/* =========================================================
   丝漉 SluviE — 交互动效层
   滚动驱动舞台 / 鼠标光影 / 卡片聚光 / 磁吸按钮 / 整屏转场 / 光标
   全部在 prefers-reduced-motion 与触屏下降级
   ========================================================= */

/* ---------- 1. 滚动驱动：如佑舞台 ---------- */
.pin {
  position: relative;
  height: 340vh;
  background: var(--white);
  --p: 0;
}
.pin__stage {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100svh;
  overflow: hidden;
  display: flex;
  align-items: center;
}
/* 中心必须是纯白：产品图白底在 3D 变换下无法 multiply，靠白色融进去 */
.pin__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 42% 58% at 68% 52%, #FFFFFF 55%, rgba(255,255,255,0) 100%),
    linear-gradient(calc(120deg + var(--p) * 60deg), #DCEBF8 0%, #F4F8FC 45%, #FFF6CF 100%);
}
.pin__ring {
  position: absolute;
  left: 68%;
  top: 52%;
  width: 62vmin;
  height: 62vmin;
  translate: -50% -50%;
  border-radius: 50%;
  border: 1px solid rgba(24, 120, 200, 0.14);
  rotate: calc(var(--p) * 180deg);
  pointer-events: none;
}
.pin__ring::before {
  content: "";
  position: absolute;
  top: -5px; left: 50%;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 0 0 6px rgba(255, 212, 0, 0.18);
}
.pin__ring--2 { width: 84vmin; height: 84vmin; rotate: calc(var(--p) * -120deg); border-style: dashed; opacity: 0.6; }
.pin__ring--2::before { background: var(--blue); box-shadow: 0 0 0 6px rgba(24,120,200,0.15); }

.pin__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: clamp(24px, 4vw, 64px);
  width: 100%;
}

.pin__steps { position: relative; min-height: 300px; }
.pin__step {
  position: absolute;
  inset: 0 0 auto 0;
  opacity: 0;
  translate: 0 40px;
  filter: blur(6px);
  transition: opacity 0.7s var(--ease-out), translate 0.7s var(--ease-out), filter 0.7s var(--ease-out);
  pointer-events: none;
}
.pin__step.is-on { opacity: 1; translate: 0 0; filter: none; pointer-events: auto; }
.pin__step.is-past { translate: 0 -40px; }

.pin__big {
  font-family: var(--font-display);
  font-size: clamp(64px, 10vw, 148px);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.06em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.pin__big small { font-size: 0.4em; color: var(--blue); margin-left: 4px; letter-spacing: -0.02em; }
.pin__step h3 {
  margin-top: 22px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.pin__step p.pin__desc {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
  max-width: 36ch;
}

.pin__product {
  position: relative;
  height: min(72vh, 640px);
  display: grid;
  place-items: center;
  perspective: 1400px;
}
.pin__turn {
  position: relative;
  height: min(72vh, 640px);
  aspect-ratio: 0.62;
  transform-style: preserve-3d;
  will-change: transform;
}
.pin__turn img {
  position: absolute;
  top: 7%;
  left: 50%;
  height: 86%;
  width: auto;
  max-width: none;
  aspect-ratio: 1 / 1;
  translate: -50% 0;
  object-fit: contain;
  /* 羽化：横向收窄、纵向放宽，贴合瓶身比例，白底不再以硬边矩形出现 */
  -webkit-mask-image: radial-gradient(ellipse 32% 60% at 50% 50%, #000 75%, transparent 100%);
  mask-image: radial-gradient(ellipse 32% 60% at 50% 50%, #000 75%, transparent 100%);
}
/* 扫光：随转动从左到右扫过瓶身 */
.pin__shine {
  position: absolute;
  inset: 10% 26%;
  border-radius: 40% / 12%;
  background: linear-gradient(100deg, transparent 30%, rgba(255,255,255,0.75) 48%, transparent 62%);
  background-size: 300% 100%;
  background-position: calc(110% - var(--p) * 120%) 0;
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.pin__shadow {
  position: absolute;
  bottom: 6%;
  left: 50%;
  width: 22%;
  height: 4%;
  translate: -50% 0;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(14, 40, 70, 0.32), transparent);
  scale: calc(1 - var(--tilt, 0) * 0.3) 1;
}

