:root {
  --jm-pink: #ff6b9d;
  --jm-pink-deep: #e84a7f;
  --jm-gold: #ffd166;
  --jm-peach: #ffb4c6;
  --jm-cream: #fff7f2;
  --jm-ink: #2b1b26;
  --jm-ink-soft: #5a4450;
  --jm-line: rgba(255, 107, 157, 0.18);
  --jm-bg: #fffafc;
  --jm-bg-alt: #fff3f7;
  --jm-card: #ffffff;
  --jm-glass: rgba(255, 255, 255, 0.62);
  --jm-glass-border: rgba(255, 255, 255, 0.7);
  --jm-shadow: 0 10px 30px rgba(232, 74, 127, 0.12);
  --jm-shadow-lg: 0 22px 60px rgba(232, 74, 127, 0.18);
  --jm-radius: 20px;
  --jm-radius-sm: 12px;
  --jm-radius-lg: 28px;
  --jm-max: 1180px;
  --jm-grad: linear-gradient(135deg, #ff6b9d 0%, #ff8fab 45%, #ffd166 100%);
  --jm-grad-soft: linear-gradient(135deg, rgba(255, 107, 157, 0.12), rgba(255, 209, 102, 0.16));
  --jm-font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --jm-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --jm-ink: #f6e9ef;
    --jm-ink-soft: #cbb2c0;
    --jm-line: rgba(255, 143, 175, 0.22);
    --jm-bg: #17111a;
    --jm-bg-alt: #1e1622;
    --jm-card: #241a29;
    --jm-glass: rgba(46, 32, 52, 0.55);
    --jm-glass-border: rgba(255, 143, 175, 0.22);
    --jm-cream: #1e1622;
    --jm-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
    --jm-shadow-lg: 0 22px 60px rgba(0, 0, 0, 0.55);
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--jm-font);
  font-size: 16px;
  line-height: 1.85;
  color: var(--jm-ink);
  background-color: var(--jm-bg);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(255, 107, 157, 0.16), transparent 42%),
    radial-gradient(circle at 88% 4%, rgba(255, 209, 102, 0.18), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(255, 143, 175, 0.12), transparent 55%);
  background-attachment: fixed;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--jm-pink-deep);
  text-decoration: none;
  transition: color 0.25s var(--jm-ease), opacity 0.25s var(--jm-ease);
}

a:hover,
a:focus-visible {
  color: var(--jm-pink);
  text-decoration: underline;
  text-underline-offset: 4px;
}

h1,
h2,
h3,
h4 {
  line-height: 1.35;
  color: var(--jm-ink);
  letter-spacing: 0.01em;
  margin: 0 0 0.6em;
  font-weight: 800;
}

h1 {
  font-size: clamp(1.75rem, 4.4vw, 2.85rem);
}

h2 {
  font-size: clamp(1.4rem, 3.2vw, 2.1rem);
  position: relative;
  padding-left: 0.62em;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 6px;
  border-radius: 999px;
  background: var(--jm-grad);
}

h3 {
  font-size: clamp(1.12rem, 2.2vw, 1.4rem);
  margin-top: 1.7em;
}

p {
  margin: 0 0 1.05em;
  color: var(--jm-ink-soft);
}

strong {
  color: var(--jm-ink);
  font-weight: 700;
}

ul,
ol {
  margin: 0 0 1.2em;
  padding-left: 1.35em;
  color: var(--jm-ink-soft);
}

li {
  margin-bottom: 0.5em;
}

li::marker {
  color: var(--jm-pink);
  font-weight: 700;
}

time {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--jm-pink-deep);
  font-weight: 600;
  letter-spacing: 0.02em;
}

blockquote {
  margin: 1.2em 0;
  padding: 1.1em 1.4em;
  border-left: 4px solid var(--jm-pink);
  border-radius: 0 var(--jm-radius-sm) var(--jm-radius-sm) 0;
  background: var(--jm-grad-soft);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

blockquote p {
  margin: 0;
  color: var(--jm-ink);
  font-style: italic;
}

address {
  font-style: normal;
}

::selection {
  background: rgba(255, 107, 157, 0.28);
  color: var(--jm-ink);
}

:focus-visible {
  outline: 3px solid rgba(255, 107, 157, 0.55);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ===== Header ===== */
#siteHeader {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--jm-glass);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--jm-glass-border);
  box-shadow: 0 6px 24px rgba(232, 74, 127, 0.08);
  transition: box-shadow 0.3s var(--jm-ease), background 0.3s var(--jm-ease);
}

