/* VENUS4D — venus4d.asia · 时间轴叙事骨架 · 暮辉紫黑/启明金
   母题：横向卷轴带 / slot 符号星标 / 霓虹金光效 / 卷轴窗数字 */

:root {
  --vn-bg: #1A1423;
  --vn-bg-2: #221930;
  --vn-card: #251C37;
  --vn-card-2: #2B2143;
  --vn-gold: #FFD571;
  --vn-gold-2: #F0B44E;
  --vn-ink: #EFEAF7;
  --vn-mut: #B9AFCE;
  --vn-line: rgba(255, 213, 113, .28);
  --vn-glow: rgba(255, 213, 113, .45);
  --vn-deep: #120D1C;
  --vn-ff-display: "Cinzel Decorative", "Times New Roman", serif;
  --vn-ff-body: "Karla", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { overflow-x: clip; scroll-behavior: smooth; }

body {
  margin: 0;
  overflow-x: clip;
  background: var(--vn-bg);
  color: var(--vn-ink);
  font-family: var(--vn-ff-body);
  font-size: 16.5px;
  line-height: 1.75;
  padding-bottom: 96px;
}

::selection { background: var(--vn-gold); color: #1A1423; }

h1, h2, h3 {
  font-family: var(--vn-ff-display);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: .012em;
  margin: 0 0 .6em;
  text-shadow: 0 0 26px rgba(255, 213, 113, .22);
}

h1 { font-size: clamp(1.72rem, 4.4vw, 2.7rem); color: #fff; }
h2 { font-size: clamp(1.34rem, 3vw, 1.9rem); color: var(--vn-gold); }
h3 { font-size: 1.08rem; color: #fff; font-family: var(--vn-ff-body); font-weight: 700; letter-spacing: .01em; }

p { margin: 0 0 1.05em; }
a { color: var(--vn-gold); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { padding-left: 1.2rem; }

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

/* ---------- 按钮与霓虹金光 ---------- */

.vn-btn {
  display: inline-block;
  font-family: var(--vn-ff-body);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .02em;
  padding: .68em 1.5em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.vn-btn-gold {
  background: linear-gradient(135deg, var(--vn-gold) 0%, var(--vn-gold-2) 100%);
  color: #241705;
  box-shadow: 0 0 0 1px rgba(255, 213, 113, .35), 0 6px 26px rgba(255, 213, 113, .28);
}

.vn-btn-gold:hover { transform: translateY(-2px); box-shadow: 0 0 0 1px rgba(255, 213, 113, .55), 0 10px 34px rgba(255, 213, 113, .42); text-decoration: none; }

.vn-btn-line {
  background: rgba(255, 213, 113, .06);
  color: var(--vn-gold);
  border-color: var(--vn-line);
}

.vn-btn-line:hover { border-color: var(--vn-gold); background: rgba(255, 213, 113, .12); text-decoration: none; }

/* ---------- 头部 ---------- */

.vn-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 14, 30, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--vn-line);
  box-shadow: 0 4px 26px rgba(0, 0, 0, .35);
}

.vn-headin {
  max-width: 1160px;
  margin: 0 auto;
  padding: .65rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.vn-logo { display: inline-flex; align-items: center; gap: .55rem; color: #fff; }

.vn-logo:hover { text-decoration: none; }

.vn-logo-orb {
  font-size: 1.15rem;
  color: var(--vn-gold);
  text-shadow: 0 0 14px var(--vn-glow), 0 0 30px var(--vn-glow);
  animation: vn-pulse-star 3.2s ease-in-out infinite;
}

.vn-logo-word { font-family: var(--vn-ff-display); font-weight: 700; font-size: 1.06rem; letter-spacing: .09em; color: var(--vn-gold); }

.vn-nav { margin-left: auto; display: flex; gap: 1.3rem; }

.vn-nav a { color: var(--vn-mut); font-weight: 500; font-size: .95rem; }

.vn-nav a:hover, .vn-nav a.vn-on { color: var(--vn-gold); text-decoration: none; }

.vn-nav a.vn-on { border-bottom: 2px solid var(--vn-gold); padding-bottom: 2px; }

