diff --git a/frontend/app/subscription-help/SubscriptionHelpClient.tsx b/frontend/app/subscription-help/SubscriptionHelpClient.tsx
index a2c17d5c..a9472d4f 100644
--- a/frontend/app/subscription-help/SubscriptionHelpClient.tsx
+++ b/frontend/app/subscription-help/SubscriptionHelpClient.tsx
@@ -64,47 +64,47 @@ export function SubscriptionHelpClient() {
   }), [isEn]);
 
   return (
-    <main className="min-h-screen bg-[#070d1d] px-4 py-10 text-slate-100">
+    <main className="min-h-screen bg-[#f4f7fb] px-4 py-10 text-slate-900">
       <div className="mx-auto w-full max-w-4xl">
         <Link
           href="/account"
-          className="mb-5 inline-flex items-center gap-2 rounded-xl border border-white/10 bg-white/5 px-3 py-2 text-sm text-slate-300 transition hover:bg-white/10"
+          className="mb-5 inline-flex items-center gap-2 rounded-lg border border-slate-200 bg-white px-3 py-2 text-sm font-semibold text-slate-600 shadow-sm transition hover:border-slate-300 hover:text-slate-950"
         >
           <ArrowLeft size={15} />
           {copy.back}
         </Link>
 
-        <section className="rounded-3xl border border-blue-400/20 bg-gradient-to-b from-[#162541] to-[#0e1730] p-6 md:p-8">
+        <section className="rounded-2xl border border-slate-200 bg-white p-6 shadow-sm md:p-8">
           <div className="mb-5 flex items-center gap-3">
-            <ShieldCheck className="text-cyan-300" size={22} />
+            <ShieldCheck className="text-blue-700" size={22} />
             <h1 className="text-2xl font-bold md:text-3xl">{copy.title}</h1>
           </div>
-          <p className="text-sm text-slate-300 md:text-base">{copy.description}</p>
+          <p className="text-sm text-slate-600 md:text-base">{copy.description}</p>
 
           <div className="mt-6 grid gap-3 md:grid-cols-3">
-            <div className="rounded-2xl border border-white/10 bg-white/5 p-4">
-              <div className="mb-2 flex items-center gap-2 text-cyan-300">
+            <div className="rounded-xl border border-slate-200 bg-slate-50 p-4">
+              <div className="mb-2 flex items-center gap-2 text-blue-700">
                 <CreditCard size={16} />
                 <span className="text-sm font-semibold">{copy.priceLabel}</span>
               </div>
               <p className="text-xl font-bold">{copy.priceText}</p>
             </div>
-            <div className="rounded-2xl border border-white/10 bg-white/5 p-4">
-              <div className="mb-2 flex items-center gap-2 text-emerald-300">
+            <div className="rounded-xl border border-slate-200 bg-slate-50 p-4">
+              <div className="mb-2 flex items-center gap-2 text-emerald-700">
                 <Coins size={16} />
                 <span className="text-sm font-semibold">{copy.discountLabel}</span>
               </div>
               <p className="text-xl font-bold">{copy.discountText}</p>
             </div>
-            <div className="rounded-2xl border border-white/10 bg-white/5 p-4">
-              <div className="mb-2 flex items-center gap-2 text-violet-300">
+            <div className="rounded-xl border border-slate-200 bg-slate-50 p-4">
+              <div className="mb-2 flex items-center gap-2 text-indigo-700">
                 <MessageSquare size={16} />
                 <span className="text-sm font-semibold">{copy.communityLabel}</span>
               </div>
               <Link
                 href={TELEGRAM_GROUP_URL}
                 target="_blank"
-                className="inline-flex min-h-9 items-center text-sm font-semibold text-blue-300 underline decoration-blue-500/50 underline-offset-4"
+                className="inline-flex min-h-9 items-center text-sm font-semibold text-blue-700 underline decoration-blue-500/50 underline-offset-4"
               >
                 {copy.communityLink}
               </Link>
@@ -112,19 +112,19 @@ export function SubscriptionHelpClient() {
           </div>
         </section>
 
-        <section className="mt-6 rounded-3xl border border-white/10 bg-[#0f162a]/80 p-6 md:p-8">
+        <section className="mt-6 rounded-2xl border border-slate-200 bg-white p-6 shadow-sm md:p-8">
           <h2 className="mb-4 text-lg font-bold">{copy.faqTitle}</h2>
           <div className="space-y-4">
             {FAQ_ITEMS.map((item) => (
               <article
                 key={item.q_en}
-                className="rounded-2xl border border-white/10 bg-white/[0.03] p-4"
+                className="rounded-xl border border-slate-200 bg-slate-50 p-4"
               >
-                <h3 className="mb-2 flex items-center gap-2 text-sm font-semibold text-blue-300">
+                <h3 className="mb-2 flex items-center gap-2 text-sm font-semibold text-blue-700">
                   <CheckCircle2 size={14} />
                   {isEn ? item.q_en : item.q_zh}
                 </h3>
-                <p className="text-sm leading-6 text-slate-300">
+                <p className="text-sm leading-6 text-slate-600">
                   {isEn ? item.a_en : item.a_zh}
                 </p>
               </article>
diff --git a/frontend/components/account/AccountCenter.tsx b/frontend/components/account/AccountCenter.tsx
index ab6f95fa..e62b64a5 100644
--- a/frontend/components/account/AccountCenter.tsx
+++ b/frontend/components/account/AccountCenter.tsx
@@ -2105,27 +2105,25 @@ export function AccountCenter() {
 
   if (loading && !refreshing) {
     return (
-      <div className="flex h-screen w-full items-center justify-center bg-[#0b0f1a]">
+      <div className="flex h-screen w-full items-center justify-center bg-[#f4f7fb]">
         <div className="flex flex-col items-center gap-4">
           <Loader2 className="h-12 w-12 animate-spin text-blue-500" />
-          <p className="text-slate-400 font-medium">{copy.loadingAccount}</p>
+          <p className="font-medium text-slate-500">{copy.loadingAccount}</p>
         </div>
       </div>
     );
   }
 
   return (
-    <div className="min-h-screen w-full bg-[#0b0f1a] text-slate-200 p-4 md:p-8 font-sans relative overflow-hidden flex flex-col items-center">
-      {/* Aurora Shadows */}
-      <div className="absolute top-0 right-0 w-[600px] h-[600px] bg-blue-600/10 rounded-full blur-[140px] pointer-events-none"></div>
-      <div className="absolute bottom-0 left-0 w-[600px] h-[600px] bg-purple-600/10 rounded-full blur-[140px] pointer-events-none"></div>
+    <div className="relative flex min-h-screen w-full flex-col items-center overflow-hidden bg-[#f4f7fb] p-4 font-sans text-slate-900 md:p-8">
+      <div className="absolute inset-x-0 top-0 h-20 border-b border-slate-200 bg-white"></div>
 
       {/* Header */}
       <header className="w-full max-w-6xl flex flex-col md:flex-row md:items-center justify-between gap-4 mb-8 z-20">
         <div className="flex items-center gap-4">
           <Link
             href="/"
-            className="p-2 bg-white/5 hover:bg-white/10 border border-white/10 rounded-full text-slate-400 hover:text-white transition-all active:scale-90 group"
+            className="group rounded-lg border border-slate-200 bg-white p-2 text-slate-500 shadow-sm transition-all hover:border-slate-300 hover:text-slate-950 active:scale-95"
             title={copy.backHome}
             aria-label={copy.backHome}
           >
@@ -2135,7 +2133,7 @@ export function AccountCenter() {
             />
           </Link>
           <div>
-            <h1 className="text-2xl font-bold text-white flex items-center gap-2">
+            <h1 className="flex items-center gap-2 text-2xl font-bold text-slate-950">
               {copy.accountCenter}
             </h1>
           </div>
@@ -2144,7 +2142,7 @@ export function AccountCenter() {
           {!showOverlay && canOpenCheckoutOverlay && (
             <button
               onClick={() => setShowOverlay(true)}
-              className="flex items-center gap-2 px-4 py-2 bg-yellow-500/10 hover:bg-yellow-500/20 border border-yellow-500/30 text-yellow-500 rounded-xl text-sm transition-all animate-pulse"
+              className="flex items-center gap-2 rounded-lg border border-amber-300 bg-amber-50 px-4 py-2 text-sm font-semibold text-amber-700 transition-all hover:bg-amber-100"
             >
               <Crown size={16} />{" "}
               {showExpiringSoon || showExpiredReminder
@@ -2155,7 +2153,7 @@ export function AccountCenter() {
           <button
             type="button"
             onClick={() => void onRefresh()}
-            className="flex items-center gap-2 px-4 py-2 bg-white/5 hover:bg-white/10 border border-white/10 rounded-xl text-sm transition-all disabled:opacity-50"
+            className="flex items-center gap-2 rounded-lg border border-slate-200 bg-white px-4 py-2 text-sm font-semibold text-slate-700 shadow-sm transition-all hover:border-slate-300 hover:text-slate-950 disabled:opacity-50"
             disabled={refreshing}
           >
             {refreshing ? (
@@ -2168,14 +2166,14 @@ export function AccountCenter() {
           {isAuthenticated ? (
             <button
               onClick={() => void onSignOut()}
-              className="flex items-center gap-2 px-4 py-2 bg-red-500/10 hover:bg-red-500/20 border border-red-500/20 text-red-400 rounded-xl text-sm transition-all"
+              className="flex items-center gap-2 rounded-lg border border-red-200 bg-red-50 px-4 py-2 text-sm font-semibold text-red-700 transition-all hover:bg-red-100"
             >
               <LogOut size={16} /> {copy.signOut}
             </button>
           ) : (
             <Link
               href="/auth/login?next=%2Faccount"
-              className="flex items-center gap-2 px-4 py-2 bg-blue-500/10 hover:bg-blue-500/20 border border-blue-500/20 text-blue-400 rounded-xl text-sm transition-all"
+              className="flex items-center gap-2 rounded-lg border border-blue-200 bg-blue-50 px-4 py-2 text-sm font-semibold text-blue-700 transition-all hover:bg-blue-100"
             >
               <LogIn size={16} /> {copy.signIn}
             </Link>
@@ -2185,23 +2183,23 @@ export function AccountCenter() {
 
       <main className="w-full max-w-6xl grid grid-cols-1 lg:grid-cols-12 gap-6 z-10 relative">
         {(showExpiringSoon || showExpiredReminder) && (
-          <div className="lg:col-span-12 rounded-[2rem] border border-amber-400/30 bg-amber-500/10 px-6 py-5 shadow-xl">
+          <div className="lg:col-span-12 rounded-2xl border border-amber-300 bg-amber-50 px-6 py-5 shadow-sm">
             <div className="flex flex-col gap-4 md:flex-row md:items-center md:justify-between">
               <div>
-                <div className="flex items-center gap-2 text-sm font-bold text-amber-300">
+                <div className="flex items-center gap-2 text-sm font-bold text-amber-700">
                   <Crown size={16} />
                   <span>{subscriptionStatusTitle}</span>
                 </div>
-                <p className="mt-1 text-sm text-amber-50/90">
+                <p className="mt-1 text-sm text-amber-900">
                   {subscriptionStatusBody}
                 </p>
                 {subscriptionStatusMeta ? (
-                  <p className="mt-1 text-xs text-amber-200/80">
+                  <p className="mt-1 text-xs text-amber-700">
                     {subscriptionStatusMeta}
                   </p>
                 ) : null}
                 {billing.canRedeem ? (
-                  <p className="mt-2 text-xs text-emerald-200/90">
+                    <p className="mt-2 text-xs text-emerald-700">
                     当前可用 {billing.pointsUsed} 积分抵扣 $
                     {billing.discountAmount.toFixed(2)}， 续费时会自动生效。
                   </p>
@@ -2210,7 +2208,7 @@ export function AccountCenter() {
               <button
                 type="button"
                 onClick={() => setShowOverlay(true)}
-                className="inline-flex items-center justify-center gap-2 rounded-xl border border-amber-300/35 bg-amber-300/12 px-4 py-2 text-sm font-bold text-amber-100 transition-all hover:bg-amber-300/20"
+                className="inline-flex items-center justify-center gap-2 rounded-lg border border-amber-300 bg-white px-4 py-2 text-sm font-bold text-amber-800 transition-all hover:bg-amber-100"
               >
                 <Crown size={16} />
                 {showExpiredReminder ? copy.renewNow : copy.upgradePro}
@@ -2220,39 +2218,39 @@ export function AccountCenter() {
         )}
 