.pin__meta {
  position: absolute;
  left: 0; right: 0;
  bottom: 28px;
  z-index: 3;
}
.pin__meta-inner { display: flex; align-items: center; gap: 24px; }
.pin__dots { display: flex; gap: 18px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; color: var(--ink-3); }
.pin__dots span { transition: color 0.4s ease; }
.pin__dots span.is-on { color: var(--ink); font-weight: 700; }
.pin__bar { flex: 1; height: 1px; background: var(--line); position: relative; overflow: hidden; }
.pin__bar i { position: absolute; inset: 0; background: var(--blue); transform-origin: left; transform: scaleX(var(--p)); }
.pin__hint { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }

/* ---------- 2. Hero 鼠标光影 + 产品倾斜 ---------- */
.hero { --mx: 70%; --my: 40%; }
.hero__spot {
  position: absolute;
  inset: 0;
  background: radial-gradient(520px circle at var(--mx) var(--my), rgba(79, 208, 240, 0.20), rgba(24, 120, 200, 0.08) 40%, transparent 70%);
  pointer-events: none;
  z-index: 1;
  transition: opacity 0.6s ease;
}
/* 网格在光斑附近变亮 */
.hero__grid-hi {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79, 208, 240, 0.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 208, 240, 0.35) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(260px circle at var(--mx) var(--my), #000, transparent 70%);
  -webkit-mask-image: radial-gradient(260px circle at var(--mx) var(--my), #000, transparent 70%);
  pointer-events: none;
  z-index: 1;
}
.hero__showcase { perspective: 1200px; }
.hero__tilt {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  transform-style: preserve-3d;
  transform: rotateY(var(--ry, 0deg)) rotateX(var(--rx, 0deg));
  transition: transform 0.25s ease-out;
}
.hero__tilt .hero__product--back { translate: 0 0 60px; }
.hero__tilt .hero__statbadge { translate: 0 0 90px; }

/* ---------- 3. 卡片聚光 ---------- */
.fx-spot { position: relative; }
.fx-spot::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(360px circle at var(--sx, 50%) var(--sy, 50%), rgba(24, 120, 200, 0.10), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  z-index: 2;
}
.fx-spot:hover::before { opacity: 1; }
.section--dark .fx-spot::before {
  background: radial-gradient(360px circle at var(--sx, 50%) var(--sy, 50%), rgba(255, 212, 0, 0.14), transparent 60%);
}

/* 磁吸按钮：只用 translate，不和 hover 的 transform 冲突 */
.btn { translate: var(--bx, 0) var(--by, 0); transition-property: transform, box-shadow, background, color, border-color, translate; }

/* ---------- 4. 整屏转场 ---------- */
.curtain {
  position: fixed;
  inset: 0;
  z-index: 20000;
  background: var(--navy-2);
  display: grid;
  place-items: center;
  transform: translateY(100%);
  pointer-events: none;
}
.curtain__logo { width: 132px; filter: brightness(0) invert(1); opacity: 0; transition: opacity 0.3s ease; }
.curtain__bar {
  position: absolute;
  left: 0; bottom: 0;
  height: 3px; width: 100%;
  background: var(--yellow);
  transform-origin: left;
  transform: scaleX(0);
}
.curtain.is-in   { transition: transform 0.6s var(--ease-io); transform: translateY(0); pointer-events: all; }
.curtain.is-in .curtain__logo { opacity: 1; transition-delay: 0.25s; }
.curtain.is-in .curtain__bar { transition: transform 0.6s var(--ease-io) 0.1s; transform: scaleX(1); }
.curtain.is-cover { transform: translateY(0); }
.curtain.is-cover .curtain__logo { opacity: 1; }
.curtain.is-out  { transition: transform 0.75s var(--ease-io) 0.1s; transform: translateY(-100%); }

