/*
Theme Name: YISHU.TECH
Description: 雅安奕数科技有限公司官网主题（Block Theme）
Version: 1.0.0
Requires at least: 6.6
Tested up to: 6.7
Requires PHP: 8.2
Text Domain: yishu-tech
*/

:root {
  color-scheme: light;

  --yishu-anchor-offset: clamp(4.75rem, 10vh, 6.25rem);

  --background: #ffffff;
  --foreground: #0a0a0a;

  --card: #ffffff;
  --card-foreground: #0a0a0a;

  --muted: #f6f7f9;
  --muted-foreground: #52525b;

  --border: #e4e4e7;
  --input: #e4e4e7;

  --primary: #0a0a0a;
  --primary-foreground: #ffffff;

  --brand: #0a0a0a;
  --brand-foreground: #ffffff;

  --secondary: #f4f4f5;
  --secondary-foreground: #0a0a0a;

  --accent: #f4f4f5;
  --accent-foreground: #0a0a0a;

  --destructive: #ef4444;
  --destructive-foreground: #ffffff;

  --ring: #2563eb;

  --scrollbar-thumb: rgba(0, 0, 0, 0.25);
  --scrollbar-thumb-hover: rgba(0, 0, 0, 0.35);

  --accent-blue: #2563eb;
  --accent-cyan: #06b6d4;
  --accent-purple: #a855f7;
  --accent-red: #ef4444;

  --radius-sm: 0.85rem;
  --radius-md: 1.1rem;
  --radius-lg: 1.35rem;
  --radius-xl: 1.75rem;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 36px 76px rgba(0, 0, 0, 0.18);

  --ring-outline: 2px solid color-mix(in srgb, var(--ring) 85%, transparent);
  --ring-offset: 2px;

  --yishu-gutter: clamp(1rem, 3vw, 2.25rem);
  --yishu-content-size: var(--wp--style--global--content-size, 1200px);
  --yishu-wide-size: var(--wp--style--global--wide-size, 1440px);

  --yishu-ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --yishu-ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --yishu-glass: color-mix(in srgb, var(--background) 78%, transparent);
  --yishu-glass-strong: color-mix(in srgb, var(--background) 90%, transparent);
  --yishu-glass-border: color-mix(in srgb, var(--border) 72%, transparent);
  --yishu-glow-soft: 0 18px 60px rgba(37, 99, 235, 0.12);

  --yishu-body-bg:
    radial-gradient(
      1200px 760px at 20% -10%,
      color-mix(in srgb, var(--accent-blue) 14%, transparent) 0%,
      transparent 60%
    ),
    radial-gradient(
      980px 720px at 80% 0%,
      color-mix(in srgb, var(--accent-purple) 12%, transparent) 0%,
      transparent 62%
    ),
    var(--background);

  --yishu-hero-bg:
    radial-gradient(
      60% 60% at 50% 0%,
      color-mix(in srgb, var(--accent-blue) 16%, transparent) 0%,
      transparent 65%
    ),
    linear-gradient(to bottom, var(--background), var(--muted));

  --yishu-hero-spotlight-opacity: 0.85;
  --yishu-hero-spotlight-saturate: 1.1;

  --yishu-header-backdrop: blur(12px);
  --yishu-card-backdrop: blur(14px);
  --yishu-overlay-backdrop: blur(16px);
}

:where([id]) {
  scroll-margin-top: var(--yishu-anchor-offset);
}

html.dark {
  color-scheme: dark;

  --background: #000000;
  --foreground: #ffffff;

  --card: #0a0a0a;
  --card-foreground: #ffffff;

  --muted: #0f1419;
  --muted-foreground: #71767b;

  --border: #202327;
  --input: #202327;

  --accent-blue: #1d9bf0;
  --accent-cyan: #1d9bf0;
  --accent-purple: #1d9bf0;
  --accent-red: #f4212e;

  --primary: var(--accent-blue);
  --primary-foreground: #ffffff;

  --brand: #0a0a0a;
  --brand-foreground: #ffffff;

  --secondary: #0f1419;
  --secondary-foreground: #ffffff;

  --accent: #0f1419;
  --accent-foreground: #ffffff;

  --destructive: #f4212e;
  --destructive-foreground: #ffffff;

  --ring: #1d9bf0;

  --scrollbar-thumb: rgba(255, 255, 255, 0.18);
  --scrollbar-thumb-hover: rgba(255, 255, 255, 0.28);

  --radius-sm: 0.75rem;
  --radius-md: 0.95rem;
  --radius-lg: 1.15rem;
  --radius-xl: 1.45rem;

  --shadow-sm: 0 1px 0 rgba(255, 255, 255, 0.06);
  --shadow-md: 0 18px 40px rgba(0, 0, 0, 0.72);
  --shadow-lg: 0 56px 128px rgba(0, 0, 0, 0.86);

  --yishu-glass: color-mix(in srgb, var(--background) 96%, transparent);
  --yishu-glass-strong: color-mix(in srgb, var(--background) 98%, transparent);
  --yishu-glass-border: color-mix(in srgb, var(--border) 96%, transparent);
  --yishu-glow-soft: 0 26px 90px rgba(29, 155, 240, 0.22);

  --yishu-body-bg:
    radial-gradient(
      1000px 720px at 50% -15%,
      color-mix(in srgb, var(--accent-blue) 20%, transparent) 0%,
      transparent 62%
    ),
    var(--background);

