/* =========================================================
   缘梦 · 官网 landing —— 动态夜色版 v1.3（单屏 / 一个 viewport）
   深色夜景 + 荧光玫红光尘 + 真实陪伴社交
   ========================================================= */

:root {
  --brand: #E84884;
  --brand-bright: #FF7AB8;
  --brand-deep: #B62E69;
  --violet: #9A63FF;
  --live: #2DD8A6;
  --gold: #F3B35B;

  --bg-0: #100B15;
  --bg-1: #191020;
  --plum: #24172F;

  --ink-0: #FFFFFF;
  --ink-1: #F1EAF6;
  --ink-2: #C8BDD5;
  --ink-3: #8F849D;

  --glass: rgba(255, 255, 255, .07);
  --glass-2: rgba(255, 255, 255, .11);
  --glass-brd: rgba(255, 255, 255, .13);

  --brand-grad: linear-gradient(118deg, #FFF0F6 0%, #FF85BE 43%, #E84884 100%);
  --soft-panel: linear-gradient(145deg, rgba(255, 255, 255, .13), rgba(255, 255, 255, .045));

  --r-pill: 999px;
  --maxw: 1160px;
  --ease: cubic-bezier(.22, .61, .36, 1);

  --sh-soft: 0 22px 60px -34px rgba(0, 0, 0, .78);
  --sh-panel: 0 46px 112px -34px rgba(255, 84, 156, .6), 0 30px 80px -48px rgba(0, 0, 0, .9);
  --glow-pink: 0 0 28px rgba(255, 116, 188, .52);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body.night {
  margin: 0;
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  color: var(--ink-1);
  background: var(--bg-0);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ---------- 舞台 ---------- */
.stage {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding:
    clamp(16px, 3vh, 26px)
    clamp(20px, 5vw, 64px)
    clamp(14px, 2.4vh, 22px);
  isolation: isolate;
}

/* ---------- 动态夜色背景 ---------- */
.atmos { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.atmos::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(80% 62% at 18% 18%, rgba(232, 72, 132, .22), transparent 54%),
    radial-gradient(70% 58% at 80% 45%, rgba(154, 99, 255, .14), transparent 62%),
    radial-gradient(46% 44% at 76% 22%, rgba(45, 216, 166, .08), transparent 62%),
    linear-gradient(180deg, #20142A 0%, #15101C 52%, #0B090F 100%);
}
.atmos__sheen {
  position: absolute; inset: -12%;
  background:
    linear-gradient(110deg, transparent 0 34%, rgba(255, 110, 178, .16) 43%, rgba(255, 180, 220, .05) 50%, transparent 62%),
    linear-gradient(16deg, rgba(45, 216, 166, .045), transparent 40%);
  opacity: .75;
}
.atmos__flow {
  position: absolute; width: 52vmax; height: 52vmax; border-radius: 50%;
  filter: blur(46px);
  mix-blend-mode: screen;
  opacity: .32;
}
.atmos__flow--a {
  left: -18vmax; top: 8vh;
  background:
    radial-gradient(circle at 44% 46%, rgba(255, 94, 164, .42), transparent 42%),
    radial-gradient(circle at 64% 36%, rgba(255, 182, 218, .18), transparent 46%);
}
.atmos__flow--b {
  right: -20vmax; bottom: -16vmax;
  background:
    radial-gradient(circle at 42% 46%, rgba(154, 99, 255, .28), transparent 42%),
    radial-gradient(circle at 36% 56%, rgba(45, 216, 166, .16), transparent 44%);
}
.atmos__dust {
  position: absolute; inset: -10%;
  opacity: .52;
  background-image:
    radial-gradient(circle at 8% 24%, rgba(255, 122, 184, .46) 0 1.2px, transparent 2.8px),
    radial-gradient(circle at 31% 66%, rgba(255, 122, 184, .34) 0 1.4px, transparent 3px),
    radial-gradient(circle at 72% 20%, rgba(255, 215, 235, .3) 0 1.1px, transparent 2.8px),
    radial-gradient(circle at 84% 72%, rgba(45, 216, 166, .22) 0 1.2px, transparent 3px);
  background-size: 420px 280px, 520px 360px, 360px 300px, 470px 330px;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 12% 90%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 12% 90%, transparent 100%);
}
.atmos__rings {
  position: absolute; top: 36%; right: 20%; width: 47vmax; height: 47vmax;
  transform: translate(50%, -50%);
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 0 30%, rgba(255, 124, 182, .05) 30.3% 30.7%, transparent 31%) center / 100% 100%,
    radial-gradient(circle, transparent 0 45%, rgba(45, 216, 166, .032) 45.3% 45.7%, transparent 46%) center / 100% 100%,
    radial-gradient(circle, transparent 0 60%, rgba(255, 124, 182, .028) 60.3% 60.7%, transparent 61%) center / 100% 100%;
}
.atmos__grain {
  position: absolute; inset: 0; opacity: .2; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 150px 150px;
}