/* ---------- 5. 自定义光标 ---------- */
.cursor, .cursor-dot {
  position: fixed;
  top: 0; left: 0;
  z-index: 19000;
  pointer-events: none;
  border-radius: 50%;
  translate: -50% -50%;
}
.cursor {
  width: 36px; height: 36px;
  border: 1px solid rgba(24, 120, 200, 0.6);
  transition: width 0.3s var(--ease), height 0.3s var(--ease), background 0.3s ease, border-color 0.3s ease, opacity 0.3s ease;
  mix-blend-mode: difference;
  border-color: rgba(255, 255, 255, 0.8);
}
.cursor-dot { width: 5px; height: 5px; background: var(--yellow); }
.cursor.is-hover { width: 64px; height: 64px; background: rgba(255, 255, 255, 0.9); }
.cursor.is-hidden, .cursor-dot.is-hidden { opacity: 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .pin { height: 300vh; }
  .pin__grid { grid-template-columns: 1fr; gap: 8px; align-content: center; }
  .pin__product { order: -1; height: 40vh; }
  .pin__turn { height: 40vh; }
  .pin__steps { min-height: 230px; }
  .pin__bg { background:
    radial-gradient(ellipse 70% 34% at 50% 30%, #FFFFFF 55%, rgba(255,255,255,0) 100%),
    linear-gradient(calc(120deg + var(--p) * 60deg), #DCEBF8 0%, #F4F8FC 45%, #FFF6CF 100%); }
  .pin__ring { left: 50%; top: 30%; width: 70vmin; height: 70vmin; }
  .pin__ring--2 { width: 92vmin; height: 92vmin; }
  .pin__hint { display: none; }
  .pin__big { font-size: clamp(56px, 18vw, 92px); }
}

@media (hover: none), (pointer: coarse) {
  .cursor, .cursor-dot, .hero__spot, .hero__grid-hi { display: none; }
}

/* 减弱动效：舞台不固定，三段并排静态展示 */
@media (prefers-reduced-motion: reduce) {
  .pin { height: auto; }
  .pin__stage { position: relative; height: auto; padding: 96px 0; }
  .pin__steps { min-height: 0; display: grid; gap: 40px; }
  .pin__step { position: static; opacity: 1; translate: 0 0; filter: none; }
  .pin__meta, .pin__ring, .cursor, .cursor-dot, .curtain, .hero__spot, .hero__grid-hi { display: none; }
  .pin__product { height: 420px; }
}

/* ---------- 6. 文字入场 ----------
   标题：逐字（英文逐词成组）从下方带模糊浮上
   段落：遮罩从左到右扫出 */
.fx-split .word { display: inline-block; white-space: nowrap; }
.fx-split .ch {
  display: inline-block;
  opacity: 0;
  translate: 0 0.55em;
  rotate: 6deg;
  filter: blur(6px);
  transition:
    opacity 0.7s var(--ease-out),
    translate 0.9s var(--ease-out),
    rotate 0.9s var(--ease-out),
    filter 0.7s var(--ease-out);
  transition-delay: calc(var(--i) * 32ms + 80ms);
}
.fx-split.is-in .ch { opacity: 1; translate: 0 0; rotate: 0deg; filter: none; }
.fx-split.is-instant .ch { transition: none; }

/* 滚动舞台里的标题：跟着当前步骤播放 */
.pin__step:not(.is-on) .fx-split .ch { opacity: 0; translate: 0 0.55em; filter: blur(6px); transition-delay: 0s; }
.pin__step .pin__big {
  transition: translate 0.9s var(--ease-out), letter-spacing 0.9s var(--ease-out);
  letter-spacing: -0.02em;
}
.pin__step.is-on .pin__big { letter-spacing: -0.06em; }

.fx-wipe {
  -webkit-mask-image: linear-gradient(90deg, #000 40%, transparent 60%);
  mask-image: linear-gradient(90deg, #000 40%, transparent 60%);
  -webkit-mask-size: 260% 100%;
  mask-size: 260% 100%;
  -webkit-mask-position: 100% 0;
  mask-position: 100% 0;
  transition: -webkit-mask-position 1.4s var(--ease-out) 0.25s, mask-position 1.4s var(--ease-out) 0.25s;
}
.fx-wipe.is-in { -webkit-mask-position: 0 0; mask-position: 0 0; }
.pin__step:not(.is-on) .fx-wipe { -webkit-mask-position: 100% 0; mask-position: 100% 0; transition-delay: 0s; }

