/* ============================================================
   manfiah.win — Editorial dark theme
   ------------------------------------------------------------
   深色沉浸式首页 + 浅色阅读页；零外部字体依赖。
   改品牌色：只改 :root 里的 --accent。
   ============================================================ */

:root {
  /* 色板（取自主视觉的落日 + 夜色） */
  --ink: #121316;
  --ink-2: #17181c;
  --ink-3: #1d1f24;
  --paper: #e9e7e2;
  --paper-2: #dfdcd5;
  --white: #f6f4ef;
  --text: #f2f0ec;
  --muted: rgba(242, 240, 236, .6);
  --muted-2: rgba(242, 240, 236, .42);
  --ink-text: #16171a;
  --ink-muted: rgba(22, 23, 26, .62);
  --accent: #22d3ee;
  --accent-ink: #0b6b7a;
  --accent-soft: rgba(34, 211, 238, .16);
  --line: rgba(242, 240, 236, .13);
  --line-strong: rgba(242, 240, 236, .22);
  --line-ink: rgba(22, 23, 26, .16);

  /* 字体：全部使用系统字体，零网络请求 */
  --font-display: "Helvetica Neue", "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", "Songti SC", SimSun, serif;

  --container: 1400px;
  --pad: clamp(20px, 4.5vw, 64px);
  --header-h: 78px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #0b3441 0%, #07222c 26%, #060d11 58%, #050608 100%);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.page-light {
  background: var(--paper);
  color: var(--ink-text);
  --accent: var(--accent-ink);
}

img { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

button { font: inherit; color: inherit; }

::selection { background: var(--accent); color: #04222a; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--accent);
  color: #1a1208;
  padding: 12px 18px;
  border-radius: 0 0 12px 0;
  font-size: .9rem;
}
.skip:focus { left: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad);
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  color: var(--white);
  border-bottom: 1px solid transparent;
  transition: background .45s var(--ease), border-color .45s var(--ease), backdrop-filter .45s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(4, 20, 26, .62);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--line);
}

body.page-light .site-header { color: var(--ink-text); }
body.page-light .site-header.is-scrolled {
  background: rgba(233, 231, 226, .74);
  border-bottom-color: var(--line-ink);
}

.site-header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 500;
  letter-spacing: .01em;
  flex: 0 0 auto;
}
.brand img {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 0 1px rgba(34, 211, 238, .45);
  transition: opacity .3s var(--ease);
}
.brand:hover img { opacity: .82; }

.nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.4vw, 34px);
  margin-inline-start: auto;
}

.nav__link {
  position: relative;
  font-size: .9rem;
  letter-spacing: .01em;
  opacity: .74;
  transition: opacity .25s var(--ease);
  white-space: nowrap;
}
.nav__link:hover { opacity: 1; }
.nav__link.is-active { opacity: 1; }
.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -7px;
  height: 1px;
  background: var(--accent);
  opacity: .9;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-inline-start: 8px;
}

.lang {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  font-size: .82rem;
  letter-spacing: .04em;
  opacity: .72;
  border-radius: 999px;
  transition: opacity .25s, background .25s;
  white-space: nowrap;
}
.lang:hover { opacity: 1; background: rgba(242, 240, 236, .08); }
body.page-light .lang:hover { background: rgba(22, 23, 26, .06); }

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 22px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  font-size: .86rem;
  letter-spacing: .03em;
  white-space: nowrap;
  background: transparent;
  cursor: pointer;
  transition: background .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease), transform .35s var(--ease);
}
.pill svg { width: 15px; height: 15px; transition: transform .35s var(--ease); }
.pill:hover { background: var(--white); color: var(--ink-text); border-color: var(--white); }
.pill:hover svg { transform: translateX(3px); }

.pill--solid {
  background: var(--white);
  color: var(--ink-text);
  border-color: var(--white);
}
.pill--solid:hover { background: var(--accent); border-color: var(--accent); color: #04222a; }

