/* 官网方案页 · 对齐即构真实尺寸（内容宽 1440 / Hero 840 / 场景图 704×501） */
:root {
  --sol-ink: #28292e;
  --sol-muted: rgba(40, 41, 46, 0.7);
  --sol-blue: #0055ff;
  --sol-tab: #6a10c1;
  --sol-font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --sol-hero-live: linear-gradient(309deg, #f48df6, #ad45ff 22%, #4527ec 80%);
  --sol-hero-ai: linear-gradient(320deg, #ffb5c3 9%, #ff65c2 45%, #db44ed 63%, #2439f5 96%);
  --sol-title-grad: linear-gradient(42deg, #5648f3, #b13afa 63%, #ff61b6);
  --sol-max: 1440px;
}

.bce-body--sol .bce-main,
.bce-body--sol main.bce-main-minimal,
.bce-body--sol main {
  max-width: none !important;
  width: 100% !important;
  padding: 0 !important;
  margin: 0 !important;
}

.sol-page {
  font-family: var(--sol-font);
  color: var(--sol-ink);
  background: #fff;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

.sol-wrap {
  width: min(var(--sol-max), calc(100% - 40px));
  margin: 0 auto;
}

/* —— Hero：840 高，右侧图 1044×840 —— */
.sol-hero {
  position: relative;
  height: 840px;
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}
.sol-hero--live { background: var(--sol-hero-live); }
.sol-hero--ai { background: var(--sol-hero-ai); }
.sol-hero__inner {
  position: relative;
  z-index: 2;
  width: min(var(--sol-max), calc(100% - 40px));
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  padding-top: 24px;
  box-sizing: border-box;
}
.sol-hero__copy {
  position: relative;
  z-index: 3;
  width: min(487px, 42%);
  max-width: 487px;
  padding-right: 12px;
  animation: sol-fade-up 0.9s ease both;
}
.sol-hero__title {
  margin: 0 0 20px;
  font-size: 56px;
  font-weight: 700;
  line-height: 1.18;
}
.sol-hero__desc {
  margin: 0 0 32px;
  font-size: 16px;
  line-height: 1.85;
  opacity: 0.94;
}
.sol-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
/* 单图 Banner：相对内容右缘略收，再整体右移 200px，避免挤字 */
.sol-hero__visual {
  position: absolute;
  top: 0;
  right: max(0px, calc((100% - var(--sol-max)) / 2 + 28px));
  z-index: 1;
  width: min(1044px, 54vw);
  height: 840px;
  pointer-events: none;
  transform: translate3d(200px, var(--sol-parallax, 0px), 0);
  will-change: transform;
}
.sol-page--ai .sol-hero__visual {
  right: max(0px, calc((100% - var(--sol-max)) / 2 + 36px));
  width: min(1044px, 54vw);
}
.sol-hero__banner {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: right center;
  display: block;
  animation: sol-float-y 5.5s ease-in-out infinite;
  will-change: transform;
}
.sol-hero__actions .sol-btn {
  animation: sol-fade-up 0.9s ease both;
}
.sol-hero__actions .sol-btn:nth-child(1) { animation-delay: 0.12s; }
.sol-hero__actions .sol-btn:nth-child(2) { animation-delay: 0.22s; }

.sol-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease;
}
.sol-btn:hover { transform: translateY(-1px); }
.sol-btn--light {
  background: #fff;
  color: #5b1ad8;
  box-shadow: 0 8px 20px rgba(40, 10, 100, 0.16);
}
.sol-btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.75);
}
.sol-btn--primary { background: var(--sol-blue); color: #fff; }
.sol-btn--dark { background: #1f2330; color: #fff; }