@media (prefers-reduced-motion: reduce) {
  .fx-split .ch { opacity: 1; translate: 0 0; rotate: 0deg; filter: none; transition: none; }
  .fx-wipe { -webkit-mask-image: none; mask-image: none; }
}

/* ---------- 7. 视频背景（核心科技） ----------
   文件放在 video/tech.mp4（可再加 tech.webm）；没有文件时保持纯色底 */
.has-video { position: relative; overflow: hidden; isolation: isolate; }
.bgvideo { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.bgvideo__media {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.bgvideo.is-ready .bgvideo__media { opacity: 1; }
/* 压暗层：保证白字和黄色数字始终清晰，左侧文字区更暗 */
.bgvideo__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(11, 30, 51, 0.92) 0%, rgba(11, 30, 51, 0.78) 45%, rgba(11, 30, 51, 0.45) 100%),
    linear-gradient(0deg, rgba(11, 30, 51, 0.6), transparent 30%);
}
.has-video > .wrap { position: relative; z-index: 1; }

@media (max-width: 900px) {
  .bgvideo__veil { background: rgba(11, 30, 51, 0.8); }
}
@media (prefers-reduced-motion: reduce) {
  .bgvideo__media { display: none; }
}
/* 核心科技：去掉右侧产品图后，单栏文字压在视频左侧 */
#tech .tech__grid { grid-template-columns: minmax(0, 720px); }

/* 新版产品图自带倒影，不再叠加代码画的接触阴影 */
.pin__shadow { display: none; }

/* =========================================================
   如佑舞台 · 三段画面
   01 标注引线 / 02 报告原件展开 / 03 双品并列 + 润滑+消毒
   底色随段落变化；瓶子正后方保留白色柔光（产品图为白底照片）
   ========================================================= */
.pin__stage { background-color: #DCEBF8; transition: background-color 0.9s ease; }
.pin[data-step="1"] .pin__stage { background-color: #F1E9DA; }
.pin[data-step="2"] .pin__stage { background-color: #FFEFAE; }
.pin__bg {
  background:
    radial-gradient(ellipse 34% 52% at 70% 52%, #FFFFFF 58%, rgba(255,255,255,0) 100%),
    linear-gradient(135deg, rgba(255,255,255,0.55) 0%, rgba(255,255,255,0) 55%);
  transition: background 0.9s ease;
}
/* 第三段两只产品并排，柔光拉宽 */
.pin[data-step="2"] .pin__bg {
  background:
    radial-gradient(ellipse 40% 50% at 70% 54%, #FFFFFF 60%, rgba(255,255,255,0) 100%),
    linear-gradient(135deg, rgba(255,255,255,0.55) 0%, rgba(255,255,255,0) 55%);
}
.pin__ring { border-color: rgba(14, 26, 38, 0.10); }

.pin__product { position: relative; }
.pin__turn { z-index: 2; transition: translate 0.9s var(--ease-out); }
.pin__layer { position: absolute; inset: 0; pointer-events: none; }

/* ---- 01 · 标注 ---- */
.pin__layer--note { z-index: 3; }
.pin__dot {
  position: absolute; left: 51%; top: 57%;
  width: 12px; height: 12px; translate: -50% -50%;
  border-radius: 50%; background: var(--blue);
  box-shadow: 0 0 0 6px rgba(24,120,200,0.18);
  animation: pip 2.4s ease-out infinite;
}
.pin__lead {
  position: absolute; left: 52%; top: 57%;
  width: 24%; height: 1px; background: var(--ink);
  transform-origin: left; transform: scaleX(0);
  transition: transform 0.7s var(--ease-out) 0.15s;
}
.pin__tag {
  position: absolute; left: 77%; top: 57%; translate: 0 -50%;
  display: grid; gap: 2px; padding: 12px 16px;
  background: var(--white); border-radius: 12px;
  box-shadow: 0 18px 40px -20px rgba(14,26,38,0.35);
  opacity: 0; transition: opacity 0.5s ease 0.5s, translate 0.6s var(--ease-out) 0.5s;
  white-space: nowrap;
}
.pin__tag b { font-family: var(--font-display); font-size: 26px; font-weight: 900; letter-spacing: -0.03em; color: var(--ink); line-height: 1; }
.pin__tag small { font-size: 11.5px; color: var(--ink-3); }
.pin__dot, .pin__lead, .pin__tag { opacity: 0; }
.pin[data-step="0"] .pin__dot,
.pin[data-step="0"] .pin__tag { opacity: 1; }
.pin[data-step="0"] .pin__lead { opacity: 1; transform: scaleX(1); }

