/* ==========================================================================
   Ander. Tech. — VioletFox. 项目档案页  project.css
   仅用于 violetfox.html（body.vf-page）。
   共享设计系统在 styles.css：本文件只补本页版式，且不覆盖首页样式。
   · @layer compat —— styles.css 缺失时的兜底（未分层规则优先于它）
   · 未分层的 .vf-* —— 本页专属版式与动效
   ========================================================================== */

/* ==========================================================================
   0. 兜底（styles.css 存在时基本被覆盖）
   ========================================================================== */

@layer compat {
  :root {
    --bg: #0b0812;
    --panel: #141020;
    --line: rgba(228, 216, 255, .16);
    --muted: #a9a2c0;
    --text: #f7f3ff;
    --violet: #a87cff;
    --pink: #ff8ed2;
    --blue: #9aa6ff;
    --max: 1240px;
    --gutter: 32px;
    --ease: cubic-bezier(.2, .8, .2, 1);
    --mono: "DM Mono", ui-monospace, SFMono-Regular, monospace;
    --sans: "Noto Sans SC", "Manrope", -apple-system, "Segoe UI", sans-serif;
    --display: "Manrope", "Noto Sans SC", sans-serif;
  }

  html { background: var(--bg); color-scheme: dark; }

  body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    -webkit-font-smoothing: antialiased;
  }

  h1, h2, h3, p, figure, dl, dd, figcaption { margin: 0; }
  ul, ol { margin: 0; padding: 0; list-style: none; }
  img { display: block; max-width: 100%; }
  a { color: inherit; }

  .page-noise {
    position: fixed;
    inset: 0;
    z-index: 9;
    pointer-events: none;
    opacity: .05;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
  }

  .ambient {
    position: fixed;
    width: 46vw;
    height: 46vw;
    border-radius: 50%;
    filter: blur(100px);
    opacity: .14;
    z-index: -3;
    pointer-events: none;
  }
  .ambient-one { background: #6a4bd8; top: -16vw; right: -14vw; }
  .ambient-two { background: #b8408f; bottom: 2vh; left: -26vw; opacity: .1; }

  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .7s var(--ease), transform .7s var(--ease);
  }
  .reveal.is-visible { opacity: 1; transform: none; }

  .reveal-load {
    opacity: 0;
    transform: translateY(20px);
    animation: load-in .85s var(--ease) forwards;
  }
  @keyframes load-in { to { opacity: 1; transform: none; } }

  .nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 19px;
    border-bottom: 1px solid var(--line);
  }

  .wordmark {
    display: inline-flex;
    align-items: baseline;
    color: var(--text);
    font: 800 18px/1 var(--display);
    letter-spacing: -.06em;
  }
  .wordmark span { color: var(--violet); }
  .wordmark em {
    margin-left: 7px;
    color: var(--muted);
    font: 500 9px/1 var(--mono);
    font-style: normal;
    letter-spacing: .22em;
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: #ddd7ee;
    font: 500 11px/1 var(--mono);
    letter-spacing: .09em;
  }

  .eyebrow,
  .kicker,
  .section-marker {
    margin: 0;
    color: var(--blue);
    font: 500 11px/1.4 var(--mono);
    letter-spacing: .13em;
    text-transform: uppercase;
  }
  .kicker { color: var(--muted); }

  .section-marker {
    display: flex;
    gap: 18px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--line);
    color: #8b84a3;
  }
  .section-marker span:first-child { color: var(--blue); }

  .footer {
    width: min(calc(100% - var(--gutter) * 2), var(--max));
    margin-inline: auto;
    padding: 35px 0 42px;
    display: flex;
    justify-content: space-between;
    gap: 20px;
    border-top: 1px solid var(--line);
    color: #8b83a0;
    font-size: 11px;
  }
  .footer-main,
  .footer-meta { display: flex; align-items: center; gap: 25px; flex-wrap: wrap; }
  .footer p { margin: 0; }
  .footer-tag {
    padding: 4px 9px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: #b8aecf;
    font: 500 10px/1 var(--mono);
    letter-spacing: .1em;
  }
  .footer-meta a { color: #d6cfe6; }

