/* =========================================================
   大对 · 个人主页 —— 复刻 Swashmotion 设计风格
   纯黑背景 / 霓虹绿强调 / 超大紧排标题 / 衬线点睛 / ASCII 字符场
   ========================================================= */

:root {
  --bg: #000000;
  --panel: #0d0d10;
  --ink: #e6e6e9;
  --muted: #9a9aa3;
  --line: rgb(255 255 255 / .1);
  --green: #24ff84;
  --green-ink: #041209;
  --font-display: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", Arial, system-ui, sans-serif;
  --font-hero: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Hiragino Sans GB", system-ui, sans-serif;
  --font-serif: Georgia, "Times New Roman", "Songti SC", "SimSun", serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --h1: clamp(3.5rem, 9vw, 8.75rem);
  --h2: clamp(2.6rem, 5.85vw, 5.25rem);
  --card-title: clamp(1.375rem, 1.9vw, 1.75rem);
  --body: 1rem;
  --radius-card: 16px;
  --radius-pill: 999px;
  --container: 112rem;
  --pad: clamp(1.25rem, 2.2vw, 2rem);
  --section-gap: clamp(4.25rem, 7.4vw, 108px);
  --head-gap: clamp(1.75rem, 3.2vw, 3rem);
  --ease: cubic-bezier(.23, 1, .32, 1);
  --ease-in-out: cubic-bezier(.77, 0, .175, 1);
  --dur-hover: .26s;
  --dur-enter: .76s;
  --measure-h2: 26ch;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--body);
  letter-spacing: .01em;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

h1, h2, h3, p, ul { margin: 0; }
ul { padding: 0; list-style: none; }
a { color: inherit; }
::selection { background: var(--green); color: var(--green-ink); }

.container { max-width: var(--container); margin-inline: auto; padding-inline: var(--pad); }
.eyebrow { color: var(--green); font-family: var(--font-mono); font-size: .8125rem; letter-spacing: .22em; margin-bottom: 1rem; }
.section-heading {
  font-size: var(--h2);
  font-weight: 600;
  letter-spacing: -.015em;
  line-height: 1.16;
  max-width: var(--measure-h2);
  margin-bottom: var(--head-gap);
}
/* 强调词：荧光笔高亮块（色带只覆盖字形主体，高度更矮、不碰相邻行） */
.section-heading em, .stmt__heading em, .contact__heading em {
  font-family: "Noto Sans SC", inherit; /* 900 字重必须有真字形，避免假粗体叠字 */
  font-style: normal;
  font-weight: 900;
  color: var(--green-ink);
  background-color: transparent;
  background-image: linear-gradient(var(--green), var(--green));
  background-repeat: no-repeat;
  background-size: calc(100% + .06em) .96em;
  background-position: 50% 54%;
  padding: 0 .05em;
  border-radius: .03em;
  letter-spacing: .01em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

/* ======================= 按钮 ======================= */
.btn {
  display: inline-flex;
  align-items: center;
  padding: .5rem 1.25rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.4;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--dur-hover) var(--ease), color var(--dur-hover) var(--ease),
              border-color var(--dur-hover) var(--ease), box-shadow var(--dur-hover) var(--ease),
              transform var(--dur-hover) var(--ease);
}
.btn--primary { background: var(--green); color: var(--green-ink); border-color: var(--green); }
.btn--primary:hover {
  background: color-mix(in srgb, var(--green) 88%, #d9ffe9);
  border-color: color-mix(in srgb, var(--green) 88%, #d9ffe9);
  box-shadow: 0 12px 30px -14px color-mix(in srgb, var(--green) 75%, transparent);
  transform: translateY(-2px) scale(1.015);
}
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--green); color: var(--green); transform: translateY(-2px) scale(1.015); }
.btn:active { transform: translateY(0) scale(.97); }
.btn--lg { padding: 1.1rem 3.4rem; font-size: 1.125rem; font-weight: 500; }
.btn--sm { padding: .45rem 1.1rem; font-size: .9375rem; }
.btn:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }

