/*
 * 爱开口英语官网首页 · 方案 A「开口气泡」。
 * Logo 本身是张嘴笑的对话气泡，整页用「气泡」做图形语言：首屏整块品牌绿托着吉祥物、角色台词从它身边冒出来、卡片带气泡尾巴。
 * 设计稿 ui/website-redesign/a-bubble.html；文案口径见 docs/superpowers/specs/2026-10-09-website-redesign-design.md §4。
 * 界面稿（手机、周报、视频）只是示意，数字都标了「示例」或是线上真实配置，不要改成效果承诺。
 */

main p {
  margin: 0;
}

main h1,
main h2,
main h3 {
  margin: 0;
  font-weight: 700;
}

.en {
  font-family: var(--font-en);
}

/* 滚动渐显（site.js 给进入视口的 .rv 加 .in） */
.rv {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.rv.in {
  opacity: 1;
  transform: none;
}
.rv.d1 { transition-delay: 0.08s; }
.rv.d2 { transition-delay: 0.16s; }
.rv.d3 { transition-delay: 0.24s; }

/* ---------- 首屏 ---------- */
.hero-shell {
  padding: 8px 20px 0;
}

.hero {
  /* 不用 overflow: hidden：首屏里的安卓下载弹层要能伸出绿色面板、盖在下面的卡片上。
     圆角靠 border-radius 本身裁背景，底纹 ::before 用 border-radius: inherit 跟着裁。 */
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 72px 0 132px;
  border-radius: var(--radius-panel);
  color: #fff;
  background:
    radial-gradient(60% 70% at 82% 38%, rgba(120, 240, 190, 0.38) 0%, rgba(120, 240, 190, 0) 60%),
    radial-gradient(40% 50% at 8% 0%, rgba(255, 255, 255, 0.16) 0%, rgba(255, 255, 255, 0) 70%),
    linear-gradient(155deg, #1cc28b 0%, var(--g-deep) 48%, #06876a 100%);
}

/* 底纹：淡淡的圆点，像对话框里的「···」 */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.13) 1.6px, transparent 1.7px);
  background-size: 26px 26px;
  mask-image: linear-gradient(110deg, transparent 0%, #000 55%, transparent 100%);
  -webkit-mask-image: linear-gradient(110deg, transparent 0%, #000 55%, transparent 100%);
}

.hero .wrap {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 32px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge b {
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--sun);
  color: var(--sun-ink);
  font-size: 12px;
  white-space: nowrap;
}

.hero h1 {
  margin: 22px 0;
  font-family: var(--font-round);
  font-size: clamp(44px, 6vw, 78px);
  line-height: 1.12;
  letter-spacing: 0.01em;
  text-shadow: 0 2px 0 rgba(0, 70, 50, 0.12);
}

/* 「开口说」放进一个黄色对话气泡里 */
.say {
  position: relative;
  z-index: 0;
  display: inline-block;
  margin-left: 0.04em;
  padding: 0 0.16em;
  color: var(--ink);
  text-shadow: none;
}

.say::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0.1em -0.02em 0.02em;
  border-radius: 0.3em;
  background: var(--sun);
  transform: rotate(-2.5deg);
  box-shadow: 0 0.08em 0 rgba(120, 80, 0, 0.18);
}

.say::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: 0.3em;
  bottom: -0.2em;
  width: 0.36em;
  height: 0.36em;
  background: var(--sun);
  clip-path: polygon(0 0, 100% 0, 10% 100%);
  transform: rotate(-6deg);
}

.pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px 8px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
  font-weight: 600;
  font-size: 15px;
  box-shadow: 0 6px 16px -10px rgba(0, 60, 40, 0.6);
}

.pill i {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  color: #fff;
}

.pill svg {
  width: 15px;
  height: 15px;
}

.lede {
  max-width: 30em;
  font-size: 18px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.92);
}

/* 下载按钮组：电脑上两颗商店按钮 + 二维码卡 */
.dl {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 14px;
  margin-top: 30px;
}

.dl-btns {
  display: grid;
  grid-template-columns: 220px;
  gap: 10px;
}

.store {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px 10px 14px;
  border-radius: 18px;
  background: #fff;
  color: var(--ink);
  text-align: left;
  box-shadow: 0 10px 22px -14px rgba(0, 60, 40, 0.7);
  transition: transform 0.15s ease;
}

.store:hover {
  transform: translateY(-2px);
  color: var(--ink);
}

.store svg {
  width: 26px;
  height: 26px;
  flex: none;
}

.store small {
  display: block;
  font-size: 12px;
  line-height: 1.2;
  color: var(--ink-2);
}

.store strong {
  display: block;
  font-size: 16px;
  line-height: 1.3;
}

.store .chev {
  width: 14px;
  height: 14px;
  margin-left: auto;
  color: var(--ink-2);
  transition: transform 0.15s ease;
}

.store[aria-expanded="true"] .chev {
  transform: rotate(180deg);
}

.qr-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px 12px 12px;
  border-radius: 20px;
  background: #fff;
  color: var(--ink);
  box-shadow: 0 10px 22px -14px rgba(0, 60, 40, 0.7);
}

.qr-card img {
  width: 98px;
  height: 98px;
}

.qr-card b {
  display: block;
  font-size: 15px;
}

.qr-card span {
  display: block;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-2);
}