.pill--big {
  padding: 16px 30px;
  font-size: .95rem;
}

.pill.is-disabled { opacity: .45; pointer-events: none; }

/* 移动端菜单按钮 */
.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
}
.menu-btn svg { width: 19px; height: 19px; }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  display: none;
  background: rgba(10, 11, 13, .96);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  padding: calc(var(--header-h) + 24px) var(--pad) 48px;
  color: var(--white);
  overflow-y: auto;
}
.mobile-menu.is-open { display: block; }
.mobile-menu nav { display: flex; flex-direction: column; }
.mobile-menu a {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 6vw, 2.2rem);
  letter-spacing: -.02em;
}
.mobile-menu .mobile-lang { margin-top: 28px; display: inline-flex; gap: 12px; }

/* ---------- 首屏 Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: #0a0b0d;
  isolation: isolate;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 64% 58%;
  transform: scale(1.02);
  animation: kenburns 26s ease-in-out infinite alternate;
  will-change: transform;
}

.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 26, 32, .72) 0%, rgba(5, 22, 28, .22) 30%, rgba(5, 16, 20, .52) 58%, rgba(3, 5, 7, .95) 100%),
    linear-gradient(94deg, rgba(4, 24, 30, .6) 0%, rgba(4, 20, 26, 0) 58%);
}

.hero__inner {
  position: relative;
  width: 100%;
  padding-block: 0 clamp(44px, 7vh, 92px);
}

.hero__eyebrow {
  margin: 0 0 22px;
  font-size: .76rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero__title {
  margin: 0 0 26px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(3.1rem, 10.4vw, 9.2rem);
  line-height: .9;
  letter-spacing: -.045em;
  text-transform: uppercase;
  color: var(--white);
}

.hero__title .line {
  display: block;
  overflow: hidden;
}

.hero__title .line > span {
  display: block;
  transform: translateY(112%);
  animation: rise 1.15s var(--ease) forwards;
}
.hero__title .line:nth-child(2) > span { animation-delay: .11s; }

.hero__sub {
  margin: 0 0 34px;
  max-width: 44ch;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.05rem, 1.9vw, 1.5rem);
  line-height: 1.5;
  color: rgba(246, 244, 239, .88);
}

.hero__cta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: .68rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(246, 244, 239, .6);
}
.hero__scroll::after {
  content: "";
  width: 1px;
  height: 42px;
  background: linear-gradient(180deg, rgba(246, 244, 239, .55), rgba(246, 244, 239, 0));
  animation: drop 2.4s var(--ease) infinite;
}

@keyframes kenburns {
  from { transform: scale(1.02); }
  to { transform: scale(1.11); }
}

@keyframes rise {
  to { transform: translateY(0); }
}

@keyframes drop {
  0% { transform: scaleY(.2); opacity: 0; transform-origin: top; }
  40% { opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; transform-origin: top; }
}

/* ---------- 通用区块 ---------- */
.section { padding-block: clamp(78px, 12vh, 150px); }
.section--dark { background: transparent; color: var(--text); }
.section--alt { background: rgba(6, 26, 32, .45); }
.section--paper { background: var(--paper); color: var(--ink-text); --accent: var(--accent-ink); }

.eyebrow {
  margin: 0 0 18px;
  font-size: .74rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
}

.section__title {
  margin: 0 0 26px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 1.04;
  letter-spacing: -.03em;
}

.section__lead {
  margin: 0 0 34px;
  max-width: 60ch;
  font-size: clamp(1rem, 1.35vw, 1.12rem);
  line-height: 1.78;
  color: var(--muted);
}
.section--paper .section__lead { color: var(--ink-muted); }

.section__foot { margin-top: 38px; }

/* ---------- 01 关于预览 ---------- */
.about-preview {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: end;
}

.about-preview__title {
  margin: 0 0 28px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.3rem, 5.6vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -.035em;
}

.about-preview__media {
  position: relative;
  border-radius: 26px;
  overflow: hidden;
  aspect-ratio: 4 / 5;
}
.about-preview__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 58% 62%;
  filter: saturate(.92) contrast(1.03);
  transition: transform 1.4s var(--ease);
}
.about-preview__media:hover img { transform: scale(1.05); }

