@font-face {
  font-family: "Zhi Mang Xing Local";
  src: url("assets/fonts/ZhiMangXing-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

.footer-shortcuts {
  color: var(--cinnabar-dark);
  white-space: nowrap;
  font: 500 10px/1.4 var(--sans);
  letter-spacing: .08em;
  border-left: 1px solid var(--line);
  margin-left: 4px;
  padding-left: 18px;
}

.poem-loading {
  opacity: .72;
}

.empty-collection-copy {
  max-width: 440px;
  margin: 34px 0 0 4px;
  padding: 16px 20px;
  border-left: 3px solid #9f3f3275;
  color: var(--ink-soft);
  background: #ffffff36;
  font: 400 16px/1.9 var(--serif);
  letter-spacing: .08em;
}

.filter-favorites {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.favorite-nav-count {
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 999px;
  color: var(--cinnabar-dark);
  background: #9f3f3214;
  font: 600 10px/18px var(--sans);
  letter-spacing: 0;
}

.filter-favorites[aria-pressed="true"] .favorite-nav-count {
  color: var(--paper-light);
  background: #ffffff2b;
}

.filter-result {
  border: 0;
  cursor: pointer;
  background: transparent;
  transition: color .18s, background .18s;
}

.filter-result:not(:disabled):hover {
  color: var(--cinnabar-dark);
  background: #9f3f3209;
}

.filter-result:disabled {
  cursor: default;
  opacity: .55;
}

.filter-result-arrow {
  color: var(--cinnabar);
  font-size: 20px;
  line-height: 1;
  transition: transform .18s;
}

.filter-result:hover .filter-result-arrow {
  transform: translateX(2px);
}

.daily-trigger,
.search-trigger,
.focus-trigger {
  min-width: 76px;
  min-height: 36px;
  padding: 8px 12px;
  border: 0;
  border-radius: 999px;
  color: var(--cinnabar-dark);
  background: #9f3f320b;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font: 600 12px/1 var(--sans);
  letter-spacing: .08em;
  transition: color .18s, background .18s, box-shadow .18s;
}

.daily-trigger:hover,
.daily-trigger:focus-visible,
.search-trigger:hover,
.search-trigger:focus-visible,
.focus-trigger:hover,
.focus-trigger:focus-visible {
  color: var(--paper-light);
  background: var(--cinnabar);
  box-shadow: 0 4px 14px #68352c24;
}

.daily-trigger:disabled,
.search-trigger:disabled,
.focus-trigger:disabled {
  cursor: default;
  opacity: .5;
}

.daily-trigger {
  min-width: 68px;
  color: var(--ink-soft);
}

.daily-trigger-mark {
  width: 20px;
  height: 20px;
  border: 1px solid var(--accent-outline);
  border-radius: 2px;
  color: var(--paper-light);
  background: var(--cinnabar);
  font: 600 12px/18px var(--serif);
  letter-spacing: 0;
}

.daily-trigger[aria-pressed="true"] {
  color: var(--paper-light);
  background: var(--cinnabar);
}

.daily-trigger[aria-pressed="true"] .daily-trigger-mark {
  border-color: #ffffff66;
  background: #ffffff18;
}

.search-trigger-icon {
  font: 400 18px/1 var(--serif);
}

.focus-trigger {
  min-width: 72px;
  color: var(--ink-soft);
  background: transparent;
}

.focus-trigger-mark {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--cinnabar-dark);
  background: var(--surface);
  font: 500 11px/18px var(--serif);
  letter-spacing: 0;
}

.focus-trigger:hover .focus-trigger-mark,
.focus-trigger:focus-visible .focus-trigger-mark {
  border-color: #ffffff73;
  color: var(--paper-light);
  background: #ffffff17;
}

/* 专注模式使用独立纯原文层，正文之外只留一个触控友好的退出入口。 */
.focus-view {
  z-index: 100;
  color: var(--ink);
  background: var(--paper-art);
  background-size: 23px 21px, 31px 29px, auto, auto;
  overscroll-behavior: contain;
  position: fixed;
  inset: 0;
  overflow: hidden auto;
}

.focus-view[hidden] {
  display: none;
}

.focus-view:focus {
  outline: none;
}

.focus-view-inner {
  width: min(820px, 100%);
  min-height: 100dvh;
  margin: 0 auto;
  padding:
    max(92px, calc(env(safe-area-inset-top) + 68px))
    max(48px, env(safe-area-inset-right))
    max(92px, calc(env(safe-area-inset-bottom) + 68px))
    max(48px, env(safe-area-inset-left));
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.focus-poem-title {
  overflow-wrap: anywhere;
  text-wrap: balance;
  margin: 0;
  font: 500 clamp(50px, 6.2vw, 82px)/1.16 var(--kai);
  letter-spacing: .1em;
}

.focus-poem-title[data-long-title="true"] {
  font-size: clamp(36px, 4.7vw, 62px);
  line-height: 1.25;
}

.focus-poem-byline {
  margin: 24px 0 48px;
  color: var(--ink-soft);
  font: 400 16px/1.6 var(--serif);
  letter-spacing: .22em;
}

.focus-poem-lines {
  font: 400 clamp(22px, 2.25vw, 30px)/2 var(--serif);
  letter-spacing: .15em;
  display: grid;
  gap: .18em;
}

.focus-poem-line {
  overflow-wrap: anywhere;
  margin: 0;
}

.focus-poem-line-segment {
  display: inline;
}

.focus-exit {
  z-index: 1;
  width: 44px;
  height: 44px;
  border: 1px solid color-mix(in srgb, var(--ink-soft) 32%, transparent);
  border-radius: 50%;
  color: var(--ink-soft);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  cursor: pointer;
  opacity: .58;
  font: 300 26px/40px var(--sans);
  position: fixed;
  top: max(22px, env(safe-area-inset-top));
  right: max(22px, env(safe-area-inset-right));
  transition: opacity .18s, color .18s, border-color .18s, transform .18s;
}

.focus-exit:hover,
.focus-exit:focus-visible {
  border-color: var(--cinnabar);
  color: var(--cinnabar-dark);
  opacity: 1;
  transform: rotate(5deg);
}

.feedback-trigger {
  min-height: 32px;
  flex: none;
  padding: 4px 2px;
  border-bottom: 1px solid color-mix(in srgb, var(--cinnabar) 38%, transparent);
  color: var(--cinnabar-dark);
  background: transparent;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font: 600 11px/1 var(--sans);
  letter-spacing: .08em;
  transition: color .18s, border-color .18s, transform .18s;
}

.feedback-trigger:hover,
.feedback-trigger:focus-visible {
  color: var(--cinnabar);
  border-color: currentColor;
  transform: translateY(-1px);
  outline: 2px solid var(--focus-ring, #9f3f3221);
  outline-offset: 3px;
}

.feedback-trigger-arrow {
  font-size: 13px;
  line-height: 1;
}

.poem-meta-row {
  width: min(690px, 100%);
  margin-top: 26px;
  padding-top: 15px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.poem-meta-row .note {
  max-width: none;
  margin: 0;
  padding: 0;
  border: 0;
}

.poem-list-dialog {
  width: min(820px, calc(100vw - 48px));
  height: min(760px, calc(100dvh - 64px));
  max-width: none;
  max-height: none;
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: 3px;
  color: var(--ink);
  background: transparent;
  overflow: hidden;
  box-shadow: 0 30px 90px #1d1b1770;
}

.poem-list-dialog::backdrop {
  background: #29272075;
  backdrop-filter: blur(5px);
}

.poem-list-shell {
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 9% 15%, #70685511 0 1px, transparent 1.5px),
    radial-gradient(circle at 81% 42%, #7068550d 0 1px, transparent 1.5px),
    linear-gradient(102deg, #ffffff61, transparent 18%, #bbad8e0e 65%, transparent),
    var(--paper);
  background-size: 23px 21px, 31px 29px, auto, auto;
  border: 1px solid #80745d66;
  box-shadow: inset 0 0 70px #75644612;
}

.poem-list-header {
  flex: none;
  min-height: 126px;
  padding: 28px 34px 22px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.poem-list-kicker {
  margin-bottom: 8px;
  color: var(--cinnabar);
  font: 600 11px/1 var(--sans);
  letter-spacing: .28em;
}

.poem-list-header h2 {
  margin: 0;
  font: 500 32px/1.2 var(--kai);
  letter-spacing: .12em;
}

.poem-list-header p {
  margin: 9px 0 0;
  color: var(--ink-soft);
  font: 400 12px/1.5 var(--sans);
  letter-spacing: .08em;
}

.poem-list-close {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink-soft);
  background: #ffffff4f;
  cursor: pointer;
  font: 300 28px/1 var(--sans);
  transition: color .18s, border-color .18s, transform .18s;
}

.poem-list-close:hover {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
  transform: rotate(6deg);
}

.poem-list-search {
  flex: none;
  height: 58px;
  margin: 18px 34px 0;
  padding: 0 18px;
  border: 1px solid var(--line);
  background: #fff9;
  display: flex;
  align-items: center;
  gap: 11px;
}

.poem-list-search:focus-within {
  border-color: #9f3f3285;
  outline: 3px solid #9f3f3221;
}

.poem-list-search-icon {
  color: var(--cinnabar);
  font: 400 24px/1 var(--serif);
}

.poem-list-search input {
  width: 100%;
  min-width: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font: 400 14px/1 var(--sans);
  letter-spacing: .05em;
}

.poem-list-search input::placeholder {
  color: #777c76;
}

.poem-list {
  flex: 1 1 0;
  min-height: 0;
  margin: 18px 18px 20px 34px;
  padding-right: 16px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: start;
  gap: 10px;
  overflow: hidden auto;
  overscroll-behavior: contain;
  scrollbar-color: #5f665f7a transparent;
  scrollbar-width: thin;
}

.poem-list-item {
  min-width: 0;
  min-height: 96px;
  padding: 15px 17px;
  border: 1px solid #c9c1afbf;
  border-left: 3px solid transparent;
  border-radius: 2px;
  color: var(--ink);
  background: #fff7;
  text-align: left;
  cursor: pointer;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  transition: border-color .18s, background .18s, transform .18s, box-shadow .18s;
}

.poem-list-item:hover,
.poem-list-item:focus-visible {
  border-color: #9f3f327d;
  border-left-color: var(--cinnabar);
  background: #fffdf7e8;
  transform: translateY(-1px);
  box-shadow: 0 7px 18px #20252212;
}

.poem-list-item[aria-current="true"] {
  border-left-color: var(--cinnabar);
  background: #9f3f320a;
}

.poem-list-item-index {
  color: var(--line);
  font: 500 12px/1 var(--sans);
  letter-spacing: .04em;
}

.poem-list-item-main {
  min-width: 0;
}

.poem-list-item-title {
  display: block;
  overflow: hidden;
  color: var(--ink);
  font: 500 19px/1.35 var(--serif);
  letter-spacing: .06em;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.poem-list-item-meta {
  display: block;
  margin-top: 7px;
  overflow: hidden;
  color: var(--ink-soft);
  font: 400 11px/1.4 var(--sans);
  letter-spacing: .06em;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.poem-list-item-excerpt {
  display: block;
  margin-top: 6px;
  overflow: hidden;
  color: #5d625d;
  font: 400 12px/1.5 var(--serif);
  letter-spacing: .04em;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.poem-list-item-mark {
  color: var(--cinnabar);
  font-size: 16px;
}

.poem-list-empty {
  margin: auto;
  color: var(--ink-soft);
  font: 400 15px/1.8 var(--serif);
  letter-spacing: .12em;
}