  --yishu-hero-bg:
    radial-gradient(
      60% 60% at 50% 0%,
      color-mix(in srgb, var(--accent-blue) 14%, transparent) 0%,
      transparent 70%
    ),
    linear-gradient(to bottom, var(--background), color-mix(in srgb, var(--muted) 78%, transparent));

  --yishu-hero-spotlight-opacity: 0.62;
  --yishu-hero-spotlight-saturate: 0.95;

  --yishu-header-backdrop: none;
  --yishu-card-backdrop: none;
  --yishu-overlay-backdrop: none;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-padding-top: var(--yishu-anchor-offset);
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

::selection {
  background: color-mix(in srgb, var(--ring) 25%, transparent);
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}

body {
  margin: 0;
  overflow-x: hidden;
  overflow-x: clip;
  background: var(--yishu-body-bg);
  color: var(--foreground);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wp-site-blocks {
  min-height: 100dvh;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

:where(a, button, input, textarea, select, summary):focus-visible {
  outline: var(--ring-outline);
  outline-offset: var(--ring-offset);
}

:where(img, svg, video) {
  max-width: 100%;
  height: auto;
}

.wp-block-site-title a {
  text-decoration: none;
}

.wp-block-site-title {
  margin: 0;
  letter-spacing: -0.02em;
}

.wp-block-site-title a {
  font-weight: 850;
  background: linear-gradient(180deg, var(--foreground), color-mix(in srgb, var(--foreground) 65%, transparent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.yishu-container {
  width: min(var(--yishu-wide-size), 100% - (var(--yishu-gutter) * 2));
  margin-inline: auto;
}

:where(.is-layout-constrained) > :where(.yishu-container) {
  max-width: none;
}

:where(.is-layout-constrained) > :where(.yishu-hero, .yishu-section, .yishu-ticker):not(.yishu-container) {
  width: 100vw;
  max-width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  width: 100dvw;
  max-width: 100dvw;
  margin-left: calc(50% - 50dvw);
  margin-right: calc(50% - 50dvw);
}

.yishu-skip-link {
  position: absolute;
  left: -9999px;
  top: 1rem;
}
.yishu-skip-link:focus {
  left: 1rem;
  z-index: 1000;
  padding: 0.5rem 0.75rem;
  border-radius: 0.75rem;
  background: var(--background);
  color: var(--foreground);
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.yishu-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  background: transparent;
  isolation: isolate;
  transition: border-color 220ms var(--yishu-ease-out), box-shadow 220ms var(--yishu-ease-out);
}
.yishu-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--yishu-glass);
  backdrop-filter: var(--yishu-header-backdrop);
  z-index: -1;
  transition: background 220ms var(--yishu-ease-out), backdrop-filter 220ms var(--yishu-ease-out);
}
.yishu-header.is-scrolled {
  border-bottom-color: color-mix(in srgb, var(--border) 72%, transparent);
  box-shadow: var(--shadow-md);
}
.yishu-header.is-scrolled::before {
  background: var(--yishu-glass-strong);
}

.yishu-scroll-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: var(--yishu-scroll-progress, 0%);
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue), var(--accent-purple));
  opacity: 0.95;
  transform-origin: left;
}

.yishu-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.yishu-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.yishu-brand .wp-block-site-title {
  font-size: 1.05rem;
}
.yishu-brand__logo {
  width: 2.25rem;
  height: 2.25rem;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  overflow: visible;
  display: grid;
  place-items: center;
}
.yishu-brand__logo a {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
}
.yishu-brand__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 0;
}

.yishu-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.95rem;
}
.yishu-nav a {
  color: color-mix(in srgb, var(--foreground) 70%, transparent);
  text-decoration: none;
  position: relative;
}
.yishu-nav a:focus-visible {
  color: var(--foreground);
}
.yishu-nav a:focus-visible::after {
  transform: scaleX(1);
}
@media (hover: hover) and (pointer: fine) {
  .yishu-nav a:hover {
    color: var(--foreground);
  }
  .yishu-nav a:hover::after {
    transform: scaleX(1);
  }
}
.yishu-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 100%;
  height: 1px;
  background: currentColor;
  opacity: 0.35;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms var(--yishu-ease-out);
}
.yishu-nav a[aria-current="page"] {
  color: var(--foreground);
}
.yishu-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.yishu-nav .wp-block-navigation__responsive-container-open,
.yishu-nav .wp-block-navigation__responsive-container-close {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
  background: color-mix(in srgb, var(--background) 78%, transparent);
  color: var(--foreground);
  box-shadow: var(--shadow-sm);
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  transition:
    transform 180ms var(--yishu-ease-out),
    box-shadow 180ms var(--yishu-ease-out),
    background 180ms var(--yishu-ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .yishu-nav .wp-block-navigation__responsive-container-open:hover,
  .yishu-nav .wp-block-navigation__responsive-container-close:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    background: color-mix(in srgb, var(--muted) 62%, transparent);
  }
}
.yishu-nav .wp-block-navigation__responsive-container-open svg,
.yishu-nav .wp-block-navigation__responsive-container-close svg {
  width: 1.1rem;
  height: 1.1rem;
}