         {/* User Card */}
-        <div className="lg:col-span-8 bg-white/5 backdrop-blur-xl border border-white/10 rounded-[2.5rem] p-8 shadow-2xl flex flex-col md:flex-row items-center gap-8">
+        <div className="flex flex-col items-center gap-8 rounded-2xl border border-slate-200 bg-white p-8 shadow-sm lg:col-span-8 md:flex-row">
           <div className="relative">
-            <div className="w-24 h-24 rounded-3xl bg-gradient-to-tr from-blue-600 to-indigo-400 flex items-center justify-center text-3xl font-bold text-white shadow-xl shadow-blue-500/30">
+            <div className="flex h-24 w-24 items-center justify-center rounded-xl border border-blue-200 bg-blue-600 text-3xl font-bold text-white shadow-sm">
               {initials}
             </div>
             <div
-              className={`absolute -bottom-2 -right-2 p-1.5 rounded-xl border-4 border-[#0b0f1a] ${isSubscribed ? "bg-yellow-500 text-black" : "bg-slate-700 text-slate-400"}`}
+              className={`absolute -bottom-2 -right-2 rounded-lg border-4 border-white p-1.5 ${isSubscribed ? "bg-amber-400 text-slate-950" : "bg-slate-100 text-slate-400"}`}
             >
               <Crown size={16} fill="currentColor" />
             </div>
           </div>
           <div className="flex-grow text-center md:text-left">
             <div className="flex items-center justify-center md:justify-start gap-3 mb-1">
-              <h2 className="text-3xl font-bold text-white">{displayName}</h2>
+              <h2 className="text-3xl font-bold text-slate-950">{displayName}</h2>
               <span
-                className={`px-2 py-0.5 rounded-full text-[10px] font-black uppercase tracking-tighter border ${isSubscribed ? "bg-blue-500/20 border-blue-500/40 text-blue-400" : "bg-slate-700/50 border-white/10 text-slate-500"}`}
+                className={`rounded-full border px-2 py-0.5 text-[10px] font-black uppercase ${isSubscribed ? "border-blue-200 bg-blue-50 text-blue-700" : "border-slate-200 bg-slate-50 text-slate-500"}`}
               >
                 {isSubscribed
                   ? copy.proMember
                   : copy.freeTier}
               </span>
             </div>
-            <p className="text-slate-500 font-mono text-sm mb-4">
+            <p className="mb-4 font-mono text-sm text-slate-500">
               {email || copy.guestUser}
             </p>
             <div className="flex flex-wrap justify-center md:justify-start gap-4">
-              <div className="flex items-center gap-1.5 text-slate-400 text-xs">
+              <div className="flex items-center gap-1.5 text-xs text-slate-500">
                 <Hash size={14} />{" "}
                 <span className="font-mono">
                   {userId ? `${userId.substring(0, 12)}...` : "--"}
                 </span>
               </div>
-              <div className="flex items-center gap-1.5 text-slate-400 text-xs">
+              <div className="flex items-center gap-1.5 text-xs text-slate-500">
                 <Clock size={14} />{" "}
                 <span>
                   {copy.joinedAt}: {joinedAt}
@@ -2261,29 +2259,29 @@ export function AccountCenter() {
             </div>
           </div>
           <div className="flex flex-col gap-3">
-            <div className="px-6 py-4 bg-black/40 rounded-2xl border border-white/5 text-center min-w-[140px]">
-              <p className="text-[10px] text-slate-500 uppercase tracking-widest mb-1">
+            <div className="min-w-[140px] rounded-xl border border-slate-200 bg-slate-50 px-6 py-4 text-center">
+              <p className="mb-1 text-[10px] uppercase text-slate-500">
                 {copy.totalPoints}
               </p>
-              <p className="text-xl font-bold text-white flex items-center justify-center gap-2">
+              <p className="flex items-center justify-center gap-2 text-xl font-bold text-slate-950">
                 <Coins size={16} className="text-yellow-500" />{" "}
                 {totalPoints.toLocaleString()}
               </p>
             </div>
-            <div className="px-6 py-4 bg-emerald-500/10 rounded-2xl border border-emerald-500/20 text-center min-w-[140px]">
-              <p className="text-[10px] text-emerald-300 uppercase tracking-widest mb-1 font-bold">
+            <div className="min-w-[140px] rounded-xl border border-emerald-200 bg-emerald-50 px-6 py-4 text-center">
+              <p className="mb-1 text-[10px] font-bold uppercase text-emerald-700">
                 {copy.weeklyPoints}
               </p>
-              <p className="text-xl font-bold text-white flex items-center justify-center gap-2">
+              <p className="flex items-center justify-center gap-2 text-xl font-bold text-slate-950">
                 <TrendingUp size={16} className="text-emerald-400" />{" "}
                 {weeklyPoints.toLocaleString()}
               </p>
             </div>
-            <div className="px-6 py-4 bg-blue-500/10 rounded-2xl border border-blue-500/20 text-center min-w-[140px]">
-              <p className="text-[10px] text-blue-400 uppercase tracking-widest mb-1 font-bold">
+            <div className="min-w-[140px] rounded-xl border border-blue-200 bg-blue-50 px-6 py-4 text-center">
+              <p className="mb-1 text-[10px] font-bold uppercase text-blue-700">
                 {copy.weeklyRank}
               </p>
-              <p className="text-xl font-bold text-white flex items-center justify-center gap-2">
+              <p className="flex items-center justify-center gap-2 text-xl font-bold text-slate-950">
                 <Trophy size={16} className="text-amber-400" />{" "}
                 {weeklyRank === "--" ? weeklyRank : `#${weeklyRank}`}
               </p>
@@ -2293,36 +2291,36 @@ export function AccountCenter() {
 
         {/* Weekly Ranking Motivation */}
         {showSecondarySections ? (
-          <div className="lg:col-span-4 bg-gradient-to-br from-indigo-600/20 to-purple-600/20 border border-indigo-500/30 rounded-[2.5rem] p-6 flex flex-col justify-between shadow-xl">
+          <div className="flex flex-col justify-between rounded-2xl border border-slate-200 bg-white p-6 shadow-sm lg:col-span-4">
             <div>
-              <h3 className="text-lg font-bold flex items-center gap-2 text-white mb-6">
-                <Sparkles size={20} className="text-yellow-400" />{" "}
+              <h3 className="mb-6 flex items-center gap-2 text-lg font-bold text-slate-950">
+                <Sparkles size={20} className="text-amber-500" />{" "}
                 {copy.weeklyRewards}
               </h3>
               <div className="space-y-3">
-                <div className="flex items-center justify-between p-3 bg-white/5 rounded-xl border border-white/5">
+                <div className="flex items-center justify-between rounded-xl border border-slate-200 bg-slate-50 p-3">
                   <span className="text-sm flex items-center gap-2">
                     <div className="w-5 h-5 bg-yellow-500 rounded text-black font-bold text-[10px] flex items-center justify-center">
                       1
                     </div>{" "}
                     Top 1
                   </span>
-                  <span className="text-xs font-bold text-yellow-500">
+                  <span className="text-xs font-bold text-amber-600">
                     +200 积分 & 7天Pro
                   </span>
                 </div>
-                <div className="flex items-center justify-between p-3 bg-white/5 rounded-xl border border-white/5">
+                <div className="flex items-center justify-between rounded-xl border border-slate-200 bg-slate-50 p-3">
                   <span className="text-sm flex items-center gap-2">
                     <div className="w-5 h-5 bg-slate-300 rounded text-black font-bold text-[10px] flex items-center justify-center">
                       2
                     </div>{" "}
                     Top 2-3
                   </span>
-                  <span className="text-xs font-bold text-slate-300">
+                  <span className="text-xs font-bold text-slate-600">
                     +100 积分
                   </span>
                 </div>
-                <div className="flex items-center justify-between p-3 bg-white/5 rounded-xl border border-white/5">
+                <div className="flex items-center justify-between rounded-xl border border-slate-200 bg-slate-50 p-3">
                   <span className="text-sm flex items-center gap-2">
                     <div className="w-5 h-5 bg-orange-800 rounded text-white font-bold text-[10px] flex items-center justify-center">
                       4
@@ -2335,7 +2333,7 @@ export function AccountCenter() {
                 </div>
               </div>
             </div>
-            <div className="mt-6 flex items-start gap-2 p-3 bg-black/20 rounded-xl">
+            <div className="mt-6 flex items-start gap-2 rounded-xl border border-slate-200 bg-slate-50 p-3">
               <Info size={14} className="text-slate-500 mt-0.5 shrink-0" />
               <p className="text-[10px] text-slate-500 leading-normal italic">
                 积分规则：群内有效发言（自动防刷检测）+
@@ -2344,12 +2342,12 @@ export function AccountCenter() {
             </div>
           </div>
         ) : (
-          <div className="lg:col-span-4 rounded-[2.5rem] border border-white/10 bg-white/5 p-6">
-            <div className="h-6 w-40 animate-pulse rounded bg-slate-800/80" />
+          <div className="rounded-2xl border border-slate-200 bg-white p-6 lg:col-span-4">
+            <div className="h-6 w-40 animate-pulse rounded bg-slate-200" />
             <div className="mt-4 space-y-2">
-              <div className="h-12 animate-pulse rounded-xl bg-slate-800/60" />
-              <div className="h-12 animate-pulse rounded-xl bg-slate-800/60" />
-              <div className="h-12 animate-pulse rounded-xl bg-slate-800/60" />
+              <div className="h-12 animate-pulse rounded-xl bg-slate-100" />
+              <div className="h-12 animate-pulse rounded-xl bg-slate-100" />
+              <div className="h-12 animate-pulse rounded-xl bg-slate-100" />
             </div>
           </div>
         )}
@@ -2359,8 +2357,8 @@ export function AccountCenter() {
           <div
             className={`grid grid-cols-1 md:grid-cols-2 gap-6 transition-all duration-700 ${canOpenCheckoutOverlay && showOverlay ? "blur-md grayscale-[0.3] opacity-30 select-none pointer-events-none" : ""}`}
           >
-            <section className="bg-white/5 border border-white/10 rounded-[2rem] p-6 space-y-3">
-              <h3 className="text-sm font-bold text-blue-400 uppercase tracking-widest mb-4">
+            <section className="space-y-3 rounded-2xl border border-slate-200 bg-white p-6 shadow-sm">
+              <h3 className="mb-4 text-sm font-bold uppercase text-blue-700">
                 {copy.membershipDetails}
               </h3>
               <InfoRow
@@ -2392,8 +2390,8 @@ export function AccountCenter() {
                 isPrimary={isSubscribed}
               />
             </section>
-            <section className="bg-white/5 border border-white/10 rounded-[2rem] p-6 space-y-3">
-              <h3 className="text-sm font-bold text-indigo-400 uppercase tracking-widest mb-4">
+            <section className="space-y-3 rounded-2xl border border-slate-200 bg-white p-6 shadow-sm">
+              <h3 className="mb-4 text-sm font-bold uppercase text-indigo-700">
                 {copy.identityStatus}
               </h3>
               <InfoRow
@@ -2418,7 +2416,7 @@ export function AccountCenter() {
                 value={backend?.authenticated ? copy.passed : copy.restricted}
               />
               {queuedExtensionSummary ? (
-                <p className="rounded-2xl border border-cyan-400/20 bg-cyan-500/10 px-4 py-3 text-xs text-cyan-100">
+                <p className="rounded-xl border border-cyan-200 bg-cyan-50 px-4 py-3 text-xs text-cyan-800">
                   {queuedExtensionSummary}
                 </p>
               ) : null}
@@ -2464,16 +2462,16 @@ export function AccountCenter() {
         {showSecondarySections ? (
           <div className="lg:col-span-12 grid grid-cols-1 md:flex gap-6">
             {canAccessPaidTelegramGroup && (
-              <section className="flex-1 bg-white/5 border border-white/10 rounded-[2rem] p-8 relative overflow-hidden group">
+              <section className="group relative flex-1 overflow-hidden rounded-2xl border border-slate-200 bg-white p-8 shadow-sm">
               <Bot
                 size={140}
-                className="absolute -right-8 -bottom-8 text-white/5 -rotate-12 group-hover:rotate-0 transition-transform duration-1000"
+                className="absolute -right-8 -bottom-8 -rotate-12 text-slate-100 transition-transform duration-1000 group-hover:rotate-0"
               />
               <div className="relative z-10">
-                <h3 className="text-lg font-bold mb-2 flex items-center gap-2 text-blue-400">
+                <h3 className="mb-2 flex items-center gap-2 text-lg font-bold text-blue-700">
                   <Bot size={22} /> {copy.telegramBind}
                 </h3>
-                <p className="text-slate-400 text-sm mb-6">
+                <p className="mb-6 text-sm text-slate-500">
                   {copy.telegramHint}
                 </p>
 
