@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400&family=JetBrains+Mono:wght@400&family=Playfair+Display:ital@1&display=swap');

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

:root {
  --ink: #171f26;
  --ink-2: #414d57;
  --blue: #c8e0f4;
  --pink: #f5e0e8;
  --r: 18px;
  --out: -6px -6px 16px rgba(255, 255, 255, 0.92), 7px 7px 20px rgba(23, 31, 38, 0.13);
  --out-sm: -3px -3px 9px rgba(255, 255, 255, 0.9), 4px 4px 11px rgba(23, 31, 38, 0.11);
  --in: inset -5px -5px 12px rgba(255, 255, 255, 0.95), inset 5px 5px 12px rgba(23, 31, 38, 0.11);
}

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

body {
  margin: 0;
  font-size: 17px;
  line-height: 1.78;
  color: var(--ink);
  font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  background:
    radial-gradient(1100px 560px at 10% -4%, #f1f9fe 0%, rgba(241, 249, 254, 0) 62%),
    radial-gradient(900px 520px at 92% 4%, #fceff5 0%, rgba(252, 239, 245, 0) 60%),
    linear-gradient(180deg, #e9f1f8 0%, #e7eef6 46%, #eee8f0 100%);
  background-attachment: fixed;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

:focus-visible {
  outline: 2px solid #7c94a6;
  outline-offset: 2px;
}

.strip {
  background: var(--ink);
  color: #e6f0f8;
  text-align: center;
  font-size: 14px;
  letter-spacing: 0.14em;
  padding: 7px 14px;
}

.bar {
  display: flex;
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
  padding: 13px 16px 11px;
}

.brand {
  width: 48px;
  height: 48px;
  min-height: 44px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  text-decoration: none;
  background: linear-gradient(145deg, #ffffff, #d9e6f1);
  box-shadow: var(--out);
  overflow: hidden;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.brand:active { transform: scale(0.95); box-shadow: var(--in); }

.brand b {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.brand .logoimg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 15px;
}

.dock {
  position: sticky;
  top: 0;
  z-index: 40;
  padding: 9px 12px 11px;
  background: linear-gradient(180deg, rgba(234, 242, 249, 0.97) 0%, rgba(234, 242, 249, 0.82) 70%, rgba(234, 242, 249, 0) 100%);
  backdrop-filter: blur(9px);
}

.dock nav {
  max-width: 1180px;
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.dock nav::-webkit-scrollbar { height: 0; }

.dock ul {
  display: flex;
  gap: 9px;
  list-style: none;
  margin: 0;
  padding: 0 0 3px;
  min-width: max-content;
}

.dock a {
  display: block;
  padding: 10px 16px;
  min-height: 44px;
  line-height: 24px;
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
  border-radius: 999px;
  background: linear-gradient(145deg, #f6fbff, #dbe8f3);
  box-shadow: var(--out-sm);
  transition: box-shadow 0.16s ease, transform 0.16s ease;
}

.dock a:hover { box-shadow: var(--out); }
.dock a:active { box-shadow: var(--in); transform: scale(0.97); }

.hero {
  position: relative;
  height: 45vh;
  min-height: 292px;
  max-height: 420px;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  overflow: hidden;
  border-radius: 0 0 36px 36px;
  margin: 0 0 26px;
  background: linear-gradient(145deg, #c8e0f4, #f5e0e8);
}

.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(102deg, rgba(200, 224, 244, 0.12) 0%, rgba(245, 224, 232, 0.58) 56%, rgba(252, 246, 249, 0.94) 100%);
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding: 20px 22px 26px;
  text-align: right;
  max-width: 22ch;
}

.hero h1 {
  margin: 0;
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--ink);
  font-family: "Playfair Display", "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

main { padding: 0 16px 44px; }

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 264px;
  gap: 26px;
  align-items: start;
}

.content > div {
  background: linear-gradient(145deg, #f6fbff, #e0ebf5);
  border-radius: var(--r);
  box-shadow: var(--out);
  padding: 26px 22px 32px;
}

.content div > section { scroll-margin-top: 96px; }

.content div > section + section {
  margin-top: 34px;
  padding-top: 30px;
  border-top: 1px solid rgba(23, 31, 38, 0.1);
}

.content div p { margin: 0 0 17px; }
.content div p:last-child { margin-bottom: 0; }

.content div h2 {
  margin: 0 0 15px;
  font-size: clamp(21px, 3.3vw, 29px);
  line-height: 1.32;
  font-weight: 800;
  letter-spacing: -0.015em;
  font-family: "Playfair Display", "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

.content div h2 > span,
.content div h3 > span {
  background: linear-gradient(180deg, transparent 64%, var(--pink) 64%);
  padding: 0 0.12em;
}

.content div h3 {
  margin: 26px 0 12px;
  font-size: 20px;
  line-height: 1.4;
  font-weight: 700;
}

