:root {
  color-scheme: light;
  --ink: #1f1a14;
  --ink-soft: #3a3128;
  --ink-deep: #14100d;
  --paper: #f0e6d2;
  --paper-light: #fbf6eb;
  --paper-tint: #e3d7bf;
  --line: rgba(240, 230, 210, 0.22);
  --line-dark: rgba(31, 26, 20, 0.22);
  --line-strong: rgba(240, 230, 210, 0.58);
  --line-strong-dark: rgba(31, 26, 20, 0.72);
  --red: #c40012;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --serif-en: "Playfair Display", Georgia, serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--paper);
  background:
    radial-gradient(circle at 16% 12%, rgba(196, 0, 18, 0.2), transparent 24rem),
    linear-gradient(90deg, rgba(240, 230, 210, 0.05) 1px, transparent 1px),
    var(--ink);
  background-size: auto, 88px 88px, auto;
  font-family: var(--sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 0 clamp(22px, 6vw, 96px);
  border-bottom: 1px solid var(--line);
  background: rgba(31, 26, 20, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: var(--serif-en);
  font-size: 17px;
  font-weight: 700;
}

.brand__dot {
  width: 9px;
  height: 9px;
  background: var(--red);
}

.nav {
  display: flex;
  gap: clamp(18px, 3vw, 34px);
  color: rgba(240, 230, 210, 0.72);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.nav a {
  padding: 8px 0;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--red);
}

.hero {
  min-height: calc(100svh - 76px);
  display: grid;
  grid-template-columns: minmax(120px, 0.26fr) minmax(0, 1fr);
  grid-template-rows: 1fr auto;
  column-gap: clamp(34px, 7vw, 120px);
  row-gap: 42px;
  padding: clamp(60px, 9vw, 140px) clamp(22px, 6vw, 96px)
    clamp(46px, 7vw, 92px);
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "03";
  position: absolute;
  right: clamp(22px, 6vw, 96px);
  bottom: clamp(42px, 7vw, 90px);
  color: rgba(240, 230, 210, 0.08);
  font-family: var(--serif-en);
  font-size: clamp(140px, 28vw, 420px);
  font-weight: 800;
  line-height: 0.75;
  pointer-events: none;
}

.hero__meta {
  align-self: start;
  color: rgba(240, 230, 210, 0.58);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.9;
  text-transform: uppercase;
}

.hero__meta p,
.hero__aside,
.footer p {
  margin: 0;
}

.hero__body {
  align-self: center;
  max-width: 1040px;
  position: relative;
  z-index: 1;
}

.kicker {
  margin: 0 0 26px;
  color: var(--red);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p,
button,
input,
textarea {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 960px;
  font-family: var(--serif);
  font-size: clamp(48px, 8vw, 118px);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: 0;
}

.hero__aside {
  grid-column: 2;
  max-width: 500px;
  color: rgba(240, 230, 210, 0.78);
  font-family: var(--serif);
  font-size: clamp(17px, 1.8vw, 25px);
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

.section {
  padding: clamp(76px, 11vw, 164px) clamp(22px, 6vw, 96px);
  border-top: 1px solid var(--line);
}

.section--latest {
  color: var(--ink);
  background:
    radial-gradient(circle at 86% 14%, rgba(196, 0, 18, 0.09), transparent 20rem),
    linear-gradient(90deg, rgba(31, 26, 20, 0.04) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 88px 88px, auto;
}

.section--guestbook {
  color: var(--paper);
  background: var(--ink-deep);
}

.section--about {
  color: var(--ink);
  background: var(--paper-light);
}

.section__title {
  display: grid;
  grid-template-columns: minmax(120px, 0.26fr) minmax(0, 1fr);
  column-gap: clamp(34px, 7vw, 120px);
  margin-bottom: clamp(40px, 6vw, 82px);
}

h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(34px, 5.4vw, 82px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr;
  gap: 18px;
}

.feature-card {
  position: relative;
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid rgba(240, 230, 210, 0.18);
  color: var(--paper-light);
  background:
    linear-gradient(180deg, rgba(240, 230, 210, 0.055), transparent 42%),
    #1f1a14;
  transition:
    border-color 180ms ease,
    color 180ms ease,
    transform 180ms ease,
    background 180ms ease;
}

