/* 页面微调：提高第二屏文字玻璃层透明度。 */
html,
body,
button,
input,
textarea,
select,
.statement .statement-content h2 {
  font-family: "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* 导航仅属于首页首屏，滚动时随页面自然离开。 */
.site-header,
.site-header.is-scrolled {
  position: absolute;
  top: 8px;
  justify-content: flex-start;
  gap: clamp(42px, 4vw, 50px);
  border: 0;
  border-radius: 0;
  background: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  box-shadow: none;
}

.site-header .desktop-nav {
  margin-left: 0;
  gap: clamp(32px, 3vw, 40px);
}

.statement .statement-content h2 span {
  color: #ffffff;
}

.site-header .brand {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 9px;
  line-height: 1;
}

.site-header .brand-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.site-header .brand-avatar {
  display: block;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 66%;
  border: 1px solid rgba(255, 255, 255, 0.62);
  box-shadow: 0 5px 14px rgba(0, 0, 0, 0.22);
}

.site-header .brand-logo {
  display: block;
  width: clamp(88px, 7.5vw, 104px);
  height: auto;
  max-width: none;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.22));
}

@media (max-width: 620px) {
  .site-header .brand-logo {
    width: 80px;
  }
}

.site-header .brand strong {
  font-size: 15px;
  font-weight: 680;
  letter-spacing: -0.02em;
}

.site-header .brand small {
  margin-top: 5px;
  font-size: 7px;
  font-weight: 550;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.62);
}


.statement .statement-content {
  width: min(88vw, 590px);
  padding: 22px 28px 24px;
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(2, 7, 9, 0.16);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
  backdrop-filter: blur(8px) saturate(120%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16), 0 20px 50px rgba(0, 0, 0, 0.16);
}

.statement .statement-content h2 {
  font-size: clamp(30px, 4.1vw, 46px);
  font-weight: 650;
  line-height: 1.12;
  letter-spacing: -0.055em;
}

.statement .statement-content > p {
  margin-top: 18px;
  font-size: 14px;
  letter-spacing: 0.015em;
  color: rgba(245, 245, 247, 0.72);
}

@media (max-width: 620px) {
  .statement .statement-content {
    width: min(90vw, 460px);
    padding: 20px 18px 22px;
  }
}

/* 首页视频：按真实时长播放，并使用更柔和的交叉溶解。 */
.hero .hero-video {
  inset: 0;
  width: 100%;
  height: 100%;
  transform: none;
  transition: opacity 2.4s cubic-bezier(0.45, 0, 0.2, 1);
}

.hero .hero-video.is-active {
  transform: none;
}

.hero .scroll-hint {
  color: #ffffff;
}

/* 最终移动端覆盖：三列作品预览与横向联系入口。 */
@media (max-width: 620px) {
  .portfolio-collection { row-gap: 20px; padding: 38px 12px 48px; }
  .collection-heading.collection-heading--compact { padding-bottom: 16px; }
  .collection-grid--15, .collection-grid--27, .collection-grid--24 { column-count: 3; column-gap: 8px; }
  .collection-grid > .collection-card { margin-bottom: 8px; padding: 3px; box-shadow: 0 5px 14px rgba(23, 23, 25, 0.12); }
  .collection-copyright { margin-top: 12px; }
  .contact-hub { padding: 52px 12px 56px; }
  .contact-hub__links { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 34px; }
  .contact-hub__symbol { width: 42px; height: 42px; margin-bottom: 8px; border-width: 1.5px; }
  .contact-hub__symbol--qq { border-radius: 13px; font-size: 23px; }
  .contact-hub__symbol--mail { border-radius: 12px; font-size: 21px; }
  .contact-hub__label { font-size: 12px; }
  .contact-hub__detail { margin-top: 5px; font-size: 9px; line-height: 1.3; }
}

/* 最终主题覆盖：第 2 至第 6 页统一为白色底片。 */
body {
  background: #ffffff;
  color: #171719;
}

.portfolio-collections,
.feature-wrap,
.quote,
.about,
.contact,
footer {
  background: #ffffff;
  color: #171719;
}

.collections-kicker,
.collection-heading > p,
.collection-meta > p,
.collection-heading.collection-heading--compact > p {
  color: rgba(23, 23, 25, 0.52);
}

.collections-intro > p:last-child,
.collection-heading span,
.collection-meta > span,
.contact > p:not(.eyebrow),
.about-copy > p:not(.eyebrow) {
  color: rgba(23, 23, 25, 0.62);
}

.portfolio-collection {
  border-top-color: rgba(23, 23, 25, 0.18);
}

.collection-card {
  background: #eef0f1;
}

.quote {
  background: #ffffff;
}

.quote blockquote {
  text-shadow: none;
}

.quote .quote-by {
  background: transparent;
  color: rgba(23, 23, 25, 0.58);
  text-shadow: none;
}

footer {
  border-top-color: rgba(23, 23, 25, 0.16);
  color: rgba(23, 23, 25, 0.52);
}

