:root {
  --zb-navy: #121f43;
  --zb-ink: #14213f;
  --zb-text: #475063;
  --zb-muted: #6e7685;
  --zb-soft: #f3f5f8;
  --zb-orange: #ff781d;
  --zb-green: #56bf6f;
  --zb-blue: #5d8df7;
  --zb-purple: #8d64d8;
  --zb-shadow: 0 16px 36px rgba(20, 38, 70, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--zb-text);
  font-family: "Source Han Sans SC Local", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background: #fff;
  line-height: 1.72;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
.zb-wrap { width: min(1440px, calc(100% - 96px)); margin: 0 auto; }
.zb-icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}
.zb-svg {
  display: block;
  width: .72em;
  height: .72em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.15;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.zb-hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 76% 72%, rgba(135, 73, 255, .58), transparent 28%),
    radial-gradient(circle at 92% 20%, rgba(86, 119, 255, .28), transparent 22%),
    linear-gradient(128deg, #162541 0%, #17234b 52%, #263472 100%);
}
.zb-hero::before {
  content: "";
  position: absolute;
  inset: auto -12% -120px 48%;
  height: 380px;
  border: 5px solid rgba(143, 78, 255, .5);
  border-radius: 50%;
  filter: blur(.2px);
  transform: rotate(-8deg);
}
.zb-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(560px, .88fr);
  gap: 42px;
  align-items: center;
  min-height: 880px;
  padding: 72px 0 74px;
}
.zb-pill {
  display: inline-flex;
  align-items: center;
  min-height: 60px;
  padding: 0 38px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff9c50, #ff7620);
  font-size: 27px;
  font-weight: 900;
}
.zb-hero h1 {
  margin: 58px 0 36px;
  color: #fff;
  font-size: clamp(48px, 4.2vw, 78px);
  line-height: 1.28;
  font-weight: 900;
  letter-spacing: 0;
}
.zb-hero__copy p {
  max-width: 760px;
  margin: 0 0 52px;
  color: rgba(255,255,255,.78);
  font-size: clamp(23px, 2vw, 33px);
  font-weight: 700;
}
.zb-hero__actions { display: flex; flex-wrap: wrap; gap: 24px; }
.zb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 310px;
  min-height: 86px;
  padding: 0 30px;
  border-radius: 999px;
  font-size: 25px;
  font-weight: 900;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.zb-btn:hover { transform: translateY(-3px); }
.zb-btn--primary { background: linear-gradient(135deg, #ff8d21, #ff6714); box-shadow: 0 18px 34px rgba(255, 108, 19, .28); }
.zb-btn--outline { border: 2px solid rgba(255,255,255,.9); background: rgba(255,255,255,.03); }
.zb-hero__visual {
  position: relative;
  min-width: 0;
}
.zb-hero-mock {
  position: relative;
  width: min(760px, 100%);
  margin-left: auto;
  padding: 20px 18px 56px;
  filter: drop-shadow(0 28px 32px rgba(0,0,0,.3));
  animation: zb-floaty 5.6s ease-in-out infinite;
}
.zb-hero-mock__panel {
  overflow: hidden;
  border-radius: 26px;
  background: linear-gradient(180deg, #f6f8fc, #ffffff);
  box-shadow: inset 0 0 0 1px rgba(17, 28, 56, .06);
}
.zb-hero-mock__top {
  display: flex;
  justify-content: space-between;
  padding: 20px 24px;
  color: #5d687b;
  font-size: 18px;
  font-weight: 900;
}
.zb-hero-mock__layout {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  min-height: 520px;
}
.zb-hero-mock__side {
  display: grid;
  gap: 12px;
  padding: 24px 16px;
  background: #182747;
}
.zb-hero-mock__side b {
  display: block;
  padding: 14px 12px;
  border-radius: 12px;
  color: rgba(255,255,255,.7);
  font-size: 15px;
  font-weight: 800;
}
.zb-hero-mock__side b.is-active {
  color: #fff;
  background: #3b78f5;
}
.zb-hero-mock__main {
  display: grid;
  gap: 20px;
  padding: 24px;
}
.zb-hero-mock__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.zb-hero-mock__cards div,
.zb-hero-mock__window,
.zb-hero-mock__phone,
.zb-hero-mock__floating {
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 14px 28px rgba(20, 38, 70, .12);
}
.zb-hero-mock__cards div {
  padding: 18px;
}
.zb-hero-mock__cards span,
.zb-hero-mock__window-head span,
.zb-hero-mock__phone span,
.zb-hero-mock__floating span {
  display: block;
  color: #7a8392;
  font-size: 14px;
  font-weight: 800;
}
.zb-hero-mock__cards strong,
.zb-hero-mock__phone strong,
.zb-hero-mock__floating strong {
  display: block;
  color: #18233a;
  font-size: 28px;
  line-height: 1.1;
}
.zb-hero-mock__showcase {
  display: grid;
  grid-template-columns: 1fr 160px;
  gap: 18px;
  align-items: end;
}
.zb-hero-mock__window {
  padding: 20px;
  min-height: 244px;
}
.zb-hero-mock__window-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 18px;
}
.zb-hero-mock__window-head strong { color: #1f2b43; font-size: 24px; }
.zb-hero-mock__timeline {
  display: flex;
  align-items: end;
  gap: 12px;
  height: 170px;
  border-bottom: 1px solid #e6ebf2;
}
.zb-hero-mock__timeline i {
  flex: 1;
  border-radius: 999px 999px 4px 4px;
  background: linear-gradient(180deg, #9cc2ff, #3878f5);
}
.zb-hero-mock__timeline i:nth-child(1) { height: 74px; }
.zb-hero-mock__timeline i:nth-child(2) { height: 120px; }
.zb-hero-mock__timeline i:nth-child(3) { height: 88px; }
.zb-hero-mock__timeline i:nth-child(4) { height: 136px; }
.zb-hero-mock__timeline i:nth-child(5) { height: 104px; }
.zb-hero-mock__phone {
  align-self: stretch;
  padding: 18px;
  background: linear-gradient(180deg, #edf4ff, #ffffff);
}
.zb-hero-mock__phone b {
  display: block;
  margin-top: 86px;
  color: #3878f5;
  font-size: 28px;
  font-weight: 900;
}
.zb-hero-mock__floating {
  position: absolute;
  right: 10px;
  width: 184px;
  padding: 18px 20px;
}
.zb-hero-mock__floating--orange { top: 142px; color: var(--zb-orange); }
.zb-hero-mock__floating--green { top: 258px; color: var(--zb-green); }
.zb-hero-mock__floating--blue { top: 394px; color: var(--zb-blue); }
.zb-hero-mock__floating span { margin-top: 6px; color: #4c5768; font-size: 18px; }

