:root {
  color-scheme: light;
  --paper: #e9f1f0;
  --paper-deep: #dce8e6;
  --surface: rgba(255, 255, 255, .64);
  --surface-strong: rgba(255, 255, 255, .84);
  --ink: #18302f;
  --muted: #647a78;
  --line: rgba(49, 91, 88, .17);
  --moss: #287d73;
  --coral: #a35d91;
  --shadow: rgba(36, 86, 83, .14);
  --raised-shadow: 13px 13px 30px rgba(36, 86, 83, .12), -13px -13px 30px rgba(255, 255, 255, .72);
  --small-shadow: 7px 7px 17px rgba(36, 86, 83, .11), -7px -7px 17px rgba(255, 255, 255, .7);
  --inset-shadow: inset 4px 4px 9px rgba(36, 86, 83, .1), inset -4px -4px 9px rgba(255, 255, 255, .68);
  --serif: Georgia, "Noto Serif SC", "Songti SC", serif;
  --sans: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --paper: #1b0715;
  --paper-deep: #25091d;
  --surface: rgba(48, 10, 36, .7);
  --surface-strong: rgba(48, 10, 36, .9);
  --ink: #f5edf3;
  --muted: #bca5b5;
  --line: #5e2750;
  --moss: #e95420;
  --coral: #8ae234;
  --shadow: rgba(0, 0, 0, .42);
  --raised-shadow: 13px 13px 30px rgba(0, 0, 0, .4), -9px -9px 24px rgba(119, 33, 111, .16);
  --small-shadow: 7px 7px 17px rgba(0, 0, 0, .34), -6px -6px 15px rgba(119, 33, 111, .13);
  --inset-shadow: inset 4px 4px 9px rgba(0, 0, 0, .34), inset -4px -4px 9px rgba(119, 33, 111, .12);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 9% 4%, rgba(81, 191, 170, .18), transparent 27rem),
    radial-gradient(circle at 92% 22%, rgba(190, 111, 168, .19), transparent 30rem),
    linear-gradient(135deg, #e8f3ec 0%, var(--paper) 46%, #e4ebf3 100%);
  font-family: var(--sans);
  line-height: 1.7;
  transition: color .3s ease, background-color .3s ease;
}
html[data-theme="dark"] body {
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(255, 255, 255, .018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .018) 1px, transparent 1px),
    radial-gradient(circle at 90% 12%, rgba(119, 33, 111, .28), transparent 31rem),
    radial-gradient(circle at 3% 46%, rgba(233, 84, 32, .09), transparent 25rem);
  background-size: 32px 32px, 32px 32px, auto, auto;
}
body::before,
body::after {
  position: fixed;
  z-index: -1;
  width: 25rem;
  height: 25rem;
  border-radius: 50%;
  content: "";
  filter: blur(55px);
  opacity: .26;
  pointer-events: none;
}
body::before { right: -10rem; top: 18rem; background: rgba(191, 106, 169, .34); }
body::after { left: -12rem; top: 48rem; background: rgba(70, 185, 164, .28); }
html[data-theme="dark"] body::before { background: rgba(119, 33, 111, .35); }
html[data-theme="dark"] body::after { background: rgba(233, 84, 32, .12); }

::selection { color: #fff; background: var(--moss); }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.site-shell { width: min(1240px, calc(100% - 56px)); margin: 0 auto; }
.topbar {
  position: sticky;
  z-index: 20;
  top: 14px;
  display: flex;
  align-items: center;
  height: 72px;
  margin-top: 14px;
  padding: 0 24px;
  border: 1px solid rgba(255, 255, 255, .68);
  border-radius: 22px;
  background: var(--surface);
  box-shadow: 0 12px 38px var(--shadow);
  backdrop-filter: blur(14px) saturate(1.18);
}
html[data-theme="dark"] .topbar { border-color: rgba(119, 33, 111, .65); background: rgba(44, 0, 30, .72); }
.brand { display: inline-flex; align-items: center; gap: 11px; font-family: var(--serif); font-size: 18px; letter-spacing: .01em; }
.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--moss) 70%, var(--line));
  border-radius: 50%;
  color: var(--moss);
  background: color-mix(in srgb, var(--surface-strong) 74%, transparent);
  box-shadow: var(--small-shadow);
  font-size: 20px;
  font-style: italic;
}
html[data-theme="dark"] .brand-mark { color: #fff; background: var(--moss); box-shadow: 0 0 24px rgba(233, 84, 32, .2); }
