/* ==========================================================================
   全民扫描 ScanFree —— 样式表
   设计原则：
     1. 手机优先，单手可操作，主要按钮都在拇指能碰到的下半屏
     2. 跟随系统深色模式，夜间扫描不刺眼
     3. 只用系统字体，不下载任何字体文件（离线也要秒开）
     4. 全部变量集中在 :root，想换配色只改这一处
   ========================================================================== */

:root {
  --brand: #0f766e;
  --brand-2: #10b981;
  --brand-soft: rgba(16, 185, 129, 0.12);
  --danger: #e11d48;
  --warning: #f59e0b;

  --bg: #f4f5f7;
  --bg-elev: #ffffff;
  --bg-sunken: #eceef1;
  --stage: #16181d;
  --text: #16181d;
  --text-2: #5b6270;
  --text-3: #8b93a1;
  --line: rgba(15, 23, 42, 0.09);
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 8px 24px rgba(16, 24, 40, 0.08);
  --shadow-lg: 0 12px 48px rgba(16, 24, 40, 0.22);

  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --topbar-h: 54px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);

  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101216;
    --bg-elev: #191c22;
    --bg-sunken: #0b0d10;
    --text: #eef1f5;
    --text-2: #a4acba;
    --text-3: #79818f;
    --line: rgba(255, 255, 255, 0.09);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.6);
  }
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  height: 100%;
  overscroll-behavior: none;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

.hidden-input {
  position: fixed;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}
.noscript {
  padding: 40px 24px;
  text-align: center;
}

.app {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  height: 100vh;
  background: var(--bg);
}

/* ------------------------------- 顶栏 ------------------------------- */

.topbar {
  flex: 0 0 auto;
  padding-top: var(--safe-top);
  background: var(--bg-elev);
  border-bottom: 1px solid var(--line);
  z-index: 20;
}
.topbar__inner {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 8px;
}
.topbar__title {
  flex: 1;
  min-width: 0;
  font-size: 17px;
  font-weight: 650;
  letter-spacing: 0.2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar__sub {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0;
}
.topbar--brand .topbar__title {
  font-size: 19px;
  background: linear-gradient(96deg, var(--brand), var(--brand-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.iconbtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 40px;
  height: 40px;
  padding: 0 9px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s;
}
.iconbtn:hover {
  background: var(--bg-sunken);
}
.iconbtn:active {
  transform: scale(0.94);
}
.iconbtn--primary {
  color: #fff;
  background: var(--brand);
}
.iconbtn:disabled {
  opacity: 0.4;
  cursor: default;
}
.iconbtn__label {
  font-size: 13px;
  font-weight: 600;
}

/* ------------------------------- 主区域 ------------------------------- */

.view {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  outline: none;
}
.view--flush {
  overflow: hidden;
}

/* ------------------------------- 首页 ------------------------------- */

.hero {
  margin: 14px 14px 6px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
  color: #fff;
  box-shadow: var(--shadow);
}
.hero h2 {
  margin: 0 0 4px;
  font-size: 19px;
  font-weight: 700;
}
.hero p {
  margin: 0;
  font-size: 13px;
  opacity: 0.92;
  line-height: 1.6;
}
.hero__actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}
.hero .btn {
  flex: 1;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(6px);
  height: 46px;
  font-weight: 650;
}
.hero .btn--solid {
  background: #fff;
  color: var(--brand);
  border-color: #fff;
}

.searchbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 14px;
  padding: 0 12px;
  height: 42px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text-3);
}
.searchbar input {
  flex: 1;
  border: 0;
  background: transparent;
  outline: none;
  font-size: 14px;
}

.section-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 6px 18px;
  font-size: 13px;
  font-weight: 650;
  color: var(--text-2);
}
.section-title em {
  font-style: normal;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-3);
}

