/* ==========================================================================
   探索 / Explore the Worlds
   ========================================================================== */

:root {
  --bg: #030609;
  --text: #eae7df;
  --text-bright: #faf7ef;
  --muted: #949ca2;
  --line: rgba(235, 240, 242, .12);
  --line-soft: rgba(235, 240, 242, .07);
  --accent: #d9c3a0;
  --sans: "Avenir Next", "SF Pro Text", "Helvetica Neue", "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", "Times New Roman", serif;
  --mono: "SFMono-Regular", "Cascadia Mono", "Roboto Mono", "Liberation Mono", Consolas, monospace;
  --ease: cubic-bezier(.22, 1, .36, 1);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button:focus-visible, a:focus-visible { outline: 1px solid rgba(217,195,160,.9); outline-offset: 4px; }
::selection { color: #16120b; background: var(--accent); }
img { display: block; max-width: 100%; }

/* Topbar ------------------------------------------------------------------- */

.explore-topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 40;
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 38px;
  background: linear-gradient(180deg, rgba(3,6,9,.84), rgba(3,6,9,0));
  pointer-events: none;
}
.explore-brand { display: flex; align-items: center; gap: 12px; pointer-events: auto; }
.explore-mark {
  width: 42px; height: 42px; display: grid; place-items: center;
  border: 1px solid rgba(217,195,160,.3); border-radius: 50%;
  color: rgba(226,201,161,.96);
}
.explore-mark svg { width: 30px; height: 30px; }
.explore-brand-copy { display: flex; flex-direction: column; gap: 4px; }
.explore-brand-copy > span { font-size: 15px; font-weight: 500; letter-spacing: .09em; color: rgba(244,239,228,.95); }
.explore-brand-copy small { font-family: var(--mono); font-size: 6px; letter-spacing: .2em; color: rgba(149,157,157,.8); }
.explore-actions { display: flex; align-items: center; gap: 6px; pointer-events: auto; }
.explore-actions a {
  display: flex; align-items: center; height: 33px; padding: 0 12px;
  border: 1px solid var(--line); border-radius: 999px;
  background: rgba(5,9,13,.5);
  font-family: var(--mono); font-size: 8px; color: rgba(211,205,193,.82);
  backdrop-filter: blur(14px);
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}
.explore-actions a:hover { border-color: rgba(217,195,160,.48); color: var(--text-bright); background: rgba(16,21,26,.75); }

/* Hero --------------------------------------------------------------------- */

.explore-hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  padding: 160px 6vw 120px;
}
.explore-hero > img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: .68;
}
.explore-hero-overlay {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 58% 55%, transparent 20%, rgba(3,6,9,.55) 78%),
    linear-gradient(90deg, rgba(3,6,9,.92) 0%, rgba(3,6,9,.58) 42%, rgba(3,6,9,.24) 100%),
    linear-gradient(0deg, #030609 0%, transparent 46%);
}
.explore-hero-content { position: relative; z-index: 2; max-width: 770px; }
.explore-kicker {
  display: flex; align-items: center; gap: 9px;
  font-family: var(--mono); font-size: 7.5px; letter-spacing: .16em;
  color: rgba(209,184,145,.82);
}
.explore-kicker i { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px rgba(217,195,160,.7); }
.explore-hero h1 {
  margin: 20px 0 0;
  font-family: var(--serif);
  font-size: clamp(54px, 7.6vw, 112px);
  font-weight: 400;
  line-height: .98;
  letter-spacing: .03em;
  color: rgba(250,246,236,.98);
  text-shadow: 0 6px 60px rgba(0,0,0,.35);
}
.explore-hero h1 em { font-style: normal; color: #e0ba80; }
.explore-hero-content > p {
  margin: 22px 0 0;
  max-width: 590px;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(172,179,179,.94);
}
.explore-hero-actions { display: flex; align-items: center; gap: 8px; margin-top: 27px; flex-wrap: wrap; }
.explore-primary, .explore-secondary {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  min-height: 44px; padding: 0 18px;
  border: 1px solid rgba(217,195,160,.42); border-radius: 2px;
  background: rgba(217,195,160,.11);
  font-family: var(--mono); font-size: 9px; letter-spacing: .04em;
  color: rgba(247,229,201,.96);
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.explore-primary:hover { background: rgba(217,195,160,.2); border-color: rgba(217,195,160,.7); transform: translateY(-1px); }
.explore-secondary { border-color: rgba(255,255,255,.13); background: rgba(255,255,255,.025); color: rgba(207,207,198,.86); }
.explore-secondary:hover { border-color: rgba(217,195,160,.4); color: var(--text-bright); background: rgba(217,195,160,.06); }