/* ---------- 02 摄影集列表 ---------- */
.cat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-ink);
}

.cat-list li { border-bottom: 1px solid var(--line-ink); }

.cat-list a {
  display: flex;
  align-items: baseline;
  gap: clamp(16px, 2.6vw, 40px);
  padding: clamp(18px, 2.4vw, 30px) 4px;
  transition: color .3s var(--ease), padding .4s var(--ease);
}

.cat-list a:hover { color: var(--accent); padding-inline-start: 14px; }

.cat-list__idx {
  font-size: .76rem;
  letter-spacing: .14em;
  opacity: .5;
  min-width: 3ch;
}

.cat-list__label {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.4vw, 2.6rem);
  letter-spacing: -.02em;
  line-height: 1.1;
}

.cat-list__meta {
  margin-inline-start: auto;
  font-size: .8rem;
  letter-spacing: .06em;
  opacity: .55;
  white-space: nowrap;
}

/* ---------- 04 标签 + 媒体卡 ---------- */
.tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(242, 240, 236, .07);
  border: 1px solid var(--line);
  margin-bottom: 34px;
}

.tabs button {
  border: 0;
  background: transparent;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: .87rem;
  letter-spacing: .02em;
  opacity: .66;
  cursor: pointer;
  transition: background .3s var(--ease), color .3s var(--ease), opacity .3s;
  white-space: nowrap;
}
.tabs button:hover { opacity: 1; }
.tabs button.is-active {
  background: var(--white);
  color: var(--ink-text);
  opacity: 1;
}

.media-card {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  background: var(--ink-3);
}
.media-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: 50% 55%;
  transition: transform 1.6s var(--ease);
}
.media-card:hover img { transform: scale(1.045); }

.media-card__badge {
  position: absolute;
  top: 20px;
  right: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border-radius: 999px;
  background: rgba(12, 13, 15, .66);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(246, 244, 239, .18);
  font-size: .82rem;
  letter-spacing: .02em;
}
.media-card__badge svg { width: 15px; height: 15px; color: #f2c14e; }

.media-card__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 28px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  background: linear-gradient(180deg, transparent, rgba(8, 9, 11, .78));
}
.media-card__caption h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.1rem, 1.8vw, 1.5rem);
  letter-spacing: -.01em;
}
.media-card__caption p { margin: 6px 0 0; font-size: .86rem; color: var(--muted); }

/* ---------- 05 弧形大图 ---------- */
.curve {
  max-width: 1180px;
  margin-inline: auto;
  border-radius: 480px 480px 0 0;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--ink-3);
}
.curve img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 46%;
  filter: grayscale(.86) contrast(1.06);
  transition: filter 1.2s var(--ease), transform 1.6s var(--ease);
}
.curve:hover img { filter: grayscale(.25) contrast(1.02); transform: scale(1.03); }

.statement {
  max-width: 30ch;
  margin: 0 auto 56px;
  text-align: center;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.8rem, 4.4vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -.03em;
}

.statement__sub {
  max-width: 56ch;
  margin: 0 auto 64px;
  text-align: center;
  color: var(--muted);
  font-size: clamp(.98rem, 1.3vw, 1.1rem);
  line-height: 1.8;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: #04070a;
  color: var(--muted);
  padding: clamp(48px, 8vh, 86px) 0 30px;
  border-top: 1px solid var(--line);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, .8fr) minmax(0, .8fr);
  gap: clamp(28px, 5vw, 72px);
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
}

.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: 16px;
}
.site-footer__brand img { width: 24px; height: 24px; border-radius: 50%; object-fit: cover; }

.site-footer__note { margin: 0; max-width: 34ch; font-size: .9rem; line-height: 1.7; }

.site-footer__title {
  margin: 0 0 16px;
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.site-footer__links { display: flex; flex-direction: column; gap: 10px; font-size: .93rem; }
.site-footer__links a { color: var(--text); opacity: .78; transition: opacity .25s, color .25s; }
.site-footer__links a:hover { opacity: 1; color: var(--accent); }

