:root {
  --mpls-hero-title: 38px;
  --mpls-hero-line: 54px;
  --mpls-radius-pill: 999px;
  --mpls-card-shadow: 0 16px 36px rgba(22, 100, 255, 0.1);
  --mpls-card-shadow-hover: 0 22px 48px rgba(22, 100, 255, 0.18);
  --shadow-card: 0 12px 34px rgba(15, 61, 133, 0.1);
  --mpls-gradient-blue: linear-gradient(135deg, #1664ff 0%, #2d82ff 58%, #5ebeff 100%);
  --mpls-gradient-soft: linear-gradient(135deg, #eef6ff 0%, #ffffff 58%, #dcecff 100%);
  --button-font-size: 14px;
  --button-line-height: 22px;
  --button-font-weight: 600;
}
html {
  scroll-behavior: smooth;
}
.mpls-container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}
.mpls-section-heading {
  max-width: 880px;
  margin: 0 auto 38px;
  text-align: center;
}
.mpls-section-heading__title {
  margin: 0;
  color: var(--color-text);
  font-size: var(--font-size-title);
  font-weight: var(--weight-bold);
  line-height: var(--line-title);
}
.mpls-section-heading__subtitle {
  margin: 12px 0 0;
  color: var(--color-muted);
  font-size: var(--font-size-subtitle);
  line-height: var(--line-subtitle);
}
.mpls-section-heading--inverse .mpls-section-heading__title,
.mpls-section-heading--inverse .mpls-section-heading__subtitle {
  color: #ffffff;
}
.button {
  font-size: var(--button-font-size);
  font-weight: var(--button-font-weight);
  line-height: var(--button-line-height);
}
.button--light:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: #ffffff;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  background: #ffffff;
  box-shadow: 0 1px 0 rgba(13, 31, 67, 0.08);
}
.site-header__inner {
  width: auto;
  height: 100%;
  margin: 0 40px;
  display: flex;
  align-items: center;
  gap: 22px;
}
.site-header__brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 12px;
}
.site-header__logo {
  width: 116px;
  height: 46px;
  object-fit: contain;
}
.site-header__divider {
  width: auto;
  height: auto;
}
.site-header__slogan {
  width: 200px;
  height: 24px;
  object-fit: contain;
}
.site-header__nav {
  display: flex;
  align-items: stretch;
  justify-content: center;
  flex: 1 1 auto;
  height: 100%;
}
.site-header__nav-item {
  position: relative;
  display: flex;
  align-items: center;
}
.site-header__nav-link {
  display: inline-flex;
  align-items: center;
  height: 100%;
  padding: 0 15px;
  color: var(--color-text);
  font-size: 16px;
  font-weight: 500;
}
.site-header__nav-item--active .site-header__nav-link,
.site-header__nav-link:hover {
  color: var(--color-primary);
}
.site-header__dropdown {
  position: absolute;
  left: 50%;
  top: calc(100% - 1px);
  width: 190px;
  padding: 12px;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  box-shadow: var(--shadow-card);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 8px);
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}
.site-header__nav-item:hover .site-header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}
.site-header__dropdown a {
  display: block;
  padding: 9px 12px;
  border-radius: var(--radius-small);
  color: var(--color-muted);
}
.site-header__dropdown a:hover {
  color: var(--color-primary);
  background: #f2f6ff;
}
.site-header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}
.site-header__hotline {
  min-width: 150px;
  color: #8b95a6;
  text-align: right;
  line-height: 18px;
}
.site-header__hotline span {
  display: inline-flex;
  align-items: center;
}
.site-header__hotline span img {
  width: 16px;
  height: 16px;
  margin-right: 4px;
}
.site-header__hotline strong {
  display: block;
  color: var(--color-primary);
  font-size: 22px;
  line-height: 26px;
}
.site-header__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 84px;
  height: 40px;
  border: 1px solid var(--color-primary);
  border-radius: 8px;
  color: #ffffff;
  background: var(--color-primary);
