:root{
  --bg:#17101f;
  --bg-2:#1e1529;
  --bg-3:#261a35;
  --card:rgba(255,255,255,.045);
  --card-border:rgba(255,255,255,.09);
  --text:#f3e9f4;
  --text-2:#b9a6c8;
  --text-3:#8a7899;
  --pink:#f5a8c3;
  --pink-deep:#e77da3;
  --purple:#b8a0e8;
  --gold:#e8c9a0;
  --green:#a8d5a2;
  --radius:14px;
  --font-serif:"Georgia","Songti SC","STSong","SimSun",serif;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  line-height:1.7;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--pink-deep);color:#fff}

/* ---------- 粒子背景 ---------- */
#bgfx{position:fixed;inset:0;z-index:-1;pointer-events:none}

/* ---------- Hero 情话打字机 ---------- */
.hero-quote{
  min-height:24px;margin-top:14px;color:var(--text-2);font-size:14px;letter-spacing:1px;
}
.hero-quote .q-caret{
  display:inline-block;width:1px;height:14px;background:var(--pink);margin-left:3px;
  vertical-align:-2px;animation:blink 1s steps(1) infinite;
}
@keyframes blink{50%{opacity:0}}

/* 计时器数字跳动 */
.counter .num{transition:transform .18s ease}
.counter .num.bump{transform:scale(1.12);color:var(--pink)}

/* ---------- 数据一览 ---------- */
.stats-strip{
  max-width:860px;margin:-20px auto 0;padding:22px 10px;
  display:flex;justify-content:space-around;flex-wrap:wrap;gap:14px;
  background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);
}
.stat{text-align:center;min-width:80px}
.stat-num{font-family:var(--font-serif);font-size:26px;color:var(--pink)}
.stat-lbl{font-size:11px;color:var(--text-3);letter-spacing:2px;margin-top:2px}

/* ---------- 纪念日倒数 ---------- */
.cd-wrap{
  max-width:1080px;margin:0 auto;display:grid;
  grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px;
}
.cd-card{
  position:relative;padding:26px 22px;border-radius:var(--radius);
  background:var(--card);border:1px solid var(--card-border);overflow:hidden;
  transition:transform .3s,box-shadow .3s;
}
.cd-card:hover{transform:translateY(-4px);box-shadow:0 14px 36px rgba(0,0,0,.35)}
.cd-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--pink-deep),var(--purple));
}
.cd-card.gold::before{background:linear-gradient(90deg,var(--gold),var(--pink))}
.cd-name{font-family:var(--font-serif);font-size:18px;margin-bottom:4px}
.cd-date{font-size:12px;color:var(--text-3);letter-spacing:1px}
.cd-days{display:flex;align-items:baseline;gap:8px;margin-top:16px}
.cd-num{font-family:var(--font-serif);font-size:46px;color:var(--pink);line-height:1}
.cd-card.gold .cd-num{color:var(--gold)}
.cd-unit{font-size:12px;color:var(--text-2)}
.cd-card.today{border-color:var(--pink-deep);box-shadow:0 0 30px rgba(231,125,163,.25)}
.cd-card.today .cd-num{animation:beat 1.6s ease-in-out infinite}

/* ---------- 足迹地图 ---------- */
.map-box{
  max-width:980px;margin:0 auto;padding:18px;border-radius:var(--radius);
  background:var(--card);border:1px solid var(--card-border);
}
#mapHolder svg{width:100%;height:auto;display:block}
.map-prov{fill:rgba(255,255,255,.045);stroke:rgba(245,168,195,.22);stroke-width:.6}
.map-prov.hot{fill:rgba(245,168,195,.14)}
.map-point{cursor:pointer}
.map-point .halo{fill:rgba(231,125,163,.28);animation:haloPulse 2.4s ease-out infinite}
@keyframes haloPulse{0%{r:4;opacity:.9}100%{r:18;opacity:0}}
.map-tip{
  position:absolute;transform:translate(-50%,-130%);pointer-events:none;
  background:rgba(30,21,41,.95);border:1px solid rgba(245,168,195,.35);
  padding:6px 12px;border-radius:8px;font-size:12px;color:var(--text);white-space:nowrap;
  opacity:0;transition:opacity .2s;
}
.map-tip.show{opacity:1}
.place-list{
  max-width:980px;margin:18px auto 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
}
.place-chip{
  display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:99px;
  background:var(--card);border:1px solid var(--card-border);font-size:13px;
  transition:border-color .3s,transform .3s;cursor:default;
}
.place-chip:hover{border-color:var(--pink);transform:translateY(-2px)}
.place-chip .pc-loc{color:var(--pink)}
.place-chip .pc-date{color:var(--text-3);font-size:11px}
.map-empty{color:var(--text-3);text-align:center;padding:30px;font-size:13px}