.yishu-nav .wp-block-navigation__responsive-container.is-menu-open {
  position: fixed;
  top: var(--wp-admin--admin-bar--height, 0px);
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1000;
  padding: 1.25rem;
  background: color-mix(in srgb, var(--background) 82%, transparent);
  backdrop-filter: var(--yishu-overlay-backdrop);
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}
.yishu-nav .wp-block-navigation__responsive-container-content {
  margin-top: 1rem;
}
.yishu-nav .wp-block-navigation__container {
  gap: 0.5rem;
}
.yishu-nav .wp-block-navigation-item__content {
  display: block;
  padding: 0.85rem 0.9rem;
  border-radius: var(--radius-sm);
}
.yishu-nav .wp-block-navigation-item__content:focus-visible {
  background: color-mix(in srgb, var(--muted) 62%, transparent);
}
@media (hover: hover) and (pointer: fine) {
  .yishu-nav .wp-block-navigation-item__content:hover {
    background: color-mix(in srgb, var(--muted) 62%, transparent);
  }
}

@media (min-width: 1024px) {
  .yishu-nav .wp-block-navigation-item.has-child,
  .yishu-nav .wp-block-navigation-submenu {
    position: relative;
  }

  .yishu-nav .wp-block-navigation__submenu-icon {
    width: 1.9rem;
    height: 1.9rem;
    padding: 0;
    border-radius: 0.7rem;
    border: 1px solid transparent;
    background: transparent;
    color: color-mix(in srgb, var(--foreground) 70%, transparent);
    display: inline-grid;
    place-items: center;
    cursor: pointer;
    transition:
      background 180ms var(--yishu-ease-out),
      border-color 180ms var(--yishu-ease-out),
      color 180ms var(--yishu-ease-out);
  }
  .yishu-nav .wp-block-navigation__submenu-icon svg {
    width: 0.95rem;
    height: 0.95rem;
    transition: transform 180ms var(--yishu-ease-out);
  }

  .yishu-nav .wp-block-navigation-item.has-child:hover > .wp-block-navigation__submenu-icon,
  .yishu-nav .wp-block-navigation-item.has-child:focus-within > .wp-block-navigation__submenu-icon,
  .yishu-nav .wp-block-navigation-submenu:hover > .wp-block-navigation__submenu-icon,
  .yishu-nav .wp-block-navigation-submenu:focus-within > .wp-block-navigation__submenu-icon {
    background: color-mix(in srgb, var(--muted) 62%, transparent);
    border-color: color-mix(in srgb, var(--border) 88%, transparent);
    color: var(--foreground);
  }

  .yishu-nav .wp-block-navigation-item.has-child:hover > .wp-block-navigation__submenu-icon svg,
  .yishu-nav .wp-block-navigation-item.has-child:focus-within > .wp-block-navigation__submenu-icon svg,
  .yishu-nav .wp-block-navigation-submenu:hover > .wp-block-navigation__submenu-icon svg,
  .yishu-nav .wp-block-navigation-submenu:focus-within > .wp-block-navigation__submenu-icon svg,
  .yishu-nav .wp-block-navigation-item.has-child.is-open > .wp-block-navigation__submenu-icon svg,
  .yishu-nav .wp-block-navigation-submenu.is-open > .wp-block-navigation__submenu-icon svg {
    transform: rotate(180deg);
  }

  .yishu-nav .wp-block-navigation__submenu-container {
    position: absolute;
    top: calc(100% + 0.55rem);
    left: 0;
    z-index: 60;
    display: block;
    min-width: 14rem;
    padding: 0.45rem;
    margin: 0;
    border-radius: var(--radius-md);
    border: 1px solid var(--yishu-glass-border);
    background: var(--yishu-glass-strong);
    backdrop-filter: var(--yishu-overlay-backdrop);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translate3d(0, 10px, 0) scale(0.98);
    transform-origin: top left;
    pointer-events: none;
    transition:
      opacity 180ms var(--yishu-ease-out),
      transform 180ms var(--yishu-ease-out),
      visibility 0ms linear 180ms;
  }
  .yishu-nav .wp-block-navigation-item.has-child:hover > .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-item.has-child:focus-within > .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-submenu:hover > .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-submenu:focus-within > .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-item.has-child.is-open > .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-submenu.is-open > .wp-block-navigation__submenu-container {
    opacity: 1;
    visibility: visible;
    transform: translate3d(0, 0, 0) scale(1);
    pointer-events: auto;
    transition:
      opacity 180ms var(--yishu-ease-out),
      transform 180ms var(--yishu-ease-out),
      visibility 0ms;
  }

  .yishu-nav .wp-block-navigation__submenu-icon[aria-expanded="true"] svg {
    transform: rotate(180deg);
  }

  .yishu-nav .wp-block-navigation__submenu-icon[aria-expanded="true"] ~ .wp-block-navigation__submenu-container {
    opacity: 1;
    visibility: visible;
    transform: translate3d(0, 0, 0) scale(1);
    pointer-events: auto;
    transition:
      opacity 180ms var(--yishu-ease-out),
      transform 180ms var(--yishu-ease-out),
      visibility 0ms;
  }

  .yishu-nav .wp-block-navigation__submenu-container a::after {
    content: none;
  }
  .yishu-nav .wp-block-navigation__submenu-container .wp-block-navigation-item__content {
    padding: 0.65rem 0.75rem;
    border-radius: var(--radius-sm);
  }
}

.yishu-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

@media (max-width: 782px) {
  :root {
    --yishu-header-backdrop: none;
    --yishu-card-backdrop: none;
    --yishu-overlay-backdrop: none;
  }

