/* 数算AGENT 官网：暗色品牌风，纯 CSS，不依赖外网字体 */

/* 思源黑体（Noto Sans SC，SIL OFL 1.1 可免费商用），只截了页面用到的字，见 tools/font-subset.py；没截到的字落回系统字体 */
@font-face {
  font-family: "Noto Sans SC Site";
  src: url("../fonts/noto-sans-sc.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --bg: #08090c;
  --bg-2: #0d0f14;
  --panel: #11141a;
  --panel-2: #171b22;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --fill: rgba(255, 255, 255, 0.04);
  --fill-2: rgba(255, 255, 255, 0.08);
  --glass: rgba(12, 14, 19, 0.58);
  --text: #f5f7fa;
  --text-2: #b6bcc6;
  --text-3: #8b929e;
  --brand: #6468f0;
  --brand-2: #a5b4fc;
  --brand-3: #4f46e5;
  --brand-a: rgba(100, 104, 240, 0.14);
  --hot: #6468f0;
  --warm: #38bdf8;
  --rise: #c9d3e1;
  --ok: #4ade80;
  --radius: 20px;
  --radius-sm: 12px;
  --gutter: 24px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --font: "Noto Sans SC Site", -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei UI",
    "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-num: "SF Pro Display", "Segoe UI Variable Display", "Segoe UI", "Helvetica Neue", Arial, var(--font);
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

/* 整页一层很细的颗粒，压掉大面积纯色的塑料感 */
body::after {
  position: fixed;
  inset: 0;
  z-index: 200;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .7 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
  content: "";
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  text-wrap: pretty;
  word-break: keep-all;
  overflow-wrap: break-word;
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

h1,
h2,
h3,
p,
ul,
ol,
dl {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--brand-2);
  outline-offset: 3px;
  border-radius: 6px;
}

::selection {
  background: rgba(100, 104, 240, 0.4);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.skip {
  position: fixed;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-size: 14px;
  transition: top 0.2s;
}

.skip:focus {
  top: 12px;
}

.br-sm {
  display: none;
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition:
    transform 0.2s var(--ease),
    background-color 0.2s,
    border-color 0.2s,
    box-shadow 0.25s;
}

.btn:active {
  transform: translateY(1px) scale(0.99);
}

/* 主按钮白底黑字，颜色只留给背景里的光 */
.btn--primary {
  color: #0d1117;
  background: #f5f7fa;
  box-shadow:
    inset 0 -1px 0 rgba(0, 0, 0, 0.12),
    0 8px 28px -12px rgba(255, 255, 255, 0.45);
}

.btn--primary:hover {
  background: #fff;
  box-shadow:
    inset 0 -1px 0 rgba(0, 0, 0, 0.12),
    0 10px 36px -10px rgba(255, 255, 255, 0.6);
}

.btn--ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line-2);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.24);
}

.btn--sm {
  height: 36px;
  padding: 0 14px;
  font-size: 14px;
  border-radius: 10px;
}

.btn--lg {
  height: 54px;
  padding: 0 26px;
  font-size: 16px;
  border-radius: 14px;
}

.btn--block {
  width: 100%;
}

/* 还没有安装包的系统，按钮只是个状态，不能点 */
.btn.is-soon {
  pointer-events: none;
}

.btn--ghost.is-soon {
  color: var(--text-2);
}

.btn .i {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.btn .i--arrow {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.2s var(--ease);
}

.btn:hover .i--arrow {
  transform: translateX(3px);
}

/* ---------- 导航：滚动后收成悬浮胶囊 ---------- */

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  padding-top: 0;
  transition: padding-top 0.35s var(--ease);
}

.nav__inner {
  display: flex;
  align-items: center;
  height: 68px;
  gap: 32px;
  border: 1px solid transparent;
  border-radius: 999px;
  transition:
    max-width 0.45s var(--ease),
    height 0.35s var(--ease),
    padding 0.35s var(--ease),
    background-color 0.35s,
    border-color 0.35s,
    box-shadow 0.35s;
}

.nav.is-solid,
.nav.is-open {
  padding-top: 12px;
}

.nav.is-solid .nav__inner,
.nav.is-open .nav__inner {
  max-width: 1040px;
  height: 56px;
  padding-inline: 22px 8px;
  border-color: var(--line-2);
  background: rgba(12, 14, 19, 0.66);
  -webkit-backdrop-filter: saturate(160%) blur(20px);
  backdrop-filter: saturate(160%) blur(20px);
  box-shadow: 0 16px 40px -20px rgba(0, 0, 0, 0.8);
}

.nav__brand img {
  width: 132px;
  height: auto;
}

.nav__links {
  display: flex;
  gap: 2px;
  margin-inline: auto;
}

.nav__links a {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 14.5px;
  color: var(--text-2);
  transition:
    color 0.2s,
    background-color 0.2s;
}

.nav__links a:hover,
.nav__links a.is-on {
  color: var(--text);
  background: var(--fill-2);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav .btn--sm {
  border-radius: 999px;
}

.nav__toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: var(--fill);
  cursor: pointer;
}

.nav__toggle span {
  position: absolute;
  left: 12px;
  right: 12px;
  height: 1.6px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.25s var(--ease);
}

.nav__toggle span:first-child {
  top: 15px;
}

.nav__toggle span:last-child {
  top: 22px;
}

.nav.is-open .nav__toggle span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav.is-open .nav__toggle span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.nav__sheet {
  display: none;
}

/* ---------- 首屏 ---------- */

.hero {
  position: relative;
  padding: 168px 0 0;
  isolation: isolate;
}

/* 文案居中：大标题、一句说明、两个下载 */
.hero__copy {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero__title {
  font-size: clamp(42px, 6.4vw, 92px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.hero__title .line {
  display: block;
}

/* 标题逐字从模糊里浮出来 */
.js .bt {
  display: inline-block;
  opacity: 0;
  filter: blur(12px);
  transform: translateY(-0.28em);
  animation: blur-in 0.9s var(--ease) forwards;
  animation-delay: calc(var(--c) * 45ms + 120ms);
}

@keyframes blur-in {
  55% {
    opacity: 0.6;
    filter: blur(4px);
    transform: translateY(0.04em);
  }
  to {
    opacity: 1;
    filter: none;
    transform: none;
  }
}

.hero__lead {
  max-width: 680px;
  margin-top: 28px;
  font-size: 20px;
  line-height: 1.7;
  color: var(--text-2);
}

.hero__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 20px 32px;
  margin-top: 40px;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 首屏入场 */
.js .hero [data-rise] {
  animation: rise 1s var(--ease) both;
  animation-delay: calc(var(--i, 0) * 90ms + 80ms);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(22px);
    filter: blur(6px);
  }
  to {
    opacity: 1;
    transform: none;
    filter: none;
  }
}

/* ---------- 首屏产品窗口 + 运营助理 ---------- */

.hero__stage {
  position: relative;
  margin-top: 96px;
  overflow-x: clip;
}

/* 窗口身后一束从上往下打的光，顶上最亮，衬出窗口上沿 */
.hero__stage::before {
  position: absolute;
  top: -160px;
  left: 50%;
  z-index: -1;
  width: min(1500px, 130%);
  height: 820px;
  background:
    radial-gradient(36% 30% at 50% 26%, rgba(129, 140, 248, 0.28), transparent 72%),
    radial-gradient(60% 50% at 50% 34%, rgba(100, 104, 240, 0.12), transparent 76%);
  transform: translateX(-50%);
  pointer-events: none;
  content: "";
}

/* 窗口比正文宽一档 */
.hero__frame {
  position: relative;
  max-width: 1328px;
}

/* 首屏窗口：真实的桌面端截图，下半截渐隐进页面；随鼠标按深度视差 */
.hwin {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border-radius: 14px 14px 0 0;
  background: #1f1f1f;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.1),
    0 -20px 80px -30px rgba(129, 140, 248, 0.5);
  -webkit-mask-image: linear-gradient(#000 80%, transparent);
  mask-image: linear-gradient(#000 80%, transparent);
  transform: translate(calc(var(--px, 0) * var(--depth, 0) * 1px), calc(var(--py, 0) * var(--depth, 0) * 1px));
}