.vn-hact { display: flex; gap: .6rem; }

.vn-hact .vn-btn { padding: .5em 1.15em; font-size: .88rem; }

.vn-burger, .vn-navtog { display: none; }

.vn-burger {
  width: 42px;
  height: 42px;
  border: 1px solid var(--vn-line);
  border-radius: 9px;
  cursor: pointer;
  align-content: center;
  gap: 5px;
  grid-template-rows: repeat(3, 2px);
  justify-items: center;
  background: rgba(255, 213, 113, .05);
  margin-left: auto;
}

.vn-burger span { width: 20px; height: 2px; background: var(--vn-gold); border-radius: 2px; box-shadow: 0 0 8px var(--vn-glow); }

.vn-mnav { display: none; }

/* ---------- 天幕 hero ---------- */

.vn-sky {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--vn-line);
  background:
    radial-gradient(1.6px 1.6px at 12% 22%, rgba(255,255,255,.95) 50%, transparent 52%),
    radial-gradient(1.2px 1.2px at 26% 64%, rgba(255,244,214,.8) 50%, transparent 52%),
    radial-gradient(1.8px 1.8px at 37% 12%, rgba(255,255,255,.85) 50%, transparent 52%),
    radial-gradient(1.1px 1.1px at 52% 42%, rgba(255,255,255,.7) 50%, transparent 52%),
    radial-gradient(1.4px 1.4px at 61% 76%, rgba(255,238,196,.8) 50%, transparent 52%),
    radial-gradient(1.1px 1.1px at 68% 20%, rgba(255,255,255,.75) 50%, transparent 52%),
    radial-gradient(2px 2px at 79% 52%, rgba(255,248,224,.9) 50%, transparent 52%),
    radial-gradient(1.2px 1.2px at 88% 30%, rgba(255,255,255,.8) 50%, transparent 52%),
    radial-gradient(1.4px 1.4px at 94% 70%, rgba(255,244,214,.75) 50%, transparent 52%),
    radial-gradient(1.1px 1.1px at 8% 84%, rgba(255,255,255,.65) 50%, transparent 52%),
    radial-gradient(1.3px 1.3px at 45% 88%, rgba(255,255,255,.7) 50%, transparent 52%),
    radial-gradient(ellipse 70% 55% at 72% 12%, rgba(107, 91, 142, .28), transparent 70%),
    radial-gradient(ellipse 60% 50% at 18% 90%, rgba(240, 180, 78, .10), transparent 70%),
    linear-gradient(178deg, #221930 0%, var(--vn-bg) 46%, var(--vn-deep) 100%);
}

.vn-skyin {
  position: relative;
  z-index: 1;
  max-width: 1160px;
  margin: 0 auto;
  padding: clamp(3.2rem, 7vw, 5.6rem) 1.25rem clamp(3rem, 6vw, 5rem);
}

.vn-kicker {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--vn-gold);
  border: 1px solid var(--vn-line);
  border-radius: 999px;
  padding: .34em 1.1em;
  background: rgba(255, 213, 113, .07);
  margin-bottom: 1.3rem;
}

.vn-sky-copy { max-width: 660px; }

.vn-herop { color: var(--vn-mut); font-size: 1.02rem; }

.vn-heroact { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.5rem 0 2.2rem; }

.vn-skyfacts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .8rem; max-width: 640px; margin: 0; }

.vn-skyfacts > div {
  background: rgba(37, 28, 55, .72);
  border: 1px solid var(--vn-line);
  border-radius: 14px;
  padding: .8rem .95rem;
}

.vn-skyfacts dt { font-size: .74rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--vn-gold); margin-bottom: .15em; }

.vn-skyfacts dd { margin: 0; font-size: .86rem; color: var(--vn-ink); line-height: 1.5; }

/* 晨星轨迹弧（绝对定位装饰层，overflow clip 防溢出） */
.vn-sky-arc { position: absolute; inset: 0; z-index: 0; pointer-events: none; }

.vn-arc {
  position: absolute;
  left: -18%;
  top: -52%;
  width: 150%;
  aspect-ratio: 1.9 / 1;
  border: 2px dashed rgba(255, 213, 113, .34);
  border-radius: 50%;
  border-left-color: transparent;
  border-bottom-color: rgba(255, 213, 113, .12);
}