  .yishu-nav .wp-block-navigation__responsive-container.is-menu-open {
    padding-top: calc(1.25rem + env(safe-area-inset-top));
    padding-bottom: calc(1.25rem + env(safe-area-inset-bottom));
  }
}

@media (max-width: 520px) {
  .yishu-header__inner {
    gap: 0.75rem;
  }

  .yishu-brand .wp-block-site-title {
    display: none;
  }

  .yishu-actions {
    gap: 0.5rem;
  }

  .yishu-actions .wp-block-buttons .wp-block-button__link {
    padding: 0.7rem 0.9rem;
    white-space: nowrap;
  }
}

.yishu-theme-toggle {
  width: 2.5rem;
  height: 2.5rem;
  display: inline-grid;
  place-items: center;
  border-radius: 0.9rem;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--background) 80%, transparent);
  color: var(--foreground);
  cursor: pointer;
  transition:
    background 180ms var(--yishu-ease-out),
    transform 180ms var(--yishu-ease-out),
    box-shadow 180ms var(--yishu-ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .yishu-theme-toggle:hover {
    background: color-mix(in srgb, var(--muted) 60%, transparent);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
  }
}
.yishu-theme-toggle:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}
.yishu-theme-toggle__icon {
  display: none;
  line-height: 0;
}
.yishu-theme-toggle[data-mode="auto"] .yishu-theme-toggle__icon--auto {
  display: inline-flex;
}
.yishu-theme-toggle[data-mode="light"] .yishu-theme-toggle__icon--sun {
  display: inline-flex;
}
.yishu-theme-toggle[data-mode="dark"] .yishu-theme-toggle__icon--moon {
  display: inline-flex;
}

.wp-element-button,
.wp-block-button__link {
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
  background: var(--primary);
  color: var(--primary-foreground);
  padding: 0.85rem 1.15rem;
  font-weight: 720;
  letter-spacing: -0.01em;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition:
    transform 180ms var(--yishu-ease-out),
    box-shadow 180ms var(--yishu-ease-out),
    background 180ms var(--yishu-ease-out),
    border-color 180ms var(--yishu-ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .wp-element-button:hover,
  .wp-block-button__link:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
  }
}
.wp-element-button:active,
.wp-block-button__link:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}
.wp-block-button.is-style-outline .wp-block-button__link {
  background: color-mix(in srgb, var(--background) 72%, transparent);
  color: var(--foreground);
  border-color: color-mix(in srgb, var(--border) 90%, transparent);
}
@media (hover: hover) and (pointer: fine) {
  .wp-block-button.is-style-outline .wp-block-button__link:hover {
    background: color-mix(in srgb, var(--muted) 62%, transparent);
  }
}

.wp-element-button.yishu-button--secondary {
  background: color-mix(in srgb, var(--background) 72%, transparent);
  color: var(--foreground);
  border-color: color-mix(in srgb, var(--border) 90%, transparent);
}
@media (hover: hover) and (pointer: fine) {
  .wp-element-button.yishu-button--secondary:hover {
    background: color-mix(in srgb, var(--muted) 62%, transparent);
  }
}

.yishu-hero {
  --yishu-mx: 50%;
  --yishu-my: 10%;
  position: relative;
  overflow: hidden;
  display: grid;
  align-items: center;
  padding: clamp(5.75rem, 7vw, 7.5rem) 0 clamp(3.75rem, 4.2vw, 5rem);
  min-height: 100vh;
  min-height: 100svh;
  background: var(--yishu-hero-bg);
}
.yishu-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: radial-gradient(
    circle at 1px 1px,
    color-mix(in srgb, var(--muted-foreground) 30%, transparent) 1px,
    transparent 0
  );
  background-size: 20px 20px;
  opacity: 0.55;
  mask-image: linear-gradient(to bottom right, rgba(255, 255, 255, 0.95), transparent 70%);
  pointer-events: none;
  animation: yishu-grid-drift 18s ease-in-out infinite alternate;
}

.yishu-hero::after {
  content: "";
  position: absolute;
  inset: -25%;
  z-index: 0;
  background:
    radial-gradient(
      760px circle at var(--yishu-mx) var(--yishu-my),
      color-mix(in srgb, var(--accent-cyan) 22%, transparent) 0%,
      transparent 62%
    ),
    radial-gradient(
      720px circle at calc(var(--yishu-mx) - 18%) calc(var(--yishu-my) + 18%),
      color-mix(in srgb, var(--accent-blue) 18%, transparent) 0%,
      transparent 66%
    ),
    radial-gradient(
      640px circle at calc(var(--yishu-mx) + 22%) calc(var(--yishu-my) + 10%),
      color-mix(in srgb, var(--accent-purple) 16%, transparent) 0%,
      transparent 70%
    );
  opacity: var(--yishu-hero-spotlight-opacity, 0.85);
  pointer-events: none;
  filter: saturate(var(--yishu-hero-spotlight-saturate, 1.1));
}

.yishu-hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 var(--yishu-gutter);
}

.yishu-breadcrumbs {
  margin: 0 0 0.85rem;
  font-size: 0.85rem;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
}
.yishu-breadcrumbs ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  justify-content: flex-start;
}
.yishu-hero__content .yishu-breadcrumbs ol {
  justify-content: center;
}
.yishu-breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}
.yishu-breadcrumbs__item + .yishu-breadcrumbs__item::before {
  content: "/";
  opacity: 0.55;
}
.yishu-breadcrumbs__link {
  text-decoration: none;
  color: inherit;
}
.yishu-breadcrumbs__link:focus-visible {
  color: var(--foreground);
}
@media (hover: hover) and (pointer: fine) {
  .yishu-breadcrumbs__link:hover {
    color: var(--foreground);
  }
}
.yishu-breadcrumbs__current {
  color: color-mix(in srgb, var(--foreground) 85%, transparent);
}

