

/* ---------------- 项目卡 ---------------- */
.pcard {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-1);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.pcard:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); border-color: var(--line-2); }
.pcard__top { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 12px; }
.pcard__level {
  font-size: 11.8px; letter-spacing: .06em; padding: 3px 10px; border-radius: 5px;
  background: var(--navy-800); color: #fff;
}
.pcard__level--prov { background: linear-gradient(135deg, var(--gold-2), var(--gold)); color: #2a0f08; }
.pcard__period { font-family: var(--mono); font-size: 12.4px; color: var(--muted); }
.pcard__title { font-size: 17.5px; }
.pcard__role { margin-top: 8px; font-size: 13.6px; color: var(--navy-600); }
.pcard__detail { margin-top: 12px; font-size: 14.4px; color: var(--muted); line-height: 1.88; }
.pcard__detail ol { display: grid; gap: 7px; margin-top: 4px; }
.pcard__detail ol li { position: relative; padding-left: 18px; }
.pcard__detail ol li::before {
  content: ""; position: absolute; left: 2px; top: 10px; width: 5px; height: 5px;
  border-radius: 50%; background: var(--gold);
}
.pcard__result {
  margin-top: auto; padding-top: 16px; display: flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 600; color: #7c6414;
}
.pcard__result::before { content: "★"; color: var(--gold); font-size: 15px; }

/* ---------------- 论文列表 ---------------- */
.filterbar { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 22px; }
.filterbar button {
  padding: 7px 16px; border-radius: 999px; font-size: 13.5px;
  border: 1px solid var(--line-2); background: #fff; color: var(--muted);
  transition: all .2s ease;
}
.filterbar button:hover { border-color: var(--gold-line); color: var(--navy-700); }
.filterbar button.is-active {
  background: var(--navy-800); border-color: var(--navy-800); color: var(--gold-2);
}

.paper-list { display: grid; gap: 12px; }
.paper {
  display: grid; grid-template-columns: 86px minmax(0, 1fr); gap: 20px;
  padding: 18px 22px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-sm); transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.paper:hover { border-color: var(--gold-line); box-shadow: var(--shadow-1); transform: translateX(3px); }
.paper__year {
  font-family: var(--mono); font-size: 14px; font-weight: 600; color: var(--gold);
  letter-spacing: .04em;
}
.paper__title { font-size: 15.2px; font-weight: 600; color: var(--ink); line-height: 1.65; }
.paper__venue { margin-top: 6px; font-size: 13.6px; color: var(--muted); line-height: 1.7; }
.paper__role {
  display: inline-block; margin-top: 8px; font-size: 12px; padding: 2px 10px; border-radius: 5px;
  background: var(--bg-soft-2); color: var(--navy-600); border: 1px solid var(--line-2);
}

/* ---------------- 联系区 ---------------- */
.contact-card {
  background: rgba(255, 255, 255, .055); border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--radius); padding: 32px; backdrop-filter: blur(6px);
}
.contact-card h3 { color: #fff; font-family: var(--serif); font-size: 22px; }
.contact-card__role { margin-top: 8px; color: var(--gold-2); font-size: 14.4px; }
.contact-list { margin-top: 22px; display: grid; gap: 12px; border-top: 1px solid rgba(255, 255, 255, .14); padding-top: 20px; }
.contact-list li { display: grid; grid-template-columns: 88px minmax(0, 1fr); gap: 14px; font-size: 14.6px; }
.contact-list li > span:first-child { color: rgba(255, 255, 255, .55); }
.contact-list a { color: var(--gold-2); }
.contact-list a:hover { color: #fff; }
.contact-card__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.contact-card--company { background: rgba(184, 64, 46, .08); border-color: rgba(217, 85, 60, .34); }

/* ---------------- 页脚 ---------------- */
.footer { background: var(--navy-900); border-top: 1px solid rgba(255, 255, 255, .08); padding: 28px 0; }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }
.footer p { color: rgba(255, 255, 255, .58); font-size: 13.4px; }
.footer__note { color: rgba(255, 255, 255, .34); }

/* ---------------- 回到顶部 ---------------- */
.totop {
  position: fixed; right: 24px; bottom: 24px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--gold-line);
  background: #fff; color: var(--navy-700); font-size: 18px; box-shadow: var(--shadow-2);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all .26s ease;
}
.totop.is-show { opacity: 1; visibility: visible; transform: translateY(0); }
.totop:hover { background: var(--navy-800); color: var(--gold-2); border-color: var(--navy-800); }