.author-filter {
  cursor: pointer;
}

.author-dialog {
  width: min(680px, calc(100vw - 48px));
  max-width: none;
  max-height: min(720px, calc(100dvh - 64px));
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: 3px;
  color: var(--ink);
  background: transparent;
  overflow: hidden;
  box-shadow: 0 30px 90px #1d1b1770;
}

.author-dialog::backdrop {
  background: #29272075;
  backdrop-filter: blur(5px);
}

.author-dialog-shell {
  min-height: min(520px, calc(100dvh - 64px));
  max-height: min(720px, calc(100dvh - 64px));
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 12% 18%, #70685511 0 1px, transparent 1.5px),
    radial-gradient(circle at 86% 62%, #7068550d 0 1px, transparent 1.5px),
    linear-gradient(112deg, #ffffff61, transparent 24%, #bbad8e0e 72%, transparent),
    var(--paper);
  background-size: 23px 21px, 31px 29px, auto, auto;
  border: 1px solid #80745d66;
  box-shadow: inset 0 0 70px #75644612;
}

.author-dialog-header {
  flex: none;
  min-height: 142px;
  padding: 32px 38px 25px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.author-dialog-kicker {
  margin-bottom: 9px;
  color: var(--cinnabar);
  font: 600 11px/1 var(--sans);
  letter-spacing: .3em;
}

.author-dialog-header h2 {
  margin: 0;
  font: 500 38px/1.2 var(--kai);
  letter-spacing: .14em;
}

.author-dialog-header p {
  margin: 10px 0 0;
  color: var(--ink-soft);
  font: 400 12px/1.5 var(--sans);
  letter-spacing: .08em;
}

.author-dialog-close {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink-soft);
  background: #ffffff4f;
  cursor: pointer;
  font: 300 28px/1 var(--sans);
  transition: color .18s, border-color .18s, transform .18s;
}

.author-dialog-close:hover {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
  transform: rotate(6deg);
}

.author-dialog-body {
  flex: 1 1 auto;
  min-height: 0;
  padding: 30px 38px 22px;
  overflow: hidden auto;
  overscroll-behavior: contain;
  scrollbar-color: #5f665f7a transparent;
  scrollbar-width: thin;
}

.author-dialog-biography {
  margin: 0;
  color: var(--ink);
  font: 400 17px/2.05 var(--serif);
  letter-spacing: .065em;
  text-align: justify;
}

.author-dialog-source {
  margin: 24px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  color: var(--ink-soft);
  font: 400 11px/1.65 var(--sans);
  letter-spacing: .06em;
}

.author-dialog-source-link {
  color: var(--cinnabar-dark);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, currentColor 35%, transparent);
  text-underline-offset: 3px;
}

.author-dialog-source-link:hover,
.author-dialog-source-link:focus-visible {
  color: var(--cinnabar);
  text-decoration-color: currentColor;
  outline: 2px solid var(--focus-ring, #9f3f3221);
  outline-offset: 2px;
}

.author-dialog-actions {
  flex: none;
  padding: 18px 38px 28px;
}

.author-works-action {
  width: 100%;
  min-height: 56px;
  padding: 0 22px;
  border: 1px solid var(--cinnabar);
  color: var(--paper-light);
  background: var(--cinnabar);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font: 600 14px/1 var(--sans);
  letter-spacing: .12em;
  transition: background .18s, transform .18s, box-shadow .18s;
}

.author-works-action:hover,
.author-works-action:focus-visible {
  background: var(--cinnabar-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 22px #68352c24;
}

.author-works-action span:last-child {
  color: #fffbd6cc;
  font-size: 11px;
  letter-spacing: .06em;
}

/* 可替换皮肤：基础语义色与每套纸张纹理都集中在这里，避免换肤只改背景。 */
html[data-theme="xuan"] {
  --desk: #d5d0c4;
  --paper: #f4f0e5;
  --paper-deep: #e9e2d2;
  --ink: #202522;
  --ink-soft: #5f665f;
  --line: #c9c1af;
  --cinnabar: #9f3f32;
  --cinnabar-dark: #7f3027;
  --moss: #617265;
  --paper-light: #fffdf7;
  --desk-art:
    radial-gradient(circle at 15% 10%, #ffffff75, transparent 25%),
    radial-gradient(circle at 84% 92%, #5f6a6029, transparent 26%),
    linear-gradient(120deg, #6d645314, transparent 34%),
    var(--desk);
  --paper-art:
    radial-gradient(circle at 9% 15%, #70685511 0 1px, transparent 1.5px),
    radial-gradient(circle at 81% 42%, #7068550d 0 1px, transparent 1.5px),
    linear-gradient(102deg, #ffffff61, transparent 18%, #bbad8e0e 65%, transparent),
    var(--paper);
  --surface: #fffdf7b8;
  --surface-soft: #ffffff45;
  --surface-strong: #fffdf7eb;
  --accent-soft: #9f3f3214;
  --accent-outline: #9f3f3275;
  --moss-soft: #61726512;
  --moss-outline: #6172655c;
  --ink-hover: #2025220e;
  --muted-copy: #444b46;
  --placeholder: #777c76;
  --rail-art: linear-gradient(90deg, #ffffff24, transparent 26%, #00000052 94%), #4e4437;
  --paper-border: #80745d40;
  --paper-shadow: 0 20px 45px #312d2626, inset 0 0 70px #75644612;
  --paper-ring: #37403a16;
  --paper-ring-shadow: 0 0 0 26px #37403a05, 0 0 0 86px #37403a03;
  --dialog-shadow: 0 30px 90px #1d1b1770;
  --dialog-backdrop: #29272075;
  --focus-ring: #9f3f3247;
}

html[data-theme="yuebai"] {
  --desk: #b8c4cc;
  --paper: #eef2f3;
  --paper-deep: #dbe4e8;
  --ink: #1f2b32;
  --ink-soft: #586873;
  --line: #b6c3c8;
  --cinnabar: #416c84;
  --cinnabar-dark: #31566c;
  --moss: #647982;
  --paper-light: #f8fbfc;
  --desk-art:
    radial-gradient(circle at 18% 8%, #f8fdff8f, transparent 28%),
    radial-gradient(circle at 83% 86%, #5d748533, transparent 30%),
    linear-gradient(135deg, #78909f26, transparent 42%),
    var(--desk);
  --paper-art:
    radial-gradient(circle at 78% 15%, #ffffffa8 0 8%, transparent 28%),
    repeating-linear-gradient(8deg, #657d8908 0 1px, transparent 1px 18px),
    linear-gradient(120deg, #ffffff80, transparent 40%),
    var(--paper);
  --surface: #f8fcfdd1;
  --surface-soft: #ffffff59;
  --surface-strong: #fbfdfeef;
  --accent-soft: #416c8418;
  --accent-outline: #416c8475;
  --moss-soft: #64798214;
  --moss-outline: #64798266;
  --ink-hover: #1f2b320e;
  --muted-copy: #40515a;
  --placeholder: #6d7b83;
  --rail-art: linear-gradient(90deg, #ffffff3d, transparent 28%, #1626314f 94%), #405865;
  --paper-border: #677b8652;
  --paper-shadow: 0 20px 48px #2638432b, inset 0 0 76px #70838c12;
  --paper-ring: #416c8417;
  --paper-ring-shadow: 0 0 0 26px #416c8406, 0 0 0 86px #416c8403;
  --dialog-shadow: 0 30px 90px #1f303b6b;
  --dialog-backdrop: #26343d78;
  --focus-ring: #416c844f;
}

html[data-theme="qingci"] {
  --desk: #b8c8c0;
  --paper: #eef3ed;
  --paper-deep: #dce5dc;
  --ink: #23312c;
  --ink-soft: #5d6c65;
  --line: #b8c6bc;
  --cinnabar: #477665;
  --cinnabar-dark: #335c4e;
  --moss: #71866e;
  --paper-light: #f9fcf9;
  --desk-art:
    radial-gradient(circle at 12% 12%, #f7fff99c, transparent 27%),
    radial-gradient(circle at 90% 82%, #496d5e30, transparent 31%),
    linear-gradient(118deg, #6f927f1f, transparent 38%),
    var(--desk);
  --paper-art:
    radial-gradient(ellipse at 80% 15%, #d6e8df7a, transparent 31%),
    radial-gradient(circle at 12% 70%, #86a59412 0 1px, transparent 1.5px),
    linear-gradient(108deg, #ffffff8c, transparent 44%),
    var(--paper);
  --surface: #fbfefbd1;
  --surface-soft: #ffffff59;
  --surface-strong: #fbfefbed;
  --accent-soft: #47766517;
  --accent-outline: #47766572;
  --moss-soft: #71866e16;
  --moss-outline: #71866e69;
  --ink-hover: #23312c0e;
  --muted-copy: #42534b;
  --placeholder: #728078;
  --rail-art: linear-gradient(90deg, #ffffff3d, transparent 28%, #172c244a 94%), #466156;
  --paper-border: #68817452;
  --paper-shadow: 0 20px 48px #263b3229, inset 0 0 76px #66807212;
  --paper-ring: #47766519;
  --paper-ring-shadow: 0 0 0 26px #47766507, 0 0 0 86px #47766504;
  --dialog-shadow: 0 30px 90px #20372e69;
  --dialog-backdrop: #26383078;
  --focus-ring: #4776654f;
}

html[data-theme="taojian"] {
  --desk: #d9c1bd;
  --paper: #f7eeea;
  --paper-deep: #eadbd5;
  --ink: #382b2b;
  --ink-soft: #745f5d;
  --line: #d2beb8;
  --cinnabar: #a4515d;
  --cinnabar-dark: #833d49;
  --moss: #8d7664;
  --paper-light: #fffaf8;
  --desk-art:
    radial-gradient(circle at 16% 8%, #fff8f6a6, transparent 25%),
    radial-gradient(circle at 86% 90%, #935b6130, transparent 28%),
    linear-gradient(128deg, #a8787517, transparent 40%),
    var(--desk);
  --paper-art:
    radial-gradient(circle at 88% 16%, #d98f9b24 0 3px, transparent 3.5px),
    radial-gradient(circle at 84% 20%, #d98f9b1b 0 2px, transparent 2.5px),
    radial-gradient(circle at 14% 72%, #a4515d0d 0 1px, transparent 1.5px),
    linear-gradient(112deg, #ffffff8c, transparent 43%),
    var(--paper);
  --surface: #fffaf7d1;
  --surface-soft: #ffffff59;
  --surface-strong: #fffaf8ef;
  --accent-soft: #a4515d17;
  --accent-outline: #a4515d73;
  --moss-soft: #8d766414;
  --moss-outline: #8d766466;
  --ink-hover: #382b2b0e;
  --muted-copy: #5d4948;
  --placeholder: #88736f;
  --rail-art: linear-gradient(90deg, #ffffff38, transparent 28%, #351a1d45 94%), #725552;
  --paper-border: #9a746d4f;
  --paper-shadow: 0 20px 48px #4d2d3026, inset 0 0 76px #9d6e6812;
  --paper-ring: #a4515d18;
  --paper-ring-shadow: 0 0 0 26px #a4515d07, 0 0 0 86px #a4515d04;
  --dialog-shadow: 0 30px 90px #48292d69;
  --dialog-backdrop: #44303378;
  --focus-ring: #a4515d4f;
}