/* 最终移动端覆盖：三列作品预览与横向联系入口。 */
@media (max-width: 620px) {
  .portfolio-collection {
    row-gap: 20px;
    padding: 38px 12px 48px;
  }

  .collection-heading.collection-heading--compact {
    padding-bottom: 16px;
  }

  .collection-grid--15,
  .collection-grid--27,
  .collection-grid--24 {
    column-count: 3;
    column-gap: 8px;
  }

  .collection-grid > .collection-card {
    margin-bottom: 8px;
    padding: 3px;
    box-shadow: 0 5px 14px rgba(23, 23, 25, 0.12);
  }

  .collection-copyright {
    margin-top: 12px;
  }

  .contact-hub {
    padding: 52px 12px 56px;
  }

  .contact-hub__links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin-top: 34px;
  }

  .contact-hub__symbol {
    width: 42px;
    height: 42px;
    margin-bottom: 8px;
    border-width: 1.5px;
  }

  .contact-hub__symbol--qq {
    border-radius: 13px;
    font-size: 23px;
  }

  .contact-hub__symbol--mail {
    border-radius: 12px;
    font-size: 21px;
  }

  .contact-hub__label {
    font-size: 12px;
  }

  .contact-hub__detail {
    margin-top: 5px;
    font-size: 9px;
    line-height: 1.3;
  }
}

/* 移动端作品集和联系方式：三列预览优先，保持原始画幅。 */
@media (max-width: 620px) {
  .portfolio-collection {
    row-gap: 20px;
    padding: 38px 12px 48px;
  }

  .collection-heading.collection-heading--compact {
    padding-bottom: 16px;
  }

  .collection-grid--15,
  .collection-grid--27,
  .collection-grid--24 {
    column-count: 3;
    column-gap: 8px;
  }

  .collection-grid > .collection-card {
    margin-bottom: 8px;
    padding: 3px;
    box-shadow: 0 5px 14px rgba(23, 23, 25, 0.12);
  }

  .collection-copyright {
    margin-top: 12px;
  }

  .contact-hub {
    padding: 52px 12px 56px;
  }

  .contact-hub__links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin-top: 34px;
  }

  .contact-hub__symbol {
    width: 42px;
    height: 42px;
    margin-bottom: 8px;
    border-width: 1.5px;
  }

  .contact-hub__symbol--qq {
    border-radius: 13px;
    font-size: 23px;
  }

  .contact-hub__symbol--mail {
    border-radius: 12px;
    font-size: 21px;
  }

  .contact-hub__label {
    font-size: 12px;
  }

  .contact-hub__detail {
    margin-top: 5px;
    font-size: 9px;
    line-height: 1.3;
  }
}

/* 末页联系入口：借鉴参考页的大留白和居中入口节奏，使用本站自己的文字与图形。 */
.contact-hub {
  min-height: 0;
  padding: clamp(42px, 5vw, 72px) 28px clamp(56px, 6vw, 88px);
  display: grid;
  place-items: start center;
  background: #ffffff;
  color: #171719;
}

.contact-hub__inner {
  width: min(100%, 1180px);
  text-align: center;
}

.contact-hub__kicker {
  margin: 10px 0 0;
  color: rgba(23, 23, 25, 0.42);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
}

.contact-hub h2 {
  margin: 0;
  font-size: clamp(32px, 3.4vw, 46px);
  font-weight: 350;
  letter-spacing: -0.055em;
}

.contact-hub__links {
  margin: clamp(40px, 6vw, 72px) auto 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 6vw, 92px);
}

.contact-hub__item {
  display: grid;
  justify-items: center;
  align-content: start;
  min-width: 0;
  color: #171719;
  transition: opacity 180ms ease, transform 180ms ease;
}

.contact-hub__item:hover,
.contact-hub__item:focus-visible {
  color: #171719;
  opacity: 0.62;
  transform: translateY(-3px);
  outline: none;
}

.contact-hub__symbol {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  border: 2px solid currentColor;
  border-radius: 50%;
  font-size: 23px;
  font-weight: 600;
  line-height: 1;
}

.contact-hub__symbol--douyin {
  overflow: hidden;
  border-color: #171719;
  background: #171719;
}

.contact-hub__symbol--douyin img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: 50% 68%;
}

.contact-hub__symbol--qq {
  border-radius: 17px;
  font-family: Georgia, serif;
  font-size: 30px;
  font-weight: 700;
}

.contact-hub__symbol--mail {
  border-radius: 15px;
  font-size: 28px;
}

.contact-hub__label {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.contact-hub__detail {
  max-width: 100%;
  margin-top: 7px;
  overflow-wrap: anywhere;
  color: rgba(23, 23, 25, 0.5);
  font-size: 11px;
  letter-spacing: 0.015em;
}

.site-footer {
  padding: 22px clamp(20px, 4vw, 56px);
}

@media (max-width: 620px) {
  .contact-hub {
    min-height: auto;
    padding: 56px 24px 72px;
  }