  transition: color 0.2s ease, background 0.2s ease;
}
.site-header__button--ghost {
  color: var(--color-primary);
  background: #ffffff;
}
.site-header__button:hover {
  color: #ffffff;
  background: var(--color-primary-dark);
}
.site-header__menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.site-header__menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px 0;
  background: var(--color-text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.site-header--open .site-header__menu-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.site-header--open .site-header__menu-toggle span:nth-child(2) {
  opacity: 0;
}
.site-header--open .site-header__menu-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.mpls-hero {
  height: 500px;
  overflow: hidden;
  background: url("/img/v2026/sdwan/mpls/mpls-banner-b.jpg") center / cover no-repeat;
}
.mpls-hero__inner {
  position: relative;
  width: 1360px;
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
}
.mpls-hero__content {
  position: relative;
  z-index: 2;
  flex: 0 0 510px;
}
.mpls-hero__title {
  margin: 0 0 18px;
  color: var(--color-text);
  font-size: var(--mpls-hero-title);
  font-weight: var(--weight-bold);
  line-height: var(--mpls-hero-line);
}
.mpls-hero__text {
  max-width: 590px;
  height: 60px;
  margin: 0;
  color: #1d2129;
  font-size: 18px;
  line-height: 30px;
}
.mpls-hero__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 30px;
}
.mpls-hero__actions .button {
  min-width: 210px;
  min-height: 48px;
  font-size: 16px;
  font-weight: 400;
}
.mpls-hero__visual {
  position: relative;
  z-index: 1;
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
  pointer-events: none;
}
.mpls-hero__visual::before {
  content: "";
  position: absolute;
  right: 4%;
  top: 50%;
  width: 520px;
  height: 520px;
  max-width: 90%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.44);
  transform: translateY(-50%);
}
.mpls-hero__visual img {
  position: relative;
  width: min(620px, 56vw);
  object-fit: contain;
  filter: drop-shadow(0 26px 36px rgba(18, 85, 180, 0.2));
}
.mpls-overview {
  background: #ffffff;
}
.mpls-topology {
  width: 100%;
  max-width: 1360px;
  margin: 8px auto 0;
  padding: 18px;
  border: 1px solid #e7edf7;
  border-radius: var(--radius-card);
  background: #ffffff;
  box-shadow: 0 16px 46px rgba(27, 77, 150, 0.08);
}
.mpls-topology__diagram {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}
.mpls-topology__cloud {
  fill: url("/img/v2026/sdwan/mpls/#cloudGradient");
  stroke: #1664ff;
  stroke-width: 3;
}
.mpls-topology__line {
  fill: none;
  stroke: #1664ff;
  stroke-width: 3;
  stroke-linecap: round;
  marker-end: url("/img/v2026/sdwan/mpls/#arrow");
}
.mpls-topology__line--soft {
  stroke: #80b2ff;
  stroke-dasharray: 8 8;
  marker-end: none;
}
.mpls-topology__line--access {
  stroke-width: 2.4;
}
.mpls-topology__router rect {
  fill: #1664ff;
  stroke: #ffffff;
  stroke-width: 3;
}
.mpls-topology__router text {
  fill: #ffffff;
  font-size: 18px;
  font-weight: 700;
}
.mpls-topology__router--edge rect {
  fill: #2d82ff;
}
.mpls-topology__site path {
  fill: #ffffff;
  stroke: #1664ff;
  stroke-width: 3;
}
.mpls-topology__site text,
.mpls-topology__label {
  fill: #1d2129;
  font-size: 17px;
  font-weight: 700;
}
.mpls-topology__label--cloud {
  fill: #1664ff;
  font-size: 20px;
}
.mpls-topology__label--brand {
  font-size: 22px;
}
.mpls-topology__office-card {
  fill: #ffffff;
  stroke: #1664ff;
  stroke-width: 3;
  filter: drop-shadow(0 10px 16px rgba(22, 100, 255, 0.12));
}
.mpls-topology__office-shadow {
  fill: rgba(22, 100, 255, 0.12);
}
.mpls-topology__office-face {
  stroke: #1664ff;
  stroke-width: 2.2;
  stroke-linejoin: round;
}
.mpls-topology__office-face--front {
  fill: #f8fbff;
}