.vn-arc::after {
  content: "";
  position: absolute;
  right: 12%;
  top: 86%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--vn-gold);
  box-shadow: 0 0 16px 3px var(--vn-glow), 0 0 44px 10px rgba(255, 213, 113, .25);
}

.vn-arc-star {
  position: absolute;
  right: 13%;
  top: 22%;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: #FFF6DE;
  box-shadow: 0 0 18px 5px var(--vn-glow), 0 0 54px 16px rgba(255, 213, 113, .28);
  animation: vn-pulse-star 3.6s ease-in-out infinite;
}

.vn-arc-note {
  position: absolute;
  right: 15.5%;
  top: 12%;
  font-size: .68rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(255, 213, 113, .5);
  writing-mode: vertical-rl;
}

@keyframes vn-pulse-star {
  0%, 100% { opacity: 1; }
  50% { opacity: .45; }
}

/* ---------- 垂直时间轴 ---------- */

.vn-tlsec { max-width: 1160px; margin: 0 auto; padding: clamp(3rem, 6vw, 4.6rem) 1.25rem 1rem; }

.vn-tl-lead { color: var(--vn-mut); max-width: 720px; }

.vn-tl { position: relative; max-width: 1020px; margin: 2.4rem auto 0; }

.vn-tl::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 8px;
  bottom: 8px;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, var(--vn-gold) 6%, var(--vn-gold-2) 50%, var(--vn-gold) 94%, transparent);
  box-shadow: 0 0 14px rgba(255, 213, 113, .3);
}

.vn-tl-item { position: relative; width: 50%; padding-bottom: 3.2rem; }

.vn-tl-item:nth-of-type(odd) { padding-right: 3rem; }

.vn-tl-item:nth-of-type(even) { margin-left: 50%; padding-left: 3rem; }

.vn-tl-dot {
  position: absolute;
  top: .3rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: .95rem;
  font-weight: 700;
  background: radial-gradient(circle at 32% 28%, #34264F, #1C1530 70%);
  border: 2px solid var(--vn-gold);
  box-shadow: 0 0 0 5px rgba(255, 213, 113, .09), 0 0 22px rgba(255, 213, 113, .35);
  z-index: 2;
}

.vn-tl-item:nth-of-type(odd) .vn-tl-dot { right: -23px; }

.vn-tl-item:nth-of-type(even) .vn-tl-dot { left: -23px; }

.vn-tl-card {
  background: linear-gradient(165deg, var(--vn-card-2), var(--vn-card) 72%);
  border: 1px solid var(--vn-line);
  border-radius: 18px;
  padding: 1.35rem 1.5rem 1.5rem;
  box-shadow: 0 16px 42px rgba(0, 0, 0, .4);
  transition: border-color .2s ease, transform .2s ease;
}

.vn-tl-card:hover { border-color: rgba(255, 213, 113, .55); transform: translateY(-3px); }

.vn-tl-phase { font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--vn-gold); margin-bottom: .5rem; }

.vn-tl-phase i { font-style: normal; opacity: .55; }

.vn-tl-title { display: flex; align-items: center; gap: .65rem; font-family: var(--vn-ff-display); font-weight: 700; font-size: 1.18rem; color: #fff; margin-bottom: .45rem; }

/* 卷轴窗数字（幕号小卷轴） */
.vn-win {
  display: inline-flex;
  gap: 2px;
  padding: 3px 4px;
  border: 1px solid var(--vn-line);
  border-radius: 6px;
  background: #150F22;
  flex: none;
}

.vn-win i {
  font-style: normal;
  font-family: var(--vn-ff-body);
  font-size: .62rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--vn-gold);
  background: #221930;
  border-radius: 3px;
  padding: 0 3px;
  text-shadow: 0 0 8px var(--vn-glow);
}

.vn-tl-text { color: var(--vn-mut); font-size: .94rem; margin-bottom: .9rem; }

.vn-tl-link { font-weight: 700; font-size: .92rem; }

/* 横向卷轴带（节点分隔，母题 1） */
.vn-band {
  position: relative;
  max-width: 560px;
  margin: 0 auto 3.2rem;
  border-top: 2px solid var(--vn-gold-2);
  border-bottom: 2px solid var(--vn-gold-2);
  background: linear-gradient(90deg, #1E1631, #2A2044 30%, #2A2044 70%, #1E1631);
  box-shadow: 0 0 18px rgba(255, 213, 113, .16), inset 0 0 22px rgba(0, 0, 0, .5);
  border-radius: 8px;
  overflow: hidden;
}