/* ======================= 导航 ======================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 70;
  background: #0009;
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: transform .4s var(--ease);
  will-change: transform;
}
.nav.is-hidden { transform: translateY(-100%); }
.nav__inner { max-width: var(--container); margin-inline: auto; padding: .9rem var(--pad); display: flex; align-items: center; gap: 2.5rem; }

.nav__logo { display: inline-flex; align-items: center; text-decoration: none; /* 负边距抵消绿点+间距，使「大对」文字与下方内容左边缘对齐 */ margin-left: calc(-7px - .42rem); }
.logo-mark {
  display: inline-flex; align-items: center; gap: .42rem;
  font-weight: 700; font-size: 1.125rem; letter-spacing: -.02em;
  color: var(--ink); line-height: 1;
  transition: color var(--dur-hover) var(--ease);
}
.logo-mark__dot {
  width: 7px; height: 7px; flex: none;
  background: var(--green); border-radius: 2px;
  transition: transform .4s var(--ease), border-radius .4s var(--ease);
}
.nav__logo:hover { color: var(--green); }
.nav__logo:hover .logo-mark__dot { transform: rotate(45deg) scale(1.25); border-radius: 0; }

.nav__links { display: flex; gap: 1.75rem; flex: 1; border-left: 1px solid var(--line); padding-left: 2rem; align-self: stretch; align-items: center; }
.nav__link, .nav__signin { color: var(--muted); text-decoration: none; font-size: 1rem; transition: color .2s var(--ease); }
.nav__link { position: relative; }
.nav__link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -.35rem; height: 1px;
  background: currentColor; transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-hover) var(--ease);
}
.nav__link:hover { color: var(--ink); }
.nav__link:hover::after { transform: scaleX(1); }
.nav__actions { display: flex; align-items: center; gap: 1.25rem; border-left: 1px solid var(--line); padding-left: 2rem; align-self: stretch; }
.nav__burger { display: none; position: relative; width: 2.75rem; height: 2.75rem; border: 0; background: transparent; cursor: pointer; }
.nav__burger-line { position: absolute; left: 50%; width: 1.25rem; height: 1.5px; margin-left: -.625rem; background: var(--ink); transition: transform .42s var(--ease); }
.nav__burger-line:nth-child(1) { top: calc(50% - 4px); }
.nav__burger-line:nth-child(2) { top: calc(50% + 4px); }
.nav__burger[aria-expanded="true"] .nav__burger-line:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.nav__burger[aria-expanded="true"] .nav__burger-line:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

/* ======================= 移动端抽屉 ======================= */
.drawer { position: fixed; inset: 0; z-index: 90; visibility: hidden; }
.drawer.is-open { visibility: visible; }
.drawer__scrim { position: absolute; inset: 0; background: #000c; opacity: 0; transition: opacity .3s var(--ease); }
.drawer.is-open .drawer__scrim { opacity: 1; }
.drawer__panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(22rem, 84vw);
  background: var(--panel); border-left: 1px solid var(--line);
  padding: 6rem 2rem 2rem; display: flex; flex-direction: column; gap: 2rem;
  transform: translateX(100%); transition: transform .4s var(--ease);
}
.drawer.is-open .drawer__panel { transform: translateX(0); }
.drawer__links { display: flex; flex-direction: column; gap: 1.25rem; }
.drawer__links a { color: var(--ink); text-decoration: none; font-size: 1.5rem; font-weight: 600; letter-spacing: -.01em; }
.drawer__links a:hover { color: var(--green); }
.drawer__cta { margin-top: 1rem; }
.drawer__legal { color: var(--muted); font-size: .875rem; margin-top: auto; }