/* ---------- 状态点 ---------- */
.live {
  width: 8px; height: 8px; border-radius: 50%; flex: none;
  background: var(--live);
  box-shadow: 0 0 0 0 rgba(45, 216, 166, .46), 0 0 9px rgba(45, 216, 166, .86);
}

/* ---------- 顶部 ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex: none;
}
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink-0); }
.brand__logo { width: 36px; height: 36px; border-radius: 11px; box-shadow: 0 8px 24px -7px rgba(232, 72, 132, .78); }
.brand__name { font-size: 1.34rem; font-weight: 800; letter-spacing: 0; }
.brand__soon {
  font-size: .68rem; font-weight: 700; letter-spacing: 0;
  color: #F9E1EC; background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .13); padding: 3px 9px; border-radius: var(--r-pill); margin-left: 2px;
}
.online {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .82rem; color: var(--ink-2); font-weight: 500;
  background: rgba(255, 255, 255, .07);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .12);
  padding: 7px 15px; border-radius: var(--r-pill);
}

/* ---------- 主体 ---------- */
.hero { flex: 1 1 auto; display: flex; align-items: center; justify-content: center; padding: clamp(12px, 2.3vh, 34px) 0; }
.hero__inner {
  width: 100%; max-width: var(--maxw);
  display: grid;
  column-gap: clamp(34px, 5vw, 84px);
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  grid-template-areas:
    "copy     show"
    "features show"
    "cta      show"
    "trust    show";
  align-content: center;
}

.copy { grid-area: copy; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: .82rem; font-weight: 650; letter-spacing: 0; color: var(--ink-1);
  background: rgba(255, 255, 255, .08);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .12);
  padding: 8px 15px; border-radius: var(--r-pill);
  box-shadow: 0 18px 48px -34px rgba(255, 110, 178, .8);
}
.slogan {
  margin: clamp(14px, 2.2vh, 23px) 0 0;
  font-size: clamp(3.15rem, 7vw, 5.15rem);
  line-height: 1; font-weight: 800; letter-spacing: 0; color: var(--ink-0);
  text-shadow: 0 8px 44px rgba(255, 116, 188, .23);
}
.slogan .grad {
  background: var(--brand-grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 4px 24px rgba(255, 116, 188, .52));
}
.intro {
  margin: clamp(15px, 2.2vh, 21px) 0 0;
  font-size: clamp(1rem, 1.28vw, 1.12rem);
  line-height: 1.66; color: var(--ink-2); max-width: 36ch;
}