@@ -2485,7 +2483,7 @@ export function AccountCenter() {
                       href={TELEGRAM_TOPICS_GROUP_URL}
                       target="_blank"
                       rel="noreferrer"
-                      className="inline-flex min-h-9 items-center gap-1 rounded-lg border border-emerald-400/30 bg-emerald-500/10 px-3 py-2 text-xs font-semibold text-emerald-200 hover:bg-emerald-500/20"
+                      className="inline-flex min-h-9 items-center gap-1 rounded-lg border border-emerald-200 bg-emerald-50 px-3 py-2 text-xs font-semibold text-emerald-700 hover:bg-emerald-100"
                     >
                       {copy.telegramTopicsGroupLink}
                       <ExternalLink size={12} />
@@ -2496,7 +2494,7 @@ export function AccountCenter() {
                       href={TELEGRAM_GROUP_URL}
                       target="_blank"
                       rel="noreferrer"
-                      className="inline-flex min-h-9 items-center gap-1 rounded-lg border border-blue-400/30 bg-blue-500/10 px-3 py-2 text-xs font-semibold text-blue-200 hover:bg-blue-500/20"
+                      className="inline-flex min-h-9 items-center gap-1 rounded-lg border border-blue-200 bg-blue-50 px-3 py-2 text-xs font-semibold text-blue-700 hover:bg-blue-100"
                     >
                       {copy.telegramGroupLink}
                       <ExternalLink size={12} />
@@ -2504,13 +2502,13 @@ export function AccountCenter() {
                   ) : null}
                 </div>
                 <div className="flex gap-2">
-                  <code className="flex-grow bg-black/40 border border-white/10 p-4 rounded-xl font-mono text-xs text-blue-300 overflow-hidden text-ellipsis whitespace-nowrap">
+                  <code className="flex-grow overflow-hidden text-ellipsis whitespace-nowrap rounded-xl border border-slate-200 bg-slate-50 p-4 font-mono text-xs text-blue-700">
                     {bindCommand}
                   </code>
                   <button
                     onClick={() => void openTelegramBotBindLink()}
                     disabled={telegramBindOpening || !isAuthenticated}
-                    className="px-4 py-3 bg-cyan-600 hover:bg-cyan-500 disabled:opacity-50 disabled:cursor-not-allowed rounded-xl transition-all shadow-lg text-white text-xs font-bold"
+                    className="rounded-xl border border-cyan-700 bg-cyan-600 px-4 py-3 text-xs font-bold text-white shadow-sm transition-all hover:bg-cyan-700 disabled:cursor-not-allowed disabled:opacity-50"
                     title={copy.telegramBotBindLink}
                     aria-label={copy.telegramBotBindLink}
                   >
@@ -2518,7 +2516,7 @@ export function AccountCenter() {
                   </button>
                   <button
                     onClick={() => handleCopy(bindCommand)}
-                    className="p-4 bg-blue-600 hover:bg-blue-500 rounded-xl transition-all shadow-lg text-white"
+                    className="rounded-xl border border-blue-700 bg-blue-600 p-4 text-white shadow-sm transition-all hover:bg-blue-700"
                     title={copy.copyCommand}
                     aria-label={copy.copyCommand}
                   >
@@ -2528,7 +2526,7 @@ export function AccountCenter() {
                 <p className="mt-2 text-[11px] leading-5 text-slate-400">
                   {copy.telegramFallbackHint}
                 </p>
-                <div className="mt-5 rounded-2xl border border-amber-400/25 bg-amber-500/8 px-4 py-3 text-xs leading-6 text-amber-100/90">
+                <div className="mt-5 rounded-xl border border-amber-200 bg-amber-50 px-4 py-3 text-xs leading-6 text-amber-800">
                   {copy.paymentManualSupport}
                 </div>
               </div>
@@ -2536,27 +2534,27 @@ export function AccountCenter() {
             )}
 
             {/* Payment Details / Wallet Management */}
-            <section className={`bg-white/5 border border-white/10 rounded-[2rem] p-8 flex flex-col justify-between ${
+            <section className={`flex flex-col justify-between rounded-2xl border border-slate-200 bg-white p-8 shadow-sm ${
               canAccessPaidTelegramGroup ? "w-full md:w-96" : "w-full"
             }`}>
               <div>
-                <h3 className="text-blue-400 text-sm font-bold uppercase tracking-widest mb-6 flex items-center gap-2">
+                <h3 className="mb-6 flex items-center gap-2 text-sm font-bold uppercase text-blue-700">
                   <Wallet size={18} /> {copy.paymentMgmt}
                 </h3>
                 {paymentError ? (
-                  <div className="mb-4 rounded-xl border border-red-400/40 bg-red-500/10 px-3 py-2 text-[11px] text-red-200">
+                  <div className="mb-4 rounded-xl border border-red-200 bg-red-50 px-3 py-2 text-[11px] text-red-700">
                     {paymentError}
                   </div>
                 ) : null}
                 {!paymentError && paymentInfo ? (
-                  <div className="mb-4 rounded-xl border border-cyan-400/35 bg-cyan-500/10 px-3 py-2 text-[11px] text-cyan-200">
+                  <div className="mb-4 rounded-xl border border-cyan-200 bg-cyan-50 px-3 py-2 text-[11px] text-cyan-800">
                     {paymentInfo}
                     {telegramBindUrl ? (
                       <a
                         href={telegramBindUrl}
                         target="_blank"
                         rel="noopener noreferrer"
-                        className="block mt-1 underline text-cyan-400 hover:text-cyan-300 break-all"
+                        className="mt-1 block break-all text-cyan-700 underline hover:text-cyan-900"
                       >
                         {telegramBindUrl}
                       </a>
@@ -2564,7 +2562,7 @@ export function AccountCenter() {
                   </div>
                 ) : null}
                 {!paymentHostAllowed ? (
-                  <div className="mb-4 rounded-xl border border-amber-400/40 bg-amber-500/10 px-3 py-2 text-[11px] text-amber-200">
+                  <div className="mb-4 rounded-xl border border-amber-200 bg-amber-50 px-3 py-2 text-[11px] text-amber-800">
                     {copy.paymentHostBlocked.replace(
                       "{host}",
                       allowedPaymentHosts[0] || "polyweather-pro.vercel.app",
@@ -2604,7 +2602,7 @@ export function AccountCenter() {
                 </div>
                 {availableTokenList.length > 0 && (
                   <div className="mb-5">
-                    <p className="text-[11px] uppercase tracking-widest text-slate-500 mb-2">
+                    <p className="mb-2 text-[11px] uppercase text-slate-500">
                       {copy.paymentToken}
                     </p>
                     <div className="grid grid-cols-2 gap-2">
@@ -2622,8 +2620,8 @@ export function AccountCenter() {
                             disabled={paymentBusy}
                             className={`rounded-xl border px-3 py-2 text-left transition-all ${
                               active
-                                ? "bg-blue-500/15 border-blue-500/40 text-white"
-                                : "bg-white/5 border-white/10 text-slate-400 hover:bg-white/10"
+                                ? "border-blue-300 bg-blue-50 text-blue-900"
+                                : "border-slate-200 bg-white text-slate-600 hover:bg-slate-50"
                             }`}
                           >
                             <div className="text-xs font-bold">
@@ -2640,18 +2638,18 @@ export function AccountCenter() {
                 )}
 
                 {/* 支付方式选择 Tabs */}
-                <div className="mt-6 border-t border-white/10 pt-6">
-                  <p className="text-[10px] uppercase tracking-widest text-slate-500 mb-3 font-semibold">
+                <div className="mt-6 border-t border-slate-200 pt-6">
+                  <p className="mb-3 text-[10px] font-semibold uppercase text-slate-500">
                     {copy.paymentMethodLabel}
                   </p>
-                  <div className="grid grid-cols-2 gap-2 p-1 rounded-xl bg-black/40 border border-white/5 mb-5">
+                  <div className="mb-5 grid grid-cols-2 gap-2 rounded-xl border border-slate-200 bg-slate-100 p-1">
                     <button
                       type="button"
                       onClick={() => setPaymentMethodTab("wallet")}
                       className={`py-2 rounded-lg text-xs font-bold transition-all flex items-center justify-center gap-1.5 ${
                         paymentMethodTab === "wallet"
-                          ? "bg-blue-600/95 text-white shadow-lg"
-                          : "text-slate-400 hover:text-slate-200 hover:bg-white/5"
+                          ? "bg-white text-blue-700 shadow-sm"
+                          : "text-slate-500 hover:bg-white/70 hover:text-slate-900"
                       }`}
                     >
                       <Wallet size={12} />
@@ -2662,8 +2660,8 @@ export function AccountCenter() {
                       onClick={() => setPaymentMethodTab("manual")}
                       className={`py-2 rounded-lg text-xs font-bold transition-all flex items-center justify-center gap-1.5 ${
                         paymentMethodTab === "manual"
-                          ? "bg-emerald-600/95 text-white shadow-lg"
-                          : "text-slate-400 hover:text-slate-200 hover:bg-white/5"
+                          ? "bg-white text-emerald-700 shadow-sm"
+                          : "text-slate-500 hover:bg-white/70 hover:text-slate-900"
                       }`}
                     >
                       <ExternalLink size={12} />
@@ -2676,7 +2674,7 @@ export function AccountCenter() {
                       <p className="text-[11px] leading-relaxed text-slate-400">
                         {copy.paymentWalletDesc}
                       </p>
-                      <div className="rounded-xl border border-amber-400/20 bg-amber-500/10 p-3 text-[11px] leading-relaxed text-amber-100">
+                      <div className="rounded-xl border border-amber-200 bg-amber-50 p-3 text-[11px] leading-relaxed text-amber-800">
                         {copy.paymentGasWarning}
                       </div>
                       