.yishu-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
  background: color-mix(in srgb, var(--background) 78%, transparent);
  color: color-mix(in srgb, var(--muted-foreground) 90%, transparent);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.08em;
}
.yishu-hero__badge::before {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--ring) 85%, transparent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--ring) 14%, transparent);
}
.yishu-hero__title {
  margin: 1.25rem 0 0;
  font-size: clamp(2.25rem, 3.8vw, 3.75rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, var(--foreground), color-mix(in srgb, var(--foreground) 60%, transparent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.yishu-hero__subtitle {
  margin: 0.9rem auto 0;
  max-width: 44rem;
  color: color-mix(in srgb, var(--muted-foreground) 90%, transparent);
  font-size: 1.05rem;
  line-height: 1.75;
}
.yishu-hero__cta {
  margin-top: 2rem;
  display: flex;
  gap: 0.9rem;
  justify-content: center;
  flex-wrap: wrap;
}

.yishu-ticker {
  border-top: 1px solid var(--yishu-glass-border);
  border-bottom: 1px solid var(--yishu-glass-border);
  background: var(--yishu-glass);
  overflow: hidden;
}
.yishu-ticker__track {
  display: flex;
  gap: 2.75rem;
  align-items: center;
  width: max-content;
  padding: 1.05rem 0;
  animation: yishu-marquee 22s linear infinite;
}
.yishu-ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.18em;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
  text-transform: uppercase;
  white-space: nowrap;
}
.yishu-ticker__dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--ring) 78%, transparent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--ring) 14%, transparent);
}

.yishu-reveal {
  --yishu-reveal-x: 0px;
  --yishu-reveal-y: 16px;
  --yishu-delay: 0ms;
  opacity: 0;
  transform: translate3d(var(--yishu-reveal-x), var(--yishu-reveal-y), 0) scale(0.985);
  transition:
    opacity 720ms var(--yishu-ease-out) var(--yishu-delay),
    transform 720ms var(--yishu-ease-out) var(--yishu-delay);
  will-change: opacity, transform;
}
.yishu-reveal[data-yishu-reveal="left"] {
  --yishu-reveal-x: -18px;
  --yishu-reveal-y: 0px;
}
.yishu-reveal[data-yishu-reveal="right"] {
  --yishu-reveal-x: 18px;
  --yishu-reveal-y: 0px;
}
.yishu-reveal[data-yishu-reveal="up"] {
  --yishu-reveal-x: 0px;
  --yishu-reveal-y: 18px;
}
.yishu-reveal.is-in {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

@media (prefers-reduced-motion: reduce) {
  .yishu-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .yishu-hero::before {
    animation: none;
  }
  .yishu-ticker__track {
    animation: none;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }
}

@keyframes yishu-marquee {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-50%, 0, 0);
  }
}

@keyframes yishu-scroll-bounce {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, 4px, 0);
  }
}

@keyframes yishu-grid-drift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-14px, 10px, 0);
  }
}

.yishu-section {
  padding: clamp(3.75rem, 5vw, 5rem) 0;
}
.yishu-section--muted {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--muted) 70%, transparent);
}
.yishu-section__heading {
  text-align: center;
  margin-bottom: 2.25rem;
}
.yishu-section__kicker {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: color-mix(in srgb, var(--muted-foreground) 90%, transparent);
}
.yishu-section__title {
  margin: 0.8rem 0 0;
  font-size: clamp(1.75rem, 2.4vw, 2.25rem);
  letter-spacing: -0.02em;
}
.yishu-section__desc {
  margin: 0.85rem auto 0;
  max-width: 44rem;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
  line-height: 1.75;
}
.yishu-section__heading--left {
  text-align: left;
}
.yishu-section__heading--left .yishu-section__desc {
  margin-left: 0;
  margin-right: 0;
}

.yishu-cta {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: center;
}

.yishu-stack {
  display: grid;
  gap: 1rem;
}

.yishu-pill-group {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}
.yishu-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--yishu-glass-border);
  background: var(--yishu-glass);
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
  font-size: 0.9rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}
.yishu-pill::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--ring) 78%, transparent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--ring) 14%, transparent);
}

.yishu-split {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.25rem);
  align-items: center;
}
@media (min-width: 960px) {
  .yishu-split {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.yishu-panel {
  padding: 1.35rem;
}
.yishu-panel__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.1rem;
}
.yishu-panel__dots {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.yishu-panel__dot {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
  background: color-mix(in srgb, var(--muted) 70%, transparent);
}
.yishu-panel__dot--red {
  background: color-mix(in srgb, var(--accent-red) 70%, var(--muted));
}
.yishu-panel__dot--yellow {
  background: color-mix(in srgb, #fbbf24 70%, var(--muted));
}
.yishu-panel__dot--green {
  background: color-mix(in srgb, #22c55e 65%, var(--muted));
}
.yishu-panel__label {
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.18em;
  color: color-mix(in srgb, var(--muted-foreground) 88%, transparent);
  text-transform: uppercase;
}
.yishu-panel__grid {
  display: grid;
  gap: 0.7rem;
}
.yishu-panel__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid color-mix(in srgb, var(--border) 82%, transparent);
  background: color-mix(in srgb, var(--background) 72%, transparent);
}
.yishu-panel__key {
  color: color-mix(in srgb, var(--muted-foreground) 88%, transparent);
  font-size: 0.9rem;
  font-weight: 650;
}
.yishu-panel__value {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.88rem;
  color: var(--foreground);
}

