/* ==========================================================
   DAOAN — components.css
   Hero / 站点卡 / 能力 / 时间线 / 实验室 / 关于
   ========================================================== */

/* ---------------- Hero ---------------- */
.hero {
  min-height: calc(100vh - 68px);
  display: flex;
  align-items: center;
  padding: 60px 0 90px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 56px;
  align-items: center;
}

.hero-title {
  font-size: clamp(46px, 8vw, 104px);
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: .96;
  margin-bottom: 22px;
}

.hero-title .thin {
  display: block;
  font-size: clamp(15px, 1.6vw, 20px);
  font-weight: 500;
  letter-spacing: .5em;
  color: var(--txt-dim);
  margin-top: 18px;
  text-transform: uppercase;
}

.hero-sub {
  font-size: clamp(15px, 1.5vw, 18px);
  color: var(--txt-dim);
  max-width: 54ch;
  margin-bottom: 32px;
}

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.type-line {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--cyan);
  margin-top: 34px;
  min-height: 20px;
}
.type-line .caret {
  display: inline-block;
  width: 8px;
  height: 15px;
  margin-left: 3px;
  vertical-align: -2px;
  background: var(--cyan);
  animation: blink 1.05s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* 右侧装饰环 */
.hero-visual {
  position: relative;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}
.ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(120, 180, 255, .16);
}
.ring.r1 { inset: 4%; animation: spin 26s linear infinite; border-top-color: var(--cyan); border-right-color: rgba(53,230,255,.45); }
.ring.r2 { inset: 16%; animation: spin 40s linear infinite reverse; border-bottom-color: var(--violet); }
.ring.r3 { inset: 29%; border-style: dashed; animation: spin 60s linear infinite; border-left-color: var(--gold); }
@keyframes spin { to { transform: rotate(360deg); } }

.hero-core {
  width: 46%;
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  background: radial-gradient(circle at 34% 28%, rgba(53,230,255,.28), rgba(160,107,255,.16) 46%, rgba(4,6,12,.9) 76%);
  border: 1px solid rgba(53, 230, 255, .35);
  box-shadow: 0 0 70px rgba(53, 230, 255, .22), inset 0 0 60px rgba(53, 230, 255, .12);
  position: relative;
  z-index: 2;
}
.hero-core b { font-size: clamp(22px, 3vw, 34px); letter-spacing: .08em; display: block; }
.hero-core span { font-family: var(--mono); font-size: 10px; letter-spacing: .34em; color: var(--cyan); }

.orb {
  position: absolute;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 16px var(--cyan);
}

/* ---------------- 数据条 ---------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--panel-line);
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat {
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  padding: 26px 22px;
  text-align: center;
}
.stat b {
  display: block;
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(120deg, var(--cyan), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat span { font-size: 12px; color: var(--txt-dim); letter-spacing: .16em; }

/* ---------------- 站点卡 ---------------- */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 38px;
}
.section-head h2 { margin-bottom: 6px; }

.site-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.site-card {
  position: relative;
  padding: 26px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--panel-line);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transform-style: preserve-3d;
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
  will-change: transform;
}
.site-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), color-mix(in srgb, var(--accent, var(--cyan)) 16%, transparent), transparent 62%);
  opacity: 0;
  transition: opacity .4s;
  pointer-events: none;
}
.site-card:hover { border-color: color-mix(in srgb, var(--accent, var(--cyan)) 45%, transparent); box-shadow: 0 20px 60px rgba(4, 10, 22, .55); }
.site-card:hover::after { opacity: 1; }

.site-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.site-badge {
  width: 38px; height: 38px;
  border-radius: 11px;
  display: grid; place-items: center;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent, var(--cyan));
  background: color-mix(in srgb, var(--accent, var(--cyan)) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent, var(--cyan)) 32%, transparent);
}
.site-name { font-weight: 800; font-size: 16px; letter-spacing: .01em; }
.site-domain { font-family: var(--mono); font-size: 12px; color: var(--txt-dim); }

.site-desc {
  font-size: 14px;
  color: var(--txt-dim);
  min-height: 66px;
  margin-bottom: 18px;
}

.site-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--txt-dim);
  border-top: 1px solid var(--panel-line);
  padding-top: 14px;
}
.dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  margin-right: 6px;
  animation: pulse 2.4s infinite;
}
@keyframes pulse { 50% { opacity: .35; } }

.tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.tag {
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--panel-line);
  color: var(--txt-dim);
  font-family: var(--mono);
}

/* ---------------- 能力 ---------------- */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 18px;
}
.cap {
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--panel-line);
  background: linear-gradient(160deg, rgba(23, 33, 54, .66), rgba(10, 15, 26, .52));
  transition: transform .4s var(--ease), border-color .3s;
}
.cap:hover { transform: translateY(-5px); border-color: rgba(53, 230, 255, .34); }
.cap-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: .2em;
  margin-bottom: 14px;
}
.cap h3 { margin-bottom: 8px; }
.cap p { font-size: 14px; margin: 0; }

/* ---------------- 时间线 ---------------- */
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 8px; bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--violet) 50%, transparent);
}
.tl-item { position: relative; padding: 0 0 34px 8px; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -30px; top: 7px;
  width: 15px; height: 15px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 14px rgba(53, 230, 255, .5);
}
.tl-item time {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: .12em;
}
.tl-item h3 { margin: 6px 0 4px; font-size: 17px; }
.tl-item p { font-size: 14px; margin: 0; }

/* ---------------- 筛选 ---------------- */
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 30px; }
.chip {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--panel-line);
  background: transparent;
  color: var(--txt-dim);
  font-size: 13px;
  font-family: var(--font);
  cursor: pointer;
  transition: all .25s;
}
.chip:hover { color: var(--txt); border-color: rgba(53,230,255,.4); }
.chip.active {
  color: #04121a;
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

/* ---------------- 实验室 ---------------- */
.lab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.lab-card {
  border-radius: var(--radius);
  border: 1px solid var(--panel-line);
  background: var(--panel);
  overflow: hidden;
}
.lab-card header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--panel-line);
  font-size: 13px;
}
.lab-card header b { font-family: var(--mono); letter-spacing: .1em; }
.lab-canvas { display: block; width: 100%; height: 240px; background: #04060c; }
.lab-card footer {
  padding: 12px 20px;
  font-size: 12px;
  color: var(--txt-dim);
  border-top: 1px solid var(--panel-line);
  font-family: var(--mono);
}

/* ---------------- 关于页 ---------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  align-items: start;
}
.kv { display: grid; grid-template-columns: 92px 1fr; gap: 10px 16px; font-size: 14px; }
.kv dt { color: var(--txt-dim); font-family: var(--mono); font-size: 12px; letter-spacing: .08em; }
.kv dd { margin: 0; color: var(--txt); }
.quote {
  border-left: 2px solid var(--cyan);
  padding: 6px 0 6px 18px;
  color: var(--txt);
  font-size: 15px;
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-visual { max-width: 320px; margin: 0 auto; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
}