/* ---- 02 · 报告原件 ---- */
.pin__layer--reports { z-index: 1; }
.pin__doc {
  position: absolute; top: 12%; width: 31%; margin: 0;
  background: #fff; border-radius: 6px; overflow: hidden;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06), 0 30px 50px -26px rgba(14,26,38,0.45);
  opacity: 0;
  transition: opacity 0.6s ease, translate 0.9s var(--ease-out), rotate 0.9s var(--ease-out);
}
.pin__doc img { width: 100%; height: auto; display: block; }
.pin__doc figcaption {
  position: absolute; left: 50%; bottom: 10px; translate: -50% 0;
  padding: 4px 10px; border-radius: 100px;
  background: var(--navy); color: var(--white);
  font-size: 11px; font-weight: 600; white-space: nowrap;
}
.pin__doc--l { left: 0;  translate: 60% 8%;  rotate: 0deg; }
.pin__doc--r { right: 0; translate: -60% 8%; rotate: 0deg; }
.pin[data-step="1"] .pin__doc { opacity: 1; }
.pin[data-step="1"] .pin__doc--l { translate: 0 0; rotate: -7deg; transition-delay: 0.1s; }
.pin[data-step="1"] .pin__doc--r { translate: 0 0; rotate: 6deg;  transition-delay: 0.22s; }

/* ---- 03 · 双品 + 润滑+消毒 ---- */
.pin__layer--duo { z-index: 1; }
.pin__mini {
  position: absolute; right: 2%; bottom: 9%;
  height: 66%; width: auto; aspect-ratio: 1 / 1;
  -webkit-mask-image: radial-gradient(ellipse 36% 58% at 50% 50%, #000 72%, transparent 100%);
  mask-image: radial-gradient(ellipse 36% 58% at 50% 50%, #000 72%, transparent 100%);
  opacity: 0; translate: 40% 0;
  transition: opacity 0.6s ease, translate 0.9s var(--ease-out);
}
.pin[data-step="2"] .pin__mini { opacity: 1; translate: 0 0; transition-delay: 0.1s; }
.pin[data-step="2"] .pin__turn { translate: -20% 0; }

.pin__layer--chips {
  z-index: 3; display: flex; justify-content: center; align-items: center; gap: 12px;
  inset: 4% 0 auto 0;
}
.pin__chip {
  padding: 9px 20px; border-radius: 100px;
  background: var(--blue); color: var(--white);
  font-size: 15px; font-weight: 700; letter-spacing: 0.04em;
  box-shadow: 0 12px 26px -14px rgba(24,120,200,0.8);
}
.pin__chip--y { background: var(--navy); color: var(--yellow); box-shadow: 0 12px 26px -14px rgba(11,30,51,0.8); }
.pin__plus { font-family: var(--font-display); font-size: 26px; font-weight: 900; color: var(--ink); }
.pin__chip, .pin__plus { opacity: 0; translate: 0 -14px; transition: opacity 0.5s ease, translate 0.7s var(--ease-out); }
.pin[data-step="2"] .pin__chip, .pin[data-step="2"] .pin__plus { opacity: 1; translate: 0 0; }
.pin[data-step="2"] .pin__plus { transition-delay: 0.12s; }
.pin[data-step="2"] .pin__chip--y { transition-delay: 0.24s; }