.zb-feature__media--mock { min-width: 0; }
.zb-mini-card,
.zb-phone-mini,
.zb-chat-mini,
.zb-data-mini {
  position: relative;
  overflow: hidden;
}
.zb-mini-card--course {
  display: grid;
  gap: 18px;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.98)),
    linear-gradient(135deg, #fff2e9, #fff);
}
.zb-mini-card__head,
.zb-data-mini__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #6d7684;
  font-size: 18px;
  font-weight: 800;
}
.zb-mini-card__cover {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 10px;
}
.zb-mini-card__cover i {
  display: block;
  height: 110px;
  border-radius: 18px;
  background: linear-gradient(180deg, #ffd2a6, #ff8a22);
}
.zb-mini-card__cover i:nth-child(2) { height: 142px; }
.zb-mini-card__cover i:nth-child(3) { height: 118px; }
.zb-mini-card__meta {
  display: flex;
  align-items: end;
  justify-content: space-between;
}
.zb-mini-card__meta span { color: #5b6473; font-size: 22px; font-weight: 800; }
.zb-mini-card__meta b { color: var(--zb-orange); font-size: 32px; }
.zb-phone-mini--shop { min-height: 235px; padding: 18px; background: linear-gradient(135deg, #25334f, #1a2235); }
.zb-phone-mini__screen {
  display: grid;
  gap: 16px;
  min-height: 100%;
  padding: 22px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(255,255,255,.92));
}
.zb-phone-mini__screen span {
  display: inline-flex;
  width: fit-content;
  padding: 6px 14px;
  border-radius: 999px;
  color: #fff;
  background: var(--zb-green);
  font-weight: 900;
}
.zb-phone-mini__screen strong { color: #1e2b42; font-size: 28px; }
.zb-phone-mini__screen b { color: #ff8a22; font-size: 30px; font-weight: 900; }
.zb-phone-mini__goods {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: auto;
}
.zb-phone-mini__goods i {
  display: block;
  height: 88px;
  border-radius: 16px;
  background: linear-gradient(180deg, #d2efe0, #87d2a3);
}
.zb-chat-mini--group { padding: 24px; background: linear-gradient(135deg, #ff6d54, #ffb55a); }
.zb-chat-mini__notes {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 14px 0 20px;
}
.zb-chat-mini__notes i {
  padding: 8px 14px;
  border-radius: 999px;
  color: #ff6e29;
  background: rgba(255,255,255,.94);
  font-style: normal;
  font-weight: 900;
}
.zb-chat-mini--group span,
.zb-chat-mini--group p { color: #fff; }
.zb-chat-mini--group p { margin: 18px 0 0; font-size: 38px; font-weight: 900; }
.zb-chat-mini--group button { margin: 0 auto; padding: 10px 28px; border: 0; border-radius: 999px; color: #ff6731; background: #fff; font-weight: 900; }
.zb-data-mini--board { display: grid; gap: 16px; padding: 22px; background: linear-gradient(180deg, #f3f8ff, #fff); }
.zb-data-mini__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.zb-data-mini__stats div {
  padding: 14px 12px;
  border-radius: 16px;
  background: #fff;
  box-shadow: inset 0 0 0 1px #e7ecf5;
}
.zb-data-mini__stats strong,
.zb-data-mini__chart i {
  display: block;
}
.zb-data-mini__stats strong { color: var(--zb-ink); font-size: 28px; }
.zb-data-mini__chart {
  display: flex;
  align-items: end;
  gap: 10px;
  min-height: 124px;
  padding-top: 8px;
  border-bottom: 1px solid #e4e9f2;
}
.zb-data-mini__chart i {
  flex: 1;
  border-radius: 999px 999px 4px 4px;
  background: linear-gradient(180deg, #a9c6ff, #5d8df7);
}
.zb-data-mini__chart i:nth-child(1) { height: 52px; }
.zb-data-mini__chart i:nth-child(2) { height: 88px; }
.zb-data-mini__chart i:nth-child(3) { height: 70px; }
.zb-data-mini__chart i:nth-child(4) { height: 114px; }
.zb-data-mini__chart i:nth-child(5) { height: 84px; }