/* 窗口上沿接住光的一道亮线 */
.hwin::after {
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(199, 210, 254, 0.8), transparent);
  pointer-events: none;
  content: "";
}

.hwin__shot {
  display: block;
  width: 100%;
  height: auto;
}

.js .hwin {
  animation: hwin-in 1s var(--ease) both;
  animation-delay: var(--delay, 0.4s);
}

@keyframes hwin-in {
  from {
    opacity: 0;
    translate: 0 22px;
  }
}

/* 运营助理：浮在窗口右下角，比窗口离人更近，视差更大 */
@property --beam {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

/* 宽屏往窗口外探出 32px；屏幕不够宽时收回来，至少离屏幕边 16px */
.hbot {
  position: absolute;
  right: calc(var(--gutter) - min(32px, max(0px, (100vw - 1328px) / 2 + var(--gutter) - 16px)));
  bottom: 18%;
  z-index: 3;
  width: 380px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(27, 30, 38, 0.94), rgba(15, 17, 22, 0.96));
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  box-shadow:
    0 48px 90px -30px rgba(0, 0, 0, 0.85),
    0 0 70px -20px rgba(100, 104, 240, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transform: translate(calc(var(--px, 0) * var(--depth, 0) * 1px), calc(var(--py, 0) * var(--depth, 0) * 1px));
}

/* 回话时边框上有一道光绕着走 */
.hbot::before {
  position: absolute;
  inset: -1px;
  padding: 1px;
  border-radius: inherit;
  background: conic-gradient(
    from var(--beam),
    transparent 0 64%,
    rgba(165, 180, 252, 0.2) 76%,
    #c7d2fe 88%,
    #fff 90%,
    transparent 92%
  );
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.6s;
  animation: beam 2.2s linear infinite;
  pointer-events: none;
  content: "";
}

.hbot.is-busy::before {
  opacity: 1;
}

@keyframes beam {
  to {
    --beam: 360deg;
  }
}

.js .hbot {
  animation: hwin-in 1s var(--ease) both;
  animation-delay: 0.9s;
}

.hbot__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 10px;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}

.hbot__ava {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: rgba(100, 104, 240, 0.18);
}

.hbot__ava img {
  width: 22px;
  height: 22px;
}

.hbot__name {
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.4;
}

.hbot__sub {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--text-3);
}

.hbot__sub .live {
  width: 6px;
  height: 6px;
}

.hbot__body {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
}

.hbot .msg--me {
  padding: 7px 12px;
  font-size: 13px;
}

.hbot__reply p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-2);
}

.hbot__reply b {
  font-weight: 600;
  color: var(--brand-2);
}

.hbot__topic {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding: 8px;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.hbot__topic img {
  width: 40px;
  height: 53px;
  border-radius: 7px;
  object-fit: cover;
}

.hbot__t {
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}

.hbot__m {
  margin-top: 2px;
  font-size: 11.5px;
  color: var(--text-3);
}

.hbot__acts {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
}

.js [data-hbot-step] {
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 0.5s var(--ease),
    transform 0.5s var(--ease);
}

.js [data-hbot-step].is-in {
  opacity: 1;
  transform: none;
}

/* 打字中：三个点占在回复的位置上 */
.hbot__typing {
  position: absolute;
  left: 16px;
  bottom: 16px;
  display: flex;
  gap: 4px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  opacity: 0;
  transition: opacity 0.3s;
}

.hbot__typing.is-in {
  opacity: 1;
}

.hbot__typing i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-2);
  animation: typing 1s ease-in-out infinite;
}

.hbot__typing i:nth-child(2) {
  animation-delay: 0.15s;
}

.hbot__typing i:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes typing {
  50% {
    opacity: 0.3;
    transform: translateY(-3px);
  }
}

/* 小画面里通用的零件：发送键、标签、小按钮 */
.ask__send {
  display: grid;
  place-items: center;
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #f5f7fa;
}

.ask__send svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: #0d1117;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.badge {
  display: inline-flex;
  align-items: center;
  flex: none;
  height: 20px;
  padding: 0 7px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}

.badge--hot {
  background: rgba(100, 104, 240, 0.16);
  color: #a5b4fc;
}

.badge--warm {
  background: rgba(56, 189, 248, 0.14);
  color: #67d4f0;
}

.badge--rise {
  background: rgba(201, 211, 225, 0.1);
  color: #c9d3e1;
}

.badge--brand {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.badge--line {
  border: 1px solid var(--line-2);
  color: var(--text-2);
  font-weight: 500;
}

.mini-btn {
  display: inline-flex;
  align-items: center;
  flex: none;
  height: 26px;
  padding: 0 11px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
}

.mini-btn--solid {
  border-color: transparent;
  background: #f5f7fa;
  color: #0d1117;
  font-weight: 600;
}

/* ---------- 通用区块 ---------- */

.section {
  position: relative;
  padding: 168px 0;
}

/* 隔一个区块垫一层浅一档的底色，不加线不加光，只靠深浅分开 */
.section--tint {
  --sec-bg: var(--bg-2);
  background: var(--bg-2);
}

.head {
  max-width: 720px;
}

.head--center {
  margin: 0 auto;
  text-align: center;
}

/* 独占一行的版块标题居中，像发布会一页一个标题；分栏里的标题仍靠左 */
.container:not(.faq__wrap) > .head {
  max-width: 880px;
  margin-inline: auto;
  text-align: center;
}

.container:not(.faq__wrap) > .head .head__lead {
  max-width: 640px;
  margin-inline: auto;
}

/* 标题下面还挂一段说明或付费周期切换 */
.head--split {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.head--split > .head__lead {
  margin-top: 24px;
}

.head--split > .billing {
  margin-top: 40px;
}

/* 版块名称就是大标题，一眼知道这块讲什么；下面一句灰字说给你什么 */
.head h2 {
  font-size: clamp(40px, 5.2vw, 72px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.head__sub {
  margin-top: 16px;
  text-wrap: balance;
  font-size: clamp(21px, 2.3vw, 32px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--text-2);
}

.cta h2 {
  font-size: clamp(32px, 4.6vw, 64px);
  font-weight: 600;
  line-height: 1.16;
  letter-spacing: -0.04em;
}

/* 一屏只说一句话：大字白，下面一行小一号浅灰 */
.statement {
  text-align: center;
}

.statement h2 {
  font-size: clamp(30px, 4.2vw, 60px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.statement__dim {
  display: block;
  margin-top: 0.7em;
  font-size: 0.5em;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: -0.01em;
  color: var(--text-2);
}

/* 一墙同行作品：铺满整屏宽，几排缓缓流过，两头渐隐；鼠标停在哪排哪排就停 */
.wall {
  margin: 72px calc(50% - 50vw) 0;
}

.wall__rows {
  display: grid;
  gap: 14px;
  margin-block: -24px;
  padding-block: 24px;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 14%, #000 86%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 14%, #000 86%, transparent);
}

.wall__row {
  display: flex;
  gap: 14px;
  width: max-content;
  animation: marquee var(--d) linear var(--o) infinite;
}

.wall__row--back {
  animation-direction: reverse;
}

.wall.is-paused .wall__row,
.wall__row:hover {
  animation-play-state: paused;
}

/* 一墙只有一个焦点：日常帖是很淡的一行字，同行爆款稍亮一点，正在换题的那条才有框、有光 */
.post {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.22);
  transition:
    color 0.4s var(--ease),
    background-color 0.4s var(--ease),
    border-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease);
}

.post b {
  font-weight: 400;
}

.post.is-hit b {
  font-weight: 600;
}

.post em {
  font-size: 12.5px;
  font-style: normal;
  opacity: 0.7;
}

.post.is-hit {
  color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
}

.post i {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-style: normal;
  font-weight: 600;
  transition:
    color 0.4s var(--ease),
    background-color 0.4s var(--ease);
}

/* 下面正在换题的那一条 */
.post.is-on {
  border-color: var(--brand-2);
  background: rgba(100, 104, 240, 0.22);
  color: var(--text);
  box-shadow:
    0 0 0 4px rgba(100, 104, 240, 0.14),
    0 0 36px rgba(100, 104, 240, 0.35);
}