/* ---------- 情话信箱 ---------- */
.letter-grid{
  max-width:900px;margin:0 auto;display:grid;
  grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px;
}
.envelope{
  position:relative;cursor:pointer;padding:22px 20px 18px;border-radius:12px;
  background:linear-gradient(160deg,rgba(245,168,195,.10),rgba(184,160,232,.08));
  border:1px solid rgba(245,168,195,.25);
  transition:transform .3s,box-shadow .3s;
}
.envelope:hover{transform:translateY(-4px) rotate(-.5deg);box-shadow:0 14px 34px rgba(0,0,0,.35)}
.envelope::before{
  content:"\2709";position:absolute;right:14px;top:10px;font-size:22px;color:rgba(245,168,195,.5);
}
.env-from{font-size:12px;color:var(--text-3);letter-spacing:1px}
.env-title{font-family:var(--font-serif);font-size:17px;margin:6px 0 4px}
.env-date{font-size:11px;color:var(--text-3)}
.env-excerpt{font-size:12px;color:var(--text-2);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.letter-empty{color:var(--text-3);text-align:center;padding:40px;font-size:13px;grid-column:1/-1}

/* 信件弹窗 */
#letterModal{
  position:fixed;inset:0;z-index:1150;display:none;
  align-items:center;justify-content:center;padding:5vw;
  background:rgba(8,5,13,.9);backdrop-filter:blur(6px);
}
#letterModal.open{display:flex}
#letterModal .lm-paper{
  position:relative;width:min(560px,94vw);max-height:82vh;overflow-y:auto;
  background:linear-gradient(175deg,#fdf8f2,#f7eee4);color:#4a3b45;
  padding:44px 40px 36px;border-radius:6px;
  box-shadow:0 30px 80px rgba(0,0,0,.5);
  transform:translateY(30px) scale(.96);opacity:0;transition:.45s cubic-bezier(.2,.9,.3,1.1);
  line-height:2;
}
#letterModal.open .lm-paper{transform:none;opacity:1}
.lm-paper::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:repeating-linear-gradient(90deg,var(--pink) 0 18px,transparent 18px 30px);opacity:.55;
}
.lm-date{font-size:12px;color:#a08a96;letter-spacing:2px}
.lm-title{font-family:var(--font-serif);font-size:22px;color:#8a4a63;margin:10px 0 16px}
.lm-body{font-size:14.5px;white-space:pre-wrap}
.lm-sign{margin-top:22px;text-align:right;color:#8a4a63;font-family:var(--font-serif)}
#letterModal .lm-close{
  position:absolute;top:22px;right:26px;font-size:28px;cursor:pointer;color:#ccc;z-index:2;
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:50%;
}
#letterModal .lm-close:hover{color:#fff;background:rgba(255,255,255,.08)}