main { position: relative; z-index: 2; }

html.is-locked, html.is-locked body { overflow: hidden; }

/* ======================= Hero ======================= */
.hero__scroller { position: relative; height: 170svh; z-index: 2; background: var(--bg); }
.hero { position: relative; }
.hero__viewport { position: sticky; top: 0; height: 100svh; overflow: clip; background: var(--bg); isolation: isolate; }
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }
.hero__scrim { position: absolute; inset: 0; background: radial-gradient(ellipse 62% 52% at 50% 50%, rgb(0 0 0 / .62), transparent 72%); z-index: 1; pointer-events: none; }
.hero__fade { position: absolute; left: 0; right: 0; bottom: 0; height: 34vh; background: linear-gradient(to bottom, rgb(0 0 0 / 0) 0%, rgb(0 0 0 / .55) 45%, var(--bg) 100%); z-index: 1; pointer-events: none; }

.hero__center {
  position: relative; z-index: 2; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 1.75rem; text-align: center; padding-inline: var(--pad);
}
/* 巨型展示标题：思源黑体 Heavy（厚重、干净、海报感） */
.hero__title {
  font-family: var(--font-hero);
  font-weight: 900;
  font-size: clamp(2rem, 8.6vw, 7.75rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--ink);
  text-align: center;
}
.hero__title-line { display: block; }
.hero__hi {
  display: inline-block;
  transform: rotate(-2.5deg) translateY(-.02em);
  color: var(--ink);
  margin-right: .06em;
}
.hero__hl {
  position: relative;
  color: var(--green);
  padding-inline: .01em;
  text-shadow: 0 0 48px color-mix(in srgb, var(--green) 30%, transparent);
}
.hero__title .kinetic-ch { display: inline-block; will-change: transform, opacity; }

.hero__sub {
  color: var(--ink);
  font-size: clamp(.95rem, 1.55vw, 1.3125rem);
  letter-spacing: .01em;
  white-space: nowrap;
  max-width: none;
}
.hero__actions { display: flex; justify-content: center; align-items: center; gap: .75rem; flex-wrap: wrap; }
.hero__hint { color: var(--muted); font-family: var(--font-mono); font-size: .75rem; letter-spacing: .2em; animation: hint-fade 2.6s var(--ease) infinite; }
@keyframes hint-fade { 0%, 100% { opacity: .35; } 50% { opacity: 1; } }

html.is-hero-in .hero__title,
html.is-hero-in .hero__sub,
html.is-hero-in .hero__actions,
html.is-hero-in .hero__hint { animation: hero-in .9s var(--ease) backwards; }
html.is-hero-in .hero__sub { animation-delay: .35s; }
html.is-hero-in .hero__actions { animation-delay: .5s; }
html.is-hero-in .hero__hint { animation-delay: .8s; }
@keyframes hero-in { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }

/* ======================= 跑马灯 ======================= */
.marquee { overflow: clip; border-block: 1px solid var(--line); padding-block: 1.1rem; position: relative; z-index: 2; background: var(--bg); }
.marquee__track { display: inline-flex; gap: 2.25rem; white-space: nowrap; will-change: transform; animation: marquee 28s linear infinite; }
.marquee__track span { font-size: 1.375rem; font-weight: 600; letter-spacing: -.01em; color: var(--ink); }
.marquee__track i { color: var(--green); font-style: normal; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ======================= 关于 ======================= */
.stmt { padding-block: var(--section-gap); position: relative; z-index: 2; background: var(--bg); }
.stmt__heading { font-size: var(--h2); font-weight: 600; letter-spacing: -.015em; line-height: 1.16; margin-bottom: var(--head-gap); }
.stmt__cols { display: grid; grid-template-columns: 1fr auto; gap: clamp(2rem, 3.6vw, 3.5rem); align-items: center; }
.stmt__lead { display: flex; flex-direction: column; gap: .5rem; font-size: clamp(1.0625rem, 1.45vw, 1.375rem); line-height: 1.7; color: var(--ink); max-width: none; }
.stmt__lead em {
  font-style: normal; font-weight: 700; font-size: .92em;
  color: var(--green-ink); background: var(--green);
  padding: .05em .26em .08em; border-radius: 4px; letter-spacing: .01em;
}
.portrait {
  position: relative; margin: 0;
  flex: none; align-self: center;
  width: 10.5rem; height: 13.5rem;
  padding: 8px;
  border: 1px solid var(--green);
  background: var(--panel);
  animation: frame-breathe 6s var(--ease) infinite;
}
.portrait img {
  display: block; width: 100%; height: 100%;
  object-fit: cover; object-position: center 15%;
  filter: saturate(.92) contrast(1.03);
}
.portrait__handle { position: absolute; width: 8px; height: 8px; background: var(--panel); border: 1px solid var(--green); z-index: 1; }
.portrait__handle--tl { top: -5px; left: -5px; }
.portrait__handle--tr { top: -5px; right: -5px; }
.portrait__handle--bl { bottom: -5px; left: -5px; }
.portrait__handle--br { bottom: -5px; right: -5px; }
.portrait__tag {
  position: absolute; bottom: 8px; left: 8px; right: 8px;
  padding: .18rem .4rem;
  background: #000b; color: var(--green);
  font-family: var(--font-mono); font-size: .58rem; letter-spacing: .12em;
  text-align: center;
  pointer-events: none;
}
@keyframes frame-breathe {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--green) 0%, transparent); }
  50% { box-shadow: 0 0 26px -6px color-mix(in srgb, var(--green) 45%, transparent); }
}
.stmt__meta {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(2rem, 4vw, 5rem);
  margin-top: clamp(2rem, 3.4vw, 3.25rem);
}
.meta-item { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.meta-item:nth-child(-n+2) { border-top: 1px solid var(--line); }
.meta-item span { color: var(--muted); font-size: .9375rem; }
.meta-item b { font-size: 1.0625rem; font-weight: 600; color: var(--ink); letter-spacing: -.01em; text-align: right; }

/* ======================= 卡片通用 ======================= */
.card {
  position: relative; display: flex; flex-direction: column; gap: .9rem;
  padding: 2rem; min-height: 26rem; border-radius: var(--radius-card);
  border: 1px solid var(--line);
  background: radial-gradient(120% 90% at 20% 0%, #ffffff1c, #fff0 70%);
  overflow: clip;
  transition: border-color var(--dur-hover) var(--ease), transform .5s var(--ease);
}
.card:hover { border-color: color-mix(in srgb, var(--green) 45%, var(--line)); transform: translateY(-4px); }
.card__title { font-size: var(--card-title); font-weight: 600; letter-spacing: -.005em; line-height: 1.3; color: var(--muted); }
.card:hover .card__title { color: var(--ink); }
.card__lead { color: var(--ink); }
.card__body { color: var(--muted); max-width: 30rem; }

/* ======================= 科研竞赛 ======================= */
.features { padding-block: var(--section-gap); position: relative; z-index: 2; background: var(--bg); }
.features__grid {
  display: grid; grid-template-columns: 1.5fr 1fr;
  grid-template-rows: auto auto;
  gap: 1.5rem;
  align-items: stretch;
}
.features__grid .card:first-child { grid-row: 1 / 3; }
.features .card { min-height: auto; }

/* ======================= 卡片内可视化（统一语言） ======================= */
.viz {
  margin-top: auto;
  padding-top: 1.25rem;
  display: flex; flex-direction: column; gap: .9rem;
  border-top: 1px solid var(--line);
}
/* ======================= 奖项陈列（级别框 + 奖级框 + 名称） ======================= */
.features .card__title { text-align: center; }
.awards {
  margin: 0;
  padding-top: 1.1rem;
  display: flex; flex-direction: column; gap: .7rem;
  border-top: 1px solid var(--line);
  list-style: none;
}
.awards li { display: flex; align-items: center; flex-wrap: wrap; gap: .45rem; }
.awards__tag {
  flex: none;
  font-family: var(--font-mono); font-size: .8rem; letter-spacing: .08em;
  line-height: 1.3125rem;
  padding: 0 .75rem; border-radius: 6px;
  min-width: 4.2rem; text-align: center;
  border: 1px solid color-mix(in srgb, var(--green) 45%, transparent);
  color: var(--green);
  background: color-mix(in srgb, var(--green) 8%, transparent);
  white-space: nowrap;
  transition: background var(--dur-hover) var(--ease), color var(--dur-hover) var(--ease);
}
.awards li:hover .awards__tag { background: var(--green); color: var(--green-ink); }
.awards__name { flex-basis: 100%; color: var(--muted); font-size: .875rem; line-height: 1.5; transition: color .22s var(--ease); }