.post.is-on em {
  color: var(--brand-2);
  opacity: 1;
}

.post.is-on i {
  background: var(--brand);
  color: #fff;
}

/* 亮的那条照它的写法换成你的题：小字说来源，大字是题 */
.pick {
  display: grid;
  max-width: 920px;
  margin: 56px auto 0;
  padding-inline: var(--gutter);
  text-align: center;
}

.pick__item {
  grid-area: 1 / 1;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition:
    opacity 0.25s var(--ease),
    transform 0.25s var(--ease),
    visibility 0s linear 0.25s;
}

.pick__item.is-on {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition:
    opacity 0.5s var(--ease) 0.1s,
    transform 0.5s var(--ease) 0.1s,
    visibility 0s;
}

.pick__item span {
  display: block;
  font-size: 15px;
  color: var(--text-3);
}

.pick__item b {
  display: block;
  margin-top: 10px;
  font-size: clamp(20px, 2.3vw, 30px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--text);
}

.head__lead {
  margin-top: 24px;
  text-wrap: balance;
  font-size: 19px;
  line-height: 1.7;
  color: var(--text-2);
}

.head__lead a {
  color: var(--brand-2);
  border-bottom: 1px solid rgba(165, 180, 252, 0.4);
}

/* 滚动出现 */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 1.1s var(--ease),
    transform 1.2s var(--ease);
  transition-delay: calc(var(--i, 0) * 80ms);
}

.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 工作方式：六个页签自动轮播，点哪步看哪步 ---------- */

.flow__tabs {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-top: 56px;
}

.flow__tab {
  position: relative;
  padding: 18px 0 0;
  border: 0;
  border-top: 2px solid var(--line-2);
  background: none;
  font: inherit;
  text-align: left;
  color: var(--text-2);
  cursor: pointer;
  transition: color 0.3s;
}

.flow__tab span {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-num);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-3);
  transition: color 0.3s;
}

.flow__tab b {
  display: block;
  font-size: 17px;
  font-weight: 600;
}

.flow__tab:hover,
.flow__tab.is-on {
  color: var(--text);
}

.flow__tab.is-on span {
  color: var(--brand-2);
}

/* 页签上沿的进度条：轮播时从左走到右，走完换下一步 */
.flow__tab::after {
  position: absolute;
  top: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand-2);
  content: "";
}

.flow__tab.is-on::after {
  width: 100%;
}

.flow__wrap.is-auto .flow__tab.is-on::after {
  animation: flow-bar 3s linear both;
}

.flow__wrap.is-paused .flow__tab.is-on::after {
  animation-play-state: paused;
}

@keyframes flow-bar {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

.flow__panel {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  align-items: center;
  gap: 72px;
  margin-top: 48px;
}

/* 六段说明叠在同一格里，切换时高度不跳 */
.flow__copy {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.flow__text {
  grid-area: 1 / 1;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition:
    opacity 0.2s var(--ease),
    transform 0.25s var(--ease),
    visibility 0s 0.25s;
}

.flow__text.is-on {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition:
    opacity 0.35s var(--ease) 0.05s,
    transform 0.45s var(--ease) 0.05s,
    visibility 0s;
}

.flow__text h3 {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.03em;
}

.flow__text p {
  max-width: 440px;
  margin-top: 16px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-2);
}

.screen {
  position: relative;
  height: 470px;
  border: 1px solid var(--line-2);
  border-radius: 24px;
  background:
    radial-gradient(90% 60% at 80% 0%, rgba(100, 104, 240, 0.14), transparent 60%),
    linear-gradient(180deg, #12151b, #0b0d11);
  box-shadow:
    0 40px 100px -40px rgba(0, 0, 0, 0.9),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
  overflow: hidden;
}

.scr {
  position: absolute;
  inset: 0;
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.985);
  transition:
    opacity 0.5s var(--ease),
    transform 0.6s var(--ease),
    visibility 0s 0.6s;
}

.scr.is-on {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition:
    opacity 0.5s var(--ease) 0.08s,
    transform 0.6s var(--ease) 0.08s,
    visibility 0s;
}

.scr__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.scr__title {
  font-size: 16px;
  font-weight: 600;
}

.scr__note {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  color: var(--text-3);
}

.scr__foot {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 13px;
  color: var(--text-2);
}

.live {
  position: relative;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
}

.live::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1.5px solid var(--ok);
  animation: ping 1.8s var(--ease) infinite;
}

@keyframes ping {
  from {
    opacity: 0.8;
    transform: scale(0.5);
  }
  to {
    opacity: 0;
    transform: scale(1.4);
  }
}

.dotok {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
}

.seg {
  display: inline-flex;
  padding: 3px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 12.5px;
}

.seg b,
.seg i {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 8px;
  font-style: normal;
  font-weight: 500;
  color: var(--text-3);
}

.seg b {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.seg img {
  border-radius: 4px;
}

.seg--plat {
  width: 100%;
}

.seg--plat b,
.seg--plat i {
  flex: 1;
  justify-content: center;
  padding-block: 7px;
}

.search {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  font-size: 14px;
}

.search svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--text-3);
  stroke-width: 1.6;
  stroke-linecap: round;
}

.acc-list {
  display: grid;
  margin-top: 12px;
}

.acc {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 13px 4px;
  border-bottom: 1px solid var(--line);
}

.acc:last-child {
  border-bottom: 0;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.acc__body {
  min-width: 0;
}

.acc__name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.acc__meta {
  margin-top: 3px;
  font-size: 12px;
  color: var(--text-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chart {
  position: relative;
  height: 196px;
  padding: 0 0 0 44px;
  border-bottom: 1px solid var(--line);
}

.chart__axis span {
  position: absolute;
  left: 0;
  font-family: var(--font-num);
  font-size: 11px;
  color: var(--text-3);
  transform: translateY(50%);
}

.chart__axis span:nth-child(1) {
  bottom: 88%;
  color: #a5b4fc;
}

.chart__axis span:nth-child(2) {
  bottom: 62%;
  color: #67d4f0;
}

.chart__axis span:nth-child(3) {
  bottom: 42%;
  color: #c9d3e1;
}

.chart__bars {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 100%;
}

.chart__bars i {
  flex: 1;
  height: var(--v);
  border-radius: 5px 5px 2px 2px;
  background: rgba(255, 255, 255, 0.1);
  transform-origin: bottom;
}

.scr.is-on .chart__bars i {
  animation: grow 0.9s var(--ease) both;
}

.scr.is-on .chart__bars i:nth-child(n + 6) {
  animation-delay: 0.12s;
}

.scr.is-on .chart__bars i:nth-child(n + 9) {
  animation-delay: 0.24s;
}

@keyframes grow {
  from {
    transform: scaleY(0.1);
  }
}

.chart__bars i.rise {
  background: linear-gradient(180deg, #c9d3e1, rgba(201, 211, 225, 0.25));
}

.chart__bars i.warm {
  background: linear-gradient(180deg, #67d4f0, rgba(56, 189, 248, 0.25));
}

.chart__bars i.hot {
  background: linear-gradient(180deg, #a5b4fc, rgba(100, 104, 240, 0.3));
  box-shadow: 0 0 30px -4px rgba(100, 104, 240, 0.7);
}

.chart__line {
  position: absolute;
  left: 44px;
  right: 0;
  border-top: 1px dashed;
  opacity: 0.5;
}

.chart__line--hot {
  bottom: 88%;
  border-color: #a5b4fc;
}

.chart__line--warm {
  bottom: 62%;
  border-color: #67d4f0;
}

.chart__line--rise {
  bottom: 42%;
  border-color: #c9d3e1;
}

.chart__mid {
  position: absolute;
  right: 0;
  bottom: calc(26% + 4px);
  font-size: 11px;
  color: var(--text-3);
}

.chart::after {
  content: "";
  position: absolute;
  left: 44px;
  right: 0;
  bottom: 26%;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.feed {
  display: grid;
  margin-top: 8px;
}

.feed li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}

.feed img {
  flex: none;
  width: 30px;
  height: 40px;
  border-radius: 5px;
  object-fit: cover;
}