.doclist {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  padding: 6px 14px 120px;
}
.doccard {
  position: relative;
  border-radius: var(--radius);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.12s ease;
}
.doccard:active {
  transform: scale(0.975);
}
.doccard__thumb {
  position: relative;
  aspect-ratio: 3 / 4;
  background: var(--bg-sunken);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.doccard__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}
.doccard__badge {
  position: absolute;
  right: 8px;
  bottom: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.62);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  backdrop-filter: blur(4px);
}
.doccard__meta {
  padding: 9px 11px 11px;
}
.doccard__title {
  font-size: 13.5px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.doccard__date {
  margin-top: 2px;
  font-size: 11.5px;
  color: var(--text-3);
}

.empty {
  padding: 40px 30px 120px;
  text-align: center;
  color: var(--text-2);
}
.empty__ico {
  width: 84px;
  height: 84px;
  margin: 0 auto 16px;
  border-radius: 26px;
  display: grid;
  place-items: center;
  background: var(--brand-soft);
  color: var(--brand-2);
}
.empty h3 {
  margin: 0 0 6px;
  font-size: 16px;
  color: var(--text);
}
.empty p {
  margin: 0 auto;
  max-width: 320px;
  font-size: 13px;
  line-height: 1.7;
}
.steps {
  display: grid;
  gap: 10px;
  margin: 22px auto 0;
  max-width: 330px;
  text-align: left;
}
.step {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 11px 13px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.step b {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-size: 12px;
}
.step span {
  font-size: 13px;
  color: var(--text-2);
}

.fab {
  position: fixed;
  right: 18px;
  bottom: calc(20px + var(--safe-bottom));
  display: flex;
  align-items: center;
  gap: 8px;
  height: 54px;
  padding: 0 22px 0 18px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  font-size: 15px;
  font-weight: 650;
  box-shadow: 0 10px 30px rgba(15, 118, 110, 0.42);
  cursor: pointer;
  z-index: 15;
}
.fab:active {
  transform: scale(0.96);
}

/* ------------------------------- 编辑器 ------------------------------- */

.editor {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}
.editor__stage {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  background: var(--stage);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.editor__stage img {
  max-width: 100%;
  max-height: 100%;
  display: block;
  box-shadow: 0 6px 26px rgba(0, 0, 0, 0.5);
  background: #fff;
}
.editor__stage .busy {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(10, 12, 16, 0.55);
  color: #fff;
  font-size: 13px;
  gap: 12px;
}
.editor__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 62px;
  border: 0;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.42);
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  opacity: 0.75;
}
.editor__nav--prev {
  left: 8px;
}
.editor__nav--next {
  right: 8px;
}
.editor__nav:disabled {
  opacity: 0.15;
}
.editor__counter {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  backdrop-filter: blur(6px);
}
.editor__strip {
  flex: 0 0 auto;
  display: flex;
  gap: 8px;
  padding: 9px 12px;
  overflow-x: auto;
  background: var(--bg-elev);
  border-top: 1px solid var(--line);
  scrollbar-width: none;
}
.editor__strip::-webkit-scrollbar {
  display: none;
}
.pagethumb {
  position: relative;
  flex: 0 0 auto;
  width: 46px;
  height: 60px;
  padding: 0;
  border-radius: 8px;
  border: 2px solid transparent;
  background: var(--bg-sunken);
  overflow: hidden;
  cursor: pointer;
}
.pagethumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.pagethumb.is-active {
  border-color: var(--brand-2);
}
.pagethumb--add {
  display: grid;
  place-items: center;
  color: var(--text-3);
  border: 2px dashed var(--line);
}

.toolbar {
  flex: 0 0 auto;
  display: flex;
  align-items: stretch;
  justify-content: space-around;
  padding: 6px 4px calc(6px + var(--safe-bottom));
  background: var(--bg-elev);
  border-top: 1px solid var(--line);
}
.tool {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 8px 2px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--text-2);
  font-size: 11.5px;
  cursor: pointer;
}
.tool:active {
  background: var(--bg-sunken);
}
.tool.is-active {
  color: var(--brand-2);
}
.tool:disabled {
  opacity: 0.35;
}
.tool--accent {
  color: var(--brand);
  font-weight: 650;
}