html[data-theme="zhuying"] {
  --desk: #bcc1ae;
  --paper: #f0f1e8;
  --paper-deep: #dfe1d0;
  --ink: #293127;
  --ink-soft: #65705f;
  --line: #c4c8b5;
  --cinnabar: #6e753e;
  --cinnabar-dark: #555f2d;
  --moss: #50664b;
  --paper-light: #fbfcf6;
  --desk-art:
    radial-gradient(circle at 13% 12%, #fbfff49c, transparent 28%),
    radial-gradient(circle at 88% 87%, #4b62442d, transparent 30%),
    linear-gradient(132deg, #6f7c4b1d, transparent 42%),
    var(--desk);
  --paper-art:
    repeating-linear-gradient(82deg, transparent 0 26px, #6b7d5d09 26px 27px, transparent 27px 54px),
    radial-gradient(ellipse at 88% 76%, #71845d16, transparent 33%),
    linear-gradient(110deg, #ffffff82, transparent 40%),
    var(--paper);
  --surface: #fbfcf7cf;
  --surface-soft: #ffffff55;
  --surface-strong: #fcfdf8ed;
  --accent-soft: #6e753e18;
  --accent-outline: #6e753e75;
  --moss-soft: #50664b14;
  --moss-outline: #50664b66;
  --ink-hover: #2931270e;
  --muted-copy: #4a5546;
  --placeholder: #788072;
  --rail-art: linear-gradient(90deg, #ffffff35, transparent 28%, #1720134a 94%), #4f5e46;
  --paper-border: #7d86624f;
  --paper-shadow: 0 20px 48px #323a2928, inset 0 0 76px #72815a12;
  --paper-ring: #50664b18;
  --paper-ring-shadow: 0 0 0 26px #50664b07, 0 0 0 86px #50664b04;
  --dialog-shadow: 0 30px 90px #2a342469;
  --dialog-backdrop: #30352b78;
  --focus-ring: #6e753e4f;
}

html[data-theme="songyan"] {
  color-scheme: dark;
  --desk: #101513;
  --paper: #202725;
  --paper-deep: #2b3330;
  --ink: #e9e4d7;
  --ink-soft: #aaa99e;
  --line: #49534e;
  --cinnabar: #c77765;
  --cinnabar-dark: #e0937f;
  --moss: #8ea58d;
  --paper-light: #17201d;
  --desk-art:
    radial-gradient(circle at 18% 10%, #5b716733, transparent 27%),
    radial-gradient(circle at 82% 88%, #9c675b1c, transparent 30%),
    linear-gradient(130deg, #72877b12, transparent 40%),
    var(--desk);
  --paper-art:
    radial-gradient(circle at 82% 14%, #e9dacb18 0 1px, transparent 1.5px),
    radial-gradient(circle at 13% 68%, #e9dacb0e 0 1px, transparent 1.5px),
    linear-gradient(112deg, #ffffff0b, transparent 45%, #00000018),
    var(--paper);
  --surface: #303936d4;
  --surface-soft: #ffffff09;
  --surface-strong: #343d3aef;
  --accent-soft: #c777651c;
  --accent-outline: #c7776585;
  --moss-soft: #8ea58d17;
  --moss-outline: #8ea58d75;
  --ink-hover: #ffffff0d;
  --muted-copy: #c5c2b6;
  --placeholder: #92978f;
  --rail-art: linear-gradient(90deg, #ffffff16, transparent 28%, #00000070 94%), #090d0c;
  --paper-border: #78837d42;
  --paper-shadow: 0 22px 54px #00000069, inset 0 0 78px #0000002e;
  --paper-ring: #c5d1c819;
  --paper-ring-shadow: 0 0 0 26px #c5d1c806, 0 0 0 86px #c5d1c803;
  --dialog-shadow: 0 30px 90px #000000a6;
  --dialog-backdrop: #070a09b8;
  --focus-ring: #c777656b;
}

html[data-font="kai"] {
  --serif: "Kaiti SC", "STKaiti", "KaiTi", "Noto Serif CJK SC", serif;
  --kai: "Kaiti SC", "STKaiti", "KaiTi", "Noto Serif CJK SC", serif;
}

html[data-font="song"] {
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", serif;
  --kai: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", serif;
}

html[data-font="fangsong"] {
  --serif: "STFangsong", "FangSong", "FangSong_GB2312", "Noto Serif CJK SC", serif;
  --kai: "STFangsong", "FangSong", "FangSong_GB2312", "Noto Serif CJK SC", serif;
}

html[data-font="sans"] {
  --serif: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --kai: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
}

html[data-font="xingshu"] {
  --serif: "Zhi Mang Xing Local", "Kaiti SC", "STKaiti", "KaiTi", serif;
  --kai: "Zhi Mang Xing Local", "Kaiti SC", "STKaiti", "KaiTi", serif;
}

html,
body,
.paper,
.poem-list-shell,
.author-dialog-shell,
.theme-dialog-shell,
.learning-dialog-shell {
  transition: background-color .28s ease, color .28s ease, border-color .28s ease;
}

html {
  background: var(--desk);
}

body {
  background: var(--desk-art);
}

button:focus-visible {
  outline-color: var(--focus-ring);
}

.scroll::before,
.scroll::after {
  background: var(--rail-art);
}

.paper,
.poem-list-shell,
.author-dialog-shell,
.theme-dialog-shell,
.learning-dialog-shell {
  background: var(--paper-art);
  background-size: 23px 21px, 31px 29px, auto, auto;
  border-color: var(--paper-border);
  box-shadow: var(--paper-shadow);
}

.paper::before {
  border-color: var(--paper-ring);
  box-shadow: var(--paper-ring-shadow);
}

.filters,
.filter-panel,
.empty-collection-copy {
  background-color: var(--surface-soft);
}

.filter:hover {
  background: var(--ink-hover);
}

.favorite-nav-count,
.daily-trigger,
.search-trigger,
.focus-trigger,
.author-filter {
  background: var(--accent-soft);
}

.daily-trigger[aria-pressed="true"] {
  background: var(--cinnabar);
}

.filter-result:not(:disabled):hover {
  background: var(--accent-soft);
}

.select-field select,
.poem-list-search,
.poem-list-close,
.author-dialog-close,
.theme-dialog-close,
.copy-action,
.favorite-action {
  background: var(--surface);
}

.empty-collection-copy,
.favorite-action {
  border-color: var(--accent-outline);
}

.favorite-action:hover {
  background: var(--accent-soft);
}

.auto-next-field {
  min-height: 42px;
  padding: 4px 5px 4px 12px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--ink-soft);
  background: var(--surface-soft);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 126px;
  align-items: center;
  justify-content: space-between;
  row-gap: 6px;
  column-gap: 10px;
}

.auto-next-title {
  min-width: 0;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font: 600 11px/1 var(--sans);
  letter-spacing: .08em;
}

.auto-next-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: 50%;
  background: var(--line);
  transition: background .18s, box-shadow .18s;
}

.auto-next-field[data-active="true"] .auto-next-dot {
  background: var(--moss);
  box-shadow: 0 0 0 3px var(--moss-soft);
}

.auto-next-field select {
  width: 100%;
  height: 32px;
  padding: 0 28px 0 9px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--ink);
  background: var(--surface);
  cursor: pointer;
  font: 500 11px/1 var(--sans);
  letter-spacing: .03em;
}

.auto-next-field select:focus-visible {
  border-color: var(--accent-outline);
  outline: 3px solid var(--focus-ring);
  outline-offset: 1px;
}

.auto-next-progress {
  grid-column: 1 / -1;
  min-width: 0;
  padding: 0 5px 2px 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 9px;
}

.auto-next-progress[hidden] {
  display: none;
}

.auto-next-progress-track {
  height: 4px;
  border-radius: 999px;
  background: var(--moss-soft);
  overflow: hidden;
}

.auto-next-progress-fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--moss);
  display: block;
  transition: width .25s linear;
}

.auto-next-remaining {
  min-width: 72px;
  color: var(--moss);
  white-space: nowrap;
  text-align: right;
  font: 600 10px/1 var(--sans);
  letter-spacing: .03em;
  font-variant-numeric: tabular-nums;
}

.poem-tag {
  background: var(--moss-soft);
  border-color: var(--moss-outline);
}

.translation-block {
  background: linear-gradient(112deg, var(--surface), transparent 62%), var(--paper-deep);
  border-color: var(--line);
  border-left-color: var(--accent-outline);
}

.translation-text,
.poem-list-item-excerpt {
  color: var(--muted-copy);
}

.poem-list-search input::placeholder {
  color: var(--placeholder);
}

.poem-list-item {
  border-color: var(--line);
  background: var(--surface);
}

.poem-list-item:hover,
.poem-list-item:focus-visible {
  border-color: var(--accent-outline);
  border-left-color: var(--cinnabar);
  background: var(--surface-strong);
}

.poem-list-item[aria-current="true"] {
  border-left-color: var(--cinnabar);
  background: var(--accent-soft);
}

.poem-list-dialog,
.author-dialog,
.theme-dialog,
.learning-dialog {
  box-shadow: var(--dialog-shadow);
}

.poem-list-dialog::backdrop,
.author-dialog::backdrop,
.theme-dialog::backdrop,
.learning-dialog::backdrop {
  background: var(--dialog-backdrop);
  backdrop-filter: blur(5px);
}

.theme-trigger {
  min-width: 76px;
  min-height: 36px;
  padding: 8px 12px;
  border: 0;
  border-radius: 999px;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font: 600 12px/1 var(--sans);
  letter-spacing: .08em;
  transition: color .18s, background .18s, box-shadow .18s;
}

.theme-trigger:hover,
.theme-trigger:focus-visible {
  color: var(--ink);
  background: var(--ink-hover);
}

.theme-trigger-swatch {
  width: 17px;
  height: 17px;
  flex: 0 0 17px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: conic-gradient(from 35deg, var(--cinnabar) 0 28%, var(--paper) 28% 68%, var(--moss) 68%);
  box-shadow: 0 0 0 2px var(--surface-soft);
}

.theme-dialog {
  width: min(880px, calc(100vw - 48px));
  max-width: none;
  max-height: min(700px, calc(100dvh - 64px));
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: 4px;
  color: var(--ink);
  background: transparent;
  overflow: hidden auto;
}

.theme-dialog-shell {
  min-height: 0;
  padding-bottom: 30px;
  border: 1px solid var(--paper-border);
}

.theme-dialog-header {
  min-height: 126px;
  padding: 28px 34px 22px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.theme-dialog-kicker {
  margin-bottom: 8px;
  color: var(--cinnabar);
  font: 600 11px/1 var(--sans);
  letter-spacing: .28em;
}

.theme-dialog-header h2 {
  margin: 0;
  font: 500 31px/1.2 var(--kai);
  letter-spacing: .1em;
}

.theme-dialog-header p {
  margin: 9px 0 0;
  color: var(--ink-soft);
  font: 400 12px/1.5 var(--sans);
  letter-spacing: .08em;
}

.theme-dialog-close {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink-soft);
  cursor: pointer;
  font: 300 28px/1 var(--sans);
  transition: color .18s, border-color .18s, transform .18s;
}

.theme-dialog-close:hover {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
  transform: rotate(6deg);
}

.theme-options {
  padding: 24px 30px 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.theme-option {
  min-width: 0;
  min-height: 132px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--ink);
  background: var(--surface);
  text-align: left;
  cursor: pointer;
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  align-items: center;
  gap: 13px;
  position: relative;
  overflow: hidden;
  transition: transform .18s, border-color .18s, background .18s, box-shadow .18s;
}

.theme-option:hover,
.theme-option:focus-visible {
  border-color: var(--accent-outline);
  background: var(--surface-strong);
  transform: translateY(-2px);
  box-shadow: 0 9px 24px #18201c1a;
}

.theme-option[aria-checked="true"] {
  border-color: var(--cinnabar);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--cinnabar);
}