  .contact-hub__links {
    grid-template-columns: 1fr;
    gap: 42px;
    margin-top: 64px;
  }

  .contact-hub__symbol {
    width: 52px;
    height: 52px;
    margin-bottom: 12px;
  }

  .site-footer {
    text-align: center;
  }
}

/* 作品集灯箱：保留照片原比例，并在当前类别内前后浏览。 */
body.lightbox-open {
  overflow: hidden;
}

.collection-card[role="button"] {
  cursor: zoom-in;
  outline: none;
}

.collection-card[role="button"]:focus-visible {
  outline: 2px solid #171719;
  outline-offset: 4px;
}

.portfolio-lightbox {
  inset: 0;
  width: 100vw;
  max-width: none;
  height: 100vh;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: #ffffff;
  color: #171719;
  overflow: hidden;
}

@supports (height: 100dvh) {
  .portfolio-lightbox {
    height: 100dvh;
  }
}

.portfolio-lightbox::backdrop {
  background: rgba(255, 255, 255, 0.94);
}

.lightbox-stage {
  position: relative;
  width: 100%;
  height: 100%;
  padding: clamp(52px, 6vw, 78px) clamp(56px, 7vw, 104px) clamp(24px, 3vw, 40px);
  display: grid;
  place-items: center;
}

.lightbox-figure {
  width: 100%;
  height: 100%;
  margin: 0;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 14px;
  place-items: center;
}

.lightbox-image {
  display: block;
  max-width: min(88vw, 1600px);
  max-height: calc(100vh - 126px);
  width: auto;
  height: auto;
  object-fit: contain;
  box-shadow: 0 20px 50px rgba(23, 23, 25, 0.18);
}

@supports (height: 100dvh) {
  .lightbox-image {
    max-height: calc(100dvh - 126px);
  }
}

.lightbox-caption {
  width: min(88vw, 1600px);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(23, 23, 25, 0.58);
}

.lightbox-close,
.lightbox-nav {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(23, 23, 25, 0.25);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.82);
  color: #171719;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  cursor: pointer;
}

.lightbox-close:hover,
.lightbox-close:focus-visible,
.lightbox-nav:hover,
.lightbox-nav:focus-visible {
  background: rgba(23, 23, 25, 0.08);
  border-color: rgba(23, 23, 25, 0.55);
  outline: none;
}

.lightbox-close {
  top: 18px;
  right: 18px;
  font-size: 25px;
  font-weight: 200;
  line-height: 1;
}

.lightbox-nav {
  top: 50%;
  transform: translateY(-50%);
  font-size: 30px;
  font-weight: 200;
  line-height: 1;
}

.lightbox-nav--prev {
  left: 18px;
}

.lightbox-nav--next {
  right: 18px;
}

.lightbox-nav[hidden] {
  display: none;
}

@media (max-width: 620px) {
  .lightbox-stage {
    padding: 56px 16px 20px;
  }

  .lightbox-image {
    max-width: 94vw;
    max-height: calc(100vh - 118px);
  }

  .lightbox-caption {
    width: 94vw;
  }

  .lightbox-close,
  .lightbox-nav {
    width: 38px;
    height: 38px;
  }

  .lightbox-close {
    top: 10px;
    right: 10px;
  }

  .lightbox-nav--prev {
    left: 8px;
  }

  .lightbox-nav--next {
    right: 8px;
  }
}

/* 合集标题区贴近区块顶部，并采用更克制的字号层级。 */
.portfolio-collections {
  padding-top: clamp(42px, 5vw, 64px);
}

.collections-intro {
  margin: 0 auto clamp(44px, 6vw, 76px);
}

.collections-intro h2 {
  margin: 10px 0 12px;
  font-size: clamp(30px, 2.6vw, 34px);
  font-weight: 300;
  letter-spacing: -0.055em;
}

.collections-intro > p:last-child {
  font-size: 12px;
}

.hero .hero-copy h1,
.hero .hero-copy .proximity-letter {
  color: #ffffff;
}

/* 取消各页面区块的入场动画，滚动时直接呈现内容。 */
.reveal,
.reveal.visible,
.hero-item {
  opacity: 1;
  transform: none;
  transition: none;
  animation: none;
}

/* 合集标题区贴近区块顶部，并采用更克制的字号层级。 */
.portfolio-collections {
  padding-top: clamp(42px, 5vw, 64px);
}

.collections-intro {
  margin: 0 auto clamp(44px, 6vw, 76px);
}

.collections-intro h2 {
  margin: 10px 0 12px;
  font-size: clamp(30px, 2.6vw, 34px);
  font-weight: 300;
  letter-spacing: -0.055em;
}

.collections-intro > p:last-child {
  font-size: 12px;
}

/* 全站内容底色统一为白色；首屏视频与作品图片作为影像内容保留。 */
body,
.portfolio-collections,
.about,
.contact,
footer,
.quote {
  background: #ffffff;
  color: #171719;
}

.portfolio-collections {
  color: #171719;
}

.collections-kicker,
.collection-heading > p,
.collection-meta > p,
.collection-heading.collection-heading--compact > p {
  color: rgba(23, 23, 25, 0.52);
}