.mpls-topology__office-face--side {
  fill: #dcecff;
}
.mpls-topology__office-face--top {
  fill: #ffffff;
}
.mpls-topology__office-base,
.mpls-topology__office-window {
  fill: none;
  stroke: #1664ff;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.mpls-topology__office-base {
  stroke-width: 2.8;
  opacity: 0.72;
}
.mpls-topology__office-window {
  stroke-width: 2;
}
.mpls-topology__office-label-bg {
  fill: #ffffff;
  stroke: #d8e6ff;
  stroke-width: 1;
}
.mpls-topology__office text {
  fill: #1d2129;
  font-size: 14px;
  font-weight: 700;
}
.mpls-features {
  background: #f2f6ff;
}
.mpls-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.mpls-feature-card {
  position: relative;
  padding: 28px 28px 26px;
  border: 1px solid #e9eef6;
  border-radius: var(--radius-card);
  background: #ffffff;
  box-shadow: 0 10px 28px rgba(39, 72, 121, 0.05);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.mpls-feature-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 58px;
  border-radius: 0 4px 4px 0;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.mpls-feature-card:hover {
  border-color: #b8ceff;
  box-shadow: var(--mpls-card-shadow-hover);
  transform: translateY(-4px);
}
.mpls-feature-card:hover::after {
  opacity: 1;
}
.mpls-feature-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin-bottom: 10px;
  background: transparent;
}
.mpls-feature-card__icon img {
  display: block;
  width: 64px;
  height: 64px;
  object-fit: contain;
}
.mpls-choice-card__icon img {
  display: block;
  width: 38px;
  height: 38px;
  object-fit: contain;
}
.mpls-feature-card__title,
.mpls-choice-card__title,
.mpls-scene-card__title,
.mpls-product-card__title {
  margin: 0;
  color: var(--color-text);
  font-size: var(--font-size-card-title);
  font-weight: var(--weight-bold);
  line-height: 30px;
}
.mpls-feature-card__text,
.mpls-choice-card__text,
.mpls-scene-card__text,
.mpls-product-card__text {
  margin: 10px 0 0;
  color: var(--color-muted);
  font-size: var(--font-size-small);
  line-height: var(--line-body);
}
.mpls-feature-card__action {
  position: absolute;
  right: 24px;
  top: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 96px;
  height: 40px;
  border-radius: var(--radius-card);
  background: var(--color-primary);
  color: #ffffff;
  font-size: 14px;
  font-weight: var(--weight-semibold);
  line-height: 1;
  opacity: 0;
  box-shadow: 0 10px 20px rgba(22, 100, 255, 0.24);
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, background 0.2s ease;
  pointer-events: none;
}
.mpls-feature-card:hover .mpls-feature-card__action,
.mpls-feature-card:focus-within .mpls-feature-card__action {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.mpls-feature-card__action:hover {
  background: var(--color-primary-dark);
  color: #fff;
}
.mpls-choice {
  position: relative;
  overflow: hidden;
  background-color: #2966e1;
  background-image: url("/img/v2026/sdwan/mpls/组-91.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}
.mpls-choice .mpls-container {
  position: relative;
  z-index: 1;
}
.mpls-choice__stats {
  width: min(680px, 100%);
  margin: 0 auto 26px;
  padding: 14px 36px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  border-radius: var(--mpls-radius-pill);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.mpls-choice__stat {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}
.mpls-choice__stat strong {
  font-size: 30px;
  line-height: 40px;
}
.mpls-choice__stat span {
  font-size: 14px;
}
.mpls-choice__map {
  width: 100%;
  padding-bottom: 54.219%;
  margin: 0 auto;
  visibility: hidden;
  opacity: 0;
}
.mpls-choice__mapbg {
  display: none;
}
.mpls-choice__cards {
  margin-top: -130px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}
.mpls-choice-card {