.feature-card::before {
  content: "01";
  position: absolute;
  top: clamp(22px, 3vw, 34px);
  right: clamp(24px, 4vw, 42px);
  color: rgba(240, 230, 210, 0.1);
  font-family: var(--serif-en);
  font-size: clamp(58px, 8vw, 118px);
  font-weight: 800;
  line-height: 0.8;
  pointer-events: none;
}

.feature-card:nth-child(2) {
  background:
    linear-gradient(180deg, rgba(196, 0, 18, 0.08), transparent 44%),
    #251d17;
}

.feature-card:nth-child(2)::before {
  content: "02";
}

.feature-card:nth-child(3) {
  background:
    linear-gradient(180deg, rgba(240, 230, 210, 0.07), transparent 42%),
    #30261d;
}

.feature-card:nth-child(3)::before {
  content: "03";
}

.feature-card:hover {
  border-color: rgba(31, 26, 20, 0.38);
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 18%, rgba(196, 0, 18, 0.1), transparent 15rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.52), transparent 48%),
    var(--paper-light);
  transform: translateY(-3px);
}

.feature-card:hover::before {
  color: rgba(196, 0, 18, 0.1);
}

.feature-card--dark {
  color: var(--paper-light);
}

.feature-card--dark:hover {
  color: var(--ink);
}

.feature-card__meta,
.feature-card__link,
.column-row__num,
.article-card__meta,
.article-card__tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.feature-card__meta {
  margin-bottom: auto;
  color: var(--red);
  display: inline-flex;
  width: fit-content;
  border: 1px solid currentColor;
  padding: 7px 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.feature-card h3 {
  margin: 0 0 22px;
  font-family: var(--serif);
  font-size: clamp(26px, 3.1vw, 44px);
  font-weight: 700;
  line-height: 1.2;
}

.feature-card p {
  margin: 0;
  color: currentColor;
  font-size: 15px;
  line-height: 1.8;
  opacity: 0.72;
}

.feature-card__link {
  margin-top: 34px;
  color: var(--red);
}

.column-list,
.article-list {
  border-top: 1px solid currentColor;
}

.column-row {
  display: grid;
  grid-template-columns: minmax(70px, 0.16fr) minmax(120px, 0.26fr) minmax(0, 1fr);
  align-items: baseline;
  gap: clamp(18px, 4vw, 72px);
  padding: clamp(24px, 4vw, 46px) 0;
  border-bottom: 1px solid currentColor;
}

.column-row:hover .column-row__title {
  color: var(--red);
}

.column-row__num {
  color: rgba(31, 26, 20, 0.45);
}

.column-row__title {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 58px);
  font-weight: 700;
  transition: color 160ms ease;
}

.column-row__desc {
  color: var(--ink-soft);
  font-size: clamp(16px, 1.7vw, 22px);
  line-height: 1.8;
}

.archive-hero {
  min-height: 58svh;
}

.archive-hero::after {
  content: attr(data-num);
}

.article-list {
  display: grid;
}

.article-card {
  display: grid;
  grid-template-columns: minmax(120px, 0.24fr) minmax(0, 1fr) 80px;
  align-items: baseline;
  gap: clamp(18px, 4vw, 72px);
  padding: clamp(28px, 4.4vw, 56px) 0;
  border-bottom: 1px solid currentColor;
}

.article-card:hover h3 {
  color: var(--red);
}

.article-card__meta,
.article-card__tag {
  color: currentColor;
  opacity: 0.58;
}

.article-card h3 {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-size: clamp(24px, 3.4vw, 48px);
  font-weight: 600;
  line-height: 1.25;
  transition: color 160ms ease;
}

.article-card p {
  max-width: 780px;
  margin: 0;
  color: currentColor;
  opacity: 0.74;
  font-size: 15px;
  line-height: 1.8;
}

.article-card__tag {
  justify-self: end;
}

.guestbook {
  display: grid;
  grid-template-columns: minmax(280px, 0.52fr) minmax(0, 1fr);
  gap: clamp(34px, 6vw, 96px);
}

.message-form {
  display: grid;
  gap: 26px;
}

.message-form label {
  display: grid;
  gap: 10px;
  color: rgba(240, 230, 210, 0.64);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.message-form input,
.message-form textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  padding: 12px 0;
  color: var(--paper);
  background: transparent;
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.7;
  outline: none;
}

.message-form textarea {
  min-height: 150px;
  resize: vertical;
}

.message-form input:focus,
.message-form textarea:focus {
  border-bottom-color: var(--red);
}