.harmony-line {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.82);
}

.harmony-line svg {
  width: 16px;
  height: 16px;
  flex: none;
}

.hook {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 18px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
}

.hook span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hook svg {
  width: 16px;
  height: 16px;
}

.m-dl {
  display: none;
}

/* 安卓按钮弹层（电脑上） */
.pop-wrap {
  position: relative;
}

.store-pop {
  position: absolute;
  z-index: 20;
  top: calc(100% + 10px);
  left: 0;
  width: 360px;
  max-width: calc(100vw - 32px);
  padding: 16px;
  border-radius: 20px;
  background: #fff;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.6;
  box-shadow: 0 24px 48px -20px rgba(0, 50, 35, 0.55);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: 0.18s ease;
}

.store-pop.open {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.store-pop .sp-t {
  font-weight: 600;
}

.store-pop .sp-d {
  margin-top: 4px;
  color: var(--ink-2);
}

.sp-stores {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.sp-stores span {
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--mint);
  color: var(--ink-2);
  font-size: 12.5px;
}

.sp-apk {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
  min-height: 42px;
  border-radius: 999px;
  background: var(--mint-2);
  color: var(--g-ink);
  font-weight: 600;
}

.sp-apk[hidden] {
  display: none;
}

.sp-apk svg {
  width: 18px;
  height: 18px;
}

/* 首屏右侧：吉祥物 + 对话气泡 */
.stage {
  position: relative;
  height: 520px;
}

.stage .glow {
  position: absolute;
  left: 50%;
  top: 52%;
  width: 440px;
  height: 440px;
  margin: -220px 0 0 -220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0) 65%);
}

.stage .mascot {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 360px;
  height: auto;
  margin: -168px 0 0 -170px;
  filter: drop-shadow(0 30px 30px rgba(0, 60, 40, 0.28));
  animation: bob 6s ease-in-out infinite;
}

.bubble {
  position: absolute;
  z-index: 2;
  max-width: 290px;
  padding: 12px 16px;
  border-radius: 22px;
  background: #fff;
  color: var(--ink);
  box-shadow: 0 18px 34px -20px rgba(0, 50, 35, 0.75);
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.35;
  animation: float 7s ease-in-out infinite;
}

.bubble small {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 12px;
  color: var(--ink-2);
  letter-spacing: 0.02em;
}

.bubble::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 16px;
  background: inherit;
}

.b-mia {
  top: 18px;
  left: -6px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom-right-radius: 6px;
}

.b-mia img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  flex: none;
}

.b-mia::after {
  right: 18px;
  bottom: -12px;
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.b-order {
  top: 196px;
  right: -18px;
  max-width: 230px;
  background: var(--sun);
  border-top-left-radius: 6px;
  animation-delay: -2.4s;
}

.b-order small {
  color: var(--sun-ink);
}

.b-order::after {
  left: -10px;
  top: 0;
  width: 14px;
  clip-path: polygon(100% 0, 100% 100%, 0 0);
}

.b-fix {
  bottom: 26px;
  left: 10px;
  border-top-right-radius: 6px;
  font-size: 16px;
  animation-delay: -4.6s;
}

.b-fix::after {
  right: -10px;
  top: 0;
  width: 14px;
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

.b-fix s {
  color: var(--red);
  text-decoration-thickness: 2px;
}

.b-fix ins {
  padding: 0 4px;
  border-radius: 6px;
  background: var(--mint-2);
  color: var(--g-ink);
  text-decoration: none;
}

.lv {
  position: absolute;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.9);
  color: #fff;
  font: 900 18px/1 var(--font-en);
  text-align: center;
  box-shadow: 0 10px 20px -10px rgba(0, 0, 0, 0.45);
}

.lv small {
  display: block;
  margin-top: 2px;
  font: 600 10px/1 var(--font-body);
}

.lv-a1 {
  right: 64px;
  top: 46px;
  background: var(--cefr-a1);
  transform: rotate(10deg);
}

.lv-b1 {
  right: 36px;
  bottom: 84px;
  width: 54px;
  height: 54px;
  background: var(--cefr-b1);
  font-size: 16px;
  transform: rotate(-8deg);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes bob {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(-1.5deg); }
}

/* ---------- 三件事：压在首屏底边上 ---------- */
.trio {
  position: relative;
  z-index: 2;
  margin-top: -84px;
}

.trio .wrap {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.t-card {
  position: relative;
  display: block;
  padding: 26px 26px 24px;
  border-radius: var(--radius-card);
  background: #fff;
  color: var(--ink);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease;
}

.t-card:hover {
  transform: translateY(-4px);
  color: var(--ink);
}

/* 气泡尾巴 */
.t-card::after {
  content: "";
  position: absolute;
  left: 40px;
  bottom: -14px;
  width: 26px;
  height: 16px;
  background: #fff;
  clip-path: polygon(0 0, 100% 0, 15% 100%);
}

.t-ico {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 16px;
  border-radius: 18px;
  color: #fff;
}

.t-ico svg {
  width: 26px;
  height: 26px;
}

.t-card h3 {
  margin-bottom: 6px;
  font-family: var(--font-round);
  font-size: 23px;
}