  padding: 26px 24px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius-card);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 16px 34px rgba(10, 56, 150, 0.18);
  backdrop-filter: blur(10px);
  transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.mpls-choice-card:hover {
  border-color: rgba(255, 255, 255, 0.48);
  background: rgba(255, 255, 255, 0.24);
  transform: translateY(-4px);
}
.mpls-choice-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 15px;
  border-radius: 8px;
  color: #8af0da;
  background: rgba(255, 255, 255, 0.14);
}
.mpls-choice-card__title,
.mpls-choice-card__text {
  color: #ffffff;
}
.mpls-choice-card__text {
  opacity: 0.88;
}
.mpls-scenes {
  background: #ffffff;
}
.mpls-scene-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}
.mpls-scene-card {
  overflow: hidden;
  border: 1px solid #e8edf5;
  border-radius: var(--radius-card);
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(28, 73, 130, 0.07);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.mpls-scene-card:hover {
  border-color: #b8ceff;
  box-shadow: var(--mpls-card-shadow-hover);
  transform: translateY(-4px);
}
.mpls-scene-card__image {
  display: block;
  overflow: hidden;
  background: #edf5ff;
}
.mpls-scene-card__image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.mpls-scene-card:hover .mpls-scene-card__image img {
  transform: scale(1.04);
}
.mpls-scene-card__body {
  padding: 22px 20px 24px;
}
.mpls-scene-card__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}
.mpls-scene-card__list li {
  position: relative;
  padding-left: 18px;
  color: var(--color-text);
  font-size: var(--font-size-small);
  line-height: 26px;
}
.mpls-scene-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}
.mpls-scenes__actions {
  margin-top: 34px;
  text-align: center;
}
.mpls-scenes__actions .button {
  width: 230px;
  min-height: 48px;
  font-size: 16px;
  font-weight: 400;
}
.mpls-cases {
  background: #f7faff;
}
.mpls-case-slider {
  position: relative;
  width: var(--viewport-client-width, 100vw);
  max-width: var(--viewport-client-width, 100vw);
  margin-left: calc((var(--viewport-client-width, 100vw) - 100%) / -2);
  padding: 28px 36px;
  --case-side-width: clamp(220px, 22vw, 420px);
}
.mpls-case-slider__viewport {
  display: flex;
  align-items: stretch;
  gap: 24px;
  overflow: visible;
  padding: 0;
}
.mpls-case-card {
  position: relative;
  flex: 0 0 var(--case-side-width);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  min-height: 392px;
  border: 0;
  border-radius: var(--radius-card);
  background: #1c4077;
  box-shadow: 0 18px 42px rgba(16, 61, 130, 0.14);
  cursor: pointer;
  opacity: 0.72;
  transform: scale(0.96);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.5s cubic-bezier(0.4, 0, 0.2, 1), flex 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.mpls-case-card--active {
  order: 2;
  flex: 0 0 calc(100% - (var(--case-side-width) * 2) - 48px);
  opacity: 1;
  transform: scale(1);
  box-shadow: 0 24px 56px rgba(16, 61, 130, 0.22);
}
.mpls-case-card--prev {
  order: 1;
  flex: 0 0 var(--case-side-width);
}
.mpls-case-card--next {
  order: 3;
  flex: 0 0 var(--case-side-width);
}
.mpls-case-card:not(.mpls-case-card--active):not(.mpls-case-card--prev):not(
    .mpls-case-card--next
  ) {
  display: none;
}
.mpls-case-card__image {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.mpls-case-card--active .mpls-case-card__image {
  transform: scale(1);
}
.mpls-case-card:hover .mpls-case-card__image {
  transform: scale(1.04);
}
.mpls-case-card--active:hover .mpls-case-card__image {
  transform: scale(1.02);
}
.mpls-case-card__overlay {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(90deg, rgba(4, 18, 36, 0.86) 0%, rgba(8, 35, 68, 0.54) 46%, rgba(8, 35, 68, 0.14) 100%), linear-gradient(0deg, rgba(0, 0, 0, 0.24), rgba(0, 0, 0, 0.04));