@@ -2687,8 +2685,8 @@ export function AccountCenter() {
                               key={w.address}
                               className={`p-3 rounded-xl border transition-all ${
                                 selectedWallet === w.address
-                                  ? "bg-blue-500/10 border-blue-500/30 text-white"
-                                  : "bg-white/5 border-white/5 text-slate-400"
+                                  ? "border-blue-300 bg-blue-50 text-blue-900"
+                                  : "border-slate-200 bg-white text-slate-600"
                               }`}
                             >
                               <div className="flex items-center justify-between mb-1">
@@ -2707,7 +2705,7 @@ export function AccountCenter() {
                                   type="button"
                                   onClick={() => void handleUnbindWallet(w.address)}
                                   disabled={paymentBusy}
-                                  className="inline-flex items-center gap-1 rounded-md border border-red-500/30 bg-red-500/10 px-2 py-1 text-[10px] font-semibold text-red-300 transition-all hover:bg-red-500/20 disabled:opacity-50"
+                                  className="inline-flex items-center gap-1 rounded-md border border-red-200 bg-red-50 px-2 py-1 text-[10px] font-semibold text-red-700 transition-all hover:bg-red-100 disabled:opacity-50"
                                 >
                                   <Minus size={12} />
                                   {copy.unbind}
@@ -2717,7 +2715,7 @@ export function AccountCenter() {
                           ))}
                         </div>
                       ) : (
-                        <div className="p-4 rounded-xl border border-white/5 bg-white/5 text-center">
+                        <div className="rounded-xl border border-slate-200 bg-slate-50 p-4 text-center">
                           <p className="text-xs text-slate-400 italic">
                             {copy.noWallet}
                           </p>
@@ -2727,7 +2725,7 @@ export function AccountCenter() {
                       <div className="grid grid-cols-1 gap-2 pt-2">
                         {injectedProviderOptions.length > 1 && (
                           <label className="mb-2 block">
-                            <span className="mb-2 block text-[11px] uppercase tracking-widest text-slate-500">
+                            <span className="mb-2 block text-[11px] uppercase text-slate-500">
                               {copy.walletExtensionDetected}
                             </span>
                             <select
@@ -2736,13 +2734,13 @@ export function AccountCenter() {
                                 setSelectedInjectedProviderKey(event.target.value)
                               }
                               disabled={paymentBusy}
-                              className="w-full rounded-xl border border-white/10 bg-white/5 px-3 py-3 text-xs text-slate-200 outline-none transition-all hover:bg-white/10 disabled:opacity-60"
+                              className="w-full rounded-xl border border-slate-300 bg-white px-3 py-3 text-xs text-slate-900 outline-none transition-all hover:bg-slate-50 disabled:opacity-60"
                             >
                               {injectedProviderOptions.map((option) => (
                                 <option
                                   key={option.key}
                                   value={option.key}
-                                  className="bg-slate-900 text-slate-200"
+                                  className="bg-white text-slate-900"
                                 >
                                   {option.label}
                                 </option>
@@ -2756,7 +2754,7 @@ export function AccountCenter() {
                             void connectAndBindWallet("auto");
                           }}
                           disabled={paymentBusy || !isAuthenticated}
-                          className="w-full py-3 border border-white/10 bg-white/5 hover:bg-white/10 rounded-xl text-xs font-bold text-slate-300 transition-all flex items-center justify-center gap-2 disabled:opacity-60"
+                          className="flex w-full items-center justify-center gap-2 rounded-xl border border-slate-300 bg-white py-3 text-xs font-bold text-slate-700 transition-all hover:bg-slate-50 disabled:opacity-60"
                         >
                           <PlusIcon className="w-4 h-4" /> {copy.bindExt}
                         </button>
@@ -2768,7 +2766,7 @@ export function AccountCenter() {
                           disabled={
                             paymentBusy || !isAuthenticated || !walletConnectEnabled
                           }
-                          className="w-full py-3 border border-cyan-400/30 bg-cyan-500/10 hover:bg-cyan-500/20 rounded-xl text-xs font-bold text-cyan-300 transition-all flex items-center justify-center gap-2 disabled:opacity-60"
+                          className="flex w-full items-center justify-center gap-2 rounded-xl border border-cyan-200 bg-cyan-50 py-3 text-xs font-bold text-cyan-700 transition-all hover:bg-cyan-100 disabled:opacity-60"
                         >
                           <CreditCard className="w-4 h-4" /> {copy.bindQr}
                         </button>
@@ -2788,13 +2786,13 @@ export function AccountCenter() {
                         {copy.paymentManualDesc}
                       </p>
                       
-                      <div className="rounded-2xl border border-emerald-400/25 bg-emerald-500/8 p-4">
+                      <div className="rounded-2xl border border-emerald-200 bg-emerald-50 p-4">
                         <div className="flex flex-col gap-3">
                           <div>
-                            <p className="text-xs font-bold text-emerald-200">
+                            <p className="text-xs font-bold text-emerald-800">
                               {copy.paymentManualTitle}
                             </p>
-                            <p className="mt-1 text-[11px] leading-relaxed text-emerald-100/75">
+                            <p className="mt-1 text-[11px] leading-relaxed text-emerald-700">
                               {copy.paymentManualHint}
                             </p>
                           </div>
@@ -2802,18 +2800,18 @@ export function AccountCenter() {
                             type="button"
                             onClick={() => void createManualPaymentIntent()}
                             disabled={paymentBusy || !isAuthenticated}
-                            className="w-full rounded-xl border border-emerald-400/35 bg-emerald-500/15 py-2.5 text-xs font-bold text-emerald-100 transition-all hover:bg-emerald-500/25 disabled:opacity-50"
+                            className="w-full rounded-xl border border-emerald-700 bg-emerald-600 py-2.5 text-xs font-bold text-white transition-all hover:bg-emerald-700 disabled:opacity-50"
                           >
                             {copy.paymentManualCreate}
                           </button>
                         </div>
                         {manualPayment ? (
-                          <div className="mt-4 space-y-3 rounded-xl border border-white/10 bg-black/25 p-3">
+                          <div className="mt-4 space-y-3 rounded-xl border border-emerald-200 bg-white p-3">
                             <div>
                               <p className="text-[10px] uppercase tracking-widest text-slate-500">
                                 {copy.paymentAmount}
                               </p>
-                              <p className="font-mono text-sm font-bold text-white">
+                              <p className="font-mono text-sm font-bold text-slate-950">
                                 {manualPayment.amount_usdc}{" "}
                                 {manualPayment.token_symbol || selectedTokenLabel}
                               </p>
@@ -2823,7 +2821,7 @@ export function AccountCenter() {
                                 {copy.paymentReceiverLabel}
                               </p>
                               <div className="mt-1 flex gap-2">
-                                <code className="min-w-0 flex-1 break-all whitespace-normal rounded-lg bg-black/40 px-2 py-2 font-mono text-[11px] text-blue-200">
+                                <code className="min-w-0 flex-1 break-all whitespace-normal rounded-lg border border-blue-200 bg-blue-50 px-2 py-2 font-mono text-[11px] text-blue-800">
                                   {manualPayment.receiver_address}
                                 </code>
                                 <button
@@ -2831,7 +2829,7 @@ export function AccountCenter() {
                                   onClick={() =>
                                     handleCopy(manualPayment.receiver_address)
                                   }
-                                  className="rounded-lg bg-blue-600 px-2 text-xs font-bold text-white transition-colors hover:bg-blue-500"
+                                  className="rounded-lg border border-blue-700 bg-blue-600 px-2 text-xs font-bold text-white transition-colors hover:bg-blue-700"
                                 >
                                   {copy.paymentCopyAddress}
                                 </button>
@@ -2853,19 +2851,19 @@ export function AccountCenter() {
                                   );
                                 }}
                                 placeholder="0x..."
-                                className="mt-1 w-full rounded-xl border border-white/10 bg-black/30 px-3 py-2 font-mono text-xs text-slate-100 outline-none focus:border-emerald-400/50"
+                                className="mt-1 w-full rounded-xl border border-slate-300 bg-white px-3 py-2 font-mono text-xs text-slate-950 outline-none focus:border-emerald-500 focus:ring-2 focus:ring-emerald-500/20"
                               />
                               {txValidation.loading ? (
                                 <p className="mt-1 text-[10px] text-slate-500">
                                   验证中...
                                 </p>
                               ) : txValidation.checked && txValidation.valid ? (
-                                <p className="mt-1 text-[10px] text-emerald-400">
+                                <p className="mt-1 text-[10px] text-emerald-700">
                                   收款地址和金额匹配
                                 </p>
                               ) : txValidation.checked &&
                                 txValidation.valid === false ? (
-                                <p className="mt-1 text-[10px] text-red-400">
+                                <p className="mt-1 text-[10px] text-red-700">
                                   {txValidation.reason ===
                                   "tx_not_mined"
                                     ? "交易未上链，请等待"
@@ -2890,7 +2888,7 @@ export function AccountCenter() {
                                 paymentBusy ||
                                 (txValidation.checked && !txValidation.valid)
                               }
-                              className="w-full rounded-xl bg-emerald-600 px-3 py-2 text-xs font-bold text-white transition-all hover:bg-emerald-500 disabled:opacity-50"
+                              className="w-full rounded-xl border border-emerald-700 bg-emerald-600 px-3 py-2 text-xs font-bold text-white transition-all hover:bg-emerald-700 disabled:opacity-50"
                             >
                               {copy.paymentManualSubmit}
                             </button>
@@ -2905,8 +2903,8 @@ export function AccountCenter() {
           </div>
         ) : (
           <div className="lg:col-span-12 grid grid-cols-1 gap-6 md:grid-cols-3">
-            <div className="md:col-span-2 h-48 animate-pulse rounded-[2rem] border border-white/10 bg-white/5" />
-            <div className="h-48 animate-pulse rounded-[2rem] border border-white/10 bg-white/5" />
+            <div className="h-48 animate-pulse rounded-2xl border border-slate-200 bg-white md:col-span-2" />
+            <div className="h-48 animate-pulse rounded-2xl border border-slate-200 bg-white" />
           </div>
         )}
       </main>
diff --git a/frontend/components/account/AccountEntry.tsx b/frontend/components/account/AccountEntry.tsx
index 6f68507e..a75f77f7 100644
--- a/frontend/components/account/AccountEntry.tsx
+++ b/frontend/components/account/AccountEntry.tsx
@@ -10,14 +10,14 @@ const AccountCenter = dynamic(
   {
     ssr: false,
     loading: () => (
-      <div className="min-h-screen bg-slate-950 text-slate-300">
+      <div className="min-h-screen bg-[#f4f7fb] text-slate-700">
         <div className="mx-auto w-full max-w-6xl px-6 py-10">
-          <div className="h-7 w-48 animate-pulse rounded bg-slate-800/80" />
+          <div className="h-7 w-48 animate-pulse rounded bg-slate-200" />
           <div className="mt-6 grid grid-cols-1 gap-4 md:grid-cols-3">
-            <div className="h-32 animate-pulse rounded-3xl bg-slate-800/70 md:col-span-2" />
-            <div className="h-32 animate-pulse rounded-3xl bg-slate-800/70" />
+            <div className="h-32 animate-pulse rounded-2xl border border-slate-200 bg-white md:col-span-2" />
+            <div className="h-32 animate-pulse rounded-2xl border border-slate-200 bg-white" />
           </div>
-          <div className="mt-6 h-72 animate-pulse rounded-3xl bg-slate-800/60" />
+          <div className="mt-6 h-72 animate-pulse rounded-2xl border border-slate-200 bg-white" />
         </div>
       </div>
     ),
diff --git a/frontend/components/account/AccountInfoRow.tsx b/frontend/components/account/AccountInfoRow.tsx
index eb835d9b..7f9da776 100644
--- a/frontend/components/account/AccountInfoRow.tsx
+++ b/frontend/components/account/AccountInfoRow.tsx
@@ -13,17 +13,17 @@ export const InfoRow = ({
   value,
   isPrimary = false,
 }: InfoRowProps) => (
-  <div className="flex min-w-0 flex-col gap-3 p-4 bg-white/5 rounded-2xl border border-white/5 hover:bg-white/10 transition-all group sm:flex-row sm:items-center sm:justify-between">
+  <div className="flex min-w-0 flex-col gap-3 rounded-xl border border-slate-200 bg-white p-4 transition-all hover:border-slate-300 hover:bg-slate-50 group sm:flex-row sm:items-center sm:justify-between">
     <div className="flex min-w-0 items-center gap-3">
-      <div className="shrink-0 p-2 bg-slate-800 rounded-lg text-slate-400 group-hover:text-blue-400 transition-colors">
+      <div className="shrink-0 rounded-lg border border-slate-200 bg-slate-50 p-2 text-slate-500 transition-colors group-hover:text-blue-600">
         {Icon && <Icon size={18} />}
       </div>
-      <span className="min-w-0 text-slate-400 text-sm font-medium leading-5">
+      <span className="min-w-0 text-sm font-medium leading-5 text-slate-500">
         {label}
       </span>
     </div>
     <span
-      className={`min-w-0 break-all text-left text-sm font-semibold font-mono sm:text-right ${isPrimary ? "text-blue-400" : "text-slate-200"}`}
+      className={`min-w-0 break-all text-left font-mono text-sm font-semibold sm:text-right ${isPrimary ? "text-blue-700" : "text-slate-900"}`}
     >
       {value}
     </span>
diff --git a/frontend/components/auth/LoginClient.tsx b/frontend/components/auth/LoginClient.tsx
index 7a7750ab..25ce5195 100644
--- a/frontend/components/auth/LoginClient.tsx
+++ b/frontend/components/auth/LoginClient.tsx
@@ -217,53 +217,52 @@ export function LoginClient({ nextPath }: LoginClientProps) {
   const isLogin = mode === "login";
 