  .back-top {
    position: fixed;
    right: 25px;
    bottom: 25px;
    z-index: 8;
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    padding: 0;
    color: #16101f;
    background: #e4dcff;
    border: 0;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    opacity: 0;
    transform: translateY(15px);
    pointer-events: none;
    transition: opacity .25s ease, transform .25s ease;
  }
  .back-top.visible { opacity: 1; transform: none; pointer-events: auto; }

  .ticker {
    position: relative;
    overflow: hidden;
    padding: 15px 0;
    background: rgba(14, 10, 22, .65);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  }
  .ticker-track {
    display: flex;
    width: max-content;
    animation: marquee 46s linear infinite;
  }
  .ticker-group {
    display: flex;
    align-items: center;
    gap: 30px;
    padding-right: 30px;
  }
  .ticker-group span {
    color: #b2a9c8;
    font: 500 11px/1 var(--mono);
    letter-spacing: .22em;
    white-space: nowrap;
  }
  .ticker-group i { color: var(--violet); font-size: 7px; font-style: normal; }

  @keyframes marquee { to { transform: translateX(-50%); } }
}

/* ==========================================================================
   1. 页面基底
   ========================================================================== */

body.vf-page {
  position: relative;
  overflow-x: clip; /* clip 不建立滚动容器，sticky 才能正常工作 */
  line-height: 1.6;
}

.vf-container {
  width: min(calc(100% - var(--gutter, 32px) * 2), var(--max));
  margin-inline: auto;
}

::selection { background: var(--violet); color: #120a1e; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 4px;
}

/* ==========================================================================
   2. 顶部导航
   ========================================================================== */

.vf-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  padding-top: clamp(15px, 1.9vw, 24px);
  background: rgba(11, 8, 18, .76);
  backdrop-filter: blur(15px) saturate(150%);
  -webkit-backdrop-filter: blur(15px) saturate(150%);
}

.vf-nav-right {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 30px);
  min-width: 0;
}

.vf-nav-index {
  padding-right: clamp(14px, 2.2vw, 30px);
  border-right: 1px solid var(--line);
  color: #837a9c;
  font: 500 10px/1 var(--mono);
  letter-spacing: .16em;
  white-space: nowrap;
}

.vf-nav-back {
  font-size: 10.5px;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.vf-nav-back i {
  font-size: 13px;
  transition: transform .3s var(--ease);
}

.vf-nav-back:hover i { transform: translateX(-3px); }

/* ==========================================================================
   3. Hero
   ========================================================================== */

.vf-hero {
  position: relative;
  min-height: min(calc(100svh - 60px), 940px);
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
  padding-block: clamp(36px, 5vw, 70px) clamp(30px, 4vw, 55px);
}

.vf-hero-art {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

/* 氛围：把插画重模糊成一团紫罗兰光雾，而不是一张能认出脸的图 */
.vf-hero-art::before {
  content: "";
  position: absolute;
  inset: -18% -14% -18% 34%;
  background: url("Assets/Images/webp/homebg.webp") 58% 34% / cover no-repeat;
  opacity: .62;
  filter: blur(52px) brightness(.62) saturate(1.05);
  -webkit-mask-image: radial-gradient(ellipse at 62% 46%, #000 12%, rgba(0, 0, 0, .55) 46%, transparent 72%);
  mask-image: radial-gradient(ellipse at 62% 46%, #000 12%, rgba(0, 0, 0, .55) 46%, transparent 72%);
}

.vf-hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 76% 24%, rgba(168, 124, 255, .2), transparent 56%),
    linear-gradient(97deg, var(--bg) 4%, rgba(11, 8, 18, .9) 32%, rgba(11, 8, 18, .5) 62%, rgba(11, 8, 18, .92) 100%);
}

/* 轨道环：呼应首页 Hero 的 ellipse 图形语言 */
.vf-hero-rings {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000 30%, transparent 96%);
  mask-image: linear-gradient(180deg, #000 30%, transparent 96%);
}