.zb-course-admin {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  min-height: 590px;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 18px 42px rgba(20, 38, 70, .16);
}
.zb-course-admin__sidebar {
  display: grid;
  align-content: start;
  gap: 14px;
  padding: 28px 20px;
  color: #677082;
  background: #f8fafc;
  font-size: 14px;
  font-weight: 800;
}
.zb-course-admin__sidebar b {
  color: #172338;
  font-size: 18px;
}
.zb-course-admin__sidebar span {
  padding: 10px 12px;
  border-radius: 8px;
}
.zb-course-admin__sidebar .is-active { color: #fff; background: #3878f5; }
.zb-course-admin__main {
  padding: 28px;
}
.zb-course-admin__top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 18px;
}
.zb-course-admin__top strong { color: #1f2b43; font-size: 28px; }
.zb-course-admin__top span { color: #8a93a3; font-weight: 800; }
.zb-course-admin__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}
.zb-course-admin__cards div,
.zb-course-admin__panel {
  border-radius: 16px;
  background: #fff;
  box-shadow: inset 0 0 0 1px #edf0f5;
}
.zb-course-admin__cards div { padding: 18px; }
.zb-course-admin__cards span,
.zb-course-admin__footer span { color: #7a8495; font-size: 14px; font-weight: 800; }
.zb-course-admin__cards strong { display: block; margin-top: 8px; color: #1f2b43; font-size: 28px; }
.zb-course-admin__panel { padding: 18px; }
.zb-course-admin__screen {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  min-height: 254px;
  padding: 14px 0 18px;
}
.zb-course-admin__screen i {
  border-radius: 18px;
  background: linear-gradient(180deg, #ffd2ab, #ff8a22);
}
.zb-course-admin__screen i:nth-child(2) { background: linear-gradient(180deg, #bcd5ff, #3878f5); }
.zb-course-admin__screen i:nth-child(3) { background: linear-gradient(180deg, #d5f1df, #56bf6f); }
.zb-course-admin__screen i:nth-child(4) { background: linear-gradient(180deg, #e4d5ff, #8d64d8); }
.zb-course-admin__footer { display: flex; justify-content: space-between; align-items: center; padding-top: 12px; }
.zb-course-admin__footer b { color: #ff8a22; font-size: 18px; }

.zb-shop-live {
  display: grid;
  gap: 18px;
  min-height: 900px;
}
.zb-shop-live__phone {
  display: grid;
  gap: 18px;
  padding: 18px;
  border-radius: 34px;
  background: #111827;
  box-shadow: 0 18px 42px rgba(20, 38, 70, .18);
}
.zb-shop-live__top {
  color: #fff;
  font-size: 18px;
  font-weight: 900;
}
.zb-shop-live__hero {
  display: grid;
  gap: 10px;
  padding: 24px;
  border-radius: 22px;
  background: linear-gradient(180deg, #f6fff8, #fff);
}
.zb-shop-live__hero strong { color: #172338; font-size: 32px; }
.zb-shop-live__hero span { color: #6e7785; font-weight: 800; }
.zb-shop-live__hero b { color: #ff8a22; font-size: 34px; font-weight: 900; }
.zb-shop-live__goods {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.zb-shop-live__goods i {
  display: block;
  min-height: 130px;
  border-radius: 18px;
  background: linear-gradient(180deg, #d7f1e0, #8cdbab);
}
.zb-shop-live__cart {
  display: flex;
  justify-content: space-between;
  padding: 18px 22px;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 12px 24px rgba(20, 38, 70, .12);
}
.zb-shop-live__cart strong { color: #ff8a22; font-size: 22px; }