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.mpls-case-card:not(.mpls-case-card--active) .mpls-case-card__overlay {
  opacity: 0.6;
}
.mpls-case-card__content {
  position: relative;
  z-index: 1;
  max-width: 590px;
  padding: 44px;
  color: #ffffff;
  transition: padding 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.mpls-case-card__title {
  margin: 0;
  color: #ffffff;
  font-size: 24px;
  font-weight: var(--weight-bold);
  line-height: 36px;
  transition: font-size 0.5s cubic-bezier(0.4, 0, 0.2, 1), line-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.mpls-case-card__text {
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
  line-height: 28px;
  overflow: hidden;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), margin 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.mpls-case-card__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 152px;
  min-height: 40px;
  margin-top: 24px;
  padding: 0 20px;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: var(--radius-small);
  color: #ffffff;
  font-size: 14px;
  overflow: hidden;
  transition: color 0.2s ease, background 0.2s ease, opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), margin 0.5s cubic-bezier(0.4, 0, 0.2, 1), padding 0.5s cubic-bezier(0.4, 0, 0.2, 1), min-width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.mpls-case-card__link:hover {
  color: var(--color-primary);
  background: #ffffff;
}
.mpls-case-card:not(.mpls-case-card--active) .mpls-case-card__content {
  padding: 26px;
}
.mpls-case-card:not(.mpls-case-card--active) .mpls-case-card__title {
  font-size: 18px;
  line-height: 28px;
}
.mpls-case-card:not(.mpls-case-card--active) .mpls-case-card__text {
  max-height: 0;
  margin: 0;
  opacity: 0;
}
.mpls-case-card:not(.mpls-case-card--active) .mpls-case-card__link {
  max-height: 0;
  min-width: 0;
  margin-top: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-color: transparent;
  opacity: 0;
}
.mpls-case-card--active .mpls-case-card__text {
  max-height: 200px;
  opacity: 1;
  transition-delay: 0.12s;
}
.mpls-case-card--active .mpls-case-card__link {
  max-height: 60px;
  opacity: 1;
  transition-delay: 0.22s;
}
.mpls-case-slider__button {
  position: absolute;
  top: 50%;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  color: var(--color-primary);
  background: #ffffff;
  box-shadow: var(--shadow-card);
  cursor: pointer;
  transform: translateY(-50%);
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}
.mpls-case-slider__button span {
  font-size: 30px;
  line-height: 30px;
}
.mpls-case-slider__button:hover {
  color: #ffffff;
  background: var(--color-primary);
  transform: translateY(-50%) scale(1.05);
}
.mpls-case-slider__button--prev {
  left: calc(50% - 668px);
}
.mpls-case-slider__button--next {
  right: calc(50% - 668px);
}
.mpls-case-slider__dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}
.mpls-case-slider__dot {
  width: 32px;
  height: 4px;
  padding: 0;
  border: 0;
  border-radius: var(--mpls-radius-pill);
  background: #c9d8f5;
  cursor: pointer;
  transition: width 0.2s ease, background 0.2s ease;
}
.mpls-case-slider__dot--active {
  width: 54px;
  background: var(--color-primary);
}
.mpls-products {
  padding: 52px 0 20px;
  background: #ffffff;
}
.mpls-product-heading {
  margin: 0 0 34px;
  text-align: center;
}
.mpls-product-heading h2 {
  margin: 0;
  color: #1d2129;
  font-size: 28px;
  font-weight: 700;
  line-height: 40px;
}
/* ===== 产品轮播 ===== */
.mpls-product-carousel {
  position: relative;
  overflow: visible;
  min-height: 375px;
}
.mpls-product-carousel__viewport {
  overflow: hidden;
  padding: 30px 0;
  margin: -30px 0;
}
.mpls-product-carousel__track {
  display: flex;
  gap: 32px;