/* 卡片内文字：鼠标悬停即高亮为霓虹绿 */
.card__title, .card__lead, .card__body { transition: color .22s var(--ease); }
.card :is(.card__title, .card__lead, .card__body, .awards__name):hover { color: var(--green); }
.meta-item span, .meta-item b { transition: color .22s var(--ease); }

/* ======================= 获奖证书滚动墙 ======================= */
/* 上下刻度式分割线：绿色渐隐 + 等距刻度 + 起点菱形 */
.certs__rule {
  position: relative; height: 1px;
  background: linear-gradient(90deg,
    color-mix(in srgb, var(--green) 60%, transparent) 0%,
    color-mix(in srgb, var(--green) 22%, transparent) 14%,
    var(--line) 52%,
    transparent 100%);
}
.certs__rule::before {
  content: ""; position: absolute; left: 0; top: 50%;
  width: 4px; height: 4px; margin-top: -2px;
  background: var(--green); transform: rotate(45deg);
}
.certs__rule::after {
  content: ""; position: absolute; left: 16%; right: 0; top: 0; height: 1px;
  background: repeating-linear-gradient(90deg,
    color-mix(in srgb, var(--muted) 45%, transparent) 0 1px, transparent 1px 14px);
}
.certs__rule--top { margin-top: clamp(2rem, 3.4vw, 3rem); margin-bottom: 1.25rem; }
.certs__rule--bottom { margin-top: 1.25rem; margin-bottom: 0; transform: scaleX(-1); }
.certs {
  margin-top: 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
}
.certs__track {
  display: flex; gap: 1.25rem;
  width: max-content;
  animation: certs-scroll 30s linear infinite;
}
.certs:hover .certs__track { animation-play-state: paused; }
.certs__group { display: flex; gap: 1.25rem; }
.certs__item {
  margin: 0; flex: none;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); overflow: hidden;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.certs__item:hover {
  border-color: var(--green);
  box-shadow: 0 0 28px -8px color-mix(in srgb, var(--green) 40%, transparent);
}
.certs__item img { display: block; height: 9.25rem; width: auto; }
@keyframes certs-scroll { to { transform: translateX(calc(-50% - .625rem)); } }
@media (prefers-reduced-motion: reduce) { .certs__track { animation: none; } }
.meta-item:hover span, .meta-item:hover b { color: var(--green); }

.viz__flow { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; }
.viz__chip { font-size: .75rem; padding: .32rem .6rem; border-radius: 7px; border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.viz__chip--on { color: var(--green-ink); background: var(--green); border-color: var(--green); font-weight: 600; }
.viz__arrow { color: var(--muted); font-size: .75rem; font-style: normal; }
.viz__note { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .06em; color: color-mix(in srgb, var(--green) 55%, transparent); }

/* 迷你折线图 */
.viz-chart { width: 100%; height: auto; display: block; }
.viz-chart__grid { stroke: rgb(255 255 255 / .08); stroke-width: 1; stroke-dasharray: 3 4; }
.viz-chart__line { fill: none; stroke: var(--green); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 720; stroke-dashoffset: 720; }
[data-stagger].is-in .viz-chart__line { animation: chart-draw 1.7s var(--ease) .15s forwards; }
@keyframes chart-draw { to { stroke-dashoffset: 0; } }
.viz-chart__area { opacity: 0; }
[data-stagger].is-in .viz-chart__area { animation: soft-in 1s ease .7s forwards; }
@keyframes soft-in { to { opacity: 1; } }
.viz-chart__dot { fill: var(--bg); stroke: var(--green); stroke-width: 1.8; }
.viz-chart__axis { display: flex; justify-content: space-between; margin-top: .5rem; font-family: var(--font-mono); font-size: .68rem; color: var(--muted); }