/* ---------- 愿望清单 ---------- */
.wish-progress{max-width:640px;margin:0 auto 30px;text-align:center}
.wp-text{font-size:13px;color:var(--text-2);margin-bottom:10px}
.wp-text span{color:var(--pink);font-family:var(--font-serif);font-size:16px}
.wp-bar{height:8px;border-radius:99px;background:rgba(255,255,255,.07);overflow:hidden}
.wp-fill{
  height:100%;width:0;border-radius:99px;
  background:linear-gradient(90deg,var(--pink-deep),var(--purple));
  transition:width 1.2s cubic-bezier(.2,.8,.2,1);
}
.wish-grid{
  max-width:860px;margin:0 auto;display:grid;
  grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;
}
.wish-item{
  display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:12px;
  background:var(--card);border:1px solid var(--card-border);
  transition:transform .25s,border-color .25s;
}
.wish-item:hover{transform:translateX(4px);border-color:rgba(245,168,195,.4)}
.wish-check{
  flex:none;width:22px;height:22px;border-radius:50%;
  border:1.5px solid var(--text-3);display:flex;align-items:center;justify-content:center;
  font-size:12px;color:transparent;transition:.3s;
}
.wish-item.done .wish-check{
  background:linear-gradient(135deg,var(--pink-deep),var(--purple));
  border-color:transparent;color:#fff;
}
.wish-text{font-size:14px;color:var(--text)}
.wish-item.done .wish-text{color:var(--text-3);text-decoration:line-through;text-decoration-color:rgba(245,168,195,.5)}

/* ---------- 音乐唱针 ---------- */
#musicDisc{
  position:fixed;right:22px;bottom:22px;z-index:1050;cursor:pointer;
  width:52px;height:52px;
}
.disc-vinyl{
  width:46px;height:46px;margin:3px;border-radius:50%;
  background:repeating-radial-gradient(circle,#241a30 0 2px,#2e2140 2px 4px);
  border:2px solid rgba(245,168,195,.4);
  display:flex;align-items:center;justify-content:center;
}
.disc-core{width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,var(--pink-deep),var(--purple))}
.disc-note{
  position:absolute;top:-4px;right:-2px;font-size:14px;color:var(--pink);
  animation:beat 1.6s ease-in-out infinite;opacity:.9;
}
#musicDisc.playing .disc-vinyl{animation:spin 3.2s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 密码门 ---------- */
#gate{
  position:fixed;inset:0;z-index:1000;
  background:radial-gradient(1200px 700px at 50% 30%,#241634 0%,#17101f 60%);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .8s ease,visibility .8s;
}
#gate.hidden{opacity:0;visibility:hidden;pointer-events:none}
.gate-box{text-align:center;padding:20px;width:min(420px,92vw)}
.gate-heart{
  width:64px;height:64px;margin:0 auto 22px;
  background:rgba(245,168,195,.12);
  border:1px solid rgba(245,168,195,.35);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:26px;color:var(--pink);
  animation:beat 1.6s ease-in-out infinite;
}
@keyframes beat{0%,100%{transform:scale(1)}12%{transform:scale(1.12)}24%{transform:scale(1)}}
.gate-title{font-family:var(--font-serif);font-size:26px;letter-spacing:2px;margin-bottom:8px}
.gate-sub{color:var(--text-2);font-size:13px;margin-bottom:30px}
.gate-input{
  width:100%;padding:14px 18px;font-size:16px;letter-spacing:6px;text-align:center;
  background:rgba(255,255,255,.06);border:1px solid var(--card-border);border-radius:var(--radius);
  color:var(--text);outline:none;transition:border-color .3s;
}
.gate-input:focus{border-color:var(--pink)}
.gate-input.shake{animation:shake .4s;border-color:var(--pink-deep)}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-8px)}40%{transform:translateX(8px)}60%{transform:translateX(-5px)}80%{transform:translateX(5px)}}
.gate-tip{color:var(--text-3);font-size:12px;margin-top:16px}
.gate-tip b{color:var(--pink);font-weight:500}
.gate-admin{
  display:inline-block;margin-top:18px;font-size:12px;color:var(--text-3);
  opacity:.6;transition:opacity .3s,color .3s;letter-spacing:1px;
}
.gate-admin:hover{opacity:1;color:var(--pink)}