/* ------------------------------ 滤镜条 ------------------------------ */

.filterbar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 8px calc(10px + var(--safe-bottom));
  background: rgba(18, 20, 25, 0.92);
  backdrop-filter: blur(14px);
  transform: translateY(110%);
  transition: transform 0.22s ease;
  z-index: 12;
}
.filterbar.show {
  transform: translateY(0);
}
.filterbar__row {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 0 6px 4px;
  scrollbar-width: none;
}
.filterbar__row::-webkit-scrollbar {
  display: none;
}
.filterchip {
  flex: 0 0 auto;
  width: 70px;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  font-size: 11.5px;
  cursor: pointer;
  padding: 0;
}
.filterchip__box {
  width: 70px;
  height: 86px;
  border-radius: 10px;
  overflow: hidden;
  border: 2px solid transparent;
  background: #2a2d34;
  margin-bottom: 5px;
  display: grid;
  place-items: center;
}
.filterchip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}
.filterchip.is-active {
  color: #fff;
  font-weight: 650;
}
.filterchip.is-active .filterchip__box {
  border-color: var(--brand-2);
}
.filterbar__hint {
  padding: 2px 12px 0;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.55);
  text-align: center;
}

/* ------------------------------ 裁剪界面 ------------------------------ */

.cropper {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #101014;
}
.cropper__stage {
  flex: 1 1 auto;
  min-height: 0;
  position: relative;
}
.cropper__canvas {
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: crosshair;
}
.cropper__tips {
  position: absolute;
  left: 0;
  right: 0;
  top: 10px;
  text-align: center;
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  pointer-events: none;
}
.cropper__actions {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px calc(14px + var(--safe-bottom));
  background: #16181d;
}
.cropper__actions .btn {
  flex: 1;
}

/* ------------------------------ 文字识别 ------------------------------ */

.ocr {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}
.ocr__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-elev);
  font-size: 12.5px;
  color: var(--text-2);
}
.ocr__bar select {
  border: 1px solid var(--line);
  background: var(--bg);
  border-radius: 8px;
  padding: 4px 6px;
}
.ocr__body {
  flex: 1 1 auto;
  min-height: 0;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ocr__text {
  flex: 1 1 auto;
  min-height: 160px;
  width: 100%;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev);
  resize: none;
  line-height: 1.75;
  font-size: 14.5px;
  outline: none;
}
.ocr__text:focus {
  border-color: var(--brand-2);
}
.ocr__row {
  display: flex;
  gap: 10px;
}
.ocr__row .btn {
  flex: 1;
}
/* 引擎选择那一行：按钮不该被拉长，radio 之间要贴紧 */
.ocr__row--engine {
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.ocr__row--engine .btn {
  flex: 0 0 auto;
}
.engine__free {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--brand-2);
  color: #fff;
  font-size: 11px;
  font-style: normal;
  vertical-align: 1px;
}

.engine {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-2);
  cursor: pointer;
  user-select: none;
}
.engine input[type='radio'] {
  width: 16px;
  height: 16px;
  accent-color: var(--brand);
  margin: 0;
}
.engine:has(input:disabled) {
  opacity: 0.45;
  cursor: not-allowed;
}
.ocr__note {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.6;
}
.ocr__note b {
  color: var(--text-2);
}

/* ------------------------------ 设置 ------------------------------ */

.settings {
  padding: 8px 0 60px;
}
.group {
  margin: 12px 14px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.group__title {
  padding: 11px 14px 4px;
  font-size: 12px;
  font-weight: 650;
  color: var(--text-3);
  letter-spacing: 0.4px;
}
.row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-top: 1px solid var(--line);
}
.group__title + .row {
  border-top: 0;
}
.row__label {
  flex: 1;
  min-width: 0;
  font-size: 14px;
}
.row__label em {
  display: block;
  font-style: normal;
  font-size: 12px;
  color: var(--text-3);
  margin-top: 2px;
  line-height: 1.5;
}
.row select,
.row input[type='text'] {
  max-width: 168px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg);
  outline: none;
}
.row input[type='range'] {
  max-width: 150px;
}
.row--tap {
  cursor: pointer;
}
.row--tap:active {
  background: var(--bg-sunken);
}
.row__value {
  font-size: 13px;
  color: var(--text-3);
}
.row__danger {
  color: var(--danger);
  font-weight: 600;
  justify-content: center;
}