/* —— Demo：1440 / 379 + 708×570 —— */
.sol-demo {
  padding: 80px 0 60px;
  background: #f6f7fb;
}
.sol-demo__container {
  width: min(var(--sol-max), calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.sol-demo__card {
  position: relative;
  width: 708px;
  height: 570px;
  border-radius: 20px;
  background-color: #efe8ff;
  background-size: cover;
  background-position: center right;
  background-repeat: no-repeat;
  overflow: hidden;
  box-sizing: border-box;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.sol-demo__card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 48px rgba(70, 30, 140, 0.16);
}
.sol-demo__card--wide {
  width: 100%;
  height: 379px;
  background-position: right center;
}
.sol-demo__content {
  position: relative;
  z-index: 1;
  width: 420px;
  padding: 48px 24px 0 56px;
  color: var(--sol-ink);
  box-sizing: border-box;
}
.sol-demo__card--wide .sol-demo__content {
  width: 640px;
  max-width: 52%;
  padding: 44px 32px 0 72px;
}
.sol-demo__card--stack {
  background-position: center bottom;
  display: flex;
  flex-direction: column;
}
.sol-demo__card--stack .sol-demo__content {
  width: 100%;
  max-width: none;
  padding: 40px 40px 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.55) 70%, transparent 100%);
}
.sol-demo__content h3 {
  margin: 0 0 22px;
  font-size: 36px;
  font-weight: 600;
  line-height: 1.25;
  background: var(--sol-title-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
.sol-demo__content ul,
.sol-demo__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}
.sol-demo__list--grid {
  grid-template-columns: 1fr 1fr;
  column-gap: 28px;
  row-gap: 18px;
}
.sol-demo__list--grid li:last-child {
  grid-column: 1 / -1;
}
.sol-demo__list--row {
  grid-template-columns: 1fr;
  gap: 14px;
}
.sol-demo__content li { display: grid; gap: 4px; }
.sol-demo__content strong {
  font-size: 17px;
  font-weight: 600;
  color: var(--sol-ink);
  -webkit-text-fill-color: var(--sol-ink);
}
.sol-demo__content span {
  font-size: 14px;
  line-height: 1.55;
  color: var(--sol-muted);
  -webkit-text-fill-color: var(--sol-muted);
}

/* —— Sections —— */
.sol-sec { padding: 100px 0; }
.sol-sec--safe { background: #faf4ff; }
.sol-sec--arch { padding-top: 48px; }
.sol-head {
  text-align: center;
  margin: 0 0 56px;
}
.sol-head h2 {
  margin: 0 0 14px;
  font-size: 40px;
  font-weight: 600;
  line-height: 1.3;
}
.sol-head p {
  margin: 0 auto;
  max-width: 40em;
  color: var(--sol-muted);
  font-size: 16px;
  line-height: 1.7;
}
.sol-head--light h2,
.sol-head--light p { color: #fff; }
.sol-head__grad {
  background: var(--sol-title-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sol-icons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px 40px;
}
.sol-icon { text-align: center; padding: 12px; }
.sol-icon img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin: 0 auto 20px;
  display: block;
}
.sol-icon h3 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 600;
}
.sol-icon p {
  margin: 0 auto;
  max-width: 16em;
  color: var(--sol-muted);
  font-size: 15px;
  line-height: 1.6;
}

/* —— Scenes：1440×501 面板，右图 704×501 —— */
.sol-scenes {
  padding: 100px 0 110px;
  background-color: #1a0b3d;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 2880px 910px;
  color: #fff;
}
.sol-scenes--ai {
  background-size: cover;
}
.sol-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin: 0 0 40px;
}
.sol-tabs__btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-radius: 999px;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.sol-tabs__btn.is-active,
.sol-tabs__btn:hover {
  background: #fff;
  color: var(--sol-tab);
  border-color: #fff;
}

.sol-panel {
  display: none;
  width: 100%;
  max-width: 1440px;
  height: 501px;
  margin: 0 auto;
  box-sizing: border-box;
  grid-template-columns: minmax(280px, 1fr) 704px;
  gap: 24px;
  align-items: center;
  padding: 0 40px 0 64px;
  border-radius: 20px;
  /* swiper-item-bg 是浅色底图，面板内必须用深色字 */
  color: var(--sol-ink);
  background-color: #fff;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  overflow: hidden;
  box-shadow: 0 20px 48px rgba(40, 16, 90, 0.18);
}
.sol-panel.is-active,
.sol-panel:not([hidden]) {
  display: grid;
  animation: sol-panel-in 0.55s ease both;
}
.sol-panel[hidden] { display: none !important; }