.font-section,
.script-section {
  margin: 26px 30px 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.font-section-header,
.script-section-header {
  margin-bottom: 14px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}

.font-section-kicker,
.script-section-kicker {
  margin-bottom: 6px;
  color: var(--cinnabar);
  font: 600 10px/1 var(--sans);
  letter-spacing: .24em;
}

.font-section-header h3,
.script-section-header h3 {
  margin: 0;
  font: 500 22px/1.2 var(--kai);
  letter-spacing: .1em;
}

.font-section-header p,
.script-section-header p {
  margin: 0;
  color: var(--ink-soft);
  font: 400 11px/1.5 var(--sans);
  letter-spacing: .06em;
}

.font-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(108px, 1fr));
  gap: 9px;
}

.font-option {
  min-width: 0;
  min-height: 112px;
  padding: 12px 9px 10px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--ink);
  background: var(--surface);
  text-align: center;
  cursor: pointer;
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 9px;
  position: relative;
  transition: transform .18s, border-color .18s, background .18s, box-shadow .18s;
}

.font-option:hover,
.font-option:focus-visible {
  border-color: var(--accent-outline);
  background: var(--surface-strong);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px #18201c17;
}

.font-option[aria-checked="true"] {
  border-color: var(--cinnabar);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--cinnabar);
}

.font-option-preview {
  font-size: 25px;
  line-height: 1;
  letter-spacing: .06em;
}

.font-option[data-font-option="default"] .font-option-preview {
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
}

.font-option[data-font-option="kai"] .font-option-preview {
  font-family: "Kaiti SC", "STKaiti", "KaiTi", "Noto Serif CJK SC", serif;
}

.font-option[data-font-option="song"] .font-option-preview {
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
}

.font-option[data-font-option="fangsong"] .font-option-preview {
  font-family: "STFangsong", "FangSong", "FangSong_GB2312", serif;
}

.font-option[data-font-option="sans"] .font-option-preview {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-weight: 500;
}

.font-option[data-font-option="xingshu"] .font-option-preview {
  font-family: "Zhi Mang Xing Local", "Kaiti SC", "STKaiti", "KaiTi", serif;
}

.font-option-copy {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.font-option-copy strong {
  white-space: nowrap;
  font: 600 13px/1.2 var(--serif);
  letter-spacing: .04em;
}

.font-option-copy small {
  color: var(--ink-soft);
  font: 400 10px/1.3 var(--sans);
  letter-spacing: .04em;
}

.font-option-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  color: var(--paper-light);
  background: var(--cinnabar);
  font: 700 11px/20px var(--sans);
  text-align: center;
  opacity: 0;
  position: absolute;
  top: 7px;
  right: 7px;
  transform: scale(.72);
  transition: opacity .18s, transform .18s;
}

.font-option[aria-checked="true"] .font-option-check {
  opacity: 1;
  transform: scale(1);
}

.script-options {
  max-width: 440px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.script-option {
  min-width: 0;
  min-height: 78px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--ink);
  background: var(--surface);
  text-align: left;
  cursor: pointer;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  align-items: center;
  gap: 11px;
  position: relative;
  transition: transform .18s, border-color .18s, background .18s, box-shadow .18s;
}

.script-option:hover,
.script-option:focus-visible {
  border-color: var(--accent-outline);
  background: var(--surface-strong);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px #18201c17;
}

.script-option[aria-checked="true"] {
  border-color: var(--cinnabar);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--cinnabar);
}

.script-option-preview {
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--cinnabar-dark);
  background: var(--surface-strong);
  font: 500 20px/38px var(--serif);
  text-align: center;
}

.script-option-copy {
  min-width: 0;
  display: grid;
  gap: 5px;
}

.script-option-copy strong {
  font: 600 14px/1.2 var(--serif);
  letter-spacing: .06em;
}

.script-option-copy small {
  color: var(--ink-soft);
  font: 400 10px/1.2 var(--sans);
  letter-spacing: .05em;
}

.script-option-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  color: var(--paper-light);
  background: var(--cinnabar);
  font: 700 11px/20px var(--sans);
  text-align: center;
  opacity: 0;
  position: absolute;
  top: 7px;
  right: 7px;
  transform: scale(.72);
  transition: opacity .18s, transform .18s;
}

.script-option[aria-checked="true"] .script-option-check {
  opacity: 1;
  transform: scale(1);
}

.theme-option[data-theme-option="xuan"] {
  --preview-desk: #d5d0c4;
  --preview-paper: #f4f0e5;
  --preview-ink: #202522;
  --preview-accent: #9f3f32;
}

.theme-option[data-theme-option="yuebai"] {
  --preview-desk: #b8c4cc;
  --preview-paper: #eef2f3;
  --preview-ink: #1f2b32;
  --preview-accent: #416c84;
}

.theme-option[data-theme-option="qingci"] {
  --preview-desk: #b8c8c0;
  --preview-paper: #eef3ed;
  --preview-ink: #23312c;
  --preview-accent: #477665;
}

.theme-option[data-theme-option="taojian"] {
  --preview-desk: #d9c1bd;
  --preview-paper: #f7eeea;
  --preview-ink: #382b2b;
  --preview-accent: #a4515d;
}

.theme-option[data-theme-option="zhuying"] {
  --preview-desk: #bcc1ae;
  --preview-paper: #f0f1e8;
  --preview-ink: #293127;
  --preview-accent: #6e753e;
}

.theme-option[data-theme-option="songyan"] {
  --preview-desk: #101513;
  --preview-paper: #202725;
  --preview-ink: #e9e4d7;
  --preview-accent: #c77765;
}

.theme-preview {
  width: 76px;
  height: 96px;
  padding: 8px;
  border-radius: 12px 3px 3px 12px;
  background: var(--preview-desk);
  display: grid;
  place-items: center;
  position: relative;
  box-shadow: inset 5px 0 10px #00000012;
}

.theme-preview-paper {
  width: 52px;
  height: 76px;
  border: 1px solid color-mix(in srgb, var(--preview-ink) 20%, transparent);
  background:
    linear-gradient(var(--preview-ink), var(--preview-ink)) 10px 15px / 25px 2px no-repeat,
    linear-gradient(var(--preview-ink), var(--preview-ink)) 10px 23px / 32px 1px no-repeat,
    linear-gradient(var(--preview-ink), var(--preview-ink)) 10px 29px / 28px 1px no-repeat,
    var(--preview-paper);
  box-shadow: 0 5px 12px #0000001f;
}

.theme-preview-seal {
  width: 18px;
  height: 18px;
  color: var(--preview-paper);
  background: var(--preview-accent);
  border-radius: 2px;
  font: 600 10px/18px var(--kai);
  text-align: center;
  position: absolute;
  right: 13px;
  bottom: 14px;
}

.theme-option-copy {
  min-width: 0;
  display: grid;
  gap: 8px;
}

.theme-option-copy strong {
  font: 600 17px/1.25 var(--serif);
  letter-spacing: .08em;
}

.theme-option-copy small {
  color: var(--ink-soft);
  font: 400 11px/1.6 var(--sans);
  letter-spacing: .05em;
}

.theme-option-check {
  width: 23px;
  height: 23px;
  border-radius: 50%;
  color: var(--paper-light);
  background: var(--cinnabar);
  font: 700 12px/23px var(--sans);
  text-align: center;
  opacity: 0;
  position: absolute;
  top: 9px;
  right: 9px;
  transform: scale(.72);
  transition: opacity .18s, transform .18s;
}

.theme-option[aria-checked="true"] .theme-option-check {
  opacity: 1;
  transform: scale(1);
}

.secondary-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.previous-action {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--ink-soft);
  background: var(--surface);
  cursor: pointer;
  white-space: nowrap;
  font: 500 12px/1 var(--sans);
  letter-spacing: .08em;
  transition: color .18s, border-color .18s, background .18s;
}

.previous-action:hover:not(:disabled) {
  color: var(--cinnabar-dark);
  border-color: var(--cinnabar);
  background: var(--accent-soft);
}

.previous-action:disabled {
  cursor: default;
  opacity: .45;
}

.previous-label-short {
  display: none;
}

.favorite-label-short {
  display: none;
}

/* 商店截图和常见笔记本屏幕多为 1280×800；压缩纵向留白，避免侧栏说明挤到操作区。 */
@media (height <= 820px) and (width > 1120px) {
  .stage {
    padding: 24px 40px;
  }

  .scroll {
    width: min(1480px, 100vw - 80px);
    height: min(900px, 100dvh - 48px);
  }

  .masthead {
    min-height: 88px;
    padding-block: 14px;
  }

  .filter-panel {
    min-height: 62px;
    padding-block: 10px;
  }

  .content {
    padding-top: 28px;
    padding-bottom: 26px;
  }

  .context {
    padding-top: 110px;
    line-height: 1.75;
  }

  .footer {
    min-height: 48px;
    padding-block: 8px;
  }
}

@media (width <= 1120px) {
  .actions {
    grid-template-columns: minmax(0, 1fr) 168px;
  }

  .primary-actions {
    grid-column: 1;
    grid-row: 1;
  }

  .secondary-actions {
    grid-column: 2;
    grid-row: 1;
  }

  .secondary-actions .copy-action,
  .secondary-actions .previous-action {
    width: auto;
    height: 58px;
  }

  .auto-next-field {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .notice {
    grid-column: 1 / -1;
    grid-row: 3;
  }
}

@media (width <= 900px) {
  .footer-shortcuts {
    display: none;
  }
}

@media (width <= 650px) {
  .actions {
    grid-template-columns: minmax(0, 1fr) 128px;
  }

  .secondary-actions {
    gap: 6px;
  }

  .secondary-actions .copy-action,
  .secondary-actions .previous-action {
    width: auto;
    min-width: 0;
    height: 52px;
    min-height: 52px;
  }

  .previous-label-full,
  .copy-label-full {
    display: none;
  }

  .previous-label-short,
  .copy-label-short {
    display: inline;
  }

  .filters {
    gap: 3px;
  }

  .daily-trigger {
    flex: 0 0 52px;
    min-width: 0;
    min-height: 38px;
    padding-inline: 6px;
    gap: 4px;
    font-size: 11px;
  }

  .search-trigger {
    flex: 0 0 48px;
    min-width: 0;
    min-height: 38px;
    padding-inline: 7px;
    font-size: 11px;
  }

  .theme-trigger {
    flex: 0 0 62px;
    min-width: 0;
    min-height: 38px;
    padding-inline: 7px;
    gap: 5px;
    font-size: 11px;
  }

  .feedback-trigger {
    min-height: 44px;
    padding-inline: 2px;
    font-size: 11px;
    letter-spacing: .04em;
  }

  .auto-next-field {
    min-height: 40px;
    padding-left: 10px;
    grid-template-columns: minmax(0, 1fr) 118px;
  }

  .auto-next-field select {
    min-height: 34px;
  }

  .poem-meta-row {
    align-items: flex-start;
    gap: 12px;
  }

  .filter-favorites {
    gap: 2px;
  }

  .filter-result {
    min-height: 42px;
    justify-content: flex-start;
    padding-inline: 0;
  }

  .poem-list-dialog {
    width: 100vw;
    height: 100dvh;
    max-width: none;
    max-height: none;
    margin: 0;
    border-radius: 0;
  }

  .poem-list-header {
    min-height: 108px;
    padding: max(22px, env(safe-area-inset-top)) 20px 18px;
  }

  .poem-list-header h2 {
    font-size: 28px;
  }

  .poem-list-search {
    height: 52px;
    margin: 14px 18px 0;
  }

  .poem-list {
    margin: 14px 8px max(12px, env(safe-area-inset-bottom)) 18px;
    padding-right: 10px;
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .poem-list-item {
    min-height: 86px;
  }