  transition: transform 0.45s cubic-bezier(0.25, 0.1, 0.25, 1);
}
.mpls-product-carousel__dots {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 16px;
}
.mpls-product-carousel__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #c9d8f5;
  cursor: pointer;
  opacity: 0.72;
  transition: background 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
}
.mpls-product-carousel__dot--active {
  background: var(--color-primary);
  opacity: 1;
  transform: scale(1.25);
}
/* ===== 轮播箭头 ===== */
.mpls-product-carousel__arrow {
  position: absolute;
  top: 50%;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid #dfe7f3;
  border-radius: 50%;
  background: #ffffff;
  color: #1d2129;
  cursor: pointer;
  transform: translateY(-50%);
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
  opacity: 0.85;
}
.mpls-product-carousel__arrow:hover {
  border-color: #1664ff;
  background: #f0f5ff;
  box-shadow: 0 4px 12px rgba(22, 100, 255, 0.15);
  opacity: 1;
}
.mpls-product-carousel__arrow[disabled] {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}
.mpls-product-carousel__arrow svg {
  display: block;
  flex-shrink: 0;
}
.mpls-product-carousel__prev {
  left: -48px;
}
.mpls-product-carousel__next {
  right: -48px;
}
/* ===== 产品卡片 ===== */
.mpls-product-card {
  position: relative;
  display: flex;
  flex-shrink: 0;
  min-height: 236px;
  padding: 30px 32px;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid #dfe7f3;
  border-radius: var(--radius-card);
  background: #ffffff;
  box-shadow: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.mpls-product-card:hover {
  border-color: #b8ceff;
  box-shadow: 0 16px 38px rgba(38, 84, 140, 0.1);
  transform: translateY(-12px);
}
.mpls-product-card__icon {
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 24px;
  border-radius: var(--radius-card);
  background: #3965ff;
}
.mpls-product-card__icon img {
  display: block;
  width: auto;
  height: auto;
  max-width: 60%;
  max-height: 60%;
  object-fit: contain;
}
.mpls-product-card__title {
  font-size: 20px;
  line-height: 30px;
}
.mpls-product-card__text {
  margin-top: 6px;
  color: #7b7f89;
  font-size: 16px;
  line-height: 26px;
}
.mpls-product-card__action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 96px;
  max-height: 0;
  height: 40px;
  margin-top: 0;
  border-radius: var(--radius-card);
  background: #1664ff;
  color: #ffffff;
  font-size: 14px;
  font-weight: var(--weight-semibold);
  line-height: 1;
  overflow: hidden;
  opacity: 0;
  box-shadow: 0 10px 20px rgba(22, 100, 255, 0.22);
  transform: translateY(8px);
  transition: max-height 0.2s ease, margin-top 0.2s ease, opacity 0.2s ease, transform 0.2s ease, background 0.2s ease;
  pointer-events: none;
}
.mpls-product-card:hover .mpls-product-card__action,
.mpls-product-card:focus .mpls-product-card__action {
  max-height: 40px;
  margin-top: 20px;
  opacity: 1;
  transform: translateY(0);
}
.mpls-product-card:hover .mpls-product-card__action {
  background: var(--color-primary);
}
.mpls-product-card__action:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 14px 28px rgba(22, 100, 255, 0.32);
  transform: translateY(-2px);
}
.floating-backtop {
  position: fixed;
  right: 24px;
  bottom: 26px;
  z-index: 45;
  display: none;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: var(--shadow-card);
  cursor: pointer;
}
.floating-backtop--visible {
  display: inline-flex;
}
.floating-backtop img {
  width: 18px;
  height: 18px;
}
.toast {
  position: fixed;
  left: 50%;
  bottom: 36px;
  z-index: 100;
  padding: 10px 18px;
  border-radius: var(--mpls-radius-pill);
  color: #ffffff;
  background: rgba(29, 33, 41, 0.88);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.toast--visible {
  opacity: 1;
  transform: translate(-50%, 0);
}
