/* 首页标准化模型对比，与相邻模块保持一致的紧凑布局。 */
#homeStandardization {
  --std-blue: #087ddd;
  --std-ink: #173d59;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 52px 0 44px;
  background: #f3f9fd;
  border-bottom: 1px solid #e2edf5;
  scroll-margin-top: 98px;
}
#homeStandardization .std-content {
  position: relative;
  z-index: 2;
  width: calc(100% - var(--home-gutter) - var(--home-gutter));
  max-width: none;
}
.std-scene, .std-atmosphere, .std-wave {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}
.std-scene {
  background: url('../generated/home-standardization-scene-v1.png') center bottom / cover no-repeat;
  opacity: .25;
}
.std-atmosphere {
  background: linear-gradient(180deg, #f7fbfef5, #f3f9fdd6 48%, #f3f9fded);
}
.std-wave { top: auto; height: 100px; opacity: .18; }
.std-wave svg { width: 100%; height: 100%; fill: none; stroke: #66bde3; stroke-width: 1; }
.std-icon-defs { position: absolute; overflow: hidden; pointer-events: none; }

.std-heading { text-align: center; margin: 0 auto 26px; }
.std-heading .eyebrow {
  font-size: 10px;
  letter-spacing: .17em;
  color: #6695b7;
  margin-bottom: 12px;
}
.std-heading h2 {
  font-size: clamp(30px, 2.3vw, 36px);
  font-weight: 750;
  letter-spacing: -.035em;
  line-height: 1.35;
  color: #103b5e;
  margin: 0 0 8px;
}
.std-title-accent { color: var(--std-blue); }
.std-question { color: #103b5e; }
.std-subtitle { font-size: 17px; line-height: 1.6; color: #39739f; letter-spacing: .035em; margin: 0; }
.std-title-rule { display: block; width: 40px; height: 2px; margin: 12px auto 14px; background: var(--std-blue); }
.std-description { max-width: 880px; margin: 0 auto; font-size: 13px; line-height: 1.85; color: #6a8599; }

.std-comparison {
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(176px, 11.5vw, 224px) minmax(0, 1fr);
  gap: clamp(24px, 2vw, 36px);
  align-items: stretch;
}
.std-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid #dce8f1;
  border-radius: 12px;
  overflow: hidden;
  background: #ffffffed;
  box-shadow: 0 8px 24px #1b58850a;
}
.std-standard { border-color: #add8ed; box-shadow: 0 8px 24px #0b78b710; }
.std-card-heading {
  display: flex;
  flex: none;
  align-items: center;
  gap: 14px;
  min-height: 86px;
  padding: 14px 22px;
  background: #edf3f7;
  border-bottom: 1px solid #e2ebf2;
}
.std-card-heading h3 { font-size: 24px; line-height: 1.4; font-weight: 700; color: #425f75; margin: 0 0 3px; }
.std-card-heading p { font-size: 14px; line-height: 1.6; color: #718b9e; margin: 0; }
.std-card-mark { width: 38px; height: 38px; flex: none; display: grid; place-items: center; color: #7b94a6; }
.std-card-mark svg { width: 35px; height: 35px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.std-traditional .std-card-heading { background: #081d2a; border-bottom-color: transparent; }
.std-traditional .std-card-heading h3 { color: #fff; }
.std-traditional .std-card-heading p,
.std-traditional .std-card-mark { color: #dce7ee; }
.std-standard .std-card-heading { background: linear-gradient(112deg, #0878c5, #048bae 76%, #0fa995); border-bottom-color: transparent; }
.std-standard .std-card-heading h3 { color: #fff; }
.std-standard .std-card-heading p { color: #e9f8ff; }
.std-standard .std-card-mark svg { fill: #fff; stroke: #fff; }
.std-standard .std-card-mark svg path { stroke: #0588c9; stroke-width: 3; }