.yishu-scroll-hint {
  margin-top: 2.75rem;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: color-mix(in srgb, var(--muted-foreground) 88%, transparent);
  user-select: none;
}
.yishu-scroll-hint__label {
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.yishu-scroll-hint__icon {
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 999px;
  border: 1px solid var(--yishu-glass-border);
  background: var(--yishu-glass);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-sm);
}
.yishu-scroll-hint__icon svg {
  width: 0.95rem;
  height: 0.95rem;
  stroke: currentColor;
  stroke-width: 2.2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
@media (prefers-reduced-motion: no-preference) {
  .yishu-scroll-hint__icon svg {
    animation: yishu-scroll-bounce 1.6s var(--yishu-ease-spring) infinite;
  }
}

.yishu-qr {
  margin-top: 1rem;
  width: 160px;
  height: 160px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--border) 90%, transparent);
  background: var(--background);
}
.yishu-qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.yishu-qr--sm {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-md);
}

.yishu-form {
  display: grid;
  gap: 0.85rem;
  margin: 0;
}
.yishu-form__honey {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.yishu-form__field {
  display: grid;
  gap: 0.4rem;
}
.yishu-form__label {
  font-size: 0.9rem;
  font-weight: 650;
  color: var(--foreground);
}
.yishu-form__control {
  width: 100%;
  border: 1px solid color-mix(in srgb, var(--input) 92%, transparent);
  border-radius: var(--radius-sm);
  padding: 0.85rem 0.95rem;
  background: color-mix(in srgb, var(--background) 86%, var(--muted));
  color: var(--foreground);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--border) 35%, transparent);
  transition:
    border-color 180ms var(--yishu-ease-out),
    box-shadow 180ms var(--yishu-ease-out),
    background 180ms var(--yishu-ease-out);
}
.yishu-form__control:focus {
  border-color: color-mix(in srgb, var(--ring) 40%, var(--border));
}
.yishu-form__textarea {
  resize: vertical;
  min-height: 120px;
}
.yishu-form__hint {
  margin: 0;
  font-size: 0.9rem;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
}
.yishu-form__hint a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--muted-foreground) 45%, transparent);
}
@media (hover: hover) and (pointer: fine) {
  .yishu-form__hint a:hover {
    color: var(--foreground);
    border-bottom-color: color-mix(in srgb, var(--foreground) 45%, transparent);
  }
}
.yishu-form__notice {
  margin: 0 0 0.85rem;
  font-weight: 650;
}
.yishu-form__notice--success {
  color: #10b981;
}
.yishu-form__notice--error {
  color: var(--destructive);
}

.yishu-grid {
  display: grid;
  gap: 1.1rem;
}
@media (min-width: 720px) {
  .yishu-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1024px) {
  .yishu-grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .yishu-grid--4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.yishu-card {
  --card-accent: var(--ring);
  --yishu-spotlight-x: 50%;
  --yishu-spotlight-y: 0%;
  --yishu-tilt-x: 0deg;
  --yishu-tilt-y: 0deg;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--yishu-glass-border);
  background: color-mix(in srgb, var(--card) 90%, transparent);
  backdrop-filter: var(--yishu-card-backdrop);
  box-shadow: var(--shadow-sm);
  padding: 1.45rem;
  transition: transform 240ms var(--yishu-ease-out), box-shadow 240ms var(--yishu-ease-out), border-color 240ms var(--yishu-ease-out);
}
.yishu-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background:
    radial-gradient(
      640px circle at var(--yishu-spotlight-x) var(--yishu-spotlight-y),
      color-mix(in srgb, var(--card-accent) 22%, transparent) 0%,
      transparent 62%
    ),
    radial-gradient(
      520px circle at calc(var(--yishu-spotlight-x) + 18%) calc(var(--yishu-spotlight-y) + 10%),
      color-mix(in srgb, var(--card-accent) 10%, transparent) 0%,
      transparent 70%
    );
  opacity: 0;
  transition: opacity 260ms var(--yishu-ease-out);
  pointer-events: none;
}
@media (hover: hover) and (pointer: fine) {
  .yishu-card:hover::before {
    opacity: 1;
  }

  .yishu-card:hover {
    transform: perspective(900px) translateY(-2px) rotateX(var(--yishu-tilt-x)) rotateY(var(--yishu-tilt-y));
    box-shadow: var(--shadow-md), var(--yishu-glow-soft);
    border-color: color-mix(in srgb, var(--card-accent) 28%, var(--border));
  }
}
.yishu-card:focus-within::before {
  opacity: 1;
}
.yishu-card:focus-within {
  box-shadow: var(--shadow-md), var(--yishu-glow-soft);
  border-color: color-mix(in srgb, var(--card-accent) 28%, var(--border));
}
.yishu-card--blue {
  --card-accent: var(--accent-blue);
}
.yishu-card--cyan {
  --card-accent: var(--accent-cyan);
}
.yishu-card--purple {
  --card-accent: var(--accent-purple);
}
.yishu-card--red {
  --card-accent: var(--accent-red);
}