.feed__t {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.feed li:last-child {
  border-bottom: 0;
}

.feed em {
  margin-left: auto;
  font-size: 12px;
  font-style: normal;
  color: var(--text-3);
  white-space: nowrap;
}

.anatomy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.anat {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
}

.scr.is-on .anat {
  animation: pop 0.6s var(--ease) both;
}

.scr.is-on .anat:nth-child(2) {
  animation-delay: 0.1s;
}

.scr.is-on .anat:nth-child(3) {
  animation-delay: 0.2s;
}

.scr.is-on .anat:nth-child(4) {
  animation-delay: 0.3s;
}

@keyframes pop {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}

.anat__k {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 6px;
  background: rgba(100, 104, 240, 0.18);
  color: #c7d2fe;
  font-size: 12px;
  font-weight: 600;
}

.anat p {
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-2);
}

.paste {
  padding: 16px 18px;
  border: 1px dashed var(--line-2);
  border-radius: 14px;
}

.paste__label {
  font-size: 12px;
  color: var(--text-3);
}

.paste p {
  margin-top: 4px;
  font-size: 15px;
  font-weight: 600;
}

.arrow-down {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 14px 0;
  font-size: 12.5px;
  color: var(--brand-2);
}

.arrow-down svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.opts {
  display: grid;
  gap: 10px;
}

.opts li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 14px;
  color: var(--text-2);
}

.opts li.is-pick {
  border-color: rgba(165, 180, 252, 0.6);
  background: rgba(100, 104, 240, 0.1);
  color: var(--text);
}

.radio {
  flex: none;
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--line-2);
  border-radius: 50%;
}

.is-pick .radio {
  border: 5px solid var(--brand);
  background: #fff;
}

.make {
  display: grid;
  grid-template-columns: 196px 1fr;
  gap: 24px;
}

.phone-mini {
  padding: 6px;
  border: 1px solid var(--line-2);
  border-radius: 22px;
  background: #090a0e;
}

.phone-mini__screen {
  position: relative;
  aspect-ratio: 9 / 16;
  border-radius: 17px;
  overflow: hidden;
  background:
    radial-gradient(60% 40% at 50% 38%, rgba(199, 210, 254, 0.85), transparent 70%),
    radial-gradient(80% 60% at 30% 80%, rgba(129, 140, 248, 0.5), transparent 70%),
    linear-gradient(180deg, #1e2a3d, #0e131c);
}

.phone-mini__screen img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 封面底下压一层暗色，字幕才看得清 */
.phone-mini__screen::after {
  position: absolute;
  inset: 45% 0 0;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.72));
  content: "";
}

.phone-mini__cap {
  z-index: 1;
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 30px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
}

.phone-mini__bar {
  z-index: 1;
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 14px;
  height: 3px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.25);
  overflow: hidden;
}

.phone-mini__bar i {
  display: block;
  height: 100%;
  width: 40%;
  background: #fff;
}

.scr.is-on .phone-mini__bar i {
  animation: play 6s linear infinite;
}

@keyframes play {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

.make__side {
  min-width: 0;
}

.make__k {
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-3);
}

.make__k:first-child {
  margin-top: 0;
}

.make__t {
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-2);
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.shots {
  display: flex;
  gap: 3px;
  margin-top: 8px;
}

.shots i {
  flex: 0 1 var(--w);
  min-width: 0;
  height: 40px;
  border-radius: 6px;
  background: linear-gradient(160deg, rgba(165, 180, 252, 0.5), rgba(100, 104, 240, 0.15));
  border: 1px solid rgba(165, 180, 252, 0.25);
}

.shots i:nth-child(3n + 2) {
  background: linear-gradient(160deg, rgba(56, 189, 248, 0.45), rgba(100, 104, 240, 0.12));
  border-color: rgba(56, 189, 248, 0.25);
}

.shots i:nth-child(3n) {
  background: linear-gradient(160deg, rgba(201, 211, 225, 0.4), rgba(201, 211, 225, 0.1));
  border-color: rgba(201, 211, 225, 0.25);
}

.make__meta {
  margin-top: 12px;
  font-size: 12.5px;
  color: var(--text-2);
}

.pub {
  display: grid;
  gap: 4px;
}

.pub li {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0 8px 32px;
  font-size: 14px;
  color: var(--text-3);
}

.pub li::before {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1.5px solid var(--line-2);
  background-position: center;
  background-repeat: no-repeat;
  background-size: 11px;
}

.pub li.done {
  color: var(--text-2);
}

.pub li.done::before {
  border-color: transparent;
  background-color: rgba(74, 222, 128, 0.2);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10'%3E%3Cpath d='M2 5.2l2 2 4-4.4' fill='none' stroke='%2386efac' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.pub li.wait {
  color: var(--text);
  font-weight: 600;
}

.pub li.wait::before {
  border-color: var(--brand);
  background-color: rgba(100, 104, 240, 0.3);
  box-shadow: 0 0 0 5px rgba(100, 104, 240, 0.15);
  animation: breathe 1.8s ease-in-out infinite;
}

@keyframes breathe {
  50% {
    box-shadow: 0 0 0 9px rgba(100, 104, 240, 0.05);
  }
}

.pub li.wait span {
  font-size: 12px;
  font-weight: 400;
  color: var(--brand-2);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.stats div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.025);
}

.stats span,
.stats em {
  display: block;
  font-size: 11.5px;
  font-style: normal;
  color: var(--text-3);
}

.stats b {
  display: block;
  margin: 4px 0 2px;
  font-family: var(--font-num);
  font-size: 22px;
}

/* ---------- 数字员工 ---------- */

.agent__wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
}

/* 左栏和对话窗口一样高：标题顶着窗口上沿，四项能力一列压到底，最后一根线和窗口下沿齐平 */
.agent__copy {
  display: flex;
  flex-direction: column;
}

.caps {
  margin-top: auto;
  padding-top: 40px;
}

.caps li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.caps li:last-child {
  border-bottom: 1px solid var(--line);
}

.caps__ico {
  display: grid;
  place-items: center;
  flex: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  background: rgba(100, 104, 240, 0.1);
}

.caps__ico svg,
.trust__ico svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: var(--brand-2);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.caps h3 {
  font-size: 17px;
  font-weight: 600;
}

.caps p {
  margin-top: 2px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-2);
}

.chat {
  display: flex;
  flex-direction: column;
  height: 664px;
  border: 1px solid var(--line-2);
  border-radius: 24px;
  background:
    radial-gradient(80% 50% at 0% 0%, rgba(100, 104, 240, 0.14), transparent 60%),
    linear-gradient(180deg, #12151b, #0b0d11);
  box-shadow:
    0 40px 100px -40px rgba(0, 0, 0, 0.9),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
  overflow: hidden;
}

.chat__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}

.chat__ava {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(100, 104, 240, 0.18);
}

.chat__name {
  font-size: 15px;
  font-weight: 600;
}

.chat__sub {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-3);
}

.chat__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px;
  overflow: hidden;
}

.js [data-chat-step] {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 0.5s var(--ease),
    transform 0.5s var(--ease);
}

.js [data-chat-step].is-in {
  opacity: 1;
  transform: none;
}

.msg {
  max-width: 88%;
  font-size: 14px;
  line-height: 1.7;
}

.msg--me {
  align-self: flex-end;
  padding: 10px 14px;
  border-radius: 14px 14px 4px 14px;
  background: #f5f7fa;
  color: #0d1117;
}

.msg--bot {
  align-self: flex-start;
  width: 88%;
  color: var(--text-2);
}

.steps-run {
  display: grid;
  gap: 2px;
  margin-top: 10px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
}

.steps-run li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 0;
  font-size: 13px;
}

.steps-run li::before {
  content: "";
  flex: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
}

.steps-run li.ok::before {
  background: rgba(74, 222, 128, 0.2)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10'%3E%3Cpath d='M2 5.2l2 2 4-4.4' fill='none' stroke='%2386efac' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    center / 9px no-repeat;
}

.steps-run li.run {
  color: var(--text);
}

.steps-run li.run::before {
  border: 1.6px solid rgba(165, 180, 252, 0.25);
  border-top-color: var(--brand-2);
  animation: spin 0.9s linear infinite;
}

