/* ========================================
   6sol AI Konbini Design System
   基于首页的荧光黄/热粉/青色+黑描边排版
   ======================================== */

:root {
  --black: #17141f;
  --night: #0d0a33;
  --pink: #ff3f9a;
  --yellow: #e8ff3a;
  --cyan: #2fe0ff;
  --violet: #8a5cff;
  --sport: "Segoe UI Black", "Arial Black", "Helvetica Neue", Impact, sans-serif;
  --cjk: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --cut: 26px;
  --skew: -12deg;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--black);
}

/* 彻底清除旧站的蓝紫渐变背景 */
body, [data-theme=dark] body, [data-theme=light] body {
  margin: 0;
  background: linear-gradient(165deg, #17141f 0%, #1a0f1f 42%, #2c0d24 72%, #17141f 100%) fixed !important;
  color: var(--black);
  font: 16px/1.7 var(--cjk);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

/* 清除旧站grid overlay */
body::before, [data-theme=dark] body::before {
  display: none !important;
}

/* ===== 页面层装饰背景 ===== */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at 16% 10%, rgba(255,63,154,.26), transparent 36%),
    radial-gradient(circle at 86% 72%, rgba(255,63,154,.18), transparent 34%),
    radial-gradient(circle at 60% 110%, rgba(138,92,255,.12), transparent 40%),
    radial-gradient(circle 2.5px at 50% 50%, rgba(255,63,154,.32) 1.5px, transparent 2px) 0 0 / 40px 40px;
  opacity: .9;
}

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

/* ===== 导航栏 ===== */
.knav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 26px;
  background: rgba(23,20,31,.92);
  border-bottom: 3px solid var(--pink);
  backdrop-filter: blur(12px);
}

.knav-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 18px 8px 12px;
  text-decoration: none;
  color: var(--black);
  background: #fff;
  border: 3px solid var(--black);
  box-shadow: 4px 4px 0 var(--pink);
  transform: skewX(var(--skew));
  transition: transform .12s;
}
.knav-brand:hover {
  transform: skewX(var(--skew)) translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--pink);
}

.knav-logo {
  width: 22px;
  height: 22px;
  fill: var(--pink);
  stroke: var(--black);
  stroke-width: 3px;
}

.knav-brand b {
  font: italic 900 20px/1 var(--sport);
  letter-spacing: .02em;
}

.knav-brand small {
  padding: 3px 6px;
  font: 800 11px/1 var(--cjk);
  color: #fff;
  background: var(--black);
}

.knav-tabs {
  display: flex;
  gap: 8px;
}

.knav-tabs a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 18px 6px 10px;
  text-decoration: none;
  color: #fff;
  background: rgba(23,20,31,.86);
  border: 2.5px solid var(--black);
  transform: skewX(var(--skew));
  transition: background .2s, color .2s, box-shadow .2s;
}

.knav-tabs svg {
  width: 26px;
  height: 26px;
  padding: 4px;
  color: currentColor;
  background: rgba(255,255,255,.14);
  border-radius: 50%;
}

.knav-tabs span {
  display: flex;
  flex-direction: column;
  font: 800 14px/1.05 var(--cjk);
}

.knav-tabs i {
  margin-top: 3px;
  font: italic 900 9px/1 var(--sport);
  letter-spacing: .22em;
  opacity: .6;
}

.knav-tabs a:hover, .knav-tabs a.cur {
  color: var(--black);
  background: linear-gradient(100deg, #f4ff3a, #ffd0e6 70%, var(--pink));
  box-shadow: 4px 4px 0 var(--black);
}

.knav-tabs a.cur svg, .knav-tabs a:hover svg {
  background: rgba(23,20,31,.12);
}

.knav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.knav-links a {
  display: inline-flex;
  align-items: center;
  padding: 8px 15px;
  text-decoration: none;
  font: 700 14px/1 var(--cjk);
  color: #fff;
  background: rgba(23,20,31,.78);
  border: 2px solid rgba(255,255,255,.2);
  border-radius: 999px;
  transition: border-color .2s;
}

.knav-links a:hover {
  border-color: var(--cyan);
}

.knav-login b {
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  margin: -2px -6px -2px 10px;
  font: 900 15px/1 var(--sport);
  color: #fff;
  background: var(--pink);
  border-radius: 4px;
}

.knav-login.me {
  display: grid;
  grid-template: "ava nm" auto "ava pt" auto / auto 1fr;
  gap: 0 10px;
  padding: 6px 14px 6px 6px;
}

.knav-login .ava {
  grid-area: ava;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  font: 900 15px/1 var(--sport);
  color: #fff;
  background: linear-gradient(135deg, var(--pink), var(--violet));
}