.topnav { display: flex; gap: 28px; margin-left: auto; color: var(--muted); font-size: 13px; }
.topnav a { position: relative; padding: 8px 0; }
.topnav a::after { position: absolute; right: 0; bottom: 2px; left: 0; height: 1px; content: ""; background: var(--coral); transform: scaleX(0); transition: transform .2s ease; }
.topnav a:hover, .topnav a.active { color: var(--ink); }
.topnav a:hover::after, .topnav a.active::after { transform: scaleX(1); }
.icon-button {
  display: grid;
  width: 40px;
  height: 40px;
  margin-left: 30px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  outline: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  color: var(--moss);
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  box-shadow: var(--small-shadow);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  transition: transform .2s ease, box-shadow .2s ease, color .2s ease;
}
.icon-button:hover { color: var(--coral); transform: translateY(-2px) rotate(8deg); }
.icon-button:active { box-shadow: var(--inset-shadow); transform: translateY(0); }
.icon-button:focus-visible, .topnav a:focus-visible { outline: 2px solid var(--coral); outline-offset: 4px; }

.main-content { padding: 72px 0 100px; }
.intro-band { display: grid; grid-template-columns: minmax(0, 1fr) 390px; gap: 92px; align-items: center; min-height: 560px; padding-bottom: 82px; }
.eyebrow, .article-kicker { margin: 0 0 22px; color: var(--moss); font: 12px/1.5 var(--mono); letter-spacing: .08em; }
.status-dot { display: inline-block; width: 7px; height: 7px; margin: 0 9px 1px 0; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 4px color-mix(in srgb, var(--coral) 15%, transparent); }
h1 { margin: 0; font-family: var(--serif); font-size: clamp(48px, 7vw, 86px); line-height: 1.12; font-weight: 500; letter-spacing: -.045em; }
h1 em { color: var(--moss); font-style: normal; }
html[data-theme="dark"] h1 em { color: var(--coral); }
.intro-text { max-width: 570px; margin: 30px 0 0; color: var(--muted); font-size: 16px; }
.intro-aside {
  position: relative;
  min-height: 390px;
  padding: 34px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .72);
  border-radius: 34px;
  color: var(--muted);
  background: var(--surface);
  box-shadow: var(--raised-shadow);
  backdrop-filter: blur(12px) saturate(1.14);
  font-size: 13px;
}
html[data-theme="dark"] .intro-aside { border-color: var(--line); background: var(--surface); }
.visual-number { position: absolute; right: -12px; top: -29px; color: color-mix(in srgb, var(--moss) 10%, transparent); font: 700 142px/1 var(--serif); pointer-events: none; }
html[data-theme="dark"] .visual-number { color: rgba(138, 226, 52, .07); }
.code-note { position: relative; z-index: 2; color: var(--muted); font: 12px/1.8 var(--mono); }
.code-note span { color: var(--coral); }
.code-note b { color: var(--moss); font-weight: 500; }
html[data-theme="dark"] .code-note span { color: var(--moss); }
html[data-theme="dark"] .code-note b { color: var(--coral); }
.line-art { position: relative; height: 210px; margin: 22px 0 18px; overflow: hidden; }
.line-art::before { position: absolute; left: 43px; top: 8px; width: 210px; height: 210px; border: 1px solid var(--moss); border-radius: 50%; content: ""; opacity: .7; }
.line-art::after { position: absolute; left: 7px; top: 110px; width: 290px; border-top: 1px solid var(--coral); content: ""; transform: rotate(-19deg); }
.line-art span { position: absolute; z-index: 1; width: 7px; height: 7px; border-radius: 50%; background: var(--moss); box-shadow: 0 0 0 5px color-mix(in srgb, var(--moss) 12%, transparent); }