.t-card p {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.7;
}

.t-card .more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--g-ink);
}

/* ---------- 通用区块 ---------- */
section.blk {
  padding: 120px 0 0;
}

.head {
  max-width: 760px;
  margin: 0 auto 52px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--g-ink);
  font-size: 14px;
  font-weight: 600;
}

.eyebrow i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--g);
}

.head h2,
.split h2 {
  margin: 16px 0 14px;
  font-family: var(--font-round);
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.22;
  text-wrap: balance;
}

.head p,
.split .desc {
  color: var(--ink-2);
  font-size: 18px;
}

.hl-y {
  padding: 0 2px;
  background: linear-gradient(transparent 58%, var(--sun) 58%, var(--sun) 92%, transparent 92%);
}

/* 角色卡 */
.cast {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.c-card {
  position: relative;
  padding: 26px;
  border-radius: var(--radius-card);
  background: #fff;
  border: 1px solid var(--line);
}

.c-top {
  display: flex;
  align-items: center;
  gap: 16px;
}

.c-ava {
  flex: none;
  width: 84px;
  height: 84px;
  padding: 4px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 3px var(--ring, var(--mint-3));
}

.c-name {
  font: 900 30px/1.05 var(--font-en);
  letter-spacing: -0.01em;
}

.c-tag {
  display: inline-block;
  margin-top: 8px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--tag-bg, var(--mint-2));
  color: var(--tag-ink, var(--g-ink));
  font-size: 13px;
  font-weight: 600;
}

.c-bio {
  min-height: 3.4em;
  margin: 16px 0 18px !important;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.7;
}

.c-say {
  position: relative;
  padding: 14px 16px;
  border-radius: 18px;
  border-top-left-radius: 6px;
  background: var(--say-bg, var(--mint));
  color: var(--ink);
  font: 800 16px/1.45 var(--font-en);
}

.c-say::before {
  content: "";
  position: absolute;
  left: 0;
  top: -10px;
  width: 18px;
  height: 12px;
  background: inherit;
  clip-path: polygon(0 0, 0 100%, 100% 100%);
}

.c-mia { --ring: #ffd0d0; --tag-bg: #ffe9e6; --tag-ink: #b2412f; --say-bg: #fff3f1; }
.c-leo { --ring: #c9dbff; --tag-bg: #e6eeff; --tag-ink: #2f5bc4; --say-bg: #f1f5ff; }
.c-ella { --ring: #ddd0ff; --tag-bg: #efe9ff; --tag-ink: #6a48c9; --say-bg: #f6f2ff; }

/* 左右分栏 */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 72px;
  align-items: center;
}

.split.rev > :first-child {
  order: 2;
}

/* 手机稿（还原 App 浅色界面，四个 Tab：单词 / 口语 / 视频 / 我的） */
.phone-zone {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 20px 0;
}

.phone {
  position: relative;
  flex: none;
  width: 300px;
  height: 630px;
  padding: 10px;
  border-radius: 48px;
  background: #13221d;
  box-shadow: 0 50px 80px -40px rgba(6, 70, 50, 0.55), inset 0 0 0 2px #2c3d37;
}

.phone::before {
  content: "";
  position: absolute;
  z-index: 5;
  top: 20px;
  left: 50%;
  width: 92px;
  height: 26px;
  margin-left: -46px;
  border-radius: 14px;
  background: #13221d;
}

.scr {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border-radius: 38px;
  background: linear-gradient(180deg, #f4fbf8 0%, #e9f6f0 100%);
  color: var(--ink);
  font-size: 12px;
  line-height: 1.45;
}

.sb {
  flex: none;
  display: flex;
  justify-content: space-between;
  height: 46px;
  padding: 17px 26px 0;
  font: 600 12px/1 -apple-system, sans-serif;
}

.sb i {
  position: relative;
  display: inline-block;
  width: 22px;
  height: 10px;
  border-radius: 3px;
  border: 1.5px solid currentColor;
}

.sb i::after {
  content: "";
  position: absolute;
  inset: 1px;
  right: 4px;
  border-radius: 1px;
  background: currentColor;
}

.p-body {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  padding: 4px 16px 10px;
}

.tabbar {
  flex: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
  height: 62px;
  padding-bottom: 8px;
  background: #fff;
  border-top: 1px solid var(--line);
}

.tabbar span {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: 10px;
  color: #7a8f88;
}

.tabbar svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tabbar b {
  display: grid;
  place-items: center;
  width: 44px;
  height: 24px;
  border-radius: 12px;
}

.tabbar .on {
  color: var(--g);
}

.tabbar .on b {
  background: var(--mint-2);
}

/* 通话页 */
.call-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 2px 0 12px;
}

.call-top b {
  font-size: 15px;
}

.call-top .tm {
  margin-left: auto;
  font: 600 12px/1 var(--font-mono);
  color: var(--ink-2);
}

.call-top .x {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  color: var(--ink-2);
}

.ring {
  width: 104px;
  height: 104px;
  margin: 0 auto;
  padding: 6px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 4px #bfeedb, 0 0 0 12px rgba(23, 185, 129, 0.12);
}

.turn {
  margin: 12px 0 8px !important;
  text-align: center;
  font-size: 12px;
  color: var(--ink-2);
}