.vn-bandin {
  display: flex;
  justify-content: space-between;
  gap: .4rem;
  padding: .34rem 1.1rem;
  white-space: nowrap;
}

.vn-band span {
  color: var(--vn-gold);
  font-size: .92rem;
  font-weight: 700;
  text-shadow: 0 0 10px var(--vn-glow);
}

.vn-band::before, .vn-band::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #150F22;
  border: 2px solid var(--vn-gold-2);
  transform: translateY(-50%);
  box-shadow: 0 0 8px rgba(255, 213, 113, .4);
}

.vn-band::before { left: -6px; }
.vn-band::after { right: -6px; }

/* ---------- Lingkaran Kejora 周期环 ---------- */

.vn-ringsec { max-width: 1160px; margin: 0 auto; padding: clamp(2.6rem, 5vw, 4rem) 1.25rem 1rem; }

.vn-ringsec h2 { text-align: center; }

.vn-ring-p { color: var(--vn-mut); max-width: 760px; margin: 0 auto 2.6rem; text-align: center; }

.vn-ring-wrap { display: grid; justify-items: center; gap: 1.3rem; }

.vn-ring { position: relative; width: min(430px, 82vw); aspect-ratio: 1; }

.vn-ring-orbit {
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  border: 2px dashed rgba(255, 213, 113, .5);
  box-shadow: inset 0 0 44px rgba(255, 213, 113, .08);
}

.vn-ring-mark {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 44px;
  height: 44px;
  margin: -22px 0 0 -22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 26%, #34264F, #1C1530 74%);
  border: 1px solid rgba(255, 213, 113, .6);
  box-shadow: 0 0 16px rgba(255, 213, 113, .3);
  font-size: .8rem;
  transform: rotate(var(--a, 0deg)) translate(min(37vw, 186px)) rotate(calc(-1 * var(--a, 0deg)));
}

.vn-ring-mark b { color: var(--vn-gold); text-shadow: 0 0 10px var(--vn-glow); font-size: .82rem; }

.vn-ring-core {
  position: absolute;
  inset: 31%;
  border-radius: 50%;
  display: grid;
  place-content: center;
  text-align: center;
  background: radial-gradient(circle at 50% 38%, #3A2B5C, #1E1631 78%);
  border: 1px solid rgba(255, 213, 113, .5);
  box-shadow: 0 0 34px rgba(255, 213, 113, .25), inset 0 0 24px rgba(255, 213, 113, .12);
}

.vn-ring-core b { display: block; font-family: var(--vn-ff-display); font-size: clamp(.8rem, 2.4vw, 1rem); color: var(--vn-gold); letter-spacing: .08em; }

.vn-ring-core i { font-style: normal; font-size: .78rem; color: var(--vn-mut); letter-spacing: .14em; }

.vn-ring-badge {
  display: inline-block;
  margin: 0;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--vn-gold);
  border: 1px dashed var(--vn-line);
  border-radius: 999px;
  padding: .42em 1.2em;
  background: rgba(255, 213, 113, .05);
}

/* ---------- 品牌叙述 / 配图 ---------- */

.vn-narr { max-width: 1160px; margin: 0 auto; padding: clamp(2.6rem, 5vw, 4rem) 1.25rem 1rem; }

.vn-narr p { color: var(--vn-mut); max-width: 820px; }

.vn-fig { margin: 1.8rem 0; }

.vn-fig img { width: 100%; border-radius: 18px; border: 1px solid var(--vn-line); box-shadow: 0 18px 48px rgba(0, 0, 0, .45); }

.vn-fig figcaption { font-size: .82rem; color: var(--vn-mut); margin-top: .6rem; text-align: center; }

/* ---------- 优势 ---------- */

.vn-adv { max-width: 1160px; margin: 0 auto; padding: clamp(2.6rem, 5vw, 4rem) 1.25rem 1rem; }