.zb-engagement {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 20px;
  min-height: 685px;
}
.zb-engagement__phone {
  display: grid;
  gap: 18px;
  padding: 22px;
  border-radius: 30px;
  background: #171f31;
  box-shadow: 0 18px 42px rgba(20, 38, 70, .16);
}
.zb-engagement__banner {
  padding: 18px 20px;
  border-radius: 20px;
  color: #fff;
  background: linear-gradient(135deg, #8d64d8, #5d8df7);
  font-size: 28px;
  font-weight: 900;
}
.zb-engagement__list {
  display: grid;
  gap: 12px;
}
.zb-engagement__list div {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255,255,255,.96);
}
.zb-engagement__list strong { display: block; color: #172338; font-size: 24px; }
.zb-engagement__list span { color: #6d7785; font-size: 16px; font-weight: 800; }
.zb-engagement__panel {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 12px;
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(180deg, #ff9b4a, #ff6f2b);
  color: #fff;
}
.zb-engagement__panel strong { font-size: 28px; }
.zb-engagement__panel p { margin: 0; font-size: 22px; font-weight: 900; }

.zb-data-board {
  display: grid;
  gap: 20px;
  min-height: 673px;
  padding: 24px;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 18px 42px rgba(20, 38, 70, .16);
}
.zb-data-board__top {
  display: flex;
  justify-content: space-between;
  align-items: end;
}
.zb-data-board__top strong { color: #172338; font-size: 28px; }
.zb-data-board__top span { color: #7b8494; font-weight: 800; }
.zb-data-board__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.zb-data-board__cards div {
  padding: 18px;
  border-radius: 16px;
  background: #fff;
  box-shadow: inset 0 0 0 1px #edf0f5;
}
.zb-data-board__cards em,
.zb-data-board__foot span {
  color: #7c8595;
  font-style: normal;
  font-size: 14px;
  font-weight: 800;
}
.zb-data-board__cards strong {
  display: block;
  margin-top: 10px;
  color: #172338;
  font-size: 30px;
}
.zb-data-board__chart {
  display: flex;
  align-items: end;
  gap: 12px;
  min-height: 224px;
  border-bottom: 1px solid #e5eaf3;
}
.zb-data-board__chart i {
  flex: 1;
  border-radius: 999px 999px 4px 4px;
  background: linear-gradient(180deg, #a8c7ff, #5d8df7);
}
.zb-data-board__chart i:nth-child(1) { height: 118px; }
.zb-data-board__chart i:nth-child(2) { height: 164px; }
.zb-data-board__chart i:nth-child(3) { height: 132px; }
.zb-data-board__chart i:nth-child(4) { height: 190px; }
.zb-data-board__chart i:nth-child(5) { height: 146px; }
.zb-data-board__chart i:nth-child(6) { height: 176px; }
.zb-data-board__foot {
  display: flex;
  justify-content: space-between;
}
.zb-data-board__foot span { color: #5f6a7b; }
.zb-feature__media img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 18px 42px rgba(20, 38, 70, .16);
}
.zb-section { padding: 88px 0; }
.zb-section--soft { background: var(--zb-soft); }
.zb-head { max-width: 1120px; margin: 0 auto 58px; text-align: center; }
.zb-head h2 {
  margin: 0 0 18px;
  color: var(--zb-ink);
  font-size: clamp(36px, 3.5vw, 60px);
  line-height: 1.25;
  font-weight: 900;
}
.zb-head p {
  margin: 0;
  color: #737b8b;
  font-size: clamp(21px, 1.75vw, 29px);
  font-weight: 700;
}

.zb-problem-grid,
.zb-why-grid,
.zb-tech-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 34px;
}
.zb-problem,
.zb-tech,
.zb-why {
  border-radius: 10px;
  background: #fff;
  box-shadow: var(--zb-shadow);
  transition: transform .2s ease, box-shadow .2s ease;
}
.zb-problem:hover,
.zb-tech:hover,
.zb-why:hover,
.zb-scene:hover { transform: translateY(-6px); box-shadow: 0 22px 44px rgba(20, 38, 70, .16); }
.zb-problem {
  min-height: 350px;
  padding: 48px 48px 42px;
  border-top: 7px solid #ff5a50;
  text-align: center;
}
.zb-problem:nth-child(2) { border-top-color: var(--zb-orange); }
.zb-problem:nth-child(3) { border-top-color: #9da4af; }
.zb-icon {
  display: grid;
  place-items: center;
  width: 108px;
  height: 108px;
  margin: 0 auto 30px;
  border-radius: 50%;
  font-size: 54px;
  font-weight: 900;
}
.zb-icon .zb-svg { width: 58px; height: 58px; }
.zb-icon--red { color: #f04f47; background: #ffe9e7; }
.zb-icon--orange { color: var(--zb-orange); background: #fff0e4; }
.zb-icon--gray { color: #a1a7b0; background: #eef0f4; }
.zb-problem h3,
.zb-tech h3,
.zb-why h3 {
  margin: 0 0 18px;
  color: var(--zb-ink);
  font-size: clamp(26px, 2.2vw, 34px);
  line-height: 1.28;
  font-weight: 900;
}
.zb-problem p,
.zb-tech p,
.zb-why p {
  margin: 0;
  color: #606979;
  font-size: clamp(19px, 1.55vw, 25px);
  font-weight: 600;
}