.content div ul,
.content div ol {
  margin: 0 0 17px;
  padding-left: 1.35em;
}

.content div li { margin: 7px 0; }

.content div a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--pink);
}

.content div a:hover { border-bottom-color: #d9a9c0; }

.content div strong { font-weight: 800; }

.content div blockquote {
  margin: 22px 0;
  padding: 16px 18px;
  border-radius: 14px;
  background: #eaf3fb;
  box-shadow: var(--in);
  color: var(--ink-2);
}

.content div table {
  width: 100%;
  border-collapse: collapse;
  font-size: 16px;
  margin: 0 0 18px;
  display: block;
  overflow-x: auto;
}

.content div th,
.content div td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid rgba(23, 31, 38, 0.1);
}

.content div img {
  border-radius: 14px;
  box-shadow: var(--out-sm);
  margin: 18px 0;
}

.side {
  position: sticky;
  top: 78px;
  background: linear-gradient(145deg, #f7fbff, #dde9f4);
  border-radius: var(--r);
  box-shadow: var(--out);
  padding: 20px 16px 22px;
}

.side h2 {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.side h2 > span,
.footform h2 > span {
  background: linear-gradient(180deg, transparent 62%, var(--pink) 62%);
  padding: 0 0.14em;
}

.side ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.side a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 16px;
  line-height: 1.5;
  text-decoration: none;
  color: var(--ink-2);
  box-shadow: inset 0 0 0 1px rgba(23, 31, 38, 0.07);
  transition: color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.side a:hover {
  color: var(--ink);
  background: #eff6fc;
  box-shadow: var(--in);
}

footer {
  padding: 32px 16px 24px;
  background: linear-gradient(145deg, #edf4fb, #dee9f3);
  border-radius: 34px 34px 0 0;
  box-shadow: -6px -6px 16px rgba(255, 255, 255, 0.9), 0 -10px 24px rgba(23, 31, 38, 0.08);
}

.foot {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: flex-start;
}

address {
  font-style: normal;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.footform {
  flex: 1 1 268px;
  max-width: 348px;
}

.footform h2 {
  margin: 0 0 11px;
  font-size: 16px;
  font-weight: 700;
}

.footform form {
  display: flex;
  gap: 10px;
}

.footform input {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 44px;
  padding: 10px 14px;
  border: 0;
  border-radius: 12px;
  background: #e2ecf6;
  box-shadow: var(--in);
  font-family: inherit;
  font-size: 16px;
  color: var(--ink);
}

.footform input::placeholder { color: #77848f; }

.footform button {
  min-height: 44px;
  padding: 10px 20px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(145deg, #f8fcff, #d8e6f2);
  box-shadow: var(--out-sm);
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.footform button:active {
  transform: scale(0.96);
  box-shadow: var(--in);
}

.footlinks ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
  justify-content: flex-end;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footlinks a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 12px;
  border-radius: 10px;
  font-size: 16px;
  text-decoration: none;
  color: var(--ink-2);
  transition: color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.footlinks a:hover {
  color: var(--ink);
  background: #eff6fc;
  box-shadow: var(--out-sm);
}

.copy {
  max-width: 1180px;
  margin: 24px auto 0;
  padding-top: 16px;
  border-top: 1px solid rgba(23, 31, 38, 0.1);
  font-size: 14px;
  color: var(--ink-2);
  text-align: center;
}

.rv .content div > section {
  opacity: 0.001;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s cubic-bezier(0.3, 0.7, 0.3, 1);
}

.rv .content div > section.in {
  opacity: 1;
  transform: none;
}

@media (max-width: 900px) {
  .wrap { grid-template-columns: minmax(0, 1fr); }
  .side { position: static; top: auto; margin-top: 6px; }
  .content div > section { scroll-margin-top: 84px; }
  .footlinks ul { justify-content: flex-start; }
}

@media (max-width: 620px) {
  body { font-size: 16.5px; }
  .strip { font-size: 13px; letter-spacing: 0.08em; padding: 6px 12px; }
  .hero {
    height: 38vh;
    min-height: 252px;
    max-height: none;
    border-radius: 0 0 26px 26px;
    margin-bottom: 20px;
  }
  .hero-copy { padding: 16px 16px 20px; }
  .hero h1 { font-size: clamp(25px, 8vw, 36px); }
  main { padding: 0 12px 34px; }
  .content > div { padding: 20px 15px 26px; border-radius: 16px; }
  .side { padding: 18px 14px 20px; }
  footer { padding: 26px 14px 22px; border-radius: 26px 26px 0 0; }
  .foot { gap: 20px; }
  .footform { max-width: none; }
  .copy { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rv .content div > section {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .dock a, .side a, .brand, .footform button { transition: none; }
}

button[aria-expanded]{min-width:44px;min-height:44px}