/* ======================= 项目 ======================= */
.blocks { padding-block: var(--section-gap); position: relative; z-index: 2; background: var(--bg); }
.blocks__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.block-card { min-height: auto; }
.block-card .card__title { color: var(--ink); }

/* 项目名下的全称副标题 */
.block-card__sub {
  margin-top: -.55rem;
  color: var(--muted); font-family: var(--font-mono);
  font-size: .8125rem; letter-spacing: .02em; line-height: 1.5;
  transition: color var(--dur-hover) var(--ease);
}
.block-card:hover .block-card__sub { color: color-mix(in srgb, var(--green) 62%, var(--muted)); }

/* 旗舰项目：通栏 + 左文右图 */
.block-card--wide {
  grid-column: 1 / -1;
  display: grid; grid-template-columns: 1.1fr .9fr;
  gap: clamp(1.5rem, 3.2vw, 3rem); align-items: center;
}
.block-card__main { display: flex; flex-direction: column; gap: .9rem; }

/* 光穹冷链（旗舰通栏卡）：标题与副标题略放大，正文与上一段等宽 */
.block-card--wide .card__title { font-size: clamp(1.75rem, 2.35vw, 2.125rem); }
.block-card--wide .block-card__sub { font-size: .9375rem; margin-top: -.7rem; }
.block-card--wide .card__body { max-width: none; }
.block-card__side { display: flex; flex-direction: column; gap: 1rem; }
.block-card__side .block-card__viz { margin: 0; padding: 1.1rem 1rem .6rem; }
.block-card__viz {
  margin: 0 0 .5rem; padding: 1.25rem 1rem .75rem; border-radius: 12px;
  background: var(--panel); border: 1px solid var(--line); overflow: hidden;
}
.block-card__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-block: .5rem; }
.block-card__stats > div { display: flex; flex-direction: column; gap: .2rem; padding: 1rem 1.1rem; border-radius: 12px; background: #ffffff08; border: 1px solid var(--line); }
.block-card__stats b { font-size: clamp(1.375rem, 2vw, 1.875rem); font-weight: 700; letter-spacing: -.02em; color: var(--green); line-height: 1.1; }
.block-card__stats span { color: var(--muted); font-size: .8125rem; }

/* 光穹冷链图集轮播：图片自动轮播，视频滑到当前页自动播放 */
.gallery { display: flex; flex-direction: column; gap: .6rem; }
.gallery__stage {
  position: relative; aspect-ratio: 16 / 9;
  border-radius: 12px; overflow: hidden;
  border: 1px solid var(--line); background: var(--panel);
}
.gallery__slide {
  position: absolute; inset: 0; margin: 0;
  opacity: 0; transition: opacity .6s var(--ease);
  pointer-events: none;
}
.gallery__slide.is-active { opacity: 1; pointer-events: auto; }
.gallery__slide img, .gallery__slide video { width: 100%; height: 100%; object-fit: cover; display: block; }
.gallery__slide img.gallery__img--contain { object-fit: contain; padding: .5rem; }
.gallery__bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.gallery__dots { display: flex; gap: .4rem; flex: none; }
.gallery__dot {
  width: 20px; height: 4px; border-radius: 999px; border: 0; padding: 0;
  background: #ffffff26; cursor: pointer;
  transition: background .25s var(--ease), width .25s var(--ease);
}
.gallery__dot:hover { background: #ffffff55; }
.gallery__dot.is-active { background: var(--green); width: 34px; }
.gallery__caption {
  margin: 0; color: var(--muted); font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .04em; text-align: right;
  transition: color var(--dur-hover) var(--ease);
}
.gallery:hover .gallery__caption { color: var(--green); }