.knav-login .nm {
  grid-area: nm;
  font: 700 13px/1 var(--cjk);
  align-self: end;
}

.knav-login .pt {
  grid-area: pt;
  font: 600 11px/1 var(--cjk);
  color: var(--yellow);
  align-self: start;
}

.knav-checkin {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 14px;
  font: 700 13px/1 var(--cjk);
  color: var(--pink);
  background: transparent;
  border: 2px solid var(--pink);
  border-radius: 999px;
  cursor: pointer;
  transition: all .15s;
}

.knav-checkin:hover {
  background: var(--pink);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(255,63,154,.3);
}

.knav-checkin svg {
  stroke: currentColor;
}

.knav-checkin.is-checked {
  color: var(--black);
  background: var(--yellow);
  border-color: var(--black);
}

.btn-redeem:disabled {
  cursor: default;
  opacity: .6;
  transform: none;
  box-shadow: 4px 4px 0 var(--black);
}

/* 签到规则 */
.checkin-rules {
  margin: 0 0 16px;
  padding: 12px 14px 12px 32px;
  font-size: 13px;
  line-height: 1.75;
  color: #3b3752;
  background: rgba(255,63,154,.07);
  border: 2px dashed rgba(23,20,31,.35);
  border-radius: 10px;
}
.checkin-rules b { color: var(--pink); }
.checkin-state {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
  font: 800 14px/1.4 var(--cjk);
  color: var(--black);
}
.checkin-state strong {
  font: italic 900 30px/1 var(--sport);
  color: var(--pink);
  text-shadow: 2px 2px 0 var(--black);
}

.knav-go {
  display: grid;
  place-items: center;
  height: 48px;
  padding: 0 20px;
  text-decoration: none;
  font: 900 16px/1 var(--cjk);
  letter-spacing: .06em;
  color: #fff;
  background: var(--pink);
  border: 3px solid var(--black);
  box-shadow: 4px 4px 0 var(--black);
  text-shadow: 2px 2px 0 var(--black);
  clip-path: polygon(12px 0, 100% 0, 100% 100%, 0 100%, 0 12px);
  transition: transform .12s;
}

.knav-go:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

/* ===== 主内容区 ===== */
.kont {
  position: relative;
  z-index: 2;
  min-height: calc(100vh - 200px);
  padding: 46px 0 80px;
}

/* ===== 页面容器 ===== */
.kpage {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
}

/* ===== Hero 区 ===== */
.khero {
  position: relative;
  padding: 60px 0 50px;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.khero::before {
  content: "";
  position: absolute;
  inset: -100px;
  z-index: -1;
  background:
    radial-gradient(circle at 50% 20%, rgba(255,63,154,.28), transparent 45%),
    radial-gradient(circle at 30% 70%, rgba(138,92,255,.22), transparent 42%);
  filter: blur(60px);
  pointer-events: none;
}

.khero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 6px 16px;
  font: italic 900 12px/1 var(--sport);
  letter-spacing: .26em;
  color: var(--black);
  background: var(--yellow);
  border: 2.5px solid var(--black);
  transform: skewX(var(--skew));
}

.khero-eyebrow i {
  font-style: normal;
  font-size: 16px;
  color: var(--pink);
}

.khero-title {
  margin: 24px 0 16px;
  font: 900 clamp(42px, 5.5vw, 68px)/1.1 var(--cjk);
  letter-spacing: -.02em;
  color: #fff;
  text-shadow: 4px 4px 0 var(--pink), 7px 7px 0 var(--black);
}

.khero-title .hl {
  color: var(--yellow);
  font-style: italic;
  transform: skewX(-8deg);
  display: inline-block;
}

.khero-desc {
  max-width: 700px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
  color: #dde5f4;
}

/* ===== 卡片 (浅色 plate 风格) ===== */
.kcard {
  position: relative;
  padding: 32px;
  background: linear-gradient(165deg, #fff 0%, #fff 60%, rgba(255,63,154,.08) 100%);
  border: 3px solid var(--black);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
  box-shadow: 8px 8px 0 var(--pink);
}

.kcard::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 170px;
  height: 64px;
  background: repeating-linear-gradient(-45deg, rgba(255,63,154,.35) 0 5px, transparent 5px 13px);
  -webkit-mask: linear-gradient(225deg, #000 30%, transparent 80%);
  mask: linear-gradient(225deg, #000 30%, transparent 80%);
  pointer-events: none;
}

.kcard-title {
  margin: 0 0 14px;
  font: 900 28px/1.2 var(--cjk);
  color: var(--black);
  text-shadow: 3px 3px 0 var(--pink);
  transform: skewX(-8deg);
  transform-origin: left;
}