.collections-intro > p:last-child,
.collection-heading span,
.collection-meta > span {
  color: rgba(23, 23, 25, 0.64);
}

.portfolio-collection {
  border-top-color: rgba(23, 23, 25, 0.18);
}

.collection-card {
  background: #eef0f1;
}

.quote {
  background: #ffffff;
  color: #171719;
}

.quote blockquote {
  text-shadow: none;
}

.quote .quote-by {
  background: transparent;
  color: rgba(23, 23, 25, 0.58);
  text-shadow: none;
}

.about {
  color: #171719;
}

.contact > p:not(.eyebrow),
.about-copy > p:not(.eyebrow) {
  color: rgba(23, 23, 25, 0.62);
}

.contact-button {
  border-color: rgba(23, 23, 25, 0.2);
  background: rgba(255, 255, 255, 0.78);
  color: #171719;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92), 0 10px 24px rgba(23, 23, 25, 0.1);
}

footer {
  border-top-color: rgba(23, 23, 25, 0.16);
  color: rgba(23, 23, 25, 0.52);
}

footer a:hover {
  color: #171719;
}

/* 白色底片：页面置于浅灰浏览器底色之上，影像作为画布内的内容呈现。 */
html {
  background: #e9eaeb;
}

body {
  background: #ffffff;
  box-shadow: 0 0 0 3px #ffffff, 0 0 0 4px rgba(23, 23, 25, 0.08);
}

main,
footer {
  background: #ffffff;
}

/* 首屏之后的五个内容页面统一使用白色背景。 */
.portfolio-collections,
.feature-wrap,
.quote,
.about,
.contact {
  background: #ffffff;
}

@media (min-width: 621px) {
  body {
    margin: 4px;
  }

  .hero {
    height: calc(100vh - 8px);
    min-height: calc(100vh - 8px);
    border-radius: 10px 10px 0 0;
  }
}

.hero::after {
  background: transparent;
}

.hero .hero-copy {
  width: 100%;
  margin-top: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  justify-self: stretch;
}

.hero .hero-copy h1 {
  font-family: "PingFang TC", "Hiragino Sans CNS", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  font-size: clamp(34px, 4.2vw, 52px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.065em;
}

.hero .hero-copy h1[data-variable-proximity] {
  cursor: default;
  font-variation-settings: "wght" 700;
  transform: skewX(-8deg);
  transform-origin: center center;
}

.hero .hero-title-image {
  display: block;
  width: clamp(152px, 13.5vw, 192px);
  max-width: 44vw;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
}

.hero .hero-copy .proximity-letter {
  --proximity: 0;
  display: inline-block;
  min-width: 0.9em;
  transform: translateY(calc(var(--proximity) * -0.055em)) scale(calc(1 + var(--proximity) * 0.13));
  transform-origin: center bottom;
  font-weight: calc(700 + var(--proximity) * 220);
  font-variation-settings: "wght" calc(700 + var(--proximity) * 220);
  text-shadow: 0 calc(var(--proximity) * 0.12em) calc(var(--proximity) * 0.42em) rgba(255, 255, 255, calc(var(--proximity) * 0.32));
  transition: transform 160ms ease-out, font-weight 160ms ease-out, text-shadow 160ms ease-out;
  will-change: transform, font-weight;
}

@media (prefers-reduced-motion: reduce) {
  .hero .hero-copy .proximity-letter {
    transition: none;
  }
}

/* 三类作品合集：以不同节奏的图像网格承载每一组叙事。 */
.portfolio-collections {
  padding: clamp(82px, 11vw, 148px) 0 0;
  background: #050607;
}

.collections-intro {
  max-width: 620px;
  margin: 0 auto clamp(70px, 10vw, 132px);
  text-align: center;
}

.collections-kicker,
.collection-heading > p {
  margin: 0;
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.48);
}

.collections-intro h2 {
  margin: 14px 0 16px;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.075em;
}

.collections-intro > p:last-child {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 15px;
  line-height: 1.6;
}

.portfolio-collection {
  display: grid;
  grid-template-columns: minmax(150px, 18%) minmax(0, 82%);
  grid-template-rows: auto;
  align-items: start;
  column-gap: clamp(24px, 4vw, 72px);
  width: 100%;
  max-width: none;
  height: auto;
  min-height: 100vh;
  margin: 0;
  padding: clamp(58px, 7vw, 112px) clamp(20px, 4.5vw, 76px);
  overflow: visible;
  border-top: 1px solid #d9d9da;
  background: #ffffff;
  color: #171719;
}

@supports (height: 100dvh) {
  .portfolio-collection {
    height: auto;
    min-height: 100dvh;
  }
}

.portfolio-collection + .portfolio-collection {
  margin-top: 0;
  border-top: clamp(12px, 1.4vw, 18px) solid #e4e4e6;
}