.sol-panel__copy {
  color: var(--sol-ink);
  max-width: 560px;
}
.sol-panel__copy h3 {
  margin: 0 0 16px;
  font-size: 36px;
  font-weight: 700;
  width: fit-content;
  background: linear-gradient(216.9deg, #ff52e2 1%, #b140ff 51%, #7344f9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
.sol-panel__copy p {
  margin: 0 0 24px;
  max-width: 520px;
  line-height: 1.8;
  font-size: 16px;
  color: rgba(40, 41, 46, 0.78);
  opacity: 1;
  -webkit-text-fill-color: rgba(40, 41, 46, 0.78);
}
.sol-panel__copy ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.sol-panel__copy li {
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(106, 16, 193, 0.1);
  color: #6a10c1;
  font-size: 14px;
  font-weight: 600;
  -webkit-text-fill-color: #6a10c1;
}
.sol-panel__media {
  width: 704px;
  height: 501px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.sol-panel__media img {
  width: 704px;
  height: 501px;
  object-fit: contain;
  display: block;
  animation: sol-float-y 6s ease-in-out infinite;
  will-change: transform;
}

/* —— AI 三卡：底图 + 中部说明，填满中间留白 —— */
.sol-art3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.sol-art3__item {
  margin: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  border-radius: 20px;
  overflow: hidden;
  background-color: #f6f0ff;
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  aspect-ratio: 686 / 948;
  min-height: 520px;
  box-shadow: 0 16px 40px rgba(70, 30, 140, 0.1);
  padding: 26% 24px 0;
  box-sizing: border-box;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.sol-art3__item:hover {
  transform: translateY(-10px);
  box-shadow: 0 28px 56px rgba(70, 30, 140, 0.18);
}
.sol-art3__mid {
  position: relative;
  z-index: 2;
  padding: 18px 20px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(40, 20, 80, 0.08);
}
.sol-art3__mid p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(40, 41, 46, 0.82);
  font-weight: 500;
}

/* —— Avatars：单卡约 256 宽 —— */
.sol-avatars {
  padding: 90px 0 110px;
  background: linear-gradient(180deg, #fff 0%, #faf6ff 55%, #fff 100%);
}
.sol-avatar-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 28px;
  margin-bottom: 36px;
}
.sol-avatar { margin: 0; text-align: center; }
.sol-avatar__frame {
  position: relative;
  width: 100%;
  max-width: 256px;
  margin: 0 auto 16px;
  aspect-ratio: 456 / 566;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(160deg, #2a2148, #12101c);
  box-shadow: 0 18px 36px rgba(40, 20, 80, 0.18);
}
.sol-avatar__face {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.sol-avatar__badge {
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 44px;
  height: 44px;
}
.sol-avatar figcaption { display: grid; gap: 6px; }
.sol-avatar figcaption strong {
  font-size: 18px;
  font-weight: 700;
}
.sol-avatar figcaption span {
  font-size: 13px;
  color: var(--sol-muted);
}
.sol-voice-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.sol-voice-pills span {
  padding: 12px 22px;
  border-radius: 999px;
  background: linear-gradient(90deg, #f3e8ff, #ffe8f5);
  color: #6a10c1;
  font-size: 15px;
  font-weight: 650;
}

/* —— Advanced —— */
.sol-adv {
  padding: 100px 0;
  background: linear-gradient(180deg, #f7f4ff, #fff);
}
.sol-adv__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.sol-adv__item {
  margin: 0;
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 14px 32px rgba(40, 20, 90, 0.08);
  border: 1px solid rgba(90, 40, 160, 0.06);
  display: flex;
  flex-direction: column;
}
.sol-adv__art {
  background: #0b0b0f;
  aspect-ratio: 1008 / 560;
  overflow: hidden;
}
.sol-adv__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.sol-adv__text { padding: 22px 22px 26px; }
.sol-adv__text h3 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 700;
}
.sol-adv__text p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sol-muted);
}