   return (
-    <div className="relative flex min-h-screen w-full items-center justify-center overflow-hidden bg-[#0f172a] font-sans">
-      <div className="absolute left-[-10%] top-[-10%] h-[40vw] w-[40vw] animate-pulse rounded-full bg-blue-600/20 blur-[120px]" />
-      <div className="absolute bottom-[-10%] right-[-10%] h-[30vw] w-[30vw] rounded-full bg-indigo-500/20 blur-[100px]" />
+    <div className="relative flex min-h-screen w-full flex-col items-center justify-center overflow-hidden bg-[#f4f7fb] px-4 py-8 font-sans text-slate-900">
+      <div className="absolute inset-x-0 top-0 h-24 border-b border-slate-200 bg-white" />
 
-      <div className="relative mx-4 w-full max-w-[420px] rounded-[2rem] border border-white/10 bg-white/5 p-8 shadow-2xl backdrop-blur-xl">
+      <div className="relative w-full max-w-[420px] rounded-2xl border border-slate-200 bg-white p-8 shadow-[0_24px_70px_rgba(15,23,42,0.12)]">
         <Link
           href="/"
-          className="group absolute left-6 top-6 rounded-full border border-white/10 bg-white/5 p-2 text-slate-400 transition-all hover:bg-white/10 hover:text-white active:scale-90"
+          className="group absolute left-6 top-6 rounded-lg border border-slate-200 bg-slate-50 p-2 text-slate-500 transition-all hover:border-slate-300 hover:bg-white hover:text-slate-900 active:scale-95"
           title={copy.backHome}
           aria-label={copy.backHome}
         >
           <ChevronLeft className="h-5 w-5 transition-transform group-hover:-translate-x-0.5" />
         </Link>
         <div className="mb-8 flex flex-col items-center">
-          <div className="mb-4 flex h-16 w-16 items-center justify-center rounded-2xl bg-gradient-to-tr from-blue-500 to-indigo-400 shadow-lg shadow-blue-500/20">
+          <div className="mb-4 flex h-16 w-16 items-center justify-center rounded-xl border border-blue-200 bg-blue-600 shadow-sm">
             <Cloud className="h-10 w-10 text-white" />
           </div>
-          <h1 className="text-3xl font-bold tracking-tight text-white">PolyWeather</h1>
-          <p className="mt-2 text-sm text-slate-400">{copy.subtitle}</p>
+          <h1 className="text-3xl font-bold tracking-tight text-slate-950">PolyWeather</h1>
+          <p className="mt-2 text-center text-sm text-slate-500">{copy.subtitle}</p>
         </div>
 
         <button
           type="button"
           onClick={() => void onGoogleSignIn()}
           disabled={loading}
-          className="mb-6 flex w-full items-center justify-center rounded-xl bg-white px-4 py-3.5 font-semibold text-slate-900 shadow-lg transition-all duration-200 hover:bg-slate-100 active:scale-[0.98] disabled:cursor-not-allowed disabled:opacity-70"
+          className="mb-6 flex w-full items-center justify-center rounded-lg border border-slate-300 bg-white px-4 py-3.5 font-semibold text-slate-900 shadow-sm transition-all duration-200 hover:border-slate-400 hover:bg-slate-50 active:scale-[0.99] disabled:cursor-not-allowed disabled:opacity-70"
         >
           <Chrome className="mr-3 h-5 w-5" />
           {copy.googleOneClick}
         </button>
 
         <div className="my-6 flex items-center">
-          <div className="h-[1px] flex-grow bg-white/10" />
-          <span className="px-4 text-xs font-medium uppercase tracking-widest text-slate-500">
+          <div className="h-px flex-grow bg-slate-200" />
+          <span className="px-4 text-xs font-semibold uppercase text-slate-500">
             {copy.orEmail}
           </span>
-          <div className="h-[1px] flex-grow bg-white/10" />
+          <div className="h-px flex-grow bg-slate-200" />
         </div>
 
-        <div className="mb-6 flex rounded-xl bg-black/20 p-1">
+        <div className="mb-6 flex rounded-lg border border-slate-200 bg-slate-100 p-1">
           <button
             type="button"
             onClick={() => setMode("login")}
             className={`flex-1 rounded-lg py-2 text-sm font-medium transition-all ${
               isLogin
-                ? "bg-blue-600 text-white shadow-md"
-                : "text-slate-400 hover:text-slate-200"
+                ? "bg-white text-slate-950 shadow-sm"
+                : "text-slate-500 hover:text-slate-900"
             }`}
           >
             {copy.login}
@@ -273,8 +272,8 @@ export function LoginClient({ nextPath }: LoginClientProps) {
             onClick={() => setMode("signup")}
             className={`flex-1 rounded-lg py-2 text-sm font-medium transition-all ${
               !isLogin
-                ? "bg-blue-600 text-white shadow-md"
-                : "text-slate-400 hover:text-slate-200"
+                ? "bg-white text-slate-950 shadow-sm"
+                : "text-slate-500 hover:text-slate-900"
             }`}
           >
             {copy.signup}
@@ -290,7 +289,7 @@ export function LoginClient({ nextPath }: LoginClientProps) {
               value={email}
               onChange={(event) => setEmail(event.target.value)}
               placeholder="you@example.com"
-              className="w-full rounded-xl border border-white/10 bg-white/5 py-3.5 pl-12 pr-4 text-white placeholder:text-slate-600 transition-all focus:border-blue-500/50 focus:outline-none focus:ring-2 focus:ring-blue-500/50"
+              className="w-full rounded-lg border border-slate-300 bg-white py-3.5 pl-12 pr-4 text-slate-950 placeholder:text-slate-400 transition-all focus:border-blue-500 focus:outline-none focus:ring-2 focus:ring-blue-500/20"
             />
           </div>
           <div className="relative">
@@ -306,7 +305,7 @@ export function LoginClient({ nextPath }: LoginClientProps) {
                   ? copy.passwordLoginPlaceholder
                   : copy.passwordSignupPlaceholder
               }
-              className="w-full rounded-xl border border-white/10 bg-white/5 py-3.5 pl-12 pr-4 text-white placeholder:text-slate-600 transition-all focus:border-blue-500/50 focus:outline-none focus:ring-2 focus:ring-blue-500/50"
+              className="w-full rounded-lg border border-slate-300 bg-white py-3.5 pl-12 pr-4 text-slate-950 placeholder:text-slate-400 transition-all focus:border-blue-500 focus:outline-none focus:ring-2 focus:ring-blue-500/20"
             />
           </div>
 
@@ -316,7 +315,7 @@ export function LoginClient({ nextPath }: LoginClientProps) {
                 type="button"
                 onClick={() => void onResetPassword()}
                 disabled={loading}
-                className="text-xs text-slate-500 underline-offset-2 transition-all hover:text-blue-400 hover:underline disabled:opacity-50"
+                className="text-xs text-slate-500 underline-offset-2 transition-all hover:text-blue-600 hover:underline disabled:opacity-50"
               >
                 {copy.reset}
               </button>
@@ -326,15 +325,15 @@ export function LoginClient({ nextPath }: LoginClientProps) {
           <button
             type="submit"
             disabled={loading}
-            className="group mt-8 flex w-full items-center justify-center rounded-xl bg-gradient-to-r from-blue-600 to-indigo-600 py-3.5 font-bold text-white shadow-xl shadow-blue-600/20 transition-all hover:from-blue-500 hover:to-indigo-500 active:scale-[0.98] disabled:cursor-not-allowed disabled:opacity-70"
+            className="group mt-8 flex w-full items-center justify-center rounded-lg border border-blue-700 bg-blue-600 py-3.5 font-bold text-white shadow-sm transition-all hover:bg-blue-700 active:scale-[0.99] disabled:cursor-not-allowed disabled:opacity-70"
           >
             {isLogin ? copy.loginSubmit : copy.signupSubmit}
             <ArrowRight className="ml-2 h-5 w-5 transition-transform group-hover:translate-x-1" />
           </button>
         </form>
 
-        {errorText ? <p className="mt-4 text-sm text-rose-300">{errorText}</p> : null}
-        {infoText ? <p className="mt-4 text-sm text-emerald-300">{infoText}</p> : null}
+        {errorText ? <p className="mt-4 rounded-lg border border-rose-200 bg-rose-50 px-3 py-2 text-sm text-rose-700">{errorText}</p> : null}
+        {infoText ? <p className="mt-4 rounded-lg border border-emerald-200 bg-emerald-50 px-3 py-2 text-sm text-emerald-700">{infoText}</p> : null}
         {errorText && isLogin && errorText.includes("Invalid login") ? (
           <p className="mt-1 text-xs text-slate-500">{copy.loginFailedHint}</p>
         ) : null}
@@ -353,7 +352,7 @@ export function LoginClient({ nextPath }: LoginClientProps) {
         ) : null}
       </div>
 
-      <div className="absolute bottom-8 flex items-center gap-4 text-sm text-slate-600">
+      <div className="relative mt-6 flex items-center gap-4 text-sm font-medium text-slate-500">
         <span className="flex items-center">
           <Sun className="mr-1 h-4 w-4" /> {copy.realtime}
         </span>
diff --git a/frontend/components/dashboard/DetailPanelSections.module.css b/frontend/components/dashboard/DetailPanelSections.module.css
index b4fa1c38..d37b7487 100644
--- a/frontend/components/dashboard/DetailPanelSections.module.css
+++ b/frontend/components/dashboard/DetailPanelSections.module.css
@@ -1062,3 +1062,33 @@
 