/* ---------- 三个成熟主卖点 ---------- */
.features {
  grid-area: features; list-style: none; margin: clamp(23px, 3.2vh, 32px) 0 0; padding: 0;
  width: min(620px, 100%);
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px;
}
.feat {
  --feat-rgb: 255, 122, 184;
  --feat-alt-rgb: 154, 99, 255;
  position: relative;
  min-height: 116px;
  padding: 15px 14px 14px;
  border-radius: 24px;
  overflow: hidden;
  color: rgb(var(--feat-rgb));
  background:
    radial-gradient(circle at 50% 0%, rgba(var(--feat-rgb), .22), transparent 58%),
    linear-gradient(180deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .045));
  box-shadow: var(--sh-soft), inset 0 1px 0 rgba(255, 255, 255, .12);
}
.feat:nth-child(2) { --feat-rgb: 45, 216, 166; --feat-alt-rgb: 255, 122, 184; }
.feat:nth-child(3) { --feat-rgb: 243, 179, 91; --feat-alt-rgb: 255, 122, 184; }
.feat::before {
  content: ""; position: absolute; inset: auto 16px -24px; height: 58px;
  background: radial-gradient(ellipse at center, rgba(var(--feat-rgb), .22), transparent 66%);
  opacity: .9;
}
.feat__icon {
  position: relative; z-index: 1;
  width: 58px; height: 58px; border-radius: 22px;
  display: grid; place-items: center;
  color: rgb(var(--feat-rgb));
  background:
    radial-gradient(circle at 32% 28%, rgba(255, 255, 255, .3), transparent 38%),
    linear-gradient(145deg, rgba(var(--feat-rgb), .28), rgba(var(--feat-alt-rgb), .13));
  box-shadow: 0 18px 34px -22px rgba(var(--feat-rgb), .95), inset 0 1px 0 rgba(255, 255, 255, .2);
}
.feat__svg { display: block; filter: drop-shadow(0 4px 12px rgba(var(--feat-rgb), .28)); }
.feat__svg .soft { fill: rgba(var(--feat-rgb), .18); }
.feat__copy { position: relative; z-index: 1; display: block; margin-top: 12px; }
.feat__copy strong { display: block; color: var(--ink-0); font-size: .94rem; line-height: 1.2; font-weight: 800; }
.feat__copy em { display: block; margin-top: 5px; color: var(--ink-3); font-size: .74rem; line-height: 1.45; font-style: normal; }

/* ---------- 测试下载 ---------- */
.cta {
  grid-area: cta; margin-top: clamp(21px, 2.8vh, 29px);
  position: relative;
  display: inline-flex; align-items: center; gap: 16px; width: min(510px, 100%);
  background:
    radial-gradient(circle at 12% 20%, rgba(255, 122, 184, .18), transparent 42%),
    linear-gradient(135deg, rgba(255, 255, 255, .13), rgba(255, 255, 255, .048));
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-radius: 24px; padding: 15px 18px 15px 15px;
  box-shadow: var(--sh-soft), inset 0 1px 0 rgba(255, 255, 255, .15);
  overflow: hidden;
}
.cta::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(92deg, rgba(255, 122, 184, .16), transparent 42%, rgba(45, 216, 166, .08));
  opacity: .78;
}
.qr {
  position: relative; z-index: 1; flex: none; width: clamp(78px, 7.8vw, 96px); aspect-ratio: 1;
  padding: 7px; background: #FBF7FB; border-radius: 18px;
  opacity: 1;
  box-shadow: 0 0 30px rgba(255, 92, 158, .25);
}
.qr__img { display: block; width: 100%; height: 100%; border-radius: 12px; }
.qr__logo {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 26px; height: 26px; border-radius: 8px;
  box-shadow: 0 0 0 3px #FBF7FB, 0 2px 6px -2px rgba(0, 0, 0, .32);
}
.qr__badge {
  position: absolute; left: 50%; bottom: -10px; transform: translateX(-50%);
  font-size: .64rem; font-weight: 800; color: #fff; background: var(--brand-grad);
  padding: 3px 10px; border-radius: var(--r-pill); white-space: nowrap; box-shadow: var(--glow-pink);
}
.cta__body { position: relative; z-index: 1; min-width: 0; }
.cta__status {
  display: inline-flex; align-items: center; gap: 5px;
  margin-bottom: 6px; padding: 4px 9px;
  font-size: .68rem; font-weight: 750; color: #FFE0EE;
  border-radius: var(--r-pill);
  background: rgba(255, 122, 184, .14);
}
.cta__status svg { color: var(--brand-bright); }
.cta__title { margin: 0; font-size: 1.12rem; font-weight: 800; letter-spacing: 0; color: var(--ink-0); }
.cta__sub { margin: 4px 0 0; font-size: .86rem; color: var(--ink-3); }
.stores { display: flex; flex-direction: column; align-items: stretch; gap: 9px; margin-top: 13px; }
.store {
  display: inline-flex; align-items: center; gap: 5px; font-size: .7rem; color: var(--ink-2);
  text-decoration: none; border: 0;
  background: rgba(255, 255, 255, .075); border-radius: 12px; padding: 7px 9px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08);
}
.store svg { color: var(--ink-3); }
.store em { color: var(--ink-3); font-style: normal; }
.store--android {
  color: #fff; justify-content: center; gap: 9px;
  padding: 14px 20px; border-radius: 15px;
  background: var(--brand-grad);
  box-shadow: var(--glow-pink), inset 0 1px 0 rgba(255, 255, 255, .22);
}
.store--android svg { color: #fff; width: 20px; height: 20px; }
.store--android span { font-size: .96rem; font-weight: 800; letter-spacing: .01em; }
.store--android em { color: rgba(255, 255, 255, .85); font-size: .72rem; font-weight: 600; }
.store--disabled { opacity: .6; justify-content: center; gap: 6px; padding: 9px 12px; font-size: .74rem; }