.collection-heading {
  display: grid;
  grid-template-columns: minmax(132px, 0.7fr) 2fr;
  gap: 22px;
  align-items: start;
  margin-bottom: 30px;
}

.collection-heading h3 {
  margin: 0;
  font-size: clamp(28px, 3.5vw, 46px);
  font-weight: 610;
  line-height: 1;
  letter-spacing: -0.065em;
}

.collection-heading span {
  display: block;
  margin-top: 11px;
  color: rgba(255, 255, 255, 0.57);
  font-size: 13px;
  line-height: 1.45;
}

.collection-heading.collection-heading--compact {
  display: flex;
  position: sticky;
  top: 28px;
  align-items: flex-start;
  margin: 0;
  padding: 0 clamp(18px, 2vw, 34px) 0 0;
  border-right: 1px solid #dddddf;
  background: #ffffff;
}

.portfolio-collection .collection-meta > p {
  font-size: clamp(20px, 2vw, 32px);
  font-weight: 520;
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: #171719;
}

.portfolio-collection .collection-meta > span {
  max-width: 220px;
  margin-top: 16px;
  font-size: clamp(10px, 0.9vw, 12px);
  line-height: 1.65;
  letter-spacing: 0.02em;
  color: rgba(23, 23, 25, 0.62);
}

.portfolio-collection .collection-meta > .collection-meta__english {
  margin-top: 8px;
  color: rgba(23, 23, 25, 0.42);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.4;
}

.portfolio-collection .collection-meta > .collection-meta__english + span {
  margin-top: 8px;
}

.collection-meta > p,
.collection-heading.collection-heading--compact > p {
  margin: 0;
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.48);
}

.collection-meta > span {
  margin-top: 9px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 10px;
}

.collection-grid {
  display: block;
  column-count: 3;
  column-gap: clamp(14px, 1.7vw, 26px);
  min-width: 0;
  min-height: 0;
  height: auto;
  padding: 0;
  overflow: visible;
  background: #ffffff;
}

.collection-grid--15 {
  column-count: 4;
}

.collection-grid--27 {
  column-count: 4;
}

.collection-grid--24 {
  column-count: 4;
}

.collection-grid > .collection-card {
  display: inline-block;
  width: 100%;
  margin: 0 0 clamp(14px, 1.7vw, 26px);
  min-width: 0;
  min-height: 0;
  vertical-align: top;
  break-inside: avoid;
  page-break-inside: avoid;
  overflow: hidden;
  padding: clamp(6px, 0.7vw, 10px);
  background: #ffffff;
  box-shadow: 0 0 0 1px rgba(23, 23, 25, 0.1), 0 8px 24px rgba(23, 23, 25, 0.055);
}

.collection-card img {
  display: block;
  width: 100%;
  height: auto;
  min-width: 0;
  min-height: 0;
  max-width: 100%;
  overflow: hidden;
  border-radius: 0;
  background: #ffffff;
  object-fit: contain;
}

.collection-copyright {
  display: grid;
  gap: 4px;
  margin: clamp(10px, 1.4vw, 18px) 0 0;
  color: rgba(23, 23, 25, 0.5);
  font-size: 10px;
  line-height: 1.35;
  text-align: center;
}

.collection-copyright span:last-child {
  color: rgba(23, 23, 25, 0.38);
  font-size: 9px;
  letter-spacing: 0.12em;
}

@media (max-width: 1100px) {
  .collection-grid--27,
  .collection-grid--24 {
    column-count: 3;
  }
}

@media (max-width: 820px) {
  .portfolio-collections {
    padding-right: 0;
    padding-left: 0;
  }

  .portfolio-collection {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    row-gap: 28px;
    padding: 44px 18px 58px;
  }

  .collection-heading.collection-heading--compact {
    position: static;
    padding: 0 0 22px;
    border-right: 0;
    border-bottom: 1px solid #dddddf;
  }

  .portfolio-collection .collection-meta > p {
    font-size: clamp(22px, 7vw, 30px);
  }

  .portfolio-collection .collection-meta > span {
    margin-top: 8px;
    font-size: 10px;
    line-height: 1.4;
  }

  .collection-grid--15,
  .collection-grid--27 {
    column-count: 2;
  }

  .collection-grid--24 {
    column-count: 2;
  }
}

@media (max-width: 480px) {
  .collection-grid--15,
  .collection-grid--27,
  .collection-grid--24 {
    column-count: 1;
  }
}

/* 第二页：不再漂浮的全量摄影相册，按原始画幅瀑布流展示。 */
.all-photo-album {
  padding: clamp(82px, 11vw, 148px) clamp(18px, 5vw, 72px);
  background: #050607;
}

.album-heading {
  max-width: 1320px;
  margin: 0 auto clamp(38px, 5vw, 66px);
}

.album-heading > p {
  margin: 0 0 13px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.18em;
}

.album-heading h2 {
  margin: 0;
  font-size: clamp(42px, 6vw, 76px);
  font-weight: 620;
  line-height: 0.98;
  letter-spacing: -0.075em;
}

.album-heading span {
  display: block;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
}