.std-items { display: grid; flex: 1; grid-template-rows: repeat(4, 1fr); list-style: none; padding: 6px 18px; margin: 0; }
.std-items li {
  min-width: 0;
  min-height: 80px;
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  padding: 8px 2px;
  border-bottom: 1px solid #e7eef4;
  transition: background .2s;
}
.std-items li:last-child { border-bottom: 0; }
.std-items li > div { min-width: 0; flex: 1; }
.std-items h4 { font-size: 19px; line-height: 1.5; font-weight: 650; color: #365267; margin: 0 0 4px; }
.std-items p { font-size: 15px; line-height: 1.65; color: #6c8597; margin: 0; }
.std-item-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: #eef3f7; color: #8b9fae; flex: none; }
.std-item-icon svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.std-standard .std-items { background: #fafdff; }
.std-standard .std-items h4 { color: #0876b7; }
.std-standard .std-item-icon { background: #eaf6fd; color: #098de2; }
.std-standard .std-items li:nth-child(even) .std-item-icon { color: #13a88f; }
.std-traditional .std-items li.is-active { background: #f3f7fa; }
.std-standard .std-items li.is-active { background: #edf8ff; }

.std-bridge { position: relative; display: grid; place-items: center; color: #248ac1; }
.std-bridge::before { content: ""; position: absolute; width: 1px; top: 30px; bottom: 30px; left: 50%; background: linear-gradient(180deg, transparent, #bdddeb 30%, #bdddeb 70%, transparent); }
.std-vs { position: relative; display: grid; place-items: center; width: clamp(104px, 7vw, 120px); height: clamp(104px, 7vw, 120px); border: 2px solid #b7d8ec; border-radius: 50%; background: #fff; font-size: clamp(34px, 2vw, 38px); line-height: 1; font-weight: 800; letter-spacing: .04em; color: #1a60ad; box-shadow: 0 8px 24px #1a60ad14, 0 0 0 8px #ffffffb3; }

.std-footer { display: flex; align-items: center; justify-content: center; gap: 28px; margin-top: 22px; }
.std-footer > p { margin: 0; font-size: 12px; color: #7690a3; }
.std-cta { display: inline-flex; align-items: center; justify-content: center; gap: 22px; min-height: 44px; padding: 10px 22px; border: 1px solid transparent; border-radius: 5px; background: linear-gradient(120deg, #1468a7, #0785cf); color: #fff; font-size: 13px; font-weight: 600; box-shadow: 0 6px 16px #076aa712; transition: box-shadow .2s, background .2s; }
.std-cta svg { width: 19px; height: 19px; transition: transform .2s; }
.std-cta:hover { color: #fff; background: #096aa9; box-shadow: 0 8px 20px #076aa724; }
.std-cta:hover svg { transform: translateX(3px); }
.std-cta:focus-visible { outline: 2px solid #087ddd; outline-offset: 4px; }