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-top: 26px;
  font-size: .82rem;
  color: var(--muted-2);
}

/* ---------- 浅色内容页 ---------- */
main > article.container { max-width: 1000px; }

.page-head__title, .section__title, .about-preview__title, .statement, .chooser__title { text-wrap: balance; }

.page-head {
  padding-top: calc(var(--header-h) + clamp(48px, 8vh, 96px));
  padding-bottom: clamp(30px, 5vh, 56px);
}

.page-head__eyebrow {
  margin: 0 0 18px;
  font-size: .74rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
}

.page-head__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.4rem, 6.4vw, 5rem);
  line-height: 1.02;
  letter-spacing: -.035em;
}

.page-head__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  font-size: .86rem;
  color: var(--ink-muted);
}

.prose {
  max-width: none;
  padding-bottom: clamp(48px, 8vh, 96px);
  font-size: 1.04rem;
  line-height: 1.85;
}
.prose > * + * { margin-top: 1.15em; }
.prose h2 {
  margin-top: 2em;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 1.75rem);
  font-weight: 500;
  letter-spacing: -.02em;
  line-height: 1.2;
}
.prose h3 { margin-top: 1.7em; font-size: 1.16rem; font-weight: 600; }
.prose p { margin: 0; }
.prose a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(22,23,26,.35); }
.prose a:hover { color: var(--accent); text-decoration-color: var(--accent); }
.prose ul, .prose ol { padding-inline-start: 1.3em; }
.prose li + li { margin-top: .45em; }
.prose blockquote {
  margin: 1.6em 0;
  padding: 4px 0 4px 22px;
  border-inline-start: 2px solid var(--accent);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.12rem;
  color: var(--ink-muted);
}
.prose code {
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: .88em;
  padding: .15em .4em;
  border-radius: 5px;
  background: rgba(22, 23, 26, .07);
}
.prose pre {
  padding: 20px 22px;
  border-radius: 16px;
  background: #14151a;
  color: #ecebf0;
  overflow-x: auto;
  font-size: .88rem;
  line-height: 1.65;
}
.prose pre code { background: none; padding: 0; color: inherit; }
.prose hr { border: 0; border-top: 1px solid var(--line-ink); margin-block: 2.2em; }
.prose img { border-radius: 16px; }

/* 文章列表 */
.post-list { list-style: none; margin: 0 0 clamp(64px, 8vh, 120px); padding: 0; border-top: 1px solid var(--line-ink); }

.post-item { border-bottom: 1px solid var(--line-ink); }

.post-item a {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) auto;
  gap: clamp(16px, 3vw, 40px);
  align-items: baseline;
  padding: clamp(18px, 2.4vw, 28px) 4px;
  transition: padding .4s var(--ease);
}
.post-item a:hover { padding-inline-start: 14px; }

.post-item__date { font-size: .8rem; letter-spacing: .08em; color: var(--ink-muted); white-space: nowrap; }

.post-item__title {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.2vw, 1.6rem);
  font-weight: 500;
  letter-spacing: -.015em;
  line-height: 1.3;
  transition: color .3s;
}
.post-item a:hover .post-item__title { color: var(--accent); }

.post-item__excerpt {
  grid-column: 2 / 3;
  margin: 8px 0 0;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--ink-muted);
}

.post-item__arrow { opacity: .35; transition: opacity .3s, transform .3s; }
.post-item a:hover .post-item__arrow { opacity: 1; transform: translateX(4px); }

/* 项目列表（摄影集） */
.series-list { list-style: none; margin: 0 0 clamp(64px, 8vh, 120px); padding: 0; border-top: 1px solid var(--line-ink); }
.series-item { border-bottom: 1px solid var(--line-ink); }
.series-item a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: clamp(16px, 3vw, 40px);
  align-items: center;
  padding: clamp(20px, 3vw, 34px) 4px;
  transition: padding .4s var(--ease);
}
.series-item a:hover { padding-inline-start: 14px; }
.series-item__title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 2.2rem);
  letter-spacing: -.02em;
  line-height: 1.15;
  transition: color .3s;
}
.series-item a:hover .series-item__title { color: var(--accent); }
.series-item__meta { font-size: .82rem; letter-spacing: .06em; color: var(--ink-muted); }
.series-item__tags { display: flex; gap: 8px; flex-wrap: wrap; }
.series-item__tags span {
  font-size: .74rem;
  letter-spacing: .06em;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--line-ink);
  color: var(--ink-muted);
}