 
 @keyframes spin { to { transform: rotate(360deg); } }
+
+/* ── Model Forecast Light Mode Overrides ── */
+:global(html.light) .root :global(.model-group) {
+  background: #f8fafc;
+  border-left-color: var(--color-border-default);
+}
+
+:global(html.light) .root :global(.model-bar-track) {
+  background: var(--color-bg-input);
+}
+
+:global(html.light) .root :global(.model-bar-value) {
+  color: #ffffff;
+  text-shadow: 0 1px 2px rgba(15, 23, 42, 0.4);
+}
+
+:global(html.light) .root :global(.model-name strong) {
+  color: var(--color-text-primary);
+}
+
+:global(html.light) .root :global(.model-name span) {
+  color: var(--color-text-muted);
+}
+
+:global(html.light) .root :global(.model-stack-summary span) {
+  background: #ffffff;
+  border-color: var(--color-border-default);
+  color: var(--color-text-secondary);
+}
+
diff --git a/frontend/components/dashboard/ScanTerminal.module.css b/frontend/components/dashboard/ScanTerminal.module.css
index 9bbfe4eb..06836132 100644
--- a/frontend/components/dashboard/ScanTerminal.module.css
+++ b/frontend/components/dashboard/ScanTerminal.module.css
@@ -714,6 +714,55 @@
   background: var(--bg-card);
 }
 
+/* ── Segmented Control: Locale Switcher in Light Mode ── */
+.root :global(.scan-terminal.light .scan-locale-switch) {
+  border-color: #cbd5e1 !important;
+  background: #e2e8f0 !important;
+  color: #64748b !important;
+}
+
+.root :global(.scan-terminal.light .scan-locale-switch span) {
+  color: #64748b !important;
+}
+
+.root :global(.scan-terminal.light .scan-locale-switch span.active) {
+  color: #0f172a !important;
+  background: #ffffff !important;
+  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08) !important;
+}
+
+/* ── Status Chips and Manual Refresh button in Light Mode ── */
+.root :global(.scan-terminal.light .scan-status-chip) {
+  border-color: #cbd5e1 !important;
+  background: #ffffff !important;
+  color: #475569 !important;
+  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05) !important;
+}
+
+.root :global(.scan-terminal.light .scan-status-chip.live) {
+  border-color: rgba(16, 185, 129, 0.22) !important;
+  background: rgba(16, 185, 129, 0.12) !important;
+  color: #065f46 !important;
+}
+
+.root :global(.scan-terminal.light .scan-status-chip.stale) {
+  border-color: rgba(245, 158, 11, 0.24) !important;
+  background: rgba(245, 158, 11, 0.12) !important;
+  color: #92400e !important;
+}
+
+.root :global(.scan-terminal.light button.scan-status-chip.refresh) {
+  border-color: #cbd5e1 !important;
+  background: #ffffff !important;
+  color: #1e293b !important;
+}
+
+.root :global(.scan-terminal.light button.scan-status-chip.refresh:hover) {
+  background: #f8fafc !important;
+  border-color: #94a3b8 !important;
+}
+
+
 .root :global(.scan-terminal.light .scan-mode-tab.active) {
   color: #1D4ED8;
   background: #DBEAFE;
@@ -814,9 +863,7 @@
   background: linear-gradient(180deg, rgba(224, 247, 255, 0.82), rgba(241, 248, 255, 0.92));
 }
 
-.root :global(.scan-terminal.light .scan-locale-switch),
 .root :global(.scan-terminal.light .scan-ghost-button),
-.root :global(.scan-terminal.light .scan-theme-button),
 .root :global(.scan-terminal.light .scan-sort-pill),
 .root :global(.scan-terminal.light .scan-icon-pill),
 .root :global(.scan-terminal.light .scan-account-button),
@@ -1221,128 +1268,128 @@
 
 /* ── Leaflet map light overrides (needs !important to beat Leaflet inline styles) ── */
 .root :global(.map),
-html.light .root :global(.scan-terminal.light .scan-map-shell .map),
-html.light .root :global(.scan-terminal.light .scan-map-shell .leaflet-container),
-html.light .root :global(.leaflet-container),
-html.light .root :global(.leaflet-pane),
-html.light .root :global(.leaflet-map-pane),
-html.light .root :global(.leaflet-tile-pane) {
+:global(html.light) .root :global(.scan-terminal.light .scan-map-shell .map),
+:global(html.light) .root :global(.scan-terminal.light .scan-map-shell .leaflet-container),
+:global(html.light) .root :global(.leaflet-container),
+:global(html.light) .root :global(.leaflet-pane),
+:global(html.light) .root :global(.leaflet-map-pane),
+:global(html.light) .root :global(.leaflet-tile-pane) {
   background: #eef7ff !important;
 }
 
 /* ── City detail rail light overrides ── */
-html.light .root :global(.scan-city-detail-rail),
-html.light .root :global(.scan-terminal.light > .detail-panel.scan-city-detail-rail) {
+:global(html.light) .root :global(.scan-city-detail-rail),
+:global(html.light) .root :global(.scan-terminal.light > .detail-panel.scan-city-detail-rail) {
   background: linear-gradient(180deg, rgba(238, 247, 255, 0.98), rgba(255, 255, 255, 0.96));
   border-color: rgba(37, 99, 235, 0.16);
   color: var(--text-primary);
 }
 
-html.light .root :global(.scan-city-detail-rail .panel-header),
-html.light .root :global(.scan-city-detail-rail .detail-structured-section),
-html.light .root :global(.scan-city-detail-rail .detail-summary-shell),
-html.light .root :global(.scan-city-detail-rail .detail-card) {
+:global(html.light) .root :global(.scan-city-detail-rail .panel-header),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-structured-section),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-summary-shell),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-card) {
   background: rgba(255, 255, 255, 0.74);
   border-color: rgba(125, 171, 214, 0.28);
 }
 
-html.light .root :global(.scan-city-detail-rail h2),
-html.light .root :global(.scan-city-detail-rail h3),
-html.light .root :global(.scan-city-detail-rail strong),
-html.light .root :global(.scan-city-detail-rail .detail-value),
-html.light .root :global(.scan-city-detail-rail .detail-summary-temp),
-html.light .root :global(.scan-city-detail-rail .detail-section-head h3),
-html.light .root :global(.scan-city-detail-rail .panel-title-area h2) {
+:global(html.light) .root :global(.scan-city-detail-rail h2),
+:global(html.light) .root :global(.scan-city-detail-rail h3),
+:global(html.light) .root :global(.scan-city-detail-rail strong),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-value),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-summary-temp),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-section-head h3),
+:global(html.light) .root :global(.scan-city-detail-rail .panel-title-area h2) {
   color: var(--text-primary);
 }
 
-html.light .root :global(.scan-city-detail-rail p),
-html.light .root :global(.scan-city-detail-rail li),
-html.light .root :global(.scan-city-detail-rail small),
-html.light .root :global(.scan-city-detail-rail .panel-overline),
-html.light .root :global(.scan-city-detail-rail .panel-loading-hint),
-html.light .root :global(.scan-city-detail-rail .panel-meta-chip),
-html.light .root :global(.scan-city-detail-rail .detail-section-kicker),
-html.light .root :global(.scan-city-detail-rail .detail-label),
-html.light .root :global(.scan-city-detail-rail .detail-value-muted),
-html.light .root :global(.scan-city-detail-rail .detail-source-note),
-html.light .root :global(.scan-city-detail-rail .detail-source-kind),
-html.light .root :global(.scan-city-detail-rail .detail-mini-meta),
-html.light .root :global(.scan-city-detail-rail .detail-summary-supporting),
-html.light .root :global(.scan-city-detail-rail .scan-detail-city-sub),
-html.light .root :global(.scan-city-detail-rail .scan-detail-volume-caption),
-html.light .root :global(.scan-city-detail-rail .scan-detail-score-label),
-html.light .root :global(.scan-city-detail-rail .scan-detail-empty) {
+:global(html.light) .root :global(.scan-city-detail-rail p),
+:global(html.light) .root :global(.scan-city-detail-rail li),
+:global(html.light) .root :global(.scan-city-detail-rail small),
+:global(html.light) .root :global(.scan-city-detail-rail .panel-overline),
+:global(html.light) .root :global(.scan-city-detail-rail .panel-loading-hint),
+:global(html.light) .root :global(.scan-city-detail-rail .panel-meta-chip),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-section-kicker),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-label),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-value-muted),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-source-note),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-source-kind),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-mini-meta),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-summary-supporting),
+:global(html.light) .root :global(.scan-city-detail-rail .scan-detail-city-sub),
+:global(html.light) .root :global(.scan-city-detail-rail .scan-detail-volume-caption),
+:global(html.light) .root :global(.scan-city-detail-rail .scan-detail-score-label),
+:global(html.light) .root :global(.scan-city-detail-rail .scan-detail-empty) {
   color: var(--text-secondary);
 }
 
-html.light .root :global(.scan-city-detail-rail .panel-meta-chip),
-html.light .root :global(.scan-city-detail-rail .panel-weather-chip),
-html.light .root :global(.scan-city-detail-rail .detail-source-link),
-html.light .root :global(.scan-city-detail-rail .panel-action-button-secondary),
-html.light .root :global(.scan-city-detail-rail .panel-action-button-ghost) {
+:global(html.light) .root :global(.scan-city-detail-rail .panel-meta-chip),
+:global(html.light) .root :global(.scan-city-detail-rail .panel-weather-chip),
+:global(html.light) .root :global(.scan-city-detail-rail .detail-source-link),
+:global(html.light) .root :global(.scan-city-detail-rail .panel-action-button-secondary),
+:global(html.light) .root :global(.scan-city-detail-rail .panel-action-button-ghost) {
   background: #eef7ff;
   border-color: rgba(37, 99, 235, 0.18);
   color: #1f3654;
 }
 
 /* ── AI city card light overrides ── */
-html.light .root :global(.scan-terminal.light .scan-ai-city-card),
-html.light .root :global(.scan-terminal.light .scan-ai-city-section),
-html.light .root :global(.scan-terminal.light .scan-ai-decision-band),
-html.light .root :global(.scan-terminal.light .scan-ai-market-decision),
-html.light .root :global(.scan-terminal.light .scan-ai-decision-metrics span),
-html.light .root :global(.scan-terminal.light .scan-ai-city-pills span),
-html.light .root :global(.scan-terminal.light .scan-ai-city-freshness span),
-html.light .root :global(.scan-terminal.light .scan-ai-city-metrics > span),
-html.light .root :global(.scan-terminal.light .scan-mobile-decision-metrics span),
-html.light .root :global(.scan-terminal.light .scan-mobile-decision-reason) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-card),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-section),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-decision-band),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-market-decision),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-decision-metrics span),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-pills span),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-freshness span),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-metrics > span),
+:global(html.light) .root :global(.scan-terminal.light .scan-mobile-decision-metrics span),
+:global(html.light) .root :global(.scan-terminal.light .scan-mobile-decision-reason) {
   background: #eef7ff;
   border-color: rgba(37, 99, 235, 0.16);
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-city-metrics > span.primary) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-metrics > span.primary) {
   background: #dbeafe;
   border-color: rgba(59, 130, 246, 0.34);
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-city-metrics b) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-metrics b) {
   color: var(--text-primary);
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-city-metrics > span.primary b) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-metrics > span.primary b) {
   color: #1d4ed8;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-city-metrics small) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-metrics small) {
   color: #64748b;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-city-card p),
-html.light .root :global(.scan-terminal.light .scan-ai-city-card li),
-html.light .root :global(.scan-terminal.light .scan-ai-city-card small),
-html.light .root :global(.scan-terminal.light .scan-ai-city-card span:not(.scan-ai-city-kicker)) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-card p),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-card li),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-card small),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-card span:not(.scan-ai-city-kicker)) {
   color: var(--text-secondary);
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-city-status-tag.green) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-status-tag.green) {
   color: #047857;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-city-status-tag.blue) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-status-tag.blue) {
   color: #1d4ed8;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-city-status-tag.amber) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-status-tag.amber) {
   color: #b45309;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-city-status-tag.red) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-status-tag.red) {
   color: #b91c1c;
 }
 