@media (max-width: 900px) {
  .pin__bg, .pin[data-step="2"] .pin__bg {
    background: radial-gradient(ellipse 70% 32% at 50% 28%, #FFFFFF 58%, rgba(255,255,255,0) 100%);
  }
  .pin__tag { left: auto; right: 0; padding: 8px 12px; }
  .pin__tag b { font-size: 18px; }
  .pin__lead { width: 14%; }
  .pin__chip { padding: 6px 14px; font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  .pin__layer { display: none; }
}

/* =========================================================
   如佑舞台 · 视频模式（序列帧加载成功后加上 .pin--seq）
   视频画面铺满舞台，滚动逐帧播放；静态版的底色、圆环、产品层全部隐藏
   ========================================================= */
.pin__seq {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  pointer-events: none;
}
.pin:not(.pin--seq) .pin__seq { display: none; }
.pin--seq .pin__stage,
.pin--seq[data-step] .pin__stage { background-color: #D9DAE1; }
.pin--seq .pin__bg,
.pin--seq .pin__ring { display: none; }
.pin--seq .pin__product { visibility: hidden; }
.pin--seq .pin__grid { position: relative; z-index: 2; }
.pin--seq .pin__meta { z-index: 2; }

@media (max-width: 900px) {
  /* 手机：视频占上方 60%，文字放在下方 */
  .pin--seq .pin__product { display: none; }
  .pin--seq .pin__grid { align-self: flex-end; padding-bottom: 72px; }
}

/* =========================================================
   首屏 · 液态丝绸（hero-silk.js 成功后加上 .hero--silk）
   没有 WebGL 时：深藏青底 + 两团柔光，作为静态版
   ========================================================= */
.hero {
  background:
    radial-gradient(ellipse 38% 46% at 74% 40%, rgba(255, 176, 46, 0.22), transparent 70%),
    radial-gradient(ellipse 44% 52% at 62% 66%, rgba(24, 120, 200, 0.32), transparent 72%),
    var(--navy-2);
}
.hero__silk {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
}
/* 文字一侧再压一层暗，保证白字清晰 */
.hero__veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(7, 21, 37, 0.78) 0%, rgba(7, 21, 37, 0.45) 32%, rgba(7, 21, 37, 0) 58%);
}
.hero__inner, .hero__meta, .hero__hint { position: relative; z-index: 2; }
.hero__meta { position: absolute; }
.hero__inner { grid-template-columns: minmax(0, 640px); }
.hero__copy { max-width: 640px; }

.hero__hint {
  position: absolute;
  right: var(--pad);
  bottom: 72px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.42);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transition: opacity 1.2s ease 2.4s;
  pointer-events: none;
}
.hero__hint::before {
  content: "";
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: inset 0 0 0 4px rgba(7, 21, 37, 1), inset 0 0 0 5px rgba(255, 212, 0, 0.8);
  animation: hintPulse 2.4s ease-out infinite;
}
@keyframes hintPulse {
  0%   { box-shadow: inset 0 0 0 4px rgba(7,21,37,1), inset 0 0 0 5px rgba(255,212,0,0.8), 0 0 0 0 rgba(255,212,0,0.35); }
  100% { box-shadow: inset 0 0 0 4px rgba(7,21,37,1), inset 0 0 0 5px rgba(255,212,0,0.8), 0 0 0 14px rgba(255,212,0,0); }
}
.hero--silk .hero__hint { opacity: 1; }
.hero--silk { cursor: crosshair; }
.hero--silk a, .hero--silk button { cursor: pointer; }

@media (hover: none), (pointer: coarse) {
  .hero__hint { display: none; }
  .hero--silk { cursor: auto; }
}

@media (max-width: 900px) {
  /* 手机：液体在上方，文字落在下方 */
  .hero { min-height: 100svh; padding-bottom: 72px; justify-content: flex-end; flex-direction: column; }
  .hero__inner { margin-top: auto; }
  .hero__veil { background: linear-gradient(0deg, rgba(7, 21, 37, 0.94) 0%, rgba(7, 21, 37, 0.7) 50%, rgba(7, 21, 37, 0) 74%); }
  .hero__meta { position: relative; margin-top: 32px; }
}