.photo-album {
  max-width: 1320px;
  margin: 0 auto;
  column-count: 4;
  column-gap: 10px;
}

.photo-album-item {
  display: block;
  margin: 0 0 10px;
  break-inside: avoid;
  overflow: hidden;
  border-radius: 5px;
  background: #111416;
}

.photo-album-item img {
  display: block;
  width: 100%;
  height: auto;
  background: #111416;
}

@media (max-width: 900px) {
  .photo-album {
    column-count: 3;
  }
}

@media (max-width: 620px) {
  .all-photo-album {
    padding-right: 12px;
    padding-left: 12px;
  }

  .album-heading {
    padding-right: 8px;
    padding-left: 8px;
  }

  .photo-album {
    column-count: 2;
    column-gap: 7px;
  }

  .photo-album-item {
    margin-bottom: 7px;
    border-radius: 3px;
  }
}

/* 相册总览固定为单屏缩略图墙；完整大图仍在下方分类合集展示。 */
.all-photo-album {
  display: flex;
  flex-direction: column;
  height: 100vh;
  min-height: 0;
  padding-top: clamp(48px, 6vh, 76px);
  padding-bottom: clamp(28px, 4vh, 52px);
  overflow: hidden;
}

@supports (height: 100dvh) {
  .all-photo-album {
    height: 100dvh;
  }
}

.album-heading {
  flex: 0 0 auto;
  margin-bottom: clamp(20px, 3vh, 34px);
}

.album-heading h2 {
  font-size: clamp(34px, 4.4vw, 58px);
}

.album-heading span {
  margin-top: 9px;
  font-size: 12px;
}

.photo-album {
  display: grid;
  flex: 1 1 auto;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  grid-template-rows: repeat(9, minmax(0, 1fr));
  grid-auto-flow: row;
  gap: 4px;
  min-height: 0;
  column-count: unset;
  column-gap: 0;
}

.photo-album-item {
  min-height: 0;
  margin: 0;
  border-radius: 3px;
}

.photo-album-item img {
  height: 100%;
  object-fit: cover;
}

@media (max-width: 620px) {
  .all-photo-album {
    padding-top: 36px;
    padding-bottom: 20px;
  }

  .album-heading {
    margin-bottom: 18px;
  }

  .album-heading h2 {
    font-size: 34px;
  }

  .album-heading > p,
  .album-heading span {
    font-size: 9px;
  }

  .photo-album {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    grid-template-rows: repeat(14, minmax(0, 1fr));
    gap: 3px;
  }
}

.hero .hero-bottom-description {
  position: absolute;
  z-index: 4;
  left: 50%;
  bottom: 54px;
  width: min(88vw, 520px);
  margin: 0;
  transform: translateX(-50%);
  text-align: center;
  font-size: 13px;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.82);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.38);
}

.hero .hero-video-meta {
  padding: 9px 11px;
}

@media (max-width: 620px) {
  .hero .hero-copy h1 {
    font-size: clamp(32px, 9vw, 42px);
  }

  .hero .hero-bottom-description {
    bottom: 58px;
    width: min(86vw, 360px);
    font-size: 12px;
  }
}

.hero-video-progress i,
.hero-video-progress i.is-active {
  animation: none;
  transform-origin: left;
}

.hero-video-progress i.is-active {
  transform: scaleX(0.02);
}

/* 更小的照片卡片，让同一视口内呈现更多影像。 */
.drift-column {
  width: 142px;
  flex-basis: 142px;
  padding: 5px;
}

.drift-tile {
  width: 132px;
  height: auto;
  margin-bottom: 10px;
  border-radius: 4px;
}

.drift-tile img {
  height: auto;
  object-fit: contain;
}

.drift-plane {
  opacity: 0;
  transition: transform 0.25s ease-out, opacity 0.24s ease-out;
}

.drift-plane.is-ready {
  opacity: 1;
}

/* 第三屏文案直接浮于照片上，取消整块玻璃文本框。 */
.feature-card .feature-caption {
  left: 30px;
  right: 30px;
  bottom: 28px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  box-shadow: none;
}

.feature-card .feature-caption h2 {
  max-width: 620px;
  font-size: clamp(19px, 2.1vw, 25px);
  color: #ffffff;
  font-weight: 200;
  line-height: 1.15;
  letter-spacing: -0.045em;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.58);
}

.feature-card {
  height: auto;
  background: none;
}

.feature-card::before {
  display: none;
}

.feature-card .feature-image {
  display: block;
  width: 100%;
  height: auto;
}

@media (max-width: 620px) {
  .feature-card .feature-caption {
    left: 20px;
    right: 20px;
    bottom: 20px;
  }

  .feature-card .feature-caption h2 {
    max-width: 240px;
  }
}

@media (max-width: 620px) {
  .drift-column {
    width: 122px;
    flex-basis: 122px;
  }