/* ---------- 顶部导航 ---------- */
nav{
  position:fixed;top:0;left:0;right:0;z-index:900;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 5vw;
  background:rgba(23,16,31,.75);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.nav-logo{font-family:var(--font-serif);font-size:15px;letter-spacing:1px;color:var(--pink)}
.nav-links{display:flex;gap:22px;font-size:13px;color:var(--text-2)}
.nav-links a{transition:color .25s;position:relative}
.nav-links a:hover{color:var(--pink)}
.nav-links a.active{color:var(--pink)}
.nav-links a.active::after{
  content:"";position:absolute;left:20%;right:20%;bottom:-4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--pink-deep),var(--purple));
}
@media(max-width:560px){
  .nav-links{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:16px}
  .nav-links::-webkit-scrollbar{display:none}
  .nav-links a{flex:none}
}

/* ---------- Hero 计时器 ---------- */
.hero{
  min-height:100vh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:100px 20px 60px;position:relative;
  background:radial-gradient(900px 520px at 50% 0%,rgba(231,125,163,.10) 0%,transparent 65%),
             radial-gradient(700px 480px at 85% 100%,rgba(184,160,232,.08) 0%,transparent 60%);
}
.hero-kicker{color:var(--text-2);font-size:12px;letter-spacing:4px;text-transform:uppercase;margin-bottom:20px}
.hero-names{font-family:var(--font-serif);font-size:clamp(28px,5.5vw,44px);margin-bottom:6px}
.hero-names .amp{color:var(--pink);font-size:.8em;padding:0 10px}
.hero-days{margin:26px 0 34px}
.days-num{font-family:var(--font-serif);font-size:clamp(52px,10vw,84px);color:var(--pink);line-height:1}
.days-label{color:var(--text-2);font-size:13px;margin-top:8px;letter-spacing:3px}
.counter{
  display:flex;gap:14px;flex-wrap:wrap;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.counter .unit{
  min-width:76px;padding:14px 10px;border-radius:var(--radius);
  background:var(--card);border:1px solid var(--card-border);
}
.counter .num{font-family:var(--font-serif);font-size:26px;color:var(--text)}
.counter .lbl{font-size:11px;color:var(--text-3);margin-top:2px}
.counter .unit.hl .num{color:var(--pink)}
.hero-sub{margin-top:30px;color:var(--text-2);font-size:13px}
.scroll-hint{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  color:var(--text-3);font-size:12px;display:flex;flex-direction:column;align-items:center;gap:6px;
}
.scroll-hint::after{content:"";width:1px;height:34px;background:linear-gradient(var(--pink),transparent);animation:drop 1.8s ease-in-out infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- 通用区块 ---------- */
.section{padding:90px 5vw}
.section-head{text-align:center;margin-bottom:54px}
.section-title{font-family:var(--font-serif);font-size:clamp(24px,4vw,32px)}
.section-title .deco{color:var(--pink)}
.section-sub{color:var(--text-2);font-size:13px;margin-top:10px}