#siteHeader nav {
  max-width: var(--jm-max);
  margin: 0 auto;
  padding: 0.7rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

#siteHeader nav > a[aria-label="jm首页"] {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  background: var(--jm-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  padding: 0.15em 0.35em;
  border-radius: var(--jm-radius-sm);
  transition: transform 0.3s var(--jm-ease);
}

#siteHeader nav > a[aria-label="jm首页"]:hover {
  transform: scale(1.08) rotate(-2deg);
  text-decoration: none;
}

#siteHeader ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.35rem;
  margin-left: auto;
}

#siteHeader ul li {
  margin: 0;
}

#siteHeader ul a {
  display: inline-block;
  padding: 0.42em 0.85em;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--jm-ink-soft);
  border-radius: 999px;
  transition: background 0.25s var(--jm-ease), color 0.25s var(--jm-ease), transform 0.25s var(--jm-ease);
}

#siteHeader ul a:hover,
#siteHeader ul a:focus-visible {
  background: var(--jm-grad-soft);
  color: var(--jm-pink-deep);
  text-decoration: none;
  transform: translateY(-2px);
}

/* ===== Main layout ===== */
main {
  max-width: var(--jm-max);
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

section {
  margin: 0 0 2.6rem;
  padding: 2.2rem 1.9rem;
  background: var(--jm-card);
  border: 1px solid var(--jm-line);
  border-radius: var(--jm-radius-lg);
  box-shadow: var(--jm-shadow);
  position: relative;
  overflow: hidden;
  animation: jm-rise 0.8s var(--jm-ease) both;
}

section::after {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 4px;
  background: var(--jm-grad);
  opacity: 0.85;
}

section:nth-of-type(even) {
  background: var(--jm-bg-alt);
}

@keyframes jm-rise {
  from {
    opacity: 0;
    transform: translateY(26px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Hero ===== */
#hero {
  margin-top: 1.6rem;
  padding: 2.6rem 2rem 2.2rem;
  background: var(--jm-grad);
  border: none;
  color: #fff;
  box-shadow: var(--jm-shadow-lg);
  text-align: center;
}

#hero::after {
  display: none;
}

#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 22%, rgba(255, 255, 255, 0.4), transparent 45%),
    radial-gradient(circle at 82% 78%, rgba(255, 255, 255, 0.28), transparent 48%);
  pointer-events: none;
}

#hero > * {
  position: relative;
  z-index: 1;
}

#hero h1 {
  color: #fff;
  text-shadow: 0 4px 18px rgba(160, 20, 70, 0.28);
  margin-bottom: 0.8rem;
}

#hero p {
  color: rgba(255, 255, 255, 0.95);
  max-width: 62ch;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 0 2px 10px rgba(160, 20, 70, 0.2);
}

#hero figure {
  margin: 1.6rem auto 1.4rem;
  max-width: 720px;
  border-radius: var(--jm-radius);
  overflow: hidden;
  box-shadow: 0 18px 46px rgba(120, 10, 55, 0.28);
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: transform 0.4s var(--jm-ease), box-shadow 0.4s var(--jm-ease);
}

#hero figure:hover {
  transform: translateY(-6px) scale(1.012);
  box-shadow: 0 26px 60px rgba(120, 10, 55, 0.36);
}

#hero figcaption {
  padding: 0.7em 1em;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.92);
  background: rgba(120, 10, 55, 0.22);
}