.steps-run li.run.is-done::before {
  border: 0;
  animation: none;
  background: rgba(74, 222, 128, 0.2)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10'%3E%3Cpath d='M2 5.2l2 2 4-4.4' fill='none' stroke='%2386efac' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    center / 9px no-repeat;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.steps-run em {
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 12px;
  font-style: normal;
  color: var(--text-3);
}

.card-prod {
  display: flex;
  gap: 14px;
  width: 88%;
  padding: 12px;
  border: 1px solid var(--line-2);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
}

.card-prod__thumb {
  flex: none;
  width: 54px;
  height: 72px;
  border-radius: 8px;
  object-fit: cover;
}

.card-prod__body {
  flex: 1;
  min-width: 0;
}

.card-prod__title {
  font-size: 14px;
  font-weight: 600;
}

.card-prod__meta {
  margin-top: 2px;
  font-size: 12px;
  color: var(--text-3);
}

.progress {
  height: 4px;
  margin-top: 12px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.progress i {
  display: block;
  width: 0;
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  transition: width 0.3s linear;
}

.confirm {
  width: 88%;
  padding: 14px;
  border: 1px solid rgba(165, 180, 252, 0.45);
  border-radius: 14px;
  background: rgba(100, 104, 240, 0.1);
}

.confirm__title {
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.6;
}

.confirm__actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
}

.chat__input {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 16px 16px;
  height: 50px;
  padding: 0 8px 0 16px;
  border: 1px solid var(--line-2);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  font-size: 13.5px;
  color: var(--text-3);
}

.chat__input span:first-child {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------- 视频图片 ---------- */

.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 64px;
}

.tile {
  position: relative;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012) 60%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
  isolation: isolate;
}

/* 鼠标跟随：卡内一团柔光，边框靠近鼠标的一段亮起来 */
[data-spot]::before,
[data-spot]::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

[data-spot]::before {
  z-index: -1;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, -40%), rgba(100, 104, 240, 0.1), transparent 60%);
}

[data-spot]::after {
  z-index: 2;
  padding: 1px;
  background: radial-gradient(
    240px circle at var(--mx, 50%) var(--my, -40%),
    rgba(199, 210, 254, 0.95),
    rgba(100, 104, 240, 0.5) 35%,
    transparent 70%
  );
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask:
    linear-gradient(#000 0 0) content-box exclude,
    linear-gradient(#000 0 0);
}

[data-spot]:hover::before,
[data-spot]:hover::after {
  opacity: 1;
}

.tile--wide {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 32px;
}

.tile__k {
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-2);
}

.tile h3 {
  margin-top: 10px;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.4;
}

.tile p:not(.tile__k) {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-2);
}

.timeline {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

.timeline__row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
}

.timeline__label {
  font-size: 11.5px;
  color: var(--text-3);
}

.wave {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 38px;
}

.wave i {
  flex: 1;
  height: 30%;
  border-radius: 2px;
  background: linear-gradient(180deg, #c9d3e1, rgba(201, 211, 225, 0.35));
}

.wave i:nth-child(3n) {
  height: 70%;
}

.wave i:nth-child(4n + 1) {
  height: 48%;
}

.wave i:nth-child(5n + 2) {
  height: 90%;
}

.wave i:nth-child(7n) {
  height: 18%;
}

.clips,
.subs {
  display: flex;
  gap: 3px;
}

.clips i {
  display: flex;
  align-items: flex-end;
  flex: 0 1 var(--w);
  height: 52px;
  padding: 0 6px 5px;
  border-radius: 7px;
  background: linear-gradient(160deg, hsl(var(--h) var(--s, 80%) 62% / 0.75), hsl(var(--h) var(--s, 80%) 40% / 0.3));
  border: 1px solid hsl(var(--h) var(--s, 80%) 72% / 0.3);
  min-width: 0;
  font-size: 10.5px;
  font-style: normal;
  color: rgba(255, 255, 255, 0.85);
  white-space: nowrap;
  overflow: hidden;
}

.subs i {
  flex: 0 1 var(--w);
  min-width: 0;
  height: 14px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.14);
}

.timeline__head {
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: calc(62px + (100% - 80px) * var(--p, 0));
  width: 2px;
  border-radius: 2px;
  background: #fff;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.7);
}

[data-timeline] .wave i {
  opacity: 0.35;
  transition: opacity 0.25s;
}

[data-timeline] .wave i.is-on {
  opacity: 1;
}

[data-timeline] .clips i {
  transition:
    transform 0.35s var(--ease),
    box-shadow 0.35s var(--ease);
}

[data-timeline] .clips i.is-on {
  transform: translateY(-3px);
  box-shadow:
    0 8px 18px rgba(0, 0, 0, 0.35),
    inset 0 0 0 1px rgba(255, 255, 255, 0.5);
}

[data-timeline] .subs i {
  transition: background 0.3s;
}

[data-timeline] .subs i.is-on {
  background: var(--brand-2);
}

.swap {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.swap__ref {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: 10px;
  box-shadow: 0 0 0 1px var(--line-2);
  overflow: hidden;
}

.swap__ref img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.swap__ref span {
  position: absolute;
  inset: auto 0 0;
  padding: 18px 8px 6px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
  font-size: 11.5px;
  color: #fff;
}

.swap__slots {
  display: grid;
  gap: 8px;
}

.tile .swap__slots p {
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin: 0;
  padding: 0 12px;
  border: 1px dashed rgba(165, 180, 252, 0.28);
  border-radius: 10px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-3);
}

.swap__slots b {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-2);
}

.js .swap__slots.is-live p.is-on {
  border-style: solid;
  border-color: rgba(199, 210, 254, 0.4);
  background: rgba(100, 104, 240, 0.08);
}

.js .swap__slots.is-live p.is-on b {
  color: var(--text);
}

.marquee {
  display: grid;
  gap: 8px;
  margin: 24px -30px 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 14%, #000 86%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 14%, #000 86%, transparent);
}

.marquee__row {
  display: flex;
  gap: 8px;
  width: max-content;
}

.is-in .marquee__row {
  animation: marquee 34s linear infinite;
}

.is-in .marquee__row--back {
  animation-direction: reverse;
  animation-duration: 40s;
}

[data-marquee]:hover .marquee__row {
  animation-play-state: paused;
}

@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

.marquee__item {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 10px;
  height: 52px;
  padding: 0 16px 0 6px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.025);
  font-size: 13.5px;
  color: var(--text-2);
  white-space: nowrap;
}

.marquee__item i {
  width: 30px;
  height: 40px;
  border-radius: 7px;
  background:
    radial-gradient(60% 40% at 50% 30%, rgba(255, 255, 255, 0.45), transparent 70%),
    linear-gradient(160deg, var(--a), var(--b));
}

[data-rows] > p {
  transition:
    opacity 0.5s var(--ease),
    border-color 0.5s var(--ease),
    background 0.5s var(--ease);
}

.js [data-rows].is-live > p {
  opacity: 0.6;
}

.js [data-rows].is-live > p.is-on {
  opacity: 1;
}

.profile {
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
}

.tile .profile p {
  display: flex;
  gap: 12px;
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--text);
}

.tile .profile p:first-child {
  border-top: 0;
}

.profile span {
  flex: none;
  width: 56px;
  color: var(--text-3);
}

/* ---------- 多端同步：左边台面，右边说明 ---------- */

/* 电脑窗口往左探出去，窄屏时别撑出横向滚动 */
.devices {
  overflow-x: clip;
}

.devices__wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  align-items: center;
  gap: 88px;
}

/* 台面：电脑窗口垫在后面往下渐隐，小程序对话立在前面 */
.devices__stage {
  position: relative;
  height: 680px;
}

.devices__stage::before {
  content: "";
  position: absolute;
  inset: 12% -6% 0 24%;
  background: radial-gradient(50% 46% at 58% 52%, rgba(100, 104, 240, 0.26), transparent 72%);
  pointer-events: none;
}