.task {
  display: table;
  margin: 0 auto 12px;
  padding: 5px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid #bfe7d5;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--g-ink);
}

.line {
  margin-bottom: 8px;
  padding: 10px 12px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--line);
}

.line small {
  display: block;
  margin-bottom: 2px;
  font-size: 10.5px;
  color: var(--ink-2);
}

.line p {
  font: 700 14px/1.4 var(--font-en);
}

.line .tools {
  display: flex;
  gap: 12px;
  margin-top: 6px;
  font-size: 10.5px;
  color: var(--g-ink);
}

.line.me {
  margin-left: 34px;
  background: #e2f6ec;
  border-color: #c6ebd9;
  border-top-right-radius: 6px;
}

.line.me .mk {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--g-ink);
}

.ctl {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 30px;
  margin-top: 16px;
}

.side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-size: 10.5px;
  color: var(--ink-2);
}

.side b {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 17px;
  font-weight: 400;
}

.mic {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--g);
  color: #fff;
  box-shadow: 0 0 0 8px rgba(23, 185, 129, 0.16);
}

.mic svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.mic-tip {
  margin-top: 10px !important;
  text-align: center;
  font-size: 11px;
  color: var(--ink-2);
}

/* 浮在手机旁的卡片 */
.float-card {
  position: absolute;
  z-index: 3;
  width: 270px;
  padding: 16px 18px;
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--shadow);
  font-size: 13px;
}

.pz-call {
  justify-content: flex-start;
  padding-left: 24px;
}

.review {
  right: -36px;
  bottom: 34px;
  transform: rotate(2deg);
}

.review h4 {
  display: flex;
  justify-content: space-between;
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
}

.review .src {
  font: 700 15px/1.4 var(--font-en);
}

.review .src s {
  color: var(--red);
  text-decoration-thickness: 2px;
}

.review .fix {
  margin-top: 6px !important;
  padding: 8px 10px;
  border-radius: 12px;
  background: var(--mint);
  color: var(--g-ink);
  font: 700 14px/1.4 var(--font-en);
}

.review .fix small {
  display: block;
  margin-bottom: 2px;
  font: 600 11px/1.4 var(--font-body);
  color: var(--ink-2);
}

.review .used {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 2px 8px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-weight: 600;
}

.review .used em {
  font-style: normal;
  white-space: nowrap;
}

.review .used span {
  font: 700 13px/1.3 var(--font-en);
  color: var(--ink-2);
}

.remember {
  right: -18px;
  top: 70px;
  width: 236px;
  transform: rotate(-3deg);
}

.remember b {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
  font-size: 13px;
}

.remember p {
  color: var(--ink-2);
  font-size: 12.5px;
  line-height: 1.6;
}

/* 功能要点 */
.feats {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.feat {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px 18px;
  border-radius: 22px;
  background: #fff;
  border: 1px solid var(--line);
}

.feat i {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: var(--mint-2);
  font-style: normal;
  font-size: 22px;
}

.feat h3 {
  margin-bottom: 2px;
  font-size: 17px;
}

.feat p {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.65;
}

/* 三档难度 */
.levels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 72px;
}

.lvl {
  position: relative;
  overflow: hidden;
  padding: 26px 26px 22px;
  border-radius: var(--radius-card);
  background: #fff;
  border: 1px solid var(--line);
}

.lvl::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 6px;
  background: var(--c);
}

.lvl .code {
  display: inline-grid;
  place-items: center;
  min-width: 46px;
  height: 30px;
  padding: 0 10px;
  border-radius: 10px;
  background: var(--c);
  color: #fff;
  font: 900 15px/1 var(--font-en);
}

.lvl h3 {
  display: inline;
  margin-left: 10px;
  font-family: var(--font-round);
  font-size: 24px;
  vertical-align: middle;
}

.lvl .can {
  margin: 14px 0 !important;
  color: var(--ink-2);
  font-size: 15px;
}

.lvl .ex {
  position: relative;
  padding: 12px 14px;
  border-radius: 16px;
  border-bottom-left-radius: 6px;
  background: var(--soft);
  font: 800 15.5px/1.4 var(--font-en);
}

.lvl .scenes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

.lvl .scenes span {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--mint);
  color: var(--ink-2);
  font-size: 13px;
}

.lvl-a1 { --c: var(--cefr-a1); --soft: #e4f6ee; }
.lvl-a2 { --c: var(--cefr-a2); --soft: #e9f0ff; }
.lvl-b1 { --c: var(--cefr-b1); --soft: #fff0e0; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 24px;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--ink);
  color: #fff;
}

.stats div {
  padding: 26px 28px;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.stats div:first-child {
  border-left: 0;
}

.stats b {
  display: block;
  font: 900 44px/1 var(--font-en);
  color: #7ff0c3;
}

.stats span {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.78);
}

/* ---------- 单词 ---------- */
.panel {
  padding: 72px 64px;
  border-radius: var(--radius-panel);
  background: linear-gradient(160deg, #e6f7ef 0%, #f4fbf8 100%);
}

.checks {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.checks li {
  position: relative;
  padding-left: 34px;
  font-size: 16px;
}

.checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--g) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center / 14px no-repeat;
}