@media (max-width: 1180px) {
  .std-comparison { grid-template-columns: minmax(0, 1fr) 120px minmax(0, 1fr); gap: 20px; }
  .std-card-heading { padding: 12px 18px; gap: 12px; }
  .std-card-heading h3 { font-size: 22px; }
  .std-card-heading p { font-size: 13px; }
  .std-items { padding: 6px 16px; }
  .std-items h4 { font-size: 16px; }
  .std-items p { font-size: 14px; }
  .std-item-icon { width: 36px; height: 36px; }
  .std-item-icon svg { width: 22px; height: 22px; }
  .std-vs { width: 80px; height: 80px; font-size: 27px; }
}
@media (max-width: 980px) {
  #homeStandardization { padding: 46px 0 40px; }
  .std-heading h2 { font-size: 30px; }
  .std-description { max-width: 700px; font-size: 12px; }
  .std-description br { display: none; }
  .std-comparison { grid-template-columns: minmax(0, 1fr) 96px minmax(0, 1fr); gap: 16px; }
  .std-card-heading { padding: 12px 15px; gap: 10px; min-height: 76px; }
  .std-card-heading h3 { font-size: 20px; }
  .std-card-heading p { font-size: 12px; }
  .std-card-mark, .std-card-mark svg { width: 28px; height: 28px; }
  .std-items { padding: 6px 13px; }
  .std-items li { min-height: 92px; gap: 10px; }
  .std-item-icon { width: 32px; height: 32px; }
  .std-item-icon svg { width: 20px; height: 20px; }
  .std-items h4 { font-size: 15px; }
  .std-items p { font-size: 13px; }
  .std-vs { width: 68px; height: 68px; font-size: 24px; }
}
@media (max-width: 700px) {
  #homeStandardization { padding: 38px 0 34px; scroll-margin-top: 88px; }
  .std-heading { margin-bottom: 22px; }
  .std-heading .eyebrow { font-size: 8px; letter-spacing: .14em; margin-bottom: 11px; }
  .std-heading h2 { font-size: clamp(24px, 6.6vw, 30px); line-height: 1.4; margin-bottom: 9px; }
  .std-title-accent { display: block; }
  .std-subtitle { font-size: 14px; letter-spacing: .02em; }
  .std-title-rule { width: 34px; margin: 11px auto 13px; }
  .std-description { font-size: 11px; line-height: 1.8; }
  .std-comparison { grid-template-columns: minmax(0, 1fr); gap: 16px; width: 100%; max-width: none; }
  .std-card-heading { padding: 12px 16px; min-height: 72px; gap: 12px; }
  .std-card-heading h3 { font-size: 22px; }
  .std-card-heading p { font-size: 13px; }
  .std-card-mark, .std-card-mark svg { width: 30px; height: 30px; }
  .std-items { padding: 4px 14px; }
  .std-items li { min-height: 80px; padding: 8px 1px; gap: 11px; }
  .std-item-icon { width: 34px; height: 34px; }
  .std-items h4 { font-size: 16px; line-height: 1.55; }
  .std-items p { font-size: 13px; }
  .std-bridge { min-height: 64px; }
  .std-bridge::before { width: 100%; height: 1px; inset: 50% 0 auto; background: linear-gradient(90deg, transparent, #bdddeb 30%, #bdddeb 70%, transparent); }
  .std-vs { width: 64px; height: 64px; font-size: 22px; }
  .std-footer { flex-direction: column; gap: 12px; margin-top: 20px; }
  .std-footer > p { font-size: 11px; }
  .std-cta { min-height: 43px; font-size: 12px; padding-inline: 20px; }
  .std-scene { opacity: .15; background-size: auto 100%; }
  .std-wave { height: 80px; }
}
@media (max-width: 360px) {
  .std-card-heading { padding-inline: 14px; gap: 10px; }
  .std-card-heading h3 { font-size: 20px; }
  .std-items { padding-inline: 12px; }
  .std-items li { gap: 9px; }
  .std-item-icon { width: 28px; height: 28px; }
  .std-item-icon svg { width: 18px; height: 18px; }
  .std-items h4 { font-size: 14px; }
  .std-items p { font-size: 12px; }
}
@media (prefers-reduced-motion: no-preference) {
  #homeStandardization.is-visible .std-card { animation: std-card-arrive .4s ease-out both; }
  #homeStandardization.is-visible .std-standard { animation-delay: .06s; }
  @keyframes std-card-arrive { from { transform: translateY(8px); opacity: .7; } to { transform: translateY(0); opacity: 1; } }
}
@media (prefers-reduced-motion: reduce) {
  #homeStandardization *, #homeStandardization *::before, #homeStandardization *::after { transition: none; animation: none; }
}