#hero p:last-child {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 0;
}

#hero p:last-child a {
  display: inline-block;
  padding: 0.62em 1.5em;
  font-weight: 700;
  color: var(--jm-pink-deep);
  background: #fff;
  border-radius: 999px;
  box-shadow: 0 10px 26px rgba(120, 10, 55, 0.22);
  transition: transform 0.3s var(--jm-ease), box-shadow 0.3s var(--jm-ease), background 0.3s var(--jm-ease);
}

#hero p:last-child a:hover,
#hero p:last-child a:focus-visible {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 16px 34px rgba(120, 10, 55, 0.3);
  background: #fff7f2;
  text-decoration: none;
}

/* ===== Cards / articles ===== */
#news article,
#articles article {
  padding: 1.3rem 1.4rem;
  margin-bottom: 1.1rem;
  background: var(--jm-glass);
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  border: 1px solid var(--jm-glass-border);
  border-radius: var(--jm-radius);
  box-shadow: 0 6px 20px rgba(232, 74, 127, 0.08);
  transition: transform 0.35s var(--jm-ease), box-shadow 0.35s var(--jm-ease), border-color 0.35s var(--jm-ease);
}

#news article:hover,
#articles article:hover {
  transform: translateY(-6px);
  box-shadow: var(--jm-shadow-lg);
  border-color: rgba(255, 107, 157, 0.4);
}

#news article h3,
#articles article h3 {
  margin-top: 0;
  margin-bottom: 0.35em;
}

#articles article p:last-child {
  margin-bottom: 0;
}

#articles article p:last-child a {
  display: inline-block;
  font-weight: 700;
  padding: 0.3em 0.9em;
  border-radius: 999px;
  background: var(--jm-grad-soft);
  transition: background 0.3s var(--jm-ease), transform 0.3s var(--jm-ease);
}

#articles article p:last-child a:hover {
  background: rgba(255, 107, 157, 0.22);
  transform: translateX(4px);
  text-decoration: none;
}

/* ===== FAQ ===== */
#faq details {
  margin-bottom: 0.85rem;
  border: 1px solid var(--jm-line);
  border-radius: var(--jm-radius);
  background: var(--jm-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  transition: box-shadow 0.35s var(--jm-ease), border-color 0.35s var(--jm-ease), transform 0.35s var(--jm-ease);
}

#faq details:hover {
  border-color: rgba(255, 107, 157, 0.45);
  box-shadow: 0 12px 30px rgba(232, 74, 127, 0.14);
  transform: translateY(-3px);
}

#faq details[open] {
  box-shadow: 0 16px 40px rgba(232, 74, 127, 0.16);
  border-color: rgba(255, 107, 157, 0.5);
}

#faq summary {
  cursor: pointer;
  list-style: none;
  padding: 1em 3em 1em 1.25em;
  font-weight: 700;
  color: var(--jm-ink);
  position: relative;
  transition: color 0.25s var(--jm-ease), background 0.25s var(--jm-ease);
}

#faq summary::-webkit-details-marker {
  display: none;
}

#faq summary::after {
  content: "+";
  position: absolute;
  right: 1.1em;
  top: 50%;
  transform: translateY(-50%);
  width: 1.6em;
  height: 1.6em;
  line-height: 1.5em;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  background: var(--jm-grad);
  border-radius: 50%;
  transition: transform 0.35s var(--jm-ease), background 0.35s var(--jm-ease);
}

#faq details[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
}

#faq summary:hover {
  color: var(--jm-pink-deep);
  background: var(--jm-grad-soft);
}

#faq details p {
  margin: 0;
  padding: 0 1.35em 1.3em;
  animation: jm-fade 0.45s var(--jm-ease) both;
}

@keyframes jm-fade {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== HowTo steps ===== */
#howto ol {
  counter-reset: jm-step;
  list-style: none;
  padding-left: 0;
}

#howto ol > li {
  counter-increment: jm-step;
  position: relative;
  padding: 0.85em 1em 0.85em 3.2em;
  margin-bottom: 0.7rem;
  border-radius: var(--jm-radius-sm);
  background: var(--jm-grad-soft);
  border: 1px solid var(--jm-line);
  transition: transform 0.3s var(--jm-ease), box-shadow 0.3s var(--jm-ease);
}