.line-art span:nth-child(1) { left: 72px; top: 47px; }
.line-art span:nth-child(2) { left: 166px; top: 112px; background: var(--coral); }
.line-art span:nth-child(3) { left: 236px; top: 48px; }
.line-art span:nth-child(4) { left: 113px; top: 167px; background: var(--coral); }
.intro-aside p { position: relative; z-index: 2; margin: 0; }
.intro-aside strong { color: var(--ink); font: 12px var(--mono); }

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  margin-bottom: 32px;
  padding: 15px 20px;
  border: 1px solid rgba(255, 255, 255, .65);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--small-shadow);
  backdrop-filter: blur(10px);
}
html[data-theme="dark"] .toolbar { border-color: var(--line); }
.section-label { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 12px; letter-spacing: .1em; }
.rule { width: 25px; height: 1px; background: var(--coral); }
.search-box { display: flex; align-items: center; width: min(350px, 100%); gap: 10px; padding: 10px 13px; border: 1px solid var(--line); border-radius: 14px; color: var(--muted); background: color-mix(in srgb, var(--paper) 74%, transparent); box-shadow: var(--inset-shadow); }
.search-box:focus-within { border-color: var(--moss); }
.search-box input { min-width: 0; flex: 1; border: 0; outline: 0; color: var(--ink); background: transparent; font-size: 13px; }
.search-box input::placeholder { color: color-mix(in srgb, var(--muted) 72%, transparent); }
.search-box kbd { padding: 0 6px; border: 1px solid var(--line); border-radius: 5px; color: var(--muted); font: 10px/19px var(--mono); }

.post-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.post {
  min-width: 0;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, .62);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: var(--raised-shadow);
  backdrop-filter: blur(8px);
  transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease;
}
html[data-theme="dark"] .post { border-color: var(--line); }
.post:hover { border-color: color-mix(in srgb, var(--moss) 52%, var(--line)); transform: translateY(-5px); }
.post > a { display: flex; min-height: 255px; flex-direction: column; }
.post-card-head, .post-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.post-cover { display: block; width: 100%; aspect-ratio: 16 / 9; margin-top: 20px; border: 1px solid var(--line); border-radius: 17px; object-fit: cover; background: var(--paper-deep); }
.post-index { display: grid; width: 35px; height: 35px; place-items: center; border-radius: 11px; color: var(--moss); background: color-mix(in srgb, var(--paper) 75%, transparent); box-shadow: var(--small-shadow); font: 10px var(--mono); }
.post-date { color: var(--coral); font: 10px var(--mono); letter-spacing: .08em; }
.post-title { margin: 25px 0 11px; font-family: var(--serif); font-size: 27px; line-height: 1.38; font-weight: 500; letter-spacing: -.025em; transition: color .2s ease; }
.post:hover .post-title { color: var(--moss); }
html[data-theme="dark"] .post:hover .post-title { color: var(--coral); }
.post-excerpt { margin: 0 0 26px; color: var(--muted); font-size: 14px; }
.post-card-foot { margin-top: auto; padding-top: 19px; border-top: 1px solid var(--line); }
.post-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { color: var(--moss); font: 10px var(--mono); }
.tag::before { color: var(--coral); content: "#"; }
.read-more { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 9px; color: var(--muted); font-size: 11px; }
.read-more b { display: grid; width: 27px; height: 27px; place-items: center; border-radius: 9px; color: var(--moss); box-shadow: var(--small-shadow); font-weight: 400; }