.explore-hero-stats {
  position: absolute;
  right: 6vw;
  bottom: 120px;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  border-top: 1px solid rgba(235,240,242,.16);
  border-left: 1px solid rgba(235,240,242,.12);
  background: rgba(4,8,11,.28);
  backdrop-filter: blur(14px);
}
.explore-hero-stats div {
  display: flex; flex-direction: column; gap: 6px;
  padding: 15px 18px;
  border-right: 1px solid rgba(235,240,242,.12);
  border-bottom: 1px solid rgba(235,240,242,.12);
}
.explore-hero-stats strong { font-family: var(--serif); font-size: 32px; font-weight: 400; color: rgba(245,235,217,.95); line-height: 1; }
.explore-hero-stats span { font-family: var(--mono); font-size: 7px; letter-spacing: .06em; color: rgba(152,160,159,.78); }

/* Section intro ------------------------------------------------------------ */

.explore-intro {
  width: min(1320px, calc(100% - 12vw));
  margin: 0 auto;
  padding: 34px 0 44px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 50px;
  border-top: 1px solid var(--line-soft);
}
.explore-section-kicker { font-family: var(--mono); font-size: 7px; letter-spacing: .15em; color: rgba(160,154,142,.7); }
.explore-intro h2 {
  margin: 14px 0 0;
  font-family: var(--serif);
  font-size: clamp(31px, 3.6vw, 51px);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: .025em;
  color: rgba(243,238,227,.95);
}
.explore-intro > p {
  max-width: 390px;
  margin: 0 0 3px;
  font-size: 12px;
  line-height: 1.8;
  color: rgba(145,154,156,.9);
}

/* Cards -------------------------------------------------------------------- */

.explore-grid {
  width: min(1320px, calc(100% - 12vw));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.explore-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--line);
  background: rgba(7,11,14,.62);
  color: inherit;
  overflow: hidden;
  transition: border-color .3s var(--ease), transform .3s var(--ease), background .3s var(--ease);
}
.explore-card:hover {
  border-color: color-mix(in srgb, var(--card-accent) 55%, transparent);
  background: rgba(11,16,20,.82);
  transform: translateY(-3px);
}
.explore-card-image {
  position: relative;
  aspect-ratio: 1.6 / 1;
  overflow: hidden;
  background: #05090c;
}
.explore-card-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: .86;
  transition: transform .8s var(--ease), opacity .3s ease;
}
.explore-card:hover .explore-card-image img { transform: scale(1.035); opacity: .96; }
.explore-card-image::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(4,8,11,.82) 0%, transparent 45%), linear-gradient(90deg, rgba(4,8,11,.2), transparent 45%);
  pointer-events: none;
}
.explore-card-index {
  position: absolute;
  top: 14px; right: 16px;
  z-index: 2;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .12em;
  color: rgba(242,232,214,.82);
}
.explore-card-body { display: flex; flex-direction: column; flex: 1; padding: 18px 20px 20px; }
.explore-card-category { font-family: var(--mono); font-size: 6.5px; letter-spacing: .13em; color: color-mix(in srgb, var(--card-accent) 85%, #8b8a80); }
.explore-card h3 {
  margin: 9px 0 0;
  font-family: var(--serif);
  font-size: clamp(24px, 2.2vw, 34px);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: .025em;
  color: rgba(247,242,231,.97);
}
.explore-card-body > p {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.78;
  color: rgba(155,164,165,.92);
}
.explore-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 15px; }
.explore-tags span {
  padding: 4px 7px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: .03em;
  color: rgba(175,180,172,.8);
}
.explore-card-cta {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: auto;
  padding-top: 17px;
  border-top: 1px solid rgba(235,240,242,.07);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .04em;
  color: color-mix(in srgb, var(--card-accent) 82%, #cbc6b8);
}
.explore-card-cta i { font-style: normal; font-size: 14px; transition: transform .25s var(--ease); }
.explore-card:hover .explore-card-cta i { transform: translateX(4px); }

/* Footer ------------------------------------------------------------------- */

.explore-footer {
  width: min(1320px, calc(100% - 12vw));
  margin: 84px auto 0;
  padding: 55px 0 60px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}
.explore-footer span { font-family: var(--mono); font-size: 7px; letter-spacing: .14em; color: rgba(142,144,136,.7); }
.explore-footer h2 {
  margin: 14px 0 0;
  font-family: var(--serif);
  font-size: clamp(33px, 4vw, 57px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: .025em;
  color: rgba(245,240,229,.96);
}
.explore-footer h2 em { font-style: normal; color: #d9b57e; }
.explore-footer .explore-primary { flex: 0 0 auto; margin-bottom: 4px; }
.explore-bottom {
  width: min(1320px, calc(100% - 12vw));
  margin: 0 auto;
  padding: 20px 0 34px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-family: var(--mono);
  font-size: 6px;
  letter-spacing: .08em;
  color: rgba(103,112,113,.58);
}

