/* 6Q 官网首页复刻 + 留资（对照 www.6qedu.com） */
:root {
  --bg-page: #fff1dd;
  --bg-panel: #ffffff;
  --brand: #d51741;
  --brand-soft: #ff6a45;
  --text: #333333;
  --text-2: #666666;
  --text-3: #999999;
  --cream: #fff8ef;
  --max: 1120px;
  --font: "PingFang SC", "HarmonyOS Sans", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg-page);
  color: var(--text);
  font-family: var(--font);
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  max-width: 1280px;
  margin: 0 auto;
  background: linear-gradient(180deg, #fff7ea 0%, #ffffff 220px, #ffffff 100%);
  box-shadow: 0 0 0 1px rgba(213, 23, 65, 0.05);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 36px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
}

.brand__mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background:
    conic-gradient(from 210deg, #ff7a45, #d51741, #ffb347, #ff7a45);
  box-shadow: inset 0 0 0 3px #fff;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 4px 18px;
  font-size: 14px;
  color: #444;
}

.site-nav a:hover,
.site-nav a.is-current {
  color: var(--brand);
}

.hero {
  position: relative;
  text-align: center;
  padding: 88px 24px 72px;
  overflow: hidden;
}

.hero__dots i {
  position: absolute;
  border-radius: 50%;
  opacity: 0.85;
}

.hero__dots i:nth-child(1) {
  width: 14px;
  height: 14px;
  background: #ff8a3d;
  left: 18%;
  top: 28%;
}
.hero__dots i:nth-child(2) {
  width: 10px;
  height: 10px;
  background: #d51741;
  right: 22%;
  top: 34%;
}
.hero__dots i:nth-child(3) {
  width: 8px;
  height: 8px;
  background: #ffb070;
  left: 28%;
  bottom: 26%;
}
.hero__dots i:nth-child(4) {
  width: 12px;
  height: 12px;
  background: #ff6a45;
  right: 18%;
  bottom: 30%;
}

.hero__title {
  margin: 0 0 28px;
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #2b2b2b;
  line-height: 1.15;
}

.hero__title span {
  color: var(--brand);
  margin: 0 0.08em;
}

.hero__brand {
  color: var(--brand);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 64px;
  padding: 18px 48px;
  border-radius: 44px;
  background: var(--brand);
  color: #fff;
  font-size: 19px;
  font-weight: 700;
  box-shadow: 0 12px 28px rgba(213, 23, 65, 0.28);
  transition: transform 180ms var(--ease), filter 180ms ease;
}

.hero__cta:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.hero__sub {
  margin: 22px 0 0;
  font-size: 18px;
  color: #444;
}

.stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 28px 40px;
}

.stat {
  text-align: center;
  padding: 8px 6px 16px;
}

.stat__icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 12px;
  border-radius: 22px;
  background: linear-gradient(145deg, #fff, #f3f3f3);
  box-shadow:
    0 10px 24px rgba(0, 0, 0, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  position: relative;
}

.stat__icon::after {
  content: "";
  position: absolute;
  inset: auto 10% -10px 10%;
  height: 18px;
  border-radius: 50%;
  filter: blur(8px);
  opacity: 0.55;
}

.stat__icon--g {
  background: linear-gradient(145deg, #e8fff0, #c8f0d8);
}
.stat__icon--g::after {
  background: #7ddea0;
}
.stat__icon--p {
  background: linear-gradient(145deg, #f3e8ff, #e0d0ff);
}
.stat__icon--p::after {
  background: #b49cff;
}
.stat__icon--r {
  background: linear-gradient(145deg, #ffe8f0, #ffd0dc);
}
.stat__icon--r::after {
  background: #ff8aa8;
}
.stat__icon--y {
  background: linear-gradient(145deg, #fff6d8, #ffe7a8);
}
.stat__icon--y::after {
  background: #ffd066;
}

.stat__num {
  margin: 0;
  font-size: 15px;
  color: #555;
}

.stat__num strong {
  font-size: 28px;
  color: var(--brand);
  font-weight: 800;
}

.stat__desc {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--text-2);
}

/* ——— 首页留资（插入区）——— */
.home-lead {
  max-width: var(--max);
  margin: 8px auto 64px;
  padding: 0 28px;
}