.vf-ring {
  position: absolute;
  border: 1px solid rgba(196, 178, 255, .16);
  border-radius: 50%;
  transform: rotate(-23deg);
}

.vf-ring--a {
  width: min(780px, 56vw);
  height: min(420px, 31vw);
  right: -7%;
  top: 9%;
}

.vf-ring--b {
  width: min(540px, 40vw);
  height: min(300px, 23vw);
  right: 7%;
  bottom: 6%;
  border-color: rgba(255, 142, 210, .18);
}

.vf-ring::before {
  content: "";
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #d3c4ff;
  box-shadow: 0 0 18px 6px rgba(168, 124, 255, .65);
}

.vf-ring--a::before { top: -4px; left: 24%; }

.vf-ring--b::before {
  bottom: -4px;
  right: 27%;
  background: #ffb3dd;
  box-shadow: 0 0 18px 6px rgba(255, 142, 210, .55);
}

.vf-hero-inner {
  position: relative;
  z-index: 1;
  width: min(calc(100% - var(--gutter, 32px) * 2), var(--max));
}

.vf-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: #9d94b8;
}

/* Hero 载入节奏 */
.vf-hero-inner > .reveal-load:nth-child(1) { animation-delay: .1s; }
.vf-hero-inner > .reveal-load:nth-child(2) { animation-delay: .2s; }
.vf-hero-inner > .reveal-load:nth-child(3) { animation-delay: .34s; }
.vf-hero-inner > .reveal-load:nth-child(4) { animation-delay: .46s; }

.vf-title {
  margin: 22px 0 clamp(20px, 2.6vw, 32px);
  font: 800 clamp(58px, 11.6vw, 166px)/.8 var(--display);
  font-family: var(--display);
  letter-spacing: -.095em;
  color: var(--text);
}

.vf-title em {
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 1px rgba(238, 228, 255, .8);
}

.vf-title-dot {
  color: var(--pink);
  -webkit-text-stroke: 0;
}

.vf-hero-lower {
  display: flex;
  flex-direction: column;
  gap: clamp(24px, 3.2vw, 40px);
}

.vf-hero-sub {
  max-width: 26em;
  margin: 0;
  color: #ece6fb;
  font-size: clamp(15px, 1.35vw, 19px);
  font-weight: 500;
  line-height: 1.95;
  letter-spacing: .035em;
}

/* Hero 元信息 */
.vf-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.vf-meta-item {
  min-width: 0;
  padding: clamp(12px, 1.5vw, 18px) clamp(10px, 1.3vw, 20px) clamp(13px, 1.6vw, 20px);
  border-left: 1px solid var(--line);
}

.vf-meta-item:first-child {
  padding-left: 0;
  border-left: 0;
}

.vf-meta dt {
  margin-bottom: 9px;
  color: #8b84a3;
  font: 500 10px/1 var(--mono);
  letter-spacing: .17em;
  text-transform: uppercase;
}

.vf-meta dd {
  color: #f2ecff;
  font-size: clamp(13.5px, 1.05vw, 15.5px);
  font-weight: 500;
  letter-spacing: .01em;
  line-height: 1.4;
}

.vf-meta-status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.vf-hero-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: clamp(24px, 3.4vw, 44px);
}

.vf-scroll {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  color: #c7c0d8;
  font: 500 12px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  text-decoration: none;
  transition: color .3s ease;
}

.vf-scroll:hover { color: var(--text); }

.vf-scroll-line {
  position: relative;
  display: block;
  width: 72px;
  height: 1px;
  overflow: hidden;
  background: rgba(228, 216, 255, .24);
}

.vf-scroll-line::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 26px;
  background: var(--violet);
  animation: vf-drift 2.8s var(--ease) infinite;
}

@keyframes vf-drift {
  0%   { transform: translateX(-28px); }
  100% { transform: translateX(74px); }
}

.vf-hero-code {
  margin: 0;
  color: #837a9c;
  font: 500 10px/1 var(--mono);
  letter-spacing: .18em;
}