.vn-advgrid {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.1rem;
  counter-reset: vn-adv;
}

.vn-advgrid li {
  position: relative;
  counter-increment: vn-adv;
  background: linear-gradient(170deg, var(--vn-card-2), var(--vn-card));
  border: 1px solid var(--vn-line);
  border-radius: 16px;
  padding: 1.5rem 1.3rem 1.3rem;
}

.vn-advgrid li::before {
  content: counter(vn-adv, decimal-leading-zero);
  position: absolute;
  top: -14px;
  left: 1.1rem;
  font-family: var(--vn-ff-display);
  font-size: .85rem;
  font-weight: 700;
  color: #241705;
  background: linear-gradient(135deg, var(--vn-gold), var(--vn-gold-2));
  border-radius: 8px;
  padding: .12em .55em;
  box-shadow: 0 4px 14px rgba(255, 213, 113, .35);
}

.vn-advgrid p { color: var(--vn-mut); font-size: .92rem; margin: 0; }

/* ---------- 精选 ---------- */

.vn-picks { max-width: 1160px; margin: 0 auto; padding: clamp(2.6rem, 5vw, 4rem) 1.25rem 1rem; }

.vn-pickgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 1.15rem; margin-top: 2rem; }

.vn-pick {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  background: rgba(37, 28, 55, .6);
  border: 1px solid var(--vn-line);
  border-radius: 16px;
  padding: 1.4rem 1.35rem;
  transition: border-color .2s ease;
}

.vn-pick:hover { border-color: rgba(255, 213, 113, .5); }

.vn-pick h3 { margin: 0; }

.vn-pick h3 a { color: #fff; font-family: var(--vn-ff-display); font-size: 1.05rem; line-height: 1.35; }

.vn-pick p { color: var(--vn-mut); font-size: .92rem; margin: 0; flex: 1; }

.vn-pick-more { font-weight: 700; font-size: .9rem; }

/* ---------- FAQ ---------- */

.vn-faqsec { max-width: 880px; margin: 0 auto; padding: clamp(2.6rem, 5vw, 4rem) 1.25rem 1rem; }

.vn-q { border: 1px solid var(--vn-line); border-radius: 14px; background: rgba(37, 28, 55, .55); margin-bottom: .8rem; overflow: hidden; }

.vn-q summary {
  cursor: pointer;
  list-style: none;
  padding: 1rem 1.2rem;
  font-weight: 700;
  color: var(--vn-ink);
  display: flex;
  align-items: baseline;
  gap: .7rem;
}

.vn-q summary::-webkit-details-marker { display: none; }

.vn-q summary::before { content: "✦"; color: var(--vn-gold); text-shadow: 0 0 10px var(--vn-glow); flex: none; }

.vn-q[open] summary { color: var(--vn-gold); border-bottom: 1px dashed var(--vn-line); }

.vn-q p { padding: .9rem 1.2rem 1.1rem; margin: 0; color: var(--vn-mut); font-size: .95rem; }

/* ---------- 信任 ---------- */

.vn-trust {
  max-width: 880px;
  margin: clamp(2.4rem, 5vw, 3.6rem) auto 0;
  padding: clamp(1.8rem, 4vw, 2.6rem) clamp(1.4rem, 4vw, 2.4rem);
  text-align: center;
  border: 1px solid var(--vn-line);
  border-radius: 20px;
  background: radial-gradient(ellipse 80% 90% at 50% 0%, rgba(255, 213, 113, .08), transparent 70%), var(--vn-card);
  box-shadow: 0 20px 50px rgba(0, 0, 0, .4);
}

.vn-trust p { color: var(--vn-mut); }

.vn-trust-link { font-weight: 700; }

/* ---------- 内页通用 ---------- */

.vn-strip {
  display: flex;
  justify-content: space-between;
  gap: .5rem;
  padding: .4rem 1.4rem;
  border-bottom: 1px solid var(--vn-line);
  background: linear-gradient(90deg, #1E1631, #2A2044 30%, #2A2044 70%, #1E1631);
  overflow: hidden;
  white-space: nowrap;
}