.home-lead__card {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  border: 1px solid rgba(213, 23, 65, 0.16);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(255, 244, 236, 0.98) 55%, #ffe8dc);
  box-shadow: 0 18px 40px rgba(213, 23, 65, 0.1);
  isolation: isolate;
  animation: home-lead-in 0.55s var(--ease) both;
}

.home-lead__aura {
  position: absolute;
  inset: -30% -10% auto;
  height: 70%;
  background:
    radial-gradient(ellipse at 15% 40%, rgba(255, 140, 100, 0.28), transparent 55%),
    radial-gradient(ellipse at 90% 0%, rgba(213, 23, 65, 0.12), transparent 50%);
  z-index: 0;
  pointer-events: none;
}

.home-lead__head,
.home-lead__body,
.home-lead__thanks {
  position: relative;
  z-index: 1;
}

.home-lead__head {
  padding: 28px 32px 18px;
  border-bottom: 1px dashed rgba(213, 23, 65, 0.18);
}

.home-lead__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(213, 23, 65, 0.1);
  color: var(--brand);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.home-lead__eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px rgba(213, 23, 65, 0.18);
}

.home-lead__title {
  margin: 0 0 10px;
  font-size: 28px;
  font-weight: 800;
  color: #3a2a28;
}

.home-lead__consent {
  margin: 0;
  max-width: 720px;
  font-size: 14px;
  line-height: 1.7;
  color: #8a6f66;
}

.home-lead__body {
  padding: 22px 32px 28px;
}

.home-lead__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 28px 36px;
  align-items: start;
}

.home-lead__label {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 700;
  color: #5a433c;
}

.home-lead__label span {
  margin-left: 8px;
  font-weight: 400;
  font-size: 12px;
  color: #a08a7c;
}

.home-lead__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.home-lead__surname {
  display: block;
  width: 100%;
  height: 48px;
  margin: 0 0 14px;
  padding: 0 14px;
  border: 1.5px solid rgba(213, 23, 65, 0.16);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.95);
  font: inherit;
  font-size: 15px;
  outline: none;
  box-sizing: border-box;
}

.home-lead__surname:focus {
  border-color: rgba(213, 23, 65, 0.45);
  box-shadow: 0 0 0 3px rgba(213, 23, 65, 0.12);
}

.home-lead__chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 8px 16px 8px 12px;
  border: 1.5px solid rgba(213, 23, 65, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: #5a433c;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: transform 160ms var(--ease), background 200ms var(--ease), border-color 200ms var(--ease),
    box-shadow 200ms var(--ease), color 200ms var(--ease);
}

.home-lead__chip:active {
  transform: scale(0.97);
}

.home-lead__chip-mark {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1.5px solid rgba(180, 140, 120, 0.45);
  background: #fff;
  position: relative;
}

.home-lead__chip-mark::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 8px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(0);
  opacity: 0;
  transition: transform 180ms var(--ease), opacity 160ms ease;
}

.home-lead__chip.is-on {
  background: linear-gradient(135deg, #fff1ec, #ffd9cf);
  border-color: rgba(213, 23, 65, 0.45);
  color: var(--brand);
  font-weight: 700;
  box-shadow: 0 6px 16px rgba(213, 23, 65, 0.12);
}

.home-lead__chip.is-on .home-lead__chip-mark {
  background: var(--brand);
  border-color: var(--brand);
}

.home-lead__chip.is-on .home-lead__chip-mark::after {
  opacity: 1;
  transform: rotate(45deg) scale(1);
}

.home-lead__other {
  display: grid;
  grid-template-rows: 0fr;
  margin-top: 0;
  opacity: 0;
  transform: translateY(-6px);
  transition: grid-template-rows 0.32s var(--ease), opacity 0.28s var(--ease), transform 0.28s var(--ease),
    margin-top 0.28s var(--ease);
  pointer-events: none;
}

