/* style.css —— 漫蛙官网：黑炫底 + 霓虹绿，移动优先 */
:root {
  --bg: #070b09;
  --bg2: #0a100d;
  --card: #0e1713;
  --card2: #121d18;
  --line: #1e2f27;
  --ink: #eaf6ef;
  --ink2: #b3c9bd;
  --mute: #728f80;
  --n1: #3ef29a;          /* 霓虹绿 */
  --n2: #12b877;
  --n3: #6ff0ff;          /* 辅助青 */
  --amber: #ffd166;
  --shadow: 0 18px 44px rgba(0, 0, 0, .5);
  --glow: 0 0 26px rgba(62, 242, 154, .35);
  --wrap: 1120px;
  --f: -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
}
* { box-sizing: border-box }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth }
body {
  margin: 0; color: var(--ink); font: 16px/1.75 var(--f);
  background-color: var(--bg);
  background-image:
    radial-gradient(90% 60% at 8% 0%, rgba(62, 242, 154, .17) 0%, rgba(62, 242, 154, 0) 60%),
    radial-gradient(70% 55% at 92% 12%, rgba(111, 240, 255, .13) 0%, rgba(111, 240, 255, 0) 58%),
    radial-gradient(120% 80% at 50% 110%, rgba(18, 184, 119, .14) 0%, rgba(18, 184, 119, 0) 62%);
  background-attachment: fixed;
}
img { max-width: 100%; height: auto; display: block }
a { color: var(--n1); text-decoration: none }
a:focus-visible, button:focus-visible { outline: 3px solid var(--n1); outline-offset: 2px }
h1, h2, h3 { line-height: 1.3; margin: 0 0 .55em; font-weight: 800 }
p { margin: 0 0 .9em }
ol, ul, dl, dt, dd { margin: 0; padding: 0; list-style: none }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 18px }

/* ————— 顶部胶囊栏（不固定，随页面滚走） ————— */
.bar { padding: 14px 12px 0 }
.bar-in {
  max-width: var(--wrap); margin: 0 auto; display: flex; align-items: center; gap: 12px;
  background: rgba(10, 16, 13, .82); backdrop-filter: blur(14px);
  border: 1px solid var(--line); border-radius: 999px; padding: 9px 12px 9px 14px;
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, .05);
}
.brand { display: flex; align-items: center; gap: 10px; margin-right: auto; color: var(--ink) }
.brand img { border-radius: 50%; background: #fff; box-shadow: 0 0 0 1px var(--line), var(--glow) }
.brand span { font-size: 21px; font-weight: 900; letter-spacing: 1px }
.tag { background: rgba(62, 242, 154, .12); border: 1px solid rgba(62, 242, 154, .38); color: var(--n1); font-size: 13.5px; font-weight: 700; border-radius: 999px; padding: 7px 16px; white-space: nowrap }

/* ————— 首屏 ————— */
.hero { padding: 34px 0 10px }
.hero-in { max-width: var(--wrap); margin: 0 auto; padding: 0 18px; display: grid; gap: 26px }
.pill { display: inline-flex; align-items: center; gap: 6px; background: rgba(111, 240, 255, .1); border: 1px solid rgba(111, 240, 255, .3); color: var(--n3); font-size: 14px; font-weight: 700; border-radius: 999px; padding: 7px 15px; margin-bottom: 16px }
.hero h1 { font-size: clamp(34px, 10vw, 68px); font-weight: 900; letter-spacing: -1px; margin: 0 0 .35em; text-shadow: 0 4px 30px rgba(0, 0, 0, .6) }
.hero h1 em { font-style: normal; position: relative; color: var(--n1); z-index: 0; text-shadow: 0 0 24px rgba(62, 242, 154, .5) }
.hero h1 em::after { content: ""; position: absolute; left: -3px; right: -3px; bottom: .08em; height: .34em; background: linear-gradient(90deg, rgba(62, 242, 154, .55), rgba(111, 240, 255, .45)); z-index: -1; border-radius: 4px }
.sub { font-size: 18px; color: var(--ink2); line-height: 1.85; margin: 0 0 22px }
.dlbtns { display: flex; flex-wrap: wrap; gap: 12px; margin: 0 0 14px }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; border-radius: 15px; padding: 15px 26px; font-size: 16.5px; font-weight: 800; min-height: 52px; transition: transform .16s, box-shadow .16s, filter .16s; border: 1px solid transparent }
.btn svg { width: 21px; height: 21px; flex: 0 0 auto }
.btn-dark { background: linear-gradient(180deg, var(--n1), var(--n2)); color: #04170f; box-shadow: var(--glow), 0 12px 30px rgba(0, 0, 0, .45) }
.btn-light { background: rgba(255, 255, 255, .06); color: var(--ink); border-color: rgba(62, 242, 154, .35) }
.btn:hover { transform: translateY(-2px); filter: brightness(1.06) }
.btn-dark:hover { box-shadow: 0 0 38px rgba(62, 242, 154, .55), 0 16px 34px rgba(0, 0, 0, .5) }
.btn-light:hover { background: rgba(62, 242, 154, .12); box-shadow: 0 0 22px rgba(62, 242, 154, .2) }
.btn:active { transform: translateY(0) }
.note { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--mute); margin: 0 }
.note i { width: 8px; height: 8px; border-radius: 50%; background: var(--n1); box-shadow: 0 0 12px var(--n1); flex: 0 0 auto }
.hero-art { position: relative; display: grid; place-items: center; min-height: 300px; padding: 10px 0 }
.ring { position: absolute; width: min(400px, 96%); aspect-ratio: 1; border: 2px dashed rgba(62, 242, 154, .32); border-radius: 50%; box-shadow: 0 0 60px rgba(62, 242, 154, .12) inset }
.appicon { position: relative; background: #fff; border-radius: 40px; padding: 26px; box-shadow: 0 30px 70px rgba(0, 0, 0, .55), 0 0 50px rgba(62, 242, 154, .28) }
.appicon img { width: min(200px, 46vw); height: auto; border-radius: 8px }