  .author-dialog {
    width: 100vw;
    max-height: 100dvh;
    margin: 0;
    border-radius: 0;
  }

  .author-dialog-shell {
    min-height: 100dvh;
    max-height: 100dvh;
  }

  .author-dialog-header {
    min-height: 128px;
    padding: max(26px, env(safe-area-inset-top)) 22px 21px;
  }

  .author-dialog-header h2 {
    font-size: 34px;
  }

  .author-dialog-body {
    padding: 26px 22px 18px;
  }

  .author-dialog-actions {
    padding: 16px 22px max(22px, env(safe-area-inset-bottom));
  }

  .theme-dialog {
    width: 100vw;
    max-height: 100dvh;
    margin: 0;
    border-radius: 0;
  }

  .theme-dialog-shell {
    min-height: 100dvh;
    padding-bottom: max(24px, env(safe-area-inset-bottom));
  }

  .theme-dialog-header {
    min-height: 118px;
    padding: max(22px, env(safe-area-inset-top)) 20px 18px;
  }

  .theme-dialog-header h2 {
    font-size: 27px;
  }

  .theme-options {
    padding: 18px 18px 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
  }

  .theme-option {
    min-height: 126px;
    padding: 11px;
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 9px;
  }

  .theme-preview {
    width: 58px;
    height: 86px;
    padding: 7px;
  }

  .theme-preview-paper {
    width: 42px;
    height: 68px;
  }

  .theme-preview-seal {
    right: 9px;
    bottom: 12px;
  }

  .theme-option-copy strong {
    font-size: 15px;
  }

  .theme-option-copy small {
    font-size: 10px;
  }

  .font-section,
  .script-section {
    margin: 22px 18px 0;
    padding-top: 20px;
  }

  .font-section-header,
  .script-section-header {
    align-items: flex-start;
  }

  .font-options {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .font-option {
    min-height: 96px;
    grid-template-columns: 50px minmax(0, 1fr);
    justify-items: start;
    text-align: left;
  }

  .font-option-preview {
    font-size: 22px;
  }
}

@media (width <= 430px) {
  .daily-trigger,
  .search-trigger,
  .focus-trigger {
    flex-basis: 40px;
    padding-inline: 5px;
  }

  .daily-trigger-name,
  .search-trigger-name,
  .focus-trigger-name {
    display: none;
  }

  .brand-title {
    width: 1px;
    height: 1px;
    clip-path: inset(50%);
    white-space: nowrap;
    position: absolute;
    overflow: hidden;
  }

  .font-section-header p,
  .script-section-header p {
    display: none;
  }
}

/* 低高度笔记本窗口把筛选与操作收成单行，保证 800×600 仍有足够的正文阅读空间。 */
@media (height <= 680px) and (width > 650px) and (width <= 1120px) {
  .stage {
    padding: 10px;
  }

  .scroll {
    width: 100%;
    height: calc(100dvh - 20px);
    padding-inline: 12px;
  }

  .scroll::before,
  .scroll::after {
    width: 18px;
    top: 14px;
    bottom: 14px;
  }

  .masthead {
    min-height: 56px;
    padding: 7px 24px;
  }

  .brand {
    gap: 10px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
    font-size: 15px;
  }

  .brand-title {
    font-size: 21px;
  }

  .filters {
    padding: 3px;
  }

  .daily-trigger,
  .search-trigger,
  .focus-trigger,
  .theme-trigger,
  .filter {
    min-height: 34px;
    padding-block: 6px;
  }

  .filter-panel {
    min-height: 50px;
    padding: 6px 24px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr)) auto;
    gap: 8px;
  }

  .select-field {
    min-width: 0;
    max-width: none;
    display: block;
  }

  .select-field > span {
    display: none;
  }

  .select-field select {
    width: 100%;
    height: 36px;
  }

  .filter-result {
    min-width: 76px;
    margin: 0;
  }

  .clear-filter {
    display: none;
  }

  .content {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr) auto;
    gap: 6px;
    padding: 12px 24px 8px;
  }

  .folio {
    display: none;
  }

  .reading-scroll {
    grid-area: 1 / 1;
  }

  .side-panel {
    grid-area: 2 / 1;
    padding-top: 6px;
  }

  .actions {
    grid-template-columns: minmax(0, 1fr) 182px 132px;
    gap: 8px;
  }

  .primary-actions {
    grid-column: 1;
    grid-row: 1;
    gap: 8px;
  }

  .auto-next-field {
    grid-column: 2;
    grid-row: 1;
    min-height: 44px;
    padding-left: 10px;
    grid-template-columns: minmax(0, 1fr) 92px;
  }

  .auto-next-title {
    font-size: 10px;
  }

  .auto-next-field select {
    min-height: 34px;
    padding-inline: 8px 24px;
    font-size: 11px;
  }

  .secondary-actions {
    grid-column: 3;
    grid-row: 1;
    gap: 6px;
  }

  .primary,
  .favorite-action,
  .secondary-actions .copy-action,
  .secondary-actions .previous-action {
    height: 44px;
    min-height: 44px;
  }

  .previous-label-full,
  .copy-label-full {
    display: none;
  }

  .previous-label-short,
  .copy-label-short {
    display: inline;
  }

  .notice {
    clip-path: inset(50%);
    white-space: nowrap;
    width: 1px;
    height: 1px;
    padding: 0;
    position: absolute;
    overflow: hidden;
  }

  .footer {
    display: none;
  }
}

@media (width <= 390px) {
  .theme-options {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* P0：把“选库”收进次级抽屉，默认首屏只留下精读本身。 */
.library-panel {
  z-index: 2;
  flex: none;
  border-bottom: 1px solid var(--line);
  background: var(--surface-soft);
  position: relative;
}

.library-panel > summary {
  min-height: 46px;
  padding: 0 70px;
  color: var(--ink-soft);
  cursor: pointer;
  list-style: none;
  font: 600 12px/1 var(--sans);
  letter-spacing: .12em;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color .18s, background .18s;
}

.library-panel > summary::-webkit-details-marker {
  display: none;
}

.library-panel > summary::before {
  content: "卷";
  width: 24px;
  height: 24px;
  color: var(--cinnabar-dark);
  border: 1px solid var(--accent-outline);
  border-radius: 50%;
  background: var(--accent-soft);
  font: 600 10px/22px var(--serif);
  letter-spacing: 0;
  text-align: center;
}

.library-panel > summary::after {
  content: "⌄";
  margin-left: auto;
  color: var(--moss);
  font-size: 16px;
  transition: transform .18s;
}

.library-panel[open] > summary {
  color: var(--ink);
  background: var(--surface);
}

.library-panel[open] > summary::after {
  transform: rotate(180deg);
}

.library-panel > .filter-panel {
  border-top: 1px solid var(--line);
  border-bottom: 0;
}

.original-heading {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.original-heading .section-kicker {
  margin-bottom: 0;
}

.line-reading-hint {
  color: var(--ink-soft);
  font: 500 10px/1 var(--sans);
  letter-spacing: .08em;
}

.line-reading-hint::before {
  content: "·";
  margin-right: 8px;
  color: var(--cinnabar);
}

.verse-study {
  max-width: 760px;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 62%, transparent);
}

.verse-trigger {
  width: 100%;
  min-height: 48px;
  padding: 6px 10px 6px 4px;
  border: 0;
  color: var(--ink);
  background: transparent;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: color .18s, background .18s, padding .18s;
}

.verse-trigger:hover,
.verse-trigger:focus-visible,
.verse-trigger[aria-expanded="true"] {
  padding-left: 12px;
  color: var(--cinnabar-dark);
  background: linear-gradient(90deg, var(--accent-soft), transparent 82%);
}

.verse-trigger:focus-visible {
  outline-offset: -2px;
  outline: 2px solid var(--focus-ring);
}

.verse-text {
  min-width: 0;
  overflow-wrap: anywhere;
}

.verse-expand-mark {
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--moss);
  font: 400 14px/22px var(--sans);
  letter-spacing: 0;
  text-align: center;
}

.verse-reading {
  margin: 0 0 14px;
  padding: 14px 17px;
  border-left: 2px solid var(--cinnabar);
  background: linear-gradient(100deg, var(--surface), transparent 88%);
}

.line-translation {
  margin: 0;
  color: var(--muted-copy);
  font: 400 14px/1.85 var(--serif);
  letter-spacing: .035em;
}

.line-annotations {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 7px 12px;
}

.line-annotations dt {
  color: var(--cinnabar-dark);
  font: 600 12px/1.65 var(--serif);
  letter-spacing: .05em;
}

.line-annotations dd {
  margin: 0;
  color: var(--ink-soft);
  font: 400 12px/1.65 var(--sans);
  letter-spacing: .025em;
}

.eyebrow-deep::before {
  width: 18px;
}

.deep-reading-guide {
  max-width: 760px;
  margin-top: 30px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--moss);
  background: linear-gradient(112deg, var(--surface), transparent 68%), var(--paper-deep);
}

.deep-reading-summary {
  min-height: 62px;
  padding: 10px 17px;
  cursor: pointer;
  list-style: none;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
}

.deep-reading-summary::-webkit-details-marker {
  display: none;
}

.deep-reading-summary::after {
  content: "展开";
  color: var(--moss);
  font: 600 10px/1 var(--sans);
  letter-spacing: .12em;
}

.deep-reading-guide[open] .deep-reading-summary::after {
  content: "收起";
}

.deep-reading-summary-mark {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: var(--paper-light);
  background: var(--moss);
  font: 500 16px/34px var(--serif);
  letter-spacing: 0;
  text-align: center;
}

.deep-reading-summary-copy {
  font: 600 17px/1.2 var(--serif);
  letter-spacing: .12em;
}

.deep-reading-summary-hint {
  color: var(--ink-soft);
  font: 400 11px/1.4 var(--sans);
  letter-spacing: .06em;
}

.deep-reading-body {
  padding: 3px 20px 22px;
  border-top: 1px solid var(--line);
}

.deep-background {
  padding: 20px 2px 18px;
}

.deep-background h2,
.deep-sources h2 {
  margin: 0 0 9px;
  color: var(--moss);
  font: 600 12px/1.3 var(--sans);
  letter-spacing: .16em;
}

.deep-background p,
.deep-guide-card p {
  margin: 0;
  color: var(--muted-copy);
  font: 400 14px/1.9 var(--serif);
  letter-spacing: .035em;
}

.deep-guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.deep-guide-card {
  min-width: 0;
  padding: 15px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.deep-guide-card h3 {
  margin: 0 0 9px;
  color: var(--cinnabar-dark);
  font: 600 13px/1.4 var(--serif);
  letter-spacing: .08em;
}

.deep-guide-card p {
  font-size: 13px;
  line-height: 1.8;
}

.deep-sources {
  margin-top: 18px;
  padding-top: 17px;
  border-top: 1px dashed var(--line);
}

.deep-sources ul {
  margin: 0;
  display: grid;
  gap: 8px;
}

.deep-sources li {
  display: grid;
  grid-template-columns: minmax(120px, .42fr) minmax(0, 1fr);
  gap: 12px;
  color: var(--ink-soft);
  font: 400 11px/1.65 var(--sans);
}

.deep-sources li strong {
  color: var(--ink);
  font-weight: 600;
}

.deep-editorial-note {
  margin: 13px 0 0;
  color: var(--ink-soft);
  font: 400 10px/1.7 var(--sans);
  letter-spacing: .035em;
}

.learning-card {
  margin: 18px 30px 0;
  padding: 17px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--moss);
  color: var(--ink);
  background: var(--surface-soft);
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
}