/* ======================= 学生工作 ======================= */
.work { padding-block: var(--section-gap); position: relative; z-index: 2; background: var(--bg); }
/* 学生工作 = 左「任职」/ 右「主持」两栏 */
.work__cols {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(1.75rem, 3.4vw, 3.5rem); align-items: start;
}
.work__col-title {
  color: var(--green); font-family: var(--font-mono);
  font-size: .8125rem; letter-spacing: .22em; margin-bottom: .9rem;
}
.work__list { border-top: 1px solid var(--line); }
.work__row {
  display: grid; grid-template-columns: 3.5rem 1fr auto; align-items: center; gap: 1.5rem;
  padding: 1.4rem .5rem; border-bottom: 1px solid var(--line);
  transition: background var(--dur-hover) var(--ease), padding-left var(--dur-hover) var(--ease);
}
/* 双栏内收紧：编号列变窄、字号降一档，保证半幅宽下不换行 */
.work__cols .work__row { grid-template-columns: 2rem 1fr auto; gap: 1rem; padding: 1.05rem .4rem; }
.work__cols .work__name { font-size: clamp(.9375rem, 1.02vw, 1.0625rem); }
.work__row:hover { background: #ffffff06; padding-left: 1.25rem; }
.work__idx { color: var(--muted); font-family: var(--font-mono); font-size: .8125rem; }
.work__name { font-size: clamp(1.05rem, 1.6vw, 1.375rem); font-weight: 600; letter-spacing: -.01em; }
.work__tag {
  color: var(--green); border: 1px solid color-mix(in srgb, var(--green) 40%, transparent);
  border-radius: var(--radius-pill); padding: .2rem .8rem; font-size: .8125rem; white-space: nowrap;
}
.work__cols .work__tag { font-size: .75rem; padding: .18rem .65rem; }
/* 主持栏收尾注脚（已弃用，保留兜底） */
.hosting__note { margin-top: 1.25rem; color: var(--muted); font-size: .875rem; }
.hosting__note::before { content: "— "; color: var(--green); }

/* 工作瞬间照片墙：两行反向无缝轮播 */
.workwall {
  margin-top: clamp(2rem, 3.4vw, 3rem);
  display: grid; gap: 1rem;
}
.workwall__row {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
}
.workwall__track {
  display: flex; gap: 1rem;
  width: max-content;
  animation: workwall-scroll 25s linear infinite;
}
.workwall__track--rev { animation-duration: 25s; animation-direction: reverse; }
.workwall:hover .workwall__track { animation-play-state: paused; }
.workwall__group { display: flex; gap: 1rem; }
.workwall__item {
  margin: 0; flex: none;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); overflow: hidden;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.workwall__item:hover {
  border-color: var(--green);
  box-shadow: 0 0 28px -8px color-mix(in srgb, var(--green) 40%, transparent);
}
.workwall__item img { display: block; height: 9.5rem; width: auto; }
@keyframes workwall-scroll { to { transform: translateX(calc(-50% - .5rem)); } }
@media (prefers-reduced-motion: reduce) { .workwall__track { animation: none; } }

/* ======================= 规划 ======================= */
.plan { padding-block: var(--section-gap); position: relative; z-index: 2; background: var(--bg); }
.plan__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.plan__col { min-height: auto; gap: 1rem; }
.plan__year { color: var(--green); font-family: var(--font-mono); font-size: .875rem; letter-spacing: .2em; }
.plan__col h3 { font-size: var(--card-title); font-weight: 600; letter-spacing: -.01em; }
.plan__col p:last-child { color: var(--muted); }
/* 收尾句整句排成一行，字号随视口自动收缩以保证不折行 */
.plan__closing {
  margin-top: clamp(1.75rem, 3vw, 2.75rem);
  font-size: min(1.25rem, 2.05vw);
  color: var(--ink);
  max-width: none;
  white-space: nowrap;
}