@media (max-width: 1280px) {
  .site-header__slogan {
    display: none;
  }
  .site-header__nav-link {
    padding: 0 10px;
  }
  .site-header__inner {
    gap: 16px;
  }
  .mpls-feature-grid {
    gap: 18px;
  }
  .mpls-choice {
    background-image: none;
    background-color: #2966e1;
  }
  .mpls-choice__stats {
    margin-bottom: -50px;
  }
  .mpls-choice__mapcard {
    position: relative;
  }
  .mpls-choice__map {
    display: none;
  }
  .mpls-choice__mapbg {
    display: block;
    position: relative;
    width: 100%;
    top: 0;
    z-index: -1;
  }
  .mpls-choice__cards {
    margin-top: 0;
  }
  .mpls-product-carousel {
    min-height: unset;
  }
}
@media (max-width: 1024px) {
  :root {
    --section-y: 52px;
    --font-size-title: 25px;
    --font-size-subtitle: 16px;
    --mpls-hero-title: 32px;
    --mpls-hero-line: 46px;
  }
  .site-header__inner {
    justify-content: space-between;
  }
  .site-header__menu-toggle {
    display: block;
  }
  .site-header__nav,
  .site-header__actions {
    position: fixed;
    left: 0;
    right: 0;
    display: none;
    width: 100%;
    background: #ffffff;
  }
  .site-header__hotline {
    display: none;
  }
  .site-header__nav {
    top: var(--header-height);
    height: auto;
    flex-direction: column;
    padding: 12px 24px;
    box-shadow: 0 12px 22px rgba(24, 50, 89, 0.12);
  }
  .site-header--open .site-header__nav {
    display: flex;
  }
  .site-header__actions {
    top: calc(var(--header-height) + 310px);
    justify-content: flex-start;
    padding: 12px 24px 18px;
    box-shadow: 0 12px 22px rgba(24, 50, 89, 0.12);
  }
  .site-header--open .site-header__actions {
    display: flex;
  }
  .site-header__nav-item {
    display: block;
  }
  .site-header__nav-link {
    height: 44px;
    padding: 0;
  }
  .site-header__dropdown {
    position: static;
    width: 100%;
    padding: 0 0 6px;
    border: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .mpls-hero__inner {
    gap: 20px;
  }
  .mpls-hero__content {
    flex-basis: 440px;
  }
  .mpls-hero__visual img {
    width: min(520px, 54vw);
  }
  .mpls-feature-grid,
  .mpls-choice__cards,
  .mpls-scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .mpls-choice__cards {
    margin-top: 24px;
  }
  .mpls-case-slider__viewport {
    overflow: visible;
    flex-direction: column;
  }
  .mpls-case-card,
  .mpls-case-card--active {
    flex-basis: auto;
    opacity: 1;
    transform: none;
  }
  .mpls-case-card:not(.mpls-case-card--active) {
    display: none;
  }
  .mpls-case-slider__button--prev {
    left: 12px;
  }
  .mpls-case-slider__button--next {
    right: 12px;
  }
}
@media (max-width: 768px) {
  :root {
    --section-y: 30px;
    --font-size-title: 23px;
    --font-size-subtitle: 15px;
    --mpls-hero-title: 30px;
    --mpls-hero-line: 38px;
  }
  .mpls-container,
  .mpls-hero__inner,
  .site-header__inner {
    width: calc(100% - 32px);
  }
  .site-header__inner {
    margin: 0 auto;
  }
  .mpls-section-heading {
    margin-bottom: 22px;
  }
  .mpls-hero {
    min-height: 250px;
    height: auto;
    padding-bottom: 40px;
    background: url("/img/v2026/sdwan/mpls/banner-m.jpg") center top / cover no-repeat;
  }
  .mpls-hero__inner {
    align-items: flex-start;
    justify-content: flex-start;
    flex-direction: column;
    padding-top: 48px;
    gap: 0;
  }
  .mpls-hero__content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    max-width: 290px;
    flex: 0 1 auto;
  }
  .mpls-hero__title {
    order: 1;
    margin: 0;
  }
  .mpls-hero__text {
    order: 2;
    max-width: 100%;
    height: auto;
    margin: 6px 0 18px;
    overflow: hidden;
    color: var(--color-text);
    font-size: 14px;
    line-height: 22px;
    max-height: 44px;
  }
  .mpls-hero__actions {
    order: 3;
    flex-wrap: wrap;