/* ---------------- 入场动画 ----------------
   默认可见（无 JS 也能完整阅读）；仅当 JS 成功运行并挂上 .js-reveal 后才淡入 */
.reveal { opacity: 1; transform: none; }
.js-reveal .reveal {
  opacity: 0; transform: translateY(22px);
  transition: opacity .7s cubic-bezier(.16,.84,.44,1), transform .7s cubic-bezier(.16,.84,.44,1);
}
.js-reveal .reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js-reveal .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* =====================================================================
   响应式
   ===================================================================== */
@media (max-width: 1080px) {
  .nav__links { gap: 0; }
  .nav__links a { padding: 8px 9px; font-size: 14px; }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  :root { --nav-h: 64px; }

  .nav__burger { display: flex; }
  .nav__links {
    position: fixed; inset: var(--nav-h) 0 auto 0; flex-direction: column; align-items: stretch;
    gap: 0; padding: 12px 24px 26px; margin: 0;
    background: rgba(22, 25, 29, .98); border-bottom: 1px solid rgba(255, 255, 255, .1);
    max-height: 0; overflow: hidden; opacity: 0; pointer-events: none;
    transition: max-height .3s ease, opacity .24s ease, padding .3s ease;
  }
  .nav__links.is-open { max-height: 460px; opacity: 1; pointer-events: auto; }
  .nav__links a { color: #fff !important; padding: 13px 4px; border-bottom: 1px solid rgba(255, 255, 255, .08); border-radius: 0; }
  .nav__links a::after { display: none; }
  .nav.is-solid .nav__links { background: rgba(255, 255, 255, .99); border-bottom-color: var(--line); }
  .nav.is-solid .nav__links a { color: var(--ink-2) !important; border-bottom-color: var(--line); }

  .hero { padding-top: calc(var(--nav-h) + 44px); }
  .hero__inner { grid-template-columns: 1fr; gap: 42px; padding-bottom: 48px; }
  .hero__card { order: -1; }
  .portrait { width: min(100%, 240px); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 68px 0; }
  .grid--2, .grid--3 { grid-template-columns: 1fr; }

  .timeline::before { left: 6px; }
  .tl { grid-template-columns: 1fr; gap: 8px; padding-left: 30px; }
  .tl__period { text-align: left; padding-top: 0; }
  .tl__body::before { left: -31px; top: 6px; }
}

@media (max-width: 620px) {
  .wrap { width: min(100% - 32px, var(--wrap)); }
  .hero__cta .btn { flex: 1 1 auto; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { padding: 20px 14px; }
  .sec-head { margin-bottom: 32px; }
  .card, .tcard, .pcard, .contact-card { padding: 22px 20px; }
  .callout { flex-direction: column; gap: 16px; padding: 24px 22px; }
  .paper { grid-template-columns: 1fr; gap: 8px; padding: 16px 18px; }
  .honor-list li { gap: 12px; }
  .honor-list .year { width: 62px; }
  .contact-list li { grid-template-columns: 1fr; gap: 2px; }
  .brand__text small { display: none; }
  .nav__actions .btn { display: none; }
  .sub-head { margin-top: 40px; }
}

/* ---------------- 打印 ---------------- */
@media print {
  .nav, .totop, .hero__cta, .contact-card__cta, .filterbar, .hero__bg, .skip-link { display: none !important; }
  body { color: #000; font-size: 11.5pt; }
  .hero, .section--dark { background: #fff !important; color: #000 !important; }
  .hero__name, .hero__name em, .hero__tag, .sec-title, .contact-card h3 { color: #000 !important; }
  .hero__summary, .footer p { color: #333 !important; }
  .section { padding: 18pt 0; break-inside: avoid; }
  .grid--2, .grid--3 { grid-template-columns: 1fr 1fr; }
  .card, .tcard, .pcard, .hl, .edu { box-shadow: none; border-color: #bbb; break-inside: avoid; }
  .reveal, .js-reveal .reveal { opacity: 1 !important; transform: none !important; }
}

/* ---------------- 讲座现场（贾水库站点新增） ---------------- */
.shots {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px;
  margin-top: 34px;
}
.shot {
  margin: 0; display: flex; flex-direction: column;
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-1);
  transition: transform .25s ease, box-shadow .25s ease;
}
.shot:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.shot img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: center 35%; }
.shot--wide { grid-column: 1 / -1; }
.shot--wide img { aspect-ratio: 16 / 9; object-position: center 38%; }
.shot figcaption {
  padding: 13px 18px 15px; font-size: 13px; line-height: 1.6;
  color: var(--muted); border-top: 1px solid var(--line); background: var(--bg-soft);
}

@media (max-width: 860px) {
  .shots { grid-template-columns: 1fr; }
}