/*
 * 创建时间: 2026-08-19
 * 更新时间: 2026-08-19
 * 文件名称: styles.css
 * 作用: 闲言落地页样式（保留 Anythings 原始简约排版）
 * 上次更新内容: 标签配色改为句子分类（诗词/动画/原创/创作/网易云），
 *               平台按钮改为 <a> 链接后补充 text-decoration 重置，
 *               更新日志行版本号加粗强调（对齐 hero__description strong 风格）
 */

:root {
  /* 颜色 */
  --color-bg: #ffffff;
  --color-bg-soft: #f5f5f7;
  --color-bg-pill: #f2f2f2;
  --color-text: #000000;
  --color-text-secondary: #6e6e73;
  --color-text-tertiary: #86868b;
  --color-border: #e5e5e5;
  --color-border-light: #f2f2f2;
  --color-primary: #000000;
  --color-primary-text: #ffffff;
  --color-accent-blue: #0071e3;
  /* 句子分类标签色（对应 Hitokoto 12 类中的高频 5 类） */
  --color-tag-poem: #0f766e;
  --color-tag-anime: #7c3aed;
  --color-tag-original: #1a73e8;
  --color-tag-create: #b45309;
  --color-tag-music: #d33a31;

  /* 字体 */
  --font-stack: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;

  /* 间距 (4 的倍数) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 32px;
  --space-8: 40px;
  --space-9: 48px;
  --space-10: 64px;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 9999px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --shadow-phone: 0 32px 80px rgba(0, 0, 0, 0.18);

  /* 尺寸 */
  --max-width: 1140px;
  --phone-width: 290px;
  --phone-height: 600px;
  --phone-scale: 0.88;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

.hero {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-5);
}

.hero__container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: start;
  padding-top: 6vh;
}

.hero__content {
  display: flex;
  flex-direction: column;
  gap: 26px;
  max-width: 520px;
}

.hero__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand__icon {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.brand__icon svg {
  width: 26px;
  height: 26px;
  color: var(--color-primary-text);
}

.hero__title {
  font-size: 54px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--color-text);
}

.hero__description {
  font-size: 19px;
  line-height: 1.45;
  color: var(--color-text-secondary);
  max-width: 460px;
  letter-spacing: -0.01em;
}

.hero__description strong {
  color: var(--color-text);
  font-weight: 600;
}

.platforms {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.platforms__btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  border: none;
  background: var(--color-bg-pill);
  color: var(--color-text);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: -0.01em;
  cursor: pointer;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease;
}

.platforms__btn:hover {
  background: #e8e8ed;
}

.platforms__btn:active {
  transform: scale(0.97);
}

.platforms__btn.is-active {
  background: var(--color-primary);
  color: var(--color-primary-text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.platforms__btn svg {
  width: 13px;
  height: 13px;
  fill: currentColor;
  opacity: 0.95;
}

.hero__promo {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.hero__promo-icon {
  font-size: 18px;
  line-height: 1.4;
  flex-shrink: 0;
}

.hero__promo strong {
  color: var(--color-text);
  font-weight: 600;
}

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-4);
}

.phone {
  position: relative;
  width: var(--phone-width);
  height: var(--phone-height);
  background: #0a0a0a;
  border-radius: 46px;
  padding: 11px;
  box-shadow:
    0 0 0 2px #1a1a1a,
    0 32px 80px rgba(0, 0, 0, 0.2),
    0 80px 120px rgba(0, 0, 0, 0.08);
  transform: scale(var(--phone-scale));
  transform-origin: center center;
}

.phone__notch {
  position: absolute;
  top: 11px;
  left: 50%;
  transform: translateX(-50%);
  width: 110px;
  height: 26px;
  background: #0a0a0a;
  border-radius: 0 0 18px 18px;
  z-index: 10;
}

.phone__notch::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
}

.phone__screen {
  width: 100%;
  height: 100%;
  background: #f8f8fa;
  border-radius: 36px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}

.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 22px 2px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
}

.status-bar__time {
  min-width: 36px;
  letter-spacing: -0.01em;
}

.status-bar__icons {
  display: flex;
  align-items: center;
  gap: 5px;
}

.status-bar__icons svg {
  width: 15px;
  height: 15px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-4) var(--space-3);
}

.app-header__start,
.app-header__end {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.app-header__btn {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  cursor: pointer;
  transition: background 0.2s ease;
}