  .drift-tile {
    width: 112px;
    height: auto;
  }
}

/* 引语页使用桂林全景，并保留足够的文字对比度。 */
/* quote background revision */
.quote {
  position: relative;
  background:
    linear-gradient(180deg, rgba(4, 10, 12, 0.22), rgba(4, 10, 12, 0.62)),
    url("assets/DSC08247 全景.jpg") center / cover no-repeat;
  color: #fff;
}

.quote blockquote {
  position: relative;
  z-index: 1;
  max-width: 736px;
  margin-top: 22px;
  font-size: clamp(22px, 2.42vw, 28px);
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.58);
}

.quote .quote-by {
  position: relative;
  z-index: 1;
  display: inline-block;
  margin-top: 22px;
  padding: 6px 14px;
  border-radius: 22px;
  background: rgba(0, 0, 0, 0.18);
  color: rgba(255, 255, 255, 0.86);
  font-size: 11px;
  font-weight: 100;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* 第五页使用原图比例，不裁切；仅第二页浮动墙保留悬停动效。 */
.work-card,
.work-card-large {
  height: auto;
  background: none;
}

.work-card::before,
.work-card::after {
  display: none;
}

.work-card img {
  display: block;
  width: 100%;
  height: auto;
}

.work-card:nth-child(2),
.work-card:nth-child(3) {
  aspect-ratio: 1.36;
  overflow: hidden;
}

.work-card:nth-child(2) img,
.work-card:nth-child(3) img {
  height: 100%;
  object-fit: cover;
}

.feature-card:hover::before,
.work-card:hover::before {
  transform: none;
}

/* 第二页采用直角液态玻璃层，保留背景影像的流动感。 */
.statement .statement-content {
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.025) 48%, rgba(8, 16, 20, 0.18)),
    rgba(8, 14, 17, 0.2);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
  backdrop-filter: blur(22px) saturate(145%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.32), inset 0 -1px 0 rgba(255, 255, 255, 0.06), 0 20px 50px rgba(0, 0, 0, 0.2);
}

.statement .statement-content h2 {
  font-size: clamp(26px, 2.97vw, 32px);
  font-weight: 300;
}

.statement .statement-content > p {
  font-weight: 200;
}

.feature-card {
  border-radius: 0;
}

.contact-button {
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 54px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.86), rgba(220, 232, 238, 0.56));
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72), 0 10px 24px rgba(0, 0, 0, 0.18);
}

/* 倒数第二页：以原始 3:2 比例展示影像，不将照片裁切为背景。 */
.quote.quote {
  padding: clamp(48px, 7vw, 104px) clamp(16px, 4vw, 56px) clamp(64px, 8vw, 120px);
  background: #ffffff;
  color: #171719;
}

.quote.quote .quote-figure {
  position: relative;
  width: min(100%, 1200px);
  margin: 0 auto;
  overflow: hidden;
}

.quote.quote .quote-image {
  display: block;
  width: 100%;
  height: auto;
  background: #f2f3f2;
}

.quote.quote .quote-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  padding: clamp(24px, 5vw, 72px);
  text-align: center;
  color: #ffffff;
  background: linear-gradient(180deg, rgba(4, 10, 12, 0.14), rgba(4, 10, 12, 0.32));
}

.quote.quote .quote-overlay blockquote {
  max-width: 736px;
  margin: 0;
  color: #ffffff;
  font-size: clamp(20px, 2vw, 25px);
  font-weight: 400;
  line-height: 1.35;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.58);
}

.quote.quote .quote-overlay .quote-by {
  display: block;
  margin: 14px auto 0;
  padding: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.86);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.quote.quote .quote-copyright {
  position: absolute;
  z-index: 2;
  right: 24px;
  bottom: 20px;
  left: 24px;
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 10px;
  letter-spacing: 0.06em;
  line-height: 1.35;
  text-align: center;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.54);
}

/* 取消滚动联动和进入视口的动效。 */
html {
  scroll-behavior: auto;
}

.reveal,
.reveal.visible {
  opacity: 1;
  transform: none;
  transition: none;
}

/* 仅为首页向下提示保留箭头引导；其余滚动与入场动效继续关闭。 */
@keyframes scroll-hint-bounce {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.72;
  }

  50% {
    transform: translateY(6px);
    opacity: 1;
  }
}

.hero .scroll-hint span {
  display: inline-block;
  animation: scroll-hint-bounce 1.8s ease-in-out infinite;
}

/* 作品保持原始比例，并以统一的轻量阴影从白色页面中分离出来。 */
.collection-grid > .collection-card,
.feature-card,
.quote.quote .quote-figure {
  box-shadow: 0 14px 34px rgba(23, 23, 25, 0.16);
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 20px;
}

.site-footer > span:nth-child(2) {
  grid-column: 3;
  grid-row: 1;
  justify-self: end;
}

.site-footer__copyright {
  grid-column: 2;
  grid-row: 1;
  color: rgba(23, 23, 25, 0.5);
  font-size: 10px;
  text-align: center;
}

@media (max-width: 620px) {
  .site-footer {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .site-footer > span:nth-child(2),
  .site-footer__copyright {
    grid-column: 1;
    grid-row: auto;
    justify-self: center;
  }