/* ==========================================================================
   4. 章节骨架
   ========================================================================== */

.vf-section {
  position: relative;
  padding-block: clamp(92px, 9.4vw, 150px);
}

.vf-section + .vf-section,
.vf-section + .vf-cta {
  border-top: 1px solid var(--line);
}

.vf-h2 {
  margin: 0;
  font: 700 clamp(37px, 5.3vw, 72px)/1.08 var(--display);
  font-family: var(--display);
  letter-spacing: -.065em;
  color: var(--text);
}

.vf-h2 span { color: #bda6ff; }

.vf-lead {
  max-width: 44ch;
  margin: 0;
  color: #c5bdd6;
  font-size: 15px;
  line-height: 2;
}

/* ==========================================================================
   5. 01 / PROJECT BRIEF
   ========================================================================== */

.vf-brief {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10%;
  padding-top: clamp(46px, 5.6vw, 75px);
}

.vf-brief-head .vf-h2 { margin-top: clamp(14px, 1.6vw, 22px); }

.vf-brief-body {
  max-width: 600px;
  padding-top: 8px;
  color: #c5bdd6;
  font-size: 15px;
  line-height: 2;
}

.vf-brief-body p { margin: 0 0 26px; }
.vf-brief-body p:last-child { margin-bottom: 0; }

.vf-brief-body .lead {
  color: #f0eafd;
  font-size: 17px;
  font-weight: 500;
}

/* ==========================================================================
   6. 02 / CAPABILITY LOOP
   ========================================================================== */

.vf-section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: end;
  padding-top: clamp(46px, 5.6vw, 75px);
  margin-bottom: clamp(40px, 4.6vw, 64px);
}

.vf-section-head .vf-lead { padding-bottom: 6px; }

.vf-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.vf-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: clamp(190px, 17vw, 232px);
  padding: clamp(24px, 2.4vw, 32px) clamp(20px, 2vw, 26px) clamp(26px, 2.6vw, 34px);
  border-right: 1px solid var(--line);
  background: transparent;
  transition: background .4s ease, transform .4s var(--ease), box-shadow .4s ease;
}

.vf-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, var(--violet), rgba(255, 142, 210, .5), transparent);
  opacity: 0;
  transition: opacity .45s ease;
}

.vf-card:hover {
  background: rgba(168, 124, 255, .07);
  transform: translateY(-5px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, .22);
}

.vf-card:hover::before { opacity: 1; }

.vf-card-tag {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  color: #8b84a3;
  font: 500 10.5px/1 var(--mono);
  letter-spacing: .18em;
  text-transform: uppercase;
}

.vf-card-tag span { color: var(--blue); }

.vf-card-title {
  margin: 18px 0 0;
  font-family: var(--sans);
  font-size: clamp(18px, 1.35vw, 21px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text);
  line-height: 1.4;
}

.vf-card-copy {
  margin: 11px 0 0;
  color: #b6adc8;
  font-size: 13.5px;
  line-height: 1.95;
}

/* 行内命令：把真实指令做成档案式的小标签 */
.vf-cmd {
  display: inline-block;
  padding: 1px 5px;
  color: #d6c8ff;
  background: rgba(168, 124, 255, .13);
  border: 1px solid rgba(168, 124, 255, .22);
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.6;
  letter-spacing: .01em;
  white-space: nowrap;
}

/* ==========================================================================
   7. 03 / DOSSIER
   ========================================================================== */

.vf-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 26px);
  margin-top: clamp(40px, 4.6vw, 64px);
}

.vf-plate {
  min-width: 0;
  margin: 0;
}

.vf-plate-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  background: var(--panel);
}

.vf-plate-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .04),
              inset 0 -80px 90px -60px rgba(9, 6, 16, .75);
}

.vf-plate-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease), filter .8s ease;
}