 /* ── Upgrade announcement light overrides ── */
-html.light .root :global(.scan-terminal.light .scan-upgrade-announcement) {
+:global(html.light) .root :global(.scan-terminal.light .scan-upgrade-announcement) {
   background:
     radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 36%),
     var(--bg-card);
@@ -1350,188 +1397,188 @@ html.light .root :global(.scan-terminal.light .scan-upgrade-announcement) {
   box-shadow: 0 16px 36px rgba(61, 100, 145, 0.12);
 }
 
-html.light .root :global(.scan-terminal.light .scan-upgrade-announcement-copy strong),
-html.light .root :global(.scan-terminal.light .scan-ai-city-mobile-priority b),
-html.light .root :global(.scan-terminal.light .scan-mobile-decision-metrics b),
-html.light .root :global(.scan-terminal.light .scan-mobile-decision-reason),
-html.light .root :global(.scan-terminal.light .scan-mobile-decision-head h3),
-html.light .root :global(.scan-terminal.light .scan-ai-market-mobile-line b) {
+:global(html.light) .root :global(.scan-terminal.light .scan-upgrade-announcement-copy strong),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-mobile-priority b),
+:global(html.light) .root :global(.scan-terminal.light .scan-mobile-decision-metrics b),
+:global(html.light) .root :global(.scan-terminal.light .scan-mobile-decision-reason),
+:global(html.light) .root :global(.scan-terminal.light .scan-mobile-decision-head h3),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-market-mobile-line b) {
   color: var(--text-primary);
 }
 
-html.light .root :global(.scan-terminal.light .scan-upgrade-announcement-copy p),
-html.light .root :global(.scan-terminal.light .scan-upgrade-announcement li),
-html.light .root :global(.scan-terminal.light .scan-ai-city-mobile-priority small),
-html.light .root :global(.scan-terminal.light .scan-mobile-decision-metrics small),
-html.light .root :global(.scan-terminal.light .scan-ai-market-mobile-line span) {
+:global(html.light) .root :global(.scan-terminal.light .scan-upgrade-announcement-copy p),
+:global(html.light) .root :global(.scan-terminal.light .scan-upgrade-announcement li),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-mobile-priority small),
+:global(html.light) .root :global(.scan-terminal.light .scan-mobile-decision-metrics small),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-market-mobile-line span) {
   color: var(--text-secondary);
 }
 
-html.light .root :global(.scan-terminal.light .scan-upgrade-announcement-copy span) {
+:global(html.light) .root :global(.scan-terminal.light .scan-upgrade-announcement-copy span) {
   color: #047857;
 }
 
-html.light .root :global(.scan-terminal.light .scan-upgrade-announcement li),
-html.light .root :global(.scan-terminal.light .scan-ai-city-mobile-priority span),
-html.light .root :global(.scan-terminal.light .scan-ai-decision-why),
-html.light .root :global(.scan-terminal.light .scan-ai-market-mobile-line) {
+:global(html.light) .root :global(.scan-terminal.light .scan-upgrade-announcement li),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-mobile-priority span),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-decision-why),
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-market-mobile-line) {
   background: #eef7ff;
   border-color: rgba(37, 99, 235, 0.16);
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-decision-why) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-decision-why) {
   color: #1d4ed8;
 }
 
 /* ── Section titles ── */
-html.light .root :global(.scan-terminal.light .scan-ai-city-section-title) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-section-title) {
   color: #1d4ed8;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-decision-band span) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-decision-band span) {
   color: #1d4ed8;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-decision-band p) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-decision-band p) {
   color: var(--text-muted);
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-decision-band strong) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-decision-band strong) {
   color: var(--text-primary);
 }
 
 /* ── Scrollbar light overrides ── */
-html.light .root :global(.scan-terminal.light .scan-ai-city-body) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-city-body) {
   scrollbar-color: rgba(37, 99, 235, 0.18) transparent;
 }
 
-html.light .root :global(.scan-ai-city-body::-webkit-scrollbar-thumb) {
+:global(html.light) .root :global(.scan-ai-city-body::-webkit-scrollbar-thumb) {
   background: rgba(37, 99, 235, 0.22);
 }
 
 /* ── AI prediction dual-card light mode ── */
-html.light .root :global(.scan-terminal.light .scan-ai-prediction-card) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-prediction-card) {
   background: var(--bg-card);
   border-color: var(--border-glass);
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-prediction-card.ai) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-prediction-card.ai) {
   background: linear-gradient(180deg, rgba(219, 234, 254, 0.52), var(--bg-card));
   border-color: rgba(14, 165, 233, 0.28);
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-prediction-card.deb) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-prediction-card.deb) {
   background: var(--bg-card);
   border-color: var(--border-glass);
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-prediction-card small) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-prediction-card small) {
   color: #64748b;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-prediction-card strong) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-prediction-card strong) {
   color: var(--text-primary);
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-prediction-card.ai strong) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-prediction-card.ai strong) {
   color: #0369a1;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-prediction-card em) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-prediction-card em) {
   color: #64748b;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-prediction-card.ai.pending) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-prediction-card.ai.pending) {
   background: rgba(219, 234, 254, 0.28);
   border-color: rgba(14, 165, 233, 0.16);
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-prediction-card.ai.pending strong) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-prediction-card.ai.pending strong) {
   color: #94a3b8;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-confidence) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-confidence) {
   background: rgba(59, 130, 246, 0.1);
   color: #2563eb;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-confidence.high) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-confidence.high) {
   background: rgba(16, 185, 129, 0.12);
   color: #047857;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-confidence.medium) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-confidence.medium) {
   background: rgba(245, 158, 11, 0.12);
   color: #b45309;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-confidence.low) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-confidence.low) {
   background: rgba(148, 163, 184, 0.12);
   color: #64748b;
 }
 
-html.light .root :global(.scan-terminal.light .scan-ai-confidence.neutral) {
+:global(html.light) .root :global(.scan-terminal.light .scan-ai-confidence.neutral) {
   background: rgba(148, 163, 184, 0.08);
   color: #64748b;
 }
 
 /* ── Empty / Error / Retry light overrides ── */
-html.light .root :global(.scan-terminal.light .scan-empty-title),
-html.light .root :global(.scan-terminal.light .scan-error-title) {
+:global(html.light) .root :global(.scan-terminal.light .scan-empty-title),
+:global(html.light) .root :global(.scan-terminal.light .scan-error-title) {
   color: var(--text-primary);
 }
 
-html.light .root :global(.scan-terminal.light .scan-empty-copy),
-html.light .root :global(.scan-terminal.light .scan-error-copy) {
+:global(html.light) .root :global(.scan-terminal.light .scan-empty-copy),
+:global(html.light) .root :global(.scan-terminal.light .scan-error-copy) {
   color: var(--text-muted);
 }
 
-html.light .root :global(.scan-terminal.light .scan-empty-icon) {
+:global(html.light) .root :global(.scan-terminal.light .scan-empty-icon) {
   background: rgba(37, 99, 235, 0.08);
   border-color: rgba(37, 99, 235, 0.2);
   color: #2563EB;
 }
 
-html.light .root :global(.scan-terminal.light .scan-error-icon) {
+:global(html.light) .root :global(.scan-terminal.light .scan-error-icon) {
   background: rgba(239, 68, 68, 0.06);
   border-color: rgba(239, 68, 68, 0.18);
   color: #DC2626;
 }
 
-html.light .root :global(.scan-terminal.light .scan-retry-button) {
+:global(html.light) .root :global(.scan-terminal.light .scan-retry-button) {
   background: rgba(37, 99, 235, 0.08);
   border-color: rgba(37, 99, 235, 0.24);
   color: #2563EB;
 }
 
-html.light .root :global(.scan-terminal.light .scan-retry-button:hover) {
+:global(html.light) .root :global(.scan-terminal.light .scan-retry-button:hover) {
   background: rgba(37, 99, 235, 0.14);
 }
 
 /* ── AMOS runway panel light overrides ── */
-html.light .root :global(.scan-terminal.light .scan-amos-runway-panel) {
+:global(html.light) .root :global(.scan-terminal.light .scan-amos-runway-panel) {
   background: rgba(37, 99, 235, 0.03);
   border-color: rgba(37, 99, 235, 0.12);
 }
 
-html.light .root :global(.scan-terminal.light .scan-amos-runway-card) {
+:global(html.light) .root :global(.scan-terminal.light .scan-amos-runway-card) {
   background: var(--bg-card);
   border-color: rgba(37, 99, 235, 0.08);
 }
 
-html.light .root :global(.scan-terminal.light .scan-amos-runway-label) {
+:global(html.light) .root :global(.scan-terminal.light .scan-amos-runway-label) {
   color: #2563EB;
 }
 
-html.light .root :global(.scan-terminal.light .scan-amos-runway-temp) {
+:global(html.light) .root :global(.scan-terminal.light .scan-amos-runway-temp) {
   color: var(--text-primary);
 }
 
-html.light .root :global(.scan-terminal.light .scan-amos-source-tag) {
+:global(html.light) .root :global(.scan-terminal.light .scan-amos-source-tag) {
   background: rgba(37, 99, 235, 0.08);
   color: #2563EB;
 }
 
-html.light .root :global(.scan-terminal.light .scan-amos-runway-detail) {
+:global(html.light) .root :global(.scan-terminal.light .scan-amos-runway-detail) {
   color: #64748B;
 }
diff --git a/frontend/components/dashboard/ScanTerminalCard.module.css b/frontend/components/dashboard/ScanTerminalCard.module.css
index b5976303..2b6d4a27 100644
--- a/frontend/components/dashboard/ScanTerminalCard.module.css
+++ b/frontend/components/dashboard/ScanTerminalCard.module.css
@@ -1337,3 +1337,60 @@
 }
 
 @keyframes spin { to { transform: rotate(360deg); } }
+
+/* ── AI prediction dual-card light mode ── */
+:global(html.light) .root :global(.scan-ai-prediction-card) {
+  background: var(--color-bg-raised);
+  border-color: var(--color-border-default);
+}
+
+:global(html.light) .root :global(.scan-ai-prediction-card.ai) {
+  background: linear-gradient(180deg, rgba(37, 99, 235, 0.08), var(--color-bg-raised));
+  border-color: rgba(37, 99, 235, 0.22);
+}
+
+:global(html.light) .root :global(.scan-ai-prediction-card.deb) {
+  background: var(--color-bg-raised);
+  border-color: var(--color-border-default);
+}
+
+:global(html.light) .root :global(.scan-ai-prediction-card small) {
+  color: var(--color-text-muted);
+}
+
+:global(html.light) .root :global(.scan-ai-prediction-card strong) {
+  color: var(--color-text-primary);
+}
+
+:global(html.light) .root :global(.scan-ai-prediction-card.ai strong) {
+  color: var(--color-accent-primary);
+}
+
+:global(html.light) .root :global(.scan-ai-prediction-card em) {
+  color: var(--color-text-muted);
+}
+
+:global(html.light) .root :global(.scan-ai-prediction-card.ai.pending) {
+  background: rgba(37, 99, 235, 0.04);
+  border-color: rgba(37, 99, 235, 0.12);
+}
+
+:global(html.light) .root :global(.scan-ai-prediction-card.ai.pending strong) {
+  color: var(--color-text-disabled);
+}
+
+:global(html.light) .root :global(.scan-ai-confidence) {
+  background: rgba(37, 99, 235, 0.1);
+  color: var(--color-accent-primary);
+}
+
+:global(html.light) .root :global(.scan-ai-confidence.high) {
+  background: rgba(16, 185, 129, 0.12);
+  color: #047857;
+}
+
+:global(html.light) .root :global(.scan-ai-confidence.medium) {
+  background: rgba(245, 158, 11, 0.12);
+  color: #b45309;
+}
+
diff --git a/frontend/components/dashboard/ScanTerminalDashboard.tsx b/frontend/components/dashboard/ScanTerminalDashboard.tsx
index ef6032c7..63aef76b 100644
--- a/frontend/components/dashboard/ScanTerminalDashboard.tsx
+++ b/frontend/components/dashboard/ScanTerminalDashboard.tsx
@@ -117,6 +117,15 @@ function ScanTerminalScreen() {
     }
   }, [terminalData?.generated_at]);
 