.devices__pc {
  position: absolute;
  top: 132px;
  left: -16%;
  width: 108%;
  border-radius: 12px;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.1),
    0 30px 60px -20px rgba(0, 0, 0, 0.7);
  opacity: 0.85;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 22%), linear-gradient(#000 40%, transparent 92%);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(90deg, transparent, #000 22%), linear-gradient(#000 40%, transparent 92%);
  mask-composite: intersect;
}

.devices__pc img {
  display: block;
  width: 100%;
  height: auto;
}

/* 手机：照小程序运营助理对话页，暗底 #0b0b12、香槟金主按钮、员工头像金色圆 */
.mini {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  width: 320px;
  height: 680px;
  border: 9px solid #050508;
  border-radius: 50px;
  background: #0b0b12;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.16),
    0 50px 90px -30px rgba(0, 0, 0, 0.9),
    0 0 120px -30px rgba(100, 104, 240, 0.45);
  overflow: hidden;
  color: #edeaf2;
}

.mini__status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 38px;
  padding: 6px 26px 0 30px;
  font-size: 12px;
  font-weight: 600;
}

/* 电池 */
.mini__status i {
  width: 22px;
  height: 11px;
  border: 1px solid rgba(237, 234, 242, 0.5);
  border-radius: 3px;
  background: linear-gradient(90deg, #edeaf2 72%, transparent 72%) 1px 1px / calc(100% - 2px) calc(100% - 2px) no-repeat;
}

.mini__nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 40px;
}

.mini__nav p {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 13.5px;
}

.mini__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #3de0a0;
  box-shadow: 0 0 0 2px rgba(61, 224, 160, 0.18);
}

/* 微信右上角胶囊 */
.mini__capsule {
  position: absolute;
  right: 8px;
  display: flex;
  align-items: center;
  width: 76px;
  height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.2);
}

.mini__capsule i {
  flex: 1;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 4'%3E%3Ccircle cx='2' cy='2' r='1.6' fill='%23edeaf2'/%3E%3Ccircle cx='8' cy='2' r='1.9' fill='%23edeaf2'/%3E%3Ccircle cx='14' cy='2' r='1.6' fill='%23edeaf2'/%3E%3C/svg%3E")
    center / 16px 4px no-repeat;
}

.mini__capsule i + i {
  border-left: 1px solid rgba(255, 255, 255, 0.16);
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='8' cy='8' r='6' fill='none' stroke='%23edeaf2' stroke-width='1.6'/%3E%3Ccircle cx='8' cy='8' r='2.4' fill='%23edeaf2'/%3E%3C/svg%3E")
    center / 15px 15px no-repeat;
}

/* 返回箭头 */
.mini__nav::before {
  content: "";
  position: absolute;
  left: 16px;
  width: 9px;
  height: 9px;
  border-left: 1.6px solid #edeaf2;
  border-bottom: 1.6px solid #edeaf2;
  transform: rotate(45deg);
}

.mini__thread {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 8px 12px;
  overflow: hidden;
}

.mini__opening {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 10px;
  color: #55536a;
}

.mini__opening img,
.mini__acc img {
  border-radius: 3px;
}

.mini__row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.mini__row--me {
  justify-content: flex-end;
}

.mini__bubble {
  display: grid;
  gap: 7px;
  padding: 9px 11px;
  border-radius: 3px 11px 11px 11px;
  background: linear-gradient(160deg, #1c1a26, #151420);
  font-size: 12px;
  line-height: 1.65;
}

.mini__bubble--me {
  max-width: 80%;
  border-radius: 11px 3px 11px 11px;
  background: linear-gradient(160deg, rgba(246, 228, 166, 0.22), rgba(200, 162, 76, 0.16));
}

.mini__ava {
  display: grid;
  flex: none;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f6e4a6, #c8a24c);
}

.mini__ava svg {
  width: 15px;
  height: 15px;
  fill: #1a160b;
}

.mini__col {
  display: grid;
  flex: 1;
  gap: 8px;
  min-width: 0;
}

.mini__steps {
  padding: 3px 8px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.04);
}

.mini__steps p {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 24px;
  font-size: 11px;
  color: #a8a5b5;
}

.mini__steps i {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #3de0a0
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M3.4 6.2l1.8 1.8 3.5-3.6' fill='none' stroke='%230b0b12' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    center / contain no-repeat;
}

.mini__steps em {
  margin-left: auto;
  font-style: normal;
  color: #8a8796;
}

/* 待确认的卡片：金色细边，同小程序 confirm--open */
.mini__confirm {
  padding: 11px;
  border-radius: 10px;
  background: linear-gradient(160deg, #1c1a26, #151420);
  box-shadow: inset 0 0 0 1px rgba(231, 200, 122, 0.5);
}

.mini__ct {
  font-size: 12px;
  font-weight: 700;
}

.mini__acc {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
  font-size: 10.5px;
  color: #8a8796;
}

.mini__sum {
  margin-top: 7px;
  padding: 6px 8px;
  border-radius: 5px;
  background: rgba(0, 0, 0, 0.25);
  font-size: 11px;
  line-height: 1.6;
  color: #a8a5b5;
}

.mini__ask {
  margin-top: 9px;
  font-size: 11px;
  color: #a8a5b5;
}

.mini__btns {
  display: flex;
  gap: 7px;
  margin-top: 7px;
}

.mini__btns span {
  display: grid;
  flex: 1;
  place-items: center;
  height: 30px;
  border-radius: 15px;
  background: linear-gradient(160deg, #23212e, #17161f);
  font-size: 11.5px;
  color: #a8a5b5;
}

.mini__btns .is-yes {
  background: linear-gradient(135deg, #f6e4a6, #c8a24c);
  color: #1a160b;
  font-weight: 700;
}

.mini__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px 26px;
  background: #0e0e15;
  box-shadow: 0 -6px 20px rgba(0, 0, 0, 0.25);
  position: relative;
}

.mini__bar span {
  flex: 1;
  height: 32px;
  padding: 0 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.07);
  font-size: 11.5px;
  line-height: 32px;
  color: #55536a;
}

.mini__bar i {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
}

/* 底部横条 */
.mini__bar::after {
  content: "";
  position: absolute;
  bottom: 8px;
  left: 50%;
  width: 100px;
  height: 4px;
  margin-left: -50px;
  border-radius: 2px;
  background: rgba(237, 234, 242, 0.55);
}

/* 进到视口后，对话一条条出来 */
.js .mini__row,
.js .mini__confirm {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 0.6s var(--ease),
    transform 0.6s var(--ease);
}

.js .is-in .mini__row,
.js .is-in .mini__confirm {
  opacity: 1;
  transform: none;
}

.js .is-in .mini__row--me {
  transition-delay: 0.5s;
}

.js .is-in .mini__row + .mini__row {
  transition-delay: 1.2s;
}

.js .is-in .mini__confirm {
  transition-delay: 1.9s;
}

.devices__list {
  margin-top: 44px;
}

.devices__list > div {
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.devices__list h3 {
  font-size: 17px;
  font-weight: 600;
}

.devices__list .ticks {
  margin-top: 14px;
}

.ticks {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.ticks li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-2);
}

.ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 14px;
  height: 14px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Cpath d='M3 7.3l2.6 2.6L11 4.4' fill='none' stroke='%23a5b4fc' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    center / contain no-repeat;
}

.ticks b {
  color: var(--text);
  font-family: var(--font-num);
}

/* ---------- 安心 ---------- */

.trust__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 64px;
}

.trust__item {
  padding: 4px 32px;
  border-left: 1px solid var(--line);
}

.trust__item:first-child {
  padding-left: 0;
  border-left: 0;
}

.trust__item:last-child {
  padding-right: 0;
}

.trust__ico {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(100, 104, 240, 0.12);
}

.trust__ico svg {
  width: 20px;
  height: 20px;
}

.trust__item h3 {
  margin-top: 20px;
  font-size: 17px;
  font-weight: 600;
}

.trust__item p {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-2);
}

/* ---------- 价格 ---------- */

.billing {
  display: flex;
  justify-self: end;
  width: max-content;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
}

.billing button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 18px;
  border: 0;
  border-radius: 9px;
  background: none;
  font-size: 14px;
  color: var(--text-2);
  cursor: pointer;
  transition:
    background-color 0.2s,
    color 0.2s;
}

.billing button[aria-selected="true"] {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  font-weight: 600;
}