.kcard-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #3b3752;
}

/* ===== 按钮 ===== */
.kbtn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 12px 28px;
  text-decoration: none;
  color: var(--black);
  font: 900 17px/1 var(--cjk);
  letter-spacing: .04em;
  background: linear-gradient(100deg, #f4ff3a 0%, var(--yellow) 55%, #fff59a 100%);
  border: 3px solid var(--black);
  box-shadow: 6px 6px 0 var(--black);
  transform: skewX(var(--skew));
  transition: transform .12s, box-shadow .12s;
  cursor: pointer;
}

.kbtn:hover {
  transform: skewX(var(--skew)) translate(-2px, -2px);
  box-shadow: 9px 9px 0 var(--pink);
}

.kbtn:active {
  transform: skewX(var(--skew)) translate(3px, 3px);
  box-shadow: 2px 2px 0 var(--black);
}

.kbtn.sub {
  color: #fff;
  background: var(--black);
  box-shadow: 6px 6px 0 var(--cyan);
}

.kbtn.sub:hover {
  box-shadow: 9px 9px 0 var(--cyan);
}

/* ===== Footer ===== */
.kfooter {
  position: relative;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  gap: 20px 30px;
  justify-content: center;
  align-items: center;
  padding: 32px 20px 36px;
  background: var(--black);
  color: #b9b6dc;
  font-size: 13.5px;
  border-top: 4px solid var(--pink);
  text-align: center;
}

.kfooter > div {
  display: grid;
  gap: 4px;
}

.kfooter span {
  font: 900 16px/1 var(--sport);
  color: var(--yellow);
}

.kfooter nav {
  display: flex;
  gap: 18px;
  font-weight: 700;
}

.kfooter a:hover {
  color: var(--yellow);
}

/* ===== Redeem Modal ===== */
.site-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.76);
  backdrop-filter: blur(8px);
}

.site-redeem-modal {
  width: min(460px, calc(100% - 32px));
  border: 3px solid var(--black);
  border-radius: 20px;
  background: #fff;
  box-shadow: 8px 8px 0 var(--pink);
  overflow: hidden;
}

.modal-header {
  padding: 24px 26px 18px;
  background: linear-gradient(100deg, var(--yellow), #fff);
  border-bottom: 3px solid var(--black);
}

.modal-header small {
  font: italic 900 11px/1 var(--sport);
  letter-spacing: .2em;
  color: var(--black);
  opacity: .7;
}

.modal-header h3 {
  margin: 5px 0 0;
  font: 900 24px/1 var(--cjk);
  color: var(--black);
}

.modal-body {
  padding: 24px 26px 28px;
}

.site-modal-note {
  margin-bottom: 18px;
  color: #5a5466;
  font-size: 13px;
  line-height: 1.7;
}

.redeem-input {
  width: 100%;
  height: 50px;
  padding: 0 14px;
  border: 2px solid var(--black);
  border-radius: 8px;
  background: rgba(232,255,58,.12);
  color: var(--black);
  font: 700 16px/1 var(--cjk);
  text-transform: uppercase;
  letter-spacing: 2px;
  outline: none;
}

.redeem-input:focus {
  border-color: var(--pink);
  box-shadow: 0 0 0 3px rgba(255,63,154,.15);
}

.btn-redeem {
  width: 100%;
  height: 48px;
  margin-top: 14px;
  border: 3px solid var(--black);
  border-radius: 10px;
  color: #fff;
  background: var(--pink);
  font: 900 16px/1 var(--cjk);
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--black);
  transition: transform .12s, box-shadow .12s;
}

.btn-redeem:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

.redeem-msg {
  margin-top: 12px;
  padding: 10px 12px;
  border: 2px solid;
  border-radius: 9px;
  font-size: 12px;
  display: none;
}

.redeem-msg.ok {
  color: #059669;
  background: rgba(16,185,129,.1);
  border-color: #10b981;
}

.redeem-msg.error {
  color: #dc2626;
  background: rgba(244,63,94,.1);
  border-color: #f43f5e;
}

/* ===== 响应式 ===== */
@media (max-width: 1100px) {
  .knav-links a:not(.knav-login) {
    display: none;
  }
}

@media (max-width: 860px) {
  .knav-tabs i, .knav-tabs svg {
    display: none;
  }
}

@media (max-width: 760px) {
  :root {
    --cut: 18px;
  }
  .knav {
    flex-wrap: wrap;
    padding: 12px 16px;
  }
  .knav-tabs {
    order: 3;
    width: 100%;
    flex-wrap: wrap;
  }
  .knav-tabs a {
    flex: 1;
    min-width: 100px;
    justify-content: center;
  }
  .kpage {
    width: calc(100% - 28px);
  }
  .khero {
    padding: 40px 0 30px;
  }
  .khero-title {
    font-size: 38px;
  }
  .kcard {
    padding: 22px;
  }
}