.post:hover .read-more b { color: #fff; background: var(--moss); }
.empty-state { padding: 50px 0; color: var(--muted); text-align: center; font-size: 14px; }
.pagination { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 42px; }
.page-numbers { display: flex; align-items: center; gap: 8px; }
.page-step, .page-number {
  min-height: 42px;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: 13px;
  color: var(--muted);
  background: var(--surface);
  box-shadow: var(--small-shadow);
  cursor: pointer;
  font: 11px var(--mono);
  transition: color .2s ease, border-color .2s ease, background-color .2s ease, transform .2s ease;
}
.page-step { padding: 0 17px; }
.page-number { width: 42px; padding: 0; }
.page-step:hover:not(:disabled), .page-number:hover { border-color: var(--moss); color: var(--moss); transform: translateY(-2px); }
.page-number.active { border-color: var(--moss); color: #fff; background: var(--moss); box-shadow: 0 8px 20px color-mix(in srgb, var(--moss) 28%, transparent); }
html[data-theme="dark"] .page-number.active { color: var(--paper); background: var(--coral); border-color: var(--coral); }
.page-step:disabled { cursor: not-allowed; opacity: .38; box-shadow: none; }
.page-step:focus-visible, .page-number:focus-visible { outline: 2px solid var(--coral); outline-offset: 3px; }
.page-ellipsis { display: grid; width: 24px; height: 42px; place-items: center; color: var(--muted); font: 12px var(--mono); }

.archive-section, .about-section { padding-top: 92px; }
.archive-layout { display: grid; grid-template-columns: minmax(0, 1fr) 390px; gap: 58px; align-items: start; margin-top: 18px; }
.archive-row { display: flex; align-items: center; gap: 16px; padding: 18px 22px; border: 1px solid rgba(255, 255, 255, .58); border-radius: 16px; color: var(--ink); background: var(--surface); box-shadow: var(--small-shadow); font: 12px var(--mono); }
.archive-row + .archive-row { margin-top: 16px; }
html[data-theme="dark"] .archive-row { border-color: var(--line); }
.archive-row.muted { color: var(--muted); }
.archive-line { flex: 1; height: 1px; background: var(--line); }
.calendar-card { padding: 25px; border: 1px solid rgba(255, 255, 255, .65); border-radius: 28px; background: var(--surface); box-shadow: var(--raised-shadow); backdrop-filter: blur(8px); }
html[data-theme="dark"] .calendar-card { border-color: var(--line); }
.calendar-head, .calendar-foot { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.calendar-kicker { margin: 0 0 4px; color: var(--coral); font: 9px var(--mono); letter-spacing: .12em; }
.calendar-head h2 { margin: 0; font-family: var(--serif); font-size: 21px; font-weight: 500; }
.calendar-actions { display: flex; gap: 8px; }
.calendar-actions button { display: grid; width: 34px; height: 34px; place-items: center; border: 1px solid var(--line); border-radius: 11px; color: var(--moss); background: color-mix(in srgb, var(--paper) 76%, transparent); box-shadow: var(--small-shadow); cursor: pointer; }
.calendar-actions button:hover { color: var(--coral); transform: translateY(-1px); }
.calendar-weekdays, .calendar-days { display: grid; grid-template-columns: repeat(7, 1fr); gap: 7px; }
.calendar-weekdays { margin: 23px 0 8px; color: var(--muted); text-align: center; font: 9px var(--mono); }
.calendar-day { position: relative; display: grid; min-width: 0; aspect-ratio: 1; place-items: center; border: 0; border-radius: 11px; color: color-mix(in srgb, var(--muted) 72%, transparent); background: transparent; font: 10px var(--mono); }
.calendar-day:disabled { opacity: .72; }