.learning-card[data-status="due"] {
  border-left-color: var(--cinnabar);
  background: var(--accent-soft);
}

.learning-card[data-status="mastered"] {
  border-left-color: var(--moss);
}

.learning-card-mark {
  width: 38px;
  height: 38px;
  border: 1px solid var(--accent-outline);
  border-radius: 50%;
  color: var(--paper-light);
  background: var(--moss);
  text-align: center;
  font: 500 17px/36px var(--serif);
}

.learning-card[data-status="due"] .learning-card-mark {
  background: var(--cinnabar);
}

.learning-card-copy {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.learning-card-copy strong {
  font: 600 15px/1.4 var(--serif);
  letter-spacing: .08em;
}

.learning-card-copy span,
.learning-card-copy small {
  color: var(--ink-soft);
  font: 400 11px/1.55 var(--sans);
  letter-spacing: .025em;
}

.learning-card-copy small {
  font-size: 10px;
}

.learning-card-action,
.learning-check,
.learning-next {
  min-height: 42px;
  padding: 9px 18px;
  border: 1px solid var(--cinnabar);
  border-radius: 2px;
  color: var(--paper-light);
  background: var(--cinnabar);
  cursor: pointer;
  white-space: nowrap;
  font: 600 12px/1 var(--sans);
  letter-spacing: .08em;
  transition: color .18s, background .18s, transform .18s;
}

.learning-card-action:hover,
.learning-card-action:focus-visible,
.learning-check:hover,
.learning-check:focus-visible,
.learning-next:hover,
.learning-next:focus-visible {
  color: var(--cinnabar-dark);
  background: var(--surface);
  transform: translateY(-1px);
}

.learning-dialog {
  width: min(700px, calc(100vw - 48px));
  max-width: none;
  max-height: min(760px, calc(100dvh - 64px));
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: 4px;
  color: var(--ink);
  background: transparent;
  overflow: hidden auto;
}

.learning-dialog-shell {
  min-height: 520px;
  padding-bottom: 30px;
  border: 1px solid var(--paper-border);
}

.learning-dialog-header {
  min-height: 132px;
  padding: 28px 32px 23px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.learning-dialog-kicker {
  margin-bottom: 8px;
  color: var(--cinnabar);
  font: 600 11px/1 var(--sans);
  letter-spacing: .28em;
}

.learning-dialog-header h2 {
  margin: 0;
  font: 500 31px/1.2 var(--kai);
  letter-spacing: .1em;
}

.learning-dialog-header p {
  margin: 9px 0 0;
  color: var(--ink-soft);
  font: 400 12px/1.55 var(--sans);
  letter-spacing: .05em;
}

.learning-dialog-close {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink-soft);
  background: var(--surface);
  cursor: pointer;
  font: 300 28px/1 var(--sans);
  transition: color .18s, border-color .18s, transform .18s;
}

.learning-dialog-close:hover,
.learning-dialog-close:focus-visible {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
  transform: rotate(6deg);
}

.learning-practice {
  padding: 28px 34px 0;
}

.learning-progress-row {
  color: var(--ink-soft);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  font: 500 11px/1 var(--sans);
  letter-spacing: .08em;
}

.learning-progress-track {
  height: 3px;
  background: var(--line);
  overflow: hidden;
}

.learning-progress-fill {
  width: 0;
  height: 100%;
  background: var(--cinnabar);
  display: block;
  transition: width .24s ease;
}

.learning-prompt {
  min-height: 66px;
  margin: 34px 0 25px;
  color: var(--placeholder);
  text-align: center;
  overflow-wrap: anywhere;
  font: 500 clamp(25px, 4vw, 35px)/1.85 var(--kai);
  letter-spacing: .12em;
}

.learning-answer-field {
  display: grid;
  gap: 8px;
}

.learning-answer-field span {
  color: var(--ink-soft);
  font: 500 11px/1 var(--sans);
  letter-spacing: .1em;
}

.learning-answer-field input {
  width: 100%;
  height: 52px;
  padding: 0 15px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--ink);
  background: var(--surface);
  outline: none;
  font: 500 18px/1 var(--serif);
  letter-spacing: .08em;
}

.learning-answer-field input:focus {
  border-color: var(--cinnabar);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.learning-result {
  margin-top: 14px;
  padding: 13px 15px;
  border-left: 3px solid var(--moss);
  color: var(--ink);
  background: var(--surface-soft);
}

.learning-result[data-correct="false"] {
  border-left-color: var(--cinnabar);
}

.learning-result strong {
  font: 600 12px/1.3 var(--sans);
  letter-spacing: .08em;
}

.learning-result p {
  margin: 6px 0 0;
  color: var(--muted-copy);
  font: 500 16px/1.6 var(--serif);
  letter-spacing: .05em;
}

.learning-step-actions {
  min-height: 74px;
  padding-top: 20px;
  display: flex;
  justify-content: flex-end;
}

.learning-next {
  border-color: var(--moss);
  background: var(--moss);
}

.learning-complete {
  padding: 32px 34px 0;
  text-align: center;
}

.learning-complete-mark {
  width: 58px;
  height: 58px;
  margin: 0 auto 15px;
  border-radius: 50%;
  color: var(--paper-light);
  background: var(--moss);
  font: 500 25px/58px var(--serif);
}

.learning-complete h3 {
  margin: 0;
  font: 500 25px/1.3 var(--kai);
  letter-spacing: .1em;
}

.learning-complete > p {
  margin: 10px 0 0;
  color: var(--ink-soft);
  font: 400 12px/1.6 var(--sans);
}

.learning-ratings {
  margin: 26px 0 0;
  padding: 0;
  border: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.learning-ratings legend {
  width: 100%;
  margin-bottom: 10px;
  color: var(--ink-soft);
  font: 500 11px/1.4 var(--sans);
  letter-spacing: .06em;
}

.learning-ratings button {
  min-height: 82px;
  padding: 13px 8px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--ink);
  background: var(--surface);
  cursor: pointer;
  display: grid;
  align-content: center;
  gap: 7px;
  transition: border-color .18s, background .18s, transform .18s;
}

.learning-ratings button:hover,
.learning-ratings button:focus-visible {
  border-color: var(--cinnabar);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

.learning-ratings button:disabled {
  cursor: not-allowed;
  opacity: .42;
  transform: none;
}

.learning-ratings button strong {
  font: 600 14px/1.2 var(--serif);
  letter-spacing: .06em;
}

.learning-ratings button small {
  color: var(--ink-soft);
  font: 400 10px/1.2 var(--sans);
  letter-spacing: .05em;
}

.learning-rating-hint {
  min-height: 38px;
}

.reading-settings {
  margin: 26px 30px 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.reading-settings-header {
  margin-bottom: 14px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}

.reading-settings-kicker {
  margin-bottom: 6px;
  color: var(--cinnabar);
  font: 600 10px/1 var(--sans);
  letter-spacing: .24em;
}

.reading-settings-header h3 {
  margin: 0;
  font: 500 22px/1.2 var(--kai);
  letter-spacing: .1em;
}

.reading-settings-header p {
  margin: 0;
  color: var(--ink-soft);
  font: 400 11px/1.5 var(--sans);
  letter-spacing: .06em;
}

.reading-settings .auto-next-field {
  width: min(440px, 100%);
  min-height: 50px;
  grid-column: auto;
  grid-row: auto;
  grid-template-columns: minmax(0, 1fr) 150px;
}

@media (width <= 1120px) {
  .library-panel > summary {
    padding-inline: 36px;
  }

  .actions {
    grid-template-columns: minmax(0, 1fr) 168px;
  }

  .notice {
    grid-row: 2;
  }
}

@media (width <= 650px) {
  .library-panel > summary {
    min-height: 42px;
    padding-inline: max(16px, env(safe-area-inset-right));
  }

  .library-panel > .filter-panel {
    border-top: 1px solid var(--line);
  }

  .verse-trigger {
    min-height: 46px;
    padding-right: 4px;
  }

  .verse-reading {
    padding: 12px 13px;
  }

  .line-annotations {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .line-annotations dd + dt {
    margin-top: 7px;
  }

  .deep-reading-summary {
    grid-template-columns: 32px minmax(0, 1fr);
  }

  .deep-reading-summary-hint {
    grid-column: 2;
  }

  .deep-reading-summary::after {
    display: none;
  }

  .deep-guide-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .deep-sources li {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .learning-card {
    margin-inline: 18px;
    padding: 15px;
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 11px;
  }

  .learning-card-action {
    min-height: 44px;
    grid-column: 1 / -1;
  }

  .learning-dialog {
    width: 100vw;
    max-height: 100dvh;
    margin: 0;
    border-radius: 0;
  }

  .learning-dialog-shell {
    min-height: 100dvh;
    padding-bottom: max(24px, env(safe-area-inset-bottom));
  }

  .learning-dialog-header {
    min-height: 118px;
    padding: max(22px, env(safe-area-inset-top)) 20px 18px;
  }

  .learning-dialog-header h2 {
    font-size: 27px;
  }

  .learning-dialog-header p {
    max-width: 260px;
  }

  .learning-practice,
  .learning-complete {
    padding: 24px 20px 0;
  }

  .learning-prompt {
    margin-block: 28px 22px;
    font-size: 26px;
  }

  .learning-step-actions button {
    width: 100%;
  }

  .learning-ratings {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .learning-ratings button {
    min-height: 62px;
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .reading-settings {
    margin: 22px 18px 0;
    padding-top: 20px;
  }

  .reading-settings-header {
    align-items: flex-start;
  }

  .reading-settings-header p {
    display: none;
  }

  .reading-settings .auto-next-field {
    grid-template-columns: minmax(0, 1fr) 128px;
  }
}

@media (height <= 680px) and (width > 650px) and (width <= 1120px) {
  .actions {
    grid-template-columns: minmax(0, 1fr) 132px;
  }

  .secondary-actions {
    grid-column: 2;
  }

  .learning-dialog-header {
    min-height: 108px;
    padding-block: 21px 17px;
  }

  .learning-practice,
  .learning-complete {
    padding-top: 21px;
  }

  .learning-prompt {
    min-height: 50px;
    margin-block: 20px 16px;
    font-size: 27px;
  }

  .learning-ratings {
    margin-top: 18px;
  }
}

/* 诗词分享海报 */
.secondary-actions {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.share-action {
  min-width: 0;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--cinnabar-dark);
  background: var(--surface);
  cursor: pointer;
  font: 600 12px/1 var(--sans);
  letter-spacing: .08em;
  transition: color .18s, border-color .18s, background .18s, transform .18s;
}

.share-action:hover:not(:disabled) {
  color: var(--paper-light);
  border-color: var(--cinnabar);
  background: var(--cinnabar);
  transform: translateY(-1px);
}

.share-action:disabled {
  cursor: default;
  opacity: .45;
}

.share-label-short {
  display: none;
}

.share-dialog {
  width: min(940px, calc(100vw - 48px));
  height: min(850px, calc(100dvh - 48px));
  max-width: none;
  max-height: none;
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: 4px;
  color: var(--ink);
  background: transparent;
  overflow: hidden;
  box-shadow: var(--dialog-shadow);
}

.share-dialog::backdrop {
  background: var(--dialog-backdrop);
  backdrop-filter: blur(5px);
}

.share-dialog-shell {
  height: 100%;
  min-height: 0;
  border: 1px solid var(--paper-border);
  background: var(--paper-art);
  background-size: 23px 21px, 31px 29px, auto, auto;
  box-shadow: var(--paper-shadow);
  display: flex;
  flex-direction: column;
}