.home-lead__other-inner {
  overflow: hidden;
  min-height: 0;
}

.home-lead__other.is-open {
  grid-template-rows: 1fr;
  margin-top: 14px;
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.home-lead__textarea {
  width: 100%;
  min-height: 88px;
  padding: 12px 14px;
  border: 1.5px solid rgba(213, 23, 65, 0.16);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.95);
  font: inherit;
  font-size: 14px;
  line-height: 1.55;
  resize: vertical;
  outline: none;
}

.home-lead__textarea:focus {
  border-color: rgba(213, 23, 65, 0.45);
  box-shadow: 0 0 0 3px rgba(213, 23, 65, 0.12);
}

.home-lead__phone > label {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 700;
  color: #5a433c;
}

.home-lead__phone > label span {
  margin-left: 8px;
  font-weight: 400;
  font-size: 12px;
  color: #a08a7c;
}

.home-lead__phone-field {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 0 4px 0 16px;
  border-radius: 14px;
  border: 1.5px solid rgba(213, 23, 65, 0.16);
  background: rgba(255, 255, 255, 0.95);
  transition: border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.home-lead__phone-field:focus-within {
  border-color: rgba(213, 23, 65, 0.45);
  box-shadow: 0 0 0 3px rgba(213, 23, 65, 0.12);
}

.home-lead__phone-prefix {
  padding-right: 12px;
  margin-right: 12px;
  border-right: 1px solid rgba(200, 160, 140, 0.35);
  font-size: 14px;
  font-weight: 700;
  color: #a08a7c;
}

.home-lead__phone-field input {
  flex: 1;
  min-width: 0;
  height: 50px;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 16px;
  letter-spacing: 0.04em;
  outline: none;
}

.home-lead__error {
  margin: 10px 0 0;
  font-size: 13px;
  color: #c45c3a;
}

.home-lead__error.is-shake {
  animation: home-lead-shake 0.42s var(--ease);
}

.home-lead__submit {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  margin-top: 16px;
  border: 0;
  border-radius: 14px;
  background: linear-gradient(135deg, #ff5a6e, #d51741 60%, #b91036);
  color: #fff;
  font: inherit;
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(213, 23, 65, 0.28);
  transition: transform 160ms var(--ease), filter 180ms ease;
}

.home-lead__submit:hover {
  filter: brightness(1.04);
}

.home-lead__submit:active {
  transform: translateY(1px) scale(0.99);
}

.home-lead__submit:disabled {
  cursor: not-allowed;
  filter: none;
  background: linear-gradient(135deg, #f0c4b8, #e8a89a);
  box-shadow: none;
}

.home-lead__footnote {
  margin: 12px 0 0;
  text-align: center;
  font-size: 12px;
  color: #b09a8c;
}

.home-lead__thanks {
  margin: 0;
  padding: 14px 32px 20px;
  text-align: center;
  font-size: 15px;
  font-weight: 700;
  color: var(--brand);
  background: linear-gradient(180deg, transparent, rgba(213, 23, 65, 0.06));
}

.home-lead.is-done .home-lead__chip,
.home-lead.is-done .home-lead__textarea,
.home-lead.is-done .home-lead__surname,
.home-lead.is-done .home-lead__phone-field {
  pointer-events: none;
  opacity: 0.78;
}

.home-lead.is-done .home-lead__footnote {
  display: none;
}

.section-title {
  margin: 0 0 28px;
  text-align: center;
  font-size: 28px;
  font-weight: 800;
  color: #333;
}

.section-title span {
  color: #ffb0b8;
  margin: 0 10px;
  font-weight: 400;
}

.honors {
  max-width: var(--max);
  margin: 0 auto;
  padding: 20px 28px 56px;
}

.honors__row {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 36px;
  align-items: start;
}

.honors__video {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 10;
  border-radius: 12px;
  background: #111;
  color: #fff;
  font-size: 14px;
}

.honors__btn {
  display: inline-flex;
  margin-top: 16px;
  padding: 12px 22px;
  border-radius: 8px;
  background: #ff8247;
  color: #fff;
  font-weight: 700;
}

.honors__list {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.honors__list li {
  position: relative;
  padding: 14px 0 14px 18px;
  border-bottom: 1px solid #f0e6dc;
  font-size: 15px;
  line-height: 1.6;
  color: #333;
}