  .site-footer__copyright {
    display: block;
    margin-top: 0;
  }
}

@media (hover: hover) and (pointer: fine) {
  .collection-grid > .collection-card {
    position: relative;
    transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 200ms ease;
  }

  .collection-grid > .collection-card img {
    transition: transform 240ms cubic-bezier(0.16, 1, 0.3, 1);
  }

  .collection-grid > .collection-card::after {
    content: '⌕';
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 2;
    display: grid;
    width: 28px;
    height: 28px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.75);
    border-radius: 50%;
    background: rgba(10, 11, 12, 0.46);
    color: #ffffff;
    font-size: 19px;
    line-height: 1;
    opacity: 0;
    pointer-events: none;
    transform: scale(0.88);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .collection-grid > .collection-card:hover,
  .collection-grid > .collection-card:focus-visible {
    z-index: 2;
    box-shadow: 0 20px 44px rgba(23, 23, 25, 0.2);
  }

  .collection-grid > .collection-card:hover img,
  .collection-grid > .collection-card:focus-visible img {
    transform: scale(1.025);
  }

  .collection-grid > .collection-card:hover::after,
  .collection-grid > .collection-card:focus-visible::after {
    opacity: 1;
    transform: scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero .scroll-hint span {
    animation: none;
  }

  .collection-grid > .collection-card,
  .collection-grid > .collection-card img,
  .collection-grid > .collection-card::after {
    transition: none;
  }

  .collection-grid > .collection-card:hover img,
  .collection-grid > .collection-card:focus-visible img {
    transform: none;
  }
}

/* 首页背景视频：源片为 2.39:1，舞台以 cover 居中铺满不同视口。 */
.hero {
  background: #000;
  height: 100vh;
  min-height: 100vh;
}

@supports (height: 100dvh) {
  .hero {
    height: 100dvh;
    min-height: 100dvh;
  }
}

.hero .hero-video-stage {
  inset: 0;
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  transform: none;
  background: #000;
}

.hero .hero-video {
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transform: none;
}

.hero .hero-video.is-active {
  transform: none;
}

/* 最终移动端覆盖：三列作品预览与横向联系入口。 */
@media (max-width: 620px) {
  .portfolio-collection { row-gap: 20px; padding: 38px 12px 48px; }
  .collection-heading.collection-heading--compact { padding-bottom: 16px; }
  .collection-grid--15, .collection-grid--27, .collection-grid--24 { column-count: 3; column-gap: 8px; }
  .collection-grid > .collection-card { margin-bottom: 8px; padding: 3px; box-shadow: 0 5px 14px rgba(23, 23, 25, 0.12); }
  .collection-copyright { margin-top: 12px; }
  .contact-hub { padding: 52px 12px 56px; }
  .contact-hub__links { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 34px; }
  .contact-hub__symbol { width: 42px; height: 42px; margin-bottom: 8px; border-width: 1.5px; }
  .contact-hub__symbol--qq { border-radius: 13px; font-size: 23px; }
  .contact-hub__symbol--mail { border-radius: 12px; font-size: 21px; }
  .contact-hub__label { font-size: 12px; }
  .contact-hub__detail { margin-top: 5px; font-size: 9px; line-height: 1.3; }
}

/* 最终主题覆盖：第 2 至第 6 页统一为白色底片。 */
body {
  background: #ffffff;
  color: #171719;
}

/* 合集标题区贴近区块顶部，并采用更克制的字号层级。 */
.portfolio-collections {
  padding-top: clamp(42px, 5vw, 64px);
}

.collections-intro {
  margin: 0 auto clamp(44px, 6vw, 76px);
}

.collections-intro h2 {
  margin: 10px 0 12px;
  font-size: clamp(30px, 2.6vw, 34px);
  font-weight: 300;
  letter-spacing: -0.055em;
}

.collections-intro > p:last-child {
  font-size: 12px;
}

.portfolio-collections,
.feature-wrap,
.quote,
.about,
.contact,
footer {
  background: #ffffff;
  color: #171719;
}

.collections-kicker,
.collection-heading > p,
.collection-meta > p,
.collection-heading.collection-heading--compact > p {
  color: rgba(23, 23, 25, 0.52);
}

.collections-intro > p:last-child,
.collection-heading span,
.collection-meta > span,
.contact > p:not(.eyebrow),
.about-copy > p:not(.eyebrow) {
  color: rgba(23, 23, 25, 0.62);
}

.portfolio-collection {
  border-top-color: rgba(23, 23, 25, 0.18);
}

.collection-card {
  background: #eef0f1;
}

.quote {
  background: #ffffff;
}

.quote blockquote {
  text-shadow: none;
}

.quote .quote-by {
  background: transparent;
  color: rgba(23, 23, 25, 0.58);
  text-shadow: none;
}

footer {
  border-top-color: rgba(23, 23, 25, 0.16);
  color: rgba(23, 23, 25, 0.52);
}