.billing button span {
  padding: 0 6px;
  border-radius: 5px;
  background: rgba(74, 222, 128, 0.16);
  color: #86efac;
  font-size: 11.5px;
  font-weight: 600;
}

.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: stretch;
  gap: 16px;
  margin-top: 56px;
}

.plan {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.012) 60%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

/* 主推档位：一道光沿着边框转圈 */
@property --spin {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

.plan--hot {
  border-color: transparent;
  background:
    radial-gradient(100% 50% at 50% 0%, rgba(100, 104, 240, 0.16), transparent 70%) padding-box,
    linear-gradient(var(--panel), var(--panel)) padding-box,
    conic-gradient(
        from var(--spin),
        transparent 0deg 250deg,
        rgba(100, 104, 240, 0.9) 300deg,
        #e0e7ff 330deg,
        transparent 360deg
      )
      border-box,
    linear-gradient(var(--line-2), var(--line-2)) border-box;
  box-shadow: 0 30px 80px -40px rgba(100, 104, 240, 0.55);
  animation: spin-border 6s linear infinite;
}

@keyframes spin-border {
  to {
    --spin: 360deg;
  }
}

/* 手机上横着滑时才用到的圆点，宽屏三档摆得开不显示 */
.plans__dots {
  display: none;
}

.plan__flag {
  position: absolute;
  top: -12px;
  left: 30px;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--brand);
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}

.plan__name {
  font-size: 18px;
  font-weight: 700;
}

.plan__for {
  margin-top: 4px;
  font-size: 14px;
  color: var(--text-3);
}

.plan__price {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-top: 24px;
  font-family: var(--font-num);
}

.plan__price em {
  font-size: 20px;
  font-style: normal;
  font-weight: 600;
}

.plan__price strong {
  font-size: 50px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

.plan__price span {
  margin-left: 4px;
  font-family: var(--font);
  font-size: 14px;
  color: var(--text-3);
}

.plan__note {
  min-height: 22px;
  margin: 8px 0 24px;
  font-size: 13px;
  color: #67d4f0;
}

.plan:first-child .plan__note {
  color: var(--text-3);
}

.plan .ticks {
  margin-top: 26px;
}

/* ---------- 常见问题 ---------- */

.faq__wrap {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 72px;
}

.faq__list {
  border-top: 1px solid var(--line);
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  position: relative;
  padding: 22px 44px 22px 0;
  font-size: 17px;
  font-weight: 600;
  list-style: none;
  cursor: pointer;
}

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

.faq summary::after {
  content: "";
  position: absolute;
  right: 4px;
  top: 50%;
  width: 22px;
  height: 22px;
  margin-top: -11px;
  border-radius: 50%;
  background:
    rgba(255, 255, 255, 0.06)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M6 2.5v7M2.5 6h7' stroke='%23aca6a3' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E")
    center / 12px no-repeat;
  transition: transform 0.3s var(--ease);
}

.faq details[open] summary::after {
  transform: rotate(45deg);
}

.faq summary:hover {
  color: #fff;
}

.faq details p {
  padding: 0 44px 24px 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-2);
  word-break: normal;
}

/* ---------- 收尾：下载 ---------- */

/* 底下一层很淡的品牌色晕，和首屏呼应 */
.cta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  text-align: center;
}

.cta::before {
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 100%;
  background: radial-gradient(50% 60% at 50% 100%, rgba(100, 104, 240, 0.14), transparent 72%);
  pointer-events: none;
  content: "";
}

.cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-block: 168px 176px;
}

.cta__lead {
  text-wrap: balance;
  margin-top: 24px;
  font-size: 19px;
  line-height: 1.7;
  color: var(--text-2);
}

.cta__btns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 40px;
}

.cta__meta {
  margin-top: 18px;
  font-size: 13px;
  color: var(--text-3);
}

.cta__meta[hidden] {
  display: none;
}

/* ---------- 页脚：和正文同宽对齐，只用细线分隔 ---------- */

.footer {
  border-top: 1px solid var(--line);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  padding: 64px 0 56px;
}

.footer__brand img {
  width: 132px;
  height: auto;
}

.footer__brand p {
  margin-top: 14px;
  font-size: 14px;
  color: var(--text-3);
}

.footer__cols {
  display: flex;
  gap: 88px;
}

.footer__cols div {
  display: grid;
  align-content: start;
  gap: 10px;
}

.footer__h {
  margin-bottom: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
}

.footer__cols a {
  font-size: 14px;
  color: var(--text-3);
  transition: color 0.2s;
}

.footer__cols a:hover {
  color: var(--text);
}

.footer__base {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--text-3);
}

.footer__base a:hover {
  color: var(--text-2);
}

/* ---------- 右下角：在线客服、回到顶部 ---------- */

.dock {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition:
    opacity 0.3s var(--ease),
    transform 0.3s var(--ease);
}

.dock__btn {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--text-2);
  cursor: pointer;
  transition:
    color 0.2s,
    border-color 0.2s,
    background-color 0.2s,
    opacity 0.3s var(--ease),
    transform 0.3s var(--ease);
}

.dock__btn:hover,
.dock__cs.is-open .dock__btn {
  border-color: rgba(255, 255, 255, 0.24);
  background-color: rgba(23, 27, 34, 0.86);
  color: var(--text);
}

.dock__btn svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* 回到顶部：滚过首屏才出来 */
.dock__top {
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
}

.dock.is-scrolled .dock__top {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.dock__cs {
  position: relative;
}

.dock__cs[hidden] {
  display: none;
}

/* 客服二维码：鼠标放上去或点一下，在按钮左边弹出 */
.dock__panel {
  position: absolute;
  right: calc(100% + 12px);
  bottom: 0;
  display: grid;
  justify-items: center;
  gap: 10px;
  width: 196px;
  padding: 18px 18px 14px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  background: var(--panel);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateX(6px);
  transition:
    opacity 0.2s,
    transform 0.2s var(--ease),
    visibility 0.2s;
}

/* 鼠标从按钮挪到面板中间那 12px 不断开 */
.dock__panel::after {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 100%;
  width: 12px;
  content: "";
}

.dock__cs.is-open .dock__panel {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.dock__panel img {
  width: 160px;
  height: 160px;
  border-radius: 8px;
  background: #fff;
}

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

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {  .devices__wrap {
    gap: 48px;
  }

  .nav__links a {
    padding-inline: 9px;
  }

  .agent__wrap,
  .faq__wrap {
    gap: 48px;
  }

  .tile--wide {
    grid-template-columns: 1fr;
  }

  .trust__grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px 0;
  }

  .trust__item:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .trust__item:nth-child(even) {
    padding-right: 0;
  }
}

@media (max-width: 960px) {
  .nav__links {
    display: none;
  }

  .nav__toggle {
    display: block;
  }

  .nav__inner {
    justify-content: space-between;
  }

  .nav.is-solid .nav__inner,
  .nav.is-open .nav__inner {
    max-width: calc(100% - 24px);
    padding-inline: 16px 8px;
  }

  .nav.is-open .nav__sheet {
    display: grid;
    width: calc(100% - 24px);
    margin: 8px auto 0;
    padding: 4px 20px;
    border: 1px solid var(--line-2);
    border-radius: 20px;
    background: rgba(12, 14, 19, 0.92);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
  }

  .nav__sheet a {
    padding: 14px 4px;
    border-bottom: 1px solid var(--line);
    font-size: 16px;
    color: var(--text-2);
  }

  .nav__sheet a:last-child {
    border-bottom: 0;
  }

  .section {
    padding: 128px 0;
  }

  .flow__panel {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    margin-top: 36px;
  }

  .screen {
    height: 400px;
  }

  .agent__wrap {
    grid-template-columns: 1fr;
  }

  /* 多端同步：说明在上，台面在下居中 */
  .devices__wrap {
    grid-template-columns: minmax(0, 1fr);
  }

  .devices__copy {
    order: -1;
  }

  .devices__stage {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
  }

  .chat {
    height: 560px;
  }

  .bento {
    grid-template-columns: 1fr 1fr;
  }

  .tile--wide {
    grid-column: 1 / -1;
  }

  .plans {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .plan--hot {
    order: -1;
  }