.about {
  padding: 18px 20px 0;
  text-align: center;
  font-size: 12.5px;
  color: var(--text-3);
  line-height: 1.8;
}
.about b {
  color: var(--text-2);
}

/* ------------------------------ 相机 ------------------------------ */

.camera {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: #000;
  display: flex;
  flex-direction: column;
}
.camera[hidden] {
  display: none;
}
.camera__viewport {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.camera__video {
  max-width: 100%;
  max-height: 100%;
  display: block;
}
.camera__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(to right, transparent 33.2%, rgba(255, 255, 255, 0.22) 33.3%, transparent 33.4%, transparent 66.5%, rgba(255, 255, 255, 0.22) 66.6%, transparent 66.7%),
    linear-gradient(to bottom, transparent 33.2%, rgba(255, 255, 255, 0.22) 33.3%, transparent 33.4%, transparent 66.5%, rgba(255, 255, 255, 0.22) 66.6%, transparent 66.7%);
}
.camera__flash {
  position: absolute;
  inset: 0;
  background: #fff;
  opacity: 0;
  pointer-events: none;
}
.camera__flash.fire {
  animation: flash 0.28s ease-out;
}
@keyframes flash {
  0% {
    opacity: 0.9;
  }
  100% {
    opacity: 0;
  }
}
.camera__top {
  position: absolute;
  top: calc(8px + var(--safe-top));
  left: 8px;
  right: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: #fff;
}
.camera__hint {
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  font-size: 12px;
  backdrop-filter: blur(6px);
}
.camera__bottom {
  flex: 0 0 auto;
  padding: 14px 20px calc(20px + var(--safe-bottom));
  background: #000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.shutter {
  position: relative;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  border: 4px solid rgba(255, 255, 255, 0.85);
  background: #fff;
  cursor: pointer;
  flex: 0 0 auto;
}
.shutter:active {
  transform: scale(0.93);
}
.shutter:disabled {
  opacity: 0.5;
}
.camera__side {
  width: 58px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: #fff;
  font-size: 10.5px;
}
.camera__side .iconbtn {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  width: 46px;
  height: 46px;
}
.camera__thumbs {
  display: flex;
  gap: 6px;
  max-width: 120px;
  overflow: hidden;
}
.camera__thumbs img {
  width: 40px;
  height: 52px;
  object-fit: cover;
  border-radius: 6px;
  border: 1.5px solid rgba(255, 255, 255, 0.65);
}
.camera--error .camera__viewport {
  color: #fff;
  text-align: center;
  padding: 30px;
}

/* ------------------------------ 遮罩 / 弹窗 ------------------------------ */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(8, 10, 14, 0.55);
  backdrop-filter: blur(3px);
}
.overlay.show {
  display: flex;
}
.overlay__box {
  width: min(280px, 78vw);
  padding: 26px 22px 22px;
  border-radius: var(--radius-lg);
  background: var(--bg-elev);
  box-shadow: var(--shadow-lg);
  text-align: center;
}
.overlay__text {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
}
.overlay__bar {
  display: none;
  height: 6px;
  margin-top: 12px;
  border-radius: 999px;
  background: var(--bg-sunken);
  overflow: hidden;
}
.overlay__bar i {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  transition: width 0.25s ease;
}
.overlay__pct {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-3);
}