/* ---------- 安全保障弱化为底部可信线 ---------- */
.trust {
  grid-area: trust; list-style: none; margin: clamp(14px, 2vh, 20px) 0 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 10px 14px;
  font-size: .8rem; color: var(--ink-3);
}
.trust li {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 0;
}
.trust__icon {
  width: 20px; height: 20px; display: grid; place-items: center; flex: none;
  border-radius: 50%;
  color: var(--live);
  background: rgba(45, 216, 166, .11);
  box-shadow: 0 0 18px rgba(45, 216, 166, .12);
}
.trust svg { display: block; }

/* ---------- 夜色通话面板 ---------- */
.showcase {
  grid-area: show; position: relative; align-self: center; justify-self: center;
  width: clamp(246px, 24vw, 304px);
}
.showcase::before {
  content: ""; position: absolute; z-index: -1;
  inset: -17% -18% -12%;
  background:
    radial-gradient(circle at 50% 45%, rgba(255, 116, 188, .38), transparent 54%),
    radial-gradient(circle at 65% 64%, rgba(45, 216, 166, .12), transparent 48%);
  filter: blur(28px);
}
.callpanel {
  position: relative; width: 100%; aspect-ratio: 280 / 564; overflow: hidden;
  border-radius: 36px; background: #181320;
  box-shadow: var(--sh-panel), inset 0 0 0 1px rgba(255, 255, 255, .08);
}
.callpanel__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 16%; }
.veil { position: absolute; inset: 0; pointer-events: none; }
.veil--light { background: radial-gradient(68% 46% at 82% 16%, rgba(255, 120, 180, .34), transparent 60%); mix-blend-mode: screen; }
.veil--top { inset: 0 0 auto 0; height: 32%; background: linear-gradient(180deg, rgba(16, 11, 24, .72), transparent); }
.veil--bottom { inset: auto 0 0 0; height: 52%; background: linear-gradient(0deg, rgba(14, 10, 21, .92), transparent); }

.statusbar { position: absolute; top: 0; left: 0; right: 0; height: 34px; z-index: 5; display: flex; align-items: center; justify-content: space-between; padding: 0 18px; color: #fff; }
.statusbar__time { font-size: .82rem; font-weight: 600; letter-spacing: 0; text-shadow: 0 1px 4px rgba(0, 0, 0, .45); }
.statusbar__ic { display: inline-flex; align-items: center; gap: 6px; }
.statusbar__ic svg { display: block; filter: drop-shadow(0 1px 3px rgba(0, 0, 0, .45)); }
.call-top { position: absolute; top: 44px; left: 16px; right: 16px; z-index: 4; display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.call-id { display: flex; flex-direction: column; gap: 3px; }
.call-name { display: inline-flex; align-items: center; gap: 6px; font-weight: 800; font-size: .98rem; color: #fff; text-shadow: 0 1px 6px rgba(0, 0, 0, .5); }
.verify { width: 15px; height: 15px; background: var(--brand-grad); border-radius: 50%; color: #fff; display: grid; place-items: center; box-shadow: var(--glow-pink); }
.verify svg { display: block; }
.call-status { display: inline-flex; align-items: center; gap: 6px; font-size: .72rem; color: #EAE3F2; text-shadow: 0 1px 6px rgba(0, 0, 0, .5); }
.call-status .live { width: 7px; height: 7px; }
.pip {
  position: relative; width: 54px; height: 78px; border-radius: 16px; overflow: hidden; flex: none;
  background: linear-gradient(160deg, #FFD6E7, #FF9CC4);
  display: grid; place-items: center; box-shadow: 0 12px 26px -12px rgba(0, 0, 0, .72);
}
.pip__tag { position: absolute; bottom: 0; left: 0; right: 0; font-size: .52rem; color: #fff; text-align: center; padding: 2px 0; background: rgba(0, 0, 0, .36); }
.gift-toast { display: none; }
.call-ctl { position: absolute; left: 0; right: 0; bottom: 21px; z-index: 4; display: flex; justify-content: center; gap: 16px; }
.cbtn {
  width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255, 255, 255, .14); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .14);
}
.cbtn--gift { background: linear-gradient(135deg, #FFC46B, #FF6FA8); box-shadow: 0 0 22px rgba(255, 130, 170, .48); }
.cbtn--end { background: linear-gradient(135deg, #FF5F6D, #FF2D55); box-shadow: 0 0 22px rgba(255, 45, 85, .52); }