/* ————— 区块 ————— */
.sec { padding: 46px 0 }
.sec-alt { background: rgba(255, 255, 255, .025); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line) }
.sec-h { font-size: clamp(22px, 5.2vw, 28px); letter-spacing: -.2px }
.sec-h::before { content: ""; display: inline-block; width: 4px; height: .95em; background: var(--n1); border-radius: 2px; margin-right: 10px; vertical-align: -.12em; box-shadow: 0 0 14px var(--n1) }
.sec-x { font-size: 13.5px; color: var(--mute); font-weight: 400; margin-left: 8px }
.btns { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 0 }

/* 功能卡 */
.caps { display: grid; gap: 14px }
.cap { background: linear-gradient(180deg, var(--card2), var(--card)); border: 1px solid var(--line); border-radius: 18px; padding: 20px; box-shadow: 0 10px 26px rgba(0, 0, 0, .35); transition: border-color .18s, transform .18s }
.cap:hover { border-color: rgba(62, 242, 154, .5); transform: translateY(-3px) }
.cap b { display: inline-block; color: var(--n3); font-size: 13px; letter-spacing: 1.5px; margin-bottom: 8px }
.cap h3 { font-size: 17.5px; margin: 0 0 8px }
.cap p { font-size: 14.5px; color: var(--ink2); margin: 0 }

/* 下载说明 */
.two { display: grid; gap: 14px }
.how { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 22px }
.how h3 { display: flex; align-items: center; gap: 9px; font-size: 18px; margin-bottom: 14px }
.how h3 svg { width: 24px; height: 24px; color: var(--n1); flex: 0 0 auto }
.steps { display: grid; gap: 11px; counter-reset: s }
.steps li { position: relative; padding-left: 32px; font-size: 14.5px; color: var(--ink2); counter-increment: s }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 1px; width: 22px; height: 22px; border-radius: 50%; background: rgba(62, 242, 154, .14); border: 1px solid rgba(62, 242, 154, .4); color: var(--n1); font-size: 12.5px; font-weight: 800; display: grid; place-items: center }
code { background: #0b120f; border: 1px solid var(--line); border-radius: 6px; padding: 2px 7px; font-size: 13px; font-family: ui-monospace, Consolas, monospace; color: var(--n3) }
.tip { font-size: 13.5px; color: var(--mute); margin: 14px 0 0 }
.tip.warn { background: rgba(255, 209, 102, .08); border-left: 3px solid var(--amber); border-radius: 0 10px 10px 0; padding: 11px 13px; color: #f0dfa8 }

/* FAQ */
.faq { display: grid; gap: 4px }
.faq dt { font-size: 16.5px; font-weight: 800; padding-top: 16px }
.faq dd { font-size: 14.5px; color: var(--ink2); padding-bottom: 14px; border-bottom: 1px dashed var(--line) }
.faq dd:last-of-type { border-bottom: 0 }

/* 用户评价 */
.cmts { display: grid; gap: 12px }
.cmts > li { display: flex; gap: 12px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px }
.ava { flex: 0 0 40px; height: 40px; border-radius: 50%; background: rgba(62, 242, 154, .14); border: 1px solid rgba(62, 242, 154, .35); color: var(--n1); display: grid; place-items: center; font-weight: 800; font-size: 16px }
.who { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; font-size: 12.5px; color: var(--mute); margin: 0 0 4px }
.who b { color: var(--ink); font-size: 15px }
.who i { font-style: normal; color: var(--amber); font-weight: 800 }
.txt { font-size: 14.5px; color: var(--ink2); margin: 0 }

/* 页脚 */
.ft { padding: 34px 0 46px; text-align: center; font-size: 13px; color: var(--mute); border-top: 1px solid var(--line) }
.ft p { margin: 0 0 6px }
.ft a { color: var(--ink2) }

/* 回到顶部 */
.toTop { position: fixed; right: 16px; bottom: 22px; z-index: 35; width: 44px; height: 44px; border-radius: 50%; background: var(--card2); border: 1px solid rgba(62, 242, 154, .4); color: var(--n1); display: none; place-items: center; font-size: 20px; box-shadow: var(--shadow) }
.toTop.s { display: grid }

/* ————— ≥720px ————— */
@media (min-width: 720px) {
  .hero { padding: 56px 0 16px }
  .hero-in { grid-template-columns: 1.05fr .95fr; align-items: center; gap: 34px }
  .sub { font-size: 19px }
  .caps { grid-template-columns: repeat(2, 1fr) }
  .two { grid-template-columns: 1fr 1fr }
  .cmts { grid-template-columns: 1fr 1fr }
  .sec { padding: 62px 0 }
  .hero-art { min-height: 420px }
  .appicon { padding: 34px; border-radius: 52px }
}

/* ————— ≥1000px ————— */
@media (min-width: 1000px) {
  .caps { grid-template-columns: repeat(4, 1fr) }
  .bar { padding-top: 18px }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto }
  * { transition: none !important; animation: none !important }
}