.checks b {
  font-weight: 600;
}

.modes {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.modes span {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 18px;
  color: #fff;
  font: 700 22px/1 var(--font-round);
  box-shadow: var(--shadow-sm);
}

.modes small {
  flex-basis: 100%;
  margin-top: 2px;
  font-size: 14px;
  color: var(--ink-2);
}

.free-review {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 28px;
  padding: 16px 20px;
  border-radius: 22px;
  background: var(--sun-soft);
  border: 1px solid #ffe49a;
}

.free-review i {
  display: grid;
  flex: none;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--sun);
  font-style: normal;
  font-size: 20px;
}

.free-review b {
  display: block;
  font-size: 16px;
}

.free-review span {
  font-size: 14px;
  color: var(--ink-2);
}

/* 单词首页稿 */
.w-h {
  margin: 4px 0 10px !important;
  font-size: 20px;
  font-weight: 700;
}

.w-search {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  margin-bottom: 12px;
  padding: 0 12px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid #cdebdc;
  color: #8aa59c;
}

.w-card {
  overflow: hidden;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--line);
}

.w-tip {
  padding: 8px 12px;
  background: #fde58a;
  border-left: 4px solid #e9a400;
  color: #6a4b00;
  font-weight: 600;
  font-size: 12px;
}

.w-in {
  padding: 12px;
}

.w-sec {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  font-size: 13px;
}

.w-sec em {
  font-style: normal;
  color: var(--g-ink);
  font-size: 12px;
}

.w-book {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 10px 0 14px;
}

.w-cover {
  display: grid;
  place-items: center;
  width: 44px;
  height: 58px;
  border-radius: 6px;
  background: linear-gradient(160deg, #ffd88a, #ff9f6b);
  color: #fff;
  font: 900 13px/1 var(--font-en);
  box-shadow: inset -3px 0 0 rgba(0, 0, 0, 0.08);
}

.w-book b {
  display: block;
  font-size: 12.5px;
}

.w-book small {
  color: var(--ink-2);
  font-size: 11px;
}

.w-bar {
  height: 5px;
  margin-top: 6px;
  overflow: hidden;
  border-radius: 3px;
  background: #e7efeb;
}

.w-bar i {
  display: block;
  width: 72%;
  height: 100%;
  border-radius: 3px;
  background: var(--g);
}

.w-plan {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 8px 0 12px;
}

.w-plan div {
  padding: 0 6px;
}

.w-plan div + div {
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

.w-plan small {
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
  color: var(--ink-2);
}

.w-plan span {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-right: 8px;
  font-size: 11.5px;
  line-height: 1.9;
  color: var(--ink-2);
}

.w-plan span b {
  font: 900 17px/1 var(--font-en);
  color: var(--g-ink);
}

.w-plan span b.o {
  color: #e98a00;
}

.w-cta {
  display: grid;
  place-items: center;
  height: 40px;
  border-radius: 20px;
  background: var(--g);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  box-shadow: 0 8px 14px -10px rgba(10, 140, 100, 0.9);
}

.w-tools {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 12px;
}

.w-tools span {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 0;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 11px;
  font-weight: 600;
}

.w-tools i {
  font-style: normal;
  font-size: 20px;
}

.orbit {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 18px;
  background: #fff;
  box-shadow: var(--shadow);
  font-weight: 600;
  font-size: 14px;
}

.orbit i {
  font-style: normal;
  font-size: 18px;
}

.o1 { left: -28px; top: 170px; transform: rotate(-4deg); }
.o2 { right: -34px; top: 330px; transform: rotate(3deg); }
.o3 { left: -18px; bottom: 150px; transform: rotate(2deg); background: var(--sun); }

/* ---------- 视频 ---------- */
.vid {
  position: relative;
}

.vid-frame {
  position: relative;
  overflow: hidden;
  border-radius: 32px;
  background: #0d1d18;
  box-shadow: var(--shadow);
}

.vid-frame img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.vid-frame .shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 50%, rgba(0, 0, 0, 0.55));
}

.sub {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 56px;
  text-align: center;
  color: #fff;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.sub p {
  font: 800 26px/1.3 var(--font-en);
}

.sub p span {
  opacity: 0.65;
}

.sub p span.done {
  opacity: 1;
}

.sub p span.on {
  padding: 0 6px;
  border-radius: 8px;
  background: var(--g);
  opacity: 1;
  text-shadow: none;
}

.sub small {
  display: block;
  margin-top: 4px;
  font-size: 15px;
  opacity: 0.9;
}

.vctl {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  display: flex;
  gap: 8px;
}

.vctl span {
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
}

.vctl span.on {
  background: var(--g);
}

.cefr {
  position: absolute;
  right: 16px;
  top: 16px;
  padding: 4px 10px;
  border-radius: 10px;
  background: var(--cefr-a2);
  color: #fff;
  font: 900 14px/1.2 var(--font-en);
}

.lookup {
  position: absolute;
  z-index: 3;
  left: 38%;
  top: -34px;
  width: 230px;
  padding: 14px 16px;
  border-radius: 22px;
  border-bottom-left-radius: 6px;
  background: #fff;
  box-shadow: var(--shadow);
}

