:root {
  --text: #111318;
  --muted: #566171;
  --line: #eff0f5;
  --topbar-h: clamp(48px, 12.27vw, 70px);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
}

body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  letter-spacing: 0;
}

button {
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.page {
  min-width: 320px;
  min-height: 100dvh;
  background: #fff;
}

.plain-topbar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--topbar-h);
  background: #fff;
}

.plain-topbar h1 {
  margin: 0;
  color: #111;
  font-size: clamp(15px, 3.73vw, 22px);
  line-height: 1;
  font-weight: 500;
}

.back-button {
  position: absolute;
  left: clamp(8px, 2.13vw, 16px);
  top: 50%;
  width: clamp(28px, 7.47vw, 42px);
  height: clamp(28px, 7.47vw, 42px);
  transform: translateY(-50%);
  color: #18202a;
}

.back-button svg {
  width: 72%;
  height: 72%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.content {
  padding: clamp(16px, 4vw, 30px) clamp(15px, 4vw, 30px) 32px;
}

.survey-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: clamp(114px, 26.67vw, 152px);
  overflow: hidden;
  border-radius: clamp(7px, 1.87vw, 12px);
  background: linear-gradient(105deg, #5aaaf9 0%, #66b8ff 58%, #baf7ff 100%);
  color: #fff;
}

.survey-banner div:first-child {
  position: relative;
  z-index: 1;
  min-width: 0;
  padding-left: clamp(24px, 6.4vw, 42px);
  text-shadow: 0 2px 5px rgba(35, 93, 164, 0.25);
}

.survey-banner strong {
  display: block;
  font-size: clamp(28px, 7.47vw, 44px);
  line-height: 1.2;
  font-weight: 800;
}

.survey-banner span {
  display: block;
  margin-top: clamp(11px, 2.93vw, 17px);
  font-size: clamp(16px, 4.27vw, 26px);
  line-height: 1.2;
  font-weight: 700;
  white-space: nowrap;
}

.scroll-art {
  position: relative;
  flex: 0 0 34%;
  align-self: stretch;
}

.scroll-art::before {
  content: "";
  position: absolute;
  right: clamp(24px, 6.4vw, 42px);
  top: clamp(20px, 5.33vw, 32px);
  width: clamp(78px, 20.8vw, 118px);
  height: clamp(42px, 11.2vw, 66px);
  border-radius: 48% 52% 45% 55%;
  background: #ffe08b;
  box-shadow: 12px 10px 0 #ffb05f;
  transform: rotate(24deg);
}

.scroll-art::after {
  content: "";
  position: absolute;
  right: clamp(78px, 20.8vw, 120px);
  bottom: clamp(26px, 6.93vw, 46px);
  width: clamp(48px, 12.8vw, 74px);
  height: clamp(48px, 12.8vw, 74px);
  border: clamp(7px, 1.87vw, 11px) solid #f65757;
  border-top-color: transparent;
  border-left-color: transparent;
  border-radius: 50%;
  transform: rotate(-15deg);
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: clamp(136px, 31.73vw, 210px);
}

.empty-icon {
  width: clamp(130px, 34.67vw, 190px);
  height: clamp(130px, 34.67vw, 190px);
}

.empty-state p {
  margin: clamp(26px, 6.93vw, 40px) 0 0;
  color: #111;
  font-size: clamp(18px, 4.8vw, 28px);
  line-height: 1.4;
}