.yishu-card__icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-md);
  border: 1px solid color-mix(in srgb, var(--card-accent) 22%, var(--border));
  background: color-mix(in srgb, var(--card-accent) 10%, var(--background));
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
}
.yishu-card__icon svg {
  width: 1.25rem;
  height: 1.25rem;
  stroke: var(--card-accent);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

a.yishu-card {
  text-decoration: none;
  color: inherit;
}

.yishu-post-card {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}
.yishu-post-card .wp-block-post-featured-image {
  margin: 0;
}
.yishu-post-card .wp-block-post-featured-image img {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
}
.yishu-post-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
}
.yishu-post-card__meta a {
  text-decoration: none;
  color: inherit;
}
@media (hover: hover) and (pointer: fine) {
  .yishu-post-card__meta a:hover {
    color: var(--foreground);
  }
}
.yishu-post-card .wp-block-post-excerpt__more-link {
  margin-top: 0.75rem;
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
  font-weight: 650;
  text-decoration: none;
  color: var(--foreground);
}
@media (hover: hover) and (pointer: fine) {
  .yishu-post-card .wp-block-post-excerpt__more-link:hover {
    text-decoration: underline;
  }
}

.yishu-article-header {
  display: grid;
  gap: 0.9rem;
}
.yishu-article-title {
  margin: 0;
  font-size: clamp(2rem, 3.2vw, 2.75rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  background: linear-gradient(180deg, var(--foreground), color-mix(in srgb, var(--foreground) 58%, transparent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.yishu-page-title {
  margin: 0;
  font-size: clamp(2.15rem, 3.8vw, 3.1rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  background: linear-gradient(180deg, var(--foreground), color-mix(in srgb, var(--foreground) 58%, transparent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.yishu-article-header .wp-block-post-featured-image img {
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in srgb, var(--border) 88%, transparent);
  box-shadow: var(--shadow-sm);
}

.wp-block-post-template {
  padding: 0;
  margin: 0;
  list-style: none;
}
.wp-block-post-template.is-layout-grid {
  display: grid;
  gap: 1.15rem;
}
@media (max-width: 720px) {
  .wp-block-post-template.is-layout-grid {
    grid-template-columns: 1fr !important;
  }
}
@media (min-width: 721px) and (max-width: 1023px) {
  .wp-block-post-template.is-layout-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }
}

.wp-block-query-pagination {
  margin-top: 2rem;
  gap: 0.65rem;
}
.wp-block-query-pagination a,
.wp-block-query-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in srgb, var(--border) 88%, transparent);
  text-decoration: none;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
  background: color-mix(in srgb, var(--background) 78%, transparent);
}
@media (hover: hover) and (pointer: fine) {
  .wp-block-query-pagination a:hover {
    color: var(--foreground);
    background: color-mix(in srgb, var(--muted) 62%, transparent);
    box-shadow: var(--shadow-sm);
  }
}
.wp-block-query-pagination .current {
  color: var(--foreground);
  border-color: color-mix(in srgb, var(--ring) 30%, var(--border));
}
.yishu-card__title {
  margin: 0.1rem 0 0.5rem;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}
.yishu-card__desc {
  margin: 0;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
  line-height: 1.65;
}
.yishu-card__desc :where(p) {
  margin: 0;
}
ul.yishu-card__desc {
  padding-left: 1.1rem;
  margin: 0.25rem 0 0;
}
ul.yishu-card__desc li {
  margin: 0.25rem 0;
}

.yishu-pricing-card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.yishu-plan-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  align-self: flex-start;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--card-accent) 22%, var(--border));
  background: color-mix(in srgb, var(--card-accent) 10%, var(--background));
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.06em;
}
.yishu-plan-badge::before {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--card-accent) 70%, transparent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--card-accent) 14%, transparent);
}
.yishu-price {
  margin: 0;
  font-size: 2.05rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 800;
  color: color-mix(in srgb, var(--foreground) 92%, transparent);
}
.yishu-price__unit {
  font-size: 0.95rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
}
.yishu-pricing-card .yishu-cta {
  margin-top: auto;
}
.yishu-pricing__fineprint {
  margin: 1.25rem 0 0;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
  font-size: 0.95rem;
  line-height: 1.7;
}

.yishu-article-layout {
  display: block;
}
@media (min-width: 1024px) {
  .yishu-article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 2rem;
    align-items: start;
  }
  .yishu-article-layout .yishu-prose {
    grid-column: 1;
  }
  .yishu-article-layout .yishu-toc {
    grid-column: 2;
    margin: 0;
    position: sticky;
    top: calc(var(--yishu-anchor-offset) + 0.75rem);
  }
  .yishu-article-layout .yishu-toc__nav {
    max-height: calc(100dvh - var(--yishu-anchor-offset) - 6rem);
  }
}