    margin-top: 0;
  }
  .mpls-hero__actions .button {
    width: 140px;
    min-width: 0;
    height: 40px;
    min-height: 40px;
    line-height: 40px;
  }
  .mpls-hero__actions .button--light {
    display: none;
  }
  .mpls-hero__visual {
    position: absolute;
    right: -96px;
    bottom: 16px;
    opacity: 0.58;
  }
  .mpls-hero__visual::before {
    width: 360px;
  }
  .mpls-hero__visual img {
    width: 390px;
  }
  .mpls-topology {
    padding: 10px;
  }
  .mpls-topology__diagram {
    min-width: 0;
  }
  .mpls-choice {
    background-color: #2966e1;
    background-image: none;
    background-position: center top;
    background-size: auto;
  }
  .mpls-choice__map {
    width: 100vw;
    max-width: none;
    margin: 26px 0 28px calc(50% - 50vw);
    background: url("/img/v2026/sdwan/mpls/组 9.png") center / 200% auto no-repeat;
    visibility: visible;
    opacity: 1;
  }
  .mpls-feature-grid,
  .mpls-choice__cards,
  .mpls-scene-grid {
    grid-template-columns: 1fr;
  }
  .mpls-choice__cards {
    margin-top: 0;
  }
  .mpls-choice__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(4px, 2vw, 10px);
    border-radius: 24px;
    padding: clamp(12px, 4vw, 16px) clamp(8px, 3vw, 20px);
  }
  .mpls-choice__stat {
    min-width: 0;
    flex-direction: column;
    align-items: center;
    gap: 0;
    text-align: center;
  }
  .mpls-choice__stat strong {
    font-size: clamp(22px, 8vw, 30px);
    line-height: 1.15;
  }
  .mpls-choice__stat span {
    white-space: nowrap;
    font-size: clamp(11px, 3.2vw, 14px);
    line-height: 1.4;
  }
  .mpls-case-card {
    min-height: 430px;
  }
  .mpls-case-card__content {
    padding: 28px;
  }
  .mpls-case-card__title {
    font-size: 20px;
    line-height: 30px;
  }
  .mpls-case-card__text {
    font-size: 14px;
    line-height: 25px;
  }
  .mpls-products {
    padding: 48px 0;
  }
  .mpls-product-card {
    width: 100%;
    max-width: 100%;
    min-height: 0;
    padding: 26px;
    box-sizing: border-box;
  }
  .mpls-product-card__icon {
    width: 52px;
    height: 52px;
    margin-bottom: 18px;
  }
  .mpls-product-heading {
    margin-bottom: 34px;
  }
  .mpls-product-heading h2 {
    font-size: 28px;
    line-height: 38px;
  }
  .mpls-product-card__title {
    font-size: 21px;
    line-height: 30px;
  }
  .mpls-product-card__text {
    font-size: 15px;
    line-height: 26px;
  }
  .mpls-product-carousel__dots {
    display: flex;
  }
  .mpls-product-carousel__arrow {
    width: 36px;
    height: 36px;
  }
  .mpls-product-carousel__arrow svg {
    width: 20px;
    height: 20px;
  }
  .mpls-product-carousel__prev {
    left: -8px;
  }
  .mpls-product-carousel__next {
    right: -8px;
  }
  .floating-backtop {
    right: 16px;
    bottom: 18px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    box-shadow: var(--shadow-card);
  }
}
@media (max-width: 480px) {
  :root {
    --font-size-title: 22px;
    --mpls-hero-title: 30px;
    --mpls-hero-line: 38px;
  }
  .site-header__logo {
    width: 104px;
  }
  .site-header__divider {
    display: none;
  }
  .button {
    width: 100%;
  }
  .mpls-hero__actions {
    width: 100%;
  }
  .mpls-hero__inner {
    width: calc(100% - 52px);
    padding-top: 48px;
  }
  .mpls-hero__actions .button {
    width: 140px;
    min-width: 0;
    height: 40px;
    min-height: 40px;
  }
  .mpls-hero__visual {
    right: -150px;
    opacity: 0.44;
  }
  .mpls-feature-card,
  .mpls-choice-card,
  .mpls-scene-card__body {
    padding: 22px 18px;
  }
  .mpls-case-card {
    min-height: 400px;
  }
  .mpls-case-card__content {
    padding: 24px 20px;
  }
  .mpls-case-slider {
    padding: 20px 16px;
  }
  .mpls-case-slider__button {
    width: 36px;
    height: 36px;
  }
  .mpls-product-carousel__arrow {
    display: none;
  }
}