.sol-arch-box {
  display: flex;
  justify-content: center;
  width: 100%;
}

/* —— 方案架构：真实文字思维导图（速推品牌） —— */
.sol-arch-map {
  display: grid;
  grid-template-columns:
    minmax(150px, 0.9fr)
    minmax(150px, 0.95fr)
    minmax(88px, 0.55fr)
    minmax(150px, 0.95fr)
    minmax(88px, 0.55fr)
    minmax(190px, 1.1fr)
    minmax(88px, 0.55fr)
    minmax(170px, 1fr);
  gap: 14px;
  align-items: stretch;
  width: 100%;
  padding: 36px 28px;
  border-radius: 24px;
  background:
    radial-gradient(720px 280px at 12% 20%, rgba(59, 130, 246, 0.08), transparent 60%),
    radial-gradient(640px 260px at 88% 80%, rgba(177, 58, 250, 0.08), transparent 55%),
    #fff;
  border: 1px solid rgba(90, 40, 160, 0.08);
  box-shadow: 0 20px 48px rgba(40, 20, 90, 0.08);
  box-sizing: border-box;
  overflow: auto;
}

.sol-arch-map__users {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
}
.sol-arch-map__user {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: #1e293b;
  line-height: 1.45;
}
.sol-arch-map__user-ico {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(145deg, #60a5fa, #2563eb);
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.28);
}

.sol-arch-map__card {
  display: flex;
  flex-direction: column;
  border-radius: 18px;
  border: 1px solid #bfdbfe;
  background: linear-gradient(180deg, #eff6ff 0%, #f8fbff 100%);
  overflow: hidden;
  min-height: 360px;
}
.sol-arch-map__card--agent {
  border-color: #e9d5ff;
  background: linear-gradient(180deg, #faf5ff 0%, #fff 100%);
}
.sol-arch-map__card-hd {
  margin: 0;
  padding: 14px 16px;
  text-align: center;
  font-size: 18px;
  font-weight: 750;
  color: #1d4ed8;
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid rgba(37, 99, 235, 0.12);
}
.sol-arch-map__card-hd--grad {
  color: #fff;
  background: linear-gradient(105deg, #7c3aed, #db2777 58%, #ec4899);
  border-bottom: 0;
  font-size: 15px;
  letter-spacing: 0.02em;
}
.sol-arch-map__stack {
  flex: 1;
  display: grid;
  gap: 16px;
  padding: 22px 16px 12px;
  align-content: center;
}
.sol-arch-map__kit {
  display: grid;
  gap: 6px;
  place-items: center;
  padding: 22px 12px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid #dbeafe;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.06);
}
.sol-arch-map__kit strong {
  font-size: 15px;
  color: #0f172a;
}
.sol-arch-map__kit span {
  font-size: 12px;
  color: #64748b;
  font-weight: 600;
}
.sol-arch-map__note {
  margin: 0;
  padding: 12px 14px 16px;
  text-align: center;
  font-size: 12px;
  font-weight: 650;
  color: #334155;
}

.sol-arch-map__mods {
  list-style: none;
  margin: 0;
  padding: 14px 14px 18px;
  display: grid;
  gap: 8px;
  flex: 1;
}
.sol-arch-map__mods li {
  padding: 10px 12px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid #edd9ff;
  text-align: center;
  font-size: 13px;
  font-weight: 650;
  color: #3b0764;
}

.sol-arch-map__msdn {
  align-self: center;
  display: grid;
  justify-items: center;
  gap: 8px;
  padding: 22px 14px;
  border-radius: 20px;
  background: linear-gradient(180deg, #eff6ff, #dbeafe);
  border: 1px solid #93c5fd;
  box-shadow: 0 14px 32px rgba(37, 99, 235, 0.14);
  text-align: center;
  min-height: 180px;
  align-content: center;
}
.sol-arch-map__msdn strong {
  font-size: 14px;
  line-height: 1.5;
  color: #1e3a8a;
}
.sol-arch-map__msdn em {
  font-style: normal;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #1d4ed8;
}

.sol-arch-map__links {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  min-width: 0;
  position: relative;
}
.sol-arch-map__links::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 12%;
  bottom: 12%;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, rgba(37, 99, 235, 0.25), transparent);
  pointer-events: none;
}
.sol-arch-map__link {
  display: block;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.35;
  padding: 7px 6px;
  text-align: center;
  border-radius: 999px;
  white-space: normal;
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
}
.sol-arch-map__link::before,
.sol-arch-map__link::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 14px;
  height: 2px;
  transform: translateY(-50%);
  background: currentColor;
  opacity: 0.45;
}
.sol-arch-map__link::before { left: -12px; }
.sol-arch-map__link::after { right: -12px; }
.sol-arch-map__link--blue {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.08);
}
.sol-arch-map__link--cyan {
  color: #0891b2;
  background: rgba(8, 145, 178, 0.1);
}
.sol-arch-map__link--gray {
  color: #64748b;
  background: rgba(100, 116, 139, 0.1);
}