.app-header__btn:hover {
  background: var(--color-bg-soft);
}

.app-header__btn svg {
  width: 16px;
  height: 16px;
}

.app-header__logo {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}

.app-header__logo svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary-text);
}

.app-body {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--space-4) var(--space-4);
}

.list-header {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.list-header__pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.list-header__pill svg {
  width: 13px;
  height: 13px;
  color: var(--color-text-secondary);
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.task-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: 18px;
  padding: 14px 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.task-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
}

.task-card__check {
  width: 18px;
  height: 18px;
  border: 1.5px solid #d1d1d6;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 1px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.task-card__check:hover {
  border-color: var(--color-text-secondary);
}

.task-card__content {
  flex: 1;
  min-width: 0;
}

.task-card__title {
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 3px;
  letter-spacing: -0.01em;
}

.task-card__title .tag {
  display: inline;
  background: transparent;
  font-weight: 500;
}

.task-card__meta {
  font-size: 11.5px;
  color: var(--color-text-tertiary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.task-card__meta svg {
  width: 12px;
  height: 12px;
}

.tag {
  display: inline;
  font-weight: 500;
}

.tag--poem {
  color: var(--color-tag-poem);
}

.tag--anime {
  color: var(--color-tag-anime);
}

.tag--original {
  color: var(--color-tag-original);
}

.tag--create {
  color: var(--color-tag-create);
}

.tag--music {
  color: var(--color-tag-music);
}

.completed-section {
  margin-top: var(--space-5);
}

.completed-summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--color-text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  margin-bottom: 12px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.completed-summary:hover {
  background: var(--color-bg-soft);
}

.completed-summary svg {
  width: 13px;
  height: 13px;
  color: var(--color-text-secondary);
}

.new-task-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: 18px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.new-task-card__check {
  width: 18px;
  height: 18px;
  border: 1.5px solid #d1d1d6;
  border-radius: 50%;
  flex-shrink: 0;
}

.new-task-card__text {
  font-size: 13.5px;
  color: var(--color-text-secondary);
}

.new-task-card__count {
  margin-left: auto;
  font-size: 11.5px;
  color: var(--color-text-tertiary);
}

.app-footer {
  padding: var(--space-3) var(--space-4) var(--space-5);
  background: #f8f8fa;
  border-top: 1px solid var(--color-border-light);
}

.input-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 6px 10px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.input-bar__add {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: var(--color-bg-soft);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  transition: background 0.2s ease;
}

.input-bar__add:hover {
  background: var(--color-border);
}

.input-bar__field {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 13.5px;
  color: var(--color-text);
  outline: none;
}

.input-bar__field::placeholder {
  color: var(--color-text-tertiary);
}

.input-bar__actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.input-bar__actions button {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease;
}

.input-bar__actions button:hover {
  background: var(--color-bg-soft);
}

.input-bar__actions svg {
  width: 16px;
  height: 16px;
}

.system-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  padding-top: 14px;
}

.system-nav__pill {
  width: 110px;
  height: 4px;
  background: #1a1a1a;
  border-radius: var(--radius-pill);
}

.page-footer {
  padding: var(--space-5);
  text-align: center;
  font-size: 12px;
  color: var(--color-text-tertiary);
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero__container {
    gap: var(--space-8);
  }

  .hero__title {
    font-size: 46px;
  }
}

@media (max-width: 900px) {
  .hero__container {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 4vh;
  }

  .hero__content {
    align-items: center;
    max-width: 640px;
    margin: 0 auto;
  }

  .hero__description {
    max-width: 520px;
  }

  .platforms {
    justify-content: center;
  }

  .hero__promo {
    text-align: center;
    max-width: 420px;
  }

  .hero__visual {
    order: -1;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: var(--space-6) var(--space-4);
  }

  .hero__title {
    font-size: 34px;
  }

  .hero__description {
    font-size: 17px;
  }

  :root {
    --phone-scale: 0.72;
    --phone-width: 280px;
    --phone-height: 580px;
  }

  .platforms__btn {
    font-size: 12px;
    padding: var(--space-2) var(--space-3);
  }
}

@media (max-width: 380px) {
  :root {
    --phone-scale: 0.62;
    --phone-width: 260px;
    --phone-height: 540px;
  }
}