/* 摄影集详情：照片墙 */
.photo-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  margin-bottom: clamp(48px, 8vh, 96px);
}

.photo-item {
  display: block;
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  background: var(--paper-2);
}

.photo-item img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform .9s var(--ease);
}

.photo-item:hover img { transform: scale(1.04); }

@media (max-width: 640px) {
  .photo-grid { grid-template-columns: 1fr; }
}

/* 评论 */
.comments { margin-top: 64px; padding-top: 40px; border-top: 1px solid var(--line-ink); }
.comments__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -.01em;
}
.comments__note {
  padding: 18px 20px;
  border: 1px dashed var(--line-ink);
  border-radius: 14px;
  font-size: .9rem;
  color: var(--ink-muted);
}

/* ---------- 语言选择页 ---------- */
.chooser {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: calc(var(--header-h) + 40px) var(--pad) 60px;
  text-align: center;
}
.chooser__inner { width: 100%; max-width: 720px; }
.chooser__mark {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 28px;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .14), 0 18px 50px rgba(34, 211, 238, .18);
}
.chooser__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.4rem);
  font-weight: 600;
  letter-spacing: -.04em;
  text-transform: uppercase;
}
.chooser__sub {
  margin: 0 0 44px;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
}
.chooser__grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.chooser__card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  text-align: start;
  transition: background .35s var(--ease), border-color .35s, transform .35s var(--ease);
}
.chooser__card:hover {
  background: rgba(242, 240, 236, .06);
  border-color: var(--line-strong);
  transform: translateY(-3px);
}
.chooser__card h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: -.01em;
}
.chooser__card p { margin: 0; font-size: .9rem; color: var(--muted); }
.chooser__card .arrow-line { display: inline-flex; align-items: center; gap: 8px; font-size: .84rem; color: var(--accent); margin-top: 4px; }
.chooser__card .arrow-line svg { width: 15px; height: 15px; }

/* ---------- 入场动效 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .95s var(--ease), transform .95s var(--ease);
  transition-delay: var(--d, 0ms);
}
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .about-preview { grid-template-columns: 1fr; }
  .about-preview__media { aspect-ratio: 16 / 10; }
}

@media (max-width: 860px) {
  .nav { display: none; }
  .menu-btn { display: inline-flex; }
  .header-actions { margin-inline-start: auto; }
  .site-header__inner { gap: 14px; }
  .curve { border-radius: 240px 240px 0 0; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
  .site-footer__grid > :first-child { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  :root { --header-h: 68px; }
  .header-cta { display: none; }
  .site-header__inner { gap: 10px; }
  .statement { max-width: 22ch; font-size: clamp(1.55rem, 7.6vw, 2.4rem); }
  .media-card__caption { flex-direction: column; align-items: flex-start; gap: 12px; }
  .hero__title { font-size: clamp(2.9rem, 13.5vw, 4.4rem); }
  .hero__sub { margin-bottom: 26px; }
  .hero__scroll { display: none; }
  .post-item a { grid-template-columns: 1fr auto; }
  .post-item__date { grid-column: 1 / -1; }
  .post-item__excerpt { grid-column: 1 / -1; }
  .series-item a { grid-template-columns: 1fr auto; }
  .series-item__tags { display: none; }
  .site-footer__grid { grid-template-columns: 1fr; }
  .media-card__caption { padding: 18px; }
  .media-card__badge { top: 14px; right: 14px; }
}

/* ---------- 无障碍 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .site-header, .site-footer, .comments, .hero__scroll { display: none; }
  body { background: #fff; color: #000; }
}