.lookup b {
  font: 900 22px/1.2 var(--font-en);
}

.lookup i {
  margin-left: 6px;
  font-style: normal;
  font-size: 14px;
  color: var(--ink-2);
}

.lookup p {
  margin: 4px 0 10px !important;
  font-size: 15px;
}

.lookup p em {
  margin-right: 6px;
  color: var(--ink-2);
}

.lookup .add {
  display: inline-flex;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--mint-2);
  color: var(--g-ink);
  font-size: 13px;
  font-weight: 600;
}

.score {
  position: absolute;
  z-index: 3;
  right: -18px;
  bottom: -44px;
  width: 280px;
  padding: 14px 16px;
  border-radius: 22px;
  border-top-right-radius: 6px;
  background: #fff;
  box-shadow: var(--shadow);
}

.score h4 {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
}

.score h4 b {
  font: 900 30px/1 var(--font-en);
  color: var(--g-ink);
}

.score p {
  font: 800 17px/1.5 var(--font-en);
}

.score .ok {
  color: var(--g-ink);
}

.score .mid {
  color: #d98a00;
  text-decoration: underline wavy #f0b44a;
  text-underline-offset: 4px;
}

.vchips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.vchips span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 15px;
  font-weight: 600;
}

/* ---------- 怎么学 ---------- */
.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.steps svg.path {
  position: absolute;
  z-index: 0;
  left: 12%;
  right: 12%;
  top: 34px;
  width: 76%;
  height: 60px;
}

.step {
  position: relative;
  z-index: 1;
  text-align: center;
}

.step .n {
  position: relative;
  display: grid;
  place-items: center;
  width: 92px;
  height: 92px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--shadow);
  color: var(--g-ink);
  font: 700 38px/1 var(--font-round);
}

.step .n::after {
  content: attr(data-i);
  position: absolute;
  right: -4px;
  top: -4px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--sun);
  color: var(--sun-ink);
  font: 900 14px/30px var(--font-en);
}

.step h3 {
  margin-bottom: 8px;
  font-family: var(--font-round);
  font-size: 24px;
}

.step p {
  max-width: 18em;
  margin: 0 auto !important;
  color: var(--ink-2);
  font-size: 16px;
}

.streak-note {
  display: table;
  margin: 40px auto 0 !important;
  padding: 10px 20px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 15px;
}

/* ---------- 家长：周报 ---------- */
.parents {
  position: relative;
  overflow: hidden;
  padding: 80px 64px;
  border-radius: var(--radius-panel);
  background: linear-gradient(160deg, #fff6da 0%, #fffaf0 60%);
}

.parents::after {
  content: "";
  position: absolute;
  z-index: 0;
  right: -80px;
  top: -80px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(255, 212, 92, 0.35);
}

.parents > * {
  position: relative;
  z-index: 1;
}

.report {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  padding: 22px 22px 18px;
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 40px 70px -40px rgba(110, 80, 0, 0.45);
  font-size: 14px;
  transform: rotate(-1.5deg);
}

.rp-h {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px dashed #eadfbf;
}

.rp-h img {
  width: 46px;
  height: 46px;
}

.rp-h b {
  display: block;
  font-family: var(--font-round);
  font-size: 19px;
}

.rp-h small {
  font-size: 12.5px;
  color: var(--ink-2);
}

.rp-h .tag {
  margin-left: auto;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--sun-soft);
  color: var(--sun-ink);
  font-size: 12px;
  font-weight: 600;
}

.rp-kpi {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 14px 0;
}

.rp-kpi div {
  padding: 10px;
  border-radius: 14px;
  background: var(--mint);
  text-align: center;
}

.rp-kpi b {
  display: block;
  font: 900 22px/1.1 var(--font-en);
  color: var(--g-ink);
}

.rp-kpi small {
  font-size: 11.5px;
  color: var(--ink-2);
}

.rp-week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  align-items: end;
  height: 74px;
  margin: 6px 0 4px;
}

.rp-week i {
  display: block;
  border-radius: 6px 6px 3px 3px;
  background: var(--g);
}

.rp-week i.off {
  height: 6px !important;
  background: #e8efe9;
}

.rp-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 12px;
  text-align: center;
  font-size: 11px;
  color: var(--ink-2);
}

.rp-row {
  padding: 9px 0;
  border-top: 1px solid #f1ecdc;
}

.rp-row small {
  display: block;
  margin-bottom: 2px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--ink-2);
}

.rp-row p {
  font-size: 13.5px;
  line-height: 1.6;
}

.rp-row .w {
  font-family: var(--font-en);
  font-weight: 800;
  color: var(--red);
}

.rp-sum {
  margin-top: 8px !important;
  padding: 10px 12px;
  border-radius: 14px;
  background: var(--sun-soft);
  font-size: 13.5px;
}

.rp-foot {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed #eadfbf;
  font-size: 12px;
  color: var(--ink-2);
}

.rp-foot img {
  width: 44px;
  height: 44px;
  margin-left: auto;
}

/* ---------- 放心用 ---------- */
.trust {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.tr {
  padding: 24px 20px;
  border-radius: var(--radius-card);
  background: #fff;
  border: 1px solid var(--line);
}

.tr i {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  margin-bottom: 16px;
  border-radius: 16px;
  background: var(--mint-2);
  color: var(--g-ink);
}