.vn-strip span { color: var(--vn-gold); font-weight: 700; font-size: .88rem; text-shadow: 0 0 10px var(--vn-glow); }

.vn-paper { max-width: 860px; margin: 0 auto; padding: clamp(2.2rem, 5vw, 3.4rem) 1.25rem 3rem; }

.vn-crumbs { font-size: .82rem; color: var(--vn-mut); margin-bottom: 1.4rem; }

.vn-crumbs span { color: var(--vn-gold); }

.vn-lead { font-size: 1.05rem; color: var(--vn-ink); border-left: 3px solid var(--vn-gold); padding-left: 1.05rem; margin-bottom: 2rem; }

.vn-edu p, .vn-page p { color: var(--vn-mut); }

.vn-steps { list-style: none; padding: 0; margin: 1.4rem 0 2rem; display: grid; gap: .9rem; }

.vn-steps li { background: rgba(37, 28, 55, .55); border: 1px solid var(--vn-line); border-radius: 14px; padding: 1.05rem 1.2rem; }

.vn-steps h3 { margin: 0 0 .3rem; color: var(--vn-gold); font-family: var(--vn-ff-body); }

.vn-steps p { margin: 0; font-size: .94rem; }

.vn-list li { margin-bottom: .55rem; }

.vn-list b { color: var(--vn-gold); }

.vn-note {
  border: 1px dashed var(--vn-line);
  border-radius: 12px;
  background: rgba(255, 213, 113, .05);
  padding: .9rem 1.1rem;
  font-size: .92rem;
  color: var(--vn-ink);
}

.vn-aside {
  margin: 2.2rem 0 1.6rem;
  border: 1px solid var(--vn-line);
  border-radius: 16px;
  background: rgba(37, 28, 55, .55);
  padding: 1.2rem 1.3rem;
  display: grid;
  gap: .45rem;
}

.vn-aside h3 { margin: .7rem 0 .25rem; font-family: var(--vn-ff-display); font-size: .95rem; color: var(--vn-gold); }

.vn-aside h3:first-child { margin-top: 0; }

.vn-resp { font-size: .84rem; color: var(--vn-mut); border-top: 1px solid var(--vn-line); padding-top: 1rem; }

/* ---------- 页脚 ---------- */

.vn-foot { margin-top: 3rem; border-top: 1px solid var(--vn-line); background: var(--vn-deep); }

.vn-fband {
  display: flex;
  justify-content: space-between;
  gap: .5rem;
  padding: .38rem 1.4rem;
  border-bottom: 1px solid rgba(255, 213, 113, .16);
  background: linear-gradient(90deg, #150F22, #241A38 30%, #241A38 70%, #150F22);
  overflow: hidden;
  white-space: nowrap;
}

.vn-fband span { color: var(--vn-gold); font-size: .84rem; font-weight: 700; text-shadow: 0 0 8px var(--vn-glow); }

.vn-fgrid {
  max-width: 1160px;
  margin: 0 auto;
  padding: 2.4rem 1.25rem 1.4rem;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 1.6rem;
}

.vn-fcol h3 { font-family: var(--vn-ff-display); font-size: .95rem; color: var(--vn-gold); margin-bottom: .7rem; }

.vn-fcol a { display: block; color: var(--vn-mut); font-size: .92rem; padding: .18rem 0; }

.vn-fcol a:hover { color: var(--vn-gold); }

.vn-fbrand p { color: var(--vn-mut); font-size: .88rem; margin: .9rem 0; }

.vn-18 {
  display: inline-block;
  border: 2px solid var(--vn-gold);
  color: var(--vn-gold);
  border-radius: 10px;
  font-weight: 700;
  padding: .1em .55em;
  box-shadow: 0 0 14px rgba(255, 213, 113, .25);
}

.vn-fbot { border-top: 1px solid rgba(255, 213, 113, .14); padding: 1.2rem 1.25rem 1.6rem; text-align: center; }

.vn-fbot p { color: var(--vn-mut); font-size: .84rem; margin: .2rem 0; }

/* ---------- 底部悬浮条（唯一外链） ---------- */

.vn-float {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 70;
  display: flex;
  justify-content: center;
  padding: .6rem .8rem calc(.6rem + env(safe-area-inset-bottom, 0px));
  pointer-events: none;
}