.message-form label.message-form__trap {
  display: none;
}

.message-form__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 44px;
}

.message-form__footer p {
  margin: 0;
  color: rgba(31, 26, 20, 0.58);
  font-size: 13px;
  line-height: 1.6;
}

.message-form button {
  min-width: 112px;
  min-height: 42px;
  border: 1px solid var(--ink);
  border-radius: 0;
  padding: 0 18px;
  color: var(--ink);
  background: var(--paper);
  cursor: pointer;
}

.message-form button:disabled {
  cursor: wait;
  opacity: 0.5;
}

.message-list {
  border-top: 1px solid var(--line-strong);
}

.message,
.message-list__empty {
  border-bottom: 1px solid var(--line);
  padding: clamp(22px, 3.5vw, 38px) 0;
}

.message__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
  color: rgba(240, 230, 210, 0.52);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.message__name {
  color: var(--paper);
  font-family: var(--sans);
  font-size: 15px;
  letter-spacing: 0;
}

.message__content,
.message-list__empty {
  margin: 0;
  color: rgba(240, 230, 210, 0.78);
  font-family: var(--serif);
  font-size: clamp(18px, 2.2vw, 26px);
  line-height: 1.7;
}

.message__contact {
  margin: 16px 0 0;
  color: rgba(240, 230, 210, 0.55);
  font-size: 13px;
  line-height: 1.7;
}

.message__delete {
  margin-top: 18px;
  border: 0;
  border-bottom: 1px solid rgba(233, 35, 46, 0.75);
  border-radius: 0;
  padding: 0 0 3px;
  color: var(--red);
  background: transparent;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.message__delete:disabled {
  cursor: wait;
  opacity: 0.45;
}

.section--about {
  display: grid;
  grid-template-columns: minmax(120px, 0.26fr) minmax(0, 1fr);
  column-gap: clamp(34px, 7vw, 120px);
}

.section--about .kicker {
  grid-row: span 2;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 5vw, 84px);
  max-width: 980px;
  margin-top: 46px;
}

.about-grid p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 2.05;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 86px;
  padding: 0 clamp(22px, 6vw, 96px);
  border-top: 1px solid var(--line);
  color: rgba(240, 230, 210, 0.7);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.footer a {
  color: var(--paper);
}

.article-hero {
  min-height: calc(100svh - 76px);
}

.article-hero::after {
  content: attr(data-num);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(120px, 0.22fr) minmax(0, 820px) minmax(160px, 0.26fr);
  gap: clamp(28px, 5vw, 76px);
  align-items: start;
}

.article-meta-panel {
  position: sticky;
  top: 110px;
  border-top: 1px solid currentColor;
  padding-top: 18px;
  color: rgba(31, 26, 20, 0.58);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  line-height: 1.9;
  text-transform: uppercase;
}

.article-body {
  max-width: 820px;
}

.article-body .lead {
  margin: 0 0 42px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(22px, 3vw, 38px);
  line-height: 1.55;
}

.article-body h2 {
  margin: 74px 0 24px;
  font-size: clamp(32px, 4.4vw, 64px);
}

.article-body p {
  margin: 0 0 1.35em;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(18px, 1.5vw, 22px);
  line-height: 2.05;
}

.article-body blockquote {
  margin: 46px 0;
  border-left: 3px solid var(--red);
  padding: 20px 0 20px 28px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.55;
}

.article-side {
  position: sticky;
  top: 110px;
  border: 1px solid var(--line-dark);
  padding: 22px;
  color: var(--ink-soft);
  background: rgba(251, 246, 235, 0.42);
}

.article-side p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
}

@media (max-width: 920px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: 270px;
  }

  .article-card {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .article-card__tag {
    justify-self: start;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-meta-panel,
  .article-side {
    position: static;
  }
}

@media (max-width: 760px) {
  .site-header {
    min-height: 68px;
  }

  .nav {
    gap: 14px;
    font-size: 11px;
  }

  .hero,
  .section__title,
  .section--about {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 54px;
  }

  .hero::after {
    right: 18px;
    bottom: 30px;
    font-size: 180px;
  }

  .hero__body {
    align-self: start;
  }

  .hero__aside {
    grid-column: 1;
  }

  .kicker {
    margin-bottom: 18px;
  }

  h1 {
    font-size: clamp(44px, 13vw, 74px);
  }

  .column-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .guestbook {
    grid-template-columns: 1fr;
  }

  .message-form__footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .section--about .kicker {
    grid-row: auto;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-top: 22px;
    padding-bottom: 22px;
  }
}