/* 手机内邀请演示 */
.invite-card {
  position: absolute; left: 14px; right: 14px; bottom: 78px; z-index: 7;
  display: grid; grid-template-columns: 38px minmax(0, 1fr); gap: 10px;
  padding: 10px;
  border-radius: 22px;
  color: var(--ink-0);
  background:
    radial-gradient(circle at 18% 0%, rgba(255, 122, 184, .26), transparent 46%),
    rgba(22, 16, 29, .74);
  -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  box-shadow: 0 24px 46px -24px rgba(0, 0, 0, .9), inset 0 1px 0 rgba(255, 255, 255, .14);
}
.invite__avatar {
  width: 38px; height: 38px; border-radius: 15px;
  display: grid; place-items: center;
  font-size: .96rem; font-weight: 800;
  background: var(--brand-grad);
  box-shadow: 0 0 22px rgba(255, 116, 188, .48);
}
.invite__copy { min-width: 0; align-self: center; }
.invite__copy strong { display: block; font-size: .78rem; line-height: 1.25; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.invite__copy em { display: block; margin-top: 3px; font-size: .66rem; color: var(--ink-2); font-style: normal; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.invite__actions {
  grid-column: 1 / -1;
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 2px;
  font-size: .7rem; font-weight: 800;
}
.invite__later, .invite__accept {
  height: 29px; display: grid; place-items: center; border-radius: var(--r-pill);
}
.invite__later { color: var(--ink-2); background: rgba(255, 255, 255, .08); }
.invite__accept {
  color: #fff;
  background: linear-gradient(135deg, #FF88BF, #E84884);
  box-shadow: 0 0 0 rgba(255, 116, 188, 0);
}

/* 手机周围高价值浮层 */
.chip {
  --chip-rgb: 255, 122, 184;
  position: absolute; z-index: 6; display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 800; color: var(--ink-0);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .14), rgba(255, 255, 255, .055)),
    rgba(20, 14, 28, .62);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-radius: 16px; padding: 8px 12px 8px 8px;
  box-shadow: 0 18px 38px -24px rgba(0, 0, 0, .86), 0 0 24px rgba(var(--chip-rgb), .22), inset 0 1px 0 rgba(255, 255, 255, .14);
}
.chip__ic {
  width: 27px; height: 27px; padding: 5px; border-radius: 11px;
  color: rgb(var(--chip-rgb));
  background: rgba(var(--chip-rgb), .14);
  filter: drop-shadow(0 0 8px rgba(var(--chip-rgb), .34));
}
.chip--a { --chip-rgb: 45, 216, 166; top: 28%; right: -19%; }
.chip--b { --chip-rgb: 255, 122, 184; top: 44%; left: -20%; }
.chip--c { --chip-rgb: 243, 179, 91; bottom: 21%; right: -13%; }

/* ---------- 页脚 ---------- */
.footer {
  flex: none; display: flex; align-items: center; justify-content: space-between; gap: 6px 22px; flex-wrap: wrap;
  padding-top: clamp(11px, 1.9vh, 17px); border-top: 1px solid rgba(255, 255, 255, .07);
  font-size: .8rem; color: var(--ink-3);
}
.footer__legal { display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.footer__legal a { color: var(--ink-2); transition: color .2s; }
.footer__legal a:hover { color: var(--brand-bright); }
.footer .sep { color: rgba(255, 255, 255, .2); }

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1040px) {
  .chip--a { right: -6%; }
  .chip--b { left: -5%; }
  .chip--c { right: -2%; }
}