.zb-pills {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 54px;
}
.zb-pills span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 76px;
  padding: 0 28px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 8px 22px rgba(20, 38, 70, .1);
  font-size: clamp(21px, 1.85vw, 30px);
  font-weight: 900;
}
.zb-pills .green { color: #2f9f58; border: 2px solid rgba(86, 191, 111, .18); }
.zb-pills .orange { color: var(--zb-orange); border: 2px solid rgba(255, 120, 29, .2); }
.zb-pills .blue { color: #4f72dc; border: 2px solid rgba(93, 141, 247, .25); }

.zb-scenes { padding-top: 34px; }
.zb-scene-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.zb-scene {
  display: grid;
  grid-template-columns: .9fr 1fr;
  align-items: center;
  gap: 20px;
  min-height: 270px;
  padding: 26px 30px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 10px 28px rgba(20, 38, 70, .1);
  transition: transform .2s ease, box-shadow .2s ease;
}
.zb-scene--warm { background: #fff2e8; }
.zb-scene--green { background: #edf8f0; }
.zb-scene--purple { background: #f4edff; }
.zb-scene--blue { background: #edf4ff; }
.zb-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 98px;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  color: #fff;
  font-size: 20px;
  font-weight: 900;
}
.zb-tag.orange { background: var(--zb-orange); }
.zb-tag.green { background: var(--zb-green); }
.zb-tag.purple { background: var(--zb-purple); }
.zb-tag.blue { background: var(--zb-blue); }
.zb-scene h3 {
  margin: 22px 0 16px;
  color: var(--zb-ink);
  font-size: clamp(28px, 2.45vw, 40px);
  line-height: 1.35;
  font-weight: 900;
}
.zb-scene p {
  margin: 0;
  color: #596273;
  font-size: clamp(17px, 1.42vw, 22px);
  font-weight: 650;
}
.zb-mini-card,
.zb-phone-mini,
.zb-chat-mini,
.zb-data-mini {
  border-radius: 18px;
  background: rgba(255,255,255,.86);
  box-shadow: 0 12px 24px rgba(20, 38, 70, .09);
}
.zb-mini-card { padding: 24px; }
.zb-mini-card strong,
.zb-mini-card span,
.zb-mini-card b { display: block; }
.zb-mini-card strong { color: var(--zb-ink); font-size: 22px; }
.zb-mini-card span { margin: 18px 0; color: #606979; font-size: 18px; }
.zb-mini-card b { color: var(--zb-orange); font-size: 28px; }
.zb-mini-card button,
.zb-chat-mini button {
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: var(--zb-orange);
  font-weight: 900;
}
.zb-mini-card button { margin-top: 16px; padding: 10px 20px; }
.zb-phone-mini {
  min-height: 235px;
  padding: 26px;
  color: #fff;
  background:
    linear-gradient(rgba(20, 20, 20, .28), rgba(20, 20, 20, .36)),
    url("assets/zhibo/shopping-live.jpg") center 18% / cover;
}
.zb-phone-mini span { display: inline-flex; padding: 5px 14px; border-radius: 999px; background: #ff4f4f; font-weight: 900; }
.zb-phone-mini strong { display: block; margin-top: 80px; font-size: 26px; }
.zb-phone-mini b { color: #e8ffe9; font-size: 28px; }
.zb-chat-mini {
  min-height: 235px;
  padding: 30px;
  background: radial-gradient(circle at 50% 42%, #ff674a, #ffb251);
  color: #fff;
  text-align: center;
}
.zb-chat-mini span { font-size: 25px; font-weight: 900; }
.zb-chat-mini p { margin: 28px 0 20px; color: #fff; font-size: 36px; font-weight: 900; }
.zb-chat-mini button { padding: 10px 28px; background: #fff; color: #ff6731; }
.zb-data-mini {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding: 24px;
}
.zb-data-mini strong { color: var(--zb-ink); font-size: 28px; }
.zb-data-mini span { color: #6a7382; font-weight: 800; }