  .faq__wrap {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  :root {
    --gutter: 16px;
  }

  .br-sm {
    display: inline;
  }

  .br-lg {
    display: none;
  }

  .hero {
    padding-top: 120px;
  }

  .hero__title {
    font-size: clamp(32px, 9.2vw, 42px);
  }

  .hero__lead {
    font-size: 16px;
  }

  .hero__bar {
    align-self: stretch;
  }

  .hero__cta,
  .hero__cta .btn {
    flex: 1 1 100%;
  }

  /* 窄屏放不下镜头名，只留色块 */
  .clips i {
    font-size: 0;
  }

  /* 首屏窗口：手机上换成推荐选题那一块截图；一屏一个焦点，运营助理不再压上去 */
  .hero__stage {
    margin-top: 48px;
  }

  .hwin {
    transform: none;
  }

  .hbot {
    display: none;
  }

  .section {
    padding: 72px 0;
  }

  /* 手机上版块标题一律靠左，和下面靠左的内容对齐 */
  .container:not(.faq__wrap) > .head {
    text-align: left;
  }

  .container:not(.faq__wrap) > .head .head__lead {
    margin-inline: 0;
  }

  .head--split {
    align-items: flex-start;
  }

  .head--split > .head__lead {
    margin-top: 16px;
  }

  .head--split > .billing {
    margin-top: 28px;
  }

  .head h2 {
    font-size: 34px;
  }

  .head__sub {
    margin-top: 8px;
    font-size: 18px;
  }

  .wall {
    margin-top: 48px;
  }

  .wall__rows,
  .wall__row {
    gap: 10px;
  }

  .post {
    gap: 8px;
    height: 38px;
    padding: 0 14px;
    font-size: 13px;
  }

  .post em {
    font-size: 11px;
  }

  .post i {
    padding: 1px 6px;
    font-size: 11px;
  }

  .pick {
    margin-top: 40px;
  }

  .pick__item span {
    font-size: 13px;
  }

  .head__lead,
  .cta__lead {
    font-size: 16px;
  }

  .screen {
    height: 360px;
    border-radius: 18px;
  }

  .scr {
    padding: 18px;
  }

  .scr__head {
    margin-bottom: 14px;
  }

  .acc:nth-child(n + 4),
  .feed li:nth-child(n + 3) {
    display: none;
  }

  .chart {
    height: 150px;
  }

  .anatomy {
    gap: 8px;
  }

  .anat {
    padding: 12px;
  }

  .anat p {
    margin-top: 6px;
    font-size: 12.5px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .opts li {
    padding: 11px 12px;
    font-size: 13px;
  }

  .opts li:nth-child(n + 3) {
    display: none;
  }

  .make {
    grid-template-columns: 120px 1fr;
    gap: 14px;
  }

  .make__t {
    -webkit-line-clamp: 3;
  }

  .pub li {
    padding-block: 5px;
    font-size: 13px;
  }

  .pub li:nth-child(-n + 2) {
    display: none;
  }

  .stats b {
    font-size: 18px;
  }

  /* 手机上六步照样一行排开：上面序号、下面步骤名，名字按屏宽缩到最长的「发布复盘」也放得下 */
  .flow__tabs {
    gap: 6px;
    margin-top: 32px;
  }

  .flow__tab {
    padding-block: 12px 10px;
  }

  .flow__tab span {
    margin-bottom: 4px;
    font-size: 12px;
  }

  .flow__tab b {
    font-size: min(14px, calc((100vw - 64px) / 24));
    white-space: nowrap;
  }

  .flow__panel {
    margin-top: 28px;
  }

  .flow__text h3 {
    font-size: 24px;
  }

  .flow__text p {
    margin-top: 12px;
    font-size: 15.5px;
  }

  .caps {
    padding-top: 28px;
  }

  .caps li {
    align-items: flex-start;
    padding: 16px 0;
  }

  .chat {
    height: auto;
    border-radius: 18px;
  }

  .msg--bot {
    max-width: 100%;
  }

  .msg--bot,
  .card-prod,
  .confirm {
    width: 100%;
  }

  .bento {
    grid-template-columns: 1fr;
    margin-top: 40px;
  }

  .tile {
    padding: 24px 20px;
  }

  .devices__stage {
    height: 520px;
  }

  .devices__pc {
    top: 80px;
  }

  .mini {
    right: auto;
    left: 50%;
    width: 300px;
    height: 620px;
    margin-left: -150px;
    scale: 0.84;
    transform-origin: 50% 0;
  }

  .tile--wide {
    grid-column: auto;
  }

  .trust__grid {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 40px;
  }

  .trust__item,
  .trust__item:nth-child(n) {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr);
    column-gap: 16px;
    padding: 20px 0;
    border-left: 0;
  }

  .trust__ico {
    grid-row: span 2;
    width: 36px;
    height: 36px;
    border-radius: 10px;
  }

  .trust__item h3 {
    margin-top: 6px;
    font-size: 16px;
  }

  .trust__item p {
    margin-top: 4px;
    font-size: 14.5px;
    line-height: 1.7;
  }

  .trust__item + .trust__item {
    border-top: 1px solid var(--line);
  }

  .billing button {
    padding: 0 14px;
  }

  .plans {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: 84%;
    gap: 12px;
    max-width: none;
    margin: 28px calc(var(--gutter) * -1) 0;
    padding: 14px var(--gutter) 4px;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .plans::-webkit-scrollbar {
    display: none;
  }

  .plan {
    padding: 26px 20px;
    scroll-snap-align: center;
  }

  .plan--hot {
    order: 0;
  }

  .plan__flag {
    left: 20px;
  }

  .plans__dots {
    display: flex;
    justify-content: center;
    margin-top: 12px;
  }

  /* 圆点本身 6px，按钮撑大到手指点得到 */
  .plans__dots button {
    padding: 10px 5px;
    border: 0;
    background: none;
    cursor: pointer;
  }

  .plans__dots button::before {
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 3px;
    background: var(--line-2);
    transition:
      width 0.3s var(--ease),
      background-color 0.3s;
    content: "";
  }

  .plans__dots button[aria-current="true"]::before {
    width: 18px;
    background: var(--text-2);
  }

  /* 横着藏在右边的档位等不到进视野，整排一起出来 */
  .js .plans > [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .faq summary {
    font-size: 16px;
  }

  .cta__inner {
    padding-block: 88px 96px;
  }

  .cta__btns {
    align-self: stretch;
  }

  .cta__btns .btn {
    flex: 1 1 100%;
  }

  .footer__inner {
    padding: 48px 0 40px;
  }

  .footer__cols {
    gap: 40px;
  }

  .footer__cols div {
    gap: 0;
  }

  .footer__h {
    margin-bottom: 6px;
  }

  .footer__cols a {
    padding-block: 9px;
  }

  /* 手机上整排滚过首屏才出来，不压首屏按钮；横着排只占一行高 */
  .dock {
    right: 16px;
    bottom: 16px;
    flex-direction: row;
  }

  /* 二维码改成往上弹 */
  .dock__panel {
    right: 0;
    bottom: calc(100% + 12px);
    transform: translateY(6px);
  }

  .dock:not(.is-scrolled) {
    opacity: 0;
    transform: translateY(8px);
    pointer-events: none;
  }

  /* 顶上导航一直挂着品牌字，页脚再来一个就重复了，只留口号 */
  .footer__brand img {
    display: none;
  }

  .footer__brand p {
    margin-top: 0;
  }

  /* 版权和备案号右边让出右下角按钮的位置，按钮停在它们旁边 */
  .footer__base {
    flex-direction: column;
    padding-right: 72px;
  }
}

@media (max-width: 400px) {
  /* 再窄账号名后面挂不下推荐标签，只留账号名 */
  .acc__name .badge {
    display: none;
  }

  .footer__cols {
    flex-wrap: wrap;
    gap: 28px 40px;
  }
}

/* ---------- 减少动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .wall__row {
    animation: none;
  }

  .js [data-reveal],
  .js [data-chat-step],
  .js .topic--new,
  .js .bt {
    opacity: 1;
    transform: none;
    filter: none;
  }
}