.vf-plate:hover .vf-plate-frame img { transform: scale(1.035); }

.vf-plate-tag {
  position: absolute;
  top: 13px;
  left: 13px;
  z-index: 2;
  padding: 5px 9px;
  color: #e6dff7;
  background: rgba(11, 8, 18, .52);
  border: 1px solid rgba(228, 216, 255, .2);
  font: 500 9.5px/1 var(--mono);
  letter-spacing: .16em;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

/* 品牌标记：透明 PNG，需要一块有质感的底板 */
.vf-plate-frame--brand {
  display: grid;
  place-items: center;
  background:
    radial-gradient(74% 74% at 50% 42%, rgba(168, 124, 255, .2), transparent 66%),
    linear-gradient(165deg, #171022 0%, #0d0914 58%, #0b0812 100%);
}

.vf-plate-frame--brand::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(circle at 50% 46%, #000, transparent 72%);
  mask-image: radial-gradient(circle at 50% 46%, #000, transparent 72%);
}

.vf-plate-frame--brand img {
  position: relative;
  z-index: 1;
  width: min(62%, 300px);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 18px 46px rgba(168, 124, 255, .4));
}

/* 品牌板的光环：一圈细环 + 外侧光晕 */
.vf-plate-halo {
  position: absolute;
  inset: 0;
  margin: auto;
  z-index: 0;
  width: 66%;
  aspect-ratio: 1 / 1;
  border: 1px solid rgba(168, 124, 255, .22);
  border-radius: 50%;
  box-shadow: 0 0 70px 22px rgba(168, 124, 255, .12) inset;
  transition: transform .9s var(--ease), border-color .5s ease;
}

.vf-plate-halo::after {
  content: "";
  position: absolute;
  inset: 14%;
  border: 1px solid rgba(255, 142, 210, .16);
  border-radius: 50%;
}

.vf-plate:hover .vf-plate-halo {
  transform: scale(1.03);
  border-color: rgba(168, 124, 255, .4);
}

.vf-plate:hover .vf-plate-frame--brand img {
  transform: scale(1.04) rotate(-1.5deg);
}

.vf-plate-cap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  margin-top: 13px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
}

.vf-plate-label {
  color: #8b84a3;
  font: 500 10px/1.5 var(--mono);
  letter-spacing: .16em;
  transition: color .4s ease;
}

.vf-plate:hover .vf-plate-label { color: var(--violet); }

.vf-plate-name {
  flex: none;
  color: #ddd7ee;
  font-size: 13px;
}

/* 技术档案条 */
.vf-spec {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: clamp(26px, 3.2vw, 44px) 0 0;
  border: 1px solid var(--line);
  border-right: 0;
}

.vf-spec-item {
  min-width: 0;
  padding: clamp(16px, 1.7vw, 22px) clamp(14px, 1.5vw, 22px);
  border-right: 1px solid var(--line);
}

.vf-spec dt {
  margin-bottom: 10px;
  color: #8b84a3;
  font: 500 9.5px/1 var(--mono);
  letter-spacing: .17em;
  text-transform: uppercase;
}

.vf-spec dd {
  margin: 0;
  color: #ece6fb;
  font-size: clamp(13.5px, 1.05vw, 15px);
  font-weight: 500;
  line-height: 1.4;
}

/* ==========================================================================
   8. 04 / NEXT
   ========================================================================== */

.vf-next-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: clamp(28px, 4vw, 72px);
  align-items: start;
  overflow: hidden;
  margin-top: clamp(40px, 4.6vw, 64px);
  padding: clamp(26px, 3.8vw, 56px);
  border: 1px solid rgba(168, 124, 255, .32);
  background:
    radial-gradient(120% 140% at 4% -10%, rgba(168, 124, 255, .22), transparent 58%),
    linear-gradient(158deg, rgba(24, 17, 41, .96), rgba(12, 8, 18, .94) 62%);
  box-shadow: 0 34px 90px -46px rgba(168, 124, 255, .5);
}

.vf-next-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, var(--violet), rgba(255, 142, 210, .55) 42%, transparent 78%);
}

.vf-next-main,
.vf-next-body { position: relative; z-index: 1; }

.vf-next-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--pink);
  letter-spacing: .18em;
}