/* ---------- 时间线 ---------- */
.timeline-wrap{max-width:900px;margin:0 auto;position:relative}
.timeline-wrap::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;
  background:linear-gradient(180deg,transparent,rgba(245,168,195,.35) 8%,rgba(184,160,232,.35) 92%,transparent);
}
.tl-item{
  position:relative;width:50%;padding:0 40px 46px;
}
.tl-item .dot{
  position:absolute;top:6px;width:11px;height:11px;border-radius:50%;
  background:var(--pink);box-shadow:0 0 0 4px rgba(245,168,195,.15);
}
.tl-item.left{left:0;text-align:right}
.tl-item.left .dot{right:-5.5px}
.tl-item.right{left:50%;text-align:left}
.tl-item.right .dot{left:-5.5px}
.tl-card{
  background:var(--card);border:1px solid var(--card-border);
  border-radius:var(--radius);padding:20px 22px;display:inline-block;
  text-align:left;max-width:100%;
  transition:transform .3s,box-shadow .3s;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,.35)}
.tl-date{font-size:12px;color:var(--text-3);letter-spacing:1px}
.tl-type{display:inline-block;font-size:11px;padding:2px 10px;border-radius:99px;margin-left:8px;vertical-align:1px;letter-spacing:1px}
.tl-type.milestone{background:rgba(245,168,195,.14);color:var(--pink);border:1px solid rgba(245,168,195,.3)}
.tl-type.anniv{background:rgba(232,201,160,.12);color:var(--gold);border:1px solid rgba(232,201,160,.3)}
.tl-type.daily{background:rgba(255,255,255,.06);color:var(--text-2);border:1px solid var(--card-border)}
.tl-title{font-family:var(--font-serif);font-size:19px;margin:8px 0 6px}
.tl-content{font-size:14px;color:var(--text-2);white-space:pre-wrap}
.tl-photo{margin-top:14px;border-radius:10px;overflow:hidden;cursor:pointer}
.tl-photo img{width:100%;height:auto;transition:transform .5s}
.tl-photo:hover img{transform:scale(1.04)}
/* 里程碑大卡片 */
.tl-item.milestone-item .tl-card{
  background:linear-gradient(150deg,rgba(245,168,195,.10),rgba(184,160,232,.08));
  border-color:rgba(245,168,195,.28);
  padding:24px 26px;
}
.tl-item.milestone-item .tl-title{font-size:22px;color:var(--pink)}
/* 周年自动节点更轻 */
.tl-item.anniv-auto .tl-card{background:rgba(232,201,160,.05);border-color:rgba(232,201,160,.15)}
.tl-item.anniv-auto .tl-title{color:var(--gold);font-size:16px}
@media(max-width:700px){
  .timeline-wrap::before{left:16px}
  .tl-item{width:100%;left:0!important;text-align:left;padding:0 0 30px 46px}
  .tl-item .dot{left:11px!important;right:auto!important}
}

/* ---------- 照片墙(瀑布流) ---------- */
.gallery-wrap{max-width:1080px;margin:0 auto}
.gallery{
  column-count:4;column-gap:14px;
}
@media(max-width:900px){.gallery{column-count:3}}
@media(max-width:620px){.gallery{column-count:2}}
.g-item{
  position:relative;border-radius:12px;overflow:hidden;cursor:pointer;
  background:var(--bg-3);border:1px solid var(--card-border);
  break-inside:avoid;margin-bottom:14px;
}
.g-item img{width:100%;height:auto;display:block;transition:transform .5s}
.g-item:hover img{transform:scale(1.05)}
.g-item .g-cap{
  position:absolute;left:0;right:0;bottom:0;padding:26px 12px 10px;
  background:linear-gradient(transparent,rgba(10,6,16,.85));
  font-size:12px;color:#eee;opacity:0;transition:opacity .3s;
}
.g-item:hover .g-cap{opacity:1}
.gallery-empty{color:var(--text-3);text-align:center;padding:40px;font-size:14px}

/* ---------- 灯箱 ---------- */
#lightbox{
  position:fixed;inset:0;z-index:1100;background:rgba(8,5,13,.92);
  display:none;align-items:center;justify-content:center;padding:4vw;
}
#lightbox.open{display:flex}
#lightbox img{max-width:100%;max-height:86vh;border-radius:10px}
#lightbox .lb-cap{position:absolute;bottom:5vh;left:0;right:0;text-align:center;color:#ddd;font-size:13px}
#lightbox .lb-close{
  position:absolute;top:20px;right:24px;font-size:30px;cursor:pointer;color:#bbb;
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:50%;
}
#lightbox .lb-close:hover{color:#fff;background:rgba(255,255,255,.08)}
#lightbox .lb-arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:46px;height:46px;border-radius:50%;cursor:pointer;color:#bbb;font-size:20px;
  display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.05);
  user-select:none;transition:.25s;
}
#lightbox .lb-arrow:hover{color:#fff;background:rgba(255,255,255,.14)}
#lightbox .lb-prev{left:2vw}
#lightbox .lb-next{right:2vw}
#lightbox img{animation:lbIn .3s ease}
@keyframes lbIn{from{opacity:.3;transform:scale(.97)}to{opacity:1;transform:none}}