.sol-arch-map__right {
  display: grid;
  gap: 10px;
  align-content: center;
}
.sol-arch-map__group {
  border-radius: 14px;
  border: 1px dashed #93c5fd;
  background: #f8fbff;
  overflow: hidden;
}
.sol-arch-map__group--paas {
  border-color: #f0abfc;
  background: linear-gradient(180deg, #fdf4ff, #fff);
}
.sol-arch-map__group header {
  padding: 10px 12px;
  text-align: center;
  font-size: 13px;
  font-weight: 750;
  color: #1d4ed8;
  background: rgba(255, 255, 255, 0.8);
  border-bottom: 1px solid rgba(37, 99, 235, 0.1);
}
.sol-arch-map__group--paas header {
  color: #fff;
  background: linear-gradient(105deg, #7c3aed, #db2777);
  border-bottom: 0;
}
.sol-arch-map__group ul {
  list-style: none;
  margin: 0;
  padding: 10px;
  display: grid;
  gap: 8px;
}
.sol-arch-map__group li {
  padding: 9px 10px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid #e2e8f0;
  text-align: center;
  font-size: 12px;
  font-weight: 650;
  color: #334155;
}
.sol-arch-map__group-flow {
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  letter-spacing: 0.02em;
}

@media (max-width: 1280px) {
  .sol-arch-map {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }
  .sol-arch-map__users { grid-column: 1 / -1; flex-direction: row; flex-wrap: wrap; }
  .sol-arch-map__user { min-width: 220px; flex: 1; }
  .sol-arch-map__links { display: none; }
  .sol-arch-map__msdn { grid-column: 1 / -1; }
  .sol-arch-map__right { grid-column: 1 / -1; grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .sol-arch-map__group-flow { display: none; }
  .sol-arch-map__card { min-height: 0; }
}

@media (max-width: 720px) {
  .sol-arch-map {
    grid-template-columns: 1fr;
    padding: 22px 16px;
  }
  .sol-arch-map__right { grid-template-columns: 1fr; }
  .sol-arch-map__users { flex-direction: column; }
}

.sol-cta {
  padding: 56px 0 110px;
  background: #fff;
}
.sol-cta__box {
  text-align: center;
  padding: 56px 32px;
  border-radius: 24px;
  background: linear-gradient(180deg, #faf7ff, #fff);
  border: 1px solid rgba(90, 40, 160, 0.08);
}
.sol-cta__box h2 {
  margin: 0 0 14px;
  font-size: 36px;
}
.sol-cta__box p {
  margin: 0 0 28px;
  color: var(--sol-muted);
  font-size: 16px;
}
.sol-cta__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

.sol-reveal {
  opacity: 0;
  transform: translateY(40px) scale(0.98);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.sol-reveal.is-in {
  opacity: 1;
  transform: none;
}
.sol-reveal.is-in:nth-child(2) { transition-delay: 0.08s; }
.sol-reveal.is-in:nth-child(3) { transition-delay: 0.16s; }
.sol-reveal.is-in:nth-child(4) { transition-delay: 0.24s; }
.sol-reveal.is-in:nth-child(5) { transition-delay: 0.32s; }

.sol-icon {
  transition: transform 0.3s ease;
}
.sol-icon:hover { transform: translateY(-6px); }
.sol-icon img {
  transition: transform 0.45s ease;
}
.sol-icon:hover img { transform: scale(1.06); }

.sol-avatar__frame {
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.sol-avatar:hover .sol-avatar__frame {
  transform: translateY(-10px);
  box-shadow: 0 28px 48px rgba(40, 20, 80, 0.28);
}
.sol-avatar__face {
  animation: sol-float-soft 7s ease-in-out infinite;
}
.sol-avatar:nth-child(2) .sol-avatar__face { animation-delay: 0.6s; }
.sol-avatar:nth-child(3) .sol-avatar__face { animation-delay: 1.2s; }
.sol-avatar:nth-child(4) .sol-avatar__face { animation-delay: 1.8s; }
.sol-avatar:nth-child(5) .sol-avatar__face { animation-delay: 2.4s; }