.vf-next-badge .status-dot {
  background: var(--pink);
  box-shadow: 0 0 10px rgba(255, 142, 210, .85);
}

.vf-next-title {
  margin-top: clamp(16px, 2.2vw, 28px);
  font-size: clamp(32px, 4.7vw, 64px);
  line-height: 1.06;
}

.vf-next-body {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 1.7vw, 22px);
  padding-top: clamp(6px, 1.2vw, 18px);
}

.vf-next-body p {
  margin: 0;
  color: #c5bdd6;
  font-size: 15px;
  line-height: 2;
}

.vf-next-body .lead {
  color: #f0eafd;
  font-size: 17px;
  font-weight: 500;
}

.vf-next-note {
  grid-column: 1 / -1;
  position: relative;
  z-index: 1;
  margin: clamp(2px, .4vw, 6px) 0 0;
  padding-top: clamp(14px, 1.5vw, 20px);
  border-top: 1px solid rgba(168, 124, 255, .22);
  color: #837a9c;
  font: 500 9.5px/1.8 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
}

/* ==========================================================================
   9. CTA
   ========================================================================== */

.vf-cta {
  position: relative;
  padding-block: clamp(84px, 8.6vw, 138px);
}

.vf-cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(30px, 4vw, 64px);
  align-items: end;
  padding: clamp(26px, 3.6vw, 54px);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 130% at 6% 0%, rgba(168, 124, 255, .14), transparent 56%),
    linear-gradient(160deg, rgba(20, 16, 32, .92), rgba(11, 8, 18, .5));
}

.vf-cta-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  margin-bottom: clamp(16px, 2vw, 26px);
}

.vf-h2--cta { font-size: clamp(34px, 4.9vw, 66px); }

.vf-cta-copy {
  max-width: 38ch;
  margin: clamp(16px, 1.9vw, 24px) 0 0;
  color: #c5bdd6;
  font-size: 15px;
  line-height: 2;
}

.vf-cta-side {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 1.6vw, 20px);
}

.vf-actions {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.vf-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  color: #f2ecff;
  background: rgba(255, 255, 255, .022);
  border: 1px solid var(--line);
  font-size: 14px;
  text-decoration: none;
  transition: background .35s ease, border-color .35s ease,
              color .35s ease, transform .35s var(--ease);
}

.vf-btn i {
  font-size: 14px;
  opacity: .65;
  transition: transform .35s var(--ease), opacity .35s ease;
}

.vf-btn:hover {
  background: rgba(168, 124, 255, .1);
  border-color: rgba(168, 124, 255, .7);
  transform: translateY(-2px);
}

.vf-btn:hover i { transform: translate(2px, -2px); opacity: 1; }

.vf-btn--primary {
  color: #140c26;
  background: var(--violet);
  border-color: transparent;
  font-weight: 700;
}

.vf-btn--primary:hover {
  color: #140c26;
  background: #bb98ff;
  border-color: transparent;
}

.vf-btn--primary i { opacity: .9; }

.vf-btn--ghost {
  color: #b6adc8;
  background: transparent;
  border-color: transparent;
  padding-block: 11px;
}

.vf-btn--ghost:hover {
  color: var(--text);
  background: transparent;
  border-color: transparent;
}

.vf-btn--ghost:hover i { transform: translateX(3px); }

.vf-cta-note {
  margin: 0;
  color: #837a9c;
  font: 500 9.5px/1.8 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
}

/* ==========================================================================
   10. 响应式
   ========================================================================== */

@media (max-width: 1080px) {
  .vf-brief { gap: 6%; }
  .vf-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .vf-card:nth-child(2n) { border-right: 0; }
  .vf-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 760px) {
  .vf-nav-index { display: none; }

  .vf-hero {
    min-height: auto;
    padding-block: 40px 44px;
  }

  .vf-hero-art::before {
    inset: -12% -42% -12% 6%;
    opacity: .5;
    filter: blur(38px) brightness(.6) saturate(1.05);
    -webkit-mask-image: radial-gradient(ellipse at 54% 40%, #000 10%, rgba(0, 0, 0, .45) 46%, transparent 70%);
    mask-image: radial-gradient(ellipse at 54% 40%, #000 10%, rgba(0, 0, 0, .45) 46%, transparent 70%);
  }