.yishu-toc {
  margin: 0 0 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--yishu-glass-border);
  background: var(--yishu-glass);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.yishu-toc__summary {
  padding: 0.95rem 1.05rem;
  cursor: pointer;
  user-select: none;
}
.yishu-toc__summary-inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.yishu-toc__summary-inner::after {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  opacity: 0.6;
  flex: 0 0 auto;
  transition: transform 180ms var(--yishu-ease-out), opacity 180ms var(--yishu-ease-out);
}
.yishu-toc__summary::-webkit-details-marker {
  display: none;
}
.yishu-toc__label {
  font-weight: 780;
  letter-spacing: -0.01em;
}
.yishu-toc__meta {
  margin-left: auto;
  font-size: 0.9rem;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
}
.yishu-toc[open] .yishu-toc__summary {
  border-bottom: 1px solid var(--yishu-glass-border);
}
.yishu-toc[open] .yishu-toc__summary-inner::after {
  transform: rotate(-135deg);
  opacity: 0.85;
}
.yishu-toc__nav {
  padding: 0.65rem 0.75rem 0.9rem;
  display: grid;
  gap: 0.25rem;
  max-height: min(60vh, 420px);
  overflow: auto;
  overscroll-behavior: contain;
}
.yishu-toc__nav:empty {
  padding: 0;
}
.yishu-toc__link {
  display: block;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: color-mix(in srgb, var(--foreground) 78%, transparent);
  transition: background 180ms var(--yishu-ease-out), color 180ms var(--yishu-ease-out);
}
.yishu-toc__link[data-level="3"] {
  padding-left: 1.25rem;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
}
.yishu-toc__link:focus-visible {
  background: color-mix(in srgb, var(--muted) 62%, transparent);
  color: var(--foreground);
}
@media (hover: hover) and (pointer: fine) {
  .yishu-toc__link:hover {
    background: color-mix(in srgb, var(--muted) 62%, transparent);
    color: var(--foreground);
  }
}
.yishu-toc__link.is-active {
  background: color-mix(in srgb, var(--ring) 12%, var(--background));
  border: 1px solid color-mix(in srgb, var(--ring) 22%, var(--border));
  color: var(--foreground);
}

.yishu-prose {
  max-width: 72ch;
  margin-inline: auto;
}
.yishu-prose :where(p, ul, ol, pre, blockquote) {
  line-height: 1.85;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
}
.yishu-prose :where(h2, h3) {
  letter-spacing: -0.015em;
  margin-top: 2.25rem;
}
.yishu-prose :where(a) {
  color: color-mix(in srgb, var(--ring) 90%, var(--foreground));
}
.yishu-prose :where(code) {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.95em;
}
.yishu-prose :where(pre) {
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem 1.1rem;
  background: color-mix(in srgb, var(--muted) 70%, transparent);
  overflow: auto;
}
.yishu-prose :where(blockquote) {
  border-left: 3px solid color-mix(in srgb, var(--ring) 55%, var(--border));
  padding-left: 1rem;
  margin-left: 0;
}

.yishu-footer {
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
  background: var(--background);
}
.yishu-footer__grid {
  display: grid;
  gap: 2rem;
}
@media (min-width: 860px) {
  .yishu-footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}
.yishu-footer__title {
  font-weight: 800;
  letter-spacing: -0.02em;
}
.yishu-footer__muted {
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
  line-height: 1.7;
  font-size: 0.95rem;
}
.yishu-footer__links a {
  text-decoration: none;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
}
.yishu-footer__links a:focus-visible {
  color: var(--foreground);
}
@media (hover: hover) and (pointer: fine) {
  .yishu-footer__links a:hover {
    color: var(--foreground);
  }
}
.yishu-footer__bottom {
  margin-top: 2.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  color: color-mix(in srgb, var(--muted-foreground) 92%, transparent);
  font-size: 0.9rem;
}

@media (prefers-reduced-motion: reduce) {
  .yishu-nav a::after,
  .yishu-nav .wp-block-navigation__responsive-container-open,
  .yishu-nav .wp-block-navigation__responsive-container-close,
  .yishu-nav .wp-block-navigation__submenu-icon,
  .yishu-nav .wp-block-navigation__submenu-icon svg,
  .yishu-nav .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-item.has-child:hover > .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-item.has-child:focus-within > .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-submenu:hover > .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-submenu:focus-within > .wp-block-navigation__submenu-container,
  .yishu-theme-toggle,
  .wp-element-button,
  .wp-block-button__link,
  .yishu-card,
  .yishu-toc__summary-inner::after {
    transition: none;
  }

  .yishu-nav .wp-block-navigation__responsive-container-open,
  .yishu-nav .wp-block-navigation__responsive-container-close,
  .yishu-nav .wp-block-navigation__submenu-icon svg,
  .yishu-nav .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-item.has-child:hover > .wp-block-navigation__submenu-icon svg,
  .yishu-nav .wp-block-navigation-item.has-child:focus-within > .wp-block-navigation__submenu-icon svg,
  .yishu-nav .wp-block-navigation-submenu:hover > .wp-block-navigation__submenu-icon svg,
  .yishu-nav .wp-block-navigation-submenu:focus-within > .wp-block-navigation__submenu-icon svg,
  .yishu-nav .wp-block-navigation-item.has-child:hover > .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-item.has-child:focus-within > .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-submenu:hover > .wp-block-navigation__submenu-container,
  .yishu-nav .wp-block-navigation-submenu:focus-within > .wp-block-navigation__submenu-container,
  .yishu-theme-toggle,
  .wp-element-button,
  .wp-block-button__link,
  .yishu-card {
    transform: none;
  }

  .yishu-nav .wp-block-navigation__responsive-container-open:hover,
  .yishu-nav .wp-block-navigation__responsive-container-close:hover,
  .yishu-theme-toggle:hover,
  .wp-element-button:hover,
  .wp-block-button__link:hover,
  .yishu-card:hover {
    transform: none;
  }
}