/* 首页两处主标题统一字号，优势卡片延续上下交错的棋盘布局。 */
#homeStandardization .std-heading h2,
#homeAdvantages .home-section-heading h2 {
  font-size: 42px;
  font-weight: 750;
  line-height: 1.35;
  letter-spacing: -.03em;
  margin: 0 0 12px;
}
#homeStandardization .std-heading { margin-bottom: 32px; }
#homeAdvantages { --advantage-blue: #1a60ad; }
#homeAdvantages > .container { width: calc(100% - var(--home-gutter) - var(--home-gutter)); max-width: none; }
#homeAdvantages .home-section-heading { margin-bottom: 40px; }
#homeStandardization .std-subtitle,
#homeAdvantages .section-subtitle { font-size: 17px; line-height: 1.6; letter-spacing: .035em; }
#homeAdvantages .advantage-card,
#homeAdvantages .advantage-card:nth-child(even) { background: var(--advantage-blue); }
#homeAdvantages .advantage-card:hover { filter: none; }
#homeAdvantages .advantage-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr) auto minmax(0, 1fr);
  justify-items: center;
  width: 100%;
  aspect-ratio: .95;
  min-height: 180px;
  padding: 24px 12px;
}
#homeAdvantages .advantage-number { top: 16px; left: 16px; font-size: 11px; }
#homeAdvantages .advantage-card svg { grid-row: 1; align-self: end; width: 36px; height: 36px; margin: 0 0 18px; }
#homeAdvantages .advantage-card h3 { grid-row: 2; width: 100%; font-size: clamp(16px, 1.3vw, 22px); line-height: 1.5; margin: 0; }
#homeAdvantages .advantage-card p { grid-row: 3; align-self: start; width: 100%; font-size: 14px; line-height: 1.7; margin: 8px 0 0; }

@media (max-width: 1180px) {
  #homeAdvantages .home-advantages {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    grid-template-rows: auto;
    gap: 14px;
    background: none;
  }
  #homeAdvantages .advantage-card:nth-child(n) {
    grid-column: auto;
    grid-row: auto;
    aspect-ratio: 1.18;
    min-height: 185px;
    border-radius: 6px;
  }
  #homeAdvantages .advantage-card:last-child { grid-column: 3 / 5; aspect-ratio: auto; }
  #homeAdvantages .advantage-card h3 { font-size: 19px; }
  #homeAdvantages .advantage-card p { font-size: 14px; }
}
@media (max-width: 980px) {
  #homeStandardization .std-heading h2,
  #homeAdvantages .home-section-heading h2 { font-size: 36px; }
  #homeAdvantages .advantage-card h3 { font-size: 18px; }
  #homeAdvantages .advantage-card p { font-size: 14px; }
  #homeAdvantages .advantage-card svg { width: 34px; height: 34px; margin-bottom: 16px; }
}
@media (max-width: 700px) {
  #homeStandardization .std-heading h2,
  #homeAdvantages .home-section-heading h2 { font-size: clamp(28px, 7.2vw, 34px); }
  #homeStandardization .std-heading { margin-bottom: 26px; }
  #homeAdvantages .home-section-heading { margin-bottom: 30px; }
  #homeStandardization .std-subtitle,
  #homeAdvantages .section-subtitle { font-size: 14px; letter-spacing: .02em; }
  #homeAdvantages .home-advantages { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  #homeAdvantages .advantage-card:nth-child(n) { aspect-ratio: 1.15; min-height: 204px; padding: 22px 12px; }
  #homeAdvantages .advantage-card:last-child { grid-column: 1 / -1; aspect-ratio: auto; }
  #homeAdvantages .advantage-card h3 { font-size: 17px; }
  #homeAdvantages .advantage-card p { font-size: 13px; }
  #homeAdvantages .advantage-card svg { width: 34px; height: 34px; margin-bottom: 16px; }
  #homeAdvantages .advantage-number { top: 13px; left: 13px; }
}
@media (max-width: 360px) {
  #homeAdvantages .advantage-card h3 { font-size: 16px; }
  #homeAdvantages .advantage-card p { font-size: 12px; }
}