/* ======================= 联系 ======================= */
.contact { padding-block: var(--section-gap); position: relative; z-index: 2; background: var(--bg); }
.contact__inner { display: flex; flex-direction: column; align-items: center; gap: 1.9rem; text-align: center; }
.contact__heading { font-size: var(--h2); font-weight: 600; letter-spacing: -.015em; line-height: 1.16; }
.contact__actions { display: flex; gap: .75rem; flex-wrap: wrap; justify-content: center; }
/* ======================= 页脚 ======================= */
.footer { position: relative; z-index: 1; background: var(--bg); border-top: 1px solid var(--line); padding-block: 3.5rem 2rem; }
.footer__inner { position: relative; z-index: 1; display: flex; flex-direction: column; gap: clamp(2rem, 3.6vw, 3rem); }
/* 页脚仅保留导航与联系两列，两列整体在页面内居中 */
.footer__top { display: grid; grid-template-columns: auto auto; justify-content: center; gap: clamp(6rem, 22vw, 17rem); align-items: start; }
.footer__col { display: flex; flex-direction: column; gap: .7rem; }
.footer__col-title { color: var(--ink); font-weight: 600; margin-bottom: .4rem; }
.footer__link { color: var(--muted); text-decoration: none; font-size: 1rem; transition: color var(--dur-hover) var(--ease), transform var(--dur-hover) var(--ease); display: inline-block; }
a.footer__link:hover { color: var(--ink); transform: translate(.2rem); }
.footer__link--static { cursor: default; }
.footer__bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1.25rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem; }

/* ======================= 进场与滚动显现 ======================= */
.reveal { opacity: 0; transform: translateY(24px); }
.reveal.is-in { opacity: 1; transform: none; transition: opacity var(--dur-enter) var(--ease), transform var(--dur-enter) var(--ease); }
[data-stagger] > .stagger__item { opacity: 0; transform: translateY(28px); }
[data-stagger].is-in > .stagger__item { opacity: 1; transform: none; transition: opacity var(--dur-enter) var(--ease), transform var(--dur-enter) var(--ease); transition-delay: calc(var(--i, 0) * 70ms); }

/* ======================= 响应式 ======================= */
@media (max-width: 1100px) {
  .features__grid { grid-template-columns: 1.5fr 1fr; }
}
@media (max-width: 880px) {
  .nav__links, .nav__actions { border-left: 0; padding-left: 0; }
  .nav__links { display: none; }
  .nav__burger { display: block; }
  .stmt__cols { grid-template-columns: 1fr; }
  .stmt__lead { justify-content: flex-start; }
  .portrait { align-self: start; width: 9rem; height: 11.5rem; }
  .stmt__meta { grid-template-columns: 1fr; }
  .features__grid, .blocks__grid, .plan__grid { grid-template-columns: 1fr; grid-template-rows: auto; }
  .block-card--wide { grid-template-columns: 1fr; }
  .features__grid .card:first-child { grid-row: auto; }
  .certs__item img { height: 7rem; }
  .workwall__item img { height: 6.75rem; }
  .footer__top { grid-template-columns: 1fr; justify-items: center; text-align: center; gap: 2.25rem; }
  .card { min-height: auto; }
  .hero__scroller { height: 135svh; }
  .work__row { grid-template-columns: 2.5rem 1fr; }
  .work__tag { display: none; }
  .work__cols { grid-template-columns: 1fr; gap: 2.25rem; }
}

/* 窄屏放不下整行时允许折行，保证字号可读 */
@media (max-width: 640px) {
  .plan__closing { white-space: normal; font-size: 1rem; }
}

/* ======================= 降级 ======================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee__track { animation: none; }
  .hero__hint { animation: none; }
  .portrait { animation: none; }
  .viz__fill { transform: scaleX(1); animation: none !important; }
  .viz-chart__line { stroke-dashoffset: 0; animation: none !important; }
  .viz-chart__area { opacity: 1; animation: none !important; }
  .reveal, [data-stagger] > .stagger__item { opacity: 1 !important; transform: none !important; }
}