  .vf-hero-rings {
    -webkit-mask-image: linear-gradient(180deg, #000 20%, transparent 90%);
    mask-image: linear-gradient(180deg, #000 20%, transparent 90%);
  }

  .vf-ring--a {
    width: 132vw;
    height: 58vw;
    right: -34%;
    top: 34%;
    border-color: rgba(196, 178, 255, .1);
  }

  .vf-ring--b { display: none; }

  .vf-title {
    font-size: clamp(56px, 17.5vw, 104px);
    margin-top: 18px;
  }

  .vf-title em { -webkit-text-stroke-width: .8px; }

  .vf-hero-sub { max-width: none; font-size: 15px; }

  .vf-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .vf-meta-item { border-top: 1px solid var(--line); }
  .vf-meta-item:nth-child(-n+2) { border-top: 0; }
  .vf-meta-item:nth-child(odd) { padding-left: 0; border-left: 0; }

  .vf-hero-foot { margin-top: 30px; }
  .vf-scroll-line { width: 52px; }

  .vf-section { padding-block: 92px; }
  .vf-section-head { grid-template-columns: minmax(0, 1fr); gap: 24px; align-items: start; }
  .vf-section-head { padding-top: 46px; }
  .vf-brief { grid-template-columns: 1fr; gap: 32px; padding-top: 46px; }
  .vf-brief-body { font-size: 14px; }
  .vf-brief-body .lead { font-size: 16px; }

  .vf-cards { grid-template-columns: 1fr; }
  .vf-card { border-right: 0; }
  .vf-card:not(:last-child) { border-bottom: 1px solid var(--line); }
  .vf-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .vf-card:nth-child(2n) { border-right: 0; }
  .vf-card { min-height: 0; transform: none !important; }

  .vf-gallery { grid-template-columns: 1fr; gap: 30px; margin-top: 46px; }
  .vf-plate-cap { margin-top: 12px; padding-top: 12px; }

  .vf-spec { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .vf-spec-item:nth-child(2n) { border-right: 0; }
  .vf-spec-item:nth-child(n+3) { border-top: 1px solid var(--line); }

  .vf-cta { padding-block: 92px; }
  .vf-cta-panel { grid-template-columns: 1fr; gap: 32px; align-items: start; padding: 26px 20px 30px; }
  .vf-h2--cta { font-size: clamp(32px, 7.6vw, 46px); }
  .vf-cta-copy { max-width: none; font-size: 14px; }

  .vf-next-panel {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
    margin-top: 46px;
    padding: 24px 20px 30px;
  }
  .vf-next-title { font-size: clamp(28px, 8vw, 42px); }
  .vf-next-body { padding-top: 0; }
  .vf-next-body p { font-size: 14px; }
  .vf-next-body .lead { font-size: 16px; }
  .vf-next-note { letter-spacing: .1em; }

  .vf-cmd { font-size: 11px; }

  .vf-lead { font-size: 14px; }
}

@media (max-width: 420px) {
  .vf-hero-code { display: none; }
  .vf-btn { padding: 14px 16px; font-size: 13.5px; }
  .vf-plate-name { font-size: 12.5px; }
}

/* ==========================================================================
   11. 降低动态
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .vf-page *,
  .vf-page *::before,
  .vf-page *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    transition-delay: 0s !important;
  }

  .vf-page .reveal,
  .vf-page .reveal-load {
    opacity: 1 !important;
    transform: none !important;
  }

  .vf-page .ticker-track,
  .vf-scroll-line::after { animation: none !important; }
  .vf-scroll-line::after { transform: none; opacity: .85; }

  .vf-card:hover,
  .vf-btn:hover,
  .vf-plate:hover .vf-plate-frame img,
  .vf-plate:hover .vf-plate-frame--brand img { transform: none; }
}