@media (max-width: 860px) {
  .stage { padding: max(10px, env(safe-area-inset-top)) 20px max(8px, env(safe-area-inset-bottom)); }
  .hero { align-items: flex-start; padding: clamp(6px, 1vh, 10px) 0 0; }
  .hero__inner {
    width: calc(100vw - 40px);
    grid-template-columns: 1fr;
    grid-template-areas: "copy" "show" "features" "cta" "trust";
    column-gap: 0; justify-items: center; text-align: center;
    max-width: calc(100vw - 40px);
    min-width: 0;
    overflow-x: hidden;
  }
  .copy { display: flex; flex-direction: column; align-items: center; width: 100%; min-width: 0; }
  .brand { gap: 9px; }
  .brand__logo { width: 34px; height: 34px; border-radius: 10px; }
  .brand__name { font-size: 1.18rem; }
  .brand__soon { padding: 3px 8px; font-size: .64rem; }
  .eyebrow {
    padding: 7px 12px;
    font-size: .72rem;
    background: rgba(255, 255, 255, .07);
    box-shadow: 0 14px 38px -30px rgba(255, 110, 178, .76);
  }
  .intro {
    width: min(100%, 33ch);
    max-width: 100%;
    line-height: 1.42;
    margin-top: 9px;
    font-size: .91rem;
    overflow-wrap: anywhere;
  }
  .slogan {
    max-width: 100%;
    margin-top: clamp(7px, 1vh, 10px);
    font-size: clamp(2.24rem, 9.5vw, 2.92rem);
    line-height: .98;
    white-space: normal;
  }
  .slogan br { display: block; }

  .showcase { width: min(286px, 73vw); min-width: 0; margin: clamp(9px, 1.4vh, 13px) auto 0; }
  .showcase::before {
    inset: -12% -16% -8%;
    filter: blur(24px);
    background:
      radial-gradient(circle at 48% 42%, rgba(255, 116, 188, .32), transparent 58%),
      radial-gradient(circle at 64% 76%, rgba(45, 216, 166, .11), transparent 50%);
  }
  .callpanel {
    aspect-ratio: 5 / 6;
    border-radius: 30px;
    box-shadow:
      0 36px 86px -42px rgba(255, 84, 156, .7),
      0 26px 62px -48px rgba(0, 0, 0, .9),
      inset 0 0 0 1px rgba(255, 255, 255, .08);
  }
  .callpanel__video { object-position: 50% 13%; }
  .veil--top { height: 29%; }
  .veil--bottom { height: 66%; background: linear-gradient(0deg, rgba(14, 10, 21, .94), rgba(14, 10, 21, .2) 66%, transparent); }
  .pip { display: none; }
  .statusbar { display: flex; height: 30px; padding: 0 17px; }
  .statusbar__time { font-size: .72rem; }
  .statusbar__ic { gap: 4px; transform: scale(.84); transform-origin: right center; }
  .call-ctl { display: flex; bottom: 15px; gap: 12px; }
  .cbtn { width: 36px; height: 36px; }
  .cbtn svg { width: 16px; height: 16px; }
  .chip { display: none; }
  .call-top { top: 37px; left: 16px; right: 16px; }
  .call-name { font-size: .94rem; }
  .call-status { font-size: .66rem; }
  .invite-card {
    left: 12px; right: 12px; bottom: 61px;
    grid-template-columns: 34px minmax(0, 1fr) auto;
    align-items: center; gap: 7px; padding: 9px;
    border-radius: 20px;
    background:
      radial-gradient(circle at 20% 0%, rgba(255, 122, 184, .28), transparent 48%),
      rgba(20, 14, 28, .76);
  }
  .invite__avatar { width: 34px; height: 34px; border-radius: 13px; font-size: .84rem; }
  .invite__copy strong { font-size: .69rem; }
  .invite__copy em { font-size: .61rem; }
  .invite__actions { grid-column: auto; grid-template-columns: 38px 42px; gap: 5px; margin-top: 0; font-size: .6rem; }
  .invite__later, .invite__accept { height: 26px; }

  .features {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 5px;
    width: min(100%, 348px);
    margin-top: 10px;
    padding: 7px;
    border-radius: 22px;
    background:
      radial-gradient(circle at 14% 0%, rgba(255, 122, 184, .12), transparent 46%),
      rgba(255, 255, 255, .055);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1), 0 18px 42px -36px rgba(0, 0, 0, .9);
  }
  .feat {
    min-height: 58px;
    padding: 6px 4px 5px;
    border-radius: 16px;
    background: transparent;
    box-shadow: none;
  }
  .feat::before { display: none; }
  .feat__icon { width: 30px; height: 30px; border-radius: 12px; margin: 0 auto; box-shadow: 0 12px 24px -18px rgba(var(--feat-rgb), .85); }
  .feat__svg { width: 17px; height: 17px; }
  .feat__copy { margin-top: 5px; }
  .feat__copy strong { font-size: clamp(.66rem, 2.8vw, .75rem); line-height: 1.12; }
  .feat__copy em { display: none; }