.sol-adv__item {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.sol-adv__item:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 36px rgba(70, 30, 140, 0.12);
}

.sol-tabs__btn {
  position: relative;
}
.sol-tabs__btn.is-active {
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.22);
}

@keyframes sol-float-y {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -14px, 0); }
}
@keyframes sol-float-soft {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(0, -8px, 0) scale(1.02); }
}
@keyframes sol-fade-up {
  from { opacity: 0; transform: translate3d(0, 28px, 0); }
  to { opacity: 1; transform: none; }
}
@keyframes sol-panel-in {
  from { opacity: 0; transform: translate3d(24px, 0, 0); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .sol-hero__banner,
  .sol-panel__media img,
  .sol-avatar__face,
  .sol-hero__copy,
  .sol-hero__actions .sol-btn {
    animation: none !important;
  }
  .sol-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* —— 大屏以下按 1440 设计等比缩放 —— */
@media (max-width: 1500px) {
  .sol-demo__container {
    width: min(1440px, calc(100% - 40px));
  }
  .sol-demo__card {
    width: calc((100% - 24px) / 2);
    height: auto;
    aspect-ratio: 708 / 570;
  }
  .sol-demo__card--wide {
    width: 100%;
    height: auto;
    aspect-ratio: 1440 / 379;
  }
}

@media (max-width: 1280px) {
  .sol-hero { height: auto; min-height: 640px; }
  .sol-hero__inner {
    display: grid;
    grid-template-columns: 1fr;
    align-content: center;
    padding: 100px 0 40px;
    height: auto;
  }
  .sol-hero__copy {
    width: min(560px, 100%);
    max-width: none;
  }
  .sol-hero__title { font-size: 42px; }
  .sol-hero__visual {
    position: relative;
    right: auto;
    left: auto;
    width: min(720px, 92%);
    height: auto;
    margin: 12px auto 0;
    transform: none;
  }
  .sol-page--ai .sol-hero__visual {
    right: auto;
    width: min(720px, 92%);
  }
  .sol-hero__banner {
    height: auto;
    max-height: none;
    object-position: center;
  }
  .sol-panel {
    height: auto;
    min-height: 420px;
    grid-template-columns: 1fr;
    padding: 36px 28px;
  }
  .sol-panel__media,
  .sol-panel__media img {
    width: min(704px, 100%);
    height: auto;
    max-height: none;
  }
  .sol-demo__content,
  .sol-demo__card--wide .sol-demo__content {
    width: min(56%, 520px);
    max-width: none;
    padding: 36px 28px;
  }
  .sol-demo__card--stack .sol-demo__content {
    width: 100%;
  }
  .sol-demo__list--grid {
    grid-template-columns: 1fr;
  }
  .sol-demo__content h3 { font-size: 28px; }
  .sol-panel__copy { max-width: none; }
}

@media (max-width: 980px) {
  .sol-art3,
  .sol-adv__grid { grid-template-columns: 1fr; }
  .sol-demo__card,
  .sol-demo__card--wide {
    width: 100%;
    aspect-ratio: auto;
    min-height: 360px;
  }
  .sol-demo__content,
  .sol-demo__card--wide .sol-demo__content {
    width: min(70%, 480px);
    background: linear-gradient(90deg, rgba(255,255,255,0.92), rgba(255,255,255,0.4) 80%, transparent);
  }
  .sol-demo__card--stack .sol-demo__content {
    width: 100%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.5) 75%, transparent 100%);
  }
  .sol-art3__item {
    aspect-ratio: auto;
    min-height: 480px;
    padding-top: 120px;
  }
  .sol-icons { grid-template-columns: repeat(2, 1fr); }
  .sol-avatar-row { grid-template-columns: repeat(3, 1fr); }
  .sol-head h2 { font-size: 32px; }
  .sol-scenes { background-size: cover; }
}

@media (max-width: 640px) {
  .sol-hero__title { font-size: 32px; }
  .sol-avatar-row { grid-template-columns: repeat(2, 1fr); }
  .sol-demo__content,
  .sol-demo__card--wide .sol-demo__content {
    width: 100%;
    background: rgba(255, 255, 255, 0.92);
  }
  .sol-icon img { width: 88px; height: 88px; }
}