.vn-floatin {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  max-width: min(94vw, 620px);
  background: rgba(18, 13, 28, .94);
  border: 1px solid rgba(255, 213, 113, .45);
  border-radius: 999px;
  padding: .5rem .55rem .5rem 1.3rem;
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, .55), 0 0 22px rgba(255, 213, 113, .16);
}

.vn-jp { font-size: .84rem; color: var(--vn-mut); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.vn-jp span { color: var(--vn-gold); }

.vn-blink { color: var(--vn-gold); animation: vn-blink 1.7s ease-in-out infinite; }

@keyframes vn-blink { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

.vn-enter { flex: none; animation: vn-glow-btn 2.6s ease-in-out infinite; white-space: nowrap; }

@keyframes vn-glow-btn {
  0%, 100% { box-shadow: 0 0 0 1px rgba(255, 213, 113, .35), 0 6px 26px rgba(255, 213, 113, .28); }
  50% { box-shadow: 0 0 0 1px rgba(255, 213, 113, .7), 0 6px 34px rgba(255, 213, 113, .55); }
}

/* ---------- 404 ---------- */

.vn-404body { padding-bottom: 0; }

.vn-404 { max-width: 720px; margin: 0 auto; padding: clamp(3rem, 8vw, 5.5rem) 1.25rem 4rem; text-align: center; }

.vn-404reels {
  display: flex;
  justify-content: center;
  gap: .6rem;
  margin-bottom: 1.6rem;
}

.vn-404reels span {
  width: 64px;
  height: 84px;
  display: grid;
  place-items: center;
  border: 2px solid var(--vn-gold-2);
  border-radius: 12px;
  background: radial-gradient(circle at 34% 26%, #34264F, #1C1530 74%);
  color: var(--vn-gold);
  font-family: var(--vn-ff-display);
  font-size: 1.6rem;
  text-shadow: 0 0 14px var(--vn-glow);
}

.vn-404 p { color: var(--vn-mut); }

.vn-404act { display: flex; flex-wrap: wrap; justify-content: center; gap: .8rem; margin-top: 1.6rem; }

/* ---------- 响应式 ---------- */

@media (max-width: 1020px) {
  .vn-tl::before { left: 23px; }
  .vn-tl-item, .vn-tl-item:nth-of-type(odd), .vn-tl-item:nth-of-type(even) { width: 100%; margin-left: 0; padding: 0 0 2.6rem 3.4rem; }
  .vn-tl-item:nth-of-type(odd) .vn-tl-dot, .vn-tl-item:nth-of-type(even) .vn-tl-dot { left: 0; right: auto; }
  .vn-band { margin-left: 3.4rem; max-width: none; }
}

@media (max-width: 820px) {
  .vn-nav, .vn-hact { display: none; }
  .vn-burger { display: grid; }
  .vn-head { position: sticky; }
  .vn-navtog:checked ~ .vn-mnav { display: block; }
  .vn-mnav { border-top: 1px solid var(--vn-line); background: rgba(20, 14, 30, .98); padding: 1.1rem 1.4rem 1.4rem; }
  .vn-mgrp { margin-bottom: 1.1rem; }
  .vn-mgrp h3 { font-family: var(--vn-ff-display); font-size: .85rem; color: var(--vn-gold); margin-bottom: .4rem; }
  .vn-mgrp a { display: block; color: var(--vn-mut); padding: .32rem 0; font-size: .95rem; }
  .vn-skyfacts { grid-template-columns: 1fr; }
  .vn-fgrid { grid-template-columns: 1fr 1fr; }
  .vn-arc-note { display: none; }
}

@media (max-width: 560px) {
  body { font-size: 15.5px; }
  .vn-fgrid { grid-template-columns: 1fr; gap: 1.2rem; }
  .vn-heroact .vn-btn { width: 100%; text-align: center; }
  .vn-jp { display: none; }
  .vn-floatin { padding-left: .8rem; }
  .vn-floatin .vn-enter { width: 100%; text-align: center; }
  .vn-band { margin-left: 0; }
  .vn-tl-item, .vn-tl-item:nth-of-type(odd), .vn-tl-item:nth-of-type(even) { padding-left: 3rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}