  .cta {
    width: min(100%, 348px);
    margin-top: 9px;
    padding: 10px 11px 10px 10px;
    gap: 10px;
    border-radius: 22px;
  }
  .qr { display: none; }
  .cta__status { margin-bottom: 4px; padding: 3px 8px; font-size: .62rem; }
  .cta__title { font-size: .96rem; }
  .cta__sub { margin-top: 3px; font-size: .72rem; }
  .stores { flex-direction: column; align-items: stretch; gap: 8px; width: 100%; margin-top: 11px; }
  .store { flex: none; white-space: nowrap; }
  .store--android { padding: 14px 16px; }
  .store--android span { font-size: .92rem; }
  .store--android svg { width: 19px; height: 19px; }
  .store--disabled { padding: 9px 12px; font-size: .72rem; }
  .store span, .store em { white-space: nowrap; }
  .trust { justify-content: center; width: min(100%, 348px); gap: 7px 10px; margin-top: 9px; font-size: .68rem; opacity: .74; }
  .trust__icon { width: 17px; height: 17px; }
  .trust svg { width: 12px; height: 12px; }
  .online { display: none; }
  .footer { display: none; }
  .footer__legal { display: none; }
}

@media (min-width: 410px) and (max-width: 860px) {
  .showcase { width: min(296px, 70vw); margin-top: 12px; }
  .features, .cta, .trust { width: min(100%, 362px); }
}

@media (max-width: 410px) {
  .showcase { width: min(270px, 70vw); margin-top: 7px; }
  .features, .cta, .trust { width: min(100%, 332px); }
  .features { margin-top: 8px; }
  .cta { margin-top: 8px; }
  .invite__copy strong { font-size: .65rem; }
  .invite__actions { grid-template-columns: 34px 40px; }
}

@media (max-width: 380px) {
  .stage { padding-left: 17px; padding-right: 17px; }
  .hero__inner { width: calc(100vw - 34px); max-width: calc(100vw - 34px); }
  .eyebrow { font-size: .69rem; padding-inline: 11px; }
  .intro { max-width: 33ch; font-size: .88rem; }
  .showcase { width: min(262px, 70vw); margin-top: 7px; }
  .features, .cta, .trust { width: min(100%, 322px); }
  .feat__copy strong { font-size: .64rem; }
  .invite-card { left: 11px; right: 11px; gap: 6px; }
  .invite__copy strong { font-size: .66rem; }
  .invite__actions { grid-template-columns: 36px 40px; }
}

@media (max-width: 860px) and (max-height: 740px) {
  .eyebrow { display: none; }
  .slogan { margin-top: 0; font-size: clamp(2.35rem, 9.2vw, 3rem); }
  .intro { font-size: .86rem; line-height: 1.4; margin-top: 7px; }
  .showcase { width: min(250px, 68vw); margin: 7px auto 0; }
  .callpanel { border-radius: 26px; }
  .call-top { top: 33px; }
  .invite-card { bottom: 56px; padding: 8px; }
  .call-ctl { bottom: 13px; }
  .cbtn { width: 33px; height: 33px; }
  .features { margin-top: 8px; padding: 6px; }
  .feat { min-height: 52px; }
  .feat__icon { width: 27px; height: 27px; border-radius: 11px; }
  .cta { margin-top: 8px; padding: 9px 10px 9px 9px; gap: 9px; }
  .qr { width: 56px; }
  .stores { display: flex; }
  .trust { display: none; }
}

@media (min-width: 861px) and (max-height: 780px) {
  .hero { padding: clamp(8px, 1.5vh, 21px) 0; }
  .slogan { font-size: clamp(2.6rem, 5.35vw, 3.75rem); margin-top: clamp(10px, 1.6vh, 18px); }
  .showcase { width: clamp(206px, 19vw, 232px); }
  .feat { min-height: 92px; padding: 12px; border-radius: 21px; }
  .feat__icon { width: 46px; height: 46px; border-radius: 18px; }
  .feat__copy strong { font-size: .84rem; }
  .feat__copy em { font-size: .68rem; line-height: 1.35; }
  .cta { padding: 12px 15px 12px 12px; }
  .qr { width: 78px; }
}