.share-dialog-header {
  flex: none;
  min-height: 120px;
  padding: 26px 32px 21px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.share-dialog-kicker {
  margin-bottom: 7px;
  color: var(--cinnabar);
  font: 600 10px/1 var(--sans);
  letter-spacing: .27em;
}

.share-dialog-header h2 {
  margin: 0;
  font: 500 31px/1.2 var(--kai);
  letter-spacing: .1em;
}

.share-dialog-header p {
  margin: 8px 0 0;
  color: var(--ink-soft);
  font: 400 12px/1.5 var(--sans);
  letter-spacing: .06em;
}

.share-dialog-close {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink-soft);
  background: var(--surface);
  cursor: pointer;
  font: 300 28px/1 var(--sans);
  transition: color .18s, border-color .18s, transform .18s;
}

.share-dialog-close:hover {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
  transform: rotate(6deg);
}

.share-dialog-body {
  min-height: 0;
  flex: 1 1 0;
  padding: 28px 32px 24px;
  display: grid;
  grid-template-columns: minmax(300px, 400px) minmax(0, 1fr);
  align-items: center;
  gap: 38px;
}

.share-preview {
  height: 100%;
  min-height: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--desk-art);
  display: grid;
  place-items: center;
  position: relative;
  box-shadow: inset 0 0 28px #00000013;
}

.share-preview canvas {
  width: auto;
  max-width: 100%;
  max-height: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  display: block;
  background: var(--paper);
  box-shadow: 0 17px 38px #1d1b1730;
}

.share-loading {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: var(--surface-strong);
  font: 600 11px/1 var(--sans);
  letter-spacing: .08em;
  position: absolute;
}

.share-loading[hidden] {
  display: none;
}

.share-dialog-copy {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  align-items: start;
  gap: 17px;
}

.share-dialog-mark {
  width: 54px;
  height: 54px;
  border: 2px solid var(--cinnabar);
  border-radius: 3px 6px 4px 5px;
  color: var(--paper-light);
  background: var(--cinnabar);
  font: 600 27px/50px var(--kai);
  text-align: center;
  transform: rotate(-2deg);
}

.share-dialog-copy h3 {
  margin: 3px 0 10px;
  font: 600 22px/1.5 var(--serif);
  letter-spacing: .08em;
}

.share-dialog-copy p {
  margin: 0;
  color: var(--ink-soft);
  font: 400 13px/1.9 var(--serif);
  letter-spacing: .045em;
}

.share-dialog-actions {
  flex: none;
  min-height: 84px;
  padding: 16px 32px 22px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.share-copy-action,
.share-download-action {
  min-width: 128px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 2px;
  cursor: pointer;
  font: 600 12px/1 var(--sans);
  letter-spacing: .09em;
}

.share-copy-action {
  border: 1px solid var(--line);
  color: var(--ink-soft);
  background: var(--surface);
}

.share-download-action {
  min-width: 176px;
  border: 1px solid var(--ink);
  color: var(--paper-light);
  background: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.share-copy-action:hover:not(:disabled) {
  color: var(--cinnabar-dark);
  border-color: var(--cinnabar);
  background: var(--accent-soft);
}

.share-download-action:hover:not(:disabled) {
  background: color-mix(in srgb, var(--ink) 88%, var(--cinnabar));
  transform: translateY(-1px);
}

.share-copy-action:disabled,
.share-download-action:disabled {
  cursor: wait;
  opacity: .5;
}

@media (width <= 1120px) {
  .share-label-full,
  .secondary-actions .previous-label-full,
  .secondary-actions .copy-label-full {
    display: none;
  }

  .share-label-short,
  .secondary-actions .previous-label-short,
  .secondary-actions .copy-label-short {
    display: inline;
  }
}

@media (width <= 700px) {
  .share-dialog {
    width: 100vw;
    height: 100dvh;
    margin: 0;
    border-radius: 0;
  }

  .share-dialog-shell {
    height: 100%;
    min-height: 100dvh;
    padding-bottom: env(safe-area-inset-bottom);
  }

  .share-dialog-header {
    min-height: 108px;
    padding: max(20px, env(safe-area-inset-top)) 20px 17px;
  }

  .share-dialog-header h2 {
    font-size: 27px;
  }

  .share-dialog-header p {
    max-width: 280px;
  }

  .share-dialog-body {
    min-height: 0;
    padding: 18px 20px;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(220px, 1fr) auto;
    gap: 18px;
  }

  .share-preview {
    padding: 12px;
  }

  .share-preview canvas {
    width: min(100%, 300px);
    max-height: 50dvh;
  }

  .share-dialog-copy {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 12px;
  }

  .share-dialog-mark {
    width: 42px;
    height: 42px;
    font-size: 22px;
    line-height: 38px;
  }

  .share-dialog-copy h3 {
    margin-top: 0;
    font-size: 17px;
  }

  .share-dialog-actions {
    min-height: 76px;
    padding: 13px 20px max(17px, env(safe-area-inset-bottom));
    display: grid;
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  }

  .share-copy-action,
  .share-download-action {
    min-width: 0;
    width: 100%;
  }
}

@media (height <= 650px) and (width > 700px) {
  .share-dialog {
    width: min(900px, calc(100vw - 32px));
    height: calc(100dvh - 24px);
  }

  .share-dialog-header {
    min-height: 92px;
    padding-block: 18px 15px;
  }

  .share-dialog-body {
    min-height: 380px;
    padding-block: 18px;
    grid-template-columns: 270px minmax(0, 1fr);
  }

  .share-preview {
    padding: 10px;
  }

  .share-preview canvas {
    width: 235px;
  }

  .share-dialog-actions {
    min-height: 68px;
    padding-block: 10px 12px;
  }
}

/* 搜索入口使用 CSS 线条绘制，避免不同平台把文本符号渲染成尺寸不一的异体字。 */
.search-trigger-icon,
.poem-list-search-icon {
  width: 19px;
  height: 19px;
  flex: 0 0 19px;
  font-size: 0;
  position: relative;
}

.search-trigger-icon::before,
.poem-list-search-icon::before {
  content: "";
  width: 11px;
  height: 11px;
  border: 2px solid currentColor;
  border-radius: 50%;
  position: absolute;
  top: 1px;
  left: 1px;
}

.search-trigger-icon::after,
.poem-list-search-icon::after {
  content: "";
  width: 7px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  position: absolute;
  right: 0;
  bottom: 2px;
  transform: rotate(45deg);
  transform-origin: center;
}

/* 手机端以“先读诗、再操作”为主：压缩顶栏，把筛选改为浮层，并保留完整触控尺寸。 */
@media (width <= 650px) {
  body {
    min-height: 100dvh;
  }

  .masthead {
    min-height: 64px;
    padding:
      max(10px, env(safe-area-inset-top))
      max(12px, env(safe-area-inset-right))
      10px
      max(12px, env(safe-area-inset-left));
    flex-direction: row;
    align-items: center;
    gap: 10px;
    background: color-mix(in srgb, var(--paper) 84%, transparent);
    backdrop-filter: blur(14px);
  }

  .brand {
    gap: 10px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
    font-size: 16px;
  }

  .brand-title {
    font-size: 19px;
    letter-spacing: .12em;
  }

  .filters {
    width: auto;
    margin-left: auto;
    padding: 0;
    border: 0;
    border-radius: 0;
    gap: 4px;
    background: transparent;
  }

  .daily-trigger,
  .search-trigger,
  .focus-trigger,
  .theme-trigger,
  .filter-favorites {
    width: 44px;
    min-width: 44px;
    min-height: 44px;
    flex: 0 0 44px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--surface);
  }

  .daily-trigger {
    gap: 0;
  }

  .daily-trigger-mark {
    width: 23px;
    height: 23px;
    font-size: 12px;
    line-height: 21px;
  }

  .theme-trigger-swatch {
    width: 19px;
    height: 19px;
    flex-basis: 19px;
  }

  /* 文案在窄屏只做视觉隐藏，按钮仍保留完整的无障碍名称。 */
  .daily-trigger-name,
  .search-trigger-name,
  .focus-trigger-name,
  #theme-trigger-name,
  .filter-favorites > span:first-child {
    width: 1px;
    height: 1px;
    clip-path: inset(50%);
    white-space: nowrap;
    position: absolute;
    overflow: hidden;
  }

  .filter-favorites {
    position: relative;
  }

  /* 不同手机系统的“♡”字形高宽差异很大，固定比例矢量图可避免心形被纵向拉长。 */
  .filter-favorites::before {
    content: "";
    width: 22px;
    height: 22px;
    background: currentColor;
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20.84 4.61a5.5 5.5 0 0 0-7.78 0L12 5.67l-1.06-1.06a5.5 5.5 0 0 0-7.78 7.78L12 21.23l8.84-8.84a5.5 5.5 0 0 0 0-7.78z' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / contain no-repeat;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20.84 4.61a5.5 5.5 0 0 0-7.78 0L12 5.67l-1.06-1.06a5.5 5.5 0 0 0-7.78 7.78L12 21.23l8.84-8.84a5.5 5.5 0 0 0 0-7.78z' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / contain no-repeat;
  }

  .filter-favorites[aria-pressed="true"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 21.23 3.16 12.39a5.5 5.5 0 0 1 7.78-7.78L12 5.67l1.06-1.06a5.5 5.5 0 0 1 7.78 7.78z' fill='black'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 21.23 3.16 12.39a5.5 5.5 0 0 1 7.78-7.78L12 5.67l1.06-1.06a5.5 5.5 0 0 1 7.78 7.78z' fill='black'/%3E%3C/svg%3E");
  }

  .favorite-nav-count {
    min-width: 17px;
    height: 17px;
    padding-inline: 4px;
    border: 1px solid var(--paper);
    font-size: 9px;
    line-height: 15px;
    position: absolute;
    top: -4px;
    right: -4px;
  }

  .library-panel {
    z-index: 12;
  }

  .library-panel > summary {
    min-height: 40px;
    padding-left: max(14px, env(safe-area-inset-left));
    padding-right: max(14px, env(safe-area-inset-right));
    font-size: 11px;
    letter-spacing: .1em;
  }

  .library-panel > summary::before {
    width: 22px;
    height: 22px;
    line-height: 20px;
  }

  .library-panel[open] > summary {
    box-shadow: 0 8px 20px #20252212;
  }

  /* 筛选打开时覆盖正文，不再把有限的手机阅读区整体向下挤。 */
  .library-panel > .filter-panel {
    max-height: calc(100dvh - 112px);
    padding:
      14px
      max(14px, env(safe-area-inset-right))
      16px
      max(14px, env(safe-area-inset-left));
    border-bottom: 1px solid var(--line);
    background: color-mix(in srgb, var(--paper) 94%, transparent);
    backdrop-filter: blur(18px);
    box-shadow: 0 22px 38px #20252226;
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    overflow: hidden auto;
  }

  .select-field {
    gap: 6px;
  }

  .select-field select {
    height: 48px;
    border-radius: 10px;
    background: var(--surface-strong);
    font-size: 14px;
  }

  .filter-result {
    min-height: 48px;
    padding-inline: 14px;
    border: 1px solid var(--line);
    border-radius: 10px;
    grid-column: 1 / -1;
    align-items: center;
    justify-content: center;
    background: var(--surface);
  }

  .clear-filter {
    min-height: 44px;
    border: 1px solid var(--line);
    border-radius: 10px;
    grid-column: 1 / -1;
    justify-self: stretch;
  }

  .content {
    padding:
      16px
      max(16px, env(safe-area-inset-right))
      0
      max(16px, env(safe-area-inset-left));
    gap: 8px;
  }