.tr i svg,
.tr-wide i svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tr h3 {
  margin-bottom: 6px;
  font-size: 18px;
}

.tr p {
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.65;
}

.trust-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}

.tr-wide {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 24px;
  border-radius: var(--radius-card);
  background: var(--ink);
  color: #fff;
}

.tr-wide i {
  display: grid;
  flex: none;
  place-items: center;
  width: 50px;
  height: 50px;
  border-radius: 16px;
  background: rgba(127, 240, 195, 0.16);
  color: #7ff0c3;
}

.tr-wide b {
  display: block;
  font-size: 17px;
}

.tr-wide span {
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.75);
}

.tr-wide a {
  color: #7ff0c3;
}

/* ---------- 常见问题 + 家长交流群 ---------- */
.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 28px;
  align-items: start;
}

.faq {
  display: grid;
  gap: 12px;
}

.faq details {
  padding: 0 24px;
  border-radius: 22px;
  background: #fff;
  border: 1px solid var(--line);
}

.faq summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 0;
  list-style: none;
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary .q {
  display: grid;
  flex: none;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  border-bottom-left-radius: 4px;
  background: var(--g);
  color: #fff;
  font: 900 15px/1 var(--font-en);
}

.faq summary::after {
  content: "";
  flex: none;
  width: 12px;
  height: 12px;
  margin-left: auto;
  border-right: 2.5px solid var(--ink-2);
  border-bottom: 2.5px solid var(--ink-2);
  transform: rotate(45deg) translateY(-4px);
  transition: transform 0.2s ease;
}

.faq details[open] summary::after {
  transform: rotate(-135deg) translateY(-2px);
}

.faq details p {
  padding: 0 0 22px 48px;
  color: var(--ink-2);
  font-size: 16px;
}

.community {
  position: sticky;
  top: calc(var(--nav-h) + 20px);
  padding: 28px 26px 26px;
  border-radius: var(--radius-card);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  text-align: center;
}

.community .c-mascot {
  width: 86px;
  height: 86px;
  margin: -6px auto 6px;
}

.community h3 {
  font-family: var(--font-round);
  font-size: 23px;
}

.community .c-desc {
  margin-top: 8px;
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.7;
}

.community .c-qr {
  width: 184px;
  margin: 18px auto 0;
  padding: 10px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: #fff;
}

.community .c-qr img {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
}

.community .c-tip {
  margin-top: 10px;
  font-size: 13px;
  color: var(--ink-2);
}

.community .c-kf {
  display: none;
  width: 100%;
  margin-top: 16px;
}

.community .c-kf[hidden] {
  display: none !important;
}

/* ---------- 下载 ---------- */
.cta {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: center;
  overflow: visible;
  padding: 72px 64px;
  border-radius: var(--radius-panel);
  color: #fff;
  background:
    radial-gradient(50% 80% at 85% 50%, rgba(120, 240, 190, 0.4), transparent 60%),
    linear-gradient(155deg, #1cc28b, var(--g-deep) 55%, #06876a);
}

.cta h2 {
  font-family: var(--font-round);
  font-size: clamp(34px, 4.4vw, 56px);
  line-height: 1.15;
}

.cta .sub2 {
  margin-top: 12px !important;
  font-size: 18px;
  color: rgba(255, 255, 255, 0.9);
}

.cta .mascot-sm {
  justify-self: center;
  width: 260px;
  height: auto;
  filter: drop-shadow(0 26px 26px rgba(0, 60, 40, 0.3));
  animation: bob 6s ease-in-out infinite;
}

.search-tip {
  margin-top: 16px !important;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
}

.search-tip span {
  white-space: nowrap;
}

.m-apk {
  display: block;
  margin-top: 8px;
  text-align: center;
  font-size: 13px;
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.m-apk:hover {
  color: #fff;
}

.m-apk[hidden] {
  display: none;
}

/* ---------- 平板 / 手机 ---------- */
@media (max-width: 1080px) {
  .hero .wrap {
    grid-template-columns: 1fr;
  }
  .stage {
    width: 100%;
    max-width: 520px;
    height: 460px;
    margin: 0 auto;
  }
  .trio .wrap,
  .cast,
  .levels {
    grid-template-columns: 1fr;
  }
  .split,
  .split.rev {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .split.rev > :first-child {
    order: 0;
  }
  .trust {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats div:nth-child(3) {
    border-left: 0;
  }
  .stats div:nth-child(n + 3) {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .community {
    position: static;
    max-width: 520px;
    width: 100%;
    margin: 0 auto;
  }
  .cta {
    grid-template-columns: 1fr;
  }
  .cta .mascot-sm {
    display: none;
  }
  .panel,
  .parents {
    padding: 56px 32px;
  }
}