.zb-feature { padding: 90px 0; }
.zb-feature--warm { background: #fff4ed; }
.zb-feature--blue { background: #eef5fb; }
.zb-feature__grid {
  display: grid;
  grid-template-columns: .48fr .52fr;
  gap: 64px;
  align-items: center;
}
.zb-feature__grid--reverse { grid-template-columns: .52fr .48fr; }
.zb-feature__copy h2 {
  margin: 26px 0 28px;
  color: var(--zb-ink);
  font-size: clamp(38px, 3.45vw, 60px);
  line-height: 1.42;
  font-weight: 900;
}
.zb-feature__copy p {
  margin: 0 0 42px;
  color: #565f70;
  font-size: clamp(21px, 1.75vw, 29px);
  font-weight: 600;
}
.zb-checks {
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: #1d2638;
  font-size: clamp(20px, 1.6vw, 27px);
  font-weight: 800;
}
.zb-checks li { position: relative; padding-left: 54px; }
.zb-checks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 4px;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: #fff;
  font-size: 22px;
  font-weight: 900;
}
.zb-checks.orange li::before { background: var(--zb-orange); }
.zb-checks.green li::before { background: var(--zb-green); }
.zb-checks.purple li::before { background: var(--zb-purple); }
.zb-checks.blue li::before { background: var(--zb-blue); }
.zb-feature__media img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 18px 42px rgba(20, 38, 70, .16);
}

.zb-compare {
  overflow: hidden;
  border: 2px solid #dedfe3;
  border-radius: 10px;
  box-shadow: 0 14px 28px rgba(20, 38, 70, .08);
}
.zb-compare__row {
  display: grid;
  grid-template-columns: 240px 1fr 1fr;
  min-height: 86px;
  border-bottom: 1px solid #dedfe3;
  background: #fff;
}
.zb-compare__row:last-child { border-bottom: 0; }
.zb-compare__row > * {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px 24px;
  text-align: center;
  font-size: clamp(20px, 1.75vw, 29px);
  font-style: normal;
  font-weight: 800;
}
.zb-compare__row span { justify-content: flex-start; color: var(--zb-ink); background: #f8f9fb; }
.zb-compare__row em { color: #334057; border-left: 1px solid #dedfe3; }
.zb-compare__row strong { color: var(--zb-orange); border-left: 1px solid #ffb27f; background: #fff4eb; }
.zb-compare__head span { background: #ddd; }
.zb-compare__head b { color: #fff; background: #c9c9c9; }
.zb-compare__head b:last-child { background: linear-gradient(135deg, #ff964f, #ff7624); }

.zb-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-bottom: 58px;
  text-align: center;
}
.zb-stats div {
  padding: 10px 24px;
  border-right: 1px solid #dce1e8;
}
.zb-stats div:last-child { border-right: 0; }
.zb-stats strong,
.zb-stats em {
  color: var(--zb-orange);
  font-size: clamp(54px, 5.2vw, 88px);
  line-height: 1;
  font-style: normal;
  font-weight: 900;
}
.zb-stats div:nth-child(2) strong,
.zb-stats div:nth-child(2) em { color: #34aa65; }
.zb-stats div:nth-child(3) strong,
.zb-stats div:nth-child(3) em { color: #2462c5; }
.zb-stats span {
  display: block;
  margin-top: 16px;
  color: var(--zb-ink);
  font-size: clamp(20px, 1.8vw, 30px);
  font-weight: 900;
}
.zb-tech { display: grid; grid-template-columns: 120px 1fr; gap: 12px 24px; align-items: center; min-height: 180px; padding: 34px; }
.zb-tech span {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  color: #fff;
  font-size: 48px;
  font-weight: 900;
}
.zb-tech span .zb-svg { width: 58px; height: 58px; }
.zb-tech .green { background: var(--zb-green); }
.zb-tech .orange { background: var(--zb-orange); }
.zb-tech .blue { background: var(--zb-blue); }

.zb-why-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.zb-why {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 8px 26px;
  min-height: 162px;
  padding: 30px 36px;
  text-align: left;
}
.zb-why span {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  color: #fff;
  background: var(--zb-orange);
  font-size: 42px;
  font-weight: 900;
}
.zb-why span .zb-svg { width: 46px; height: 46px; }
.zb-why:nth-child(2n) span { background: #7ecf83; }
.zb-why:nth-child(4n) span { background: var(--zb-blue); }
.zb-why:nth-child(6n) span { background: var(--zb-purple); }
.zb-slogan {
  position: relative;
  overflow: hidden;
  padding: 74px 0 86px;
  color: #fff;
  text-align: center;
  background:
    radial-gradient(circle at 16% 72%, rgba(117, 78, 255, .5), transparent 28%),
    radial-gradient(circle at 84% 24%, rgba(72, 124, 255, .5), transparent 24%),
    linear-gradient(135deg, #152454, #253a85);
}
.zb-slogan h2 {
  margin: 0;
  font-size: clamp(52px, 5.4vw, 92px);
  line-height: 1.18;
  font-weight: 900;
}