  .reading-scroll {
    scroll-padding-block: 12px 24px;
  }

  .reading-scroll,
  .library-panel > .filter-panel,
  .poem-list,
  .author-dialog-body,
  .theme-dialog,
  .learning-dialog {
    scrollbar-width: none;
  }

  .reading-scroll::-webkit-scrollbar,
  .library-panel > .filter-panel::-webkit-scrollbar,
  .poem-list::-webkit-scrollbar,
  .author-dialog-body::-webkit-scrollbar,
  .theme-dialog::-webkit-scrollbar,
  .learning-dialog::-webkit-scrollbar {
    display: none;
  }

  .poem {
    padding: 2px 2px 28px 0;
  }

  .eyebrow {
    margin-bottom: 14px;
  }

  .eyebrow::before {
    width: 22px;
  }

  .poem-title {
    font-size: clamp(43px, 13vw, 54px);
    line-height: 1.14;
    letter-spacing: .055em;
  }

  .poem-title[data-long-title="true"] {
    font-size: clamp(30px, 8.8vw, 39px);
  }

  .author-line {
    margin: 14px 0 20px 2px;
  }

  .original-heading {
    margin-bottom: 8px;
    gap: 10px;
  }

  .verse-trigger {
    min-height: 50px;
  }

  .poem-tags {
    margin-top: 20px;
  }

  .translation-block,
  .deep-reading-guide {
    margin-top: 24px;
  }

  .poem-meta-row {
    margin-top: 22px;
    padding-top: 12px;
  }

  .side-panel {
    margin-left: calc(0px - max(16px, env(safe-area-inset-left)));
    margin-right: calc(0px - max(16px, env(safe-area-inset-right)));
    padding:
      10px
      max(16px, env(safe-area-inset-right))
      max(10px, env(safe-area-inset-bottom))
      max(16px, env(safe-area-inset-left));
    background: color-mix(in srgb, var(--paper) 90%, transparent);
    backdrop-filter: blur(18px);
    box-shadow: 0 -12px 28px #20252212;
  }

  .actions {
    max-width: none;
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .primary-actions {
    grid-column: 1;
    grid-row: 1;
    grid-template-columns: minmax(100px, .72fr) minmax(150px, 1.28fr);
    gap: 8px;
  }

  .primary,
  .favorite-action {
    min-height: 52px;
    border-radius: 12px;
  }

  .primary {
    padding-inline: 17px;
  }

  .favorite-action {
    padding-inline: 10px;
    font-size: 12px;
  }

  .favorite-label-full {
    display: none;
  }

  .favorite-label-short {
    display: inline;
  }

  .secondary-actions {
    grid-column: 1;
    grid-row: 2;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .secondary-actions .previous-action,
  .secondary-actions .copy-action,
  .secondary-actions .share-action {
    width: 100%;
    height: 44px;
    min-height: 44px;
    border-radius: 10px;
  }

  .notice {
    width: max-content;
    max-width: calc(100% - 16px);
    min-height: 0;
    padding: 9px 13px;
    border: 1px solid color-mix(in srgb, var(--paper) 28%, transparent);
    border-radius: 999px;
    color: var(--paper-light);
    background: color-mix(in srgb, var(--ink) 94%, transparent);
    box-shadow: 0 10px 26px #20252230;
    white-space: nowrap;
    text-overflow: ellipsis;
    pointer-events: none;
    opacity: 0;
    position: absolute;
    right: 0;
    bottom: calc(100% + 10px);
    z-index: 4;
    overflow: hidden;
    transform: translateY(6px);
    transition: opacity .18s ease, transform .18s ease;
  }

  .notice[data-visible="true"] {
    opacity: 1;
    transform: translateY(0);
  }

  .notice-stats {
    display: none;
  }

  .poem-list-header,
  .author-dialog-header,
  .theme-dialog-header,
  .learning-dialog-header,
  .share-dialog-header {
    min-height: 96px;
    padding:
      max(17px, env(safe-area-inset-top))
      16px
      14px;
    background: color-mix(in srgb, var(--paper) 92%, transparent);
    backdrop-filter: blur(16px);
    position: sticky;
    top: 0;
    z-index: 5;
  }

  .poem-list-header h2,
  .author-dialog-header h2,
  .theme-dialog-header h2,
  .learning-dialog-header h2,
  .share-dialog-header h2 {
    font-size: 25px;
  }

  .poem-list-header p,
  .author-dialog-header p,
  .theme-dialog-header p,
  .learning-dialog-header p,
  .share-dialog-header p {
    margin-top: 6px;
    font-size: 11px;
  }

  .poem-list-close,
  .author-dialog-close,
  .theme-dialog-close,
  .learning-dialog-close,
  .share-dialog-close {
    width: 44px;
    height: 44px;
    flex-basis: 44px;
    background: var(--surface-strong);
  }

  .poem-list-search {
    height: 50px;
    margin: 12px 14px 0;
    border-radius: 12px;
  }

  .poem-list-search input,
  .learning-answer-field input {
    font-size: 16px;
  }

  .poem-list {
    margin: 12px 6px max(10px, env(safe-area-inset-bottom)) 14px;
    padding-right: 8px;
  }

  .poem-list-item {
    min-height: 100px;
    padding: 13px 14px;
    border-radius: 10px;
  }

  .author-dialog-body {
    padding: 22px 18px 16px;
  }

  .author-dialog-biography {
    font-size: 16px;
    line-height: 1.95;
  }

  .author-dialog-actions {
    padding: 12px 18px max(18px, env(safe-area-inset-bottom));
  }

  .author-works-action {
    min-height: 52px;
    border-radius: 12px;
  }

  .theme-options {
    padding: 14px 14px 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .theme-option {
    min-height: 96px;
    padding: 9px;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 8px;
    border-radius: 10px;
  }

  .theme-preview {
    width: 44px;
    height: 66px;
    padding: 5px;
  }

  .theme-preview-paper {
    width: 32px;
    height: 52px;
  }

  .theme-preview-seal {
    right: 6px;
    bottom: 8px;
  }

  .theme-option-copy {
    gap: 5px;
  }

  .theme-option-copy strong {
    font-size: 13px;
  }

  .font-section,
  .script-section,
  .reading-settings {
    margin-inline: 14px;
  }

  .font-option,
  .script-option {
    border-radius: 10px;
  }

  .reading-settings .auto-next-field {
    grid-template-columns: minmax(0, 1fr) 132px;
  }

  .auto-next-field select {
    min-height: 40px;
    font-size: 16px;
  }

  .share-dialog-body {
    padding-inline: 16px;
  }

  .share-preview canvas {
    width: auto;
    height: auto;
    max-width: min(100%, 300px);
    max-height: min(100%, 400px);
    aspect-ratio: 3 / 4;
  }

  .share-dialog-actions {
    padding-inline: 16px;
  }

  .focus-view-inner {
    padding:
      max(78px, calc(env(safe-area-inset-top) + 58px))
      max(24px, env(safe-area-inset-right))
      max(68px, calc(env(safe-area-inset-bottom) + 44px))
      max(24px, env(safe-area-inset-left));
  }

  .focus-poem-title {
    font-size: clamp(44px, 13vw, 58px);
    letter-spacing: .075em;
  }

  .focus-poem-title[data-long-title="true"] {
    font-size: clamp(31px, 9vw, 42px);
  }

  .focus-poem-byline {
    margin: 18px 0 38px;
    font-size: 15px;
  }

  .focus-poem-lines {
    font-size: clamp(20px, 6vw, 26px);
    line-height: 1.9;
    letter-spacing: .1em;
    gap: .5em;
  }

  .focus-poem-line {
    display: grid;
    justify-items: center;
    gap: .08em;
  }

  .focus-poem-line-segment {
    display: block;
    max-width: 100%;
  }

  .focus-poem-line-segment[data-single-line="true"] {
    white-space: nowrap;
  }

  .focus-poem-lines[data-density="compact"] {
    font-size: clamp(17px, 5vw, 22px);
    letter-spacing: .07em;
  }

  .focus-poem-lines[data-density="long"] {
    font-size: clamp(15px, 4.4vw, 19px);
    letter-spacing: .04em;
  }

  .focus-exit {
    top: max(14px, env(safe-area-inset-top));
    right: max(14px, env(safe-area-inset-right));
  }

  button,
  summary,
  a,
  select,
  input {
    touch-action: manipulation;
  }
}

/* 矮屏手机优先保证海报比例和下载操作，说明文案让位给可用预览空间。 */
@media (width <= 700px) and (height <= 650px) {
  .share-dialog-header {
    min-height: 88px;
    padding:
      max(12px, env(safe-area-inset-top))
      14px
      11px;
  }

  .share-dialog-header p {
    display: none;
  }

  .share-dialog-body {
    padding: 10px 14px;
    grid-template-rows: minmax(0, 1fr);
    gap: 0;
  }

  .share-preview {
    height: 100%;
    min-height: 0;
    padding: 8px;
  }

  .share-preview canvas {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    aspect-ratio: 3 / 4;
  }

  .share-dialog-copy {
    display: none;
  }

  .share-dialog-actions {
    min-height: 64px;
    padding: 8px 14px max(8px, env(safe-area-inset-bottom));
  }

  .share-copy-action,
  .share-download-action {
    min-height: 48px;
  }
}

/* 手机横屏仍按阅读器处理：去掉桌面卷轴边框，并让诗库展开时覆盖正文而非继续压缩高度。 */
@media (height <= 520px) and (width > 650px) and (width <= 950px) {
  .stage {
    height: 100dvh;
    padding: 0;
  }

  .scroll {
    width: 100%;
    height: 100dvh;
    padding: 0;
  }

  .scroll::before,
  .scroll::after {
    display: none;
  }

  .paper {
    border: 0;
  }

  .masthead {
    min-height: 48px;
    padding: 5px 14px;
  }

  .brand {
    gap: 8px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
    flex-basis: 32px;
  }

  .brand-title {
    font-size: 20px;
  }

  .daily-trigger,
  .search-trigger,
  .focus-trigger,
  .theme-trigger,
  .filter {
    min-height: 36px;
  }

  .library-panel {
    z-index: 12;
  }

  .library-panel > summary {
    min-height: 36px;
    padding-inline: 14px;
  }

  .library-panel > .filter-panel {
    max-height: calc(100dvh - 84px);
    border-bottom: 1px solid var(--line);
    background: color-mix(in srgb, var(--paper) 95%, transparent);
    backdrop-filter: blur(18px);
    box-shadow: 0 18px 34px #20252224;
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    overflow: hidden auto;
  }

  .content {
    padding: 9px 14px 0;
    gap: 5px;
  }

  .reading-scroll,
  .library-panel > .filter-panel {
    scrollbar-width: none;
  }

  .reading-scroll::-webkit-scrollbar,
  .library-panel > .filter-panel::-webkit-scrollbar {
    display: none;
  }

  .side-panel {
    padding: 5px 0 9px;
  }
}

@media (width <= 360px) {
  .brand-title {
    width: 1px;
    height: 1px;
    clip-path: inset(50%);
    white-space: nowrap;
    position: absolute;
    overflow: hidden;
  }

  .masthead {
    padding-right: max(10px, env(safe-area-inset-right));
    padding-left: max(10px, env(safe-area-inset-left));
  }

  .primary-actions {
    grid-template-columns: minmax(94px, .68fr) minmax(136px, 1.32fr);
  }
}

@media (hover: none) and (pointer: coarse) {
  .primary:hover,
  .favorite-action:hover,
  .poem-list-item:hover,
  .theme-option:hover,
  .font-option:hover,
  .script-option:hover,
  .share-action:hover:not(:disabled) {
    transform: none;
    box-shadow: none;
  }
}