+  useEffect(() => {
+    if (activeView === "map") {
+      const timer = setTimeout(() => {
+        window.dispatchEvent(new Event("resize"));
+      }, 150);
+      return () => clearTimeout(timer);
+    }
+  }, [activeView]);
+
   const scanTerminalRootClassName = clsx(
     styles.root,
     scanRootClass,
diff --git a/frontend/components/dashboard/ScanTerminalList.module.css b/frontend/components/dashboard/ScanTerminalList.module.css
index c2c17dc8..98991636 100644
--- a/frontend/components/dashboard/ScanTerminalList.module.css
+++ b/frontend/components/dashboard/ScanTerminalList.module.css
@@ -520,3 +520,23 @@
 
 
 @keyframes spin { to { transform: rotate(360deg); } }
+
+/* ── City Jumpbar Light Mode Overrides ── */
+:global(html.light) .root :global(.scan-ai-city-jumpbar) {
+  background: #ffffff;
+  border-color: #d8e0ec;
+  box-shadow: var(--shadow-elevation-1);
+}
+
+:global(html.light) .root :global(.scan-ai-city-jumpbar button) {
+  background: var(--color-bg-input);
+  border-color: var(--color-border-default);
+  color: var(--color-text-secondary);
+}
+
+:global(html.light) .root :global(.scan-ai-city-jumpbar button:hover) {
+  background: #e2e8f0;
+  border-color: var(--color-border-hover);
+  color: var(--color-text-primary);
+}
+
diff --git a/frontend/components/dashboard/ScanTerminalMobile.module.css b/frontend/components/dashboard/ScanTerminalMobile.module.css
index 4c26c450..5e688be3 100644
--- a/frontend/components/dashboard/ScanTerminalMobile.module.css
+++ b/frontend/components/dashboard/ScanTerminalMobile.module.css
@@ -624,10 +624,6 @@
     height: 38px;
   }
 
-  .root :global(.scan-theme-button) {
-    width: 38px;
-    height: 38px;
-  }
 }
 
 /* ── Mobile City Picker ── */
diff --git a/frontend/components/dashboard/ScanTerminalShell.module.css b/frontend/components/dashboard/ScanTerminalShell.module.css
index 001ad932..75a798d1 100644
--- a/frontend/components/dashboard/ScanTerminalShell.module.css
+++ b/frontend/components/dashboard/ScanTerminalShell.module.css
@@ -16,7 +16,7 @@
   justify-content: space-between;
   gap: 12px;
   padding: 6px 0 18px;
-  border-bottom: 1px solid rgba(118, 146, 188, 0.1);
+  border-bottom: 1px solid var(--color-border-default);
 }
 
 .root :global(.scan-topbar-title) {
@@ -30,12 +30,12 @@
   margin: 0;
   font-size: 28px;
   line-height: 1.08;
-  letter-spacing: -0.04em;
-  color: #f3f8ff;
+  letter-spacing: 0;
+  color: var(--color-text-primary);
 }
 
 .root :global(.scan-topbar-title span) {
-  color: #8fa4c3;
+  color: var(--color-text-secondary);
   font-size: 14px;
   line-height: 1.5;
 }
@@ -46,17 +46,17 @@
   flex-wrap: wrap;
   justify-content: flex-end;
   gap: 12px;
-  color: #b4c8e2;
+  color: var(--color-text-secondary);
   font-size: 14px;
 }
 
 .root :global(.scan-locale-switch) {
   height: 36px;
   padding: 3px;
-  border-radius: 12px;
-  border: 1px solid rgba(99, 132, 180, 0.18);
-  background: rgba(8, 19, 34, 0.9);
-  color: #a8bdd8;
+  border-radius: 10px;
+  border: 1px solid var(--color-border-default);
+  background: #e2e8f0;
+  color: var(--color-text-secondary);
   display: inline-flex;
   align-items: center;
   gap: 2px;
@@ -69,20 +69,20 @@
   min-width: 34px;
   height: 28px;
   padding: 0 8px;
-  border-radius: 8px;
+  border-radius: 7px;
   display: inline-flex;
   align-items: center;
   justify-content: center;
 }
 
 .root :global(.scan-locale-switch span.active) {
-  color: #eef7ff;
-  background: rgba(63, 140, 255, 0.16);
-  box-shadow: inset 0 0 0 1px rgba(63, 140, 255, 0.22);
+  color: var(--color-text-primary);
+  background: #ffffff;
+  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
 }
 
 .root :global(.scan-topbar-time) {
-  color: #b4c8e2;
+  color: var(--color-text-secondary);
   font-variant-numeric: tabular-nums;
 }
 
@@ -92,12 +92,11 @@
   gap: 16px;
   align-items: center;
   margin: -4px 0 6px;
-  border: 1px solid rgba(77, 163, 255, 0.2);
-  border-radius: 18px;
+  border: 1px solid #bfdbfe;
+  border-radius: 12px;
   background:
-    radial-gradient(circle at top left, rgba(77, 163, 255, 0.18), transparent 36%),
-    linear-gradient(135deg, rgba(18, 33, 58, 0.96), rgba(15, 23, 42, 0.92));
-  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.2);
+    linear-gradient(90deg, rgba(239, 246, 255, 0.98), rgba(255, 255, 255, 0.98));
+  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
   padding: 16px 18px;
 }
 
@@ -106,7 +105,7 @@
 }
 
 .root :global(.scan-upgrade-announcement-copy span) {
-  color: #86efac;
+  color: #047857;
   font-size: 12px;
   font-weight: 900;
   letter-spacing: 0.04em;
@@ -116,14 +115,14 @@
 .root :global(.scan-upgrade-announcement-copy strong) {
   display: block;
   margin-top: 5px;
-  color: #f3f8ff;
+  color: var(--color-text-primary);
   font-size: 18px;
   line-height: 1.25;
 }
 
 .root :global(.scan-upgrade-announcement-copy p) {
   margin: 6px 0 0;
-  color: #b4c8e2;
+  color: var(--color-text-secondary);
   font-size: 13px;
   line-height: 1.55;
 }
@@ -139,10 +138,10 @@
 }
 
 .root :global(.scan-upgrade-announcement li) {
-  border: 1px solid rgba(77, 163, 255, 0.22);
+  border: 1px solid #bfdbfe;
   border-radius: 999px;
-  background: rgba(77, 163, 255, 0.1);
-  color: #d7e5f7;
+  background: #eff6ff;
+  color: #1d4ed8;
   font-size: 12px;
   font-weight: 800;
   padding: 7px 10px;
@@ -158,16 +157,16 @@
   place-items: center;
   border: none;
   border-radius: 8px;
-  background: rgba(148, 163, 184, 0.1);
-  color: #94a3b8;
+  background: #f1f5f9;
+  color: #64748b;
   font-size: 14px;
   cursor: pointer;
   transition: background 0.15s, color 0.15s;
 }
 
 .root :global(.scan-announcement-dismiss:hover) {
-  background: rgba(148, 163, 184, 0.22);
-  color: #e2e8f0;
+  background: #e2e8f0;
+  color: #0f172a;
 }
 
 .root :global(.scan-upgrade-announcement) {
@@ -176,14 +175,13 @@
 
 .root :global(.scan-ghost-button),
 .root :global(.scan-cta-ghost),
-.root :global(.scan-theme-button),
 .root :global(.scan-detail-action-button),
 .root :global(.scan-detail-icon-button),
 .root :global(.scan-view-all-button) {
-  border: 1px solid rgba(99, 132, 180, 0.18);
-  background: rgba(8, 19, 34, 0.9);
-  color: #d7e5f7;
-  border-radius: 12px;
+  border: 1px solid var(--color-border-default);
+  background: var(--color-bg-raised);
+  color: var(--color-text-primary);
+  border-radius: 10px;
 }
 
 .root :global(.scan-ghost-button),
@@ -202,13 +200,13 @@
   min-height: 42px;
   padding: 11px 16px;
   border: 1px solid rgba(77, 163, 255, 0.42);
-  border-radius: 12px;
+  border-radius: 10px;
   background: linear-gradient(180deg, var(--color-accent-primary), #3B82F6);
   color: #FFFFFF;
   font-size: 14px;
   font-weight: 900;
   text-decoration: none;
-  box-shadow: 0 10px 24px rgba(59, 130, 246, 0.22);
+  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.18);
   cursor: pointer;
 }
 
@@ -227,18 +225,18 @@
   gap: 8px;
   min-height: 42px;
   padding: 11px 14px;
-  border: 1px solid rgba(77, 163, 255, 0.3);
-  border-radius: 12px;
-  background: linear-gradient(180deg, rgba(77, 163, 255, 0.18), rgba(59, 130, 246, 0.12));
-  color: #CFE6FF;
+  border: 1px solid #bfdbfe;
+  border-radius: 10px;
+  background: #eff6ff;
+  color: #1d4ed8;
   font-size: 13px;
   font-weight: 900;
   cursor: pointer;
 }
 
 .root :global(.scan-ai-button:hover:not(:disabled)) {
-  border-color: rgba(111, 183, 255, 0.5);
-  background: linear-gradient(180deg, rgba(77, 163, 255, 0.26), rgba(59, 130, 246, 0.18));
+  border-color: #93c5fd;
+  background: #dbeafe;
 }
 
 .root :global(.scan-ai-button:disabled) {
@@ -247,9 +245,9 @@
 }
 
 .root :global(.scan-cta-ghost) {
-  color: var(--color-accent-secondary);
-  border-color: rgba(23, 217, 139, 0.3);
-  background: rgba(23, 217, 139, 0.12);
+  color: #047857;
+  border-color: #a7f3d0;
+  background: #ecfdf5;
 }
 
 .root :global(.scan-account-button) {
@@ -258,26 +256,19 @@
   display: inline-flex;
   align-items: center;
   justify-content: center;
-  color: #d7e5f7;
+  color: var(--color-text-primary);
   text-decoration: none;
-  border: 1px solid rgba(99, 132, 180, 0.18);
-  background: rgba(8, 19, 34, 0.9);
-  border-radius: 12px;
+  border: 1px solid var(--color-border-default);
+  background: var(--color-bg-raised);
+  border-radius: 10px;
 }
 
 .root :global(.scan-account-button:hover) {
-  border-color: rgba(63, 140, 255, 0.28);
-  background: rgba(12, 26, 44, 0.96);
+  border-color: #94a3b8;
+  background: #f8fafc;
 }
 
-.root :global(.scan-theme-button) {
-  width: 36px;
-  height: 36px;
-  display: inline-grid;
-  place-items: center;
-  color: #d7e5f7;
-  cursor: pointer;
-}
+
 
 .root :global(.scan-ghost-button .spin) {
   animation: spin 1s linear infinite;