.zb-reveal { opacity: 1; transform: translateY(0); transition: opacity .55s ease, transform .55s ease; }
.js .zb-reveal { opacity: 1; transform: translateY(0); }
.js .zb-reveal.is-visible { opacity: 1; transform: translateY(0); }
.zb-float,
.zb-top {
  position: fixed;
  z-index: 20;
  right: 24px;
  border: 0;
  color: #fff;
  background: linear-gradient(135deg, #ff8a22, #ff6614);
  box-shadow: 0 10px 24px rgba(255, 103, 20, .28);
  font-weight: 900;
}
.zb-float {
  bottom: 88px;
  padding: 12px 18px;
  border-radius: 999px;
  font-size: 16px;
}
.zb-top {
  bottom: 28px;
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
}
.zb-top.is-show { display: block; }

@keyframes zb-floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@media (max-width: 1100px) {
  .zb-wrap { width: calc(100% - 48px); max-width: 900px; }
  .zb-hero__grid,
  .zb-feature__grid,
  .zb-feature__grid--reverse {
    grid-template-columns: 1fr;
  }
  .zb-hero__grid { min-height: 0; padding: 58px 0 72px; }
  .zb-hero__visual img { margin: 0 auto; }
  .zb-metric { right: 8%; }
  .zb-scene-grid,
  .zb-problem-grid,
  .zb-pills,
  .zb-tech-grid,
  .zb-why-grid {
    grid-template-columns: 1fr;
  }
  .zb-feature__media { order: -1; }
  .zb-feature__grid--reverse .zb-feature__media { order: 0; }
  .zb-compare__row { grid-template-columns: 180px 1fr 1fr; }
}