@media (max-height: 560px) {
  .showcase { width: min(250px, 56vw); }
}

/* =========================================================
   动效（渐进增强：默认可见，唯一类名 ym-rise，防白屏）
   ========================================================= */
@media (prefers-reduced-motion: no-preference) {
  .ym-rise { opacity: 0; transform: translateY(16px); animation: rise .75s var(--ease) forwards; }
  .topbar.ym-rise   { animation-delay: .02s; }
  .copy.ym-rise     { animation-delay: .10s; }
  .features.ym-rise { animation-delay: .18s; }
  .cta.ym-rise      { animation-delay: .26s; }
  .trust.ym-rise    { animation-delay: .32s; }
  .showcase.ym-rise { animation: rise-show .85s var(--ease) .14s forwards; opacity: 0; transform: translateY(22px) scale(.97); }
  .footer.ym-rise   { animation-delay: .36s; }

  .live { animation: pulse 2.4s var(--ease) infinite; }
  .atmos__flow--a { animation: flow-a 24s var(--ease) infinite alternate; }
  .atmos__flow--b { animation: flow-b 28s var(--ease) infinite alternate; }
  .atmos__dust { animation: dust-drift 34s linear infinite; }
  .atmos__rings { animation: ring-breathe 9s var(--ease) infinite; }
  .chip { animation: floaty 7.2s var(--ease) infinite; }
  .chip--b { animation-delay: -2.4s; }
  .chip--c { animation-delay: -4.2s; }
  .invite-card { animation: invite-cycle 10.5s var(--ease) infinite; }
  .invite__accept { animation: accept-breathe 2.4s var(--ease) infinite; }
}
@media (max-width: 860px) and (prefers-reduced-motion: no-preference) {
  .invite-card { animation-delay: -3s; }
}
@keyframes rise { to { opacity: 1; transform: none; } }
@keyframes rise-show { to { opacity: 1; transform: none; } }
@keyframes flow-a {
  0% { transform: translate3d(0, 0, 0) scale(1); opacity: .24; }
  100% { transform: translate3d(12vw, 6vh, 0) scale(1.08); opacity: .36; }
}
@keyframes flow-b {
  0% { transform: translate3d(0, 0, 0) scale(1); opacity: .22; }
  100% { transform: translate3d(-9vw, -7vh, 0) scale(1.05); opacity: .34; }
}
@keyframes dust-drift {
  0% { background-position: 0 0, 0 0, 0 0, 0 0; }
  100% { background-position: 420px -160px, -520px 210px, 360px 180px, -470px -190px; }
}
@keyframes ring-breathe {
  0%, 100% { transform: translate(50%, -50%) scale(1); opacity: .72; }
  50% { transform: translate(50%, -50%) scale(1.06); opacity: 1; }
}
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
@keyframes invite-cycle {
  0%, 14% { opacity: 0; transform: translateY(16px) scale(.96); }
  24%, 72% { opacity: 1; transform: translateY(0) scale(1); }
  86%, 100% { opacity: 0; transform: translateY(10px) scale(.98); }
}
@keyframes accept-breathe {
  0%, 100% { box-shadow: 0 0 0 rgba(255, 116, 188, 0), 0 0 16px rgba(255, 116, 188, .22); }
  50% { box-shadow: 0 0 0 6px rgba(255, 116, 188, .09), 0 0 28px rgba(255, 116, 188, .52); }
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(45, 216, 166, .48), 0 0 8px rgba(45, 216, 166, .8); }
  70%  { box-shadow: 0 0 0 7px rgba(45, 216, 166, 0), 0 0 8px rgba(45, 216, 166, .8); }
  100% { box-shadow: 0 0 0 0 rgba(45, 216, 166, 0), 0 0 8px rgba(45, 216, 166, .8); }
}

@media (prefers-reduced-motion: reduce) {
  .live, .atmos__flow, .atmos__dust, .atmos__rings, .chip, .invite-card, .invite__accept {
    animation: none;
    transition: none;
  }
  .atmos__flow { opacity: .22; }
  .atmos__dust { opacity: .3; }
  .invite-card { opacity: .96; transform: none; }
}