@media (max-width: 640px) {
  .hero-shell {
    padding: 4px 10px 0;
  }
  .hero {
    padding: 36px 0 110px;
    border-radius: 30px;
  }
  .badge .long {
    display: none;
  }
  .hero h1 {
    margin: 18px 0;
    font-size: 44px;
  }
  .pill {
    padding: 6px 12px 6px 8px;
    font-size: 14px;
  }
  .pill i {
    width: 22px;
    height: 22px;
  }
  .lede {
    font-size: 16px;
  }
  .dl,
  .harmony-line {
    display: none;
  }
  .m-dl {
    display: block;
    margin-top: 26px;
  }
  .m-dl .m-main {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 56px;
    border-radius: 999px;
    background: #fff;
    color: var(--ink);
    font-size: 18px;
    font-weight: 700;
    box-shadow: 0 14px 26px -16px rgba(0, 50, 35, 0.8);
  }
  .m-dl .m-main svg {
    width: 22px;
    height: 22px;
  }
  .m-dl .m-note {
    margin-top: 10px !important;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.85);
  }
  .hook {
    justify-content: center;
    font-size: 13px;
  }
  .stage {
    height: 360px;
  }
  .stage .glow {
    width: 300px;
    height: 300px;
    margin: -150px 0 0 -150px;
  }
  .stage .mascot {
    width: 230px;
    margin: -100px 0 0 -112px;
  }
  .bubble {
    max-width: 220px;
    padding: 10px 12px;
    border-radius: 18px;
    font-size: 14px;
  }
  .b-mia {
    top: 0;
    left: 0;
  }
  .b-mia img {
    width: 32px;
    height: 32px;
  }
  .b-order {
    top: 150px;
    right: 0;
    max-width: 170px;
  }
  .b-fix {
    bottom: 6px;
    left: 0;
    font-size: 14px;
  }
  .lv-a1 {
    right: 20px;
    top: 70px;
    width: 52px;
    height: 52px;
    font-size: 15px;
  }
  .lv-b1 {
    display: none;
  }
  .trio {
    margin-top: -70px;
  }
  .trio .wrap {
    gap: 10px;
  }
  .t-card {
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 4px 14px;
    padding: 18px;
  }
  .t-card .t-ico {
    grid-row: span 2;
    width: 44px;
    height: 44px;
    margin: 0;
    border-radius: 14px;
  }
  .t-card .t-ico svg {
    width: 22px;
    height: 22px;
  }
  .t-card h3 {
    margin: 0;
    font-size: 19px;
  }
  .t-card p {
    font-size: 14px;
  }
  .t-card .more,
  .t-card::after {
    display: none;
  }
  section.blk {
    padding-top: 84px;
  }
  .head {
    margin-bottom: 36px;
  }
  .head p,
  .split .desc {
    font-size: 16px;
  }
  .cast {
    display: flex;
    gap: 14px;
    margin: 0 -16px;
    padding: 0 16px 6px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }
  .cast::-webkit-scrollbar {
    display: none;
  }
  .c-card {
    flex: 0 0 84%;
    scroll-snap-align: center;
  }
  .phone {
    margin-bottom: -50px;
    transform: scale(0.92);
    transform-origin: top center;
  }
  .pz-call {
    flex-direction: column;
    align-items: center;
    padding-left: 0;
  }
  .remember {
    display: none;
  }
  .review {
    position: relative;
    right: auto;
    bottom: auto;
    width: 236px;
    margin: -170px auto 0;
    transform: rotate(1.5deg);
  }
  .float-card {
    font-size: 12px;
  }
  .levels {
    margin-top: 48px;
  }
  .stats div {
    padding: 20px;
  }
  .stats b {
    font-size: 34px;
  }
  .panel,
  .parents {
    padding: 44px 20px;
    border-radius: 30px;
  }
  .modes {
    gap: 8px;
  }
  .modes span {
    width: 46px;
    height: 46px;
    border-radius: 15px;
    font-size: 19px;
  }
  .o1,
  .o2,
  .o3 {
    display: none;
  }
  .lookup {
    left: auto;
    right: 6px;
    top: -60px;
    width: 200px;
  }
  .score {
    position: relative;
    right: auto;
    bottom: auto;
    width: 100%;
    margin: 14px auto 0;
  }
  .sub {
    bottom: 48px;
  }
  .sub p {
    font-size: 17px;
  }
  .sub small {
    font-size: 12px;
  }
  .vctl span {
    padding: 4px 9px;
    font-size: 11px;
  }
  .steps {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .steps svg.path {
    display: none;
  }
  .trust,
  .trust-2 {
    grid-template-columns: 1fr;
  }
  .tr {
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 2px 14px;
    padding: 18px;
  }
  .tr i {
    grid-row: span 2;
    width: 44px;
    height: 44px;
    margin: 0;
    border-radius: 14px;
  }
  .tr h3 {
    margin: 0;
    font-size: 17px;
  }
  .faq details {
    padding: 0 18px;
  }
  .faq summary {
    padding: 16px 0;
    font-size: 16px;
  }
  .faq details p {
    padding-left: 0;
    font-size: 15px;
  }
  .community .c-kf {
    display: inline-flex;
  }
  .cta {
    padding: 48px 24px;
    border-radius: 30px;
    text-align: center;
  }
}

/* 电脑浏览器窗口拉窄时（鼠标设备）仍给扫码下载，不出手机用的大按钮 */
@media (max-width: 640px) and (hover: hover) and (pointer: fine) {
  .dl {
    display: flex;
  }
  .m-dl {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bubble,
  .stage .mascot,
  .cta .mascot-sm {
    animation: none;
  }
  .rv {
    opacity: 1;
    transform: none;
    transition: none;
  }
}