@media (max-width: 720px) {
  .zb-wrap { width: calc(100% - 28px); max-width: 560px; }
  .zb-hero { overflow: hidden; }
  .zb-hero__grid { display: block; padding: 58px 0 54px; overflow: hidden; }
  .zb-hero__copy,
  .zb-hero__actions {
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }
  .zb-hero h1 { font-size: 32px; line-height: 1.34; overflow-wrap: anywhere; }
  .zb-pill { max-width: 100%; min-height: 46px; padding: 0 16px; font-size: 15px; white-space: normal; text-align: center; }
  .zb-hero__copy p,
  .zb-head p,
  .zb-feature__copy p { font-size: 17px; }
  .zb-hero__copy p,
  .zb-head h2,
  .zb-head p {
    max-width: 100%;
    overflow-wrap: anywhere;
  }
  .zb-btn { width: 100%; min-width: 0; min-height: 66px; padding: 0 18px; font-size: 20px; }
  .zb-hero__actions { display: grid; gap: 14px; }
  .zb-hero__visual { margin-top: 42px; overflow: hidden; }
  .zb-hero-mock { width: 100%; padding: 10px 0 20px; animation: none; }
  .zb-hero-mock__layout { grid-template-columns: 108px 1fr; min-height: 0; }
  .zb-hero-mock__top { padding: 14px 16px; font-size: 12px; }
  .zb-hero-mock__side { gap: 8px; padding: 14px 10px; }
  .zb-hero-mock__side b { padding: 10px 8px; font-size: 10px; }
  .zb-hero-mock__main { gap: 12px; padding: 14px; }
  .zb-hero-mock__cards { gap: 8px; }
  .zb-hero-mock__cards div { padding: 10px; }
  .zb-hero-mock__cards strong { font-size: 18px; }
  .zb-hero-mock__showcase { grid-template-columns: 1fr; gap: 10px; }
  .zb-hero-mock__window { min-height: 160px; padding: 14px; }
  .zb-hero-mock__window-head strong { font-size: 16px; }
  .zb-hero-mock__timeline { gap: 8px; height: 94px; }
  .zb-hero-mock__phone { min-height: 120px; padding: 12px; }
  .zb-hero-mock__phone b { margin-top: 20px; font-size: 18px; }
  .zb-hero-mock__floating { width: 116px; padding: 10px 12px; right: 0; }
  .zb-hero-mock__floating strong { font-size: 16px; }
  .zb-hero-mock__floating span { font-size: 10px; }
  .zb-section,
  .zb-feature { padding: 58px 0; }
  .zb-head { margin-bottom: 34px; }
  .zb-head h2,
  .zb-feature__copy h2 { font-size: 34px; }
  .zb-problem { padding: 34px 24px; min-height: 0; }
  .zb-scene { grid-template-columns: 1fr; padding: 24px; }
  .zb-mini-card--course { gap: 12px; padding: 16px; }
  .zb-mini-card__cover { gap: 8px; padding: 0; }
  .zb-mini-card__cover i { height: 72px; border-radius: 12px; }
  .zb-mini-card__cover i:nth-child(2) { height: 94px; }
  .zb-mini-card__cover i:nth-child(3) { height: 80px; }
  .zb-mini-card__meta span { font-size: 14px; }
  .zb-mini-card__meta b { font-size: 20px; }
  .zb-phone-mini--shop { min-height: 0; padding: 12px; }
  .zb-phone-mini__screen { gap: 10px; padding: 14px; border-radius: 20px; }
  .zb-phone-mini__screen strong { font-size: 18px; }
  .zb-phone-mini__screen b { font-size: 20px; }
  .zb-phone-mini__goods { gap: 8px; }
  .zb-phone-mini__goods i { min-height: 64px; border-radius: 12px; }
  .zb-chat-mini--group { padding: 16px; }
  .zb-chat-mini--group p { font-size: 22px; }
  .zb-chat-mini__notes { gap: 6px; margin: 10px 0 14px; flex-wrap: wrap; }
  .zb-chat-mini__notes i { padding: 6px 10px; font-size: 12px; }
  .zb-data-mini--board { padding: 14px; }
  .zb-data-mini__stats { gap: 8px; }
  .zb-data-mini__stats div { padding: 10px; }
  .zb-data-mini__stats strong { font-size: 20px; }
  .zb-data-mini__chart { gap: 8px; min-height: 92px; }
  .zb-course-admin { grid-template-columns: 1fr; min-height: 0; }
  .zb-course-admin__sidebar { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; padding: 14px; }
  .zb-course-admin__sidebar b { grid-column: 1 / -1; font-size: 14px; }
  .zb-course-admin__sidebar span { padding: 8px 10px; font-size: 10px; }
  .zb-course-admin__main { padding: 14px; }
  .zb-course-admin__top strong { font-size: 18px; }
  .zb-course-admin__cards { gap: 8px; }
  .zb-course-admin__cards div { padding: 12px; }
  .zb-course-admin__cards strong { font-size: 18px; }
  .zb-course-admin__screen { gap: 8px; min-height: 124px; }
  .zb-course-admin__footer { gap: 8px; align-items: start; flex-direction: column; }
  .zb-shop-live { min-height: 0; }
  .zb-shop-live__phone { gap: 12px; padding: 12px; border-radius: 22px; }
  .zb-shop-live__hero { gap: 8px; padding: 14px; border-radius: 16px; }
  .zb-shop-live__hero strong { font-size: 20px; }
  .zb-shop-live__hero b { font-size: 20px; }
  .zb-shop-live__goods { gap: 8px; }
  .zb-shop-live__goods i { min-height: 72px; border-radius: 12px; }
  .zb-shop-live__cart { padding: 12px 14px; }
  .zb-shop-live__cart strong { font-size: 16px; }
  .zb-engagement { grid-template-columns: 1fr; gap: 12px; min-height: 0; }
  .zb-engagement__phone { gap: 12px; padding: 14px; border-radius: 20px; }
  .zb-engagement__banner { padding: 12px 14px; border-radius: 14px; font-size: 18px; }
  .zb-engagement__list { gap: 8px; }
  .zb-engagement__list div { padding: 12px 14px; border-radius: 14px; }
  .zb-engagement__list strong { font-size: 16px; }
  .zb-engagement__list span { font-size: 11px; }
  .zb-engagement__panel { padding: 14px; border-radius: 16px; }
  .zb-engagement__panel strong { font-size: 18px; }
  .zb-engagement__panel p { font-size: 14px; }
  .zb-data-board { gap: 12px; min-height: 0; padding: 14px; border-radius: 16px; }
  .zb-data-board__top strong { font-size: 18px; }
  .zb-data-board__cards { gap: 8px; }
  .zb-data-board__cards div { padding: 12px; }
  .zb-data-board__cards strong { font-size: 20px; }
  .zb-data-board__chart { gap: 8px; min-height: 120px; }
  .zb-feature__grid { gap: 32px; }
  .zb-checks { font-size: 18px; }
  .zb-compare { overflow-x: auto; }
  .zb-compare__row { min-width: 760px; }
  .zb-stats { grid-template-columns: 1fr; gap: 26px; }
  .zb-stats div { border-right: 0; }
  .zb-tech,
  .zb-why { grid-template-columns: 78px 1fr; padding: 24px; }
  .zb-tech span,
  .zb-why span { width: 68px; height: 68px; font-size: 30px; }
  .zb-tech span .zb-svg,
  .zb-why span .zb-svg { width: 34px; height: 34px; }
  .zb-slogan h2 { font-size: 42px; }
  .zb-float { display: none; }
}