.spinner {
  width: 34px;
  height: 34px;
  margin: 0 auto;
  border: 3px solid var(--brand-soft);
  border-top-color: var(--brand-2);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.18s ease;
}
.modal.show {
  opacity: 1;
}
.modal__mask {
  position: absolute;
  inset: 0;
  background: rgba(8, 10, 14, 0.5);
  backdrop-filter: blur(2px);
}
.modal__panel {
  position: relative;
  width: min(400px, 100%);
  max-height: 84vh;
  overflow-y: auto;
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--bg-elev);
  box-shadow: var(--shadow-lg);
  transform: translateY(8px) scale(0.98);
  transition: transform 0.18s ease;
}
.modal.show .modal__panel {
  transform: none;
}
.modal--sheet {
  align-items: flex-end;
  padding: 0;
}
.modal--sheet .modal__panel {
  width: 100%;
  max-width: 560px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 18px 14px calc(14px + var(--safe-bottom));
  transform: translateY(20px);
}
.modal.show.modal--sheet .modal__panel {
  transform: none;
}
.modal__title {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 650;
}
.modal__msg {
  margin: 0 0 6px;
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.7;
}
.modal__actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}
.modal__actions .btn {
  flex: 1;
}
.sheet {
  display: grid;
  gap: 2px;
  margin-top: 4px;
}
.sheet__item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 13px 12px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  text-align: left;
  cursor: pointer;
  color: inherit;
}
.sheet__item:active {
  background: var(--bg-sunken);
}
.sheet__item.is-danger {
  color: var(--danger);
}
.sheet__ico {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--brand-soft);
  color: var(--brand-2);
  flex: 0 0 auto;
}
.sheet__item.is-danger .sheet__ico {
  background: rgba(225, 29, 72, 0.12);
  color: var(--danger);
}
.sheet__label {
  font-size: 15px;
  font-weight: 550;
}
.sheet__desc {
  display: block;
  font-style: normal;
  font-size: 11.5px;
  color: var(--text-3);
  font-weight: 450;
  margin-top: 1px;
}
.sheet__cancel {
  width: 100%;
  margin-top: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-elev);
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.btn:active {
  transform: scale(0.98);
}
.btn:disabled {
  opacity: 0.45;
}
.btn--primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  border-color: transparent;
  color: #fff;
}
.btn--ghost {
  background: transparent;
}
.btn--danger {
  background: var(--danger);
  border-color: transparent;
  color: #fff;
}
.btn--block {
  width: 100%;
}
/* 提醒用户"这里要你点一下"（在线识别不会自动上传，必须手动触发） */
.btn--pulse {
  animation: btn-pulse 1.6s ease-in-out 3;
  box-shadow: 0 0 0 0 rgba(15, 118, 110, 0.5);
}
@keyframes btn-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(15, 118, 110, 0.45);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(15, 118, 110, 0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .btn--pulse {
    animation: none;
    outline: 2px solid var(--brand);
    outline-offset: 2px;
  }
}

.input {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg);
  outline: none;
  resize: vertical;
}
.input:focus {
  border-color: var(--brand-2);
}

/* ------------------------------ 提示条 ------------------------------ */

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(84px + var(--safe-bottom));
  transform: translate(-50%, 12px);
  max-width: 82vw;
  padding: 11px 18px;
  border-radius: 12px;
  background: rgba(22, 24, 29, 0.94);
  color: #fff;
  font-size: 13.5px;
  line-height: 1.5;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 100;
  backdrop-filter: blur(8px);
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}
.toast--success {
  background: rgba(15, 118, 110, 0.96);
}
.toast--error {
  background: rgba(190, 18, 60, 0.96);
}
.toast--warn {
  background: rgba(180, 83, 9, 0.96);
}

/* ------------------------------ 通用小件 ------------------------------ */

.ico {
  display: block;
  flex: 0 0 auto;
}
.spread {
  flex: 1;
}
.tag {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 6px;
  background: var(--brand-soft);
  color: var(--brand-2);
  font-size: 11px;
  font-weight: 650;
}
.center-note {
  padding: 28px 22px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
  line-height: 1.8;
}
.pv {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #fff;
}

@media (min-width: 720px) {
  .doclist {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    padding-bottom: 140px;
  }
  .view {
    max-width: 980px;
    margin: 0 auto;
    width: 100%;
  }
  .fab {
    right: 50%;
    transform: translateX(50%);
  }
  .fab:active {
    transform: translateX(50%) scale(0.96);
  }
}