.honors__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}

.founders {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 28px 56px;
}

.founders__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.founder {
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 20px;
  border-radius: 18px;
  background: #fffaf4;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.founder__avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #ff8a65, #d51741);
  color: #fff;
  font-weight: 800;
  flex-shrink: 0;
}

.founder__avatar--2 {
  background: linear-gradient(135deg, #ffb347, #ff6a45);
}

.founder h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

.founder p {
  margin: 0;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
}

.courses {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 28px 64px;
}

.courses__tagline {
  margin: -12px 0 28px;
  text-align: center;
  color: var(--text-2);
  font-size: 14px;
}

.courses__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.course {
  padding: 22px 20px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid #f2e8de;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.03);
}

.course h3 {
  margin: 0 0 10px;
  font-size: 17px;
  color: var(--brand);
}

.course p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-2);
}

/* ——— 合作平台 ——— */
.partners {
  max-width: var(--max);
  margin: 8px auto 48px;
  padding: 8px 28px 12px;
}

.partners__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.partners__head h2 {
  margin: 0;
  font-size: 28px;
  font-weight: 800;
  color: #3aa24a;
  letter-spacing: 0.04em;
}

.partners__head span {
  font-size: 16px;
  font-weight: 700;
  color: #3aa24a;
}

.partners__line {
  position: relative;
  height: 18px;
  margin: 8px 0 18px;
}

.partners__line::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 8px;
  height: 2px;
  background: #7dce86;
}

.partners__line i {
  position: absolute;
  left: 92px;
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #3aa24a;
  box-shadow: 0 0 0 3px #fff, 0 0 0 4px #7dce86;
}

.partners__grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px 12px;
  margin: 0;
  padding: 6px 0 8px;
  list-style: none;
}

.partner {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 72px;
  padding: 8px 10px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid #f0efe8;
}

.partner__mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  background: #c9a227;
}

.partner__mark--seal {
  background: linear-gradient(145deg, #8b1e3f, #5c1028);
}
.partner__mark--cnr {
  background: #e10600;
}
.partner__mark--green {
  background: #2e8b4a;
}
.partner__mark--gold {
  background: linear-gradient(145deg, #d4a017, #8a6a10);
}
.partner__mark--jx {
  background: linear-gradient(145deg, #1aa3c4, #2e8b4a);
}
.partner__mark--red {
  background: #d51741;
}
.partner__mark--river {
  background: #1d6fd6;
}
.partner__mark--netease {
  background: #e10600;
}
.partner__mark--tv {
  background: #f5a623;
  color: #5a3a00;
}
.partner__mark--sina {
  background: #e10600;
}
.partner__mark--ifeng {
  background: #c41230;
}
.partner__mark--qq {
  background: #12b7f5;
}
.partner__mark--sohu {
  background: #ffcb05;
  color: #333;
}
.partner__mark--school {
  background: linear-gradient(145deg, #3aa24a, #1d6f8a);
}

.partner__name {
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
  color: #333;
}

.partner__name small {
  display: block;
  margin-top: 2px;
  font-size: 10px;
  font-weight: 500;
  color: #888;
  letter-spacing: 0.01em;
}

.site-footer {
  padding: 28px 36px 36px;
  background: #2a2220;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  line-height: 1.7;
}

.site-footer p {
  margin: 0 0 4px;
}

.site-footer__note {
  margin-top: 12px !important;
  color: rgba(255, 255, 255, 0.45);
  font-size: 12px;
}

.proto-note {
  max-width: 1280px;
  margin: 16px auto 40px;
  padding: 14px 18px;
  border-radius: 12px;
  background: #fff;
  border: 1px dashed #e0cfc0;
  color: #7a655c;
  font-size: 13px;
  line-height: 1.6;
}

.proto-note ul {
  margin: 8px 0 0;
  padding-left: 18px;
}

@keyframes home-lead-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes home-lead-shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}

@media (max-width: 960px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 18px;
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .home-lead__grid,
  .honors__row,
  .founders__row,
  .courses__grid {
    grid-template-columns: 1fr;
  }
  .partners__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .home-lead__card,
  .home-lead__error.is-shake,
  .home-lead__chip,
  .home-lead__other,
  .home-lead__submit {
    animation: none !important;
    transition: none !important;
  }
}