#howto ol > li::before {
  content: counter(jm-step);
  position: absolute;
  left: 0.85em;
  top: 50%;
  transform: translateY(-50%);
  width: 1.9em;
  height: 1.9em;
  line-height: 1.9em;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 800;
  color: #fff;
  background: var(--jm-grad);
  border-radius: 50%;
  box-shadow: 0 6px 14px rgba(232, 74, 127, 0.3);
}

#howto ol > li:hover {
  transform: translateX(6px);
  box-shadow: 0 10px 26px rgba(232, 74, 127, 0.14);
}

#howto ul > li {
  padding-left: 0.2em;
}

/* ===== Contact ===== */
#contact address {
  padding: 1.3rem 1.5rem;
  border-radius: var(--jm-radius);
  background: var(--jm-grad-soft);
  border: 1px solid var(--jm-line);
}

#contact address p {
  margin-bottom: 0.55em;
}

#contact address p:last-child {
  margin-bottom: 0;
}

/* ===== Sitemap & links ===== */
#sitemap ul,
#links ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

#sitemap ul li,
#links ul li {
  margin: 0;
}

#sitemap ul a,
#links ul a {
  display: inline-block;
  padding: 0.5em 1.1em;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--jm-ink-soft);
  background: var(--jm-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--jm-glass-border);
  border-radius: 999px;
  transition: transform 0.3s var(--jm-ease), background 0.3s var(--jm-ease), color 0.3s var(--jm-ease), box-shadow 0.3s var(--jm-ease);
}

#sitemap ul a:hover,
#links ul a:hover {
  transform: translateY(-3px);
  background: var(--jm-grad);
  color: #fff;
  box-shadow: 0 12px 26px rgba(232, 74, 127, 0.26);
  text-decoration: none;
}

/* ===== Legal ===== */
#legal h3 {
  padding-bottom: 0.35em;
  border-bottom: 2px dashed var(--jm-line);
}

/* ===== Footer ===== */
footer {
  margin-top: 2rem;
  padding: 2.2rem 1.25rem 2.6rem;
  text-align: center;
  color: var(--jm-ink-soft);
  background: var(--jm-grad-soft);
  border-top: 1px solid var(--jm-line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

footer p {
  margin: 0.3em 0;
  font-size: 0.9rem;
}

footer a {
  font-weight: 600;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  #siteHeader nav {
    gap: 0.6rem;
  }

  #siteHeader ul {
    width: 100%;
    margin-left: 0;
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 0.3rem;
    scrollbar-width: thin;
  }

  #siteHeader ul a {
    white-space: nowrap;
    font-size: 0.86rem;
  }

  section {
    padding: 1.7rem 1.3rem;
    border-radius: var(--jm-radius);
  }

  #hero {
    padding: 2rem 1.2rem 1.6rem;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 15px;
    line-height: 1.8;
  }

  main {
    padding: 0 0.85rem 2.4rem;
  }

  section {
    margin-bottom: 1.6rem;
    padding: 1.4rem 1.05rem;
    border-radius: var(--jm-radius-sm);
  }

  #hero {
    margin-top: 1rem;
    padding: 1.7rem 1rem 1.4rem;
  }

  #hero p:last-child {
    flex-direction: column;
  }

  #hero p:last-child a {
    width: 100%;
    text-align: center;
  }

  h2 {
    padding-left: 0.55em;
  }

  h2::before {
    width: 5px;
  }

  #news article,
  #articles article {
    padding: 1.05rem 1.05rem;
  }

  #faq summary {
    padding: 0.9em 2.8em 0.9em 1em;
    font-size: 0.98rem;
  }

  #howto ol > li {
    padding: 0.75em 0.9em 0.75em 2.9em;
  }

  #contact address {
    padding: 1.05rem 1.05rem;
  }
}

@media (min-width: 1280px) {
  #hero h1 {
    letter-spacing: 0.015em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  #siteHeader,
  footer,
  #hero p:last-child {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  section {
    box-shadow: none;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }
}