/* ---------- 求婚彩蛋横幅 ---------- */
.proposal-banner{
  margin:20px auto 0;max-width:900px;text-align:center;
  padding:26px 20px;border-radius:var(--radius);
  background:linear-gradient(140deg,rgba(245,168,195,.12),rgba(184,160,232,.14));
  border:1px dashed rgba(245,168,195,.4);
}
.proposal-banner .pb-title{font-family:var(--font-serif);font-size:20px;color:var(--pink);margin-bottom:8px}
.proposal-banner .pb-sub{color:var(--text-2);font-size:13px;margin-bottom:16px}
.btn{
  display:inline-block;padding:12px 34px;border-radius:99px;font-size:14px;letter-spacing:1px;
  background:linear-gradient(135deg,var(--pink-deep),var(--purple));
  color:#fff;transition:transform .25s,box-shadow .25s;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(231,125,163,.35)}

/* ---------- Footer ---------- */
footer{
  text-align:center;padding:46px 20px 60px;color:var(--text-3);font-size:12px;
  border-top:1px solid rgba(255,255,255,.05);
}
footer .f-heart{color:var(--pink)}
.footer-admin{
  display:inline-block;margin-top:14px;font-size:11px;color:var(--text-3);
  opacity:.4;transition:opacity .3s,color .3s;letter-spacing:1px;
}
.footer-admin:hover{opacity:.9;color:var(--pink)}

/* ---------- 进入动画 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:none}

/* 时间线滚动点亮 */
.tl-item.visible .dot{animation:dotGlow 1.2s ease}
@keyframes dotGlow{
  0%{box-shadow:0 0 0 4px rgba(245,168,195,.15)}
  40%{box-shadow:0 0 0 10px rgba(245,168,195,.35),0 0 18px rgba(245,168,195,.8)}
  100%{box-shadow:0 0 0 4px rgba(245,168,195,.15)}
}
.tl-item.milestone-item .tl-card::before{
  content:"\2605 里程碑";position:absolute;top:0;right:0;
  font-size:10px;letter-spacing:1px;color:var(--gold);
  padding:3px 10px;border-radius:0 12px 0 10px;
  background:rgba(232,201,160,.12);border-left:1px solid rgba(232,201,160,.25);border-bottom:1px solid rgba(232,201,160,.25);
}
.tl-card{position:relative}
@media(max-width:700px){
  .tl-item.milestone-item .tl-card::before{border-radius:0 12px 0 10px}
}

/* ---------- Toast ---------- */
#toast{
  position:fixed;bottom:34px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--bg-3);border:1px solid var(--card-border);color:var(--text);
  padding:12px 22px;border-radius:99px;font-size:13px;opacity:0;transition:.35s;z-index:1200;
}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ============================================== */
/* 主题切换按钮 */
/* ============================================== */
.theme-toggle{
  flex:none;display:flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;border:none;cursor:pointer;
  background:var(--card);border:1px solid var(--card-border);
  font-size:17px;color:var(--text-2);transition:.3s;margin-left:10px;
}
.theme-toggle:hover{color:var(--pink);border-color:var(--pink);transform:rotate(20deg)}
/* 密码门上的切换按钮(盖在密码门之上) */
.gate-theme-toggle{
  position:fixed;top:18px;right:18px;z-index:1001;
  background:var(--card);border:1px solid var(--card-border);
  color:var(--text-2);
}