.calendar-day.has-post { border: 1px solid color-mix(in srgb, var(--moss) 28%, transparent); color: var(--ink); background: color-mix(in srgb, var(--surface-strong) 72%, transparent); box-shadow: var(--small-shadow); cursor: pointer; }
.calendar-day.has-post:hover { border-color: var(--moss); color: var(--moss); transform: translateY(-2px); }
.calendar-day.selected { border-color: var(--moss); color: #fff; background: var(--moss); }
html[data-theme="dark"] .calendar-day.selected { border-color: var(--coral); color: var(--paper); background: var(--coral); }
.calendar-marker { position: absolute; right: 5px; bottom: 4px; display: grid; min-width: 5px; height: 5px; padding: 0 2px; place-items: center; border-radius: 5px; color: var(--paper); background: var(--coral); font: 7px/1 var(--mono); }
.calendar-marker:not(:empty) { min-width: 12px; height: 12px; }
.calendar-foot { min-height: 27px; margin-top: 18px; padding-top: 15px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.calendar-foot button { padding: 4px 8px; border: 0; color: var(--coral); background: transparent; cursor: pointer; font: 10px var(--mono); }
.calendar-actions button:focus-visible, .calendar-day:focus-visible, .calendar-foot button:focus-visible { outline: 2px solid var(--coral); outline-offset: 2px; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; margin-top: 18px; padding: 42px; border: 1px solid rgba(255, 255, 255, .62); border-radius: 28px; color: var(--muted); background: var(--surface); box-shadow: var(--raised-shadow); backdrop-filter: blur(10px); font-size: 15px; }
html[data-theme="dark"] .about-grid { border-color: var(--line); }
.about-grid p { margin: 0; }
.about-meta { font: 12px/2 var(--mono); }
.footer { display: flex; justify-content: space-between; padding: 28px 0 38px; border-top: 1px solid var(--line); color: var(--muted); font: 10px var(--mono); }

@media (max-width: 900px) {
  .site-shell { width: min(100% - 36px, 700px); }
  .intro-band { grid-template-columns: 1fr; gap: 55px; min-height: 0; }
  .intro-aside { min-height: 350px; }
  .post-list { grid-template-columns: 1fr; }
  .archive-layout { grid-template-columns: 1fr; gap: 30px; }
  .calendar-card { width: min(100%, 430px); }
}

@media (max-width: 640px) {
  .site-shell { width: calc(100% - 28px); }
  .topbar { top: 8px; height: 64px; margin-top: 8px; padding: 0 15px; border-radius: 18px; }
  .brand { font-size: 16px; }
  .brand-mark { width: 29px; height: 29px; }
  .topnav { gap: 14px; font-size: 11px; }
  .icon-button { width: 35px; height: 35px; margin-left: 13px; }
  .main-content { padding: 55px 0 80px; }
  .intro-band { padding-bottom: 62px; }
  h1 { font-size: clamp(44px, 13vw, 66px); }
  .intro-text { font-size: 15px; }
  .intro-aside { min-height: 315px; padding: 26px; border-radius: 25px; }
  .line-art { height: 165px; }
  .toolbar { display: block; padding: 17px; }
  .search-box { width: 100%; margin-top: 17px; }
  .post { padding: 24px; border-radius: 22px; }
  .post > a { min-height: 235px; }
  .post-cover { border-radius: 14px; }
  .post-title { font-size: 24px; }
  .post-card-foot { align-items: flex-end; }
  .pagination { gap: 7px; margin-top: 32px; }
  .page-numbers { gap: 5px; }
  .page-step { min-width: 42px; padding: 0 11px; font-size: 13px; }
  .page-step-label { display: none; }
  .page-number { width: 38px; min-height: 38px; }
  .page-ellipsis { width: 14px; }
  .archive-layout { gap: 24px; }
  .calendar-card { padding: 21px; border-radius: 22px; }
  .calendar-weekdays, .calendar-days { gap: 5px; }
  .about-grid { display: block; padding: 28px; }
  .about-meta { margin-top: 24px !important; }
  .footer { display: block; }
  .footer span { display: block; margin-top: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}