/* Responsive --------------------------------------------------------------- */

@media (max-width: 1120px) {
  .explore-topbar { padding: 0 24px; }
  .explore-hero { padding: 150px 6vw 110px; }
  .explore-hero-stats { right: 6vw; bottom: 110px; }
  .explore-intro, .explore-grid, .explore-footer, .explore-bottom { width: min(1320px, calc(100% - 8vw)); }
  .explore-intro { gap: 30px; }
}

@media (max-width: 900px) {
  .explore-topbar { height: 66px; padding: 0 14px; }
  .explore-mark { width: 35px; height: 35px; }
  .explore-mark svg { width: 25px; height: 25px; }
  .explore-brand-copy > span { font-size: 13px; }
  .explore-brand-copy small { font-size: 5px; }
  .explore-actions a { height: 30px; padding: 0 8px; font-size: 6.5px; }
  .explore-hero { min-height: 82vh; padding: 120px 6vw 80px; align-items: flex-end; }
  .explore-hero h1 { font-size: clamp(46px, 10vw, 74px); }
  .explore-hero-content > p { max-width: 500px; font-size: 11.5px; }
  .explore-hero-stats { position: relative; right: auto; bottom: auto; margin-top: 28px; width: min(420px, 100%); grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .explore-hero-stats div { padding: 10px 9px; }
  .explore-hero-stats strong { font-size: 22px; }
  .explore-hero-stats span { font-size: 5.5px; }
  .explore-intro { flex-direction: column; align-items: flex-start; gap: 16px; padding: 28px 0 30px; }
  .explore-intro h2 { font-size: 34px; }
  .explore-intro > p { max-width: 500px; font-size: 11px; }
  .explore-grid { grid-template-columns: 1fr; gap: 14px; }
  .explore-card h3 { font-size: 27px; }
  .explore-card-body > p { font-size: 12px; }
  .explore-card-image { aspect-ratio: 1.7 / 1; }
  .explore-footer { flex-direction: column; align-items: flex-start; gap: 24px; margin-top: 60px; padding: 40px 0; }
  .explore-footer h2 { font-size: 40px; }
  .explore-footer .explore-primary { margin-bottom: 0; }
  .explore-bottom { flex-direction: column; gap: 6px; font-size: 5.5px; }
}

@media (max-width: 560px) {
  .explore-actions { gap: 4px; }
  .explore-actions a { font-size: 6px; padding: 0 7px; }
  .explore-hero { padding: 105px 20px 66px; min-height: 80vh; }
  .explore-hero h1 { font-size: 47px; }
  .explore-kicker { font-size: 6px; letter-spacing: .1em; }
  .explore-hero-content > p { font-size: 10.5px; line-height: 1.75; }
  .explore-hero-actions { margin-top: 20px; }
  .explore-primary, .explore-secondary { min-height: 40px; padding: 0 13px; font-size: 7.5px; }
  .explore-hero-stats { grid-template-columns: repeat(2, 1fr); width: 100%; }
  .explore-hero-stats div { padding: 9px 10px; }
  .explore-hero-stats strong { font-size: 21px; }
  .explore-intro, .explore-grid, .explore-footer, .explore-bottom { width: calc(100% - 32px); }
  .explore-intro h2 { font-size: 29px; }
  .explore-card-body { padding: 15px 15px 16px; }
  .explore-card h3 { font-size: 25px; }
  .explore-card-body > p { font-size: 11.5px; }
  .explore-card-image { aspect-ratio: 1.55 / 1; }
  .explore-tags span { font-size: 6.5px; }
  .explore-footer h2 { font-size: 34px; }
}

/* Mobile hero: full-width title and stacked stats */
@media (max-width: 900px) {
  .explore-hero { flex-direction: column; align-items: flex-start; justify-content: flex-end; min-height: 74vh; }
  .explore-hero-content { width: 100%; }
  .explore-hero-stats { width: 100%; margin-top: 26px; }
}
@media (max-width: 560px) {
  .explore-hero { min-height: 0; padding-bottom: 54px; }
  .explore-hero h1 { font-size: 44px; }
  .explore-hero-stats { grid-template-columns: repeat(2, 1fr); }
}
.explore-card-body > p { font-size: 13px; color: rgba(170, 178, 177, .94); }
@media (max-width: 900px) {
  .explore-card-body > p { font-size: 12px; }
}