/* ============================================== */
/* 亮色主题 [data-theme="light"] */
/* ============================================== */
[data-theme="light"]{
  --bg:#fdf6f0;
  --bg-2:#f7eee2;
  --bg-3:#efe2d4;
  --card:rgba(255,255,255,.72);
  --card-border:rgba(196,69,105,.10);
  --text:#3d2b3a;
  --text-2:#7a5e6f;
  --text-3:#a8909a;
  --pink:#c44569;
  --pink-deep:#a93858;
  --purple:#8b5fbf;
  --gold:#d4a040;
  --green:#5fa05f;
}
/* 密码门 */
[data-theme="light"] #gate{
  background:radial-gradient(1200px 700px at 50% 30%,#fce8ed 0%,#fdf6f0 60%);
}
[data-theme="light"] .gate-heart{
  background:rgba(196,69,105,.1);
  border-color:rgba(196,69,105,.3);
}
[data-theme="light"] .gate-input{
  background:rgba(255,255,255,.85);
  border-color:rgba(196,69,105,.12);
}
/* 导航 */
[data-theme="light"] nav{
  background:rgba(253,246,240,.82);
  border-bottom:1px solid rgba(196,69,105,.08);
}
/* 灯箱 */
[data-theme="light"] #lightbox{background:rgba(255,250,245,.94)}
[data-theme="light"] #lightbox .lb-close{color:#888}
[data-theme="light"] #lightbox .lb-arrow{color:#888;background:rgba(0,0,0,.05)}
[data-theme="light"] #lightbox .lb-arrow:hover{color:#fff;background:rgba(0,0,0,.15)}
/* 信件弹窗背景 */
[data-theme="light"] #letterModal{background:rgba(255,250,245,.9)}
[data-theme="light"] #letterModal .lm-close{color:#999}
[data-theme="light"] #letterModal .lm-close:hover{color:#333;background:rgba(0,0,0,.06)}
/* 照片墙 caption */
[data-theme="light"] .g-item .g-cap{background:linear-gradient(transparent,rgba(61,43,58,.8))}
/* 地图 */
[data-theme="light"] .map-prov{fill:rgba(196,69,105,.035);stroke:rgba(196,69,105,.15)}
[data-theme="light"] .map-prov.hot{fill:rgba(196,69,105,.1)}
[data-theme="light"] .map-tip{
  background:rgba(255,255,255,.97);border-color:rgba(196,69,105,.2);color:#3d2b3a;
  box-shadow:0 4px 18px rgba(196,69,105,.12);
}
/* 愿望进度条 */
[data-theme="light"] .wp-bar{background:rgba(196,69,105,.08)}
/* Footer */
[data-theme="light"] footer{border-top:1px solid rgba(196,69,105,.08)}
/* Toast */
[data-theme="light"] #toast{background:#fff;box-shadow:0 4px 18px rgba(0,0,0,.1)}
/* 信箱信封 */
[data-theme="light"] .envelope{
  background:linear-gradient(160deg,rgba(196,69,105,.06),rgba(139,95,191,.05));
  border-color:rgba(196,69,105,.18);
}
[data-theme="light"] .envelope::before{color:rgba(196,69,105,.4)}
/* 求婚横幅 */
[data-theme="light"] .proposal-banner{
  background:linear-gradient(140deg,rgba(196,69,105,.06),rgba(139,95,191,.07));
  border-color:rgba(196,69,105,.25);
}
/* 时间线 */
[data-theme="light"] .tl-item.milestone-item .tl-card{
  background:linear-gradient(150deg,rgba(196,69,105,.06),rgba(139,95,191,.05));
  border-color:rgba(196,69,105,.2);
}
[data-theme="light"] .tl-item.anniv-auto .tl-card{background:rgba(212,160,64,.05);border-color:rgba(212,160,64,.2)}
[data-theme="light"] .tl-type.milestone{background:rgba(196,69,105,.1);color:var(--pink);border-color:rgba(196,69,105,.2)}
[data-theme="light"] .tl-type.anniv{background:rgba(212,160,64,.1);color:var(--gold);border-color:rgba(212,160,64,.2)}
[data-theme="light"] .tl-type.daily{background:rgba(0,0,0,.03);color:var(--text-2);border-color:var(--card-border)}
[data-theme="light"] .tl-item.milestone-item .tl-card::before{
  background:rgba(212,160,64,.12);border-color:rgba(212,160,64,.25);
}
/* hover 阴影更柔 */
[data-theme="light"] .cd-card:hover,
[data-theme="light"] .tl-card:hover,
[data-theme="light"] .envelope:hover{box-shadow:0 14px 36px rgba(196,69,105,.12)}